通过CTRP13介导对内皮细胞功能的影响及其在肥胖中的潜在作用
Muhammad Aslam1, Ling Li2, Sina Nürnberger2
1Experimental Cardiology, Department of Internal Medicine I, Justus Liebig University Giessen, 35390 Giessen, Germany.
Cells
|August 9, 2024
概括
血管C1q/TNF相关蛋白13 (CTRP13) 的表达随着肥胖和糖尿病而增加. CTRP13调节内皮细胞的增殖和细胞循环,影响血管疾病的进展.
科学领域:
- 心血管生物学 心血管生物学
- 内分泌学 在内分泌学.
- 代谢综合征是代谢综合征的一种.
背景情况:
- 肥胖和心脏代谢综合征破坏了支持和反对动脉样硬化因素的平衡.
- 包括C1q/TNF相关蛋白 (CTRPs) 在内的皮细胞因子 (adipocytokines) 影响动脉样硬化发展.
- CTRPs参与调节动脉样硬化,促使对CTRP13的血管作用进行调查.
研究的目的:
- 调查CTRP13.13对血管的影响.
- 为了确定CTRP13表达模式在肥胖和糖尿病的条件.
- 阐明CTRP13影响内皮细胞功能的机制.
主要方法:
- 从肥胖和瘦小鼠,老鼠和人类的血管和内皮细胞 (ECs) 中评估了CTRP13的表达.
- 使用人类静脉内皮细胞 (HUVECs),培养肥胖小鼠血清,高葡萄糖和TNF-alpha.
- 管理重组CTRP13并使用腺病毒载体进行主导阴性 (DN) 和野生类型 (WT) 的α1/α2AMP激活蛋白激酶 (AMPK) 操纵.
主要成果:
- CTRP13在血管EC中表达,其表达在肥胖个体中升高.
- 高葡萄糖和TNF-α增加了HUVECs中的CTRP13表达.
- CTRP13减少了EC增殖,细胞循环进展,并调节了p53,p21和Rb酸化,主要是通过α-2 AMPK.
结论:
- 在糖尿病条件下的EC中,CTRP13表达被上调.
- CTRP13具有显著的血管调节特性.
- 在有代谢障碍的患者中,CTRP13可能会影响血管疾病的进展.
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