通过SHP1/BTK轴抑制脂肪酸氧化,TREM2会加剧败血症
Siqi Ming1,2, Xingyu Li1,3, Qiang Xiao4
1Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China.
The Journal of clinical investigation
|October 15, 2024
概括
在骨髓细胞2 (TREM2) 上表达的触发受体抑制了败血症中的脂肪酸氧化 (FAO). 抑制TREM2通过恢复FAO改善败血症结果,提供潜在的治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 代谢过程中的代谢.
- 病理生理学 病理生理学
背景情况:
- 败血症与脂肪酸氧化 (FAO) 功能受损有关.
- 在败血症中粮农组织功能障碍的调控机制尚未完全理解.
- 巨细胞中的脂质代谢在败血症的发病过程中发挥着关键作用.
研究的目的:
- 为了研究Trigger Receptor Expressed on Myeloid cells 2 (TREM2) 在调节败血症期间脂肪酸氧化 (FAO) 的作用.
- 为了确定TREM2是否是治疗败血症治疗的潜在治疗标.
主要方法:
- 在败血症中识别表达TREM2的巨细胞.
- 在TREM2淘汰赛小鼠中评估败血症的严重程度和结果.
- 测量脂肪酸氧化率和甘油三积累.
- 研究TREM2,SHP1和布鲁顿氨酸激酶 (BTK) 之间的分子相互作用.
主要成果:
- 败血症患者的TREM2表达上调,与疾病严重程度相关.
- 巨细胞特异性TREM2淘汰会改善存活率,减少炎症,并在败血症模型中减轻器官损伤.
- TREM2 缺乏导致甘油三积累的减少和增强的FAO.
- TREM2与SHP1相互作用,以抑制BTK介导的FAO在败血症中的作用.
结论:
- 在败血症中,TREM2 作为脂肪酸氧化 (FAO) 的抑制剂.
- 针对TREM2可以恢复FAO并改善败血症引起的病理.
- TREM2代表了一种新的治疗点,用于治疗败血症的临床干预.
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