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Updated: May 8, 2026
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Preparation of Acute Hippocampal Slices from Rats and Transgenic Mice for the Study of Synaptic Alterations during Aging and Amyloid Pathology
Published on: March 23, 2011
Acsl4-mediated Lipid Homeostasis Orchestrates Synaptic and Cognitive Plasticity.
Dong Kong1, Hu-Song Li1, Beikl Liu1
1Boston Children's Hospital/Harvard Medical School.
Research Square
|May 7, 2026
Summary
Acyl-coenzyme A synthetase 4 (Acsl4) enzyme dysfunction causes intellectual disability by disrupting lipid metabolism and brain signaling. Gene therapy or PKC activation with Bryostatin 1 can restore cognitive function.
Area of Science:
- Neuroscience
- Biochemistry
- Genetics
Background:
- Intellectual disability (ID) affects 1-3% of the population, with limited therapeutic options.
- Lipid metabolism dysregulation is implicated in ID, but mechanisms are unclear.
- Acyl-coenzyme A synthetase long-chain family member 4 (Acsl4) is a key enzyme in lipid metabolism.
Purpose of the Study:
- To investigate the role of Acsl4 in synaptic plasticity, cognition, and intellectual disability.
- To elucidate the molecular mechanisms underlying Acsl4-related ID.
- To identify potential therapeutic strategies for ID.
Main Methods:
- Generated neuron-specific Acsl4 knockout mice to model ID.
- Performed lipidomic and transcriptomic profiling.
- Utilized adeno-associated virus (AAV)-mediated gene therapy and Bryostatin 1 (PKC activator) for intervention.
Main Results:
- Acsl4 knockout mice exhibited cognitive and synaptic deficits, mimicking ID.
- Disrupted diacylglycerol-protein kinase C (PKC) signaling and reduced synapse-related gene expression were observed.
- Gene therapy restoring Acsl4_B isoform or Bryostatin 1 treatment fully rescued deficits.
Conclusions:
- Acsl4 is a critical regulator of cognitive function and synaptic plasticity, with its dysregulation causing ID.
- Deficits stem from disrupted diacylglycerol metabolism and downstream PKC signaling.
- Targeting Acsl4-mediated lipid signaling offers a promising therapeutic avenue for neurodevelopmental disorders.
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