WO2018107689A1 - Méthode de prévention et de traitement de lésions rénales induites par des lipides - Google Patents
Méthode de prévention et de traitement de lésions rénales induites par des lipides Download PDFInfo
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- WO2018107689A1 WO2018107689A1 PCT/CN2017/089048 CN2017089048W WO2018107689A1 WO 2018107689 A1 WO2018107689 A1 WO 2018107689A1 CN 2017089048 W CN2017089048 W CN 2017089048W WO 2018107689 A1 WO2018107689 A1 WO 2018107689A1
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- Prior art keywords
- plasminogen
- drugs
- drug
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- hyperlipidemia
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/43—Enzymes; Proenzymes; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/04—Anorexiants; Antiobesity agents
Definitions
- the present invention relates to a method for preventing and/or treating a disorder of fat metabolism and a related disorder thereof, comprising administering an effective amount of plasminogen to a subject susceptible to or suffering from a disorder of fat metabolism and a related disorder thereof to reduce fat Abnormal deposition of tissues and organs in the body, thereby achieving the purpose of preventing and/or treating disorders of fat metabolism and related disorders and complications.
- Fat metabolism disorder also known as lipodystrophy
- lipids lipids
- Fat metabolism disorder is one of the metabolic diseases, which is caused by primary or acquired factors, lipids (lipids) and their metabolic substances and amounts in blood and other tissues and organs. abnormal. Lipid metabolism involves digestion and absorption of lipids in the small intestine, entry into the blood circulation by the lymphatic system (transport by lipoproteins), transformation by the liver, storage in adipose tissue, and utilization by tissues when needed. The main function of lipids in the body is to oxidize energy. Adipose tissue is the energy store of the body. Fat can also protect the internal organs with skin, bones and muscles, prevent body temperature from spreading and help the absorption of fat-soluble vitamins in food.
- Phospholipids are an important structural component of all cell membranes, and cholesterol is a precursor of bile acids and steroid hormones (adrenal cortical hormones and gonadal hormones). Lipid metabolism is regulated by genetics, neurohumoral fluids, hormones, enzymes, and tissues such as the liver. When these factors are abnormal, it can cause lipid metabolism disorder and pathophysiological changes of related organs, such as hyperlipoproteinemia and its clinical syndrome, obesity, fatty liver and so on.
- Hyperlipoproteinemia is caused by excessive lipoproteins in the blood. Lipids in the blood such as triglyceride (TG), free cholesterol (FC), cholesterol (CE) and phospholipids are rarely soluble in water, and only a macromolecular complex (lipoprotein) is formed with apolipoprotein (APO). In order to dissolve, operate and metabolize in the blood. When the blood lipid is higher than the upper limit of normal people, it is hyperlipemia. Hyperlipidemia is also called hyperlipoproteinemia because blood lipids are transported in the form of lipoproteins in the blood. Generally, adult fasting blood triglycerides exceed 160mg/dl, cholesterol exceeds 260mg/dl, and children's cholesterol exceeds 160mg/dl as standard [1] .
- Hyperlipoproteinemia hyperlipoproteinemia
- type I mainly chylomicrons, serum.
- turbidity is milky white, which contains a large amount of triglyceride (TG);
- type II is divided into two subtypes IIa and IIb.
- the former is mainly a low-density lipoprotein (LDL), and the latter is very low-density lipoprotein (VLDL).
- LDL low-density lipoprotein
- VLDL very low-density lipoprotein
- type III serum turbidity LDL and VLDL are increased, electrophoresis on the fusion
- type IV mainly VLDL increase, serum or turbidity
- V type chylomicrons and VLDL increase, serum opacity is milky white .
- type II and type IV are the most common [1] .
- Hyperlipidemia can be divided into primary and secondary categories according to the cause.
- Primary is mostly caused by congenital defects (or genetic defects) in lipid and lipoprotein metabolism, as well as certain environmental factors (including diet, nutrition, and drugs) through unknown mechanisms.
- Secondary is mainly secondary to certain diseases such as diabetes, liver disease, kidney disease, thyroid disease, as well as alcohol and obesity.
- Environmental factors such as diet and lifestyle are also the cause of the disease.
- diabetes often involves disorders of lipid metabolism, so diabetes is also known as "glycolipidosis" [2] .
- the pathogenesis of diabetes is related to B cell function damage and insulin resistance, which is characterized by chronic hyperglycemia, and the disorder of glucose metabolism often involves disorder of lipid metabolism.
- Diabetic lipid metabolism disorder has become an independent risk factor for cardiovascular disease, mainly characterized by hypertriglyceridemia, low levels of HDL, and increased LDL concentrations.
- diabetes lipid metabolism disorder is still unclear, but there is a lot of evidence that insulin resistance is the central link. Recent studies have also found that intestinal insulin resistance is also involved. Animal models of diabetes and population studies have found that abnormal expression of certain genes associated with lipid metabolism further leads to insulin resistance. The occurrence of atherosclerosis in diabetic patients is associated with a variety of factors, but abnormalities in plasma lipid levels are the most important factors. Studies have shown that the incidence and mortality of cardiovascular disease in diabetic patients is significantly higher than non-diabetic patients, diabetes has become an independent risk factor for cardiovascular disease [3] .
- nephropathy In recent years, the relationship between nephropathy and lipid metabolism disorders has become more and more conspicuous. In chronic progressive renal injury, abnormal lipid metabolism is often accompanied, and hyperlipidemia can promote and aggravate kidney damage, in addition to mediating glomerular injury. In addition, it also plays a role in tubulointerstitial damage. In 1913 Munk first described dyslipidemia in nephrotic syndrome. Some researchers have reported that 70%-10% of patients with nephrotic syndrome may have hyperlipidemia. It is mainly characterized by a significant increase in total cholesterol (TC) and a decrease in low-density lipoprotein cholesterol, a slight increase in triglyceride (TG), and an increase in low-density lipoprotein (LDL) and urine protein.
- TC total cholesterol
- TG triglyceride
- LDL low-density lipoprotein
- TC total cholesterol
- TG triglyceride
- LDLC low-density lipoprotein cholesterol
- VLDLC very low-density lipoprotein cholesterol
- Obesity is divided into two categories: simple and secondary. Simple obesity refers to obesity without obvious endocrine and metabolic diseases. It can be divided into two types: physical obesity and acquired obesity. There is a family history of constitutional obesity. The patient is rich in food intake from childhood, and the amount of excess is obese. The fat cells are hypertrophic and hypertrophic. Acquired obesity is mostly caused by overnutrition and/or reduced physical activity, such as improvement of living conditions after a middle age, adequate recovery of disease and rest, postpartum physical exercise or physical labor. The fat cells showed hypertrophic changes, no hyperplasia, and the treatment effect was better. Secondary obesity is mainly caused by neuroendocrine diseases.
- the hypothalamus has a center of appetite regulation, central nervous system inflammation sequelae, trauma, tumors, etc. can cause hypothalamic dysfunction, causing an appetite and causing obesity.
- 2 increased insulin secretion, such as early non-insulin-dependent diabetes mellitus injection of excessive insulin, resulting in hyperinsulinemia; islet B cell tumors secrete too much insulin, which increases fat synthesis, causing obesity.
- Cortisol is often accompanied by central obesity.
- 6 hypothyroidism due to low metabolic rate, fat accumulation, and mucus edema.
- 7 hypogonads can also be obese, such as obesity reproductive incompetence (cerebral obesity, Florik's syndrome, trauma, encephalitis, pituitary tumor, craniopharyngioma, etc. caused by damage to the hypothalamus, manifested as central obesity , with diabetes insipidus and sexual growth retardation).
- Lipid metabolism disorders often lead to fatty liver.
- Fatty liver refers to a lesion of excessive accumulation of fat in liver cells due to various reasons.
- the liver plays a particularly important role in lipid metabolism. It can synthesize lipoproteins, which is beneficial to lipid transport and is also the main site for fatty acid oxidation and ketone body formation.
- the normal liver fat content is not much, about 4%, mainly phospholipids. If the liver cannot transport the fat out in time, the fat accumulates in the liver cells, which forms fatty liver.
- Fatty liver can be an independent disease or can be caused by other causes, such as obesity fatty liver, alcoholic fatty liver, rapid weight loss fatty liver, malnutrition fatty liver, diabetic fatty liver, drug-induced fatty liver and so on.
- Certain drugs or chemical poisons cause fatty livers by inhibiting the synthesis of proteins such as tetracycline, adrenocortical hormone, puromycin, cyclohexylamine, ipecaine, and arsenic, lead, silver, mercury, and the like.
- Lipid lowering drugs can also form fatty liver by interfering with the metabolism of lipoproteins.
- Atherosclerosis One of the dangers of fatty liver is that it promotes the formation of atherosclerosis.
- One of the causes of atherosclerosis is that patients with fatty liver are often accompanied by hyperlipidemia, increased blood viscosity, and low-density lipoprotein (LDL). Because of its extremely small molecular weight, it easily passes through the intima of the arteries and settles on the vessel wall, which reduces the elasticity of the artery, narrows the diameter of the tube, and weakens the flexibility, eventually leading to blood circulation disorder.
- the second risk of fatty liver is to induce or aggravate high blood pressure, coronary heart disease, and easily lead to myocardial infarction and sudden death.
- the third risk of fatty liver is encephalopathy fatty liver syndrome (Reye syndrome).
- the fourth risk of fatty liver is cirrhosis, liver failure, and liver cancer.
- Fatty liver is a product of liver lipid metabolism disorder, and at the same time it is a causative factor that aggravates liver damage. This is a development of mutual causal and vicious circle.
- the increase of lipid droplets in the liver cells causes the liver cells to be steatotic and swollen, and the nucleus is squeezed off-center.
- the metabolism of fat should be carried out in the mitochondria.
- the transport of fat to the extracellular cells mainly passes through the smooth endoplasmic reticulum.
- the accumulation of fat in the hepatocytes further aggravates the burden of mitochondria and endoplasmic reticulum and reduces its function, thereby affecting other nutrients and hormones. Metabolism of vitamins.
- Cirrhosis is associated with a higher incidence of hepatocellular carcinoma.
- the fifth risk of fatty liver is acute pregnancy fatty liver with high mortality.
- This disease also known as obstetric acute yellow liver atrophy, is a rare pregnancy with a prognosis. Most occur in the last three months of pregnancy, clinical manifestations are often similar to acute liver, acute liver failure, pancreatitis, renal failure, systemic coagulation abnormalities leading to rapid death, the majority of pregnant women in the first pregnancy.
- the sixth risk of fatty liver is to induce or aggravate diabetes.
- the blood glucose concentration exceeds the normal level, although it does not meet the diagnostic criteria for diabetes, it is generally considered to be pre-diabetes.
- Fatty liver and diabetes often accompany each other and affect each other, which brings greater difficulties to clinical treatment.
- plasminogen can prevent and/or reduce abnormal deposition of fat in tissues and organs of the body, for example, can prevent and reduce abnormal deposition of lipids in tissues of blood, blood vessel walls, internal organs and organs, and improve these.
- the function of tissues and organs thus providing a new preventive and therapeutic solution for disorders of fat metabolism and related disorders, as well as its accompanying diseases or complications
- the invention relates to the following items:
- the invention relates to: 1. A method of preventing and/or treating a lipid-kidney injury and a related disorder thereof, comprising administering to a subject a prophylactically and/or therapeutically effective amount of plasminogen
- the subject is susceptible to a disorder of fat metabolism, suffering from a disorder of fat metabolism or suffering from other diseases accompanied by lipid-kidney damage.
- Item 2 The method of Item 1, wherein the lipid kidney injury is endocrine disorder disease, glucose metabolism disease, liver disease, kidney disease, cardiovascular disease, intestinal disease, thyroid disease, gallbladder or biliary disease, obesity, drinking , drug-induced or concomitant lipid-kidney damage.
- the lipid kidney injury is endocrine disorder disease, glucose metabolism disease, liver disease, kidney disease, cardiovascular disease, intestinal disease, thyroid disease, gallbladder or biliary disease, obesity, drinking , drug-induced or concomitant lipid-kidney damage.
- Item 3 The method of Item 2, wherein the lipid kidney injury is hyperlipidemia, hypertension, diabetes, chronic glomerulonephritis, chronic pyelonephritis, nephrotic syndrome, renal insufficiency, kidney transplantation, uremia, Lipid kidney damage caused by or associated with hypothyroidism, obstructive cholecystitis, obstructive cholangitis, drug or hormonal therapy.
- the lipid kidney injury is hyperlipidemia, hypertension, diabetes, chronic glomerulonephritis, chronic pyelonephritis, nephrotic syndrome, renal insufficiency, kidney transplantation, uremia, Lipid kidney damage caused by or associated with hypothyroidism, obstructive cholecystitis, obstructive cholangitis, drug or hormonal therapy.
- hyperlipidemia is type I, type IIa, type IIb, type III or type IV hyperlipidemia.
- hyperlipidemia comprises one or more selected from the group consisting of hypercholesterolemia, hypertriglyceridemia, mixed hyperlipidemia, and low high density lipoprotein Blood.
- the invention relates to: 10.
- the invention relates to: 11.
- the invention relates to: 12.
- the present invention relates to: Item 13.
- Item 15 The method of Item 14, wherein the one or more other drugs include a therapeutic drug for hypertension, a drug for treating diabetes, a drug for treating atherosclerosis, a drug for treating chronic glomerulonephritis, and a drug for treating chronic pyelonephritis , drugs for the treatment of nephrotic syndrome, drugs for the treatment of renal insufficiency, drugs for the treatment of uremia, drugs for the treatment of kidney transplantation, drugs for the treatment of fatty liver, drugs for the treatment of cirrhosis, drugs for the treatment of obesity.
- the one or more other drugs include a therapeutic drug for hypertension, a drug for treating diabetes, a drug for treating atherosclerosis, a drug for treating chronic glomerulonephritis, and a drug for treating chronic pyelonephritis , drugs for the treatment of nephrotic syndrome, drugs for the treatment of renal insufficiency, drugs for the treatment of uremia, drugs for the treatment of kidney transplant
- Item 16 The method according to Item 15, wherein the other drug comprises: a hypolipidemic drug, an antiplatelet drug, a blood pressure lowering drug, a dilated vascular drug, a hypoglycemic drug, an anticoagulant drug, a thrombolytic drug, a liver protection drug, and an antibiotic Arrhythmia drugs, cardiotonic drugs, diuretic drugs, anti-infective drugs, antiviral drugs, immunomodulatory drugs, inflammatory regulating drugs, anti-tumor drugs, hormone drugs, thyroxine.
- the other drug comprises: a hypolipidemic drug, an antiplatelet drug, a blood pressure lowering drug, a dilated vascular drug, a hypoglycemic drug, an anticoagulant drug, a thrombolytic drug, a liver protection drug, and an antibiotic Arrhythmia drugs, cardiotonic drugs, diuretic drugs, anti-infective drugs, antiviral drugs, immunomodulatory drugs, inflammatory regulating drugs, anti-tumor drugs, hormone
- Item 17 The method of Item 16, wherein the drug comprises a hypolipidemic drug: a statin; a fibrate; a niacin; a cholestyramine; clofibrate; an unsaturated fatty acid such as Yishouning, Xuezhiping and Xinmai; Sodium diester; antiplatelet drugs: aspirin; dipyridamole; clopidogrel; cilostazol; dilated vascular drugs: hydralazine; nitroglycerin and heartache; sodium nitroprusside; alpha nitrate receptor blocker such as peptazole Oxazine; alpha receptor blocker such as phentolamine; beta pull receptor stimulant such as salbutamol; captopril, enalapril; heart pain, thiazolone; lysine, long pressure Prostaglandin, atrial natriuretic peptide; thrombolytic drugs: urokinase
- any one of items 1-17, wherein the plasminogen and the sequence 2, 6, 8, 10 Or 12 has at least 75%, 80%, 85%, 90%, 95%, 96%, 97%, 98% or 99% sequence identity and still has plasminogen activity.
- the plasminogen is a protein comprising a plasminogen active fragment and still having plasminogen activity.
- plasminogen is selected from the group consisting of Glu-plasminogen, Lys-plasminogen, small plasminogen, microplasminogen, and delta-fiber Lysogens or their variants that retain plasminogen activity.
- plasminogen is a natural or synthetic human plasminogen, or a variant or fragment thereof that still retains plasminogen activity.
- plasminogen is a human plasminogen ortholog from a primate or a rodent or a plasminogen-retaining activity thereof Body or fragment.
- the invention relates to: Item 29.
- the invention relates to: Item 30.
- a pharmaceutical composition comprising a pharmaceutically acceptable carrier and plasminogen for use in the method of any of items 1-28.
- the invention in another aspect, relates to: Item 31.
- a prophylactic or therapeutic kit comprising: (i) plasminogen for use in the method of any of items 1-28 and (ii) Means for delivering the plasminogen to the subject.
- kit of item 31 wherein the member is a syringe or vial.
- kit of claim 31 or 32 further comprising a label or instructions for use, the label or instruction manual indicating administration of the plasminogen to the subject to perform any of items 1-28 Method.
- the invention relates to: Item 34.
- An article of manufacture comprising:
- a plasminogen or a pharmaceutical composition comprising plasminogen comprising the method of any one of clauses 1 to 28, wherein the label indicates administration of the plasminogen or composition
- the subject is the method of any of clauses 1-28.
- kit or the article of item 34 of any of clauses 31-33 further comprising one or more additional members or containers containing other drugs.
- Item 36 The kit or article of item 35, wherein the other drug is selected from the group consisting of a hypolipidemic drug, an antiplatelet drug, a blood pressure lowering drug, a dilated vascular drug, a hypoglycemic drug, an anticoagulant drug, a thrombolytic drug, Hepatoprotective drugs, antiarrhythmic drugs, cardiotonic drugs, diuretic drugs, anti-infective drugs, antiviral drugs, immunomodulatory drugs, inflammatory regulating drugs, anti-tumor drugs, hormone drugs, thyroxine.
- the other drug is selected from the group consisting of a hypolipidemic drug, an antiplatelet drug, a blood pressure lowering drug, a dilated vascular drug, a hypoglycemic drug, an anticoagulant drug, a thrombolytic drug, Hepatoprotective drugs, antiarrhythmic drugs, cardiotonic drugs, diuretic drugs, anti-infective drugs, antiviral drugs, immunomodulatory drugs, inflammatory regulating drugs
- the invention also relates to the use of plasminogen for carrying out the method of any of items 1-28.
- the invention further relates to the use of plasminogen for the preparation of a medicament, a pharmaceutical composition, an article, a kit for use in the method of any of items 1-28.
- the invention also relates to the prevention and/or treatment of disorders of fat metabolism and related disorders in a subject.
- the invention relates to a method of preventing and/or treating a disorder of fat metabolism and a related disorder thereof, comprising administering to a subject a prophylactically and/or therapeutically effective amount of plasminogen, wherein said subject is susceptible Suffering from fat metabolism disorder, suffering from fat metabolism disorder or suffering from other diseases accompanied by disorders of fat metabolism.
- the invention also relates to the use of plasminogen for the prevention and/or treatment of disorders of fat metabolism and related disorders in a subject.
- the invention further relates to the use of plasminogen for the preparation of a medicament, pharmaceutical composition, preparation, kit for the prevention and/or treatment of a disorder of fat metabolism and a related disorder in a subject.
- the present invention relates to plasminogen for preventing and/or treating a disorder of fat metabolism and a related condition thereof in a subject.
- the present invention also relates to a plasminogen-containing drug, pharmaceutical composition, preparation, kit for use in preventing and/or treating a disorder of fat metabolism and a related condition thereof.
- the disorder of fat metabolism is an endocrine disorder, a glucose metabolism disease, a liver disease, a kidney disease, a cardiovascular disease, an intestinal disease, a thyroid disease, a gallbladder or A disorder of fat metabolism caused by or associated with biliary tract disease, obesity, alcohol consumption, or drug treatment.
- the disorder of fat metabolism is hypertension, diabetes, chronic hepatitis, cirrhosis, kidney damage, chronic glomerulonephritis, chronic pyelonephritis, nephrotic syndrome, renal insufficiency, kidney transplantation, uremia, A disorder of fat metabolism caused by or associated with hypothyroidism, obstructive cholecystitis, obstructive cholangitis, drug or hormonal therapy.
- the disorder of fat metabolism is hyperlipidemia, hyperlipoproteinemia, fatty liver, atherosclerosis, obesity, organ fat deposition.
- the atherosclerosis comprises aortic atherosclerosis, coronary atherosclerosis, cerebral atherosclerosis, renal atherosclerosis, hepatic atherosclerosis, mesenteric atherosclerosis Lower extremity atherosclerosis.
- the present invention relates to a method of preventing and/or reducing abnormal deposition of fat in a body tissue of a subject, comprising administering to the subject an effective amount of plasminogen.
- the invention also relates to the use of plasminogen for preventing and/or reducing abnormal deposition of fat in a body tissue organ of a subject.
- the invention further relates to the use of plasminogen for the preparation of a medicament, a pharmaceutical composition, an article, a kit for preventing and/or reducing abnormal deposition of fat in a body tissue of a subject.
- the present invention relates to plasminogen for preventing and/or reducing abnormal deposition of fat in a body tissue of a subject.
- the present invention also relates to a medicament, a pharmaceutical composition, an article, a kit comprising plasminogen for preventing and/or reducing abnormal deposition of fat in a body tissue of a subject.
- the present invention relates to a method of preventing and/or treating a condition caused by abnormal deposition of fat in a body tissue organ of a subject, comprising administering to the subject an effective amount of plasminogen.
- the invention further relates to the use of plasminogen for preventing and/or treating a condition caused by abnormal deposition of fat in a body tissue or organ of a subject.
- the invention further relates to the use of plasminogen for the preparation of a medicament, a pharmaceutical composition, an article, a kit for the prevention and/or treatment of a condition in which fat in a subject is abnormally deposited in tissues and organs of the body.
- the present invention relates to a plasminogen-containing drug, pharmaceutical composition, preparation, kit for preventing and/or treating a condition caused by abnormal deposition of fat in a body tissue of a subject.
- the abnormal deposition of the fat in the body tissue refers to the abnormal deposition of fat in the blood, subcutaneous tissue, blood vessel walls, internal organs.
- the disorder caused by abnormal deposition of fat in body tissues and organs includes obesity, hyperlipidemia, hyperlipoproteinemia, fatty liver, atherosclerosis, lipid heart damage, lipidity Kidney damage, lipid islet damage.
- the present invention relates to a method of preventing and/or treating a condition caused by a disorder of fat metabolism in a subject, comprising administering to the subject an effective amount of plasminogen.
- the invention further relates to the use of plasminogen for the prevention and/or treatment of a condition caused by a disorder of fat metabolism in a subject.
- the invention further relates to the use of plasminogen for the preparation of a medicament, a pharmaceutical composition, an article, a kit for the prevention and/or treatment of a disorder caused by a disorder of fat metabolism in a subject.
- the present invention relates to plasminogen for preventing and/or treating a disorder caused by a disorder of fat metabolism in a subject.
- the present invention also relates to a plasminogen-containing drug, pharmaceutical composition, preparation, kit for preventing and/or treating a disorder caused by a disorder of fat metabolism in a subject.
- the condition comprises obesity, hyperlipidemia, hyperlipoproteinemia, fatty liver, atherosclerosis, lipid heart tissue damage, lipid renal injury.
- the present invention relates to a method of treating a disease in a subject by reducing fat abnormal deposition comprising administering to the subject an effective amount of plasminogen.
- the invention also relates to the use of plasminogen for treating diseases in a subject by reducing fat abnormal deposition.
- the invention further relates to the use of plasminogen for the preparation of a medicament, pharmaceutical composition, preparation, kit for treating a disease in a subject by reducing fat abnormal deposition.
- the present invention also relates to plasminogen for treating a disease in a subject by reducing fat abnormal deposition.
- the present invention also relates to a plasminogen-containing drug, pharmaceutical composition, preparation, kit for treating a disease in a subject by reducing fat abnormal deposition.
- the disease comprises atherosclerosis, coronary heart disease, angina pectoris, myocardial infarction, arrhythmia, fatty liver, cirrhosis, cerebral ischemia, cerebral infarction, renal insufficiency, nephrotic syndrome, renal insufficiency Obesity.
- the present invention relates to a method of preventing and/or treating lipid damage in a tissue of a subject comprising administering to the subject an effective amount of plasminogen.
- the invention further relates to the use of plasminogen for the prevention and/or treatment of lipid damage in tissues and organs of a subject.
- the invention further relates to the use of plasminogen for the preparation of a medicament, pharmaceutical composition, preparation, kit for the prevention and/or treatment of lipid damage in tissues and organs of a subject.
- the present invention relates to plasminogen for preventing and/or treating lipid damage in tissues and organs of a subject.
- the present invention also relates to a plasminogen-containing drug, pharmaceutical composition, preparation, kit for preventing and/or treating lipid damage in tissues and organs of a subject.
- the tissue organ comprises an arterial wall, a heart, a liver, a kidney, a pancreas.
- the invention relates to a method of improving hyperlipidemia in a subject comprising administering to the subject an effective amount of plasminogen.
- the invention also relates to the use of plasminogen for improving hyperlipidemia in a subject.
- the invention further relates to the use of plasminogen for the preparation of a medicament, a pharmaceutical composition, an article, a kit for improving hyperlipidemia in a subject.
- the present invention also relates to plasminogen for improving hyperlipidemia in a subject.
- the present invention also relates to a medicament, a pharmaceutical composition, an article, a kit comprising plasminogen for improving hyperlipidemia in a subject.
- the hyperlipidemia is selected from one or more of the group consisting of hypercholesterolemia, hypertriglyceridemia, mixed hyperlipidemia, and low high density lipoproteinemia.
- the invention relates to a method of reducing the risk of atherosclerosis in a subject comprising administering to the subject an effective amount of plasminogen.
- the invention also relates to the use of plasminogen for reducing the risk of atherosclerosis in a subject.
- the invention further relates to the use of plasminogen in the manufacture of a medicament, pharmaceutical composition, article, kit for reducing the risk of atherosclerosis in a subject.
- the present invention also relates to plasminogen for reducing the risk of atherosclerosis in a subject.
- the invention also relates to a medicament, pharmaceutical composition, preparation, kit comprising plasminogen for reducing the risk of atherosclerosis in a subject.
- the subject has hypertension, obesity, diabetes, chronic hepatitis, cirrhosis, kidney injury, chronic glomerulonephritis, chronic pyelonephritis, nephrotic syndrome, renal insufficiency, kidney transplantation , uremia, hypothyroidism, obstructive cholecystitis or obstructive cholangitis, or the subject taking a drug or hormone that affects fat metabolism.
- the plasminogen reduces the risk of atherosclerosis in a subject by one or more of the following: lowering total cholesterol levels in the blood, triglyceride levels, low density lipoprotein levels, Increase blood HDL levels.
- the invention relates to a method of treating a disease by ameliorating hyperlipidemia in a subject comprising administering to the subject an effective amount of plasminogen.
- the invention also relates to the use of plasminogen for the treatment of diseases by improving hyperlipidemia in a subject.
- the invention further relates to the use of plasminogen for the preparation of a medicament, pharmaceutical composition, preparation, kit for the treatment of a disease by improving hyperlipidemia in a subject.
- the present invention also relates to plasminogen for treating diseases by improving hyperlipidemia in a subject.
- the present invention also relates to a medicament, a pharmaceutical composition, an article, a kit comprising plasminogen for treating a disease by improving hyperlipidemia in a subject.
- the condition comprises diabetes, hypertension, atherosclerosis, coronary heart disease, angina pectoris, myocardial infarction, arrhythmia, chronic hepatitis, fatty liver, cirrhosis, brain Insufficient blood supply, cerebral ischemia, cerebral infarction, chronic nephritis, chronic pyelonephritis, renal insufficiency, nephrotic syndrome, uremia, obesity.
- the present invention relates to a method of preventing and/or treating a hyperlipidemia-related disorder in a subject comprising administering to the subject an effective amount of plasminogen.
- the invention also relates to the use of plasminogen for the prevention and/or treatment of a hyperlipidemia-related disorder in a subject.
- the invention further relates to the use of plasminogen for the preparation of a medicament, pharmaceutical composition, preparation, kit for the prevention and/or treatment of a hyperlipidemic disorder in a subject.
- the present invention also relates to plasminogen for preventing and/or treating a hyperlipidemia-related disorder in a subject.
- the present invention also relates to a plasminogen-containing drug, pharmaceutical composition, preparation, kit for use in preventing and/or treating a hyperlipidemia-related disorder in a subject.
- the condition comprises diabetes, hypertension, atherosclerosis, coronary heart disease, angina pectoris, myocardial infarction, arrhythmia, chronic hepatitis, fatty liver, cirrhosis, cerebral insufficiency, cerebral ischemia, cerebral infarction Chronic nephritis, chronic pyelonephritis, renal insufficiency, nephrotic syndrome, uremia, obesity.
- the plasminogen can be administered in combination with one or more other drugs or methods of treatment.
- the one or more other drugs include a therapeutic drug for hypertension, a drug for treating diabetes, a drug for treating atherosclerosis, a drug for treating chronic glomerulonephritis, a drug for treating chronic pyelonephritis, and a combination of nephropathy Drugs for treatment, drugs for treatment of renal insufficiency, drugs for uremia treatment, drugs for kidney transplantation, drugs for treatment of fatty liver, drugs for treatment of liver cirrhosis, drugs for treatment of obesity.
- the other drug comprises: a hypolipidemic drug, an antiplatelet drug, a blood pressure lowering drug, a dilated vascular drug, a hypoglycemic drug, an anticoagulant drug, a thrombolytic drug, a hepatoprotective drug, an antiarrhythmic drug, Cardiotonic drugs, diuretic drugs, anti-infective drugs, antiviral drugs, immunomodulatory drugs, inflammatory regulating drugs, anti-tumor drugs, hormone drugs, thyroxine.
- the medicament comprises a hypolipidemic drug: a statin; a fibrate; a niacin; a cholestyramine; clofibrate; an unsaturated fatty acid such as erosin, a blood lipid, and a heart pulse; alginic acid Sodium diester; antiplatelet drugs: aspirin; dipyridamole; clopidogrel; cilostazol; dilated vascular drugs: hydralazine; nitroglycerin and heartache; sodium nitroprusside; alpha nitrate receptor blockers such as prazosin ; alpha receptor blockers such as phentolamine; beta pull receptor stimulants such as salbutamol; captopril, enalapril; heart pain, thiazolone; lysine, long pressure , prostaglandins, atrial natriuretic peptide; thrombolytic drugs: urokinase and strept
- the plasminogen may have at least 75%, 80%, 85%, 90%, 95%, 96%, 97 with sequence 2, 6, 8, 10 or 12. %, 98% or 99% sequence identity and still have plasminogen activity.
- the plasminogen is added, deleted, and/or substituted on the basis of sequence 2, 6, 8, 10, or 12, 1-100, 1-90, 1-80, 1-70 , 1-60, 1-50, 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10, 1-5, 1-4, 1 -3, 1-2, 1 amino acid, and still a protein with plasminogen activity.
- the plasminogen is a protein comprising a plasminogen active fragment and still having plasminogen activity.
- the plasminogen is selected from the group consisting of Glu-plasminogen, Lys-plasminogen, small plasminogen, microplasminogen, delta-plasminogen, or their retention A variant of plasminogen activity.
- the plasminogen is a native or synthetic human plasminogen, or a variant or fragment thereof that still retains plasminogen activity.
- the plasminogen is a human plasminogen ortholog from a primate or a rodent or a variant or fragment thereof that still retains plasminogen activity.
- the amino acid of plasminogen is as shown in sequence 2, 6, 8, 10 or 12.
- the plasminogen is human natural plasminogen.
- the subject is a human. In some embodiments, the subject lacks or lacks plasminogen. In some embodiments, the deficiency or deficiency is innate, secondary, and/or local.
- the pharmaceutical composition comprises a pharmaceutically acceptable carrier and plasminogen for use in the foregoing methods.
- the kit can be a prophylactic or therapeutic kit comprising: (i) plasminogen for use in the foregoing methods and (ii) for delivery of the plasminogen to The subject of the subject.
- the member is a syringe or vial.
- the kit further comprises a label or instructions for use, the label or instructions for use indicating administration of the plasminogen to the subject to perform any of the methods described above.
- the article of manufacture comprises: a container comprising a label; and a pharmaceutical composition comprising (i) plasminogen or a plasminogen for use in the foregoing method, wherein the label indicates that the fiber is to be The lysogen or composition is administered to the subject to perform any of the methods described above.
- the kit or article further comprises an additional one or more components or containers containing other drugs.
- the other drug is selected from the group consisting of a hypolipidemic drug, an antiplatelet drug, a blood pressure lowering drug, a dilated vascular drug, a hypoglycemic drug, an anticoagulant drug, a thrombolytic drug, a hepatoprotective drug, and an anti-heart rhythm Abnormal drugs, cardiotonic drugs, diuretic drugs, anti-infective drugs, antiviral drugs, immunomodulatory drugs, inflammatory regulatory drugs, anti-tumor drugs, hormone drugs, thyroxine.
- the plasminogen is administered systemically or locally, preferably by the following route: intravenous, intramuscular, subcutaneous administration of plasminogen for treatment.
- the plasminogen is administered in combination with a suitable polypeptide carrier or stabilizer.
- the plasminogen is 0.0001-2000 mg/kg, 0.001-800 mg/kg, 0.01-600 mg/kg, 0.1-400 mg/kg, 1-200 mg/kg, 1-100 mg per day.
- the present invention expressly covers all combinations of the technical features between the embodiments of the present invention, and these combined technical solutions are explicitly disclosed in the present application, just as the above technical solutions have been separately and explicitly disclosed.
- the present invention also explicitly covers combinations between various embodiments and elements thereof, and the combined technical solutions are explicitly disclosed herein.
- fat metabolism disorder is also called “abnormal fat metabolism” and "fat metabolism disorder”, and is a general term for clinical or pathological manifestations caused by abnormal, disorder or disorder of fat metabolism.
- fat metabolism disorder “abnormal fat metabolism”, and “fat metabolic disorder” are used interchangeably.
- fat metabolism “lipid metabolism”, and “lipid metabolism” are used interchangeably.
- Fat metabolism disorder-related disorders is a general term for disorders associated with disorders of fat metabolism.
- the correlation may be related to etiology, pathogenesis, pathological relevance, clinical symptom correlation, and/or treatment principles.
- “Blood fat” is a general term for triglycerides, cholesterol and phospholipids.
- Lipoprotein is a spherical macromolecular complex composed of apolipoprotein and blood lipid. Because lipoproteins contain different components of cholesterol and triglycerides, and the density is different. Divided into 5 categories: chylomicrons (CM) very low density lipoprotein (VLDL) Medium Density Lipoprotein (IDL) Low Density Lipoprotein (LDL) High Density Lipoprotein (HDL). According to the level of lipid risk, the most common types of dyslipoproteinemia in clinical practice: hypercholesterolemia, hypertriglyceridemia, mixed hyperlipidemia, and low-density lipoproteinemia.
- Secondary dyslipidemia is found in diabetes, hypothyroidism, nephrotic syndrome, kidney transplantation, severe liver disease, obstructive biliary tract disease, obesity, alcohol consumption, drug treatment, such as estrogen therapy, etc., if secondary dyslipidemia can be ruled out Consider primary dyslipidemia.
- “Hyperlipidemia” refers to a pathological condition in which blood lipids such as cholesterol, triglyceride, phospholipids, and non-lipidated fatty acids are increased in plasma.
- “Hyperlipid-related disorder” refers to a condition associated with high blood lipids, etiology, pathogenesis, pathological manifestations, clinical symptoms, and/or treatment principles.
- the condition includes, but is not limited to, diabetes, hypertension, atherosclerosis, coronary heart disease, angina pectoris, myocardial infarction, arrhythmia, chronic hepatitis, fatty liver, cirrhosis, cerebral insufficiency, cerebral ischemia, cerebral infarction, chronic Nephritis, chronic pyelonephritis, renal insufficiency, nephrotic syndrome, uremia, obesity.
- hypolipidemia One or several lipid abnormalities in plasma are referred to as “hyperlipidemia”, “hyperlipemia” or “dyslipidemia” due to fat metabolism or abnormal function.
- lipids are insoluble or slightly soluble in water, they must bind to proteins to form lipoproteins to function in the blood circulation. Therefore, hyperlipidemia is often a reflection of "high-lipoproteinemia.”
- hyperlipidemia-related disorder of the present invention may also be referred to as “hyperlipidemic-related disorder” and “hyperlipoproteinemia-related disorder”.
- Fat liver refers to a lesion of excessive accumulation of fat in liver cells due to various reasons, which may be an independent disease or may be caused by other causes, such as obese fatty liver, alcoholic fatty liver, and rapid weight loss. Fatty liver, malnutrition fatty liver, diabetic fatty liver, drug-induced fatty liver and so on.
- the lipid droplets in the liver cells increase, causing the liver cells to be fatty degenerated, swollen, and the nucleus is squeezed off center.
- the metabolism of fat should be carried out in the mitochondria.
- the transport of fat to the extracellular cells mainly passes through the smooth endoplasmic reticulum.
- the accumulation of fat in the hepatocytes further aggravates the burden of mitochondria and endoplasmic reticulum and reduces its function, thereby affecting other nutrients and hormones. Metabolism of vitamins. Long-term degeneration of hepatocytes leads to arrhythmia and necrosis of hepatocytes, which in turn leads to liver fibrosis and cirrhosis.
- Atherosclerosis is a chronic, progressive arterial disease in which the fat deposited in the arteries partially or completely blocks blood flow.
- Atherosclerosis occurs when blocked by fat, fibrin, calcium, and cellular debris.
- Atherosclerosis is a gradual process.
- fat streaks are formed along the walls of the artery. These streaks cause fat and cholesterol deposits that attach to the originally smooth arterial intima, forming a nodule. These nodules then grow fibrotic scar tissue, resulting in calcium deposition.
- the deposited calcium gradually evolves into a chalky hard film (called an atheroma) that cannot be removed.
- This permanent film inside the artery blocks the normal expansion and contraction of the artery, slowing the blood flow velocity within the artery, which can easily form a blood clot that prevents or prevents blood from flowing through the artery.
- Atherosclerosis The exact cause of atherosclerosis has not yet been determined, but important pathogenic factors have been identified: hyperlipidemia, hypertension, a history of smoking, and a family history of atherosclerosis (previous illness before age 60) Or diabetes.
- Hyperlipidemia can promote the formation of fat streaks. Because hypertension exerts a certain constant force on the artery, it accelerates the process of arterial occlusion and hardening, thus increasing the prevalence of atherosclerosis.
- Smoking can cause arterial contractions and restrict blood flow, thus creating conditions for arterial occlusion. Diabetes can also contribute to the development of atherosclerosis, especially for very small arteries.
- Atherosclerosis As far as atherosclerosis is concerned, people do not feel any symptoms. The disease is only discovered when the artery connected to an important organ in the body is blocked. Symptoms caused by blocked arteries in the organ are more pronounced. For example, if the heart's blood supply artery is partially blocked, people may feel angina; but if it is completely blocked, it may lead to heart disease (heart tissue death from the blocked arteries). If atherosclerosis affects the brain arteries, people may feel dizziness, blurred vision and syncope, and may even cause a stroke (the brain tissue that is supplied by the blocked arteries dies, causing nerve damage, such as limbs controlled by dead brain tissue) ). Blockage of the arteries leading to the kidney may also lead to kidney failure. Blockage of blood vessels leading to the eye can lead to blindness. Arterial obstruction of the extremities may cause lesions in various limbs.
- Atherosclerosis is the main cause of coronary heart disease, cerebral infarction, and peripheral vascular disease.
- Lipid metabolism disorder is the basis of atherosclerosis, which is characterized by the involvement of the affected arterial lesions from the intima, usually the accumulation of lipids and complex carbohydrates, hemorrhage and thrombosis, and then fibrous tissue hyperplasia and calcium deposition, and The gradual metamorphosis and calcification of the middle layer of the artery leads to thickening and hardening of the arterial wall and narrowing of the vascular lumen.
- the lesion often involves the large and medium muscular arteries, and once developed enough to block the arterial lumen, the tissue or organ supplied by the artery will be ischemic or necrotic.
- Atherosclerosis is a systemic disease in which an organ angiogenic atherosclerotic lesion means that the same lesion may already exist in the blood vessels elsewhere; likewise, a vascular event in one organ means that a vascular event occurs elsewhere. The danger increases.
- Plasmin is a key component of the plasminogen activation system (PA system). It is a broad-spectrum protease that hydrolyzes several components of the extracellular matrix (ECM), including fibrin, gelatin, fibronectin, laminin, and proteoglycans [9] . In addition, plasmin activates some metalloproteinase precursors (pro-MMPs) to form active metalloproteinases (MMPs). Therefore, plasmin is considered to be an important upstream regulator of extracellular proteolysis [10,11] .
- ECM extracellular matrix
- MMPs active metalloproteinases
- Plasmin is formed by proteolytic plasminogen by two physiological PAs: tissue plasminogen activator (tPA) or urokinase-type plasminogen activator (uPA). Due to the relatively high levels of plasminogen in plasma and other body fluids, it has been traditionally believed that the regulation of the PA system is primarily achieved by the synthesis and activity levels of PAs. The synthesis of components of the PA system is tightly regulated by various factors such as hormones, growth factors and cytokines. In addition, specific physiological inhibitors of plasmin and PAs are also present. The main inhibitor of plasmin is ⁇ 2-antiplasmin.
- PAI-1 plasminogen activator inhibitor-1
- PAI-2 lysogen activator inhibitor-2
- Some cell surface has direct hydrolysis activity of uPA-specific cell surface receptors (uPAR) [12,13] .
- Plasminogen is a single-chain glycoprotein consisting of 791 amino acids with a molecular weight of approximately 92 kDa [14,15] . Plasminogen is mainly synthesized in the liver and is abundantly present in the extracellular fluid. The plasma plasminogen content is approximately 2 ⁇ M. Therefore, plasminogen is a huge potential source of proteolytic activity in tissues and body fluids [16,17] . Plasminogen exists in two molecular forms: glutamate-plasminogen and Lys-plasminogen. The naturally secreted and uncleaved forms of plasminogen have an amino terminal (N-terminal) glutamate and are therefore referred to as glutamate-plasminogen.
- plasminogen in the presence of plasmin, glutamate-plasminogen is hydrolyzed to Lys-Lysinogen at Lys76-Lys77. Compared to glutamate-plasminogen, lysine-plasminogen has a higher affinity for fibrin and can be activated by PAs at a higher rate.
- the Arg560-Val561 peptide bond of these two forms of plasminogen can be cleaved by uPA or tPA, resulting in the formation of a disulfide-linked double-chain protease plasmin [18] .
- the amino terminal portion of plasminogen contains five homologous tricycles, the so-called kringles, which contain a protease domain.
- Some kringles contain a lysine binding site that mediates the specific interaction of plasminogen with fibrin and its inhibitor ⁇ 2-AP.
- the main substrate for plasmin is fibrin, which is the key to preventing pathological thrombosis [19] .
- Plasmin also has substrate specificity for several components of ECM, including laminin, fibronectin, proteoglycans and gelatin, suggesting that plasmin also plays an important role in ECM reconstruction [ 15, 20, 21] .
- plasmin can also degrade other components of ECM, including MMP-1, MMP-2, MMP-3 and MMP-9, by converting certain protease precursors into active proteases. Therefore, it has been suggested that plasmin may be an important upstream regulator of extracellular proteolysis [22] .
- plasmin has the ability to activate certain potential forms of growth factors [23-25] . In vitro, plasmin also hydrolyzes components of the complement system and releases chemotactic complement fragments.
- Plasmid is a very important enzyme found in the blood that hydrolyzes fibrin clots into fibrin degradation products and D-dimers.
- Plasinogen is a zymogen form of plasmin, which is composed of 810 amino acids, based on the sequence in swiss prot, based on the native human plasminogen amino acid sequence (sequence 4) containing the signal peptide. 90 kD, a glycoprotein synthesized mainly in the liver and capable of circulating in the blood, and the cDNA sequence encoding the amino acid sequence is shown in SEQ ID NO:3.
- Full-length plasminogen contains seven domains: a serine protease domain at the C-terminus, a Pan Apple (PAp) domain at the N-terminus, and five Kringle domains (Kringle 1-5).
- the signal peptide includes the residue Met1-Gly19
- PAp includes the residue Glu20-Val98
- Kringle1 includes the residue Cys103-Cys181
- Kringle2 includes the residue Glu184-Cys262
- Kringle3 includes the residue Cys275-Cys352
- Kringle4 Including the residue Cys377-Cys454
- Kringle5 includes the residue Cys481-Cys560.
- the serine protease domain includes the residues Val581-Arg804.
- Glu-plasminogen is a natural full-length plasminogen consisting of 791 amino acids (not containing a 19 amino acid signal peptide), and the cDNA sequence encoding the sequence is shown in SEQ ID NO: 1, and its amino acid sequence is sequence 2. Shown. In vivo, there is also a Lys-plasminogen which is hydrolyzed from amino acids 76-77 of Glu-plasminogen, and as shown in SEQ ID NO: 6, the cDNA sequence encoding the amino acid sequence is as shown in SEQ ID NO: 5 Shown.
- Delta-plasminogen is a fragment of full-length plasminogen deleted from the Kringle2-Kringle5 structure and contains only the Kringle1 and serine protease domains [26,27] .
- the delta-plasminogen has been reported in the literature.
- the amino acid sequence (SEQ ID NO: 8) [27] the cDNA sequence encoding the amino acid sequence is shown in Sequence 7.
- Mini-plasminogen consists of Kringle5 and a serine protease domain, which has been reported in the literature to include the residue Val443-Asn791 (starting amino acid with a Glu residue of Glu-plasminogen sequence not containing a signal peptide) [28] , the amino acid sequence thereof is shown in SEQ ID NO: 10, and the cDNA sequence encoding the amino acid sequence is shown in SEQ ID NO: 9.
- Micro-plasminogen contains only the serine protease domain, and its amino acid sequence has been reported to include the residue Ala543-Asn791 (from the Glu residue of the Glu-plasminogen sequence containing no signal peptide).
- Plasin of the present invention is used interchangeably with “fibrinolytic enzyme” and “fibrinolytic enzyme”, and has the same meaning; “plasminogen” and “plasminogen”, “fibrinogenase” "Interchangeable use, meaning the same.
- the term "deficiency" of plasminogen means that the content or activity of plasminogen in the subject is lower than that of a normal person, and is low enough to affect the normal physiological function of the subject;
- the meaning of "deficient" of plasminogen is that the content or activity of plasminogen in the subject is significantly lower than that of normal people, and even the activity or expression is minimal, and only by external supply can maintain normal physiological functions.
- plasminogen adopts a closed inactive conformation, but when bound to the surface of a thrombus or cell, it is converted to openness mediated by plasminogen activator (PA).
- PA plasminogen activator
- Conformational active plasmin The active plasmin further hydrolyzes the fibrin clot into a fibrin degradation product and a D-dimer, thereby dissolving the thrombus.
- the PAp domain of plasminogen contains an important determinant that maintains plasminogen in an inactive blocking conformation, while the KR domain is capable of binding to lysine residues present on the receptor and substrate.
- plasminogen activators include tissue plasminogen activator (tPA), urokinase plasminogen activator (uPA), kallikrein, and coagulation factor XII (Hag Mann factor) and so on.
- a "plasminogen active fragment” refers to an active fragment that binds to a target sequence in a substrate and exerts a proteolytic function in a plasminogen protein.
- the technical solution of the present invention relating to plasminogen covers the technical solution of replacing plasminogen with a plasminogen active fragment.
- Plasmin The original active fragment is a protein comprising a serine protease domain of plasminogen.
- the plasminogen active fragment of the present invention comprises the sequence 14, and the sequence 14 has at least 80%, 90%, 95%, 96%, A protein of 97%, 98%, 99% homologous amino acid sequence.
- the plasminogen of the present invention comprises a protein comprising the plasminogen active fragment and still retaining the plasminogen activity.
- blood plasminogen and its activity assays include: detection of tissue plasminogen activator activity (t-PAA), detection of plasma tissue plasminogen activator antigen (t-PAAg), Detection of plasma tissue plasminogen activity (plgA), detection of plasma tissue plasminogen antigen (plgAg), detection of plasma tissue plasminogen activator inhibitor activity, inhibition of plasma tissue plasminogen activator Detection of antigens, plasma plasmin-anti-plasmin complex assay (PAP).
- t-PAA tissue plasminogen activator activity
- t-PAAg detection of plasma tissue plasminogen activator antigen
- plgA Detection of plasma tissue plasminogen activity
- plgAg detection of plasma tissue plasminogen antigen
- PAP plasma plasmin-anti-plasmin complex assay
- the most commonly used detection method is the chromogenic substrate method: adding streptokinase (SK) and chromogenic substrate to the plasma to be tested, and the PLG in the tested plasma is converted into PLM under the action of SK, and the latter acts on The chromogenic substrate is then measured spectrophotometrically and the increase in absorbance is directly proportional to the plasminogen activity.
- plasminogen activity in blood can also be measured by immunochemical method, gel electrophoresis, immunoturbidimetry, or radioimmunoassay.
- ortholog or ortholog refers to homologs between different species, including both protein homologs and DNA homologs, also known as orthologs, orthologs. It specifically refers to a protein or gene that has evolved from the same ancestral gene in different species.
- the plasminogen of the present invention includes human natural plasminogen, and also includes plasminogen orthologs or orthologs of plasminogen activity derived from different species.
- Constant substitution variant refers to a change in one of the given amino acid residues without altering the overall conformation and function of the protein or enzyme, including but not limited to similar properties (eg, acidic, basic, hydrophobic, etc.)
- the amino acid replaces the amino acid in the amino acid sequence of the parent protein.
- Amino acids having similar properties are well known. For example, arginine, histidine, and lysine are hydrophilic basic amino acids and are interchangeable.
- isoleucine is a hydrophobic amino acid that can be replaced by leucine, methionine or valine. Therefore, the similarity of two protein or amino acid sequences of similar function may be different.
- Constant substitution variants also includes determining polypeptides or enzymes having more than 60% amino acid identity by BLAST or FASTA algorithm. If it is more than 75%, preferably more than 85%, or even more than 90%. Optimal and have the same or substantially similar properties or functions as the native or parent protein or enzyme.
- Isolated plasminogen refers to a plasminogen protein that is isolated and/or recovered from its natural environment.
- the plasminogen will purify (1) to a purity greater than 90%, greater than 95%, or greater than 98% by weight, as determined by the Lowry method, eg, over 99% (by weight), (2) to a degree sufficient to obtain at least 15 residues of the N-terminal or internal amino acid sequence by using a rotating cup sequence analyzer, or (3) to homogeneity, which is by use Coomassie blue or silver staining was determined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) under reducing or non-reducing conditions.
- Isolated plasminogen also includes plasminogen prepared from recombinant cells by bioengineering techniques and isolated by at least one purification step.
- polypeptide peptide
- protein protein
- fusion proteins including, but not limited to, fusion proteins having a heterologous amino acid sequence, fusions having heterologous and homologous leader sequences (with or without an N-terminal methionine residue);
- percent amino acid sequence identity with respect to a reference polypeptide sequence is defined as the introduction of a gap as necessary to achieve maximum percent sequence identity, and without any conservative substitution being considered as part of sequence identity, in the candidate sequence The percentage of amino acid residues that are identical in amino acid residues in the reference polypeptide sequence. Comparisons for the purpose of determining percent amino acid sequence identity can be achieved in a variety of ways within the skill of the art, for example using publicly available computer software such as BLAST, BLAST-2, ALIGN or Megalign (DNASTAR) software. Those skilled in the art will be able to determine appropriate parameters for aligning sequences, including any algorithms needed to achieve maximum contrast over the full length of the sequences being compared. However, for the purposes of the present invention, amino acid sequence identity percent values are generated using the sequence comparison computer program ALIGN-2.
- amino acid sequence identity of a given amino acid sequence A relative to a given amino acid sequence B (or may be expressed as having or comprising relative to, and, or for a given amino acid sequence)
- a given amino acid sequence A of a certain % amino acid sequence identity of B is calculated as follows:
- X is the number of amino acid residues scored by the sequence alignment program ALIGN-2 in the A and B alignments of the program, and wherein Y is the total number of amino acid residues in B.
- % amino acid sequence identity of A with respect to B may not be equal to the % amino acid sequence of B relative to A.
- All % amino acid sequence identity values used herein are obtained using the ALIGN-2 computer program as described in the previous paragraph, unless explicitly stated otherwise.
- the terms “treating” and “treating” refer to obtaining a desired pharmacological and/or physiological effect.
- the effect may be to completely or partially prevent the disease or its symptoms, and/or to partially or completely cure the disease and/or its symptoms, and includes: (a) preventing the disease from occurring in the subject, the subject may have The cause of the disease, but not yet diagnosed as having a disease; (b) inhibiting the disease, ie, retarding its formation; and (c) reducing the disease and/or its symptoms, ie causing the disease and/or its symptoms to subside.
- the terms "individual”, “subject” and “patient” are used interchangeably herein to refer to a mammal, including but not limited to a mouse (rat, mouse), a non-human primate, a human, a dog, a cat. Hoofed animals (such as horses, cattle, sheep, pigs, goats).
- “Therapeutically effective amount” or “effective amount” refers to an amount of plasminogen sufficient to effect such prevention and/or treatment of a disease when administered to a mammal or other subject to treat the disease.
- the “therapeutically effective amount” will vary depending on the plasminogen used, the severity of the disease and/or its symptoms of the subject to be treated, and the age, weight, and the like.
- Plasminogen can be isolated and purified from nature for further therapeutic use, or it can be synthesized by standard chemical peptide synthesis techniques. When the polypeptide is chemically synthesized, it can be synthesized in a liquid phase or a solid phase.
- Solid phase polypeptide synthesis SPPS
- Fmoc and Boc Various forms of SPPS, such as Fmoc and Boc, can be used to synthesize plasminogen.
- the attached solid phase free N-terminal amine is coupled to a single N-protected amino acid unit. This unit is then deprotected to reveal a new N-terminal amine that can be attached to other amino acids.
- the peptide remains immobilized on the solid phase and then cut off.
- the plasminogen of the present invention can be produced using standard recombinant methods.
- a nucleic acid encoding plasminogen is inserted into an expression vector operably linked to a regulatory sequence in an expression vector.
- Expression control sequences include, but are not limited to, promoters (eg, naturally associated or heterologous promoters), signal sequences, enhancer elements, and transcription termination sequences.
- Expression regulation can be a eukaryotic promoter system in a vector that is capable of transforming or transfecting eukaryotic host cells (eg, COS or CHO cells). Once the vector is incorporated into a suitable host, the host is maintained under conditions suitable for high level expression of the nucleotide sequence and collection and purification of plasminogen.
- Suitable expression vectors are typically replicated as an episome in the host organism or as an integral part of the host chromosomal DNA.
- expression vectors typically contain a selection marker (eg, ampicillin resistance, hygromycin resistance, tetracycline resistance, kanamycin resistance, or neomycin resistance) to facilitate transformation of the desired DNA sequence with foreign sources. Those cells are tested.
- a selection marker eg, ampicillin resistance, hygromycin resistance, tetracycline resistance, kanamycin resistance, or neomycin resistance
- Escherichia coli is an example of a prokaryotic host cell that can be used to clone a subject antibody-encoding polynucleotide.
- Other microbial hosts suitable for use include bacilli, such as Bacillus subtilis and other enterobacteriaceae, such as Salmonella, Serratia, and various Pseudomonas species. Genus (Pseudomonas) species.
- expression vectors can also be generated which will typically contain expression control sequences (e.g., origins of replication) that are compatible with the host cell.
- promoters such as the lactose promoter system, the tryptophan (trp) promoter system, the beta-lactamase promoter system, or the promoter system from phage lambda. Promoters typically control expression, optionally in the context of manipulating a gene sequence, and have a ribosome binding site sequence, etc., to initiate and complete transcription and translation.
- yeast can also be used for expression.
- Yeast e.g., S. cerevisiae
- Pichia are examples of suitable yeast host cells in which a suitable vector has expression control sequences (e.g., a promoter), an origin of replication, a termination sequence, and the like, as desired.
- a typical promoter comprises 3-phosphoglycerate kinase and other saccharolytic enzymes.
- Inducible yeast is initiated by a promoter specifically comprising an alcohol dehydrogenase, an isocytochrome C, and an enzyme responsible for the utilization of maltose and galactose.
- mammalian cells e.g., mammalian cells cultured in in vitro cell culture
- an anti-Tau antibody of the invention e.g., a polynucleotide encoding a subject anti-Tau antibody.
- Suitable mammalian host cells include CHO cell lines, various Cos cell lines, HeLa cells, myeloma cell lines, and transformed B cells or hybridomas. Used for this Expression vectors for these cells may contain expression control sequences such as origins of replication, promoters and enhancers (Queen et al, Immunol.
- RNA splice sites RNA splice sites, polyadenylation sites, and transcription terminator sequences.
- suitable expression control sequences are promoters derived from the white immunoglobulin gene, SV40, adenovirus, bovine papilloma virus, cytomegalovirus, and the like. See Co et al, J. Immunol. 148: 1149 (1992).
- the invention may be purified according to standard procedures in the art, including ammonium sulfate precipitation, affinity column, column chromatography, high performance liquid chromatography (HPLC), gel electrophoresis, and the like.
- Plasminogen is substantially pure, such as at least about 80% to 85% pure, at least about 85% to 90% pure, at least about 90% to 95% pure, or 98% to 99% pure. Or more pure, for example, free of contaminants, such as cellular debris, macromolecules other than the subject antibody, and the like.
- the jelly can be formed by mixing plasminogen of the desired purity with an optional pharmaceutical carrier, excipient, or stabilizer (Remington's Pharmaceutical Sciences, 16th Edition, Osol, A. ed. (1980)).
- the therapeutic formulation is prepared as a dry formulation or as an aqueous solution.
- Acceptable carriers, excipients, and stabilizers are non-toxic to the recipient at the dosages and concentrations employed, and include buffers such as phosphates, citrates and other organic acids; antioxidants including ascorbic acid and methionine; preservatives such as Octadecyldimethylbenzylammonium chloride; chlorinated hexane diamine; benzalkonium chloride, benzethonium chloride; phenol, butanol or benzyl alcohol; alkyl p-hydroxybenzoic acid Esters such as methyl or propyl p-hydroxybenzoate; catechol; resorcinol; cyclohexanol; 3-pentanol; m-cresol; low molecular weight polypeptide (less than about 10 residues) Protein such as serum albumin, gelatin or immunoglobulin; hydrophilic polymer such as polyvinylpyrrolidone; amino acids such as glycine, glutamine, asparagine, his
- the formulations of the invention may also contain more than one active compound as required for the particular condition being treated, preferably those having complementary activities and no side effects to each other.
- active compound for example, antihypertensive drugs, antiarrhythmic drugs, drugs for treating diabetes, and the like.
- the plasminogen of the present invention may be encapsulated in microcapsules prepared by, for example, coacervation techniques or interfacial polymerization, for example, may be placed in a glial drug delivery system (eg, liposomes, albumin microspheres, microemulsions, Nanoparticles and nanocapsules are placed in hydroxymethylcellulose or gel-microcapsules and poly-(methyl methacrylate) microcapsules in a macroemulsion.
- glial drug delivery system eg, liposomes, albumin microspheres, microemulsions, Nanoparticles and nanocapsules are placed in hydroxymethylcellulose or gel-microcapsules and poly-(methyl methacrylate) microcapsules in a macroemulsion.
- the plasminogen of the invention for in vivo administration must be sterile. This can be easily achieved by filtration through a sterile filter before or after lyophilization and reconstitution.
- the plasminogen of the present invention can prepare a sustained release preparation.
- sustained release formulations include solid hydrophobic polymeric semi-permeable matrices having a shape and containing glycoproteins, such as films or microcapsules.
- sustained release matrices include polyesters, hydrogels (e.g., poly(2-hydroxyethyl-methacrylate) (Langer et al, J. Biomed. Mater. Res., 15: 167-277 (1981); Langer, Chem .Tech., 12:98-105 (1982)) or poly(vinyl alcohol), polylactide (U.S.
- Patent 3,739,919, EP 58,481 L-glutamic acid and ⁇ -ethyl-L-glutamic acid Copolymer (Sidman, et al, Biopolymers 22: 547 (1983)), non-degradable ethylene-vinyl acetate (Langer, et al, supra), or degradable lactic acid-glycolic acid copolymer Such as Lupron DepotTM (injectable microspheres composed of lactic acid-glycolic acid copolymer and leuprolide acetate), and poly D-(-)-3-hydroxybutyric acid.
- Lupron DepotTM injectable microspheres composed of lactic acid-glycolic acid copolymer and leuprolide acetate
- poly D-(-)-3-hydroxybutyric acid poly D-(-)-3-hydroxybutyric acid.
- Ethylene-vinyl acetate and lactic acid-glycolic acid can release molecules for more than 100 days, while some hydrogels release proteins for a short time.
- a reasonable strategy for protein stabilization can be designed according to the relevant mechanism. For example, if agglomeration is found The mechanism is to form intermolecular SS bonds by thiodisulfide bond exchange, which can be modified by thiol residues, lyophilized from acidic solution, and controlled. Degree, using appropriate additives, and developing specific polymer matrix compositions stable.
- compositions of this invention may be effected intramuscularly in different ways, such as by intravenous, intraperitoneal, subcutaneous, intracranial, intrathecal, intraarterial (e.g., via the carotid artery).
- Preparations for parenteral administration include sterile aqueous or nonaqueous solutions, suspensions and emulsions.
- non-aqueous solvents are propylene glycol, polyethylene glycol, vegetable oils such as olive oil, and injectable organic esters such as ethyl oleate.
- Aqueous carriers include water, alcoholic/aqueous solutions, emulsions or suspensions, including Brine and buffer media.
- Parenteral vehicles include sodium chloride solution, Ringer's dextrose, dextrose and sodium chloride, or fixed oils.
- Intravenous vehicles contain liquid and nutritional supplements, electrolyte supplements, and the like. Preservatives and other additives may also be present such as, for example, antimicrobials, antioxidants, chelating agents, and inert gases, and the like.
- the medical staff will determine the dosage regimen based on various clinical factors. As is well known in the medical arts, the dosage of any patient depends on a variety of factors, including the patient's size, body surface area, age, specific compound to be administered, sex, number and route of administration, overall health, and other medications administered simultaneously. .
- the pharmaceutical composition of the present invention comprising plasminogen may be, for example, in the range of about 0.0001 to 2000 mg/kg per day, or about 0.001 to 500 mg/kg (e.g., 0.02 mg/kg, 0.25 mg/kg, 0.5 mg/kg, 0.75 mg/kg, 10 mg/kg, 50 mg/kg, etc.) Subject weight.
- the dose can be 1 mg/kg body weight or 50 mg/kg body weight or in the range of 1-50 mg/kg, or at least 1 mg/kg. Dosages above or below this exemplary range are also contemplated, particularly in view of the above factors. Intermediate doses in the above ranges are also included in the scope of the present invention.
- the subject can administer such doses daily, every other day, every week, or according to any other schedule determined by empirical analysis.
- An exemplary dosage schedule includes 1-10 mg/kg for several days. The therapeutic effect and safety need to be evaluated in real time during the administration of the drug of the present invention.
- One embodiment of the invention relates to an article or kit comprising a plasminogen or plasmin of the invention useful for treating a cardiovascular disease caused by diabetes and a related disorder thereof.
- the article preferably includes a container, label or package insert. Suitable containers are bottles, vials, syringes, and the like.
- the container can be made of various materials such as glass or plastic.
- the container contains a composition that is effective to treat a disease or condition of the invention and has a sterile access port (eg, the container can be an intravenous solution or vial containing a stopper that can be penetrated by a hypodermic needle) of).
- At least one active agent in the composition is plasminogen/plasmin.
- the label on or attached to the container indicates that the composition is used to treat the cardiovascular disease caused by diabetes and its related conditions of the present invention.
- the article of manufacture may further comprise a second container comprising a pharmaceutically acceptable buffer, such as phosphate buffered saline, Ringer's solution, and dextrose solution. It may further comprise other materials required from a commercial and user standpoint, including other buffers, diluents, filters, needles and syringes.
- the article comprises a package insert with instructions for use, including, for example, a user instructing the composition to administer the plasminogen composition and other drugs to treat the accompanying disease.
- Figure 1 shows the results of Sirius red staining of 3% cholesterol hyperlipidemia model mice after 30 days of plasminogen administration.
- A is a blank control group
- B is a vehicle control group
- C is a plasminogen group
- D is a quantitative analysis result.
- the results showed that the collagen deposition (arrow mark) in the plasminogen group was significantly less than that in the vehicle control group, and the statistical difference was significant; the fibrosis in the plasminogen group was basically restored to normal levels. This indicates that plasminogen can effectively reduce renal fibrosis in 3% cholesterol hyperlipidemia model mice.
- FIG. 2 shows the results of kidney oil red O in mice with 3% cholesterol hyperlipidemia model 30 days after administration of plasminogen.
- A is a blank control group
- B is a vehicle control group
- C is a plasminogen group
- D is a quantitative analysis result.
- the results showed that the renal fat deposition (arrow mark) in the plasminogen group was significantly less than that in the vehicle control group, and the quantitative analysis was statistically significant.
- the lipid deposition level in the plasminogen group was compared with the blank control group. The mice are similar. This indicates that plasminogen can reduce the deposition of fat in the kidney of hyperlipidemia model mice, thereby reducing kidney damage caused by fat deposition.
- Figure 3 shows the results of liver oil red O staining after administration of plasminogen for 30 days in a 16-week hyperlipidemia model mouse.
- A is the control vehicle PBS control group
- B is the plasminogen group
- C is the quantitative analysis result.
- the results showed that the liver fat deposition in the plasminogen group was significantly less than that in the vehicle control group, and the statistical analysis was statistically significant (* indicates P ⁇ 0.05). This indicates that plasminogen can improve the deposition of fat in the liver of hyperlipidemia model mice.
- Figure 4 Results of aortic sinus oil red O staining after administration of plasminogen for 30 days in a 16-week hyperlipidemia model mouse.
- a and C are the control group for the vehicle PBS
- B and D are for the plasminogen group
- E is the quantitative analysis result.
- the results showed that the aortic sinus fat deposition in the plasminogen group was significantly less than that in the vehicle control group, and the statistical difference was significant (* indicates P ⁇ 0.05). This indicates that plasminogen can improve the deposition of fat in the aortic sinus of hyperlipidemia model mice.
- FIG. 5 Representative images of HE staining of aortic sinus after administration of plasminogen for 30 weeks in a 16-week hyperlipidemia model mouse.
- a and C were given to the vehicle PBS control group, and B and D were given to the plasminogen group.
- the results showed that foam cell deposition (marked by the arrow) was observed in the aortic wall of the vehicle control group, and plaque deposition was severe; only mild foam cell deposition was observed in the aortic wall of the plasminogen group, and under the intima No obvious atheroma deposits were found, and the aorta in the plasminogen group was less damaged. This indicates that plasminogen can ameliorate the damage caused by lipid deposition in the aortic sinus wall of mice with hyperlipidemia.
- FIG. 6 Immunofibrotic staining of cardiac fibrin after administration of plasminogen for 30 days in a 16-week hyperlipidemia model mouse.
- A is the control vehicle PBS control group
- B is the plasminogen group
- C is the quantitative analysis result.
- the results showed that the positive expression of cardiac fibrin in the plasminogen group was significantly less than that in the vehicle control group, and the statistical difference was significant (* indicates P ⁇ 0.05). This indicates that plasminogen can reduce heart damage caused by hyperlipidemia.
- FIG. 7 Representative images of cardiac IgM immunostaining 30 days after administration of plasminogen in a 16-week hyperlipidemia model mouse.
- A is the vehicle PBS control group and B is the plasminogen group.
- the results showed that the positive expression of IgM in the plasminogen group was significantly less than that in the vehicle PBS control group, indicating that plasminogen can alleviate the heart damage caused by hyperlipidemia.
- Figure 8 Representative pictures of Sirius red staining after 30 days of plasminogen administration in a 16-week hyperlipidemia model mouse.
- A is the vehicle PBS control group and B is the plasminogen group.
- the results showed that the deposition of collagen in the plasminogen group was significantly less than that in the vehicle PBS control group, indicating that plasminogen can alleviate cardiac fibrosis in hyperlipidemia model mice.
- FIG. 9 Serum troponin assay results after administration of plasminogen for 30 days in a 16-week hyperlipidemia model mouse. The results showed that the concentration of serum cardiac troponin in the control group was significantly higher than that in the plasminogen group, and the statistical difference was significant (* indicates P ⁇ 0.05). This indicates that plasminogen can significantly repair the damage of hyperlipidemic heart.
- FIG. 10 Serum high-density lipoprotein cholesterol test results after 10 days and 20 days of plasminogen administration in 3% cholesterol hyperlipidemia model mice.
- the results showed that the serum HDL-C concentration in the plasminogen group was significantly higher than that in the vehicle-treated PBS group after administration of plasminogen, and the high-density lipoprotein concentrations were statistically different after 10 and 20 days of administration.
- Extremely significant ** means P ⁇ 0.01). It is indicated that plasminogen can effectively increase the content of high-density lipoprotein cholesterol in serum of hyperlipidemia model mice and improve dyslipidemia in hyperlipidemia model mice.
- Figure 11 Results of serum total cholesterol after 20 days of administration of plasminogen in 3% cholesterol hyperlipidemia model mice. The results showed that the total cholesterol concentration in the plasminogen group was significantly lower than that in the vehicle PBS control group, and the statistical difference was significant (* indicates P ⁇ 0.05). This indicates that plasminogen can reduce the total cholesterol content in the serum of hyperlipidemia model mice and has the function of lowering blood lipids.
- FIG. 12 Serum low-density lipoprotein cholesterol test results after 20 days of administration of plasminogen in 3% cholesterol hyperlipidemia model mice. The results showed that the concentration of LDL-C in the plasminogen group was significantly lower than that in the vehicle-treated PBS control group, and the statistical difference was significant (* indicates P ⁇ 0.05). Plasminogen Decreasing the serum low-density lipoprotein cholesterol content in hyperlipidemia model mice has the function of improving hyperlipidemia.
- Figure 13 Results of serum atherosclerosis index after 20 days of plasminogen administration in 3% cholesterol hyperlipidemia model mice. The results showed that the atherosclerosis index of the plasminogen group was significantly lower than that of the vehicle PBS control group, and the statistical difference was extremely significant (** means P ⁇ 0.01). This indicates that plasminogen can effectively reduce the risk of atherosclerosis in mice with hyperlipidemia.
- FIG. 14 Serum cardiac risk risk index results after 20 days of plasminogen administration in 3% cholesterol hyperlipidemia model mice. The results showed that the CRI for the plasminogen group was significantly smaller than that of the vehicle control group, and the statistical difference was extremely significant (** indicates P ⁇ 0.01). This indicates that plasminogen can effectively reduce the risk of heart disease in mice with hyperlipidemia.
- Figure 15 is a picture of liver oil red O staining after 35 days of plasminogen administration in 24-25 weeks of diabetic mice. The results showed that the lipid deposition area of the liver of the plasminogen group was significantly smaller than that of the vehicle PBS control group, and the statistical difference was significant (* indicates P ⁇ 0.05). This indicates that plasminogen can reduce the deposition of fat in the liver of diabetic mice.
- Figure 16 is a picture of aortic HE staining after administration of plasminogen for 23 days in 24-25 week old diabetic mice.
- a and C were given to the vehicle PBS control group, and B and D were given to the plasminogen group.
- the results showed that there were foam cell deposition (arrow mark) on the vascular wall of the control vehicle PBS control group, the middle elastic membrane was disorderly arranged, the blood vessel wall was thickened, and the tube wall was uneven; the structure of the middle elastic membrane of the plasminogen group was regular.
- the shape of the wave is uniform and the thickness of the vessel wall is uniform. It indicates that injection of plasminogen has a certain repairing effect on aortic injury caused by diabetes.
- FIG 17 Representative pictures of ventricular oil red O staining after 26 days of administration of plasminogen in 26-week-old diabetic mice.
- A is the vehicle PBS control group and B is the plasminogen group.
- the results showed that ventricular lipid deposition (arrow markers) was significantly less in the plasminogen group than in the vehicle PBS control group. This indicates that plasminogen can reduce ventricular lipid deposition in diabetic mice and promote the repair of ventricular injury.
- Fig. 18 Results of detection of high-density lipoprotein cholesterol in serum after administration of plasminogen for 35 days in 26-week-old diabetic mice. The results showed that after 35 days of continuous injection of human plasmin source in diabetic mice, the serum level of HDL-C in the plasminogen group was higher than that in the vehicle control group, and the statistical difference was significant. It indicated that injection of plasminogen could promote the increase of serum high-density lipoprotein cholesterol and improve the dyslipidemia in diabetic mice.
- FIG. 19 Results of detection of low-density lipoprotein cholesterol (LDL-C) in serum after administration of plasminogen for 23 days in 24-25-week-old diabetic mice.
- Figure 20 Results of serum total cholesterol test after 30 days of administration of plasminogen in ApoE atherosclerotic model mice. The results showed that the total cholesterol concentration in the plasminogen group was significantly lower than that in the vehicle PBS control group, and the statistical difference was significant (* indicates P ⁇ 0.05). This indicates that plasminogen can reduce the total cholesterol in the serum of ApoE atherosclerotic model mice and improve the dyslipidemia in atherosclerotic model mice.
- Figure 21 Results of serum triglyceride test after 30 days of administration of plasminogen in ApoE atherosclerotic model mice. The results showed that the concentration of triglyceride in the plasminogen group was significantly lower than that in the vehicle PBS control group, and the statistical difference was significant (* indicates P ⁇ 0.05). This indicates that plasminogen can reduce the serum triglyceride content of ApoE atherosclerosis model mice and improve dyslipidemia in atherosclerotic model mice.
- FIG. 22 Serum low-density lipoprotein cholesterol test results after 30 days of administration of plasminogen in ApoE atherosclerotic model mice. The results showed that the concentration of LDL-C in the plasminogen group was significantly lower than that in the vehicle-treated PBS control group, and the statistical difference was significant (* indicates P ⁇ 0.05). This indicates that plasminogen can reduce the content of low-density lipoprotein cholesterol in serum of ApoE atherosclerotic model mice and improve dyslipidemia in atherosclerotic model mice.
- FIG 23 Representative pictures of liver oil red O staining after 30 days of administration of plasminogen in ApoE atherosclerotic model mice.
- A is the control vehicle PBS control group
- B is the plasminogen group
- C is the quantitative analysis result.
- the results showed that the liver fat deposition in the plasminogen group was significantly less than that in the vehicle control group, and the statistical analysis was statistically significant (* indicates P ⁇ 0.05). This indicates that plasminogen can reduce the deposition of fat in the liver of atherosclerotic model mice.
- FIG. 24 Representative pictures of aortic sinus oil red O staining after 30 days of administration of plasminogen in ApoE atherosclerotic model mice.
- A is the vehicle PBS control group and B is the plasminogen group.
- the results showed that the aortic sinus fat deposition in the plasminogen group was significantly less than that in the vehicle PBS control group. This indicates that plasminogen can improve the deposition of fat in the aortic sinus of atherosclerotic model mice.
- Figure 25 Representative pictures of aortic sinus simulone red staining after 16 days of plasminogen administration in a 16-week-old hyperlipidemia model mouse. A and C were given to the vehicle PBS control group, and B and D were given to the plasminogen group. The results showed that the area of collagen deposition (arrow mark) in the vascular wall of the aortic sinus of the plasminogen group was given. Significantly less than the vehicle PBS control group, indicating that plasminogen can reduce the level of aortic sinus fibrosis in hyperlipidemia model mice.
- FIG. 26 Cardiac coefficient statistics for 30 days after administration of plasminogen in ApoE atherosclerotic model mice. The results showed that the cardiac organ coefficient of the plasminogen group was significantly lower than that of the vehicle PBS control group. This indicates that plasminogen can ameliorate cardiac compensatory hypertrophy caused by cardiac injury in ApoE atherosclerotic model mice.
- mice of 9 weeks old were fed with 3% cholesterol and high fat diet (Nantong Trofe) for 4 weeks to induce hyperlipidemia [30 , 31] .
- This model was classified as a model of 3% cholesterol hyperlipidemia.
- the modeled mice continued to be fed a 3% cholesterol high fat diet.
- Another 5 male C57 mice of the same age were used as a blank control group, and normal maintenance feed was fed during the experiment.
- the model mice were randomly divided into two groups according to the total cholesterol concentration and body weight, and given to the plasminogen group and the vehicle PBS control group, each group was 8 only.
- mice were injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group.
- Mice were dosed for 30 days after the 30th day of administration, and the mice were sacrificed on the 31st day, and the kidneys were fixed in 4% paraformaldehyde for 24-48 hours.
- the fixed tissue was paraffin-embedded after dehydration by alcohol gradient and transparency of xylene.
- the thickness of the slice was 3 ⁇ m, the slice was dewaxed and rehydrated, washed once with water, stained with 0.1% Sirius red saturated picric acid for 30 minutes, rinsed with running water for 2 min, stained with hematoxylin for 1 minute, rinsed with water, differentiated with 1% hydrochloric acid alcohol, and returned to blue with ammonia. Rinse with running water, dry and seal with neutral gum, and observe under a 200x optical microscope.
- mice of 9 weeks old were fed with 3% cholesterol and high fat diet (Nantong Trofe) for 4 weeks to induce hyperlipidemia [30 , 31] .
- This model was classified as a model of 3% cholesterol hyperlipidemia.
- the modeled mice continued to be fed a 3% cholesterol high fat diet.
- Another 5 male C57 mice of the same age were used as a blank control group, and normal maintenance feed was fed during the experiment.
- the model mice were randomly divided into two groups according to the total cholesterol concentration and body weight, and given to the plasminogen group and the vehicle PBS control group, each group was 8 only. The first dose was recorded as the first day.
- the plasminogen group was injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group. 30 days. On the 31st day, the mice were sacrificed and the kidneys were fixed in 4% paraformaldehyde for 24-48 hours. They were sedimented in 15% and 30% sucrose at 4 °C overnight, embedded in OCT, frozen sections were 8 ⁇ m thick, and oil red O stained for 15 min. 75% alcohol differentiation for 5 seconds, hematoxylin staining for 30 seconds, glycerin gelatin seal. Sections were observed under a 400x optical microscope.
- kidney fat deposition (arrow mark) in the plasminogen group (Fig. 2C) was significantly less than that in the vehicle PBS control group (Fig. 2B), and the quantitative analysis was statistically significant (Fig. 2D); Lipid deposition levels in the lysogen group were similar to those in the blank control group (Fig. 2A). It is indicated that plasminogen can reduce the deposition of fat in the kidney of hyperlipidemic model mice, thereby reducing the damage of kidney caused by fat deposition.
- Example 3 Degradation of plasminogen in the liver of a 16-week hyperlipidemia model mouse
- mice 11-year-old male C57 mice were fed a high-fat and high-cholesterol diet (Nantong Trophy, item number TP2031) for 16 weeks to induce a hyperlipidemia model [30,31] .
- This model was assigned to 16-week hyperlipidemia.
- Mice after modeling continue to feed high cholesterol feed. 50 ⁇ l of blood was taken from each of the three days before administration to detect the total cholesterol (T-CHO) content, and was randomly divided into two groups according to the T-CHO content, 6 in the vehicle PBS control group, and 5 in the plasminogen group. .
- the start of administration was recorded as the first day, and the plasminogen group was injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group.
- the mice were sacrificed for 30 days, and the mice were sacrificed on the 31st day.
- the liver was fixed in 4% paraformaldehyde for 24-48 hours, respectively, in a 15%, 30% sucrose solution at 4 ° C overnight, embedded in OCT, and frozen section thickness. 8 ⁇ m, oil red O staining for 15min, 75% alcohol differentiation for 5 seconds, hematoxylin staining for 30s, glycerin gelatin sealing. Sections were observed under a 200x optical microscope.
- Oil red O staining can show lipid deposition, reflecting the extent of lipid deposition [32] .
- the results showed that the liver fat deposition in the plasminogen group (Fig. 3B) was significantly less than that in the vehicle PBS control group (Fig. 3A), and the statistical analysis was statistically significant (Fig. 3C). This indicates that plasminogen can reduce the deposition of fat in the liver of hyperlipidemia model mice.
- Example 4 Plasminogen-reducing lipid deposition in aortic sinus of a 16-week hyperlipidemia model mouse
- mice 11-year-old male C57 mice were fed a high-fat and high-cholesterol diet (Nantong Trophy, item number TP2031) for 16 weeks to induce a hyperlipidemia model [30,31] .
- This model was assigned to 16-week hyperlipidemia.
- Mice after modeling continue to feed high cholesterol feed. 50 ⁇ l of blood was taken from each of the three days before administration to detect the total cholesterol (T-CHO) content, and was randomly divided into two groups according to the T-CHO content, 6 in the vehicle PBS control group, and 5 in the plasminogen group. .
- the start of administration was recorded as the first day, and the plasminogen group was injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group.
- the mice were sacrificed for 30 days, and the mice were sacrificed on the 31st day.
- the heart tissue was fixed in 4% paraformaldehyde for 24-48 hours, respectively, in a 15%, 30% sucrose overnight at 4 ° C, OCT embedding, aorta
- the sinus frozen section thickness was 8 ⁇ m, oil red O staining for 15 min, 75% alcohol differentiation for 5 seconds, hematoxylin staining for 30 s, and glycerin gelatin for sealing. Sections were observed under 40 (Fig. 4A, 4B), 200 times (Fig. 4C, 4D) magnification optical microscope.
- mice 11-year-old male C57 mice were fed a high-fat and high-cholesterol diet (Nantong Trophy, item number TP2031) for 16 weeks to induce a hyperlipidemia model [30,31] .
- This model was assigned to 16-week hyperlipidemia.
- Mice after modeling continue to feed high cholesterol feed. 50 ⁇ l of blood was taken from each of the three days before administration to detect the total cholesterol (T-CHO) content, and was randomly divided into two groups according to the T-CHO content, 6 in the vehicle PBS control group, and 5 in the plasminogen group. .
- the start of administration was recorded as the first day, and the plasminogen group was injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group.
- the mice were administered for 30 days, and the mice were sacrificed on the 31st day, and the heart tissue was fixed in 4% paraformaldehyde for 24-48 hours.
- the fixed tissue was paraffin-embedded after dehydration by alcohol gradient and transparency of xylene.
- the fixed tissue samples were dehydrated by alcohol gradient and transparent to xylene for paraffin embedding.
- the thickness of the aortic sinus tissue section was 3 ⁇ m.
- the sections were dewaxed and rehydrated and stained with hematoxylin and eosin (HE staining). After 1% hydrochloric acid alcohol differentiation, the ammonia water returned to the blue and the alcohol gradient was dehydrated and sealed, and the slices were at 40 (Fig. 5A, B). 200 times (Fig. 5C, D) observed under an optical microscope.
- HE staining hematoxylin and eosin
- mice 11-year-old male C57 mice were fed a high-fat and high-cholesterol diet (Nantong Trophy, item number TP2031) for 16 weeks to induce a hyperlipidemia model [30,31] .
- This model was assigned to 16-week hyperlipidemia.
- Mice after modeling continue to feed high cholesterol feed. 50 ⁇ l of blood was taken from each of the three days before administration to detect the total cholesterol (T-CHO) content, and was randomly divided into two groups according to the T-CHO content, 6 in the vehicle PBS control group, and 5 in the plasminogen group. .
- the start of administration was recorded as the first day, and the plasminogen group was injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group.
- the mice were administered for 30 days, and the mice were sacrificed on the 31st day, and the heart tissue was fixed in 4% paraformaldehyde for 24-48 hours.
- the fixed tissue was paraffin-embedded after dehydration by alcohol gradient and transparency of xylene.
- the thickness of the tissue section was 3 ⁇ m, and the sections were dewaxed and rehydrated and washed once with water. Incubate for 15 minutes with 3% hydrogen peroxide and wash twice with water for 5 minutes each time.
- the color was developed according to the DAB kit (Vector Laboratories, Inc., USA), washed three times with water, and counterstained with hematoxylin for 30 seconds, and rinsed with running water for 5 minutes.
- the gradient alcohol was dehydrated, the xylene was transparent and the neutral gum was sealed, and the sections were observed under a 200-fold optical microscope.
- Fibrinogen is a precursor of fibrin.
- fibrinogen is hydrolyzed into fibrin deposits at the site of injury [33,34] . Therefore, the level of damaged local fibrin can be used as a marker of the degree of damage.
- Example 7 Plasminogen effectively protects myocardial injury in a 16-week hyperlipidemia model mouse
- mice 11-year-old male C57 mice were fed a high-fat and high-cholesterol diet (Nantong Trophy, item number TP2031) for 16 weeks to induce a hyperlipidemia model [30,31] .
- This model was assigned to 16-week hyperlipidemia.
- Mice after modeling continue to feed high cholesterol feed. 50 ⁇ l of blood was taken from each of the three days before administration to detect the total cholesterol (T-CHO) content, and was randomly divided into two groups according to the T-CHO content, 6 in the vehicle PBS control group, and 5 in the plasminogen group. .
- the start of administration was recorded as the first day, and the plasminogen group was injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group.
- the mice were administered for 30 days, and the mice were sacrificed on the 31st day, and the heart tissue was fixed in 4% paraformaldehyde for 24-48 hours.
- the fixed tissue was paraffin-embedded after dehydration by alcohol gradient and transparency of xylene.
- the thickness of the tissue section was 3 ⁇ m, and the sections were dewaxed and rehydrated and washed once with water. Incubate for 15 minutes with 3% hydrogen peroxide and wash twice with water for 5 minutes each time.
- IgM antibodies play an important role in the clearance of apoptotic and necrotic cells, and the level of local IgM antibodies in damaged tissues is positively correlated with the degree of injury [35,36] . Therefore, detecting the level of local IgM antibodies in tissues and organs can reflect the degree of damage of the tissues and organs.
- Example 8 Plasminogen attenuates cardiac fibrosis in a 16-week hyperlipidemia model mouse
- mice 11-year-old male C57 mice were fed a high-fat and high-cholesterol diet (Nantong Trophy, item number TP2031) for 16 weeks to induce a hyperlipidemia model [30,31] .
- This model was assigned to 16-week hyperlipidemia.
- Mice after modeling continue to feed high cholesterol feed. 50 ⁇ l of blood was taken from each of the three days before administration to detect the total cholesterol (T-CHO) content, and was randomly divided into two groups according to the T-CHO content, 6 in the vehicle PBS control group, and 5 in the plasminogen group. .
- the start of administration was recorded as the first day, and the plasminogen group was injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group.
- the mice were administered for 30 days, and the mice were sacrificed on the 31st day, and the heart tissue was fixed in 4% paraformaldehyde for 24-48 hours.
- the fixed tissue was paraffin-embedded after dehydration by alcohol gradient and transparency of xylene. The thickness of the tissue section was 3 ⁇ m.
- the sections were dewaxed and rehydrated, washed once with water, stained with 0.1% Sirius red saturated picric acid for 30 minutes, rinsed with running water for 2 min, stained with hematoxylin for 1 minute, rinsed with water, differentiated with 1% hydrochloric acid, and returned to blue with ammonia. Rinse with running water, dry and seal with neutral gum, and observe under a 200x optical microscope.
- Sirius red staining can make collagen staining for a long time. As a special staining method for pathological sections, Sirius red staining can specifically display collagen tissue.
- mice 11-year-old male C57 mice were fed a high-fat and high-cholesterol diet (Nantong Trophy, item number TP2031) for 16 weeks to induce a hyperlipidemia model [30,31] .
- This model was assigned to 16-week hyperlipidemia.
- Mice after modeling continue to feed high cholesterol feed. 50 ⁇ l of blood was taken from each of the three days before administration to detect the total cholesterol (T-CHO) content, and was randomly divided into two groups according to the T-CHO content, 6 in the vehicle PBS control group, and 5 in the plasminogen group. .
- the start of administration was recorded as the first day, and the plasminogen group was injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group.
- the mice began to fast after the 30th day of administration, fasting for 16 hours.
- the eyeballs were taken for blood collection, and the supernatant was obtained by centrifugation.
- Cardiac troponin I (CTNI) detection kit was used. (Nanjing built) to measure the concentration of troponin in serum.
- Cardiac troponin I is an important marker of myocardial injury, and its serum concentration can reflect the extent of myocardial damage [37] .
- mice Sixteen-week-old male C57 mice were fed with 3% cholesterol and high fat diet (Nantong Trofe) for 4 weeks to induce hyperlipidemia [30 , 31] .
- This model was designated as a model of 3% cholesterol hyperlipidemia.
- the modeled mice continued to be fed a 3% cholesterol high fat diet.
- 50 ⁇ L of blood was taken from each mouse three days before the administration, and total cholesterol was measured, and was randomly divided into two groups according to the total cholesterol concentration and body weight, with 8 in each group. The first dose was recorded as the first day.
- the plasminogen group was injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group. 20 days.
- mice On days 10 and 20, the mice were fasted for 16 hours, and on the 11th and 21st day, 50 ⁇ l of blood was taken from the iliac venous plexus, and the supernatant was centrifuged to detect serum high-density lipoprotein cholesterol (HDL-C).
- HDL-C serum high-density lipoprotein cholesterol
- High-density lipoprotein is an anti-atherosclerotic plasma lipoprotein, a protective factor for coronary heart disease, commonly known as “vascular scavenger.”
- mice Sixteen-week-old male C57 mice were fed with 3% cholesterol and high fat diet (Nantong Trofe) for 4 weeks to induce hyperlipidemia [30 , 31] .
- This model was designated as a model of 3% cholesterol hyperlipidemia.
- the modeled mice continued to be fed a 3% cholesterol high fat diet.
- 50 ⁇ L of blood was taken from each mouse three days before the administration, and total cholesterol was measured, and was randomly divided into two groups according to the total cholesterol concentration and body weight, with 8 in each group. The first dose was recorded as the first day.
- the plasminogen group was injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group. 20 days.
- mice On the 20th day, the mice were fasted for 16 hours. On the 21st day, 50 ⁇ L of blood was taken from the iliac venous plexus, and the supernatant was obtained by centrifugation. Total cholesterol test was performed using the total cholesterol test kit (Nanjing Institute of Bioengineering, article number A111-1). .
- the test results showed that the total cholesterol concentration in the plasminogen group was significantly lower than that in the vehicle PBS control group, and the statistical difference was significant (Fig. 11). This indicates that plasminogen can reduce the total cholesterol in the serum of hyperlipidemia model mice.
- mice Sixteen-week-old male C57 mice were fed with 3% cholesterol and high fat diet (Nantong Trofe) for 4 weeks to induce hyperlipidemia [30 , 31] .
- This model was designated as a model of 3% cholesterol hyperlipidemia.
- the modeled mice continued to be fed a 3% cholesterol high fat diet.
- 50 ⁇ l of blood was taken from each mouse three days before the administration, and total cholesterol was measured, and was randomly divided into two groups according to the total cholesterol concentration and body weight, with 8 in each group.
- the first dose was recorded as the first day, and the plasminogen group was injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group. 20 days.
- mice On the 20th day, the mice were fasted for 16 hours. On the 21st day, 50 ⁇ L of blood was taken from the iliac venous plexus, and the supernatant was obtained by centrifugation.
- the low-density lipoprotein cholesterol test kit (Nanjing Institute of Bioengineering, item number A113-1) was used. Low density lipoprotein cholesterol (LDL-C) detection.
- Low-density lipoprotein is a lipoprotein particle that carries cholesterol into peripheral tissue cells and can be oxidized to oxidized low-density lipoprotein when low-density lipoproteins, especially oxidized low-density lipoprotein (OX-LDL), are excessive.
- OX-LDL oxidized low-density lipoprotein
- the cholesterol it carries will accumulate on the arterial wall and cause arteriosclerosis. Therefore, low density lipoprotein cholesterol is called "bad cholesterol.”
- plasminogen can reduce the content of low-density lipoprotein cholesterol in serum of hyperlipidemia model mice and improve dyslipidemia in hyperlipidemia mice.
- mice Sixteen-week-old male C57 mice were fed with 3% cholesterol and high fat diet (Nantong Trofe) for 4 weeks to induce hyperlipidemia [30 , 31] .
- This model was designated as a model of 3% cholesterol hyperlipidemia.
- the modeled mice continued to be fed a 3% cholesterol high fat diet.
- 50 ⁇ l of blood was taken from each mouse three days before administration, total cholesterol (T-CHO) was detected, and two groups were randomly divided into two groups according to the total cholesterol concentration and body weight.
- the start of administration was recorded as the first day, and the plasminogen group mice were injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group.
- mice After the 20th day of administration, the mice began to fast, fasted for 16 hours, and on the 21st day, 50 ⁇ L of blood was taken from the iliac venous plexus, and the supernatant was obtained by centrifugation.
- the total cholesterol content was determined by the total cholesterol test kit (Nanjing Jianshe Bioengineering Research Institute). , Item No. A111-1) was tested; high-density lipoprotein cholesterol (HDL-C) content was detected using a high-density lipoprotein cholesterol test kit (Nanjing Institute of Bioengineering, item number A112-1).
- the atherosclerosis index is a comprehensive indicator of clinical prediction of atherosclerosis. It is considered to be clinically more meaningful than the individual cholesterol, triglyceride, high-density lipoprotein and low-density lipids in estimating the degree of risk of coronary heart disease.
- the protein is larger [38] .
- Atherosclerosis index (T-CHO-HDL-C) / HDL-C.
- mice Sixteen-week-old male C57 mice were fed with 3% cholesterol and high fat diet (Nantong Trofe) for 4 weeks to induce hyperlipidemia [30 , 31] .
- This model was designated as a model of 3% cholesterol hyperlipidemia.
- the modeled mice continued to be fed a 3% cholesterol high fat diet.
- 50 ⁇ l of blood was taken from each mouse three days before administration, and total cholesterol (T-CHO) was measured, and randomly divided into two groups according to the total cholesterol concentration, 8 in each group. The start of administration was recorded as the first day, and the plasminogen group mice were injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group.
- mice After the 20th day of administration, the mice began to fast, fasted for 16 hours, and on the 21st day, 50 ⁇ L of blood was taken from the iliac venous plexus, and the supernatant was obtained by centrifugation.
- the total cholesterol content was determined by the total cholesterol test kit (Nanjing Jianshe Bioengineering Research Institute). , Item No. A111-1) was tested; high-density lipoprotein cholesterol (HDL-C) content was detected using a high-density lipoprotein cholesterol test kit (Nanjing Institute of Bioengineering, item number A112-1).
- Cardiac risk index T-CHO/HDL-C.
- Cardiac risk index (CRI) is used to assess the risk of dyslipidemia-induced heart disease [38] .
- mice Ten male db/db mice aged 24-25 weeks were randomly divided into two groups, and the vehicle PBS control group and the plasminogen group were each given 5 rats. On the day of the start of the experiment, the day 0 was recorded and the group was weighed, and the first day was given to plasminogen or PBS. The plasminogen group was injected with plasminogen at a dose of 2 mg/0.2 ml/day/day, and the same volume of PBS was administered to the vehicle PBS control group for 30 days. On the 36th day, the mice were sacrificed and the liver tissue was fixed with 4% paraformaldehyde for 24-48 hours.
- mice Ten male db/db mice aged 24-25 weeks were randomly divided into two groups, and the vehicle PBS control group and the plasminogen group were each given 5 rats. On the day of the start of the experiment, the group was weighed on the 0th day, and the PBS or plasminogen was administered on the first day for 31 days. The plasminogen group was injected with plasminogen at a dose of 2 mg/0.2 ml/day/day, and the same volume of PBS was administered to the vehicle PBS control group by tail vein injection. Mice were sacrificed on day 32 and the aorta was fixed in 10% neutral formalin fixative for 24 hours. The fixed aorta was paraffin-embedded by alcohol gradient dehydration and xylene transparency.
- the thickness of the tissue section was 5 ⁇ m, and the sections were dewaxed and rehydrated and stained with hematoxylin and eosin (HE staining). After 1% hydrochloric acid alcohol was differentiated, the ammonia water returned to the blue and the alcohol gradient was dehydrated to seal the slices, and the sections were 400 times (Fig. 16A, B). And 1000 times (Fig. 16C, D) under oil mirror observation.
- Diabetes with hyperlipidemia is a common complication of diabetes and an important risk factor for diabetic macroangiopathy [39] .
- mice at 26 weeks of age were randomly assigned to 4 rats in the plasminogen group and 5 to the vehicle PBS control group.
- the plasminogen group was injected with human plasminogen 2 mg/0.2 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group for 35 days.
- the mice were sacrificed on the 36th day, and the hearts were fixed in 4% paraformaldehyde for 24-48 hours, respectively, in 15%, 30% sucrose at 4 ° C overnight, embedded in OCT, frozen section thickness 8 ⁇ m, oil red O staining 15 min, 75% alcohol differentiation for 5 seconds, hematoxylin staining for 30 seconds, glycerin gelatin seal. Sections were observed under a 200x optical microscope.
- ventricular lipid deposition (arrow mark) was significantly less in the plasminogen group (Fig. 17B) than in the vehicle PBS control group (Fig. 17A). This indicates that plasminogen can reduce the deposition of fat in the ventricle of diabetic mice and promote the repair of ventricular damage.
- mice Twenty male 26-week-old db/db mice were randomly divided into groups of 11 in the plasminogen group and 9 in the vehicle PBS control group. On the day of the start of the experiment, the day 0 was recorded and the group was weighed, and on the first day, plasminogen or PBS was administered for 35 days. Injection of human plasminogen into the plasminogen group 2 mg/0.2 ml/day/day, the same amount of PBS was injected into the tail vein of the control group.
- mice were harvested from the eyeballs for whole blood, centrifuged at 3500C/min for 10 minutes at 4°C, and the supernatant was taken and high-density in serum was detected using the High Density Lipoprotein Test Kit (Nanjing Institute of Bioengineering, Cat. No. A112-1). Lipoprotein cholesterol (HDL-C) concentration.
- HDL-C Lipoprotein cholesterol
- mice of 24-25 weeks old were randomly divided into groups, 5 rats in the plasminogen group and the vehicle control group, and 3 db/m were used as the normal control group.
- the day of the experiment was recorded as the 0th day weighing group, and the first day was given to plasminogen or PBS for 31 days.
- the plasminogen group was injected with human plasminogen 2 mg/0.2 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail vein of the PBS control group.
- the normal control mice were not treated.
- mice were harvested from the eyeballs for whole blood, centrifuged at 3500C/min for 10 minutes at 4°C, and the supernatant was taken and tested in serum using the Low Density Lipoprotein Cholesterol Detection Kit (Nanjing Institute of Bioengineering, Cat. No. A113-1). Low density lipoprotein cholesterol (LDL-C) concentration.
- LDL-C Low density lipoprotein cholesterol
- mice at 6 weeks of age were fed a high-fat, high-cholesterol diet (Nantong Trofe, TP2031) for 16 weeks to induce an atherosclerosis model [40,41] .
- Mice after modeling continue to feed high-fat, high-cholesterol feed.
- 50 ⁇ l of blood was taken from each of the three days before administration to detect the total cholesterol (T-CHO) content, and was randomly divided into two groups according to the T-CHO content, 7 rats in the vehicle PBS control group, and 6 cells in the plasminogen group. .
- the first dose was started on the first day.
- the plasminogen group was injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group. 30 days. On the 30th day, the mice were fasted for 16 hours. On the 31st day, the eyeballs were removed and blood was taken. The supernatant was centrifuged to obtain a total cholesterol test using a total cholesterol test kit (Nanjing Institute of Bioengineering, item number A111-1).
- Example 21 Plasminogen reduces serum triglyceride levels in ApoE atherosclerotic mice
- mice at 6 weeks of age were fed a high-fat, high-cholesterol diet (Nantong Trofe, TP2031) for 16 weeks to induce an atherosclerosis model [40,41] .
- Mice after modeling continue to feed high-fat, high-cholesterol feed.
- 50 ⁇ l of blood was taken from each of the three days before administration to detect the total cholesterol (T-CHO) content, and was randomly divided into two groups according to the T-CHO content, 7 rats in the vehicle PBS control group, and 6 cells in the plasminogen group. .
- the first dose was recorded as the first day.
- the plasminogen group was injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group. 30 days. On the 30th day, the mice were fasted for 16 hours. On the 31st day, the eyeballs were taken for blood collection, and the supernatant was centrifuged to obtain a triglyceride detection kit (Nanjing Institute of Bioengineering, article number A110-1) for triglyceride detection.
- mice at 6 weeks of age were fed a high-fat, high-cholesterol diet (Nantong Trofe, TP2031) for 16 weeks to induce an atherosclerosis model [40,41] .
- Mice after modeling continue to feed high-fat, high-cholesterol feed.
- 50 ⁇ l of blood was taken from each of the three days before administration to detect the total cholesterol (T-CHO) content, and was randomly divided into two groups according to the T-CHO content, 7 rats in the vehicle PBS control group, and 6 cells in the plasminogen group. .
- the first dose was recorded as the first day.
- the plasminogen group was injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group. 30 days. On the 30th day, the mice were fasted for 16 hours. On the 31st day, the eyeballs were taken for blood collection, and the supernatant was centrifuged to obtain a low-density lipoprotein cholesterol (LDL-C) test kit (Nanjing Institute of Bioengineering, item number A113-1). LDL-C detection.
- LDL-C low-density lipoprotein cholesterol
- mice at 6 weeks of age were fed a high-fat, high-cholesterol diet (Nantong Trofe, TP2031) for 16 weeks to induce an atherosclerosis model [40,41] .
- Mice after modeling continue to feed high-fat, high-cholesterol feed.
- 50 ⁇ l of blood was taken from each of the three days before administration to detect the total cholesterol (T-CHO) content, and was randomly divided into two groups according to the T-CHO content, 7 rats in the vehicle PBS control group, and 6 cells in the plasminogen group. .
- the first dose was recorded as the first day.
- the plasminogen group was injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group. 30 days.
- the mice were sacrificed on the 31st day, and the liver tissues were fixed in 4% paraformaldehyde for 24-48 hours, respectively, in a 15%, 30% sucrose overnight at 4 ° C, embedded in OCT, frozen section thickness 8 ⁇ m, oil red O Dyeing for 15 min, 75% alcohol differentiation for 5 seconds, hematoxylin staining for 30 seconds, glycerin gelatin for sealing. Sections were observed under a 400x optical microscope.
- mice at 6 weeks of age were fed a high-fat, high-cholesterol diet (Nantong Trofe, TP2031) for 16 weeks to induce an atherosclerosis model [40,41] .
- Mice after modeling continue to feed high-fat, high-cholesterol feed.
- 50 ⁇ l of blood was taken from each of the three days before administration to detect the total cholesterol (T-CHO) content, and was randomly divided into two groups according to the T-CHO content, 7 rats in the vehicle PBS control group, and 6 cells in the plasminogen group. .
- the first dose was recorded as the first day.
- the plasminogen group was injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group. 30 days.
- the mice were sacrificed on the 31st day, and the heart tissue was fixed in 4% paraformaldehyde for 24-48 hours.
- the cells were sedimented in 15% and 30% sucrose at 4 °C overnight, embedded in OCT, and the frozen section was 8 ⁇ m thick. Oil red O Dyeing for 15 min, 75% alcohol differentiation for 5 seconds, hematoxylin staining for 30s, glycerin gelatin for sealing. Sections were observed under a 40x optical microscope.
- mice 11-year-old male C57 mice were fed a high-fat and high-cholesterol diet (Nantong Trophy, item number TP2031) for 16 weeks to induce a hyperlipidemia model [30,31] .
- This model was assigned to 16-week hyperlipidemia.
- Mice after modeling continue to feed high cholesterol feed. 50 ⁇ l of blood was taken from each of the three days before administration to detect the total cholesterol (T-CHO) content, and was randomly divided into two groups according to the T-CHO content, 6 in the vehicle PBS control group, and 5 in the plasminogen group. .
- the start of administration was recorded as the first day, and the plasminogen group was injected with human plasminogen 1 mg/0.1 ml/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group.
- the mice were sacrificed on the 31st day, and the hearts were fixed in 4% paraformaldehyde for 24-48 hours.
- the fixed tissue was paraffin-embedded after dehydration by alcohol gradient and transparency of xylene.
- the thickness of the aortic sinus slice was 3 ⁇ m. The slice was dewaxed and rehydrated and washed once.
- mice at 6 weeks of age were fed a high-fat, high-cholesterol diet (Nantong Trofe, TP2031) for 16 weeks to induce an atherosclerosis model [40,41] .
- the mice after the modeling were taken 50 ⁇ l of blood for three days before the administration to detect the total cholesterol (T-CHO) content, and were randomly divided into two groups according to the T-CHO content, and the vehicle PBS control group was given 7 cells. 6 lysogen group.
- the first dose was started on the first day.
- the plasminogen group was injected with human plasminogen 1 mg/0.1 mL/day/day into the tail vein, and the same volume of PBS was injected into the tail of the vehicle PBS control group.
- Cardiac coefficient (%) heart weight / body weight ⁇ 100.
- Grone HJ Glomerular lipids in non-hereditary forms of glomerulopathy/glomerulo nephritis [J] . Nephrol. Dial Transplant. 1999, 14: 1595-1598.
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Abstract
L'invention concerne une méthode visant à prévenir et/ou traiter les lésions rénales induites par des lipides et maladies apparentées d'un patient, comprenant l'administration d'une quantité efficace d'un point de vue préventif et/ou thérapeutique de plasminogène à un patient susceptible de souffrir ou souffrant de troubles du métabolisme lipidique, ou souffrant d'autres maladies qui s'accompagnent de troubles du métabolisme lipidique. La présente invention concerne également un médicament, une composition pharmaceutique, un produit et un kit comprenant du plasminogène, utilisés pour prévenir et/ou traiter les lésions rénales induites par des lipides et maladies apparentées d'un patient.
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EP4122481A4 (fr) * | 2020-03-24 | 2023-04-05 | Talengen International Limited | Procédé et médicament pour le traitement de la maladie de huntington |
EP4122490A4 (fr) * | 2020-03-24 | 2023-04-05 | Talengen International Limited | Procédé et médicament pour le traitement de la maladie de parkinson |
EP4122488A4 (fr) * | 2020-03-24 | 2023-04-05 | Talengen International Limited | Procédé et médicament pour le traitement de la maladie d'alzheimer |
EP4122489A4 (fr) * | 2020-03-24 | 2023-04-12 | Talengen International Limited | Méthode et médicament pour favoriser la dégradation d'une protéine mal repliée et d'un agrégat de celle-ci |
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