托利德通过调节TET2介导的ZO-1氧甲基化来降低细胞的透性
Yue-Wen Tang1,2, Meng-Ya Jiang1, Jia-Wei Cao1
1Department of Nephrology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China.
Experimental biology and medicine (Maywood, N.J.)
|June 17, 2024
概括
托利德 (TP) 通过上调TET2的调节,增加Zonula occludens 1 (ZO-1) 在细胞损伤模型中的表达,从而降低透性. 这种表观遗传调节为蛋白尿症提供了潜在的治疗策略.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學.
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 足细胞损伤导致蛋白尿和血球硬化.
- Zonula occludens 1 (ZO-1) 对细胞完整性至关重要,其表达在慢性病 (CKD) 中减少.
- ptolide (TP) 显示出抗蛋白尿作用,但其机制尚不清楚.
研究的目的:
- 为了研究Triptolide (TP) 调高ZO-1表达并降低 podocyte 透性的机制.
- 探索表观遗传修饰,特别是DNA脱甲基化在TP作用中的作用.
主要方法:
- 纯氨基氨基核酸 (PAN) 诱导的 podocyte 损伤模型.
- 评估ZO-1表达和细胞的透性.
- 使用MeDIP和hMeDIP测量ZO-1促进体的TET2表达和DNA甲基化/基甲基化状态.
- 在TET2中进行了敲击实验.
主要成果:
- 在 PAN 治疗的 podocytes 中,TP 调高了 ZO-1 表达和降低了 podocyte 透率.
- TP增加了DNA脱甲基酶TET2的表达.
- DNA甲基转移酶抑制剂也增加了ZO-1的表达.
- TP调节了ZO-1促进体的甲基化状态.
- 降低TET2 Knockdown减少了ZO-1表达,增加了促进物甲基化,并提高了细胞的通透性.
结论:
- ptolide (TP) 通过 TET2 介导的 DNA 脱甲基化提高 ZO-1 表达的调节,并通过 TET2 介导的 DNA 脱甲基化降低 podocyte 透性.
- 这些发现表明TP可能通过对ZO-1的表观遗传调节来缓解细胞功能障碍.
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