叶酸受体α表达和瘤免疫微环境在患有宫癌的患者
Shu Yazaki1, Yohei Chiba1, Yuki Kojima1
1Department of Medical Oncology, National Cancer Center Hospital, Tokyo, Japan.
概括
叶酸受体α (FRα) 在患有低PD-L1表达的宫癌患者中更为常见. 向FRα可能有利于PD-L1状态低或负的患者,这表明了新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 病理学 病理学 病理学
背景情况:
- 叶酸受体α (FRα) 是细胞表面蛋白质,也是潜在的癌症治疗点.
- 了解FRα在瘤免疫微环境中的作用对于宫癌治疗至关重要.
研究的目的:
- 在宫癌患者中研究FRα表达与瘤免疫微环境之间的关联.
- 探索FRα,PD-L1表达和患者预后之间的相关性.
主要方法:
- 检查了123个宫癌瘤部分 (状细胞癌和非状细胞癌).
- 通过免疫组织化学 (克隆26B3) 评估FRα表达.
- 评估的PD-L1表达 (组合阳性得分 - CPS),CD3和CD8细胞密度.
主要成果:
- 在72.4%的患者中发现了FRα阳性,根据组织学而异 (55.2%的SCC与92.9%的非SCC).
- 在75.6%的患者中观察到PD-L1阳性 (CPS ≥1),在SCC中更频繁 (83.5%对66.1%).
- FRα表达与PD-L1 (r=-0.22) 和CD8+细胞 (r=-0.19) 的负相关性较弱. 高FRα与预后不佳相关,特别是在PD-L1 CPS ≥10组 (HR:4.10).
结论:
- 在患有PD-L1CPS<10的宫癌患者中,FRα表达率高于患有CPS≥10.0的患者.
- 向FRα可能是患有低或负PD-L1表达的宫癌患者的可行的治疗策略.
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