TMB相关免疫透调节器 (MOTIF) 预测免疫疗法反应,并指导组合疗法
Zheng-Yu Qian1, Yi-Qian Pan1, Xue-Xin Li2
1Department of Medical Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Provincial Clinical Research Center for Cancer, Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou 510060, China.
Science bulletin
|February 6, 2024
概括
高瘤突变负担 (TMB) 不保证对免疫检查点抑制剂 (ICI) 的反应. 我们开发了MOTIF,这是一种预测CD8+T细胞透和ICI疗效的工具,识别EMC3作为负调节剂.
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:
- 免疫检查点抑制剂 (ICI) 在高瘤突变负担 (TMB) 的患者中显示出可变的疗效.
- 不充分的CD8+ T细胞透是ICI不响应的潜在原因,即使高TMB.
- 了解影响T细胞透的因素对于改善癌症免疫治疗至关重要.
研究的目的:
- 开发一种新的工具,MOTIF,以根据TMB水平预测CD8+T细胞透.
- 评估MOTIF反映癌症免疫周期和预测ICI疗效的能力.
- 确定参与调节T细胞透的特定基因和细胞类型.
主要方法:
- 利用来自30种癌症类型的9311个瘤样本的大量RNA测序数据来开发MOTIF.
- 分析了来自32种固体瘤类型的84个人类单细胞RNA测序数据集.
- 使用13个ICI治疗队列的预处理RNA测序数据验证的MOTIF.
主要成果:
- MOTIF准确地预测了CD8+ T细胞透和免疫检查点抑制剂的有效性.
- MOTIF反映了癌症免疫循环的完整性和缺陷.
- 确定EMC3作为CD8+T细胞透的负调节剂,在体内验证.
- 揭示了各种细胞类型在调节T细胞透中的多样性作用.
结论:
- MOTIF是通过评估CD8+T细胞透来预测ICI反应的宝贵工具.
- 识别EMC3等调节剂可以指导加强免疫治疗的策略.
- MOTIF提供了结合ICI与免疫刺激药物的见解,以改善治疗结果.
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