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Neural ECM and synaptogenesis.

Anne Heikkinen1, Taina Pihlajaniemi1, Andreas Faissner2

  • 1Oulu Center for Cell-Matrix Research, Biocenter Oulu and Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland.

Progress in Brain Research
|November 21, 2014
PubMed
Summary
This summary is machine-generated.

The extracellular matrix (ECM) plays a vital role in regulating synapse formation and function in both the central and peripheral nervous systems. ECM proteins are crucial components of the tetrapartite synapse, influencing neural computation and bodily regulation.

Keywords:
Basement membraneC1qCerebellumCollagenNeuromuscular junctionPerineuronal netProteoglycanRetinal ganglion cellSynaptogenesisTenascin

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Area of Science:

  • Neuroscience
  • Cell Biology
  • Biochemistry

Background:

  • Chemical synapses are crucial for neuronal computation and bodily regulation.
  • The extracellular matrix (ECM), including basement membranes (BMs), acts as a structural component, barrier, and filter in the nervous system.
  • Specific ECM proteins like proteoglycans and tenascins regulate synapse formation and plasticity.

Purpose of the Study:

  • To elucidate the role of ECM components in synaptic function and structure.
  • To investigate the presence and impact of BM-associated collagens in the CNS synaptic cleft.
  • To highlight the significance of ECM in the tetrapartite synapse model.

Main Methods:

  • Review and synthesis of existing literature on ECM composition and function at synapses.
  • Analysis of studies investigating ECM proteins in both the peripheral nervous system (PNS) and central nervous system (CNS).
  • Examination of the role of C1q domain-containing proteins in synaptic processes.

Main Results:

  • ECMs are integral to synapse structure and function, acting as barriers and filters.
  • BM-associated collagens are present in the CNS synaptic cleft, influencing synaptogenesis in both CNS and PNS.
  • C1q domain-containing proteins are key regulators of synapse formation, maintenance, and pruning in the CNS.

Conclusions:

  • The ECM is a critical component of the tetrapartite synapse, alongside pre/postsynaptic neurons and astrocytes.
  • ECM proteins significantly influence synaptic plasticity, formation, and maintenance.
  • Understanding ECM's role is essential for comprehending neural computation and regulation.