Wnt signaling during cochlear development |
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Affiliation: | 1. Centre for Integrative Physiology, Edinburgh Medical School: Biomedical Sciences, University of Edinburgh, Edinburgh EH8 9XD, UK;2. MRC Centre for Regenerative Medicine, Institute for Stem Cell Research, School of Biological Sciences, University of Edinburgh, Edinburgh, UK;1. Interdisciplinary Graduate Program in Molecular & Cellular Biology, University of Iowa Graduate College, University of Iowa, Iowa City, IA 52242, USA;2. Molecular Otolaryngology and Renal Research Laboratories, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA;3. Department of Otorhinolaryngology, Shinshu University School of Medicine, Matsumoto, Japan;4. Department of Otolaryngology, Head and Neck Surgery, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA;5. Department of Biomedical Sciences, Creighton University School of Medicine, Omaha, NE 68178, USA;1. Department of Human Genetics, University of Utah, Salt Lake City, UT 84112, United States;2. Department of Otolaryngology–Head & Neck Surgery and Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, United States;3. Department of Neurobiology & Anatomy, University of Utah, Salt Lake City, UT 84132, United States;1. Department of Otolaryngology-Head and Neck Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA;2. Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA |
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Abstract: | Wnt signaling is a hallmark of all embryonic development with multiple roles at multiple developmental time points. Wnt signaling is also important in the development of several organs, one of which is the inner ear, where it participates in otic specification, the formation of vestibular structures, and the development of the cochlea. In particular, we focus on Wnt signaling in the auditory organ, the cochlea. Attempting to dissect the multiple Wnt signaling pathways in the mammalian cochlea is a challenging task due to limited expression data, particularly at proliferating stages. To offer predictions about Wnt activity, we compare cochlear development with that of other biological systems such as Xenopus retina, brain, cancer cells and osteoblasts. Wnts are likely to regulate development through crosstalk with other signaling pathways, particularly Notch and FGF, leading to changes in the expression of Sox2 and proneural (pro-hair cell) genes. In this review we have consolidated the known signaling pathways in the cochlea with known developmental roles of Wnts from other systems to generate a potential timeline of cochlear development. |
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Keywords: | Wnt PCP Cochlea β-Catenin Hair cell Retina bHLH" },{" #name" :" keyword" ," $" :{" id" :" kw0040" }," $$" :[{" #name" :" text" ," _" :" basic helix-loop-helix FGF" },{" #name" :" keyword" ," $" :{" id" :" kw0050" }," $$" :[{" #name" :" text" ," _" :" fibroblast growth factors PCP" },{" #name" :" keyword" ," $" :{" id" :" kw0060" }," $$" :[{" #name" :" text" ," _" :" planar cell polarity OEP" },{" #name" :" keyword" ," $" :{" id" :" kw0070" }," $$" :[{" #name" :" text" ," _" :" otic-epibranchial placode Fzd" },{" #name" :" keyword" ," $" :{" id" :" kw0080" }," $$" :[{" #name" :" text" ," _" :" Frizzled receptor E" },{" #name" :" keyword" ," $" :{" id" :" kw0090" }," $$" :[{" #name" :" text" ," _" :" embryonic day |
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