ニュートロフィルのクリアランスを通して血液形成ニッチのリズム調節
María Casanova-Acebes1, Christophe Pitaval, Linnea A Weiss
1Department of Epidemiology, Atherothrombosis and Imaging, Fundación Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid 28029, Spain.
Cell
|May 28, 2013
まとめ
老いた中性粒子の毎日の排出は,免疫と血液形成のリズムを同期させます. このプロセスには,骨髄のマクロファージとコレステロール受容体が関与し,先駆体細胞の放出と骨髄のニッチ機能に影響を与えます.
科学分野:
- 免疫学 免疫学とは
- 血液学 ヘマトロジ
- クロノバイオロジー クロノバイオロジー
背景:
- 中性粒子は,骨髄が放出され,排泄のために戻されるユニークな日々のサイクルを示します.
- 細胞の除去はホメオスタティック信号を生成し,昼夜調節の役割を示唆しています.
- 中性粒子のクリアランスと昼夜生理学的状態の間の安定状態の関係は未知のままです.
研究 の 目的:
- 中性粒子の除去が骨髄における昼夜イベントを誘発するかどうかを調査する.
- 中性粒子のクリアランスが骨髄生理学を調節するメカニズムを解明する.
- 免疫と血液形成のリズムを同期する高齢中性粒子の役割を理解する.
主な方法:
- マウスの老化中性粒子の識別と特徴付け (CD62L ((LO) CXCR4 ((HI))).
- 老いた中性粒子の骨髄への浸透の分析.
- 中性粒子のクリアランスの後の骨髄ニッチサイズと機能の評価.
- 観察された調節におけるマクロファージとコレステロール感知核受容体の役割の調査.
主要な成果:
- 中性粒子のホメオスタティッククリアランスは,骨髄の生理学を調節するシグナルを提供します.
- 老いた中性粒子は骨髄に浸透し,血液形成ニッチのサイズと機能を減らす.
- マクロファージの関与とコレステロールを感知する核受容体の活性化は,ニッチ調節に不可欠です.
- このプロセスは,血液形成原体のリズム的な放出に不可欠です.
結論:
- 中性粒子の除去は,骨髄における昼夜活動の主な調節因子である.
- 老いた中性粒子は,免疫と血液形成のリズムを同期する上で重要な役割を果たします.
- 中性粒子は炎症を超えた機能を持ち,血液形成と骨髄恒常化の調節を含む.
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