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IL-33とST2による熱生成の周産期ライセンス
Justin I Odegaard1, Min-Woo Lee1, Yoshitaka Sogawa1
1Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA 94143-0795, USA.
Cell
|July 26, 2016
まとめ
インタールイウキン-33 (IL-33) は胎盤哺乳類における熱生成の活性化に不可欠である. このサイトカインは ブラウンとベージュの脂肪細胞を放出して 呼吸を可能にします 赤ちゃんが生まれた後の体温を維持するために不可欠です
科学分野:
- 生理学
- 免疫学
- 発達生物学
背景:
- 胎児哺乳類は出生後の生存のために 発熱を必要とします
- 脂肪細胞の解離タンパク質1 (UCP1) は熱生成の鍵です.
- 熱生成にアディポサイトを許可するメカニズムは不明である.
研究 の 目的:
- 発熱性アディポサイトのライセンスにおけるIL-33の役割を調査する.
- IL-33がUCP1発現を調節する分子メカニズムを解明する.
主な方法:
- アディポサイトにおけるUCP1 mRNAのスプライシングの分析
- UCP1タンパク質の濃度と解離呼吸の評価
- IL-33とST2欠乏したモデルにおける温度調節の評価
主要な成果:
- IL-33とその受容体ST2は,茶色とベージュの脂肪細胞におけるUCP1発現に不可欠である.
- IL- 33またはST2の欠如は,UCP1のスプライシングと機能の障害につながる.
- IL-33やST2が欠けているマウスは熱調節機能が欠けている.
結論:
- IL-33は発育スイッチとして機能し,熱生成のための脂肪細胞を許可します.
- IL - 33とST2は胎盤哺乳類における胎児間温度調節に不可欠である.
- この経路は 産後の人生への移行に不可欠です
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