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在前列腺癌患者中,不匹配修复基因生殖系突变
Bangwei Fang1, Yu Wei2, Jian Pan2
1Department of Urology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College Fudan University, Shanghai 200032, China. 20211230012@fudan.edu.cn.
概括
在不匹配修复 (MMR) 基因中的致病性生殖系突变在1.52%的前列腺癌患者中被发现. 这些患者患有较早发病和更快的割抗性,这表明MMR基因突变测试是针对特定患者组的建议.
科学领域:
- 在瘤学瘤学.
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
背景情况:
- 前列腺癌 (PCa) 是全球癌症死亡的主要原因.
- 在PCa.中,DNA损伤修复 (DDR) 基因的生殖系突变,包括不匹配修复 (MMR) 基因,越来越多地被识别出来.
- 了解这些突变的患病率和临床影响对于个性化治疗策略至关重要.
研究的目的:
- 确定前列腺癌患者中MMR基因中致病性生殖系突变的频率.
- 评估MMR基因突变与临床病理学特征之间的关联.
- 评估MMR基因突变对割疗法的反应的影响.
主要方法:
- 对855名前列腺癌患者的生殖线测序数据的回顾性分析.
- 使用ACMG指南和数据库 (Clinvar,Intervar) 来评估突变的致病性.
- 在MMR基因突变阳性 (MMR+),其他DDR基因突变阳性 (DDR+MMR-) 和DDR阴性 (DDR-) 组之间比较临床病理学特征和割抵抗时间表.
主要成果:
- 在1.52% (13/855) 的患者中发现了致病性生殖系MMR基因突变.
- 与DDR-组相比,MMR+患者的发病年龄和初始前列腺特异抗原 (PSA) 水平显著降低.
- 与DDR+MMR- (16个月) 和DDR- (24个月) 两组相比,MMR+组的割抵抗时间 (8个月) 显著缩短.
结论:
- 应考虑对前列腺癌患者进行MMR基因突变测试,这些患者出现早期发病,初始PSA低,转移或早期割抵抗.
- 生殖线MMR基因突变与前列腺癌的独特临床特征和对标准治疗的反应较差有关.
- 这些发现支持将生殖基因检测纳入特定前列腺癌队列的管理.
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