抗雄激素剥夺疗法在局部性前列腺癌中驱动了一种独特的免疫表型
Matthew C Dallos1,2, Aleksandar Z Obradovic3,4, Patrick McCann1
1Genitourinary Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York.
概括
抗雄激素剥夺疗法 (ADT) 迅速改变前列腺瘤的微环境,增加像CD8 T细胞和M1巨细胞这样的免疫细胞. 了解ADT的使用方法
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
背景情况:
- 雄激素剥夺疗法 (ADT) 是前列腺癌的主要治疗方法.
- 新出现的证据表明ADT影响瘤免疫微环境.
- 缺乏对ADT免疫时间和效果的准确理解.
研究的目的:
- 在ADT期间调查前列腺瘤微环境中的免疫学变化.
- 分析德加利克斯 (一种ADT形式) 在手术前不同时间点对免疫细胞表型的影响.
主要方法:
- 对49种前列腺原发性癌症的分析.
- 用德加利克斯治疗的瘤 (手术前4,7,14天) 与未治疗的瘤的比较.
- 利用下一代DNA/RNA测序和多重复合免疫光.
主要成果:
- 在几天内,ADT迅速诱导了炎症瘤微环境.
- 观察到激活的CD8 T细胞,调节性T细胞 (Tregs) 和M1-类巨细胞的增加.
- 瘤细胞显示MHC I/II类抗原呈现升高,CD47 ("不要吃我"信号) 降低.
结论:
- 针对ADT的时间对于优化与免疫调节器的联合疗法至关重要.
- 新辅助术前设置可能是这种联合治疗的理想选择.
- 需要进一步对这些发现进行前性验证.
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