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内皮KLF11是一种新型的抗糖尿病动脉样硬化保护剂

Guizhen Zhao^1,2, Yang Zhao¹, Wenying Liang³

¹Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, MI, 48109, USA.

Cardiovascular diabetology

|October 27, 2024

概括

内皮克鲁佩尔样因子11 (KLF11) 通过抑制炎症和氧化应激来保护糖尿病动脉样硬化. 失去KLF11会加快疾病的发展,这表明KLF11是糖尿病并发症的治疗点.

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.
分子医学是分子医学.

背景情况:

糖尿病动脉样硬化是死亡的主要原因,由内皮细胞 (EC) 功能障碍引起.
克鲁佩尔样因子11 (KLF11) 涉及糖尿病的发展和血管平衡.
KLF11在糖尿病动脉样硬化中的特定作用以前是未知的.

研究的目的:

为了研究内皮KLF11在糖尿病动脉样硬化的发病过程中的作用.
为了确定KLF11在糖尿病条件下如何影响内皮细胞功能障碍.

主要方法:

在EC特定的KLF11转基因和淘汰赛小鼠 (Ldlr-/-) 中诱导了糖尿病动脉样硬化.
单细胞RNA测序 (sc-RNA seq) 用于分析ECs.
在体外功能增加和丧失研究中,研究了KLF11在高葡萄糖诱导的EC功能障碍中的作用.

主要成果:

在糖尿病小鼠中,内皮KLF11缺乏加速了动脉样硬化;KLF11过度表达抑制了它.
在糖尿病条件下,KLF11损失增加了内皮细胞到介质细胞的过渡 (EndMT).
在高葡萄糖中,KLF11抑制了炎症激活,TXNIP诱导的氧化应激,以及Notch1/Snail介导的EndMT.

结论:

内皮KLF11作为抗糖尿病动脉样硬化的一种内源性保护因子.
KLF11操纵为糖尿病相关的心血管并发症提供了潜在的治疗策略.

关键词:

动脉样硬化是一种动脉样硬化.糖尿病糖尿病糖尿病内皮细胞内皮细胞的内皮细胞.内皮细胞到介质细胞的过渡 (EndMT)在KLF1111的KLF11

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