ArticleNeuroscience letters2023
Ptf1a expression is necessary for correct targeting of spiral ganglion neurons within the cochlear nuclei.
Article in Neuroscience letters, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 9 citations in OpenAlex.
- Differential vulnerability of cochlear nuclei to Lmx1 deficiency: abnormal patterning and implications for auditory circuitry.Neuroscience letters · 2026Article
- An Lmx1a/b allelic series reveals the role of Lmx1 genes in cochlear nuclei development.Cell and tissue research · 2026Article
- Regulatory Networks Driving the Specification, Differentiation, and Diversification of Neurons in the Mouse Inner Ear.Journal of the Association for Research in Otolaryngology : JARO · 2026Review
- Dicer Deletion in the Ear Can Cut Most Neurons and Their Innervation of Hair Cells to Project to the Ear and the Brainstem.International journal of molecular sciences · 2026Article
- Molecular Cascades That Build and Connect Auditory Neurons from Hair Cells to the Auditory Cortex.Journal of experimental neurology · 2025Article
- Article
- Irx3/5 Null Deletion in Mice Blocks Cochlea-Saccule Segregation and Disrupts the Auditory Tonotopic Map.The Journal of comparative neurology · 2024Article
- Harmony in the Molecular Orchestra of Hearing: Developmental Mechanisms from the Ear to the Brain.Annual review of neuroscience · 2024Review
- Abnormal outer hair cell efferent innervation in Hoxb1-dependent sensorineural hearing loss.PLoS genetics · 2023Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
Two transcription factors, Atoh1 and Ptf1a, are essential for cochlear nuclei development. Atoh1 is needed to develop glutamatergic neurons, while Ptf1a is required to generate glycinergic and GABAergic neurons that migrate into the cochlear nucleus. While central projections of inner ear afferents are normal following loss of Atoh1, we wanted to know whether the loss of Ptf1a affects central projections. We found that in Ptf1a mutants, initially, afferents show a normal projection; however, a transient posterior expansion of projections to the dorsal cochlear nucleus occurs at a later stage. In addition, in older (E18.5) Ptf1a mutant mice, excessive neuronal branches form beyond the normal projection to the anterior and posterior ventral cochlear nuclei. Our results on Ptf1a null mice are comparable to that observed in loss of function Prickel1, Npr2, or Fzd3 mouse mutants. The disorganized tonotopic projections that we report in Ptf1a mutant embryos might be functionally relevant, but testing this hypothesis requires Ptf1a KO mice at postnatal stages that unfortunately cannot be performed due to their early death.
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