双CHEK2致病和低风险变体和相关的癌症表型
Brittany L Bychkovsky1,2,3, Nihat B Agaoglu1,4,5, Carolyn Horton6
1Division of Cancer Genetics and Prevention, Dana-Farber Cancer Institute, Boston, Massachusetts.
两种低风险 (LR) CHEK2变体显示癌症风险与野生类型个体相似. 然而,一种病原性 (PV) 和一种LR CHEK2变异可能会增加癌症透率,这需要进一步研究CHEK2 LR变异.
科学领域:
- 遗传学 是一个遗传学.
- 在瘤学瘤学.
- 癌症的倾向 癌症的倾向
背景情况:
- CHEK2致病变体 (PVs) 与癌症有关,特别是早期发病的乳腺癌.
- 低风险 (LR) CHEK2变体 (p.I157T,p.S428F,p.T476M) 是常见的,但它们与癌症倾向的关联尚不清楚.
研究的目的:
- 为了研究双性CHEK2变异的个体的癌症表型,专注于LR变异.
- 为了比较两个LR变体,一个PV和一个LR变体以及对照组的个体之间的癌症风险.
主要方法:
- 对36821个接受基因检测的人进行了回顾性观察队列研究.
- 基于CHEK2基因型的癌症表型分析 (任何癌症,多种原发性癌症,女性乳腺癌) (野生型,单LR,两个LR,单PV,一个PV和一个LR).
主要成果:
- 患有两种CHEK2LR变异的个体的癌症患病率与野生型和单个LR变异组相似.
- 与单个PV携带者 (76.8%) 相比,具有一个CHEK2 PV和一个LR变异的个体具有更高的,虽然在统计学上不显著的,先前癌症诊断率 (95.0%).
- 一个PV和一个LR变异的女性携带者患乳腺癌诊断率 (86.7%) 比单个PV携带者 (67.1%) 高,也没有统计学意义.
结论:
- 双性CHEK2 LR变体似乎没有显著增加癌症风险.
- 一个CHEK2 PV和一个LR变体的组合可能与更透的癌症表型有关.
- 需要对CHEK2 LR变异进行进一步的研究,以确定它们作为癌症风险的潜在遗传修饰剂的作用.
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