多基因风险和罕见变体在异形性肺纤维化内型
medRxiv : the preprint server for health sciences
|June 12, 2025
概括
这项研究表明,常见和罕见的遗传变异都会导致异常性肺纤维化 (IPF) 风险. 端粒长度多基因风险评分 (TL-PRS) 提高了IPF预测,特别是在特定的遗传内型.
科学领域:
- 遗传学 是一个遗传学.
- 肺部医学 肺部医学
- 生物信息学是一种生物信息学.
背景情况:
- 异形性肺纤维化 (IPF) 与罕见和常见的遗传变异有关.
- 缩短的端粒长度 (TL) 可能是IPF的因果因素.
- 在IPF风险中罕见和常见的遗传变异之间的相互作用尚未得到充分理解.
研究的目的:
- 研究罕见和常见遗传变异对IPF风险的综合影响.
- 评估端粒长度多基因风险评分 (TL-PRS) 在预测IPF中的有用性.
- 通过内型分层来探索IPF中的遗传异质性.
主要方法:
- 利用了来自三个大型队列 (哥伦比亚,TOPMed,UKBB) 的全基因组测序 (WGS) 数据.
- 确定了罕见的有害变异,并计算了IPF (IPF-PRS) 和TL (TL-PRS) 的多基因风险得分.
- 评估了遗传风险得分,IPF风险和遗传内型之间的关联.
主要成果:
- 罕见变异,MUC5B SNP和多基因评分与IPF风险的复制协会跨队伍.
- TL-PRS独立地改善了IPF预测,与IPF-PRS-no MUC5B可比,并提高了AUC.
- TL-PRS解释了额外的IPF责任 (8-13%) 并在特定的内型 (罕见变异载体,短TL) 中至关重要.
结论:
- 常见和罕见的遗传变异相互作用,赋予特定环境的IPF风险.
- TL-PRS代表了一种重要的,以前未被认可的遗传风险因素,特别是在某些IPF内型中.
- 了解遗传异质性,包括多基因修饰剂,是IPF精准医学的关键.
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