CD8+ T 细胞子集作为预测癌症免疫疗法检查点治疗结果的生物标志物
Rosaely Casalegno Garduño1, Alf Spitschak1, Tim Pannek1
1Institute of Experimental Gene Therapy and Cancer Research, Rostock University Medical Center, 18057 Rostock, Germany.
Biomedicines
|April 29, 2025
概括
免疫检查点封锁 (ICB) 在癌症免疫治疗中表现有前途,但有效性有限. 新的生物标志物,特别是循环的CD8+T细胞,可以预测患者对ICB的反应,改善治疗决策.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 癌症研究 癌症研究
背景情况:
- 免疫检查点封锁 (ICB) 已经彻底改变了癌症免疫疗法,为一些患者提供了更好的生存率.
- 然而,有限的疗效和与免疫相关的不良影响需要更好的预测生物标志物.
- 癌症异质性和E2F1和MYC等瘤驱动因素阻碍了免疫治疗的有效性.
研究的目的:
- 审查ICB治疗中癌症驱动因素和免疫反应之间的相互作用.
- 突出T细胞的潜力,特别是CD8+T细胞,作为ICB疗效的预测生物标志物.
- 讨论当前生物标志物的局限性和新方法的优势.
主要方法:
- 文献综述侧重于癌症驱动因素,免疫逃避机制和ICB治疗中的生物标志物发展.
- 对现有的FDA批准的生物标志物 (TMB,PD-L1) 及其局限性的分析.
- 探索T细胞子集 (瘤透和循环) 作为潜在的预测生物标志物.
主要成果:
- 瘤透的CD8+ T细胞与积极的结果相关,但很难获得.
- 循环T细胞子集,包括记忆和原始体耗尽的T细胞,作为可访问的生物标志物显示出希望.
- 最终耗尽的T细胞与ICB反应不佳有关.
结论:
- 将现有的生物标志物 (TMB/PD-L1) 与CD8+T细胞频率相结合,可以提高预测准确度.
- 循环T细胞为监测ICB疗效提供了更实用的方法.
- 未来的研究应侧重于结合癌症和免疫特征的计算模型,以实现个性化免疫疗法分层.
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