整体外体序列测定在患有结直肠多重症的患者中识别了新的致病性生殖系变异
Wellington Dos Santos1, Ariane S Pereira1,2, Thais Laureano1
1Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, Brazil.
World journal of gastroenterology
|August 14, 2025
概括
这项研究使用全外体序列测序来识别与APC和MUTYH变体负的患者中与多重症相关的新基因. 这些发现支持将多重症的基因查范围扩大到常见基因之外.
科学领域:
- 遗传学和基因组学 遗传学和基因组学
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 腺多重症增加了结直肠癌的风险,APC和MUTYH是主要的兴趣基因.
- 最近的发现将其他基因 (例如,POLE,NTHL1) 与多重症联系起来,突出显示了临床和病因异质性.
- 了解多症的遗传基础对于准确的诊断和风险评估至关重要.
研究的目的:
- 在疑似多症的患者中识别基因变异,这些患者不携带APC或MUTYH的突变.
- 利用整体外因子测序 (WES) 来全面分析变异格局.
- 扩大对导致多症表型的遗传因素的理解.
主要方法:
- 对27名怀疑有多重症的参与者进行了生殖线整体外体测序.
- 对每个参与者收集了临床病理,个人和家庭病史数据.
- 生物信息分析用于识别和分类遗传变异.
主要成果:
- 在12名参与者中发现了17种致病或可能致病的变体.
- 在与Wnt/β-catenin信号传递 (ST7L,A1CF,DKK4) 和DNA修复 (NTHL1,PNKP,PMS2) 相关的基因中发现了变异.
- 在一个患有经典多发症和家族病史的年轻患者身上,发现了FRK基因的新型变异.
结论:
- 在对APC和MUTYH变体负的患者中,发现了可能与多重症相关的新基因.
- 这些发现强调了多重体的遗传异质性.
- 下一代测序 (NGS) 对于扩大与多重症相关的遗传变异的检测非常有价值.
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