ペロキシソーム増殖器活性化受容体デルタは,肥満を予防するために脂肪代謝を活性化します
Yong-Xu Wang1, Chih-Hao Lee, Sambath Tiep
1Gene Expression Laboratory, The Salk Institute, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA.
Cell
|April 23, 2003
まとめ
ペロキシソーム増殖器活性化受容体デルタ (PPARdelta) の活性化により,脂肪酸の酸化とエネルギー消耗が強化され,肥満に対する抵抗性が生まれます. これは,PPARdeltaが代謝障害の治療における重要な標的であることを示唆しています.
科学分野:
- メタボリック調節 メタボリック調節
- 肥満に関する研究.
- 脂質代謝 脂質代謝とは
背景:
- 脂質代謝におけるPPARgammaとPPARalphaの役割はよく知られている.
- 脂質代謝におけるPPARdeltaの機能は,ほとんど不明のままである.
研究 の 目的:
- 脂質代謝と肥満に関する脂肪組織におけるPPARdeltaの役割を調査する.
- PPARdeltaの活性化が肥満を予防したり逆転させたりできるかどうかを判断する.
主な方法:
- マウスの脂肪組織におけるPPARdeltaの標的型活性化.
- PPARデルタアゴニストをダイエットによって誘発され,遺伝的に肥満のマウス (Lepr (((db/db)) に投与する.
- PPARデルタ欠乏症のマウスの高脂肪食を分析した.
- アディポサイトと骨格筋細胞を用いたインビトロ研究.
主要な成果:
- 脂肪組織におけるPPARデルタ活性化により,脂肪酸の酸化とエネルギー消耗のための遺伝子が誘発された.
- 活性化されたPPARdeltaを持つマウスは,食事による肥満と遺伝的肥満に抵抗性がありました.
- PPARデルタアゴニスト治療は,肥満マウスの脂質蓄積を低下させた.
- PPARデルタ欠乏マウスは,エネルギー解離と肥満の減少を示した.
- In vitroでは,PPARdeltaの活性化により,脂肪細胞と筋肉細胞の脂肪酸酸化が促進された.
結論:
- PPARdeltaは,脂肪燃焼の重要なレギュラーである.
- PPARdeltaの活性化により,脂質プロファイルが改善され,脂肪が減少します.
- PPARdeltaは,肥満および関連する疾患に対する潜在的な治療目標です.
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