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人类动脉血管系统的细胞和转录组图谱

Quanyi Zhao, Albert Pedroza, Disha Sharma

bioRxiv : the preprint server for biology

|September 24, 2024

概括

人类动脉在各个细分段中表现出独特的细胞和遗传差异,影响血管疾病的易感性. 这项研究揭示了纤维细胞异质性是疾病风险的关键因素.

科学领域:

心血管生物学心血管生物学
基因组学就是基因组学.
细胞异质性细胞异质性

背景情况:

血管床对病理的敏感性各不相同,但潜在的机制尚不清楚.
了解动脉细胞多样性对于解释差异性疾病风险至关重要.

研究的目的:

创建人类动脉细胞 (转录,细胞,空间) 的综合图谱.
为了研究动脉中的细胞类型和细分特异性.
确定动脉身份和疾病关联的遗传决定因素.

主要方法:

来自不同细分的人类动脉细胞的转录,细胞和空间概况.
生物信息分析以确定细胞类型特定的基因表达模式.
基因表达和血管疾病风险位置之间的相关性分析.

主要成果:

在动脉细胞中发现了显著的细胞类型特异性和细分异质性.
纤维细胞和光滑肌肉细胞含有动脉身份的关键决定因素,为血管疾病基因丰富.
进发性纤维细胞异质性与血管疾病风险基因相关.
动脉细胞按胚胎起源,而不是解剖位置聚集,发育调节者影响基因表达.
非编码转录组,特别是 lncRNAs,表现出广泛的细胞类型和细分特异变异,并为血管疾病提供遗传信号.

结论:

动脉细胞异质性,特别是在纤维细胞中,在血管疾病风险中起着重要作用.
发育起源深深地影响动脉细胞身份和基因调节.
编码和非编码的转录组都通过细胞类型特定的模式促进了血管疾病的易感性.

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