计时癌症免疫疗法反应
Catherine L Wang1,2, Xue Zhang2,3, Chi V Dang2,3,4,5
1Medical Scientist Training Program, Johns Hopkins University School of Medicine, Baltimore, Maryland.
Cancer research
|June 26, 2024
概括
癌症免疫疗法的有效性是昼夜的,在晚上达到顶峰. 这种受T细胞贩运和PD-L1表达影响的免疫定时,为优化癌症治疗提供了新的策略.
科学领域:
- 免疫学 免疫学 免疫学
- 时间生物学 时间生物学
- 癌症研究 癌症研究
背景情况:
- 癌症免疫疗法已经彻底改变了治疗方法,但反应的变化仍然是一个挑战.
- 新出现的证据表明,生物节奏会影响免疫系统的功能.
- 了解这些节奏可能会打开新的治疗策略.
研究的目的:
- 研究昼夜节律对癌症免疫治疗反应的影响.
- 确定驱动观察到的时间效应的潜在机制.
- 探索慢性疗法在癌症治疗中的临床影响.
主要方法:
- 分析了两项最近的研究,研究了小鼠癌症模型中的免疫治疗反应.
- 对白天T细胞贩运和PD-L1表达在髓状细胞上的研究.
- 发现与人类癌症免疫治疗临床试验数据的相关性.
主要成果:
- 免疫疗法反应表现出显著的昼夜模式,在晚上 (休息阶段结束) 达到顶峰.
- 这种节律性与T细胞运动的每日波动和编程死亡配体1 (PD-L1) 表达有关.
- 循环免疫行为在不同癌症模型中是一致的,并且在人类患者中观察到.
结论:
- 瘤免疫在昼夜时钟上运行,影响免疫疗法的有效性.
- 一天中的时间是癌症免疫治疗中一个关键的,以前未被识别的变量.
- 对免疫昼夜时钟的进一步研究对于提高临床免疫治疗结果至关重要.
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