对改变的mRNA进行全转录组识别
Wei Wang1, Tie-Ning Zhang1, Ni Yang1
1Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China.
Frontiers in immunology
|June 5, 2023
概括
N6-甲基氨酸 (m6A) 修饰在脂聚糖类诱导的心肌损伤中是上调调的. 这种RNA修饰在炎症和亡中起作用,为与败血症有关的心脏损伤提供了洞察力.
科学领域:
- 分子生物学分子生物学
- 心血管研究研究心血管研究
- 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:
- 心肌损伤是内毒性/败血症的常见并发症,特别是在儿童中,其机制尚不清楚,治疗方法有限.
- N6-甲基氨酸 (m6A) RNA修饰因其在生理过程和疾病中的作用得到越来越多的认可,但其在败血症引起的心肌损伤中的参与尚未得到充分研究.
研究的目的:
- 调查m6A修饰在脂聚糖 (LPS) 诱导的心肌损伤中的作用.
- 在LPS诱导的心肌损伤的小鼠模型中构建一个m6A修改图.
主要方法:
- 通过腹腔内脂多糖体 (LPS) 注射建立了青少年老鼠肌心损伤模型.
- 量化了整体m6A修饰水平,并利用MeRIP-seq和RNA-seq识别心脏组织中差异修饰和表达的基因.
- 采用生物信息学来分析基因功能和qPCR来评估m6A相关的酶表达.
主要成果:
- 与对照组相比,在LPS治疗的老鼠心脏组织中,m6A修饰的总体水平显著上调.
- 不同的m6A修饰和/或表达的基因与炎症反应和亡途径密切相关.
- 关键的m6A相关酶,包括Mettl16,Rbm15,Fto,Ythdc2和Hnrnpg,在对LPS的反应中表现出差异性表达.
结论:
- m6A修饰与LPS诱导的心肌损伤的发病有关.
- 这些发现表明,m6A修饰通过调节炎症和亡相关途径来影响心肌损伤.
- 这项研究提供了关键的洞察力,了解了毒引起的心肌损伤背后的分子机制.
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