期刊
PIGMENT CELL & MELANOMA RESEARCH
卷 34, 期 3, 页码 585-597出版社
WILEY
DOI: 10.1111/pcmr.12961
关键词
cochlea; development; EdnrB; intermediate cells; melanocytes; stria vascularis
资金
- Hearing Health Foundation
- National Institute on Deafness and Other Communication Disorders [1 R01 DC015785--01]
The study found that intermediate cells in the inner ear maintain the expression of genes necessary for melanocyte development, while skin melanocytes rapidly downregulate the expression of these genes, suggesting that the inner ear may have acquired new functions during evolution.
In the inner ear, the neural crest gives rise to the glia of the VIII ganglion and two types of melanocytic cells: The pigmented cells of the vestibular system and intermediate cells of the stria vascularis. We analyzed the transcriptome of neonatal intermediate cells in an effort to better understand the development of the stria vascularis. We found that the expression of endothelin receptor B, which is essential for melanocyte development, persists in intermediate cells long after birth. In contrast, skin melanocytes rapidly downregulate the expression of EdnrB. Our findings suggest that endothelins might have co-opted new functions in the inner ear during evolution of the auditory organ.
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