Projects per year
Abstract
Long-term potentiation (LTP) in the rat hippocampus is the most extensively studied cellular model for learning and memory. Induction of classical LTP involves an NMDA-receptor- and calcium-dependent increase in functional synaptic AMPA receptors, mediated by enhanced recycling of internalized AMPA receptors back to the postsynaptic membrane. Here we report a physiologically relevant NMDA-receptor-independent mechanism that drives increased AMPA receptor recycling and LTP. This pathway requires the metabotropic action of kainate receptors and activation of G protein, protein kinase C and phospholipase C. Like classical LTP, kainate-receptor-dependent LTP recruits recycling endosomes to spines, enhances synaptic recycling of AMPA receptors to increase their surface expression and elicits structural changes in spines, including increased growth and maturation. These data reveal a new and, to our knowledge, previously unsuspected role for postsynaptic kainate receptors in the induction of functional and structural plasticity in the hippocampus.
Original language | English |
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Pages (from-to) | 529–539 |
Number of pages | 11 |
Journal | Nature Neuroscience |
Volume | 20 |
Issue number | 4 |
Early online date | 13 Feb 2017 |
DOIs | |
Publication status | Published - Apr 2017 |
Keywords
- Hippocampus
- Long-term potentiation
- Membrane proteins
Fingerprint
Dive into the research topics of 'Metabotropic action of postsynaptic kainate receptors triggers hippocampal long-term potentiation'. Together they form a unique fingerprint.Projects
- 2 Finished
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Roles of protein SUMOylation in AMPA receptor trafficking, synaptic dysfunction and cognitive impairment in dementia
1/03/14 → 30/06/18
Project: Research
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PROTEIN INTERACTIONS AND POST TRANSATIONAL MODIFICATION IN THE TRAFFICKING OF NEURONAL KAINATE RECEPTORS
1/01/08 → 1/10/11
Project: Research
Equipment
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Wolfson Bioimaging Facility
Mark Jepson (Manager)
Faculty of Life SciencesFacility/equipment: Facility
Profiles
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Professor Jeremy M Henley
- School of Biochemistry - Professor of Molecular Neuroscience
- Dynamic Cell Biology
- Bristol Neuroscience
Person: Academic , Member