Epithelial-Mesenchymal Wnt Crosstalk Directs Planar Cell Polarity in the Developing Cochlea
This study reveals that Wnt proteins from both the cochlear epithelium and surrounding periotic mesenchyme act redundantly as global instructive cues to direct cochlear outgrowth and planar cell polarity, ensuring a fail-safe developmental program through epithelial-mesenchymal crosstalk.