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Contributions of microglia to structural synaptic plasticity

Kyung Ho Kim1, Sung Min Son1, Inhee Mook-Jung1

  • 1Department of Biochemistry and Biomedical Sciences, College of Medicine, Seoul National University, Seoul, Korea.

Journal of Experimental Neuroscience
|August 27, 2014
PubMed

Insights

Microglia, the brain's immune cells, interact with synapses to influence neural function. This review explores their complex role in synaptic plasticity and neurodegenerative diseases like Alzheimer's disease (AD).

Area of Science:

  • Neuroscience
  • Immunology
  • Cell Biology

Background:

  • Synaptic plasticity relies on neuron-glia communication.
  • Microglia, the brain's resident macrophages, modulate neural activity and immune responses.
  • Microglial dysfunction is implicated in neurodegenerative disorders, including Alzheimer's disease (AD).

Purpose of the Study:

  • To review neuronal-microglial signaling at the synapse.
  • To examine microglia's role in synaptic function in pathological conditions, particularly AD.
  • To focus on in vivo findings using 2-photon microscopy.

Main Methods:

  • Literature review focusing on neuronal-microglial interactions.
  • Analysis of in vivo studies utilizing 2-photon microscopy.
  • Examination of microglial involvement in synaptic regulation.

Main Results:

  • Microglia continuously interact with dendritic spines, regulating structural synaptic changes.
  • Neuronal-microglial signaling critically influences synaptic plasticity.
  • The precise role of microglia in AD pathogenesis remains a subject of ongoing research and debate.

Conclusions:

  • Microglia play a dual role in synaptic function, impacting both normal plasticity and disease states.
  • Understanding neuronal-microglial communication is crucial for deciphering neurodegenerative disease mechanisms.
  • Further research, especially in vivo, is needed to clarify microglia's controversial role in AD.
Keywords:
Alzheimer’s disease (AD)MicrogliaSynaptic plasticityneuron-microglia crosstalk

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