一项测试,以全面捕捉家族性肺纤维化已知的遗传成分
Judith Villeneuve1, Élody Tremblay1, Nathalie Gaudreault1
1Institut Universitaire de Cardiologie et de Pneumologie de Québec and.
American journal of respiratory cell and molecular biology
|February 16, 2024
概括
一种针对家族性肺纤维化 (FPF) 的新遗传测试使得临床遗传测试成为可能. 这种实验室开发的测试 (LDT) 识别了已知的和潜在的新型FPF变异,有助于诊断和风险评估.
科学领域:
- 肺部医学 肺部医学
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 欧洲呼吸学会的指导方针强调对家族性肺纤维化 (FPF) 的基因检测.
- 缺乏一个实用的,标准化实验室开发的测试 (LDT) 临床实施.
- 20个基因中的遗传变异与成人发作的肺纤维化有关.
研究的目的:
- 开发和验证基于桑格测序的LDT,用于FPF相关的遗传变异.
- 在20个FPF相关基因中对128个已知的遗传变异进行命名标准化.
- 为了促进肺纤维化遗传检测的临床翻译.
主要方法:
- 在20个与成年期肺纤维化相关的基因中对128个遗传变异进行表化和标准化.
- 使用桑格测序和协调PCR条件在单个96井板上开发LDT.
- 在62例零星异常性肺纤维化病例中评估LDT,并与基于人口的队列进行比较.
主要成果:
- LDT成功评估了100%的目标变异.
- 正如预期的那样,在零星的异常性肺纤维化病例中,已知致病突变的产量较低.
- 鉴定了四种不确定的变异和MUC5B促进体变异rs35705950 (41.1%对10.6%MAF) 的强烈丰富.
结论:
- 开发的LDT为肺纤维化临床遗传测试提供了实用的解决方案.
- 该测试可以识别已知的FPF变体和潜在的新型致病变体.
- 该MUC5B变异rs35705950可能会显著促进群体可归因的异常性肺纤维化风险.
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