胚性幹細胞に由来する膠原前駆体:ミエリン化移植の源である

O Brüstle¹, K N Jones, R D Learish

¹Department of Neuropathology, University of Bonn Medical Center, Sigmund-Freud-Strasse 25, 53105 Bonn, Germany. brustle@uni-bonn.de

Science (New York, N.Y.)

|July 31, 1999

まとめ

胚性幹細胞は,移植のための神経前駆体へと微分化することができる. これらの細胞は,ミエリン疾患のラットモデルにおけるミエリン軸索を成功裏に形成し,神経学的疾患の治療の可能性を示しています.

科学分野:

神経科学は神経科学である.
幹細胞生物学幹細胞生物学
再生医学は,再生医療である.

背景:

胚性幹細胞 (ES細胞) は,細胞移植のための再生可能な供給源を提供します.
ES細胞から特定の神経細胞の種類を生成することは,治療用途において極めて重要です.

研究の目的:

ES細胞からオリゴデンドロサイトとアストロサイト前駆体を生成するためのプロトコルの開発.
ミエリン疾患の臨床前モデルにおいて,これらのES細胞由来前駆体の治療的可能性を評価する.

主な方法:

ネズミの胚性幹細胞を神経前駆体へと in vitro で分化する.
ヒトミエリン疾患のラットモデルにES細胞由来前駆体移植.
主体中枢神経系における前駆体生存,分化,およびミエリン形成の評価.

主要な成果:

ES細胞からオリゴデンドロサイトとアストロサイト前駆体を生成するためのプロトコルが成功裏に確立されました.
移植されたES細胞由来前駆体が宿主ニューロンと統合され,効率的にミエリン化されたアクソン.
機能的なミエリン化は,受容したネズミの脳と脊髄の両方で観察されました.

結論:

胚性幹細胞は,移植のための特定の神経細胞の種類を生成するための貴重な源となる可能性があります.
ES細胞由来の神経前駆体は,疾患モデルでミエリン化を促進する効果を示しています.
このアプローチは,ミエリン疾患やその他の神経学的状態に対する細胞ベースの治療法に期待を寄せている.

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