PreprintCited by 150Neurogenesis and neuroplasticity mechanismsDevelopmental Biology and Gene RegulationCongenital gastrointestinal and neural anomalies

The bHLH factor Olig3 coordinates the specification of dorsal neurons in the spinal cord

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Müller, Thomas, Anlag, Katrin, Wildner, Hendrik, Britsch, Stefan, Treier, Mathias, Birchmeier, Carmen·2005·Genes & Development

Abstract

Neurons of the dorsal horn integrate and relay sensory information and arise during development in the dorsal spinal cord, the alar plate. Class A and B neurons emerge in the dorsal and ventral alar plate, differ in their dependence on roof plate signals for specification, and settle in the deep and superficial dorsal horn, respectively. We show here that the basic helix-loop-helix (bHLH) gene Olig3 is expressed in progenitor cells that generate class A (dI1-dI3) neurons and that Olig3 is an important factor in the development of these neuronal cell types. In Olig3 mutant mice, the development of class A neurons is impaired; dI1 neurons are generated in reduced numbers, whereas dI2 and dI3 neurons are misspecified and assume the identity of class B neurons. Conversely, Olig3 represses the emergence of class B neurons in the chick spinal cord. We conclude that Olig3 expression distinguishes the two major classes of progenitors in the dorsal spinal cord and determines the distinct specification program of class A neurons.

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Authors
Müller, T., Anlag, K., Wildner, H., Britsch, S., Treier, M., & Birchmeier, C.
Affiliations
Max Delbrück Center (DE)
Venue
Genes & Development
Published
2005-03-15
Volume
19
Issue
6
Pages
733-743
ISSN
  • 0890-9369 (ISSN-L)
  • 1549-5477
OpenAlex
W2038998122
Cited by
150
References
48
Citations by year
2026: 3 · 2025: 6 · 2024: 8 · 2023: 1 · 2022: 4 · 2021: 9 · 2020: 6 · 2019: 7 · 2018: 4 · 2017: 6 · 2016: 6 · 2015: 7 · 2014: 9 · 2013: 9 · 2012: 9
Type
posted content
Language
en
Open access
Locations
  • Genes & Development (publishedVersion)
  • PubMed Central (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed (publishedVersion)
  • MDC Repository (Max-Delbrueck-Center for Molecular Medicine) (acceptedVersion)
Funders
  • Deutsche Forschungsgemeinschaft
  • Bundesministerium für Bildung und Forschung
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Health Sciences › Medicine › Surgery › Congenital gastrointestinal and neural anomalies
Keywords
bHLH transcription factors, dorsal horn neurons, spinal cord development, alar plate, neuronal specification, dorsal interneurons, progenitor cells, chick embryo
MeSH terms
Animals, Bromodeoxyuridine, Cell Differentiation, Chick Embryo, Fluorescent Antibody Technique, Genetic Vectors, Mutation, Spinal Cord, Stem Cells, Transcription Factors, Blotting, Southern, In Situ Hybridization, Gene Transfer Techniques, Electroporation, Reverse Transcriptase Polymerase Chain Reaction, Posterior Horn Cells, Mice, Basic Helix-Loop-Helix Proteins

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