H3K9的SLC22A6依赖性乳化会加剧内皮功能障碍和动脉样硬化
Yuting Ma1, Sunye Feng1, Yujie Jiang1
1School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
Metabolism: clinical and experimental
|November 6, 2025
概括
由SLC22A6和ACSS1驱动的乳酸乳化,通过激活SCD1.1,加剧动脉样硬化. 针对这种途径为心血管疾病提供了新的治疗策略.
科学领域:
- 心血管生物学 心血管生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 代谢调节 代谢调节 代谢调节
背景情况:
- 动脉样硬化是心血管疾病的主要原因,由内皮功能障碍驱动.
- 内皮细胞的新陈代谢重编程,特别是糖分分解的增加,会使动脉样硬化恶化.
- 乳酸衍生乳在动脉样硬化中的作用尚不清楚.
研究的目的:
- 调查乳糖在内皮功能障碍和动脉样硬化中的作用.
- 为了确定将新陈代谢,表观遗传学和动脉样硬化联系在一起的分子机制.
- 探索动脉样硬化的潜在治疗点.
主要方法:
- 在动脉样硬化小鼠的大动脉上进行RNA测序和海马XF代谢流量分析.
- 在 ApoE 淘汰背景上生成内皮特异性的 Slc22a6 淘汰和 Acss1 淘汰小鼠.
- 综合的多组学 (RNA-seq,CUT&Tag,代谢学) 和体内药理抑制.
主要成果:
- 胰岛素H3氨酸9乳酸化 (H3K9la) 在动脉样硬化的大动脉中升高,与SLC22A6介导的糖解和乳酸摄取有关.
- 内皮质Slc22a6淘汰会减少H3K9la,内皮质功能障碍和动脉样硬化.
- ACSS1和EP300驱动H3K9la,激活SCD1,从而恶化内皮功能障碍;抑制H3K9la或SCD1可以缓解疾病.
- 已经确定了乳酸,SLC22A6和ACSS1在动脉样硬化中的临床相关性.
结论:
- 一个新的代谢-表观遗传-转录轴 (SLC22A6-ACSS1-H3K9la-SCD1) 驱动动动脉硬化中的内皮病理生理学.
- 这一途径为动脉样硬化提供了新的治疗点.
- 向乳化及其下游效应因子为治疗心血管疾病提供了一个有希望的策略.
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