m6A阅读器YTHDF2通过抑制IL-6R/JAK2/STAT1通路介导的高流动性组盒-1释放来缓解炎症反应
Zhuo Zeng1, Yingying Lan1, Lijuan Zhang1
1Institute of Burn Research, State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China.
Burns & trauma
|November 29, 2023
概括
通过减少HMGB1的释放,YTHDF2作为败血症的炎症抑制剂. 这种机制涉及抑制IL-6R/JAK2/STAT1通路,突出显示YTHDF2作为毒症的潜在治疗标.
科学领域:
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
- 生物化学 生物化学
背景情况:
- 败血症是烧伤受害者的严重并发症,其特征是炎症反应失调.
- YTH域家族2 (YTHDF2),一个m6A阅读器,参与真核细胞细胞过程,但其在败血症中的作用仍然未被探索.
研究的目的:
- 调查YTHDF2在败血症中的作用和潜在机制.
- 确定YTHDF2是否可以作为败血症的治疗点.
主要方法:
- 定量逆转录-聚合酶连锁反应 (qRT-PCR) 和西部斑点来评估蛋白质和mRNA的表达.
- 与酶相关的免疫吸收试验 (ELISA) 用于测量炎症性细胞因子水平.
- RNA免疫沉降和双露西法酶记者测定证实了IL-6RmRNA的YTHDF2向.
- 脂聚糖 (LPS) 诱导性败血症的小鼠模型,以验证体内发现.
主要成果:
- 在败血症条件下 (小鼠,患者和LPS诱导的细胞) 发现YTHDF2的表达很低.
- 过度表达YTHDF2通过抑制HMGB1释放和LPS刺激细胞中的JAK2/STAT1信号通路来减少炎症.
- YTHDF2抑制IL-6RmRNA的稳定性,从而抑制HMGB1释放和IL-6R/JAK2/STAT1轴,在败血性小鼠中发挥保护作用.
结论:
- YTHDF2作为毒症中炎症的关键抑制剂.
- 通过调节IL-6R/JAK2/STAT1通路,YTHDF2可以减少HMGB1的释放.
- YTHDF2代表了毒症干预的新型治疗标.
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