辐射疗法和骨髓衍生的抑制细胞:打破它们的癌症伙伴关系
Kyra M Boorsma Bergerud1, Matthew Berkseth2, Drew M Pardoll3
1College of Biological Sciences, University of Minnesota, Minneapolis, Minnesota.
International journal of radiation oncology, biology, physics
|December 2, 2023
概括
辐射疗法 (RT) 可以通过增加免疫抑制性髓质衍生抑制细胞 (MDSCs) 来促进癌症治疗耐药性. 针对这些MDSC为未来的癌症治疗提供了一个有希望的战略.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 辐射疗法 辐射疗法
背景情况:
- 放射治疗 (RT) 是癌症治疗的基石.
- 越来越多的证据将RT与免疫抑制瘤微环境 (TME) 联系起来.
- 骨髓原抑制细胞 (MDSCs) 是RT诱导的免疫抑制和治疗耐药性的关键参与者.
研究的目的:
- 审查放射治疗如何通过TME中的免疫抑制MDSCs促进瘤抵抗.
- 讨论目前的研究和未来针对MDSC的战略,以改善癌症治疗.
主要方法:
- 对研究RT对TME和MDSC的影响的文献综述.
- 对参与MDSC招募和RT后功能的分子途径的分析.
- 检查针对MDSCs的治疗策略.
主要成果:
- 转基因对MDSCs和瘤相关巨细胞 (TAMs) 进行上调,将TME转向免疫抑制.
- 由RT引起的血管损伤,缺氧和细胞因子信号传递促进了MDSC的积累.
- MDSCs通过释放免疫抑制因子和降解L-氨酸来抑制抗瘤免疫力.
结论:
- 放射治疗可以通过激活免疫抑制性MDSCs来悖论地增强瘤的抵抗力.
- 向MDSC是一种有希望的未来临床策略,以克服RT诱导的免疫抑制并改善癌症治疗结果.
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