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由下调的AKT1-SKP2介导的免疫敏感性诱导了与抗PD-1相关的甲状腺免疫损伤
Yanmeizhi Wu1, Jingjing Li1, Xu Yang1
1Department of Endocrinology, The Second Affiliated Hospital of Harbin Medical University, PR China.
International immunopharmacology
|June 11, 2023
概括
免疫检查点抑制剂如抗PD-1可以导致甲状腺免疫损伤. 这项研究确定了女性性别,甲状腺激素敏感性受损和IgG4作为危险因素,而抗PD-1降低了AKT1-SKP2的调节,以增加甲状腺免疫敏感性.
科学领域:
- 免疫学 免疫学 免疫学
- 内分泌学 在内分泌学.
- 在瘤学瘤学.
背景情况:
- 免疫检查点抑制剂 (ICI) 激活免疫系统,可能导致与免疫相关的不良反应 (irAEs).
- 与抗PD-1疗法相关的甲状腺免疫损伤背后的预测因素和机制尚不清楚.
研究的目的:
- 为了比较抗PD-1和抗PD-L1疗法之间的甲状腺免疫损伤风险.
- 在接受抗PD-1的患者中确定甲状腺免疫损伤和功能变化的预测因子.
- 阐明抗PD-1诱导的甲状腺免疫损伤的体外和体内机制.
主要方法:
- 对518名用抗PD-1/PD-L1.1治疗的患者进行了回顾性分析.
- 使用正常甲状腺细胞 (NTHY) 进行体外研究,以评估抗PD-1对细胞活力和免疫敏感性的影响.
- 蛋白质组分析 (质谱) 以确定差异表达蛋白质 (DEP) 和途径分析 (KEGG,GO,STRING,Cytoscape).
- 在小鼠和人类甲状腺组织样本中的体内验证.
主要成果:
- 甲状腺IRAE与女性性别,IgG,FT4,TPOAb,TGAb,TSHI,TFQI和TSH相关;外围淋巴细胞与甲状腺功能相关.
- 在体外,抗PD-1 (NIVO) 治疗导致G1阶段停止,FT4减少,PD-L1减少,IFN-γ增加,CD8+ T细胞透和细胞毒性增强.
- 确定AKT1-SKP2通路是关键的,SKP2与PD-L1.1相互作用.
结论:
- 女性性别,甲状腺激素敏感性受损和IgG4是甲状腺irAEs的危险因素.
- 周围血液淋巴细胞的特征影响甲状腺功能.
- 抗PD-1疗法通过降低AKT1-SKP2的调节,从而增加甲状腺免疫敏感性来诱导甲状腺irrAEs.
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