Cited by 82Genetics and Neurodevelopmental DisordersNeurogenesis and neuroplasticity mechanismsFetal and Pediatric Neurological Disorders

Aberrant differentiation of glutamatergic cells in neocortex of mouse model for fragile X syndrome.

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Tervonen, Topi A., Louhivuori, Verna, Sun, Xiaohong, Hokkanen, Marie-Estelle, Kratochwil, Claudius F., Zebryk, Pawel, Castrén, Eero, Castrén, Maija L.·2009·Neurobiology of Disease

Abstract

The lack of fragile X mental retardation protein (FMRP) causes fragile X syndrome, a common form of inherited mental retardation. Our previous studies revealed alterations in the differentiation of FMRP-deficient neural progenitors. Here, we show abnormalities in neurogenesis in the mouse and human embryonic FMRP-deficient brain as well as after in utero transfection of I304N mutated FMRP, which acts in a dominant negative manner in the wild-type mouse brain. Progenitors accumulated abnormally in the subventricular zone of the embryonic Fmr1-knockout (Fmr1-KO) mouse neocortex. An increased density of cells expressing sequentially an intermediate progenitor marker, T-box transcription factor (Tbr2), and a postmitotic neuron marker, T-brain 1 (Tbr1), indicated that the differentiation to glutamatergic cell lineages was particularly disturbed. These abnormalities were associated with an increased density of pyramidal cells of the layer V in the early postnatal neocortex suggesting a role for FMRP in the regulation of the differentiation of neocortical glutamatergic neurons.

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Registry

Crossref · 10.1016/j.nbd.2008.10.010

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  • Loss of FMRP-mediated translational control results in altered cell fate specification during early neural development.

    “Loss of FMRP-mediated translational control results in altered cell fate specification during early neural development (Tervonen et al., 2009; Saffary and Xie, 2011; Utami et al., 2020).”

    From Astrocytes in fragile X syndrome (2024) · cites this paper as Tervonen et al., 2009

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Authors
Tervonen, T. A., Louhivuori, V., Sun, X., Hokkanen, M.-E., Kratochwil, C. F., Zebryk, P., Castrén, E., & Castrén, M. L.
Affiliations
University of Helsinki (FI)
Corresponding author
Castrén, Maija L.
Venue
Neurobiology of Disease
Publisher
Elsevier BV
Published
2009-02
Volume
33
Issue
2
Pages
250-259
ISSN
0969-9961 (ISSN-L)
OpenAlex
W2047450823
Cited by
82
References
55
Citations by year
2024: 2 · 2022: 3 · 2021: 9 · 2020: 4 · 2019: 6 · 2018: 5 · 2017: 4 · 2016: 6 · 2015: 4 · 2014: 8 · 2013: 9 · 2012: 2
FWCI
3.81
Type
journal article
Language
en
Open access
Locations
  • Neurobiology of Disease (publishedVersion)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Helsingin Yliopisto
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Fetal and Pediatric Neurological Disorders
Keywords
fragile X syndrome, FMRP, Fmr1 knockout mice, glutamatergic neurons, neocortex, neurogenesis, intermediate progenitor cells, Tbr2, Tbr1, subventricular zone, pyramidal neurons, layer V, embryonic brain
MeSH terms
Fatty Acid-Binding Protein 7, Animals, Animals, Newborn, Cell Differentiation, Disease Models, Animal, DNA-Binding Proteins, Fragile X Syndrome, Mutation, Nerve Tissue Proteins, Neurons, Stem Cells, Pyramidal Cells, Mice, Knockout, Glutamic Acid, Cell Lineage, Neocortex, T-Box Domain Proteins, Excitatory Amino Acid Transporter 1, Fatty Acid-Binding Proteins, Mice, Fragile X Messenger Ribonucleoprotein 1, Fragile X Mental Retardation Protein, Neurogenesis, Mesenchymal Stem Cells

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