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Related Experiment Video

Updated: Oct 4, 2025

Immunohistochemical Visualization of Hippocampal Neuron Activity After Spatial Learning in a Mouse Model of Neurodevelopmental Disorders
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KIF2C regulates synaptic plasticity and cognition in mice through dynamic microtubule depolymerization.

Rui Zheng1,2, Yonglan Du1,2, Xintai Wang2

  • 1Department of Neurobiology and Department of Rehabilitation of the Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China.

Elife
|February 9, 2022
PubMed
Summary
This summary is machine-generated.

KIF2C, a microtubule depolymerizing protein, regulates synaptic plasticity and cognitive function by controlling microtubule dynamics in neurons. This discovery reveals a novel mechanism for how neuronal activity impacts brain function.

Keywords:
KIF2Ccognitionlong-term potentiationmicrotubule depolymerizationmouseneurosciencespine invasion

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Area of Science:

  • Neuroscience
  • Cell Biology
  • Molecular Biology

Background:

  • Dynamic microtubules are crucial for neuronal structure, cargo transport, and synaptic plasticity.
  • The precise mechanisms regulating microtubule depolymerization in synapses and dendrites remain largely unknown.

Purpose of the Study:

  • To investigate the role of KIF2C, a microtubule depolymerization protein, in the nervous system.
  • To elucidate the regulatory mechanism of KIF2C in synaptic plasticity and cognitive function.

Main Methods:

  • RNAi knockdown and conditional knockout of KIF2C in mice.
  • Assessment of microtubule dynamics, spine morphology, and AMPA receptor expression.
  • Electrophysiological recordings of excitatory transmission and long-term potentiation.
  • Behavioral tests to evaluate cognitive function.

Main Results:

  • KIF2C regulates microtubule dynamics in dendrites and microtubule invasion into spines in an activity-dependent manner.
  • KIF2C deficiency alters spine morphology and synaptic membrane expression of AMPA receptors.
  • KIF2C knockout mice exhibit impaired excitatory transmission, long-term potentiation, and deficits in cognitive behaviors.

Conclusions:

  • KIF2C plays a critical role in structural and functional synaptic plasticity and cognitive behavior.
  • KIF2C acts as a novel regulator of activity-dependent microtubule dynamics in neurons.
  • This study uncovers a new function for KIF2C in the nervous system, linking microtubule regulation to cognition.