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增加对不匹配的反应修复有能力的直肠癌用颗粒辐射和DNA损伤反应抑制剂进行免疫治疗-临床前证据

Cristian J Salazar-Vilches¹, Daniel K Ebner¹, Jake A Kloeber¹

¹Department of Radiation Oncology, Mayo Clinic, Rochester, MN 55905, USA.

|February 27, 2026

概括

高LET粒子辐射,DNA损伤反应抑制剂 (DDRi) 和免疫疗法对pMMR结肠直肠癌显示出希望. 这些临床前发现表明,当结合使用时,可以增强免疫反应和瘤控制.

科学领域:

在瘤学瘤学.
辐射瘤学辐射瘤学
免疫治疗是一种免疫疗法.

背景情况:

晚期癌症治疗方式的临床前评估.
专注于不匹配修复熟练 (pMMR) 的结直肠癌模型.

研究的目的:

系统审查临床前文献.
在pMMR结直肠癌中研究高LET颗粒疗法,DDRi和免疫疗法.

主要方法:

系统性文献综述 (2014-2025 年).
包括关于粒子放射治疗 (质子,α,碳) 或X射线辐射的研究.
在pMMR结直肠癌模型中分析与DDRi和/或免疫检查点抑制剂 (ICI) 的组合.

主要成果:

高LET辐射增强免疫细胞死亡和免疫透.
同时的DDRi增加了DNA损伤和细胞质DNA.
与ICI结合治疗可以改善局部控制和全身抗瘤免疫力.

结论:

高LET粒子辐射和DDRi与ICI显示在pMMR直肠腺癌中具有显著的临床前免疫刺激作用.
这些组合显示出增加免疫疗法响应率的潜力.
临床证据将在附带的手稿中呈现.

关键词:

DNA损伤反应抑制剂抑制剂免疫疗法免疫疗法微粒疗法是一种微粒疗法.这是直肠癌.

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