PUBLICATION
Blimp-1 specifies neural crest and sensory neuron progenitors in the zebrafish embryo
- Authors
- Roy, S., and Ng, T.
- ID
- ZDB-PUB-041006-6
- Date
- 2004
- Source
- Current biology : CB 14(19): 1772-1777 (Journal)
- Registered Authors
- Ng, Teclise, Roy, Sudipto
- Keywords
- none
- MeSH Terms
-
- Signal Transduction/physiology
- In Situ Hybridization
- Zebrafish Proteins
- Transcription Factors/metabolism
- Transcription Factors/physiology*
- Immunohistochemistry
- Repressor Proteins/metabolism
- Repressor Proteins/physiology*
- Bone Morphogenetic Proteins/metabolism
- Neurons, Afferent/physiology*
- Nuclear Proteins
- Neural Crest/physiology*
- DNA-Binding Proteins
- Cell Differentiation/physiology*
- Gene Expression Regulation, Developmental/physiology
- Zebrafish/embryology*
- Animals
- PubMed
- 15458650 Full text @ Curr. Biol.
Citation
Roy, S., and Ng, T. (2004) Blimp-1 specifies neural crest and sensory neuron progenitors in the zebrafish embryo. Current biology : CB. 14(19):1772-1777.
Abstract
Developmental origins of the neural crest (NC), a quintessential and pluripotent vertebrate cell type, has historically been a topic of extensive investigation but continues to remain poorly understood. In the zebrafish embryo, NC and primary sensory neurons are thought to segregate from a common population of progenitor cells in response to lateral inhibition. Here, we show that the zebrafish homolog of the B-lymphocyte-induced maturation protein (Blimp-1) gene, u-boot (ubo), is induced by BMP signaling in cells at the boundary of the neural plate and nonneural ectoderm. Loss of Ubo activity not only inhibits specification of the NC but also impairs development of the primary sensory neurons. Conversely, misexpression of ubo results in the generation of supernumerary primary sensory neurons consistent with this cell type representing the default fate within the progenitor equivalence group. These results establish a link between the activity of the transcriptional regulator Blimp-1 and the inductive effects of BMP signaling in the inception of NC progenitor fate.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping