非清细胞细胞癌具有免疫冷表型,影响对免疫检查点抑制剂的反应
Hiroki Ishihara1, Yu-Yu Liu2, Riu Yamashita3
1Tokyo Women's Medical University Shinjuku-ku, Tokyo Japan.
Molecular cancer research : MCR
|January 27, 2026
概括
与清晰细胞RCC (ccRCC) 相比,非清晰细胞癌 (nccRCC) 患者的免疫检查点抑制剂 (ICI) 治疗结果较差. 这是由于"免疫冷"瘤微环境 (TIME) 具有较少的免疫细胞,降低了ICI治疗的有效性.
科学领域:
- 在瘤学瘤学.
- 免疫治疗是一种免疫疗法.
- 细胞癌研究 细胞癌研究
背景情况:
- 关于免疫检查点抑制剂 (ICI) 治疗结果和非清细胞脏细胞癌 (nccRCC) 瘤免疫微环境 (TIME) 概况的数据有限.
- 了解这些因素对于改善nccRCC的治疗策略至关重要.
研究的目的:
- 为了比较一线ICI联合治疗在nccRCC与清细胞RCC (ccRCC) 的有效性.
- 在nccRCC.中研究全基因组基因表达和瘤透免疫细胞 (TIIC) 档案.
- 阐明nccRCC中ICI耐药性的潜在机制.
主要方法:
- 对266名接受一线ICI联合治疗的RCC患者的回顾性分析.
- 通过RNA测序进行全基因组基因表达概况分析.
- 使用流细胞计进行瘤透免疫细胞 (TIIC) 分析.
主要成果:
- 与ccRCC患者相比,nccRCC患者 (21%的队列) 的无进展生存期 (PFS) 和总生存期 (OS) 显著较短.
- 基因表达分析揭示了nccRCC.中与免疫相关的和血管生成相关的通路的下调.
- nccRCC表现出一种"免疫感冒"的TIME表型,TIICs减少,包括CD8+T细胞,与较差的生存结果相关.
- 与双 ICI 治疗相比,ICI 和 VEGFR-TKI 联合治疗在 ccRCC 中显示出更明显的生存益处.
结论:
- nccRCC的特点是"免疫感冒"的时间,标志着TIICs的减少.
- 这种免疫冷现象型有助于免疫相关途径的下调,这可能解释了ICI组合治疗在nccRCC中的效率降低.
- 进一步研究克服nccRCC中的免疫逃避是有必要的.
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