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单细胞转录组分析揭示了在鼻癌中通过免疫化学疗法诱导的不断发展的瘤微环境
Yaofei Jiang1,2, Weixin Bei1, Wangzhong Li3
1Department of Nasopharyngeal Carcinoma, State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China.
Clinical and translational medicine
|October 17, 2024
概括
免疫化疗在鼻癌 (NPC) 中重塑瘤微环境. 响应者表现出增强的CD8+T细胞活性,而非响应者则具有升高的免疫检查点基因,表明抵抗机制.
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:
- 高风险的转移性局部晚期鼻癌 (NPC) 治疗趋势包括免疫化疗.
- 了解NPC中单细胞反应异质性仍然至关重要.
研究的目的:
- 为了研究瘤微环境 (TME) 通过免疫化学疗法对未经治疗的NPC进行调制.
- 在单细胞水平上确定反应和抗性的机制.
主要方法:
- 从治疗前和治疗期间的配对NPC样本中单细胞和散装RNA测序.
- 对87191个细胞进行生物信息分析,以评估TME变化.
主要成果:
- 免疫化学疗法重塑了TME,对抗瘤信号进行上调和对瘤信号进行下调.
- 完全响应者表现出增强的CD8+T细胞细胞毒性活性和干扰素-玛生产,促进T细胞成熟.
- 非响应者显示内皮细胞分化/缺氧升高,基线免疫检查点基因更高,瘤抗原呈现下降.
结论:
- 这项研究绘制了NPC中免疫化学疗法对TME调节的地图.
- 确定了响应者和非响应者之间的T细胞表型和TME组件的关键差异.
- 提供了对潜在的治疗策略和抵抗机制的见解.
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