METTL3/YTHDF2 m6A轴通过表观遗传抑制PINK1和线粒细胞吸收来调解糖尿病病的进展
Fangfang Wang1,2, Juan Bai3, Xin Zhang4,5
1Department of Functional Medicine, School of Basic Medical Sciences, Jiamusi University, Jiamusi, China.
Journal of diabetes investigation
|November 28, 2023
概括
类似3甲基转移酶 (METTL3) 沉默通过调节PINK1 m6A修饰来抑制糖尿病病的进展. 这一发现为开发针对糖尿病脏病的向治疗提供了理论基础.
科学领域:
- 分子生物学分子生物学
- 生物化学 生物化学
- 腎臟病學 (nephrology) 是一種醫學專業.
背景情况:
- 糖尿病病 (DKD) 是糖尿病的一个主要并发症,其特征是逐渐的损伤.
- RNA甲基化,特别是N6-甲基氨酸 (m6A) 在DKD病变发生过程中的作用是一个新兴的研究领域.
- 甲基转移酶3 (METTL3) 是一个关键的m6A编写酶,涉及各种细胞过程.
研究的目的:
- 阐明METTL3有助于糖尿病病 (DKD) 进展的特定机制.
- 调查针对METTL3作为DKD治疗策略的潜力.
主要方法:
- 使用HK-2细胞和小鼠建立的DKD模型.
- 量化了m6A水平和评估了METTL3表达.
- 使用RT-qPCR,西斑,ELISA,CCK-8测定,TUNEL染色,HE和马森染色来评估细胞和组织的变化.
- 进行了MeRIP和RIP测定,以确定PINK1的m6A修饰和蛋白质相互作用.
主要成果:
- 在DKD模型中,METTL3和m6A水平显著升高.
- 在高葡萄糖刺激细胞中,METTL3沉默促进了细胞生长,抑制了细胞灭亡,并减少了炎症标记物 (ROS,TNF-α,IL-6).
- 在体内,METTL3沉默减轻了损伤,并发现可以调节PINK1 m6A修饰和mRNA水平,依赖于YTHDF2.
结论:
- 通过调节PINK1的m6A修饰,一种依赖于YTHDF2的机制,METTL3沉默抑制了DKD的进展.
- 这些发现为精确的治疗策略和针对糖尿病病的向药物开发提供了理论基础.
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