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与免疫相关的皮肤不良事件显示出不同的临床和分子特征,取决于针对的免疫检查点

Lukas Kraehenbuehl^1,2,3,4, Nicola Winkelbeiner³, Patrick Turko^2,3

¹Department of Dermatology and Allergology, Kantonsspital Aarau, 5001 Aarau, Switzerland.

|June 26, 2025

概括

来自PD1免疫疗法的免疫相关皮肤不良事件 (ircAEs) 类似于有毒表皮解体 (TEN),而组合疗法 (P+C) 的ircAEs类似于黄斑皮疹 (MPR). 这种分子区别指导了对这些常见的免疫疗法副作用的个性化管理.

科学领域:

在瘤学瘤学.
免疫学免疫学免疫学
皮肤病学皮肤病学
药理学药理学是指药理学的学科.

背景情况:

免疫相关的皮肤不良事件 (ircAEs) 是癌症免疫治疗的常见并发症,为更广泛的免疫相关不良事件 (irAEs) 提供了见解.
了解7ircAEs的分子基础对于管理免疫疗法副作用和保持治疗疗效至关重要.
由于它们的呈现方式相似,斑点斑块性皮疹 (MPR) 和有毒表皮解 (TEN) 作为调查ircAEs的临床模型.

研究的目的:

描述由单剂PD1和组合PD1+CTLA4 (P+C) 免疫治疗方案产生的ircAEs独特的分子和细胞特征.
将ircAEs的转录和免疫透物与MPR和TEN的转录和免疫透物进行比较.
阐明不同的免疫疗法策略如何影响皮肤不良事件的发展.

主要方法:

从经历了ircAEs,MPR,TEN和健康对照患者的皮肤活检的转录组分析.
多重复合免疫组织化学评估免疫细胞透到皮肤中的情况.
主要成分分析 (PCA) 用于转录基因数据的比较和PERMANOVA用于免疫透分析.

主要成果:

观察到明显的转录组特征:PD1相关的ircAEs与TEN聚集在一起,显示I型响应基因 (例如CXCL9,CXCL10) 的上调.
与P+C免疫疗法相关的ircAEs表现出与MPR更相似的基因表达特征.
在所有组中都发现了免疫透物的显著差异,在ircAE皮肤中大量的CD4T细胞;PD1表达在PD1单疗中的CD4细胞上明显高于其他组.

结论:

PD1单疗诱导的ircAEs与TEN的细胞毒性概况具有分子相似之处.
联合P+C免疫疗法相关的ircAEs更接近MPR的特征.
这些发现凸显了针对ircAEs量身定制的管理策略的需要,促进个性化方法以优化癌症免疫疗法,同时最大限度地减少治疗中断.

关键词:

癌症免疫疗法免疫疗法免疫检查点抑制抑制免疫检查点抑制与免疫相关的不良事件这是黑色素瘤.皮肤瘤学皮肤瘤学

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