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A gene regulatory network balances neural and mesoderm specification during vertebrate trunk development

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Item Type:Article
Title:A gene regulatory network balances neural and mesoderm specification during vertebrate trunk development
Creators Name:Gouti, M. and Delile, J. and Stamataki, D. and Wymeersch, F.J. and Huang, Y. and Kleinjung, J. and Wilson, V. and Briscoe, J.
Abstract:Transcriptional networks, regulated by extracellular signals, control cell fate decisions and determine the size and composition of developing tissues. One example is the network controlling bipotent neuromesodermal progenitors (NMPs) that fuel embryo elongation by generating spinal cord and trunk mesoderm tissue. Here, we use single-cell transcriptomics to identify the molecular signature of NMPs and reverse engineer the mechanism that regulates their differentiation. Together with genetic perturbations, this reveals a transcriptional network that integrates opposing retinoic acid (RA) and Wnt signals to determine the rate at which cells enter and exit the NMP state. RA, produced by newly generated mesodermal cells, provides feedback that initiates NMP generation and induces neural differentiation, thereby coordinating the production of neural and mesodermal tissue. Together, the data define a regulatory network architecture that balances the generation of different cell types from bipotential progenitors in order to facilitate orderly axis elongation.
Keywords:Neuromesodermal Progenitors, NMPs, Gene Regulatory Networks, Single-Cell Transcriptome Analysis, Dynamical Systems Modeling, Vertebrate Development, Retinoic Acid, Animals
Source:Developmental Cell
ISSN:1534-5807
Publisher:Cell Press (U.S.A.)
Volume:41
Number:3
Page Range:243-261
Date:8 May 2017
Official Publication:https://doi.org/10.1016/j.devcel.2017.04.002
PubMed:View item in PubMed

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