ZFIN ID: ZDB-PUB-121220-10
A novel FoxD3 gene trap line reveals neural crest precursor movement and a role for FoxD3 in their specification
Hochgreb-Hägele, T., and Bronner, M.E.
Date: 2013
Source: Developmental Biology   374(1): 1-11 (Journal)
Registered Authors: Bronner-Fraser, Marianne
Keywords: FoxD3, neural crest, zebrafish, live imaging, mutant
MeSH Terms:
  • Animals
  • Animals, Genetically Modified
  • Cell Movement
  • Cells, Cultured
  • Forkhead Transcription Factors/genetics*
  • Forkhead Transcription Factors/physiology
  • Gene Expression Regulation
  • Genetic Techniques
  • Homozygote
  • In Situ Hybridization
  • Microscopy, Confocal/methods
  • Microscopy, Fluorescence/methods
  • Models, Genetic
  • Neural Crest/embryology*
  • Recombinant Fusion Proteins/metabolism
  • Recombination, Genetic
  • Time Factors
  • Transcription Factors/metabolism
  • Zebrafish
  • Zebrafish Proteins/genetics*
  • Zebrafish Proteins/physiology
PubMed: 23228892 Full text @ Dev. Biol.
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ABSTRACT

Neural crest cells migrate extensively and contribute to diverse derivatives, including the craniofacial skeleton, peripheral neurons and glia, and pigment cells. Although several transgenic lines label neural crest subpopulations, few are suited for studying early events in neural crest development. Here, we present a zebrafish gene/protein trap line gt(foxd3-citrine)ct110a that expresses a Citrine fusion protein with FoxD3, a transcription factor expressed in premigratory and migrating neural crest cells. In this novel line, citrine expression exactly parallels endogenous foxd3 expression. High-resolution time-lapse imaging reveals the dynamic phases of precursor and migratory neural crest cell movements from the neural keel stage to times of active cell migration. In addition, Cre-recombination produces a variant line FoxD3-mCherry-pA whose homozygosis generates a FoxD3 mutant. Taking advantage of the endogenously regulated expression of FoxD3-mCherry fusion protein, we directly assess early effects of FoxD3 loss-of-function on specification and morphogenesis of dorsal root ganglia, craniofacial skeleton and melanophores. These novel lines provide new insights and useful new tools for studying specification, migration and differentiation of neural crest cells.

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