Cells, Volume 14, Issue 12
2025 June-2 - 87 articles
Cover Story: Sensory hair cells in the mammalian cochlea are essential for hearing and require precise developmental patterning. In this study, we demonstrate that Wnt4 and the Wnt antagonist sFRP2 jointly regulate inner hair cell boundary formation and differentiation through a non-canonical Wnt/Calcium/PKC pathway. Genetic and pharmacological analyses reveal that Wnt4 pathway activation inhibits proper hair cell formation, while its inhibition induces the formation of ectopic inner hair cells. We further identify Atoh1 as a downstream effector, as a mutation in one of its putative PKC target sites diminishes hair cell induction. This work reveals a novel Wnt4/Calcium/PKC pathway that controls cochlear boundary formation and hair cell specification. View this paper - Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
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