对直肠癌目前常见的新辅助疗法策略进行比较:一项三臂回顾性研究
Xiao Zhang1, Yang An1, Yuxin Liu1
1Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
Frontiers in cellular and infection microbiology
|December 25, 2025
概括
全新辅助疗法 (TNT) 和新辅助免疫疗法 (PD-1) 的病理完整反应率高于直肠癌的新辅助化疗和放射治疗. 需要进一步的研究来提高MRI的准确性,并了解肠道微生物群.
科学领域:
- 在瘤学瘤学.
- 胃肠病学 胃肠病学
- 免疫学 免疫学 免疫学
背景情况:
- 局部晚期直肠癌 (LARC) 管理正在与新辅助疗法一起发展.
- 全新辅助疗法 (TNT) 和新辅助免疫疗法是关键的策略.
- 这些孤立方法的比较疗效尚不清楚.
研究的目的:
- 为了比较新辅助化学放射治疗 (nCRT),TNT和PD-1免疫治疗在LARC中的疗效.
- 为了评估MRI准确度,在新辅助疗法后重新分期直肠癌.
- 探索肠道微生物群在治疗反应中的作用.
主要方法:
- 160名LARC患者的回顾性研究 (pMMR/非MSI-H).
- 三个臂:nCRT (n=81),TNT (n=42),PD-1 (n=37) 这三种臂分别为
- 对PD-1组的临床数据,MRI准确度和肠道微生物组的分析.
主要成果:
- 两组之间没有显著的基线差异.
- 病理完整响应 (pCR) 率:nCRT 25.9%,TNT 40.5%,PD-1 45.9% (p=0.048) 的情况.
- 磁力共振成像重置阶段的准确性低于最佳,特别是在TNT和PD-1组. 在PD-1组中,pCR和非pCR患者的肠道微生物群多样性类似.
结论:
- 与LARC的nCRT相比,TNT和PD-1疗法提供了优越的瘤回归和pCR率.
- 使用TNT和PD-1可以实现增强局部瘤控制.
- 改善直肠MRI准确度和肠道微生物组研究对于精准医学至关重要.
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