Cited by 27Neurogenesis and neuroplasticity mechanismsAxon Guidance and Neuronal SignalingCytokine Signaling Pathways and Interactions

STAT5A/B activity is required in the developing forebrain and spinal cord

Markham, Kathryn, Schuurmans, Carol, Weiss, Samuel·2007·Molecular and Cellular Neuroscience

Abstract

Formation of the CNS requires the coordination and integration of processes such as cell proliferation, neuronal differentiation, neuronal migration, axon tract formation and synaptogenesis, all of which must occur at precise times and places during development. Although growth factors are known to play a role in regulating many of these processes, very little is known of the signaling events immediately downstream of ligand-receptor interactions in the developing CNS. Here we present evidence that STAT5, an important mediator of cytokine signaling, is required for some aspects of CNS development. We show that phosphorylated and hence activated forms of STAT5 (pSTAT5) are expressed in a temporally restricted manner in a subset of early-born telencephalic neurons and axons. Accordingly, Stat5 mutants have reduced numbers of interneurons in the cortical marginal zone, suggestive of migration defects. Moreover, corticofugal axons develop aberrantly in Stat5 mutants, indicative of a role for pSTAT5 in axon guidance. Notably, pSTAT5 is also expressed in commissural axons in the embryonic spinal cord, where it is also required for their guidance. Taken together, we provide the first evidence that STAT5 is a key effector molecule in the developing mammalian CNS.

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Crossref · 10.1016/j.mcn.2007.03.001

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Authors
Markham, K., Schuurmans, C., & Weiss, S.
Affiliations
University of Calgary (CA)
Corresponding author
Markham, Kathryn
Venue
Molecular and Cellular Neuroscience
Publisher
Elsevier BV
Published
2007-06
Volume
35
Issue
2
Pages
272-282
ISSN
1044-7431 (ISSN-L)
OpenAlex
W1985991090
Cited by
27
References
46
Citations by year
2025: 1 · 2024: 3 · 2021: 1 · 2020: 1 · 2018: 1 · 2017: 2 · 2016: 3 · 2015: 2 · 2014: 1 · 2013: 2 · 2012: 3
FWCI
0.41
Type
journal article
Language
en
Open access
closed
Locations
  • Molecular and Cellular Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Funders
Canadian Institutes of Health Research
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Axon Guidance and Neuronal Signaling
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
Keywords
STAT5, Stat5a/b, forebrain development, spinal cord development, cortical interneurons, neuronal migration, corticofugal axons, axon guidance, commissural axons, telencephalic neurons, cytokine signaling
MeSH terms
Doublecortin Domain Proteins, Age Factors, Analysis of Variance, Animals, Cell Count, Cells, Cultured, Embryo, Mammalian, Female, Mice, Transgenic, Microtubule-Associated Proteins, Neurons, Neuropeptides, Pregnancy, Spinal Cord, Tubulin, Cell Adhesion Molecules, Neuronal, Prosencephalon, Neurofilament Proteins, In Situ Hybridization, Gene Expression Regulation, Developmental, Mutant Proteins, STAT5 Transcription Factor, Mice, Contactin 2

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