乳酸通过H3K14la/KLF5通路驱动糖尿病病中的表皮层-介质细胞转换
Xuanxuan Zhang1, Jicong Chen1, Ruohui Lin1
1School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
Redox biology
|June 26, 2024
概括
乳酸的升高驱动糖尿病病 (DKD) 的进展,通过表观遗传修饰促进表皮质-介质细胞过渡 (EMT). 针对乳酸驱动的H3K14la/KLF5通路为DKD提供了一个新的治疗策略.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 代谢途径 代谢途径
背景情况:
- 高尿乳酸水平与糖尿病病 (DKD) 的进展相关.
- 乳酸酸对DKD的贡献的确切机制尚不清楚.
- 表皮-介质细胞过渡 (EMT) 是DKD病变发生的一个关键过程.
研究的目的:
- 阐明乳酸在驱动DKD中的作用.
- 调查连接乳酸与DKD中的EMT的表观遗传机制.
- 探索针对乳酸路径的潜在治疗策略.
主要方法:
- 研究了AGE诱导的管状上皮细胞,以观察代谢变化.
- 评估了降低乳酸盐水平对EMT和纤维化的影响.
- 利用ChIP-seq和RNA-seq来分析基因素乳酸和基因表达.
- 研究了KLF5在调节cdh1转录和EMT中的作用.
- 采用脏特异性敲除和KLF5.5的药理抑制.
主要成果:
- 观察到一种从氧化酸化转换为糖解的代谢转换,增加了乳酸盐的产生.
- 在DKD模型中,降低乳酸水平减弱了EMT和管纤维化.
- 乳酸酸增加了组织素H3 lysine 14乳酸化 (H3K14la),促进了KLF5的表达.
- 通过抑制cdh1转录,KLF5促进了EMT.
- 抑制KLF5可以减少EMT和DKD纤维化.
结论:
- 乳酸盐通过表观遗传调节EMT促进DKD的进展.
- 乳酸驱动的H3K14la/KLF5通路是DKD病变发生的关键机制.
- 破坏H3K14la/KLF5通路为DKD提供了一个有前途的治疗途径.
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