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WO2008066297A1 - Composition pharmaceutique pour le traitement et la prévention de la resténose - Google Patents

Composition pharmaceutique pour le traitement et la prévention de la resténose Download PDF

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Publication number
WO2008066297A1
WO2008066297A1 PCT/KR2007/006011 KR2007006011W WO2008066297A1 WO 2008066297 A1 WO2008066297 A1 WO 2008066297A1 KR 2007006011 W KR2007006011 W KR 2007006011W WO 2008066297 A1 WO2008066297 A1 WO 2008066297A1
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WIPO (PCT)
Prior art keywords
compound
formula
composition according
substituted
intestine
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PCT/KR2007/006011
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English (en)
Inventor
Taehwan Kwak
Sang-Ku Yoo
Myung-Gyu Park
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Mazence Inc.
Kt & G Co., Ltd.
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Priority claimed from KR1020070107041A external-priority patent/KR20080047971A/ko
Application filed by Mazence Inc., Kt & G Co., Ltd. filed Critical Mazence Inc.
Priority to JP2009538339A priority Critical patent/JP2010510982A/ja
Priority to US12/515,015 priority patent/US20100255054A1/en
Priority to EP07834306A priority patent/EP2099448A4/fr
Publication of WO2008066297A1 publication Critical patent/WO2008066297A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/335—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
    • A61K31/34—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00—Drugs for disorders of the cardiovascular system

Definitions

  • the present invention relates to a pharmaceutical composition having therapeutic effect on the treatment and/or prevention of restenosis by inhibiting vascular smooth muscle cell proliferation, and more particularly to a pharmaceutical composition including (a) a therapeutically effective amount of a compound represented by Formula 1 and Formula 2, or a pharmaceutically acceptable salt, prodrug, solvate or isomer thereof, and (b) a pharmaceutically acceptable carrier, a diluent or an excipient, or any combination thereof.
  • Vascular smooth muscle cell proliferation which is a response to vessel wall injury, refers to a phenomenon observed conspicuously in arteriosclerosis which shows secondary changes in the arterial intima due to vessel wall injury caused by lipids.
  • vascular smooth muscle cell proliferation is known to be a leading cause of atherosclerosis.
  • vascular smooth muscle cell proliferation is known serious problem, considerably observed after a surgical operation, such as angioplasty, bypass surgery or vascular graft, which is the best method in the present for recovering functions of blood vessels that have been narrowed by arteriosclerosis. Therefore, in order to prevent and treat arteriosclerosis, vascular smooth muscle cell proliferation is considered to be a very important factor and as a result, research on the vascular smooth muscle cell proliferation is currently carried out actively.
  • AMPK AMP-activated protein kinase
  • NAD is an important factor among various factors for increasing AMPK activity
  • NAD(P)H:quinine oxidoreductase 1 (NQOl) is one of the main factors for elevating NAD in cells.
  • NQO is a flavoprotein and catalyzes two electron reduction and detoxification of quinone or quinone derivatives.
  • the activity of NQO prevents formation of very highly-reactive quinone metabolites, detoxifies benzo(d)pyrenes and quinones, and diminishes the toxicity of chromium.
  • the activity of NQO is found in all kinds of tissues, but varies from tissue to tissue.
  • NQO gene expression is triggered by xenobiotics, anti-oxidants, oxidants, heavy metals, UV light, radiation exposure, or the like.
  • NQO is a part of numerous cellular defense mechanisms induced by oxidative stress. Associated expressions of genes implicated in such cellular defense mechanisms, including NQO gene expression, serve to protect cells against oxidative stress, free radicals and neoplasia.
  • NQOl is largely distributed in epithelial and endothelial cells. This implies that NQOl can act as a defense mechanism against compounds absorbed via air, the esophagus or blood vessels. Recent research shows participation of NQOl in stabilization of the cell cycle regulating p53 through the redox mechanism.
  • NQO utilizes both of NADH and NADPH as an electron donor. While NADPH is used as a reducing agent in biosynHietic processes, NADH is used in energy-producing reactions. NADPH is an important factor implicated in fat synthesis, and the synthesis of palmitate requires 14 NADPH molecules.
  • NAD(P)H oxidase an oxidative enzyme
  • ROS reactive oxygen species
  • ROS reactive oxygen species
  • NADH and NADPH may be a pathogenic factor for significant diseases including inflammatory conditions and diseases caused by ROS.
  • NAD + and NADP + fat oxidation and various energy expenditure (metabolism) by NAD + and NADP + will be activated when an in vivo or in vitro environment can be established to ensure stable maintenance of NAD + ZNADH and NADP + ZlSfADPH ratios in an increased state.
  • NA(D)P + functioning as a substrate or a coenzyme for various enzymes involved in numerous metabolisms including fat oxidation.
  • NA(D)P + is an in vivo substance implicated in numerous biological metabolic processes and is used as a substrate or a coenzyme for various kinds of enzymes including NAD + -dependent DNA ligase, NAD + -dependent oxidoreductase, poly(ADP- ribose) polymerase (PARP), CD38, AMPK, CtBP and Sir2p family members, as well as used as a coenzyme of various enzymes responsible for regulation of energy metabolism, DNA repair and transcription.
  • NAD + was found to play a crucial role in transcriptional regulation, longevity, calorie restriction-mediated diseases through the above-mentioned in vivo actions.
  • the NAD(P) + ZNAD(P)H ratio a key factor regulating intracellular redox state, is often regarded as an indicator reflecting the metabolic state of organisms.
  • NAD(P) + ZNAD(P)H ratio varies with changes in the metabolic process.
  • NAD + functions as a metabolic regulator.
  • a variety of aging-related diseases are directly or indirectly associated with changes in the redox state OfNAD + OrNAD(P) + ZNAD(P)H.
  • AMP-activated protein kinase is a protein that senses the energy status, degree of redox state and phosphorylation in living organisms, and is activated not only by AMP but also by NAD + (J. Biol. Chem. 2004, Dec. 17;279 (51):52934-9).
  • AMPK activated by phosphorylation has been reported to exhibit various functions and actions such as inhibition of fat synthesis, promotion of glucose uptake, promotion of fat degradation (lipolysis) and fat oxidation, promotion of glycolysis, enhancement of insulin sensitivity, suppression of glycogen synthesis, suppression of triglyceride and cholesterol synthesis, alleviation of inflammation (anti-inflammatory action), vasodilatory activity, functional improvement of cardiovascular systems, mitochondrial regeneration and muscle structural changes, anti-oxidative function, anti-aging and anti-cancer effects.
  • AMPK is recognized as a target protein for treatments of diseases such as obesity, diabetes, metabolic syndromes, fatty liver, ischemic heart diseases, hypertension, degenerative cerebral diseases, hyperlipidemia, diabetic complications and erectile dysfunction (Nat. Med. 2004 Jul;10(7):727-33; Nature reviews 3, 340-351, 2004; and Genes & Development 27, 1-6, 2004).
  • alpha-lipoic acid can exert anti-obesity effects by suppressing hypothalamic AMPK activity, thus controlling appetite. They have also reported that alpha-lipoic acid promotes fat metabolism via activation of AMPK in muscle tissues, not hypothalamus, and alpha-lipoic acid is therapeutically effective for the treatment of obesity because it facilitates energy expenditure by activating UCP- 1 , particularly in adipocytes.
  • AMPK activates endothelial NO synthase through phosphorylation, in the presence of Ca-calmodulin in murine muscle cells and myocardial cells. This represents that AMPK is implicated in heart diseases including angina pectoris.
  • an object of the present invention is to provide a pharmaceutical composition comprising, as an active ingredient, a compound which is therapeutically effective for the treatment and prevention of restenosis associated with surgical operations for atreatment of arteriosclerosis.
  • R 1 and R 2 are each independently hydrogen, halogen, amino, alkoxy, or C 1 -C 6 lower alkyl or alkoxy, or R 1 and R 2 may be taken together to form a substituted or unsubstituted cyclic structure which may be saturated or partially or completely unsaturated;
  • R 3 , R 4 , R 5 , R 6 , R 7 and R 8 are each independently hydrogen, hydroxyl, amino, C 1 -C 20 alkyl, alkene or alkoxy, C 4 -C 20 cycloalkyl, heterocycloalkyl, aryl or heteroaryl, or two substituents of R 3 to Rs may be taken together to form a cyclic structure which may be saturated or partially or completely unsaturated;
  • X is selected from a group consisting of C(R)(R'), N(R"), O and S, preferably O or S, and more preferably O, wherein R' is hydrogen or C 1 -C 6 lower alkyl;
  • Y is C, S or N, with proviso that when Y is S, R 7 and Rg are nothing and when Y is N, R 7 is hydrogen or C 1 -C 6 lower alkyl and Rg is nothing;
  • n is 0 or 1, with proviso that when n is 0, carbon atoms adjacent to n form a cyclic structure via a direct bond;
  • the inventors of the present invention have conducted experiments. And, as a result, it was confirmed that when the compound according to Formula 1 or 2 was administered to vascular smooth muscle cell, it elevated NQOl expression, and NAD + , which increased in accordance with the NQOl expression, elevated AMPK activity to inhibit vascular smooth muscle cell proliferation. In addition, it was also confirmed that administration of the compound inhibited intimal hyperplasia after performing balloon angioplasty for treatment of arteriosclerosis.
  • the term "pharmaceutically acceptable salt” means a formulation of a compound that does not cause significant irritation to an organism to which it is administered and does not abrogate the biological activity and properties of the compound.
  • the pharmaceutical salt may include acid addition salts of the compound with acids capable of forming a non-toxic acid addition salt containing pharmaceutically acceptable anions, for example, inorganic acids such as hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, hydrobromic acid and hydroiodic acid; organic carbonic acids such as tartaric acid, formic acid, citric acid, acetic acid, trichloroacetic acid, trifluoroacetic acid, gluconic acid, benzoic acid, lactic acid, fumaric acid, maleic acid and salicylic acid; or sulfonic acids such as methanesulfonic acid, ethanesulfonic acid, benzenesulfonic acid and p-toluenesulfonic acid.
  • examples of pharmaceutically acceptable carboxylic acid salts include salts with alkali metals or alkaline earth metals such as lithium, sodium, potassium, calcium and magnesium, salts with amino acids such as arginine, lysine and guanidine, salts with organic bases such as dicyclohexylamine, N-methyl-D- glucamine, tris(hydroxymemyl)me%larnine, diethanolamine, choline and triethylamine.
  • the compounds in accordance with the present invention may be converted into salts thereof, by conventional methods well-known in the art.
  • the term "prodrug” means an agent that is converted into the parent drug in vivo.
  • Prodrugs are often useful because, in some situations, they may be easier to administer than the parent drug. They may, for instance, be bioavailable by oral administration, whereas the parent may be not.
  • the prodrugs may also have improved solubility in pharmaceutical compositions over the parent drug.
  • An example of a prodrug would be a compound of the present invention which is administered as an ester (the "prodrug") to facilitate transport across a cell membrane where water-solubility is detrimental to mobility, but which then is metabolically hydrolyzed to the carboxylic acid, the active entity, once inside the cell where water solubility is beneficial.
  • a further example of the prodrug might be a short peptide (polyamino acid) bonded to an acidic group, where the peptide is metabolized to reveal the active moiety.
  • the pharmaceutical compounds in accordance with the present invention can include a prodrug represented by Formula 1 a below as an active material:
  • R 1 , R. 2 , R3, R 4 , R 5 , R ⁇ , R7, Rg, X and n are as defined in Formula 1.
  • R.9 and R 10 are each independently -SO 3 TSIa + or substituent represented by Formula A below or a salt thereof,
  • R 11 and R 12 are each independently hydrogen or substituted or unsubstituted C 1 -
  • RB is selected from the group consisting of substituents i) to vi ⁇ ) below:
  • R, R' and R" are each independently hydrogen or substituted or unsubstituted C 1 -C 20 linear alkyl or C 1 -C 20 branched alkyl, R 14 is selected from the group consisting of hydrogen, substituted or unsubstituted amine, cycloalkyl, heterocycloalkyl, aryl and heteroaryl, 1 is selected from the 1 ⁇ 5;
  • k is selected from the 0-20, with proviso that when k is 0, R 11 and R 12 are not anything, and R 13 is directly bond to a carbonyl group.
  • solvate means a compound of the present invention or a salt thereof, which further includes a stoichiometric or non-stoichiometric amount of a solvent bound thereto by non-covalent intermolecular forces.
  • Preferred solvents are volatile, non-toxic, and/or acceptable for administration to humans. Where the solvent is water, the solvate refers to a hydrate.
  • the term "isomer” means a compound of the present invention or a salt thereof that has the same chemical formula or molecular formula but is optically or sterically different therefrom.
  • D type optical isomer and L type optical isomer can be present in the Formula 1 , depending on the R 3 -R 8 types of substituents selected.
  • the term “compound of Formula 1 or 2” is intended to encompass a compound per se, and a pharmaceutically acceptable salt, prodrug, solvate and isomer thereof.
  • alkyl refers to an aliphatic hydrocarbon group.
  • the alkyl moiety may be a "saturated alkyl” group, which means that it does not contain any alkene or alkyne moieties.
  • the alkyl moiety may also be an "unsaturated alkyl” moiety, which means that it contains at least one alkene or alkyne moiety.
  • alkene refers to a group in which at least two carbon atoms form at least one carbon-carbon double bond
  • alkyne refers to a group in which at least two carbon atoms form at least one carbon-carbon triple bond.
  • the alkyl moiety regardless of whether it is substituted or unsubstituted, may be branched, linear or cyclic.
  • aryl refers to an aromatic substituent group which has at least one ring having a conjugated pi ( ⁇ ) electron system and includes both carbocyclic aryl (for example, phenyl) and heterocyclic aryl(for example, pyridine) groups. This term includes monocyclic or fused-ring polycyclic (i.e., rings which share adjacent pairs of carbon atoms) groups.
  • heteroaryl refers to an aromatic group that contains at least one heterocyclic ring.
  • aiyl or heteroaryl include, but are not limited to, phenyl, furan, pyran, pyridyl, pyrimidyl and triazyl.
  • R 1 , R 2 , R3, R 4 , R5, R5, R7 and Rs in Formula 1 or 2 in accordance with the present invention may be optionally substituted.
  • the substituent group(s) is(are) one or more group(s) individually and independently selected from cycloalkyl, aryl, heteroaryl, heteroalicyclic, hydroxy, alkoxy, aryloxy, mercapto, alkylthio, arylthio, cyano, halogen, carbonyl, thiocarbonyl, O-carbamyl, N carbamyl, O-thiocarbamyl, N-tbiocarbamyl, C-amido, N-amido, S- sulfonarnido, N-sulfonamido, C-carboxy, 0-carboxy, isocyanato, Ihiocyanato, isothiocyanato, nitro, silyl, trihalomethatiesulfonyl, and amino including
  • Compounds of Formula 3 are compounds wherein n is 0 and adjacent carbon atoms form a cyclic structure (furan ring) via a direct bond therebetween and are often referred to as “furan compounds” or “fUrano-o-naphthoquinone derivatives” hereinafter.
  • Compounds of Formula 4 are compounds wherein n is 1 and are often referred to as “pyran compounds” or “pyrano-o-naphthoquinone” hereinafter.
  • each of Ri and R 2 is particularly preferably hydrogen.
  • furan compounds of Formula 3 particularly preferred are compounds of
  • pyran compounds of Formula 4 particularly preferred is compounds of Formula 4a wherein R 1 , R 2 , R 5 , R 6 , R 7 and R 8 are hydrogen or compounds of Formula 4b or 4c wherein R 1 and R 2 are taken together to form a cyclic structure which is substituted or unsubstituted.
  • Compounds of Formula 2a are compounds wherein n is 0 and adjacent carbon atoms form a cyclic structure via a direct bond therebetween and Y is C.
  • Compounds of Formula 2b are compounds wherein n is 1 and Y is C.
  • R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7> R 8 and X are as defined in Formula 2.
  • composition means a mixture of the compound of Formula 1 or 2 with other chemical components, such as diluents or carriers.
  • the pharmaceutical composition facilitates administration of the compound to an organism.
  • Various techniques of administering a compound are known in the art and include, but are not limited to oral, injection, aerosol, parenteral and topical administrations.
  • Pharmaceutical compositions can also be obtained by reacting compounds of interest with acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid, methanesulfonic acid, p-toluenesulfonic acid, salicylic acid and the like.
  • the effective ingredients, therapeutically effective for the treatment and prevention of restenosis include all the compounds of Fomula in the above, referring "active ingredient” hereafter.
  • the term "therapeutically effective amount” means an amount of an active ingredient that is effective to relieve or reduce to some extent one or more of the symptoms of the disease in need of treatment, or to retard initiation of clinical markers or symptoms of a disease in need of prevention, when the compound is administered.
  • a therapeutically effective amount refers to an amount of the active ingredient which exhibit effects of (i) reversing the rate of progress of a disease; ( ⁇ ) inhibiting to some extent further progress of the disease; and/or, ( ⁇ i) relieving to some extent (or, preferably, eliminating) one or more symptoms associated with the disease.
  • the therapeutically effective amount may be empirically determined by experimenting with the compounds concerned in known in vivo and in vitro model systems for a disease in need of treatment.
  • compounds of Formula 1 or 2 as an active ingredient can be prepared by conventional methods known in the art and/or various processes which are based upon the general technologies and practices in the organic chemistry synthesis field.
  • the preparation processes described below are only exemplary ones and other processes can also be employed. As such, the scope of the instant invention is not limited to the following processes.
  • Tricyclic naphthoquinone (pyrano-o-naphthoquinone and furano-o-naphthoquinone) derivatives having a relatively simple chemical structure are generally synthesized in a relatively high yield via cyclization using sulfuric acid as a catalyst, Based on this process, a variety of compounds of Formula 1 can be synthesized. More specifically, the above synthesis process may be summarized as follows.
  • C-alkylated derivatives thus obtained may be subjected to cyclization using sulfuric acid as a catalyst, thereby being capable of synthesizing pyrano-o-naphthoquinone or furano-o-naphthoquinone derivatives among compounds of Formula
  • Preparation method 2 Diels-Alder reaction using 3-methylene-l ,2,4-r3H1naphthalenetrione
  • a variety of pyrano-o-naphthoquinone derivatives can be relatively easily synthesized by subjecting 3- methylene-l,2,4-[3H]naphthalenetrione, produced upon heating 2-hydroxy-l,4-naphthoquinone and formaldehyde together, to Diels-Alder reaction with various olefin compounds.
  • This method is advantageous in that various forms of pyrano-o-naph1ho-quinone derivatives can be synthesized in a relatively simplified manner, as compared to induction of cyclization using sulfuric acid as a catalyst.
  • 2-hydroxy-l,4-naphthoquinone which is then subjected to cycuzation under suitable acidic catalyst conditions to synthesize various pyrano-o-naphthoquinone or furano-o-naphthoquinone derivatives.
  • the pharmaceutical composition of the present invention may be manufactured in a manner that is itself known, e.g., by means of conventional mixing, dissolving, granulating, dragee- making, levigating, emulsifying, encapsulating, entrapping or lyophilizing processes.
  • the pharmaceutical composition of the present invention may include additionally a pharmaceutically acceptable carrier, a diluent or an excipient, or any combination thereof.
  • Pharmaceutical compositions for use in accordance with the present invention thus may be formulated in a conventional manner using one or more pharmaceutically acceptable carriers comprising excipients and auxiliaries which facilitate processing of the active compounds into preparations which can be used pharmaceutically.
  • the pharmaceutical composition facilitates administration of the compound to an organism.
  • carrier means a chemical compound that facilitates the incorporation of a compound into cells or tissues.
  • DMSO dimethyl sulfoxide
  • carrier facilitates the uptake of many organic compounds into the cells or tissues of an organism.
  • diot defines chemical compounds diluted in water that will dissolve the compound of interest as well as stabilize the biologically active form of the compound. Salts dissolved in buffered solutions are utilized as diluents in the art.
  • buffer solution is phosphate buffered saline (PBS) because it mimics the ionic strength conditions of human body fluid. Since buffer salts can control the pH of a solution at low concentrations, a buffer diluent rarely modifies the biological activity of a compound.
  • the compounds described herein may be administered to a human patient per se, or in the form of pharmaceutical compositions in which they are mixed with other active ingredients, as in combination therapy, or suitable carriers or excipient(s). Techniques for formulation and administration of the compounds may be found in "Remington's Pharmaceutical Sciences," Mack
  • compositions can also be obtained by reacting compounds of interest with acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid, methanesulfbnic acid, p-toluenesulfonic acid, salicylic acid and the like.
  • acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid, methanesulfbnic acid, p-toluenesulfonic acid, salicylic acid and the like.
  • the pharmaceutical composition of the present invention for oral administration is preferably prepared into intestine-targeted formulation.
  • the intestine-targeted formulation according to the present invention is configured such that the active ingredient is largely absorbed in the small and large intestines, more preferably in the jejunum, and the ileum and colon corresponding to the lower small intestine, particularly preferably in the ileum or colon.
  • the intestine-targeted formulation may be designed by taking advantage of numerous physiological parameters of the digestive tract, through a variety of methods.
  • the intestine-targeted formulation may be prepared by (1) a formulation method based on a pH-sensitive polymer, (2) a formulation method based on a biodegradable polymer which is decomposable by an intestine-specific bacterial enzyme, (3) a formulation method based on a biodegradable matrix which is decomposable by an intestine- specific bacterial enzyme, or (4) a formulation method which allows release of a drug after a given lag time, and any combination thereof.
  • the pH-sensitive polymer may be added by a coating process.
  • addition of the polymer may be carried out by mixing the polymer in a solvent to form an aqueous coating suspension, spraying the resulting coating suspension to form a film coating, and drying the film coating.
  • the intestine-targeted formulation (2) using the biodegradable polymer which is decomposable by the intestine-specific bacterial enzyme is based on the utilization of a degradative ability of a specific enzyme that can be produced by enteric bacteria.
  • the specific enzyme may include azoreductase, bacterial hydrolase glycosidase, esterase, polysaccharidase, and the like.
  • the biodegradable polymer may be a polymer containing an azoaromatic linkage, for example, a copolymer of styrene and hydroxyethylmethacrylate (HEMA).
  • HEMA hydroxyethylmethacrylate
  • the active ingredient may be liberated into the intestine by reduction of an azo group of the polymer via the action of the azoreductase which is specifically secreted by enteric bacteria, for example, Bacteroides fragilis and Eubacteriwn limosum.
  • the biodegradable polymer may be a naturally-occurring polysaccharide or a substituted derivative thereof.
  • the biodegradable polymer may be at least one selected from the group consisting of dextran ester, pectin, amylase, ethyl cellulose and a pharmaceutically acceptable salt thereof.
  • the active ingredient may be liberated into the intestine by hydrolysis of the polymer via the action of each enzyme which is specifically secreted by enteric bacteria, for example, Bifidobacteria and Bacteroides spp. These polymers are natural materials, and have an advantage of low risk of in vivo toxicity.
  • the intestine-targeted formulation (3) using the biodegradable matrix which is decomposable by an intestine-specific bacterial enzyme may be a form in which the biodegradable polymers are cross-linked to each other and are added to the active ingredient or the active ingredient-containing formulation.
  • the biodegradable polymer may include naturally- occurring polymers such as chondroitin sulfate, guar gum, chitosan, pectin, and the like.
  • the degree of drug release may vary depending upon the degree of cross-linking of the matrix-constituting polymer.
  • the biodegradable matrix may be a synthetic hydrogel based on N-substituted acrylamide.
  • a hydrogel synthesized by cross-linking of N-tert-butylacryl amide with acrylic acid or copolymerization of 2- hydroxyethyl methacrylate and 4-methacryloyloxyazobenzene as the matrix.
  • the cross-linking may be, for example an azo linkage as mentioned above, and the formulation may be a form where the density of cross-linking is maintained to provide the optimal conditions for intestinal drug delivery and the linkage is degraded to interact with the intestinal mucous membrane when the drug is delivered to the intestine.
  • the delayed-release formulation may have a configuration in which the formulation absorbs water and then swells while it stays within the stomach and the upper digestive tract of the small intestine, upon addition of a hydrogel having the above-mentioned composition after applying the drug to an insoluble polymer, and then migrates to the lower part of the small intestine which is the lower digestive tract and liberates the drug, and the lag time of drug is determined depending upon a length of the hydrogel.
  • ethyl cellulose may be used in the delayed- release dosage formulation.
  • EC is an insoluble polymer, and may serve as a factor to delay a drug release time, in response to swelling of a swelling medium due to water penetration or changes in the internal pressure of the intestines due to a peristaltic motion.
  • the lag time may be controlled by the thickness of EC.
  • hydroxypr ⁇ pylmethyl cellulose (HPMC) may also be used as a retarding agent that allows drug release after a given period of time by thickness control of the polymer, and may have a lag time of 5 to 10 hours.
  • the active ingredient may have a crystalline structure with a high degree of crystallinity, or a crystalline structure with a low degree of crystallinity.
  • the active ingredient may have a crystalline structure with a low degree of crystallinity, which can solve the problems associated with sparingly- solubility in the compound of Formula 1 or 2, and increase the dissolution rate and in vivo absorption rate.
  • degree of crystallinity is defined as the weight fraction of the crystalline portion of the total compound and may be determined by a conventional method known in the art.
  • measurement of the degree of crystallinity may be carried out by a density method or precipitation method which calculates the crystallinity degree by previous assumption of apreset value obtained by addition and/or reduction of appropriate values to/from each density of the crystalline portion and the amorphous portion, a method involving measurement of the heat of fusion, an X-ray method in which the crystallinity degree is calculated by separation of the crystalline diffraction fraction and the noncrystalline diffraction fraction from X-ray diffraction intensity distribution upon X-ray diffraction analysis, or an infrared method which calculates the crystallinity degree from a peak of the width between crystalline bands of the infrared absorption spectrum.
  • the crystallinity degree of the active ingredient is preferably 50% or less. More preferably, the active ingredient may have an amorphous structure from which the intrinsic crystallinity of the material was completely lost.
  • the amorphous compound exhibits a relatively high solubility, as compared to the crystalline compound, and can significantly improve a dissolution rate and in vivo absorption rate of the drug.
  • the amorphous structure may be formed during preparation of the active ingredient into microparticles or fine particles (micronization of the active ingredient).
  • the microparticles may be prepared, for example by spray drying of active ingredients, melting methods involving formation of melts of active ingredients with polymers, co- precipitation involving formation of co-precipitates of active ingredients with polymers after dissolution of active ingredients in solvents, inclusion body formation, solvent volatilization, and the like. Preferred is spray drying.
  • micronization of the active ingredient into fine particles via mechanical milling contributes to improvement of solubility, due to a large specific surface area of the particles, consequently resulting in improved dissolution rate and bioabsorption rate of the active drug.
  • the spray drying is a method of making fine particles by dissolving the active ingredient in a certain solvent and the spray-drying the resulting solution. During the spray-drying process, a high percent of the crystallinity of the compound is lost to thereby result in an amorphous state, and therefore the spray-dried product in the form of a fine powder is obtained.
  • the mechanical milling is a method of grinding the active ingredient into fine particles by applying strong physical force to active ingredient particles.
  • the mechanical milling may be carried out by using a variety of milling processes such as jet milling, ball milling, vibration milling, hammer milling, and the like. Particularly preferred is jet milling which can be carried out using an air pressure, at a temperature of less than 40 ° C .
  • the particle diameter of the active ingredient may be in a range of 5 nm to 500 jm In this range, the particle agglomeration or aggregation can be maximally inhibited, and the dissolution rate and solubility can be maximized due to a high specific surface area of the particles.
  • a surfactant may be additionally added to prevent the particle agglomeration or aggregation which may occur during formation of the fine particles, and/or an antistatic agent may be additionally added to prevent the occurrence of static electricity.
  • a moisture-absorbent material may be further added during the milling process.
  • the compound of Formula 1 or 2 has a tendency to be crystallized by water, so incorporation of the moisture-absorbent material inhibits recrystallization of the compound over time and enables maintenance of increased solubility of compound particles due to micronization.
  • the moisture-absorbent material serves to suppress coagulation and aggregation of the pharmaceutical composition while not adversely affecting therapeutic effects of the active ingredient.
  • the surfactant may include, but are not limited to, anionc surfactants such as docusate sodium and sodium lauryl sulfate; cationic surfactants such as benzalkonium chloride, benzethonium chloride and cetrimide; nonionic surfactants such as glyceryl monooleate, polyoxyethylene sorbitan fatty acid ester, and sorbitan ester; amphiphilic polymers such as polyethylene-polypropylene polymer and polyoxyethylene-polyoxypropylene polymer (Poloxamer), and GelucireTM series (Gattefosse Corporation, USA); propylene glycol monocaprylate, oleoyl macrogol-6-glyceride, linoleoyl macrogol-6-glyceride, caprylocaproyl macrogol-8-glyceride, propylene glycol monolaurate, and polyglyceryl-6-dioleate. These materials may be used alone or in any combination thereof.
  • moisture-absorbent material may include, but are not limited to, colloidal silica, light anhydrous silicic acid, heavy anhydrous silicic acid, sodium chloride, calcium silicate, potassium aluminosilicate, calcium aluminosilicate, and the like. These materials may be used alone or in any combination thereof.
  • moisture absorbents may also be used as the antistatic agent.
  • the surfactant, antistatic agent, and moisture absorbent are added in a certain amount that is capable of achieving the above-mentioned effects, and such an amount may be appropriately adjusted depending upon micronization conditions.
  • the additives may be used in a range of 0.05 to 20% by weight, based on the total weight of the active ingredient.
  • the water-soluble polymer is of help to prevent aggregation of the particulate active ingredients, by rendering surroundings of compound molecules or particles of Formula 1 or 2 hydrophilic to consequently enhance water solubility, and preferably to maintain the amorphous state of the naphtoquinone-based compound as an active ingredient.
  • the water-soluble polymer is a pH-independent polymer, and can bring about crystallinity loss and enhanced hydrophilicity of the active ingredient, even under the between- and within-individual variation of the gastrointestinal pH.
  • Preferred examples of the water-soluble polymers may include at least one selected from the group consisting of cellulose derivatives such as methyl cellulose, hydroxyrnethyl cellulose, hydroxyethyl cellulose, ethyl cellulose, hydroxyethylmethyl cellulose, carboxymethyl cellulose, hydroxypropylmethyl cellulose, hydroxypropylmethyl cellulose phthalate, sodium carboxymethyl cellulose, and carboxymethylethyl cellulose; polyvinyl alcohols; polyvinyl acetate, polyvinyl acetate phthalate, polyvinylpyrrolidone (PVP), and polymers containing the same; polyalkene oxide or polyalkene glycol, and polymers containing the same. Preferred is hydroxypropylmethyl cellulose.
  • an excessive content of the water-soluble polymer which is higher than a given level provides no further increased solubility, but disadvantageously brings about various problems such as overall increases in the hardness of the formulation, and non-penetration of an eluent into the formulation, by formation of films around the formulation due to excessive swelling of water-soluble polymers upon exposure to the eluent
  • the solubilizer is preferably added to maximize the solubility of the formulation by modifying physical properties of the compound of Formula 1 or 2.
  • the solubilizer serves to enhance solubilization and wettability of the sparingly-soluble compound of Formula 1 or 2, and can significantly reduce the bioavailability variation of the compound of Formula 1 or 2 originating from diets and the time difference of drug administration after dietary uptake.
  • the solubilizer may be selected from conventionally widely used surfactants or amphiphiles, and specific examples of the solubilizer may refer to the surfactants as defined above.
  • the disintegration-promoting agent serves to improve the drug release rate, and enables rapid release of the drug at the target site to thereby increase bioavailability of the drug.
  • Preferred examples of the disintegration-promoting agent may include, but are not limited to, at least one selected from the group consisting of Croscarmellose sodium, Crospovidone, calcium carboxymethylcellulose, starch glycolate sodium and lower substituted hydroxypropyl cellulose. Preferred is Croscarmellose sodium.
  • the solvent for spray drying is a material exhibiting a high solubility without modification of physical properties thereof and easy volatility during the spray drying process.
  • Preferred examples of such a solvent may include, but are not limited to, dichloromethane, chloroform, methanol, and ethanol. These materials may be used alone or in any combination thereof.
  • a content of solids in 1he spray solution is in a range of 5 to 50% by weight, based on the total weight of the spray solutioa
  • the above-mentioned intestine-targeted formulation process may be preferably carried out for formulation particles prepared as above.
  • the oral pharmaceutical composition according to the present invention may be formulated by a process comprising the following steps: (a) adding the compound of Formula 1 or 2 alone or in combination with a surfactant and a moisture-absorbent material, and grinding the compound of Formula 1 or 2 with a jet mill to prepare active ingredient microparticles;
  • the surfactant, moisture-absorbent material, water-soluble polymer, solubilizer and disintegration-promoting agent are as defined above.
  • the plasticizer is an additive added to prevent hardening of the coating, and may include, for example polymers such as polyethylene glycol.
  • formulation of the active ingredient may be carried out by sequential or concurrent spraying of vehicles of Step (b) and intestine-targeted coating materials of Step (c) onto jet-milled active ingredient particles of Step (a) as a seed.
  • the agents of the present invention may be formulated in aqueous solutions, preferably in physiologically compatible buffers such as Hanks's solution, Ringer's solution, or physiological saline.
  • physiologically compatible buffers such as Hanks's solution, Ringer's solution, or physiological saline.
  • penetrants appropriate to the barrier to be permeated are used in the formulation. Such penetrants are generally known in the art.
  • the compounds may be formulated for parenteral administration by injection, e.g., by bolus injection or continuous infusion.
  • Formulations for injection may be presented in unit dosage forms, e.g., in ampoules or in multi-dose containers, with an added preservative.
  • the compositions may take such forms as suspensions, solutions or emulsions in oily or aqueous vehicles, and may contain formulatory agents such as suspending, stabilizing and/or dispersing agents.
  • the active ingredient may be in powder form for constitution with a suitable vehicle, e.g., sterile pyrogen-free water, before use.
  • a suitable vehicle e.g., sterile pyrogen-free water
  • the pharmaceutical composition in accordance with the present invention may be prepared or added into a common tablet form, as well as various forms capable of delivering the active ingredients to the disease region.
  • the composition may be added by being coated on or embedded in a mesh stent to be inserted in blood vessels.
  • the stent is commonly inserted by a surgical operation to regulate blood or body fluid flow in vessels, gastrointestinal tracts, biliary tracts or the like. It is a mesh-like material made of a stainless steel, a shape memory alloy, nitinol (Ti-Ni) or the like.
  • the pharmaceutical composition in accordance with the present invention may be applied to the disease region through being directly coated on or attached via a predetermined binder to the outer surface of the stent, or embedded in the stent in a form capable of discharging outward.
  • a predetermined binder to the outer surface of the stent, or embedded in the stent in a form capable of discharging outward.
  • compositions suitable for use in the present invention include compositions in which the active ingredients are contained in an amount effective to achieve its intended purpose. More specifically, a therapeutically effective amount means an amount of compound effective to prevent, alleviate or ameliorate symptoms of disease or prolong the survival of the subject being treated. Determination of a therapeutically effective amount is well within the capability of those skilled in the art, especially in light of the detailed disclosure provided herein.
  • the compound of Formula 1 or 2 as the active ingredient is preferably contained in a unit dose of about 0.1 to 1,000 mg.
  • the amount of the compound of Formula 1 or 2 administered will be determined by the attending physician, depending upon body weight and age of patients being treated, characteristic nature and the severity of diseases.
  • the present invention also provides use of the compound of Formula 1 or 2 in the preparation of a drug for preventing and treating of restenosis.
  • treatment refers to stopping or delaying of the disease progress, when the drug is used in the subject exhibiting symptoms of disease onset.
  • prevention refers to stopping or delaying of symptoms of disease onset, when the drug is used in the subject exhibiting no symptoms of disease onset but having high risk of disease onset.
  • FIG. 1 is a bar graph showing counting results on numbers of living cells after pre- treatment with Compound 1 according to the present invention by varying the concentration
  • FIG. 2 is a result of RT-PCR confirming expression of NQOl in vascular smooth muscle cells treated with Compound 1 according to the present invention
  • FIG. 3 is a result confirming a degree of phosphorylation of AMPK and ACC in vascular smooth muscle cells treated with Compound 1 according to the present invention
  • FIG.4 is a result confirming expressions of p53, p21, retinoblastoma and CDK in vascular smooth muscle cells treated with Compound 1 according to the present invention.
  • FIG. 5 is a result confirming inhibition of cell proliferation in vascular smooth muscle cells treated with Compound 1 according to Ihe present invention.
  • FIG. 6 is an observation result of vessel intimal hyperplasia in rats with administration of Compound 1 according to the present invention.
  • FIG. 7 is a comparison/observation result a degree of lipid accumulation on inner vessel wall and aortic valve after staining with Oil Red O by killing rats with administration of Compound 1 according to the present invention.
  • Example 1 Synthesis of ⁇ -lapachone (Compound 1 * ) 17.4 g (0.10M) of 2-hydroxy-l,4-naphthoquinone was dissolved in 120 ml of DMSO, and 0.88 g (0.1 IM) of LiH was gradually added thereto. Here, this should be done with care because hydrogen evolves. The reaction solution was stirred, and after confirming no further production of hydrogen, was additionally stirred for another 30 min. Then, 15.9 g (0.10M) of prenyl bromide (1- bromo-3-methyl-2-butene) and 3.35 g (0.025M) of LiI were gradually added thereto. The reaction solution was heated to 45 ° C and then stirred vigorously for 12 hours at that temperature.
  • the reaction solution was cooled below 10 ° C, and 76 g of ice was first added and 250 ml of water was then added. Thereafter, 25 ml of concentrated HCl was gradually added to maintain the resulting solution at an acidic pH>l. 200 ml of EtOAc was added to the reaction mixture which was then stirred vigorously, thereby producing white solids that were not dissolved in EtOAc. These solids were filtered and an EtOAc layer was separated. The aqueous layer was extracted once again with 100 ml of EtOAc and was combined with the previously extracted organic layer. The organic layer was washed with 150 ml of 5% NaHCO 3 , and was concentrated.
  • the resulting concentrates were dissolved in 200 ml OfCH 2 Cl 2 , and were vigorously shaken to separate two layers with addition of 70 ml of an aqueous 2N NaOH solution.
  • a CH 2 Cl 2 layer was further separated twice with treatment of an aqueous 2N NaOH solution (70 ml x 2).
  • the thus-separated aqueous solutions were combined together and adjusted to an acidic pH > 2, thereby forming solids.
  • the resulting solids were filtered and separated to give Lapachol.
  • the thus-obtained Lapachol was recrystallized from 75% EtOH.
  • the resulting Lapachol was mixed with 80 ml of sulfuric acid, and the mixture was vigorously stirred at room temperature for 10 min and 200 g of ice was added thereto to complete the reaction. 60 ml OfCH 2 Cl 2 was added to the reaction materials which were then shaken vigorously. Thereafter, a CH 2 Cl 2 layer was separated and washed with 5% NaHCO 3 . An aqueous layer was extracted once again using 30 ml of CH 2 Cl 2 , washed with 5% NaHCO 3 and combined with the previously extracted organic layer. The organic layer was dried over MgSO 4 and concentrated to give impure ⁇ - Lapachone. The thus-obtained ⁇ -Lapachone was reciystallized from isopropanol, thereby obtaining 8.37 g of pure ⁇ -Lapachone.
  • the reaction solution was cooled below 10 ° C, and 80 g of ice was first added and 250 ml of water was then added. Thereafter, 25 ml of concentrated HCl was gradually added to maintain the resulting solution at an acidic pH >1.
  • 200 ml of CH 2 CI 2 was added to the reaction mixture which was then shaken vigorously to separate two layers.
  • the aqueous layer was extracted once again with addition of 70 ml of CH 2 Cl 2 and was combined with the previously extracted organic layer. Two materials were confirmed to be formed newly by TLC and were subsequently used without any particular separation process.
  • the organic layer was concentrated by distillation under reduced pressure, dissolved again in xylene and then refluxed for 8 hours.
  • Lapachol derivative was mixed with 80 ml of sul&ric acid and stirred vigorously at room temperature for 10 min, and 200 g of ice was added thereto to complete the reaction. 80 ml of CH 2 Cl 2 was added to the reaction materials which were then shaken vigorously. Thereafter, a CH 2 Cl 2 layer was separated and washed with 5% NaHCO 3 . An aqueous layer was extracted once again using 50 ml of CH 2 Cl 2 , washed with 5% NaHCO 3 and combined with the previously extracted organic layer.
  • Compound 5 was obtained in the same manner as in Example 4, except that allyl bromide was used instead of methallyl bromide.
  • the reaction solution was cooled below 10 ° C, and 80 g of ice was first added and 250 ml of water was then added. Thereafter, 25 ml of concentrated HCl was gradually added to maintain the resulting solution at an acidic pH > 1.200 ml of CH 2 Cl 2 was added to dissolve the reaction mixture which was then shaken vigorously to separate two layers. The aqueous layer was discarded, and a CH 2 Cl 2 layer was treated with an aqueous 2N NaOH solution (100 ml> ⁇ 2) to separate the aqueous layer twice. At this time, the remaining CH 2 Cl 2 layer after extraction with an aqueous 2N NaOH solution was used again in Example 8.
  • the thus-separated aqueous solutions were combined and adjusted to an acidic pH >2 using concentrated HCl, thereby forming solids.
  • the resulting solids were filtered and separated to give a Lapachol derivative.
  • the thus-obtained Lapachol derivative was recrystallizied from 75% EtOH.
  • the resulting Lapachol derivative was mixed with 50 ml of sulfuric acid, and the mixture was vigorously stirred at room temperature for 10 rnin and 150 g of ice was added thereto to complete the reaction. 60 ml of CH 2 Cl 2 was added to the reaction materials which were then shaken vigorously. Thereafter, a CH 2 Cl 2 layer was separated and washed with 5% NaHCO 3 .
  • Example 8 Synthesis of Compound 8
  • the resulting concentrates were dissolved in 30 ml of xylene, followed by reflux for 10 hours to induce Claisen Rearrangement.
  • Xylene was concentrated by distillation under reduced pressure and was then mixed with 15 ml of sulfuric acid, without further purification.
  • the resulting mixture was stirred vigorously at room temperature for 10 min and 100 g of ice was added thereto to complete the reaction. 50 ml of CH 2 Cl 2 WaS added to the reaction materials which were shaken vigorously. Thereafter, a CH 2 Cl 2 layer was separated and washed with 5% NaHCO 3 .
  • Example 14 Synthesis of Compound 14 5.3 g (30 mM) of 2-hydroxy-l,4-naphthoquinone, 20.4 g (150 mM) of 2,6-dimethyl- 2,4,6-octatriene and 9.0 g (300 mM) of paraformaldehyde were dissolved in 50 ml of 1,4-dioxane, and the resulting mixture was refluxed with vigorous stirring for 10 hours. The reaction vessel was cooled to room temperature, and contents therein were filtered to remove paraformaldehyde from solids. The filtrate was concentrated by distillation under reduced pressure and was then purified by chromatography on silica gel to give 1.18 g of Compound 14, as a ⁇ -Lapachone derivative.
  • the thus-obtained Lapachol derivative was recrystallized from 75% EtOH.
  • the resulting Lapachol derivative was mixed with 50 ml of sulfide acid, and the mixture was vigorously stirred at room temperature for 10 min, followed by addition of 150 g of ice to complete the reaction.
  • 60 ml of CH 2 Cl 2 was added to the reaction materials which were then shaken vigorously. Thereafter, a CH 2 Cl 2 layer was separated and washed with 5% NaHCO 3 .
  • An aqueous layer was extracted once again using 30 ml of CH 2 Cl 2 , washed with 5% NaHCO 3 and combined with the previously extracted organic layer.
  • the thus-obtained product was mixed with 50 ml of sulfuric acid without further purification, and the mixture was vigorously stirred at room temperature for 10 min, followed by addition of 150 g of ice to complete the reaction. 60 ml of CH 2 Cl 2 was added to the reaction materials which were then shaken vigorously. Thereafter, a CH 2 Cl 2 layer was separated and washed with 5% NaHCO 3 . An aqueous layer was extracted once again using 30 ml OfCH 2 Cl 2 , washed with 5% NaHCO 3 and combined with the previously extracted organic layer. The organic layer was concentrated and purified by chromatography on silica gel to give 3.62 g of pure Compound 20.
  • Compound 22 was obtained in the same manner as in Example 1, except that 2-hydroxy- 6-methyl-l,4-naphthoquinone was used instead of 2-hydroxy-l ,4-naphthoquinone.
  • Example 21 Synthesis of Compound 23
  • Compound 23 was obtained in the same manner as in Example 1, except that 6,7- dimethoxy-2-hydroxy-l,4-naphthoquinone was used instead of 2-hydroxy-l,4-naphthoquinone.
  • Compound 24 was obtained in the same manner as in Example 1 , except that 1 -bromo-3- methyl-2-pentene was used instead of l-bromo-3-methyl-2-butene.
  • Compound 25 was obtained in the same manner as in Example 1, except that l-bromo-3- ethyl-2-pentene was used instead of l-bromo-3-methyl-2-butene.
  • Compound 28 was obtained in the same manner as in Example 1, except that 2-bromo- ethylidenecyclopentane was used instead of 1 -bromo-3-methyl-2-butene.
  • vascular smooth muscle cells were isolated from rat aorta and they were primarily cultured.
  • the vascular smooth muscle cells were cultured and grown in a culture solution containing 20% fetal bovine serum (FBS) at 37 ° C under 5% CO 2 .
  • FBS fetal bovine serum
  • the cells obtained in this process were transferred to a new culture plate for experiments.
  • the cells used in the experiments were initial cells which had been subcultured 4 to 7 times.
  • the vascular smooth muscle cells when the cell mass reached 80 to 90%, were cultured in a medium containing 0.5% fetal bovine serum for 24 hours to keep the cells in the resting state.
  • Such cells were treated with the compound of Example 1 (hereinafter, referred to as Compound 1).
  • vascular smooth muscle cells Primary cultures of vascular smooth muscle cells were seeded onto 96-well plates, cultured to reach cell mass of 70%, and transferred and again cultured in a medium containing 0.5% fetal bovine serum for 24 hours. Then, the cells were kept in the resting state. Thereafter, the cells were treated with platelet derived growth factor (PDGF) and Compound 1, and reacted at 37 ° C for 48 hours. Hereto, a reagent for confirming cell proliferation was treated. After further reacting for 4 hours, absorbencies were measured at 450 nm using an ELISA reader to examine the cell proliferation rate.
  • PDGF platelet derived growth factor
  • vascular smooth muscle cells collected after reacting with Compound 1 were lysed in RIPA buffer (50 mM Tris-HCl, 150 mM NaCl, 5 mM EDTA, 1% NP-40, 1 mM PMSF, 1 mM
  • the boiled proteins were cooled and subjected to electrophoresis on a sodium dodecyl sulfate polyacrylamide gel, thereby separating the proteins by their sizes. These proteins were again transferred to PVDF membrane and immunoreacted with antibodies against pAMPK, pACC, p53, p21, CDK and pRb to confirm the protein expression. In addition, in order to verify whether an equal amount of protein was used, the proteins were reacted with anti- ⁇ -actin.
  • FACS fluorescence Activated Cell Sorting
  • SD rats were used for performing balloon angioplasty.
  • Animals were housed in a breeding room maintained at a constant temperature of 22+2 0 C and a 12- h light/dark (L/D) cycle.
  • the animals were divided into two groups, Ie., a control group with administration of general diet and an experiment group with administration of 100 mg/kg of Compound 1, having 4 animals in each group.
  • the 4 animals in each group were raised in separate cages for each animal for 4 weeks, during which experiments were carried out.
  • the animals were raised for 2 weeks before performing balloon angioplasty and 2 weeks after performing balloon angioplasty while continuing the dietary intake of the general diet and Compound 1 diet. Thereafter, their aortas were isolated to confirm hyoerplasia by means of H&E (hematoxylin and eosin) staining.
  • H&E hematoxylin and eosin
  • the animals were killed to isolate their hearts and abdominal aortas, and they were fixed in 4% formalin, respectively.
  • the fixed heart tissue was immersed in an isotonic sucrose solution, and then stored in a freezer by embedding in an OCT compound. Meanwhile, the fixed abdominal aorta was incised lengthwise and prepared such that the internal vessel was exposed.
  • the frozen heart tissue was sectioned into a thickness of 20 ⁇ m and attached onto a coating slide, while the abdominal aorta was immersed in an Oil Red O solution to perform Oil Red O staining, and they were observed.
  • Experimental Example 1 Effects of Compound 1 on Vascular Smooth Muscle Cell Proliferation
  • the cells cultured in a 96-well plate were kept in the resting state, followed by pre- treating them with Compound 1 by varying the concentration, and by reacting them with PDGF for 48 hours.
  • the number of living cells was counted using a WST cell counting kit. The number was counted in 3 or more independent experiments to calculate the mean number.
  • FIG. 1 The results of the measurement on living cells are presented in FIG. 1.
  • the number of the vascular smooth muscle cells treated with PDGF and Compound 1 was significantly low compared with that treated only with PDGF. This number was similar to the cell number of the control group without the treatment of PDGF and Compound 1 (PDGF: -, Compound 1: -).
  • PDGF -, Compound 1: -
  • a degree of reduction of the number of vascular smooth muscle cells increased as the administration dose of Compound 1 increased.
  • the reduction in the number of vascular smooth muscle cells is concentration- dependent according to the Compound 1 administration.
  • Compound 1 shows efficacy of reducing the number of vascular smooth muscle cells.
  • Compound 1 is believed to have excellent effects on the treatment of restenosis or arteriosclerosis associated with fast increase in the number of vascular smooth muscle cells.
  • This Example was intended to investigate a mechanism of Compound 1 functioning as a therapeutic agent for restenosis, and the experiment is carried out as in the following.
  • the mechanism of Compound 1 functioning as a therapeutic agent of restenosis and arteriosclerosis is such that Compound 1 increases activities of NQOl and AMPK resulting in inhibition of vascular smooth muscle cell proliferation and decreases ACC activity resulting in inhibition of lipogenic activity.
  • FIG. 4A Primary cultures of vascular smooth muscle cells were treated with 0.5 ⁇ M of Compound 1. After reacting them for a predetermined period of time, the cells were collected to perform western blot. Expressions of p53 and p21 (FIG. 4A) and expressions of phospborylated retinoblastoma (RB) and cyclin dependent kinase (CDK) (FIG. 4B) were also confirmed with 25 mg of cell debris. The results were confirmed through three or more repeating experiments. The results are presented in FIG.4.
  • cyclin D when treating the proteins with Compound 1, CDK is activated through phosphorylation.
  • cyclin E when treating the proteins with Compound 1, CDK is activated through phosphorylation.
  • the expression levels of cyclin D, cyclin E, and cyclin B are all significantly low compared with those of the control group.
  • the cyclin D is known to serve an important role in initiating the cell cycle
  • cyclin E is known as an essential factor for Gl-S transition by being expressed at the last stage of Gl phase to bond with CDK2
  • cyclin B accelerates the progression of cell cycle to M phase.
  • Gl phase is a stage for determining whether cell proliferation has been inhibited or not.
  • increase in Gl phase implies that vascular smooth muscle cell proliferation is inhibited by the treatment with Compound 1 since Gl phase is not progressed to S phase. Therefore, it is confirmed that Compound 1 is effective for inhibition of vascular smooth muscle cell proliferation.
  • Compound 1 may be used as a composition for treatment of arteriosclerosis and restenosis associated with vascular smooth muscle cell proliferation.
  • a is a control group
  • b is a vessel intima after performing balloon angioplasty in the general dietary group
  • c is a vessel intima after performing balloon angioplasty in the 100 mg/kg of Compound 1 administration group
  • d is a control group in the 100 mg/ kg of Compound 1 administration group, without performing balloon angioplasty.
  • the general dietary group b shows restenosis due to intimal hyperplasia in the vessel after performing balloon angioplasty.
  • the Compound 1 administration group c shows sufficiently ensured blood flow way due to a low rate of intimal hyperplasia
  • the intima/media ratio of the general dietary group b is 2.5
  • the Compound 1 administration group c is 1, which is a far less value compared with the group b. This implies that the group c has significantly low rate of intimal hyperplasia. Therefore, it is believed that Compound 1 can be a therapeutically effective agent for resolving problems of restenosis induced by the intimal hyperplasia after performing a surgical operation on arteriosclerosis or 1he like.
  • A (upper part of FIG. 7) is an aortic valve and B (bottom part of FIG. 7) is an abdominal aorta.
  • the experiments were repeated three times to confirm the results. The results are presented in FIG.7.
  • the pharmaceutical composition of the present invention can function effectively on inhibition of rapid proliferation of vascular smooth muscle cells. Therefore, the composition has an excellent effect on substantial treatment and/or prevention of restenosis generated after surgical operation associated with vascular smooth muscle cell proliferation.
  • a pharmaceutical composition according to the present invention is effective in inhibition of vascular smooth muscle cell proliferation. Accordingly, a pharmaceutical composition according to the present invention is effective in fundamental prevention and treatment of restenosis generated after surgical operation associated with vascular smooth muscle cell proliferation.

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Abstract

La présente invention concerne une composition pharmaceutique destinée au traitement et/ou à la prévention de la resténose. Cette composition contient (a) une quantité suffisante d'un composé particulier représenté par les formules (I) et (II), ou l'un de leurs sels, promédicaments, solvates ou isomères pharmaceutiquement admis, et (b) un vecteur, un diluant ou un excipient pharmaceutiquement admis, ou l'une de leurs combinaisons.
PCT/KR2007/006011 2006-11-27 2007-11-26 Composition pharmaceutique pour le traitement et la prévention de la resténose WO2008066297A1 (fr)

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JP2009538339A JP2010510982A (ja) 2006-11-27 2007-11-26 再狭窄の治療および予防のための医薬組成物
US12/515,015 US20100255054A1 (en) 2006-11-27 2007-11-26 Pharmaceutical composition for treatment and prevention of restenosis
EP07834306A EP2099448A4 (fr) 2006-11-27 2007-11-26 Composition pharmaceutique pour le traitement et la prévention de la resténose

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Publication number Priority date Publication date Assignee Title
US10220113B2 (en) 2010-01-13 2019-03-05 Allergan Industrie, Sas Heat stable hyaluronic acid compositions for dermatological use
US11000626B2 (en) 2011-06-03 2021-05-11 Allergan Industrie, Sas Dermal filler compositions including antioxidants
EP3432713B1 (fr) * 2016-03-22 2023-06-14 Stepan Company Peracides non alpha substitués et leurs utilisations

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WO2005063232A1 (fr) * 2003-12-30 2005-07-14 Md Bioalpha Co., Ltd. Traitement de l'obesite et du syndrome metabolique avec des derives de tanshinone augmentant l'activite metabolique
WO2006088315A1 (fr) * 2005-02-16 2006-08-24 Md Bioalpha Co., Ltd. Composition pharmaceutique pour le traitement ou la prevention de pathologies comprenant l'obesite, le diabete, les syndromes metaboliques, les maladies neurodegeneratives, et les maladies liees a une dysfonction mitochondriale

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WO2005063232A1 (fr) * 2003-12-30 2005-07-14 Md Bioalpha Co., Ltd. Traitement de l'obesite et du syndrome metabolique avec des derives de tanshinone augmentant l'activite metabolique
WO2006088315A1 (fr) * 2005-02-16 2006-08-24 Md Bioalpha Co., Ltd. Composition pharmaceutique pour le traitement ou la prevention de pathologies comprenant l'obesite, le diabete, les syndromes metaboliques, les maladies neurodegeneratives, et les maladies liees a une dysfonction mitochondriale

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10220113B2 (en) 2010-01-13 2019-03-05 Allergan Industrie, Sas Heat stable hyaluronic acid compositions for dermatological use
US11000626B2 (en) 2011-06-03 2021-05-11 Allergan Industrie, Sas Dermal filler compositions including antioxidants
EP3432713B1 (fr) * 2016-03-22 2023-06-14 Stepan Company Peracides non alpha substitués et leurs utilisations

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