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Investigating Long-term Synaptic Plasticity in Interlamellar Hippocampus CA1 by Electrophysiological Field Recording
Published on: August 11, 2019
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Presynaptic Rac1 in the hippocampus selectively regulates working memory
Jaebin Kim1, Edwin Bustamante1, Peter Sotonyi2
1Department of Cell Biology, Duke University Medical School, Durham, North Carolina, USA.
Biorxiv : the Preprint Server for Biology
|April 2, 2024
Summary
Rac1 signaling impacts spatial working memory via presynaptic terminals and long-term memory via postsynaptic sites. This study reveals Rac1
Area of Science:
- Neuroscience
- Cell Biology
- Molecular Biology
Background:
- Rac1, a small GTPase, is a key signal transducer involved in actin remodeling and phosphorylation.
- Rac1 signaling influences hippocampal-dependent working memory, learning, and synaptic plasticity.
- The precise link between Rac1's roles in cognitive functions and synaptic plasticity remains unclear.
Conclusions:
- Rac1 signaling plays a critical, previously unrecognized role at presynaptic terminals in cognitive processes.
- Presynaptic Rac1 regulates synaptic vesicle function and impacts spatial working memory.
- This study provides novel insights into the molecular mechanisms underlying Rac1's presynaptic functions in cognition.
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