Cited by 210Neurogenesis and neuroplasticity mechanismsDevelopmental Biology and Gene RegulationCongenital heart defects research

Sox21 promotes the progression of vertebrate neurogenesis

Sandberg, Magnus, Källström, Magdalena, Muhr, Jonas·2005·Nature Neuroscience

Abstract

The generation of neurons constitutes the foundation of nervous system development, yet the mechanisms underlying neurogenesis are not well established. The HMG-box transcription factors Sox1, Sox2 and Sox3 (Sox1-3) have previously been shown to suppress neurogenesis by maintaining neural cells in an undifferentiated state. Here we report that another HMG-box protein, Sox21, has the opposite activity and promotes neuronal differentiation. Using genetic studies in the chick embryo, we found that Sox21 mediates this function by counteracting the activity of Sox1-3. Accordingly, the balance of Sox21 and Sox1-3 activities determines whether neural cells remain as progenitors or commit to differentiation. Proneural basic helix-loop-helix proteins are essential for the establishment of neuronal fates. We now show that proneural proteins promote neurogenesis by upregulating Sox21 expression. These data establish a key role for Sox21 in the progression of neuronal differentiation and indicate that an important role of proneural proteins is their capacity to upregulate the expression of Sox21.

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Crossref · 10.1038/nn1493

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Authors
Sandberg, M., Källström, M., & Muhr, J.
Affiliations
Karolinska Institutet (SE)
Corresponding author
Muhr, Jonas
Venue
Nature Neuroscience
Published
2005-07-03
Volume
8
Issue
8
Pages
995-1001
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W1985888836
Cited by
210
References
40
Citations by year
2026: 1 · 2025: 7 · 2024: 2 · 2023: 5 · 2022: 4 · 2021: 12 · 2020: 6 · 2019: 7 · 2018: 6 · 2017: 8 · 2016: 10 · 2015: 13 · 2014: 11 · 2013: 15 · 2012: 17
FWCI
3.17
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Congenital heart defects research
Keywords
Sox21, neurogenesis, neuronal differentiation, HMG-box transcription factor, neural progenitor cells, chick embryo, brain development, transcriptional regulation
MeSH terms
Animals, Central Nervous System, Chick Embryo, DNA-Binding Proteins, High Mobility Group Proteins, Transcription Factors, Up-Regulation, HMGB Proteins, SOXB1 Transcription Factors, SOXB2 Transcription Factors

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