Quantitative High-Resolution Cellular Map of the Organ of Corti.

Quantitative High-Resolution Cellular Map of the Organ of Corti.
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DOI:
10.1016/j.celrep.2015.04.062
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发表时间:
2015-06-09
期刊:
影响因子:
8.8
通讯作者:
Heller S
Heller S
中科院分区:
生物学1区
文献类型:
--
作者:
Waldhaus J;Durruthy-Durruthy R;Heller S

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Corti的器官拥有高度特化的感觉毛细胞和周围的支持细胞,这些细胞对听觉至关重要。在这里,我们报告了一个单细胞基因表达数据分析和可视化策略,允许沿着其主要解剖轴构建Corti新生儿器官的定量空间图。这张图显示了沿耳蜗顶点到底轴排列的所有器官的192个基因的表达水平。沿纵向梯度的细胞类型特异性基因表达模式的统计询问揭示了顶端支持细胞的特征,表明增殖毛细胞再生的倾向。这包括Notch效应物的表达减少,典型Wnt信号的接受性,以及早期细胞周期基因的显著表达。耳蜗毛细胞表现出细胞分化和张力轴建立相关基因的表达梯度。
The organ of Corti harbors highly specialized sensory hair cells and surrounding supporting cells that are essential for the sense of hearing. Here, we report a single cell gene expression data analysis and visualization strategy that allows for the construction of a quantitative spatial map of the neonatal organ of Corti along its major anatomical axes. The map displays gene expression levels of 192 genes for all organ of Corti cell types ordered along the apex-to-base axis of the cochlea. Statistical interrogation of cell type-specific gene expression patterns along the longitudinal gradient revealed features of apical supporting cells indicative of a propensity for proliferative hair cell regeneration. This includes reduced expression of Notch effectors, receptivity for canonical Wnt signaling, and prominent expression of early cell cycle genes. Cochlear hair cells displayed expression gradients of genes indicative of cellular differentiation and the establishment of the tonotopic axis.
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发表时间: 2009-06-01
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