RAGE ノックアウトはダイエットによる肥満と代謝障害を軽減する

Isabelle L Palmer¹, Genevieve Parker¹, Alden T Chiu¹

¹Department of Cell Biology and Physiology, Brigham Young University, Provo, UT 84602, USA.

Metabolites

|August 27, 2025

まとめ

高度な糖化最終産物 (RAGE) の受容体を持たないマウスは,食事による肥満に抵抗した. RAGE ノックアウトマウスは西洋の食生活で体重が増減しエネルギー消費が増加し炎症が減りました

科学分野:

代謝に関する研究
肥満に関する研究
炎症に関する研究

背景:

高度な糖分化最終産物 (RAGE) の受容体は肥満と代謝機能障害に関連しています.
RAGEが食事によって引き起こされる肥満における特定の役割については,さらなる解明が必要である.

研究の目的:

RAGE ノックアウト (RAGE KO) の代謝効果を,西洋食 (WD) のマウスで調査する.

主な方法:

RAGE KOマウスとワイルドタイプ (WT) の littermatesがWDに餌を与えられた.
間接的なカロリメトリーとミトコンドリア呼吸検査を行った.
体重,脂肪細胞サイズ,全身性炎症マーカー (TNF-αなど) を測定した.

主要な成果:

RAGE KOのマウスは,WDのWTマウスと比較して,体重増加と脂肪細胞のサイズが減少した.
RAGE KOマウスは酸素消費と運動能力が増加し,エネルギー消費が増加したことを示した.
RAGE KOマウスでは全身の炎症マーカーのレベルが低く,炎症反応の減少を示唆した.

結論:

RAGEはメタボリック・ホメオスタシスに重要な役割を果たします.
RAGEの消去は,WDによって誘発される肥満と代謝障害に対する耐性を授与します.
RAGEを標的とした治療は,肥満および関連する代謝障害に対する潜在的な治療戦略です.

キーワード:

脂肪高度グリケーションの最終製品ミトコンドリア肥満

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