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通过交叉祖先eQTL和单核多原子分析来确定心房动变异对基因的优先级

Francis J A Leblanc^1,2, Xuexin Jin^3,4, Kai Kang⁵

¹Montreal Heart Institute, Montreal, QC, Canada.

|September 12, 2024

概括

研究人员使用多omics方法确定了14个与心房 (AF) 相关的基因. 抑制一个关键基因,LINC01629,破坏了对心脏发育和功能至关重要的途径.

科学领域:

遗传学是一个遗传学.
心脏病学心脏病学
分子生物学分子生物学

背景情况:

心房动 (AF) 是全球流行的一种心律失常.
鉴定AF的因果基因对于开发向疗法至关重要.
现有的遗传研究需要进一步的功能验证.

研究的目的:

确定与心房相关的因果基因和变异.
在心脏发育和功能中对AF相关基因进行功能性表征.
整合多omics数据,以全面了解AF遗传学.

主要方法:

应用了一种精细映射策略,整合全基因组关联研究 (GWAS) 数据.
从各种祖先的左心房附属体 (LAA) 中利用表达量的特征位点 (eQTL).
在LAAs上进行了单核多原子测定 (sn-multiome),包括RNA测序和ATAC测序.
使用CRISPR抑制来抑制心肌细胞中的LINC01629.

主要成果:

通过共同定位和精细映射分析,在9个AF位点涉及14个基因.
确定了候选因果AF变体,包括GNB4的rs7612445和MAPT的rs242557.
证明抑制LINC01629对心房组织发育和心脏导电至关重要的通路产生调节障碍.

结论:

这项研究提供了AF相关基因和变异的精细列表.
功能性抑制LINC01629突出其在心脏发育和导电中的作用.
综合的多学科方法为剖析复杂的遗传疾病 (如AF) 提供了一个强大的策略.

关键词:

基因学的技术在遗传学.文字转录学 (Transcriptomics) 是一个学科.协会分析协会分析分析表达方式研究研究表达方式研究基因组分析基因组分析定量遗传学定量遗传学

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