血管蛋白类蛋白8:一种多方面的蛋白质,有助于调节甘油三代谢
Yi Wen1, Yan Q Chen, Robert J Konrad
1Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana, USA.
Current opinion in lipidology
|November 14, 2023
概括
血管类蛋白8 (ANGPTL8) 通过形成控制不同组织中脂蛋白脂酶活性的复合体来调节甘油三代谢. 准ANGPTL8可能为治疗脂质疾病提供了一种新方法.
科学领域:
- 生物化学 生物化学
- 代谢调节 代谢调节 代谢调节
- 脂质代谢 脂质代谢是什么
背景情况:
- 血管蛋白类 (ANGPTL) 蛋白 ANGPTL3 和 ANGPTL4 是脂蛋白脂酶 (LPL) 的关键抑制剂.
- ANGPTL8是一种对胰岛素有反应的蛋白质,参与三糖 (TG) 代谢.
研究的目的:
- 通过其与ANGPTL3和ANGPTL4.4的复合体来审查ANGPTL8在调节TG代谢中的作用.
- 讨论由ANGPTL3/8和ANGPTL4/8复合体对LPL活动的组织特异调节.
主要方法:
- 关于ANGPTL蛋白及其在LPL抑制中的作用的现有文献的综述.
- 分析ANGPTL3/8和ANGPTL4/8复合体的形成和功能.
- ANGPTL3/8水平与血清TG的相关性以及阿波利波蛋白A5 (ApoA5) 的作用.
主要成果:
- 在脂肪组织中食后的ANGPTL4/8降低了LPL的抑制,促进了脂肪酸的吸收.
- 来自肝脏的ANGPTL3/8具有系统作用,在氧化组织中强烈抑制LPL,有利于在脂肪组织中储存TG.
- 循环中的ANGPTL3/8水平与血清TG相关,ApoA5阻断了LPL抑制的ANGPTL3/8表位.
结论:
- ANGPTL8对于TG代谢至关重要,通过ANGPTL3/8和ANGPTL4/8复合体在氧化和脂肪组织中差异调节LPL活性.
- 在ANGPTL3/8复合体内选择性抑制ANGPTL8为失脂症提供了潜在的治疗策略.
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