对子宫内膜癌的免疫疗法的进展:对MMR状态和瘤微环境的洞察
Manel Albertí-Valls1, Sara Olave2, Anna Olomí3
1Oncologic Pathology Group, Biomedical Research Institute of Lleida (IRBLleida), University of Lleida (UdL), Av. Rovira Roure 80, 25198 Lleida, Spain.
Cancers
|December 17, 2024
概括
免疫疗法对晚期子宫内膜癌 (EC) 有希望,特别是在不匹配修复缺陷 (MMRd) 瘤中. 然而,瘤微环境 (TME) 因素影响反应,需要对抗性病例探索新的基于细胞的疗法.
科学领域:
- 妇科瘤学 妇科瘤学
- 免疫疗法是一种免疫疗法.
- 癌症基因组学 癌症基因组学
背景情况:
- 子宫内膜癌 (EC) 在晚期或复发阶段存在治疗挑战.
- 免疫疗法,包括免疫检查点抑制剂 (ICI),为EC管理提供了一个有前途的途径.
- 瘤不匹配修复 (MMR) 状态是EC免疫治疗反应的关键决定因素.
研究的目的:
- 审查目前的免疫疗法在子宫内膜癌的景观.
- 阐明MMR状态,瘤突变负担 (TMB) 和瘤微环境 (TME) 在ICI疗效中的作用.
- 讨论新兴的基于细胞的疗法,以克服EC的免疫疗法耐药性.
主要方法:
- 目前关于子宫内膜癌免疫治疗的文献综述.
- 对MMR缺乏 (MMRd) 和MMR熟练程度 (P) 对治疗结果的影响分析.
- 探索与ICI反应相关的TME特征,包括免疫透.
- 研究新的治疗策略,如CAR T细胞和TILs.
主要成果:
- 缺乏MMR (MMRd) 的EC瘤通常表现出更高的TMB和PD-L1表达,与更好的ICI易感性相关.
- ICI反应是复杂的,不仅受到MMR状态的影响,还受到TME组成 (热与冷) 的影响.
- 一些具有"热"TME的MMR熟练 (P) 瘤对ICI做出反应,表明多方面的反应预测因素.
- 在"冷"瘤中对ICI的耐药性需要使用替代策略.
结论:
- MMR 状态是免疫疗法对子宫内膜癌的反应的关键,但不是唯一的预测因素.
- 了解MMR状态,TMB和TME之间的相互作用对于优化ICI治疗至关重要.
- 新兴的基于细胞的疗法有潜力治疗免疫疗法耐药的EC,特别是在不良TME的MMRd瘤中.
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