在非转移性清细胞脏细胞癌中对新辅助剂尼沃卢马布的免疫调节反应
Nirmish Singla1,2, Thomas R Nirschl3,4,5, Aleksandar Z Obradovic6
1Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Park 213, Baltimore, MD, 21287, USA. nsingla2@jhmi.edu.
Scientific reports
|January 16, 2024
概括
在腎切除術前的新輔助性尼沃盧瑪布 (抗PD-1) 治療會在高風險清晰細胞腎細胞癌 (ccRCC) 中誘發發炎性腫瘤狀態. 瘤免疫透预测反应,支持外科手术期间的免疫检查点抑制 (ICI) 策略.
科学领域:
- 尿瘤学 尿瘤学
- 免疫治疗是一种免疫疗法.
- 细胞癌研究 细胞癌研究
背景情况:
- 高风险的非转移性透明细胞细胞癌 (ccRCC) 在腎切除术后具有显著的复发率.
- 创新的外科手术周围策略对于改善这些患者的治疗结果至关重要.
- 针对PD-1的免疫检查点抑制剂 (ICI) 是一个有前途的治疗途径.
研究的目的:
- 评估新辅助药尼沃卢马布在非转移性ccRCC中脏切除术前的安全性和免疫效应.
- 阐明PD-1抑制对瘤免疫细胞群的影响.
- 为了将瘤免疫微环境与抗PD-1反应相关联.
主要方法:
- 预期的I期临床试验,涉及15名可评估的非转移性ccRCC患者.
- 在切除术前使用新辅助药尼沃卢马布.
- 对瘤组织的分析,以评估免疫细胞种群,并与治疗反应相关联.
主要成果:
- 尼沃卢马布在原发性ccRCC瘤内持续诱导了一种促炎状态.
- 初级瘤的基线免疫细胞透与尼沃卢马布反应相关.
- 尼沃卢马布增加了CTLA-4表达;切除术增加了循环中的sPD-L1,sPD-L3 (sB7-H3) 和s4-1BB.
结论:
- 新辅助药尼沃卢马布显示高风险ccRCC的潜力,诱导有利的免疫变化,而瘤是在现场.
- 瘤免疫透是预测PD-1抑制反应的关键生物标志物.
- 这些发现支持开发外科手术期间的ICI策略,可能是组合疗法.
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