Cited by 89Neurogenesis and neuroplasticity mechanismsWnt/β-catenin signaling in development and cancerDevelopmental Biology and Gene Regulation

Persistent Wnt/β-catenin signaling determines dorsalization of the postnatal subventricular zone and neural stem cell specification into oligodendrocytes and glutamatergic neurons

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Azim, Kasum, Fischer, Bruno, Hurtado‐Chong, Anahi, Draganova, Kalina, Cantù, Claudio, Zemke, Martina, Sommer, Lukas, Butt, Arthur +1 more·2014·Stem Cells

Abstract

In the postnatal and adult central nervous system (CNS), the subventricular zone (SVZ) of the forebrain is the main source of neural stem cells (NSCs) that generate olfactory neurons and oligodendrocytes (OLs), the myelinating cells of the CNS. Here, we provide evidence of a primary role for canonical Wnt/β-catenin signaling in regulating NSC fate along neuronal and oligodendroglial lineages in the postnatal SVZ. Our findings demonstrate that glutamatergic neuronal precursors (NPs) and oligodendrocyte precursors (OPs) are derived strictly from the dorsal SVZ (dSVZ) microdomain under the control of Wnt/β-catenin, whereas GABAergic NPs are derived mainly from the lateral SVZ (lSVZ) microdomain independent of Wnt/β-catenin. Transcript analysis of microdissected SVZ microdomains revealed that canonical Wnt/β-catenin signaling was more pronounced in the dSVZ microdomain. This was confirmed using the β-catenin-activated Wnt-reporter mouse and by pharmacological stimulation of Wnt/β-catenin by infusion of the specific glycogen synthase kinase 3β inhibitor, AR-A014418, which profoundly increased the generation of cycling cells. In vivo genetic/pharmacological stimulation or inhibition of Wnt/β-catenin, respectively, increased and decreased the differentiation of dSVZ-NSCs into glutamatergic NPs, and had a converse effect on GABAergic NPs. Activation of Wnt/β-catenin dramatically stimulated the generation of OPs, but its inhibition had no effect, indicating other factors act in concert with Wnt/β-catenin to fine tune oligodendrogliogenesis in the postnatal dSVZ. These results demonstrate a role for Wnt/β-catenin signaling within the dorsal microdomain of the postnatal SVZ, in regulating the genesis of glutamatergic neurons and OLs.

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Crossref · 10.1002/stem.1639

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  • Wnt and Smoothened signaling, as well as primary cilium pathways, were up-regulated in male lateral and female septal samples.

    “Wnt and Smoothened signaling, as well as primary cilium pathways (Ahn and Joyner, 2005; Azim et al., 2014; Ihrie et al., 2011), were up-regulated in male lateral and female septal samples.”

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Authors
Azim, K., Fischer, B., Hurtado‐Chong, A., Draganova, K., Cantù, C., Zemke, M., Sommer, L., Butt, A., & Raineteau, O.
Affiliations
  • University of Zurich (CH)
  • Brain Research Institute, University of Zürich/ETHZZürich Switzerland
  • University of Portsmouth (GB)
  • Inserm (FR)
Corresponding author
  • Butt, Arthur
  • Raineteau, Olivier
Venue
Stem Cells
Published
2014-04-17
Volume
32
Issue
5
Pages
1301-1312
ISSN
  • 1066-5099 (ISSN-L)
  • 1549-4918
OpenAlex
W1936856856
Cited by
88
References
35
Citations by year
2026: 3 · 2025: 1 · 2024: 2 · 2023: 3 · 2022: 4 · 2021: 5 · 2020: 6 · 2019: 15 · 2018: 11 · 2017: 10 · 2016: 13 · 2015: 11 · 2014: 4
FWCI
4.40
Type
journal article
Language
en
Open access
Locations
  • Stem Cells (publishedVersion)
  • PubMed (publishedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (acceptedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (submittedVersion)
  • Zurich Open Repository and Archive (University of Zurich)
Funders
Agence Nationale de la Recherche (ANR-11-IDEX-0007)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Wnt/β-catenin signaling in development and cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
Wnt/β-catenin signaling, subventricular zone, oligodendrocyte precursor cells, glutamatergic neurons, GABAergic neurons, neuronal lineage specification, glycogen synthase kinase-3β inhibition, AR-A014418
MeSH terms
Animals, Mice, Transgenic, Neurons, Oligodendroglia, Thiazoles, Urea, Blotting, Western, Signal Transduction, Microscopy, Confocal, Glutamic Acid, Reverse Transcriptase Polymerase Chain Reaction, Lateral Ventricles, Glycogen Synthase Kinase 3, Cell Proliferation, Green Fluorescent Proteins, beta Catenin, Neural Stem Cells, Wnt3 Protein

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