Rabphilin-3A drives structural modifications of dendritic spines induced by long-term potentiation
The interaction of Rabphilin-3A (Rph3A) with the NMDA receptor (NMDAR) in hippocampal neurons plays a pivotal role in the synaptic retention of this receptor. The formation of a Rph3A/NMDAR complex is needed for the induction of long-term potentiation and NMDAR-dependent hippocampal behaviors, such...
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| Hauptverfasser: | , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
11 May 2022
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| In: |
Cells
Year: 2022, Jahrgang: 11, Heft: 10, Pages: 1-16 |
| ISSN: | 2073-4409 |
| DOI: | 10.3390/cells11101616 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.3390/cells11101616 Verlag, lizenzpflichtig, Volltext: https://www.mdpi.com/2073-4409/11/10/1616 
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| Verfasserangaben: | Luca Franchini, Jennifer Stanic, Marta Barzasi, Elisa Zianni, Daniela Mauceri, Monica Diluca and Fabrizio Gardoni |
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| 245 | 1 | 0 | |a Rabphilin-3A drives structural modifications of dendritic spines induced by long-term potentiation |c Luca Franchini, Jennifer Stanic, Marta Barzasi, Elisa Zianni, Daniela Mauceri, Monica Diluca and Fabrizio Gardoni |
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| 500 | |a This article belongs to the special issue "The role of NMDA receptor signaling in learning and memory and neuropsychiatric disorders" | ||
| 520 | |a The interaction of Rabphilin-3A (Rph3A) with the NMDA receptor (NMDAR) in hippocampal neurons plays a pivotal role in the synaptic retention of this receptor. The formation of a Rph3A/NMDAR complex is needed for the induction of long-term potentiation and NMDAR-dependent hippocampal behaviors, such as spatial learning. Moreover, Rph3A can also interact with AMPA receptors (AMPARs) through the formation of a complex with myosin Va. Here, we used a confocal imaging approach to show that Rph3A overexpression in primary hippocampal neuronal cultures is sufficient to promote increased dendritic spine density. This morphological event is correlated with an increase in GluN2A-containing NMDARs at synaptic membranes and a decrease in the surface levels of GluA1-containing AMPARs. These molecular and morphological modifications of dendritic spines are sufficient to occlude the spine formation induced by long-term potentiation, but do not prevent the spine loss induced by long-term depression. Overall, our results demonstrate a key role for Rph3A in the modulation of structural synaptic plasticity at hippocampal synapses that correlates with its interactions with both NMDARs and AMPARs. | ||
| 650 | 4 | |a AMPA receptors | |
| 650 | 4 | |a dendritic spines | |
| 650 | 4 | |a long-term potentiation | |
| 650 | 4 | |a NMDA receptors | |
| 700 | 1 | |a Stanic, Jennifer |e VerfasserIn |4 aut | |
| 700 | 1 | |a Barzasi, Marta |e VerfasserIn |4 aut | |
| 700 | 1 | |a Zianni, Elisa |e VerfasserIn |4 aut | |
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| 700 | 1 | |a Diluca, Monica |e VerfasserIn |4 aut | |
| 700 | 1 | |a Gardoni, Fabrizio |e VerfasserIn |4 aut | |
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