JP5226928B2 - 細胞の分化転換方法 - Google Patents
細胞の分化転換方法 Download PDFInfo
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- JP5226928B2 JP5226928B2 JP2004121350A JP2004121350A JP5226928B2 JP 5226928 B2 JP5226928 B2 JP 5226928B2 JP 2004121350 A JP2004121350 A JP 2004121350A JP 2004121350 A JP2004121350 A JP 2004121350A JP 5226928 B2 JP5226928 B2 JP 5226928B2
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Description
好ましくは、DNAのメチル化剤及び脱メチル化剤を使用することなく分化転換を行う。
本発明は、第1の分化表現型を有する最終分化した成熟細胞の培養条件を変化させることによって上記第1の分化表現型とは異なる第2の分化表現型を有する最終分化した成熟細胞へと分化転換させる方法において、培養条件を、上記第1の分化表現型を有する最終分化した成熟細胞の培養に適した培養条件から、上記第2の分化表現型を有する最終分化した成熟細胞の培養に適した培養条件に変化させることを特徴とする方法である。
オステオポンチン(osteopontin)、オステオカルシン(osteocalcin)、MGP(matrix Gla protein)、ALP(Alkaline phosphatase)、Cbfa1(Core binding factor alpha 1)などが挙げられる。また特異的な染色法として、アリザリンレッド染色、Von Kossa染色などが挙げられる。
以下の実施例により本発明をさらに具体的に説明するが、本発明は実施例によって限定されるものではない。
マウス骨芽細胞樹立株(MC3T3/E1)を、FBS(終濃度10%)、5〜10mMのβ−Glycerophosphate、50μg/mlのアスコルビン酸、1×Glutamaxを加えたαMEM培地(以下、骨芽細胞培地)でサブコンフルエントになるまで培養した。
骨芽細胞培地で培養したMC3T3/E1細胞を神経細胞培地に移したところ、6〜12時間後に骨芽細胞特有の敷石様の形態から、細胞突起の長い神経細胞様の形態に変化した(図1)。神経細胞様に変化した細胞に対して、神経細胞に特異的なマーカータンパク質である、Neurofilament、GFAP(Glial fibrillary acidic protein)に対する抗体を用いて免疫染色を行った結果、神経細胞様の細胞が染色された(図2)。以上の結果から、この細胞が神経細胞であることが示された。
Claims (5)
- 骨芽細胞用の培地から、bFGF、FGF−8、EGF及びBDNFを含む培地に交換することを含む、最終分化した成熟骨芽細胞を神経細胞に分化転換させる方法。
- 成熟骨芽細胞が、コラーゲンタイプI、オステオポンチン、オステオカルシン、マトリックスGla プロテイン、アルカリホスファターゼ、及びコア・バインディング・ファクターα1(Cbfa1)から選ばれる少なくとも1つのマーカーを発現する細胞である、請求項1に記載の方法。
- 成熟骨芽細胞が、アリザリンレッド染色、又はVon Kossa染色で染色できる細胞である、請求項1に記載の方法。
- 骨芽細胞用の培地が、β−Glycerophosphate、アスコルビン酸及びGlutamax(登録商標名)を含む培地である、請求項1に記載の方法。
- 成熟骨芽細胞が、β−Glycerophosphate、アスコルビン酸及びGlutamax(登録商標名)を含む培地で培養したMC3T3−E1細胞である、請求項1に記載の方法。
Priority Applications (5)
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JP2004121350A JP5226928B2 (ja) | 2004-04-16 | 2004-04-16 | 細胞の分化転換方法 |
CN200580011315.5A CN1965075B (zh) | 2004-04-16 | 2005-04-15 | 细胞分化转换方法 |
PCT/JP2005/007655 WO2005100550A1 (ja) | 2004-04-16 | 2005-04-15 | 細胞の分化転換方法 |
EP05734077A EP1775340A4 (en) | 2004-04-16 | 2005-04-15 | CELL TRANSDIFFERENTIATION PROCESS |
US11/578,589 US20070298495A1 (en) | 2004-04-16 | 2005-04-15 | Method for Transdifferentiating Cells |
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JP2004121350A JP5226928B2 (ja) | 2004-04-16 | 2004-04-16 | 細胞の分化転換方法 |
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JP2005295970A JP2005295970A (ja) | 2005-10-27 |
JP5226928B2 true JP5226928B2 (ja) | 2013-07-03 |
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US (1) | US20070298495A1 (ja) |
EP (1) | EP1775340A4 (ja) |
JP (1) | JP5226928B2 (ja) |
CN (1) | CN1965075B (ja) |
WO (1) | WO2005100550A1 (ja) |
Families Citing this family (4)
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WO2014170488A1 (en) * | 2013-04-19 | 2014-10-23 | Universita' Degli Studi Di Milano | Methods for the conversion of somatic cells into pancreatic-hormone secreting cells |
CN103215222A (zh) * | 2013-04-19 | 2013-07-24 | 陈云燕 | 一种将人脂肪间充质干细胞诱导成神经细胞的诱导培养基及方法 |
WO2016160918A1 (en) | 2015-03-31 | 2016-10-06 | The University Of North Carolina At Chapel Hill | Delivery vehicles for stem cells and uses thereof |
JP2020537522A (ja) | 2017-10-13 | 2020-12-24 | イーエムベーアー−インスティテュート フュール モレクラレ バイオテクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツング | 体細胞の増強された再プログラミング |
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DE60120151D1 (de) * | 2000-04-28 | 2006-07-06 | Childrens Medical Center | Isolierung von mesenchymalen stammzellen und deren verwendung |
KR100903755B1 (ko) * | 2000-05-17 | 2009-06-18 | 제론 코포레이션 | 신경 선조세포 집단 |
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2004
- 2004-04-16 JP JP2004121350A patent/JP5226928B2/ja not_active Expired - Lifetime
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2005
- 2005-04-15 CN CN200580011315.5A patent/CN1965075B/zh not_active Expired - Fee Related
- 2005-04-15 EP EP05734077A patent/EP1775340A4/en not_active Ceased
- 2005-04-15 US US11/578,589 patent/US20070298495A1/en not_active Abandoned
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CN1965075A (zh) | 2007-05-16 |
EP1775340A4 (en) | 2007-06-13 |
CN1965075B (zh) | 2010-06-30 |
JP2005295970A (ja) | 2005-10-27 |
WO2005100550A1 (ja) | 2005-10-27 |
EP1775340A1 (en) | 2007-04-18 |
US20070298495A1 (en) | 2007-12-27 |
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