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Genetic network during neural crest induction: from cell specification to cell survival
Ben Steventon1, Carlos Carmona-Fontaine, Roberto Mayor
1Department of Anatomy and Developmental Biology, University College London, Gower Street, London WC1E 6BT, UK.
Seminars in Cell & Developmental Biology
|August 9, 2005
Summary
Extracellular signals like BMP, Wnt, FGF, RA, and Notch trigger neural crest cell formation. This review details the signals and transcription factors involved in cell specification and survival.
Area of Science:
- Developmental Biology
- Cell Biology
- Molecular Biology
Background:
- Neural crest cells are crucial for vertebrate development, forming diverse cell types.
- Their formation requires precise regulation of gene expression by extracellular signals.
- Understanding this process is key to regenerative medicine and developmental disorders.
Purpose of the Study:
- To review the key extracellular signals involved in neural crest cell specification.
- To analyze the transcription factor networks governing this transformation.
- To propose a two-step model for neural crest development: specification and maintenance.
Main Methods:
- Literature review of signaling pathways (BMP, Wnt, FGF, RA, Notch).
- Analysis of transcription factor interactions.
- Synthesis of current knowledge into a developmental framework.
Main Results:
- Identified key extracellular signals initiating neural crest formation.
- Detailed the roles of specific transcription factors in the process.
- Proposed a model dividing neural crest development into specification and maintenance phases.
Conclusions:
- Neural crest cell development is orchestrated by a complex interplay of extracellular signals and transcription factors.
- A two-step model (specification and maintenance) provides a useful framework for understanding this process.
- Further research into these pathways could offer insights into developmental abnormalities and therapeutic strategies.