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WO2012007725A2 - Procédé de reprogrammation d'une cellule - Google Patents

Procédé de reprogrammation d'une cellule Download PDF

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Publication number
WO2012007725A2
WO2012007725A2 PCT/GB2011/001063 GB2011001063W WO2012007725A2 WO 2012007725 A2 WO2012007725 A2 WO 2012007725A2 GB 2011001063 W GB2011001063 W GB 2011001063W WO 2012007725 A2 WO2012007725 A2 WO 2012007725A2
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cell
inhibitor
cra
cimp
cells
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WO2012007725A3 (fr
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Yen Choo
Mylvaganam Jeyakumar
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Plasticell Ltd
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Publication of WO2012007725A2 publication Critical patent/WO2012007725A2/fr
Publication of WO2012007725A3 publication Critical patent/WO2012007725A3/fr

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    • C12N5/00Undifferentiated human, animal or plant cells, e.g. cell lines; Tissues; Cultivation or maintenance thereof; Culture media therefor
    • C12N5/06Animal cells or tissues; Human cells or tissues
    • C12N5/0602Vertebrate cells
    • C12N5/0696Artificially induced pluripotent stem cells, e.g. iPS
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    • C12N2501/00Active agents used in cell culture processes, e.g. differentation
    • C12N2501/065Modulators of histone acetylation
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    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
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    • C12N2501/00Active agents used in cell culture processes, e.g. differentation
    • C12N2501/30Hormones
    • C12N2501/38Hormones with nuclear receptors
    • C12N2501/385Hormones with nuclear receptors of the family of the retinoic acid recptor, e.g. RAR, RXR; Peroxisome proliferator-activated receptor [PPAR]
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    • C12N2501/00Active agents used in cell culture processes, e.g. differentation
    • C12N2501/40Regulators of development
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    • C12N2501/00Active agents used in cell culture processes, e.g. differentation
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    • C12N2501/48Regulators of apoptosis
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    • C12N2501/00Active agents used in cell culture processes, e.g. differentation
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    • C12N2501/71Oxidoreductases (EC 1.)
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    • C12N2501/00Active agents used in cell culture processes, e.g. differentation
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    • C12N2501/00Active agents used in cell culture processes, e.g. differentation
    • C12N2501/999Small molecules not provided for elsewhere
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    • C12N2506/00Differentiation of animal cells from one lineage to another; Differentiation of pluripotent cells
    • C12N2506/08Differentiation of animal cells from one lineage to another; Differentiation of pluripotent cells from cells of the nervous system
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    • C12N2506/00Differentiation of animal cells from one lineage to another; Differentiation of pluripotent cells
    • C12N2506/13Differentiation of animal cells from one lineage to another; Differentiation of pluripotent cells from connective tissue cells, from mesenchymal cells
    • C12N2506/1307Differentiation of animal cells from one lineage to another; Differentiation of pluripotent cells from connective tissue cells, from mesenchymal cells from adult fibroblasts

Definitions

  • said CIMP cell is expanded , preferably, wherein said expanded CIMP cell is a population of homogenous cells.
  • the one or more pluripotency genes that have been induced by the addition of one or more CRA(s) is selected from the group consisting of alkaline phosphatase (ALP), SSEA1 , Oct4 or Nanog or a combination of two or more thereof - such as ALP and SSEA1 ; ALP and Oct4; ALP and Nanog; ALP, SSEA1 and Oct4; ALP, SSEA1 and Nanog; SSEA1 , Oct4 and Nanog; Oct4, ALP and Nanog.
  • ALP alkaline phosphatase
  • genes have been found to be associated with pluripotency and include, but are not limited to, Oct3/4, Sox-2, HDAC1 1 , Klf-4, Myc, Lin28 and Nanog.
  • the CRA(s) may be placed in contact with the cell for at least about 1 hour, about 2 hours, about 4 hours, about 8 hours, about 16 hours, about 24 hours, about 36 hours, about 48 hours, about 60 hours, about 72 hours, about 84 hours, about 96 hours, about 108 hours or about 120 hours, suitably, at least about 24 to 72 hours, more suitably, at least about 48 to 72 hours, or more suitably, at least about 72 hours to induce CIMP cell formation.
  • one or more CRA(s) are contacted with a cell for about 24 hours, followed by an interval time of about 48 hours in the absence of CRA(s) used to reprogram the cells, followed by incubation with one or more (of the same or different) CRA(s) for about 24 hours, followed by an interval of about 48 hours without CRA(s) used to reprogram the cells, followed by incubation with one or more (of the same or different) CRA(s) for about 24 hours, followed by an interval time of about 48 hours in the absence of CRA(s) used to reprogram the cells.
  • Examples of chemicals for CIMP induction include but are not limited to Dexamethasone, Sinomenine, Flurbprofen, Theanine, 1 5d-PGJ2, Compound P, Ciglitazone, trans-2-Phenyl- cyclopropylamine (CPL), cyclic Pifithrin-a (PFT), 5-aza-2'-deoxycytidine, valproic acid, TTNPB, Y-27632, BIX01294, Phenytoin, Folic acid, Trichostatin A and/or Phenytoin and derivatives thereof or a combination of two or more thereof.
  • CPL trans-2-Phenyl- cyclopropylamine
  • PFT cyclic Pifithrin-a
  • 5-aza-2'-deoxycytidine 5-aza-2'-deoxycytidine
  • valproic acid TTNPB
  • Y-27632 Y-27632
  • BIX01294 Phenytoin
  • 5-aza-2'-deoxycytidine (5-AZA)
  • CRA(s) eg. all CRA(s)
  • the exposure in the presence of the chemicals may be for about 1 , 2 or 3 or more days at a time.
  • the exposure in the absence of the chemicals may be for about 1 , 2 or 3, 4,, 5 or 6 or more days at a time.
  • HDAC Inhibitor III M344
  • a PPAR gamma agonist eg. Ciglitazone
  • a retinoic acid receptor agonist eg. TTNPB
  • a caspase-3 Inhibitor eg. caspase-3 Inhibitor VII
  • a xanthine oxidase inhibitor eg. 3,5,7,8- tetrazabicyclo[4.3.0] nona-3,5,9-trien-2-one (allopurinol)
  • a H2 histamine receptor antagonist eg . Ranitidine
  • the method comprises contacting the cell with a combination of CRA(s) comprising, consisting or consisting essentially of a demethylating agent (eg. 5-aza-2'- deoxycytidine (5-AZA)); a KLF4 inducer (eg. 15d-PGJ2); an NADPH oxidase inhibitor (eg. Sinomenine) ; and a HDAC1 inhibitor (eg. valproic acid); incubating the cell in the absence of one or more CRA(s) (eg. all CRA(s)) for one or more days; contacting the cell with a combination of CRA(s) comprising, consisting or consisting essentially of a demethylating agent (eg.
  • a demethylating agent eg. 5-aza-2'- deoxycytidine (5-AZA)
  • a KLF4 inducer eg. 15d-PGJ2
  • an NADPH oxidase inhibitor eg. Sinomenine
  • HDAC1 inhibitor eg
  • the combination comprising, consisting or consisting essentially of a DNA methyltransferase inhibitor; a histone deacetylase inhibitor; a KLF4 inducer, a retinoic acid receptor agonist; an HDAC1 inhibitor; and a protein tyrosine phosphatase PTP inhibitor may be used together with a combination comprising, consisting or consisting essentially of a histone deacetylase inhibitor; a KLF4 inducer, a MEK/ERK inhibitor; a protein tyrosine phosphatase PTP inhibitor; a H2 histamine receptor antagonist and Pregnant mare serum Gonadotropin (PMSG).
  • PMSG Pregnant mare serum Gonadotropin
  • a method for identifying one or CRA(s) for reprogramming a cell into an CIMP cell comprising the steps of: (i) providing a cell; (ii) incubating said cell in the presence of: a combination of two or more chemicals; and/or a repetition of one or more of the same or different chemicals; and (iii) determining if said cell has been reprogrammed in to a CIMP cell, optionally, wherein said cell is incubated in the absence of the chemicals for a period of time; and wherein the presence of a CIMP cell is indicative that the one or more chemicals are able to reprogram the cell.
  • the CIMP cells described herein may undergo specialisation.
  • the CIMP cells may undergo further specialisation into one or more semi-differentiated or differentiated cells.
  • the CIMP cell undergoes further specialisation such that it is a more lineage restricted cell than the CIMP cell.
  • Protocols and kits for specialising (eg. differentiating) cells are available in the art.
  • a cell of the ectoderm lineage may be reprogrammed into a CIMP cell and then further differentiated into, for example, cells of the hematopoietic lineage - such as megakaryocytes, plasma cells, and/or macrophages/monocytes.
  • a further aspect relates to a method of reprogramming a cell of the mesoderm lineage via a CIMP cell comprising the steps of: (i) providing a cell of the mesoderm lineage; (ii) contacting said cell with one or more of the CRA(s) (eg. combinations of CRA(s)) described herein; (iii) obtaining a CIMP cell; (iv) differentiating the CIMP cell in to a desired cell type - such as an adipocyte/lipocyte, a bone cell (eg.
  • the cell culture conditions used in Combinatorial Cell Culture comprised bioactive chemical compounds with activities such as epigenetic modifi cation activities and effects on intracellular signal transduction.
  • the set of chemicals with epigenetic modu lation activity included chromatin modifying agents - such as DNA methyltransferase inhibitors, histone deacetylase inhibitors, histone methyltransferase inhibitors and ATP dependent chromatin remodelling agents.
  • the set of chemicals with effects on intracellular signal transduction included chemicals known to modulate pathways that intersect with the signal transduction mechanism of Nanog, Klf4, PI3K, MEK/ERK, telomerase; GPR, Wnt, RAR, Calcium signalling, anti-appoptotic compounds, and other intracellular effectors.
  • iSTEM medium is said to eliminate differentiation signals to sustain mouse ES cell self-renewal and maintain stem cells in their ground state via blocking exogenous signals (to pERK) rather than providing exogenous signals to STAT3 via LIF.
  • ESGRO is a completely defined (serum-free) medium containing BMP4 and LIF that has been shown to support mouse ES cells under feeder-free and serum-free conditions (Ying et a/., 2003, Cell 1 15:281 -292). This enabled selective expansion of CIMP cells in cell units bearing such cells.
  • bead cultures were trypsinized, cells detached from the beads were further propagated as monolayer cultures in gelatine coated dishes.
  • the cells were, then stained with primary antibodies against beta- tubulin III (Sigma) and/or GFAP (Sigma), followed by staining with suitable secondary antibod ies conjugated to Alexa Fluor 488 or Alexa Fluor 594 (Invitrogen) . Nuclei were counterstained with Hoechst dye or DAPI (Invitrogen). Cells were imaged using a Nikon Eclipse TE 2000-S inverted fluorescence microscope equipped with Nikon DS-F1 1 camera.
  • NSC cells seeded on 170,000 gelatin beads were initially split (split 1 ) into 20 different media containing cocktails of CRA(s) and cultured therein for one day, then transferred to mES medium for a further two days.
  • cell units were washed in 10 volumes of DMEM and then pooled and split (split 2) into 15 different media containing cocktails of CRA(s) and cultured therein for one day, then transferred to mES medium for a further two days.
  • a method of reprogramming a cell into a chemically induced multi-lineage potential (CIMP) cell comprising the steps of: (i) contacting the cell to be reprogrammed with a medium comprising one or more chemical reprogramming agents (CRAs); and (ii) obtaining a CIMP cell, wherein the cell to be reprogrammed has not been genetically manipulated and/or contacted with one or more exogenous reprogramming proteins or nucleic acids encoding same to induce pluripotency.
  • CIMP chemically induced multi-lineage potential

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Abstract

La présente invention concerne un procédé de reprogrammation d'une cellule par le biais d'une cellule de potentiel multilignée à induction chimique (CIMP pour chemically induced multi-lineage potential) comprenant les étapes consistant à :(i) mettre la cellule à reprogrammer en contact avec un milieu comprenant un ou plusieurs, de préférence, deux agents de reprogrammation chimique ou plus ; (ii) obtenir une cellule CIMP dans laquelle l'expression d'un ou plusieurs gènes de pluripotence est induite et une ou plusieurs protéines de pluripotence sont exprimées par le ou les gènes de pluripotence après contact avec le ou les agents de reprogrammation chimiques de telle sorte que la cellule a gagné de la puissance et la capacité de se différentier en un nombre accru de types de cellules par comparaison avec la cellule de l'étape (i) ; et (iii) différentier la cellule CIMP en une cellule à la lignée plus restreinte, de préférence, la cellule à reprogrammer n'ayant pas été génétiquement manipulée pour induire la pluripotence et/ou mise en contact avec une ou plusieurs protéines reprogrammatrices exogènes ou acides nucléiques les codant pour induire la pluripotence.
PCT/GB2011/001063 2010-07-16 2011-07-14 Procédé de reprogrammation d'une cellule WO2012007725A2 (fr)

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Cited By (7)

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CN103877595A (zh) * 2014-03-21 2014-06-25 中国科学院生物物理研究所 人类免疫缺陷病毒抑制剂或药物增敏剂的筛选方法
WO2013159091A3 (fr) * 2012-04-20 2015-04-30 Aptamir Therapeutics, Inc. Modulateurs de microarn de la thermogenèse
US9034839B2 (en) 2012-04-20 2015-05-19 Aptamir Therapeutics, Inc. miRNA modulators of thermogenesis
WO2015104424A1 (fr) * 2014-01-13 2015-07-16 Centre Leon Berard Procede de preparation de cellules pluripotentes induites
KR102087084B1 (ko) * 2020-02-03 2020-03-10 주식회사 이에이치엘바이오 항노화인자를 발현하는 지방유래 줄기세포의 대량 배양방법
CN117904034A (zh) * 2024-01-19 2024-04-19 杏林医学科技(江苏)有限公司 自体干细胞培养液及其在修复女性生殖器官凝胶上的应用
US12286625B2 (en) 2016-04-29 2025-04-29 Aptamir Therapeutics, Inc. Inhibition of mir-22 miRNA by APT-110

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