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Inner ear neurogenesis depends upon the function of the proneural basic helix-loop-helix (bHLH) transcription factors NEUROG1 and NEUROD1. However, the transcriptional regulation of these factors is unknown. Here, using loss- and gain-of-function models, we show that EYA1 and SIX1 are crucial otic neuronal determination factors upstream of NEUROG1 and(More)
Inner-ear hair cell differentiation requires Atoh1 function, while Eya1, Six1, and Sox2 are coexpressed in sensory progenitors and mutations in these genes cause sensorineural hearing loss. However, how these genes are linked functionally and the transcriptional networks controlling hair cell induction remain unclear. Here, we show (1) that Eya1/Six1 are(More)
Proper formation of ureteral smooth muscle cells (SMCs) during embryogenesis is essential for ureter peristalsis that propels urine from the kidney to the bladder in mammals. Currently the molecular factors that regulate differentiation of ureteral mesenchymal cells into SMCs are incompletely understood. A recent study has reported that Smad4 deficiency(More)
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