吉尔塞维林是一种新型的STING特异性抑制剂,可缓解毒症中与STING相关的炎症
Yuhong Chen1,2, Huihui Bian2, Juan Lv2
1School of Pharmacy, Bengbu Medical College, Bengbu, China.
Frontiers in immunology
|August 16, 2023
概括
尔西维林 (GS) 通过阻断其活性构造和促进降解来抑制STING信号传递. 这种新型的STING抑制剂通过减少炎症和器官损伤,显示出治疗败血症的治疗潜力.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 对干扰素基因 (STING) 途径的刺激对于对DNA病原体的天生的免疫是至关重要的.
- 刺激活有助于在败血症期间有害的炎症.
- 向STING为败血症管理提供了一个潜在的治疗策略.
研究的目的:
- 为了识别和描述STING信号传递的新型抑制剂.
- 为了研究gelsevirine (GS) 对STING的作用机制.
- 评估GS在败血症小鼠模型中的治疗疗效.
主要方法:
- 在体外抑制试验中使用STING激动剂 (2'3'-cGAMP,ISD,poly(dA:dT)) 和巨细胞.
- 在接和表面等离子体共振来评估GS与STING的结合.
- 生物素拉下测试,二元化测试和无处不在研究.
- 结和刺穿 (CLP) 鼠标模型来评估GS in vivo.
主要成果:
- 尔西维林 (GS) 强烈抑制STING介导的干扰素和细胞因子的产生.
- GS与STING的循环二核酸 (CDN) 结合口袋结合,防止其激活.
- GS促进K48链接的STING无处不在和降解,可能通过TRIM21.
- 在CLP诱导的败血症小鼠中,GS的使用显著改善了生存率,并减少了器官损伤.
结论:
- 尔西维林 (GS) 通过竞争性地与CDN口袋结合并促进STING降解,作为一种新的STING特异性抑制剂.
- 通过减轻STING驱动的炎症和器官损伤,GS证明了败血症治疗的治疗潜力.
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