Journal
NATURE COMMUNICATIONS
Volume 6, Issue -, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/ncomms9549
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Funding
- Triologic Society Career Development grant
- NIDCD/NIH [R01DC013817, R01DC03544, R01DC014658, K01DK092402, R01DK102001]
- DOD CDMRP [MR130240]
- Swiss National Science Foundation [310030B-144085, 3100-06489]
- Fondation pour la Recherche Medicale FRM [DEQ20131029168]
- Nebraska Tobacco Settlement Biomedical Research Development Funds
- ANR Ciliopath-X
- CDMRP [672248, MR130240] Funding Source: Federal RePORTER
- Swiss National Science Foundation (SNF) [310030B_144085] Funding Source: Swiss National Science Foundation (SNF)
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Sensorineural hearing loss is a common and currently irreversible disorder, because mammalian hair cells (HCs) do not regenerate and current stem cell and gene delivery protocols result only in immature HC-like cells. Importantly, although the transcriptional regulators of embryonic HC development have been described, little is known about the postnatal regulators of maturating HCs. Here we apply a cell type-specific functional genomic analysis to the transcriptomes of auditory and vestibular sensory epithelia from early postnatal mice. We identify RFX transcription factors as essential and evolutionarily conserved regulators of the HC-specific transcriptomes, and detect Rfx1,2,3,5 and 7 in the developing HCs. To understand the role of RFX in hearing, we generate Rfx1/3 conditional knockout mice. We show that these mice are deaf secondary to rapid loss of initially well-formed outer HCs. These data identify an essential role for RFX in hearing and survival of the terminally differentiating outer HCs.
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