A Gene Regulatory Network Balances Neural and Mesoderm Specification during Vertebrate Trunk Development
Citations Over TimeTop 10% of 2017 papers
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.
Related Papers
- → FGF signaling acts on different levels of mesoderm development within Spiralia(2021)22 cited
- → Fish fossil unfolds clues to vertebrate brain evolution(2023)1 cited
- → Non-vertebrate animals have only one gene of the p53 family which is most similar to vertebrate p63(2010)
- Interaction of platelets with invertebrate and lower vertebrate collagens.(1993)
- Advances in vertebrate origin and evolvement (PlatesVIII,IX)(2004)