骨髄のシヌソイドの自己再生性骨髄生成体は,血液形成微生物環境を組織することができる
Benedetto Sacchetti1, Alessia Funari, Stefano Michienzi
1Deparment of Experimental Medicine, La Sapienza University, 00161 Rome, Italy.
Cell
|October 25, 2007
まとめ
研究者らは,骨髄ストロマのMCAM/CD146+サブエンドセリア細胞を特定し,血液形成微環境 (HME) を確立した. これらの細胞は,HMEの形成と新しい骨の部位に骨格の祖先の移植に不可欠です.
科学分野:
- 血液学 ヘマトロジ
- 幹細胞生物学 幹細胞生物学
- 血管生物学 血管生物学
背景:
- 人間の骨髄の血液生成微環境 (HME) を形成する細胞成分と骨髄ストロマ内の骨格の祖先は,まだ十分に理解されていません.
- これらの細胞を特定することは,血液形成と骨の再生を理解するために非常に重要です.
研究 の 目的:
- 人間の骨髄でHMEを確立する特定の細胞タイプを特定するために.
- これらの細胞が骨格の祖先の移植における役割と,血管系との相互作用を調査する.
主な方法:
- MCAM/CD146発現する細胞をヒトの骨髄ストロマから異型部位に移植する.
- HMEとミニチュア骨器官形成のインビボ観察.
- 幹細胞と発達中のシヌソイドの間の細胞相互作用の分析.
- サブエンドセリアス・ストロマル細胞によるアニオポエチン-1生成の評価.
主要な成果:
- MCAM/CD146発現するヒト骨髄ストロマのサブエンドセリア細胞は,移植時にHMEを異型部位に移すことができる.
- これらの細胞は,類似した亜内皮細胞を含む機能的なミニチュア骨器官を確立します.
- サブエンドセリアス・ストロマル細胞の移植は,発達中のシヌソイドとダイナミックな相互作用を伴う.
- これらのストロマ細胞は,HSCニッチと血管再構成の重要なレギュレータであるアニオポエチン-1の重要な生産者である.
結論:
- MCAM/CD146+亜内皮細胞は,血液形成微環境の主要なオーケストラである.
- これらの細胞は,骨格の祖先の形成と骨髄の新生において重要な役割を果たします.
- この発見は,HME形成,シヌソイドにおける骨格の祖先の局所化,および血管新生の間の機能的なリンクを明らかにしています.
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