Cited by 267Neuroscience and Neuropharmacology ResearchNeuroinflammation and Neurodegeneration MechanismsNeurogenesis and neuroplasticity mechanisms

Molecular signals of plasticity at the tetrapartite synapse

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Dityatev, Alexander, Rusakov, Dmitri A·2011·Current Opinion in Neurobiology

Abstract

The emergence of astroglia as an important participant of the synaptic machinery has led to the 'tripartite synapse' hypothesis. Recent findings suggest that synaptic signaling also involves the surrounding extracellular matrix (ECM). The ECM can incorporate and store molecular traces of both neuronal and glial activities. It can also modulate function of local receptors or ion channels and send diffuse molecular signals using products of its use-dependent proteolytic cleavage. Recent experimental findings implicate the ECM in mechanisms of synaptic plasticity and glial remodeling, thus lending support to the 'tetrapartite synapse' concept. This inclusive view might help to understand better the mechanisms underlying signal integration and novel forms of long-term homeostatic regulation in the brain.

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Crossref · 10.1016/j.conb.2010.12.006

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  • In adulthood, mature PNNs regulate synaptic functions representing the fourth element of the 'tetrapartite' synapse.

    “In adulthood, mature PNNs regulate synaptic functions representing the fourth element of what has been termed the ‘tetrapartite' synapse.85, 86”
  • Regulation of synaptic connectivity involves at least four main cellular/molecular components: the presynaptic neuron, postsynaptic neuron, glia, and the ECM, which together make up the tetrapartite synapse.

    “Regulation of synaptic connectivity involves at least four main cellular/molecular components: the presynaptic neuron, postsynaptic neuron, glia, and the ECM, which together make up the “tetrapartite synapse” (Dityatev and Rusakov, 2011).”

    From Adult neurogenesis, glia, and the extracellular matrix (2019) · cites this paper as Dityatev and Rusakov, 2011

  • The ECM aids in the communication between neurons and glial cells by incorporating their secreted signaling molecules into the extracellular space where they interact with other ECM molecules and/or cell surface receptors.

    “The ECM aids in the communication between neurons and glial cells by incorporating their secreted signaling molecules into the extracellular space where they interact with other ECM molecules and/or cell surface receptors (Dityatev and Rusakov, 2011).”

    From Adult neurogenesis, glia, and the extracellular matrix (2019) · cites this paper as Dityatev and Rusakov, 2011

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Authors
Dityatev, A., & Rusakov, D. A.
Affiliations
  • Italian Institute of Technology (IT)
  • National Hospital for Neurology and Neurosurgery (GB)
Corresponding author
Dityatev, Alexander
Venue
Current Opinion in Neurobiology
Publisher
Elsevier BV
Published
2011-04
Volume
21
Issue
2
Pages
353-359
ISSN
0959-4388 (ISSN-L)
OpenAlex
W2088446288
Cited by
267
References
86
Citations by year
2026: 17 · 2025: 17 · 2024: 20 · 2023: 23 · 2022: 14 · 2021: 22 · 2020: 16 · 2019: 17 · 2018: 21 · 2017: 17 · 2016: 22 · 2015: 16 · 2014: 17 · 2013: 11 · 2012: 15
FWCI
1.37
Type
journal article
Language
en
Open access
Locations
  • Current Opinion in Neurobiology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
Wellcome Trust
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
synaptic plasticity, astroglia, extracellular matrix, synaptic signaling, proteolytic cleavage, signal integration, homeostatic regulation
MeSH terms
Animals, Astrocytes, Brain, Extracellular Matrix, Humans, Neuronal Plasticity, Neurons, Synapses, Signal Transduction

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