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瘤突变负担作为毛囊淋巴瘤的预后生物标志物
Marta Lafuente1,2, Ramón Diez-Feijóo1,2,3, Marta García-Recio4
1Group of Applied Clinical Research in Hematology, Cancer Research Program Hospital del Mar Research Institute, 08003 Barcelona, Spain.
Cancers
|March 14, 2026
概括
高瘤突变负担 (TMB) 预测毛囊淋巴瘤 (FL) 患者接受免疫化疗 (ICT) 治疗的结果更好. 这一发现有助于识别患有早期复发风险的患者,改善了超出当前临床指数的预后准确性.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 血液学 血液学 血液学
背景情况:
- 毛囊性淋巴瘤 (FL) 是最常见的惰性非霍奇金淋巴瘤.
- 在20%的FL患者中,24个月内出现早期复发 (POD24),这表明预后不佳.
- 目前的预后指数不能充分识别患POD24高风险的患者.
研究的目的:
- 研究瘤突变负担 (TMB) 作为毛囊淋巴瘤 (FL) 的预后生物标志物.
- 评估TMB与FL临床结果和分子特征的关联.
- 为了确定TMB是否可以改善早期进展风险的患者的识别.
主要方法:
- 瘤突变负担 (TMB) 用409个基因组的下一代测序来估计.
- 该研究包括119名FL等级1-3A的患者,接受前线免疫疗法或免疫化学疗法 (ICT) 治疗.
- 在临床变量,遗传突变和生存结果方面分析了TMB.
主要成果:
- 较高的TMB与更长的无进展生存时间,淋巴瘤特异性生存时间和整体生存时间有关.
- 患有高TMB (>2.55突变/Mb) 的患者在mTORC1途径中发生的突变较少.
- 在低TMB亚组中观察到更高比例的早期复发 (POD24) 患者.
- 在对结的诊断复发样本中,TMB保持稳定,具有一些分子景观变化.
结论:
- 瘤突变负担 (TMB) 显示出作为毛囊淋巴瘤 (FL) 的预后生物标志物的潜力.
- TMB提供了超越现有临床指数的分子洞察力.
- TMB有助于识别FL患者在ICT后更高风险的早期进展.
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