Cited by 202Genetics and Neurodevelopmental DisordersRNA and protein synthesis mechanismsNeuroscience and Neuropharmacology Research

Pharmacogenetic inhibition of eIF4E-dependent Mmp9 mRNA translation reverses fragile X syndrome-like phenotypes

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Gkogkas, Christos G., Khoutorsky, Arkady, Cao, Ruifeng, Jafarnejad, Seyed Mehdi, Prager-Khoutorsky, Masha, Giannakas, Nikolaos, Kaminari, Archontia, Fragkouli, Apostolia +7 more·2014·Cell Reports

Abstract

Fragile X syndrome (FXS) is the leading genetic cause of autism. Mutations in Fmr1 (fragile X mental retardation 1 gene) engender exaggerated translation resulting in dendritic spine dysmorphogenesis, synaptic plasticity alterations, and behavioral deficits in mice, which are reminiscent of FXS phenotypes. Using postmortem brains from FXS patients and Fmr1 knockout mice (Fmr1(-/y)), we show that phosphorylation of the mRNA 5' cap binding protein, eukaryotic initiation factor 4E (eIF4E), is elevated concomitant with increased expression of matrix metalloproteinase 9 (MMP-9) protein. Genetic or pharmacological reduction of eIF4E phosphorylation rescued core behavioral deficits, synaptic plasticity alterations, and dendritic spine morphology defects via reducing exaggerated translation of Mmp9 mRNA in Fmr1(-/y) mice, whereas MMP-9 overexpression produced several FXS-like phenotypes. These results uncover a mechanism of regulation of synaptic function by translational control of Mmp-9 in FXS, which opens the possibility of new treatment avenues for the diverse neurological and psychiatric aspects of FXS.

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Authors
Gkogkas, C. G., Khoutorsky, A., Cao, R., Jafarnejad, S. M., Prager-Khoutorsky, M., Giannakas, N., Kaminari, A., Fragkouli, A., Nader, K., Price, T. J., Konicek, B. W., Graff, J. R., Tzinia, A. K., Lacaille, J.-C., & Sonenberg, N.
Affiliations
  • McGill University (CA)
  • National Centre of Scientific Research "Demokritos" (GR)
  • The University of Texas at Dallas (US)
  • Eli Lilly (United States) (US)
  • Université de Montréal (CA)
Corresponding author
  • Gkogkas, Christos G.
  • Sonenberg, Nahum
Venue
Cell Reports
Publisher
Elsevier BV
Published
2014-12
Volume
9
Issue
5
Pages
1742-1755
ISSN
2211-1247 (ISSN-L)
OpenAlex
W2151299944
Cited by
201
References
50
Citations by year
2026: 5 · 2025: 10 · 2024: 14 · 2023: 15 · 2022: 15 · 2021: 18 · 2020: 21 · 2019: 16 · 2018: 28 · 2017: 22 · 2016: 19 · 2015: 17
FWCI
12.70
Type
journal article
Language
en
Open access
Locations
  • Cell Reports (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion, cc-by-nc-nd)
  • PubMed Central (acceptedVersion, cc-by-nc-nd)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • eScholarship@McGill (McGill) (submittedVersion)
  • Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, cc-by-nc-nd)
  • Research Portal (Queen's University Belfast) (submittedVersion, cc-by-nc-nd)
Funders
  • Eli Lilly and Company
  • Fondation Brain Canada
  • Wellcome Trust
  • Azrieli Foundation
  • Canadian Institutes of Health Research (125985_1, MOP-114994), 125985)
  • Fonds de Recherche du Québec - Santé
  • National Institute of Mental Health (R24MH068855)
  • National Institute of Neurological Disorders and Stroke (R01NS065926)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
fragile X syndrome, eIF4E phosphorylation, MMP-9, mRNA translation, translational regulation, FMR1 gene, dendritic spine morphology, synaptic plasticity, autism spectrum disorder, Fmr1 knockout mice, behavioral deficits
MeSH terms
Copper-Transporting ATPases, Adenosine Triphosphatases, Animals, Autistic Disorder, Benzofurans, Brain, Cells, Cultured, Enzyme Induction, Female, Fragile X Syndrome, Humans, Male, Mice, Inbred C57BL, Mice, Transgenic, Phenotype, Phosphorylation, Protein Processing, Post-Translational, Protein Biosynthesis, Receptors, Metabotropic Glutamate, Matrix Metalloproteinase 9, Cation Transport Proteins, Eukaryotic Initiation Factor-4E, Dendritic Spines

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