乳酸酸通过CD40LG下调和SOCS3介导的JAK1/STAT3通路抑制来抑制败血症中的T细胞激活
Hui Zhang1, Fanbing Meng1, Jinxuan Tang1
1Department of Anesthesiology and Perioperative Medicine, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China.
概括
败血症中乳酸盐水平升高通过降低CD40LG和SOCS3的调节来抑制T细胞活化,影响激酶活性和免疫细胞功能. 这项研究确定了参与乳酸诱导免疫抑制的关键基因.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 乳酸盐是败血症严重程度的标志物,影响着激酶活性和免疫抑制.
- 了解乳酸对免疫细胞和激酶的影响对于败血症管理至关重要.
研究的目的:
- 为了研究乳酸对酶活性和免疫细胞在败血症的影响.
- 确定调节乳酸盐,激酶和免疫细胞之间的相互作用的关键基因.
主要方法:
- 差异基因表达分析 (limma) 来识别与败血症相关的基因.
- 与乳酸相关的DEGs (lrDEGs) 和与酶相关的DEGs (krDEGs) 之间的相关性分析.
- 核心基因鉴定 (CytoHubba,WGCNA) 和免疫细胞分析 (xCell).
主要成果:
- 在败血症患者中观察到irrDEGs和krDEGs之间的显著相关性.
- 鉴定了8个枢纽基因,在lrDEGs/krDEGs和T淋巴细胞得分之间存在强烈的关联.
- CD40LG和SOCS3被确定为T细胞功能的关键调节剂,与lrDEGs相关.
结论:
- 乳酸盐通过与酶相关的基因表达的改变来抑制败血症中的T淋巴细胞激活.
- 升高的乳酸盐降低CD40LG和SOCS3,通过抑制JAK-STAT通路来抑制T细胞.
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