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Related Experiment Video

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Regulation of spine structural plasticity by Arc/Arg3.1.

Thomas M Newpher1, Scott Harris1, Jasmine Pringle1

  • 1Duke Institute for Brain Sciences, Duke University, Durham, NC 27708, USA.

Seminars in Cell & Developmental Biology
|September 26, 2017
PubMed
Summary

The activity-regulated cytoskeleton-associated protein (Arc) is crucial for synaptic plasticity and memory. This review details Arc's role in structural changes of dendritic spines, impacting learning and memory consolidation.

Keywords:
ActinArc/Arg3.1EndocytosisLong-term potentiationStructural plasticity

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Area of Science:

  • Neuroscience
  • Molecular Biology
  • Cell Biology

Background:

  • Dendritic spines are key sites for excitatory synapses and are essential for memory formation.
  • Structural changes in dendritic spines are linked to learning and synaptic plasticity.
  • The activity-regulated cytoskeleton-associated protein (Arc) is a critical regulator of synaptic function.

Purpose of the Study:

  • To review the multifaceted roles of the Arc protein in synaptic plasticity.
  • To highlight Arc's influence on the structural and functional dynamics of dendritic spines.
  • To discuss Arc's involvement in memory consolidation and neurological diseases.

Main Methods:

  • This review synthesizes existing research findings.
  • It focuses on studies investigating the molecular mechanisms of Arc.
  • The review examines the link between Arc, actin cytoskeleton, and membrane trafficking.

Main Results:

  • Arc plays a diverse role in the expression of synaptic plasticity.
  • Arc influences activity-dependent structural and functional changes in dendritic spines.
  • Arc is implicated in memory consolidation and has relevance to disease pathology.

Conclusions:

  • Arc is a pivotal protein regulating synaptic plasticity and spine morphology.
  • Understanding Arc's function is vital for comprehending memory formation and neurological disorders.
  • Further research into Arc may offer therapeutic insights for brain diseases.