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在癌症中,TMPRSS2表达与瘤免疫性和对免疫检查点抑制剂的反应的联系

Karthikeyan Subbarayan¹, Helena Bieber¹, Chiara Massa²

¹Medical Faculty, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.

Journal of translational medicine

|March 7, 2025

概括

TMPRSS2蛋白酶对于病毒进入至关重要,其表达因癌症类型而异. 准TMPRSS2可能会提高癌症患者的免疫检查点抑制剂治疗疗效,可能减轻COVID-19的严重程度.

科学领域:

在瘤学瘤学.
病毒学病毒学
免疫学免疫学免疫学

背景情况:

TMPRSS2蛋白酶促进病毒入侵,包括SARS-CoV-2.
癌症患者在感染SARS-CoV-2时面临更糟糕的结果.
在不同类型的癌症中TMPRSS2的作用需要详细的研究.

研究的目的:

调查TMPRSS2表达,功能和在各种瘤类型中的临床相关性.
分析SARS-CoV-2感染对TMPRSS2表达和宿主免疫性的影响.
探索TMPRSS2和免疫检查点抑制剂 (ICI) 治疗之间的联系.

主要方法:

分析来自瘤,邻近组织和血液样本的RNA测序数据.
在体外研究使用TMPRSS2-调节的细胞模型 (TMPRSS2高,TMPRSS2低).
与外围血液单核细胞 (PBMC) 进行共同培养实验,以评估免疫反应.

主要成果:

在SARS-CoV-2感染血液中TMPRSS2升高;瘤类型的表达变化.
高TMPRSS2的瘤细胞显示加强了干扰素信号,HLA-I,PD-L1和IL-6,NK细胞细胞毒性降低.
在高TMPRSS2模型中,JAK2抑制或TMPRSS2微RNA降低了TMPRSS2的表达;尼沃卢马布治疗增加了免疫细胞透.

结论:

TMPRSS2在瘤系统中起着重要作用,并在SARS-CoV-2感染期间影响宿主免疫性.
TMPRSS2的激活会影响免疫相关途径,影响对ICI的反应.
准TMPRSS2为改善ICI治疗和减轻COVID-19严重性的潜在策略.

关键词:

免疫逃脱是为了逃脱免疫.免疫反应的免疫反应.这就是SARS-CoV-2病毒.这就是TMPRSS2的原因.瘤这些瘤

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