Scholarlink

<p>Alcohol use disorder (AUD) is known to have a significant genetic component, yet there remains a gap between its heritability and findings from genome-wide association studies. One potential explanation for this could be genetic interactions, or epistasis, which remain largely unexplored in the context of AUD. We investigated the role of epistasis in AUD susceptibility among 742 American Indians. By analyzing 467 K variants in 3,736 genes and regulatory elements linked to AUD, we identified 97 interacting gene pairs significantly associated with AUD severity in an American Indian cohort. Five of these gene pairs: <i>CNTNAP2-GRM8</i>, <i>CSMD1-DLGAP1, CSMD1-ERBB4</i>, <i>CSMD1-MAML2</i>, and <i>KCNQ5-ROBO2</i> - were replicated in All of Us research American Indian cohort (N = 5,037). These genes were enriched for immune system, cell adhesion, neuronal, and disease pathways. Their expressions were particularly enriched in midbrain GABAergic neurons. This large-scale epistasis study of AUD suggests that epistasis may contribute to the development of AUD.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Extensive genetic interactions (epistasis) linked to alcohol use disorder in a high-risk population

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年4月6日

查看全文
  • Stanislav Listopad,
  • Qian Peng

摘要

Alcohol use disorder (AUD) is known to have a significant genetic component, yet there remains a gap between its heritability and findings from genome-wide association studies. One potential explanation for this could be genetic interactions, or epistasis, which remain largely unexplored in the context of AUD. We investigated the role of epistasis in AUD susceptibility among 742 American Indians. By analyzing 467 K variants in 3,736 genes and regulatory elements linked to AUD, we identified 97 interacting gene pairs significantly associated with AUD severity in an American Indian cohort. Five of these gene pairs: CNTNAP2-GRM8, CSMD1-DLGAP1, CSMD1-ERBB4, CSMD1-MAML2, and KCNQ5-ROBO2 - were replicated in All of Us research American Indian cohort (N = 5,037). These genes were enriched for immune system, cell adhesion, neuronal, and disease pathways. Their expressions were particularly enriched in midbrain GABAergic neurons. This large-scale epistasis study of AUD suggests that epistasis may contribute to the development of AUD.