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An extra-genital cell population contributes to urethra closure during mouse penis development

GSE278744 Mus musculus Expression profiling by high throughput sequencing 4 samples Submitted 2024/12/18 Platform GPL24247
Summary
Penis, the organ that bears reproductive and psychological importance, is susceptible to birth defects such as hypospadias, or incomplete closure of urethra along the penis shaft. We discover that proper urethral closure in mouse embryos requires a unique mesenchymal cell population originated from outside of the penis. These “extra-genital” cells, marked by a lineage marker Nr5a1, migrate from the inguinal region into the embryonic penis, and facilitate urethra closure by interacting with adjacent peri-urethral cells via the epidermal growth factor pathway. Ablation of Nr5a1+ cells leads to severe hypospadias, and alters cell differentiation in the penis. This discovery highlights the indispensable role of Nr5a1+ extra-genital cells in urethra closure, shedding light on the biology of penis formation and potential implications for human hypospadias.
Published in
An extragenital cell population contributes to urethra closure during mouse penis development
Amato CM, Xu X, Yao HH · Science advances 2024 · PMID 39642224 · doi:10.1126/sciadv.adp0673
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Also filed as BioProject PRJNA1168554 and SRA study SRP536514. Searching any of these in the dataset finder brings you back here.

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