跨癌症分析揭示了治疗性放射治疗期间免疫调节的明显模式
Badr Id Said1, Giselle M Boukhaled2, Benjamin H Lok1
1Princess Margaret Cancer Centre and University Health Network; Department of Radiation Oncology, University of Toronto.
International journal of radiation oncology, biology, physics
|September 19, 2025
概括
放射治疗 (RT) 通过增加单细胞和减少自然杀手和B细胞来改变免疫系统. 患有远程转移的患者的CD4效应T细胞下降,表明RT对固体瘤中的免疫细胞产生影响.
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) 是治愈癌症治疗的关键组成部分.
- 对于RT的全身免疫效应还没有完全理解.
- 研究RT诱导的免疫变化对于优化癌症治疗至关重要.
研究的目的:
- 为了检查在接受固体瘤治愈性RT的患者中的系统免疫特征变化.
- 为了将观察到的免疫变化与患者的结果相关联.
主要方法:
- 患有局部头部和部,肺部,直肠或软组织肉瘤的患者接受治疗RT.
- 血液样本在基线和RT后收集.
- 多重的Luminex细胞因子测定和质量细胞计被用来分析免疫细胞群和细胞因子概况.
主要成果:
- RT导致C-X-C动机化学因联体12和单细胞化学吸引蛋白-1的水平增加.
- 质量细胞测量显示,RT后单细胞增加,自然杀手细胞和B细胞减少.
- 在患有远程转移的患者中观察到循环CD4效应T细胞的显著减少.
结论:
- 在各种固体瘤中,RT诱导了一种保存的免疫变化的模式.
- 这些变化包括突口髓状细胞的增加和淋巴细胞的减少.
- 减少的CD4效应T细胞与远程转移的发展相关,这表明预后价值.
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