ArticleDevelopmental biology2022
Pax2a, Sp5a and Sp5l act downstream of Fgf and Wnt to coordinate sensory-neural patterning in the inner ear.
Article in Developmental biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 10 citations in OpenAlex.
- Neurotrophic Modulation Restores Motor and Developmental Defects in Zebrafish Models of ints11 Deficiency.Journal of neurochemistry · 2026Article
- Zebrafish pou3f3b controls saccular/auditory development and marks non-neuronal cells that delaminate from the otic vesicle to promote neuroblast maturation.Developmental biology · 2026Article
- Spatial patterns of Wnt/β-catenin signaling in the adult and agingAging brain · 2026Article
- Introgression dynamics of sex-linked chromosomal inversions shape the Malawi cichlid radiation.Science (New York, N.Y.) · 2025Article
- Foxm1 promotes differentiation of neural progenitors in the zebrafish inner ear.Developmental biology · 2025Article
- Pax2a, Pax5 and Cdh1-β-catenin, but not Wnt, protect sensory hair cells from destabilizing effects of fgf signaling on cell adhesion.Developmental biology · 2025Article
- Review
- Fgf, Hh, and pax2a differentially regulate expression of pax5 and pou3f3b in vestibular and auditory maculae in the zebrafish otic vesicle.Developmental dynamics : an official publication of the American Association of Anatomists · 2023Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
In zebrafish, sensory epithelia and neuroblasts of the inner ear form simultaneously in abutting medial and lateral domains, respectively, in the floor of the otic vesicle. Previous studies support regulatory roles for Fgf and Wnt, but how signaling is coordinated is poorly understood. We investigated this problem using pharmacological and transgenic methods to alter Fgf or Wnt signaling from early placodal stages to evaluate later changes in growth and patterning. Blocking Fgf at any stage reduces proliferation of otic tissue and terminates both sensory and neural specification. Wnt promotes proliferation in the otic vesicle but is not required for sensory or neural development. However, sustained overactivation of Wnt laterally expands sensory epithelia and blocks neurogenesis. pax2a, sp5a and sp5l are coregulated by Fgf and Wnt and show overlapping expression in the otic placode and vesicle. Gain- and loss-of-function studies show that these genes are together required for Wnt's suppression of neurogenesis, as well as some aspects of sensory development. Thus, pax2a, sp5a and sp5l are critical for mediating Fgf and Wnt signaling to promote spatially localized sensory and neural development.
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Registered trials
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