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- W2040365962 abstract "Pigment cells of the zebrafish, Danio rerio, offer an exceptionally tractable system for studying the genetic and cellular bases of cell fate decisions. In the zebrafish, neural crest cells generate three types of pigment cells during embryogenesis: yellow xanthophores, iridescent iridophores and black melanophores. In this study, we present evidence for a model whereby melanophores and iridophores descend from a common precursor whose fate is regulated by an interplay between the transcription factors Mitf and Foxd3. Loss of mitfa, a key regulator of melanophore development, resulted in supernumerary ectopic iridophores while loss of foxd3, a mitfa repressor, resulted in fewer iridophores. Double mutants showed a restoration of iridophores, suggesting that one of Foxd3's roles is to suppress mitfa to promote iridophore development. Foxd3 co-localized with pnp4a, a novel marker of early iridophore development, and was necessary for its expression. A considerable overlap was found between iridoblast and melanoblast markers but not xanthoblast markers, which resolved as cells began to differentiate. Cell lineage analyses using the photoconvertible marker, EosFP, revealed that both melanophores and iridophores develop from a mitfa+ precursor. Taken together, our data reveal a Foxd3/mitfa transcriptional switch that governs whether a bi-potent pigment precursor will attain either an iridophore or a melanophore fate." @default.
- W2040365962 created "2016-06-24" @default.
- W2040365962 creator A5016120668 @default.
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- W2040365962 date "2010-08-01" @default.
- W2040365962 modified "2023-10-16" @default.
- W2040365962 title "Interplay between Foxd3 and Mitf regulates cell fate plasticity in the zebrafish neural crest" @default.
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- W2040365962 doi "https://doi.org/10.1016/j.ydbio.2010.04.023" @default.
- W2040365962 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2909359" @default.
- W2040365962 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/20460180" @default.
- W2040365962 hasPublicationYear "2010" @default.
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