KRAS和BRAF突变在结直肠癌中免疫细胞透中的对立作用 - - 对免疫疗法的可能影响
Sofia Edin1, Björn Gylling1, Xingru Li1
1Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden.
British journal of cancer
|December 1, 2023
概括
结直肠癌 (CRC) 中瘤免疫细胞透与微卫星不稳定性和BRAF/KRAS突变相关. 细胞毒性T细胞在CRC亚型中具有积极的预后价值,有助于治疗决策.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 遗传学 是一个遗传学.
背景情况:
- 免疫反应对于结直肠癌 (CRC) 预后和免疫治疗至关重要.
- 了解与分子标记物相关的瘤免疫细胞透具有临床意义.
研究的目的:
- 探索瘤免疫细胞透和CRC中确定的分子标记物之间的关系.
- 调查免疫细胞透,特别是细胞毒性T细胞的预后价值.
主要方法:
- 多重免疫组织化学和多谱成像分析了257名CRC患者的免疫细胞透 (CD8+,T-bet+,FoxP3+,CD20+,CD68+).
- 在608名CRC患者的独立队列中进行验证.
主要成果:
- 较高的免疫细胞透与微卫星不稳定性相关.
- BRAF突变与增加相关,KRAS突变与免疫细胞透率降低相关,特别是细胞毒性和Th1细胞.
- 细胞毒性T细胞在所有CRC亚型中表现出积极的预后重要性.
结论:
- 对MSI,BRAF/KRAS状态和细胞毒性T细胞透的综合评估为CRC提供了预后见解.
- 这种方法可以指导结直肠癌中免疫治疗反应的预测.
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