PreprintCited by 118Genetics and Neurodevelopmental DisordersMetabolomics and Mass Spectrometry StudiesAutism Spectrum Disorder Research

A metabolomic and systems biology perspective on the brain of the fragile X syndrome mouse model

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Davidovic, Laetitia, Navratil, Vincent, Bonaccorso, Carmela M., Catania, Maria Vincenza, Bardoni, Barbara, Dumas, Marc-Emmanuel·2011·Genome Research

Abstract

Fragile X syndrome (FXS) is the first cause of inherited intellectual disability, due to the silencing of the X-linked Fragile X Mental Retardation 1 gene encoding the RNA-binding protein FMRP. While extensive studies have focused on the cellular and molecular basis of FXS, neither human Fragile X patients nor the mouse model of FXS--the Fmr1-null mouse--have been profiled systematically at the metabolic and neurochemical level to provide a complementary perspective on the current, yet scattered, knowledge of FXS. Using proton high-resolution magic angle spinning nuclear magnetic resonance ((1)H HR-MAS NMR)-based metabolic profiling, we have identified a metabolic signature and biomarkers associated with FXS in various brain regions of Fmr1-deficient mice. Our study highlights for the first time that Fmr1 gene inactivation has profound, albeit coordinated consequences in brain metabolism leading to alterations in: (1) neurotransmitter levels, (2) osmoregulation, (3) energy metabolism, and (4) oxidative stress response. To functionally connect Fmr1-deficiency to its metabolic biomarkers, we derived a functional interaction network based on the existing knowledge (literature and databases) and show that the FXS metabolic response is initiated by distinct mRNA targets and proteins interacting with FMRP, and then relayed by numerous regulatory proteins. This novel "integrated metabolome and interactome mapping" (iMIM) approach advantageously unifies novel metabolic findings with previously unrelated knowledge and highlights the contribution of novel cellular pathways to the pathophysiology of FXS. These metabolomic and integrative systems biology strategies will contribute to the development of potential drug targets and novel therapeutic interventions, which will eventually benefit FXS patients.

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Crossref · 10.1101/gr.116764.110

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  • The protein and network of mRNA targets and interacting proteins contribute to several forms of synaptic plasticity involving learning and memory processes, notably induced by activation of type I mGluR.

    “The protein and network of mRNA targets and interacting proteins contribute to several forms of synaptic plasticity involving learning and memory processes, notably induced by activation of type I metabotropic gluta-mate receptor (mGluR; Davidovic et al., 2011).”

    From Oxytocin and vasopressin systems in genetic syndromes and neurodevelopmental disorders (2014) · cites this paper as Davidovic et al., 2011

  • FMRP is essential to the shaping of dendritic spines.

    “FMRP is essential to the shaping of dendritic spines (Davidovic et al., 2011).”

    From Oxytocin and vasopressin systems in genetic syndromes and neurodevelopmental disorders (2014) · cites this paper as Davidovic et al., 2011

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Authors
Davidovic, L., Navratil, V., Bonaccorso, C. M., Catania, M. V., Bardoni, B., & Dumas, M.-E.
Affiliations
  • Lyon 1 Université (FR)
  • Oasi Maria SS (IT)
  • Centre National de la Recherche Scientifique (FR)
Venue
Genome Research
Published
2011-09-07
Volume
21
Issue
12
Pages
2190-2202
ISSN
1088-9051 (ISSN-L)
OpenAlex
W2161560128
Cited by
118
References
77
Citations by year
2026: 2 · 2025: 4 · 2024: 6 · 2023: 7 · 2022: 7 · 2021: 9 · 2020: 7 · 2019: 12 · 2018: 9 · 2017: 7 · 2016: 7 · 2015: 12 · 2014: 12 · 2013: 9 · 2012: 7
Type
posted content
Language
en
Open access
Locations
  • Genome Research (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • FRAXA Research Foundation
  • E-Rare
  • European Commission (239290)
  • Agence Nationale de la Recherche (ANR-08-GENO-0030, ANR-07-JCJC-0042)
  • Centre National de la Recherche Scientifique
  • FP7 People: Marie-Curie Actions
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolomics and Mass Spectrometry Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
Keywords
fragile X syndrome, FMRP, brain metabolism, metabolic biomarkers, neurotransmitter levels, osmoregulation, energy metabolism, oxidative stress, interactome mapping, intellectual disability, therapeutic target
MeSH terms
Animals, Brain, Brain Chemistry, Disease Models, Animal, Fragile X Syndrome, Humans, Biomarkers, Drug Delivery Systems, Mice, Knockout, Systems Biology, Mice, Fragile X Messenger Ribonucleoprotein 1, Metabolome

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