在局部发达的HPV16驱动恶性瘤中,T细胞受体对化学辐射的反应的决定因素
Pablo Nenclares1,2, Adrian Larkeryd3, Floriana Manodoro4
1Radiotherapy and Imaging Division, The Institute of Cancer Research, London, United Kingdom.
Frontiers in oncology
|January 18, 2024
概括
化学辐射疗法 (CRT) 影响抗癌免疫力. 在HPV驱动的癌症中监测T细胞受体 (TCR) 变化揭示了特定的TCR模式预测治疗反应,并突出了免疫系统在CRT成功中的作用.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 基因组学就是基因组学.
背景情况:
- 化学辐射 (CRT) 对抗癌症免疫反应的影响是公认的,但尚未完全理解.
- 人类乳头瘤病毒 (HPV) 驱动的癌症提供独特的抗原,用于监测CRT期间的T细胞受体 (TCR) 变化.
研究的目的:
- 为了研究使用CRT治疗的HPV16阳性癌症中TCR谱系动态和治疗反应之间的关系.
- 为了确定TCR特征预测化学放射治疗后的临床结果.
主要方法:
- 在局部晚期HPV16阳性癌症患者中,在CRT前后进行了瘤内和外周TCR测序.
- 利用in silico管道通过表位特异性对TCRs进行集群,并预测对HPV16表位特异的亲和力.
主要成果:
- 瘤内多样性和外围TCR聚类预测了CRT的反应.
- 受访者在治疗后表现出增加的外围TCR克隆性和克隆相关性.
- 维持基线TCR克隆型和通过内TCRs识别HPV16与治疗成功有关.
结论:
- 基线TCR特征和CRT诱导的外围T细胞变化与治疗结果相关.
- 在CRT期间,维持和扩展先前存在的T细胞克隆对于有效的抗癌免疫是至关重要的.
- 免疫系统在标准CRT协议对HPV驱动癌症的疗效中起着关键作用.
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