肠道微生物组和癌症对免疫检查点抑制剂的反应
Francesca S Gazzaniga1, Dennis L Kasper2
1Department of Pathology and Krantz Family Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.
The Journal of clinical investigation
|February 3, 2025
概括
肠道细菌显著影响癌症免疫疗法的有效性. 便微生物种植表明,特定的肠道微生物可以增强对免疫检查点抑制剂 (ICI) 的反应,提供新的治疗途径.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 微生物学 微生物学
背景情况:
- 免疫检查点抑制剂 (ICI) 对于癌症免疫疗法至关重要,但患者的反应率有所变化.
- 新出现的证据突出显示了肠道微生物组在调节胃肠道瘤以外的ICI疗效方面的作用.
研究的目的:
- 审查肠道微生物组与ICI反应之间的关系.
- 在临床前和临床环境中探索影响ICI疗效的细菌物种.
- 讨论微生物组介导的抗瘤免疫和治疗转化机制.
主要方法:
- 对临床前小鼠瘤模型的分析,研究细菌对ICI反应的贡献.
- 对癌症患者的肠道微生物组进行比较,这些患者对ICI有反应,而对ICI没有反应.
- 对小鼠和患者的便微生物群移植 (FMTs) 的评估,以评估它们对ICI疗效的影响.
主要成果:
- 在临床前模型中,特定的开始性肠道细菌促进了对ICI的抗瘤反应.
- 响应和不响应的癌症患者表现出不同的微生物组合.
- 来自ICI响应者的FMT可以恢复非响应者的ICI敏感性,尽管响应是可变的.
结论:
- 肠道微生物组是ICI在癌症治疗有效性的关键决定因素.
- 了解特定的细菌作用和机制可以指导开发基于微生物组的疗法.
- FMT代表了一种有希望的,尽管有变化的,克服ICI阻力的战略.
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