TH1 responses in type 2 diabetes

IF 27.7 1区 医学 Q1 IMMUNOLOGY
Stephanie Houston
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引用次数: 0
2 型糖尿病的 TH1 反应
2型糖尿病(T2D)会增加呼吸道病毒感染时出现并发症的风险,而且T2D患者无法产生强大的T辅助细胞1(TH1)反应。Gray 等人在《细胞代谢》(Cell Metabolism)杂志上发现,高血糖会导致线粒体功能障碍和脂质过氧化(LPO),从而导致 STAT4 降解,导致 TH1 反应减弱。作者注意到,在患有 T2D 和严重 COVID-19 的个体中,TH1 细胞的比例较低。在小鼠中,如果在感染流感前诱发T2D,病毒控制就会受损,TH1细胞就会减少。根据血糖控制情况将患有T2D的人分成几组,与健康对照组或血糖控制良好的T2D患者相比,血糖控制不佳的T2D患者(PC-T2D)循环中的TH1细胞更少。在极化条件下培养TH1细胞时,只有PC-T2D患者的幼稚T细胞向TH1细胞分化受损。LPO在PC-T2D患者的TH1细胞中含量较高,LPO抑制剂可恢复PC-T2D患者T细胞的TH1细胞分化,并提高TH1细胞分化和T2D小鼠的病毒控制能力。LPO 可诱导 STAT4 发生羰基化,从而加速其降解。PC-T2D个体T细胞中LPO水平的增加是由线粒体活性氧(mROS)的增加驱动的,线粒体活性氧的增加是由线粒体生物生成受损和脂肪酸合成(FAS)增加引起的;清除mROS或阻断FAS可以恢复PC-T2D T细胞的TH1分化:https://doi.org/10.1016/j.cmet.2024.10.004 (2024)
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来源期刊
Nature Immunology
Nature Immunology 医学-免疫学
CiteScore
40.00
自引率
2.30%
发文量
248
审稿时长
4-8 weeks
期刊介绍: Nature Immunology is a monthly journal that publishes the highest quality research in all areas of immunology. The editorial decisions are made by a team of full-time professional editors. The journal prioritizes work that provides translational and/or fundamental insight into the workings of the immune system. It covers a wide range of topics including innate immunity and inflammation, development, immune receptors, signaling and apoptosis, antigen presentation, gene regulation and recombination, cellular and systemic immunity, vaccines, immune tolerance, autoimmunity, tumor immunology, and microbial immunopathology. In addition to publishing significant original research, Nature Immunology also includes comments, News and Views, research highlights, matters arising from readers, and reviews of the literature. The journal serves as a major conduit of top-quality information for the immunology community.
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