具有调节潜力的心血管疾病相关SNP揭示了新的非编码疾病基因
Chaonan Zhu1,2, Nina Baumgarten1,3,2, Meiqian Wu1
1Institute for Cardiovascular Regeneration, Goethe University, 60590, Frankfurt Am Main, Germany.
Human genomics
|July 25, 2023
概括
这项研究通过分析遗传变异来确定与心血管疾病 (CVD) 相关的新型非编码RNA (ncRNA). 这种ncRNA IGBP1P1显示出作为改善心脏功能的治疗点的潜力.
科学领域:
- 基因组学就是基因组学.
- 心血管生物学 心血管生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 心血管疾病 (CVD) 是全球主要的死亡原因.
- 全基因组关联研究 (GWAS) 在与心血管疾病相关的非编码DNA中发现了单核酸多态 (SNP).
- 这些SNP可能会通过改变转录因子 (TF) 结合来影响基因表达和心血管特征.
研究的目的:
- 确定与CVD相关的监管SNP,并了解它们对TF绑定的影响.
- 将GWAS识别的SNP与潜在的目标基因联系起来,包括非编码RNA (ncRNA).
- 在心血管疾病模型中研究已识别的ncRNAs的功能作用.
主要方法:
- 利用SNEEP (使用表观遗传学数据进行SNP探索和分析) 管道来分析CVD GWAS数据.
- 采用人类诱导的多能干细胞衍生的心肌细胞 (hiPSC-CMs),单种心脏器官 (MCOs) 和自我组织的心脏器官 (SCOs).
- 在包括缺氧在内的各种条件下评估基因表达,心肌细胞大小和心脏收缩性.
主要成果:
- 从CVD GWAS数据中确定了1905个与数百个基因相关的调节性SNP,包括众多的ncRNA.
- 实验验证了40个与心血管疾病相关的ncRNAs,其中IGBP1P1,RP11-98F14.11,RPL23AP92和CTD-2383I20.1在低氧状态下显示上调.
- 在试验室模型中,IGBP1P1的耗尽挽救了过度缩标记基因表达,减少了缺氧诱导的心肌细胞大小,并改善了心脏收缩能力.
结论:
- 非编码RNA IGBP1P1作为心肌细胞大小和心脏功能的新型调节剂.
- 在心血管疾病中,IGBP1P1为改善心脏功能提供了潜在的治疗标.
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