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调解免疫抑制功能:关于SEMA4D在瘤微环境中的复杂免疫性质的新视角

Shujie Zeng^1,2, Zihao Zhang^1,2, Chunshui Ye^1,2

¹Department of Gastrointestinal Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.

Frontiers in oncology

|June 8, 2023

概括

赛马福林4D (SEMA4D) 在许多癌症中过度表达,并影响瘤微环境. 减少SEMA4D表达可以减轻T细胞疲劳,为癌症免疫疗法提供了一条新的途径.

科学领域:

免疫学免疫学免疫学
在瘤学瘤学.
生物信息学是一种生物信息学.

背景情况:

赛马福林4D (SEMA4D) 涉及抗瘤免疫,但其在瘤微环境 (TME) 中的作用尚不清楚.
了解SEMA4D的功能对于开发新型癌症免疫疗法至关重要.

研究的目的:

为了研究SEMA4D在各种瘤类型中的表达模式和免疫细胞透.
分析SEMA4D表达和关键免疫参数 (如TME,免疫检查点,瘤突变负荷 (TMB) 和微卫星不稳定性 (MSI) 之间的相关性.
评估在癌症免疫治疗中准SEMA4D的治疗潜力.

主要方法:

利用多个生物信息学数据集来分析SEMA4D表达和免疫细胞透.
进行了免疫组织化学,RT-qPCR和流细胞计,以验证TME中的SEMA4D表达和分布.
评估了SEMA4D与瘤透淋巴细胞 (TILs),T细胞枯竭,免疫检查点,TMB和MSI之间的关系.

主要成果:

在许多癌症类型中,SEMA4D显著过度表达,并且在TME中的免疫细胞中得到丰富.
SEMA4D表达与TILs,MSI,TMB和T细胞耗尽相关的免疫检查点具有积极的相关性.
实验验证证证实了SEMA4D过度表达及其在TME中的存在,SEMA4D水平降低与恢复的T细胞功能有关.

结论:

SEMA4D在调节瘤免疫力和TME方面发挥着重要作用.
向SEMA4D是一个有希望的策略,通过减轻T细胞耗尽来提高癌症免疫疗法的有效性.

关键词:

在SEMA4D中,我们可以使用SEMA4D.CD8+ T 细胞的耗尽.免疫透免疫透是什么?胰腺癌是一种癌症.瘤微环境是一个微环境.

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