罕见变异对冠状动脉疾病遗传性的贡献
Ghislain Rocheleau1,2,3, Shoa L Clarke4,5, Gaëlle Auguste6
1The Charles Bronfman Institute for Personalized Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Nature communications
|October 9, 2024
概括
超罕见的遗传变异显著导致冠状动脉疾病 (CAD) 的遗传性. 这些发现凸显了研究罕见变异和功能元素在理解CAD遗传风险方面的重要性.
科学领域:
- 遗传学 是一个遗传学.
- 心血管疾病研究研究
背景情况:
- 全基因组序列 (WGS) 对于识别可能解释冠状动脉疾病 (CAD) 遗传性缺失的罕见变异至关重要.
- 了解CAD的遗传结构对于开发有效的预防和治疗策略至关重要.
研究的目的:
- 使用全基因组测序数据量化罕见变异对CAD遗传性的贡献.
- 研究CAD在各种功能性基因组注释中的遗传性的丰富性.
主要方法:
- 应用GREML-LDMS-I方法对来自4949个CAD病例和17494个对照组的全基因组序列.
- 使用了功能注释,包括约束,预测的蛋白质改变影响和细胞特异的 cis-regulatory 元素.
主要成果:
- 估计CAD遗传率为34.3%,低链接不平衡 (LD) 的超稀有变异 (≤0.1%小等位基因频率) 贡献约50%.
- 在大多数功能注释中观察到显著的遗传性丰富,特别是在细胞类型特定的监管元素中.
结论:
- 具有低LD的超罕见变体在冠状动脉疾病的遗传性中起着主导作用.
- 细胞类型特定的调节机制和其他功能过程是CAD遗传风险的关键驱动因素.
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