同刺激性和免疫检查点分子表达在外围免疫细胞上不同 根据年龄,在健康的捐赠者和患有头部和部状细胞癌的患者之间有所不同
Lisa K Puntigam1, Ayla Grages1, Julius M Vahl1
1Department of Otorhinolaryngology, Head & Neck Surgery, Ulm University Medical Center, Frauensteige 12, 89075 Ulm, Germany.
Cancers
|October 16, 2025
概括
免疫检查点分子 (ICM) 表达随着年龄的增长而增加,与健康个体不同,在头部和部状细胞癌 (HNSCC) 患者中. 这一发现支持针对HNSCC的适合年龄的免疫治疗策略.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 衰老研究研究 衰老研究
背景情况:
- 瘤透性淋巴细胞和外围免疫细胞上的免疫检查点分子 (ICM) 提供了对头部和部状细胞癌 (HNSCC) 免疫状态和治疗反应的洞察力.
- 在HNSCC患者中,ICM的年龄依赖的表达模式在很大程度上仍然没有特征,这阻碍了个性化的治疗策略.
研究的目的:
- 在健康个体和HNSCC患者中研究免疫检查点分子 (ICM) 和共刺激分子的与年龄相关的表达.
- 确定年龄是否影响HNSCC中的ICM表达,可能影响免疫疗法的疗效.
主要方法:
- 来自健康捐赠者 (n=30,年龄21-84岁) 和HNSCC患者 (n=37,年龄37-94岁) 的外周血液单核细胞 (PBMC) 通过流细胞计分析.
- 流细胞计利用CD4/CD8标记物与共刺激分子 (CD137,OX40,GITR,CD27) 和ICM (PD-1,CTLA4,BTLA,LAG3,TIM3) 一起进行.
主要成果:
- 健康的捐赠者显示,随着年龄的增长,ICM表达的统计显著下降.
- 随着年龄的增长,HNSCC患者的ICM表达显著增加,特别是CD4+T细胞上的PD-1 (p=0.001).
- 同刺激分子表达,如CD27在CD4+T细胞上的CD27 (p=0.003),在HNSCC患者下降. 阴性HPVHNSCC显示CD27在CD8+,CD4+和CD39+T细胞表达的年龄依赖性下降.
结论:
- 年龄显著影响HNSCC患者的ICM和共刺激分子表达,ICM通常随着年龄的增长而增加.
- 这种与年龄相关的免疫标志物调节为开发针对HNSCC (包括老年患者) 的个性化免疫治疗方法提供了关键数据.
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