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Updated: Jul 19, 2025

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在患有固体瘤的患者中,癌症倾向突变和克隆性血液形成之间的关联
Sebastià Franch-Expósito1,2, Miika Mehine1,2, Ryan N Ptashkin2,3
1Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, NY.
JCO precision oncology
|August 10, 2023
概括
基因损伤反应基因的遗传突变与固体瘤患者的克隆血液形成 (CH) 有关. 这种关联可能会增加二次白血病的风险,强调需要加强监测.
科学领域:
- 在瘤学瘤学.
- 遗传学 遗传学 是一个
- 血液学 血液学 血液学
背景情况:
- 克隆性造血 (CH) 是造血克隆的扩张,受老化和吸烟等因素的影响.
- 癌症倾向基因中的生殖线突变与固体瘤患者的CH之间的关系仍然未得到充分研究.
研究的目的:
- 调查罕见致病性或可能致病性 (P/LP) 生殖系变体和固体瘤患者的CH之间的关联.
- 探索生殖系突变和CH之间的相互作用,特别是在DNA损伤反应 (DDR) 基因中.
主要方法:
- 分析了46906名接受MSK-IMPACT测试的患者的潜在瘤血液配对测序数据.
- 调查CH和P/LP生殖系变异之间的关联,包括ATM,TP53和CHEK2等特定基因.
主要成果:
- 在携带P/LP生殖系突变的患者中观察到CH-阳性患者的丰富.
- 在ATM和CH中发现了P/LP生殖系变异之间显著的关联;双基失活化被认为是调解者.
- 在DDR基因中具有P/LP生殖系突变的患者中,CH-PPM1D突变被耗尽了 (ATM,CHEK2,TP53).
- 患有固体瘤,P/LP生殖系突变,CH突变和马赛克染色体变异的患者面临二次白血病的风险增加.
- 在TP53的生殖系变异独立预测二次白血病 (HR,36;P<.001).
结论:
- 在固体瘤患者的DDR基因内,遗传变异和CH突变之间存在强烈的联系.
- 鉴定到的关联可能有助于加强针对特定生殖线突变的癌症患者的CH和相关疾病的临床监测.
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