对表面活性蛋白B的自身免疫与检查点封锁期间的肺炎有关
Nina Wyss1, Fiamma Berner1, Vincent Walter2
1Institute of Immunobiology.
American journal of respiratory and critical care medicine
|April 16, 2024
概括
接受免疫检查点抑制剂 (ICI) 治疗非小细胞肺癌 (NSCLC) 的患者可能会患上肺炎. 针对表面活性蛋白-B的自身抗体和T细胞与这种情况有关,这表明了风险和诊断的潜在生物标志物.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 肺部病理学 肺部病理学
背景情况:
- 免疫检查点抑制剂 (ICI) 可以在癌症患者中引起肺炎.
- 了解非小细胞肺癌 (NSCLC) 中ICI相关肺炎的风险因素至关重要.
研究的目的:
- 研究自身抗体和自身反应性T细胞在ICI相关肺炎中对表面活性蛋白的作用.
- 确定在ICI治疗期间预测和诊断肺炎的潜在生物标志物.
主要方法:
- 在ICI治疗前和期间,对NSCLC患者的血清自身抗体和T细胞进行了分析.
- 利用蛋白质组学,T细胞刺激试验和单细胞RNA测序.
- 在单独的NSCLC和黑色素瘤队列中验证的发现.
主要成果:
- 在患有肺炎的患者中发现了针对表面活性蛋白-B (SP-B) 的更高的治疗前免疫球蛋白G自身抗体.
- 肺炎患者表现出CD4+ IFN-γ-阳性SP-B特异性T细胞和促炎性血清资料的增加.
- 在肺炎发作期间观察到识别SP-B的扩张T细胞克隆类型.
结论:
- SP-B自身抗体和CD4+T细胞的同时出现与ICI相关的肺炎有关.
- 治疗前的抗体水平可以预测肺炎风险.
- 在治疗期间的抗体水平可以帮助诊断.
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