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Updated: Jul 16, 2026

07:59
Measurement of Basal and Forskolin-stimulated Lipolysis in Inguinal Adipose Fat Pads
Published on: July 21, 2017
脂肪組織における脂肪の動員は,脂肪トリグリセリドリパゼによって促進される
Robert Zimmermann1, Juliane G Strauss, Guenter Haemmerle
1Institute of Molecular Biosciences, University of Graz, Graz, Austria.
まとめ
新しく発見された酵素である脂肪トリグリセリドリペーゼ (ATGL) は,脂肪組織に蓄積された脂肪を分解するのに不可欠です. ATGLは,エネルギーと脂肪の代謝を管理するために,ホルモン感受性リパース (HSL) と作用します.
科学分野:
- バイオケミストリー バイオケミストリー
- メタボリック研究.
- 脂質代謝 脂質代謝とは
背景:
- 貯蔵されたトリグリセリドの分解である脂質分解は,エネルギーホメオスタシスのために不可欠です.
- 機能不全の脂解は肥満とインスリン抵抗性に関連しています.
- ホルモン感受性リパゼ (HSL) は以前,哺乳類の脂肪組織におけるトリグリセリドの水解に責任を負う唯一の酵素と考えられていた.
研究 の 目的:
- 脂肪組織におけるトリグリセリドの水解に関与する新しい酵素を特定し,特徴づけること.
- 脂解性プロセスにおける脂肪トリグリセリドリパース (ATGL) の役割を調査する.
主な方法:
- 酵素活性測定法による酵素活性測定法
- マウスとヒトの脂肪組織における遺伝子発現分析
- サブストラット特異性研究
- 抑制の研究は,抑制研究である.
主要な成果:
- アディポストリグリセリドリパゼ (ATGL) は,トリグリセリド水解の初期段階を触媒する重要な酵素として特定されました.
- ATGLには,植物性アシルヒドロラーゼの特徴であるパタチン領域が含まれています.
- ATGLは脂肪組織に高度に発現し,トライアキルグリセロールに対する高い基板特異性を表しています.
- ATGLの抑制により,脂肪酸アシルヒドロラーゼの全体的な活性が著しく低下した.
結論:
- ATGLは,HSLと共に,哺乳類の脂肪組織におけるトリグリセリド分解に関与する第2の主要な酵素です.
- ATGLは,調整された脂溶性経路において重要な役割を果たし,エネルギーホメオスタシスに影響を与えます.
- ATGLの発見は,脂肪代謝の調節と代謝障害の潜在的な治療目標に関する新しい洞察を提供します.
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