通过整合人类蛋白质组和遗传学来识别内动脉瘤中的新型风险基因
Congyan Wu1, Hanchen Liu1, Qiao Zuo1
1Neurovascular Center, Changhai Hospital, Naval Medical University (Second Military Medical University), Shanghai 200433, China.
Brain : a journal of neurology
|July 31, 2024
概括
这项研究确定了三个新型基因,CNNM2,GPRIN3和UFL1,与内动脉瘤 (IA) 风险相关. CNNM2也与IA破裂有关,这表明这种情况的潜在治疗点.
科学领域:
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
- 心血管研究研究心血管研究
背景情况:
- 全基因组关联研究 (GWAS) 已经确定了与内动脉瘤 (IA) 相关的众多位点,但它们的功能机制在很大程度上仍然未知.
- 了解AI的遗传基础对于制定有效的预防和治疗策略至关重要.
研究的目的:
- 整合多omics数据并识别有助于内动脉瘤 (IA) 风险和潜在破裂的新基因.
- 阐明已识别的基因在血管细胞中的功能作用及其与细胞周期的关联.
主要方法:
- 采用了一种整合性管道,结合了全蛋白质组关联研究 (PWAS),全转录组关联研究 (TWAS),孟德尔随机化 (MR) 和贝叶斯共定位分析.
- 采用单细胞RNA测序 (scRNA-seq) 进行细胞丰富分析和基因组丰富分析 (GSEA) 进行功能洞察.
- 基于基因表达和蛋白质丰度变化,在与IA相关的大脑和血液组织中优先确定基因.
主要成果:
- 五个基因显示大脑蛋白质丰富度与IA风险之间存在关联,主要表达在内皮细胞,纤维细胞和血管光滑肌细胞中.
- 三个基因,CNNM2,GPRIN3和UFL1,通过了严格的MR和同局部化分析,并通过GSEA与细胞循环调节有关.
- 此外,CNNM2蛋白的丰富性与IA破裂有关,得到PWAS,MR和同局部化发现的支持.
结论:
- 鉴定出CNNM2,GPRIN3和UFL1为内动脉瘤 (IA) 的潜在风险基因.
- CNNM2与IA破裂的关联凸显了其作为治疗点的关键作用和潜力.
- 这些发现为未来研究IA病原和开发新型治疗策略提供了基础.
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