Cited by 219Genetics and Neurodevelopmental DisordersProtease and Inhibitor MechanismsNeurogenesis and neuroplasticity mechanisms

A delicate balance: role of MMP-9 in brain development and pathophysiology of neurodevelopmental disorders.

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Reinhard, Sarah M., Razak, Khaleel, Ethell, Iryna M.·2015·Frontiers in Cellular Neuroscience

Abstract

The extracellular matrix (ECM) is a critical regulator of neural network development and plasticity. As neuronal circuits develop, the ECM stabilizes synaptic contacts, while its cleavage has both permissive and active roles in the regulation of plasticity. Matrix metalloproteinase 9 (MMP-9) is a member of a large family of zinc-dependent endopeptidases that can cleave ECM and several cell surface receptors allowing for synaptic and circuit level reorganization. It is becoming increasingly clear that the regulated activity of MMP-9 is critical for central nervous system (CNS) development. In particular, MMP-9 has a role in the development of sensory circuits during early postnatal periods, called 'critical periods.' MMP-9 can regulate sensory-mediated, local circuit reorganization through its ability to control synaptogenesis, axonal pathfinding and myelination. Although activity-dependent activation of MMP-9 at specific synapses plays an important role in multiple plasticity mechanisms throughout the CNS, misregulated activation of the enzyme is implicated in a number of neurodegenerative disorders, including traumatic brain injury, multiple sclerosis, and Alzheimer's disease. Growing evidence also suggests a role for MMP-9 in the pathophysiology of neurodevelopmental disorders including Fragile X Syndrome. This review outlines the various actions of MMP-9 during postnatal brain development, critical for future studies exploring novel therapeutic strategies for neurodevelopmental disorders.

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Authors
Reinhard, S. M., Razak, K., & Ethell, I. M.
Affiliations
University of California, Riverside (US)
Corresponding author
Ethell, Iryna M.
Venue
Frontiers in Cellular Neuroscience
Published
2015-07-29
Volume
9
Pages
280-280
ISSN
1662-5102 (ISSN-L)
OpenAlex
W1504544942
Cited by
219
References
145
Citations by year
2026: 9 · 2025: 18 · 2024: 16 · 2023: 28 · 2022: 32 · 2021: 34 · 2020: 29 · 2019: 17 · 2018: 14 · 2017: 7 · 2016: 11 · 2015: 4
FWCI
1.56
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Cellular Neuroscience (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Science Foundation
  • FRAXA Research Foundation
  • National Institute of Mental Health
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Protease and Inhibitor Mechanisms
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
MMP-9, extracellular matrix, brain development, neurodevelopmental disorders, critical period, synaptogenesis, axon guidance, myelination, synaptic plasticity, fragile X syndrome, traumatic brain injury, multiple sclerosis, Alzheimer's disease

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