患有早期结直肠癌的患者的生殖细胞基因组分析
G Mauri1, M Puzzono2, A Mannucci2
1Department of Hematology, Oncology and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milano, Italy.
ESMO gastrointestinal oncology
|February 6, 2026
概括
大约五分之一的早期结直肠癌 (EO-CRC) 病例与遗传综合征有关. 在FLCN和SDHAF2中确定了生殖系致病变体,这表明当前的指导方针可能低估了它们在EO-CRC中的重要性.
科学领域:
- 在瘤学瘤学.
- 遗传学 是一个遗传学.
- 胃肠病学 胃肠病学
背景情况:
- 早期结直肠癌 (EO-CRC) 的发病率不断上升.
- 关于EO-CRC遗传性癌症倾向综合征的流行情况的辩论.
- 在EO-CRC生殖基因测试小组中,非传统基因的代表性不足.
研究的目的:
- 调查EO-CRC患者生殖线变化的流行情况.
- 为了确定遗传性EO-CRC的新型遗传贡献者.
- 评估EO-CRC.中的多基因生殖系概况的临床实用性.
主要方法:
- 使用下一代测序和多重联结探头放大方法进行多基因生殖系概况.
- 对130名被诊断患有EO-CRC的患者进行了查.
- 分析生殖线变化与临床病理学变量之间的关联.
主要成果:
- 在18%的EO-CRC患者中发现了生殖系致病或可能致病变体 (PVs/LPVs).
- 在36%的患者中发现了未知意义的变异.
- 在两个患者中确定了FLCN和SDHAF2的生殖系PV,突出显示了当前指南中潜在的低估.
结论:
- 大约五分之一的EO-CRC病例与遗传性癌症倾向综合征有关.
- 在EO-CRC的指导方针中,FLCN和SDH基因通常不被包括在内,这可能导致低估PV/LPV.
- 在所有EO-CRC患者中推FLCN和SDHAF2的生殖线评估对于全面的遗传评估至关重要.
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