在转移性结直肠癌中的CCR5和CCL5
Benjamin L Schlechter1,2, Justin Stebbing3
1Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA Benjamin_Schlechter@DFCI.HARVARD.EDU.
Journal for immunotherapy of cancer
|May 8, 2024
概括
在晚期结直肠癌 (CRC) 中,较低的CCR/L5轴表达与更好的生存率相关,特别是在化疗加 cetuximab 时. 高表达率与免疫抑制有关,为CRC对治疗的耐药性提供了见解.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 基因组学就是基因组学.
背景情况:
- 化基因受体 (CCR) / 5 (L5) 连接体轴在癌症免疫中起着双重作用,影响瘤生长和免疫反应.
- 了解其在结肠直肠癌 (CRC) 中的特定功能对于开发有效治疗方法至关重要.
研究的目的:
- 研究CCR/L5轴在晚期结直肠癌 (CRC) 中的预后和预测价值.
- 探索CCR/L5表达与免疫细胞透和CRC中的免疫抑制标记物之间的相关性.
主要方法:
- 从高级CRC患者队列中分析基因组和转录组数据.
- 包括来自CALGB/SWOG 80405临床试验 (化疗 + cetuximab与bevacizumab) 的数据.
- 使用Caris NGS和CODEai测试进行全面的分子分析.
主要成果:
- 较低的CRC/L5轴表达与晚期CRC患者的整体存活率改善有关.
- 低CCR/L5表达的患者从化疗加上塞图西马布治疗中获得了特别的益处.
- 高CCR/L5表达与免疫抑制细胞 (Tregs,巨细胞,MDSCs,CAFs) 的透增加以及免疫检查点蛋白 (PD-1,PD-L1,CTLA4,等) 的水平升高相关. ) 的情况.
结论:
- CCR/L5轴是高级CRC的显著预后和预测因素.
- 高CCR/L5表达可能驱动免疫抑制瘤微环境,有助于CRC对抗癌免疫的抵抗力.
- 针对CCR/L5轴可能是CRC的新治疗策略.
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