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在单细胞类型中系统识别振荡基因表达

Alexis Weinreb^1,2, Manasa Basavaraju^1,2, Marc Hammarlund^1,2

¹Department of Genetics, Yale University School of Medicine, New Haven CT USA.

bioRxiv : the preprint server for biology

|September 15, 2025

概括

研究人员发现了细胞类型特定的基因表达模式,驱动了Caenorhabditis elegans发育中的生物周期. 共享的调节器协调这些振荡,包括在glia,影响皮肤的生产.

科学领域:

发展生物学发展生物学
基因组学就是基因组学.
细胞生物学细胞生物学

背景情况:

生物循环,例如Caenorhabditis elegans幼虫发育中的生物循环,依赖于不同细胞类型的协调基因表达.
皮膜的生产对于生长至关重要,它涉及复杂的细胞过程,受基因表达时间的影响.

研究的目的:

在C. elegans幼虫发育过程中识别和描述单个细胞类型内的振荡基因表达.
了解协调这些在不同细胞类型的振荡的调节机制.

主要方法:

使用单细胞RNA测序,以高分辨率捕获基因表达特征.
开发了新的计算和统计方法,用于*de novo*识别振荡基因和细胞类型.

主要成果:

在多种细胞类型中确定了转录振荡,在PCA和UMAP中可视化为循环结构.
振荡基因表达在皮质细胞中普遍存在,包括质细胞,但在神经元和肌肉中不存在.
鉴定了超过5000个振荡基因,细胞类型特定的表达模式表明在皮肤皮的生产中发挥了不同的作用.

结论:

共同的上游调控转录因子可能协调细胞类型特定的振荡基因表达.
这项研究强调了振荡基因表达在发育过程中的重要性,它超出了以前被认可的细胞类型,如质细胞.

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