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- W4386543604 abstract "Background and Purpose Voltage sensitivity is a common feature of many membrane proteins, including some G-protein coupled receptors (GPCRs). However, the functional consequences of voltage sensitivity in GPCRs are not well understood. Experimental approach In this study, we investigated the voltage sensitivity of the post-synaptic metabotropic glutamate receptor mGlu5 and its impact on synaptic transmission. Using biosensors and electrophysiological recordings in non-excitable HEK293T cells or neurons. Key Results We found that mGlu5 receptor function is optimal at resting membrane potentials. We observed that membrane depolarization significantly reduced mGlu5 receptor activation, Gq-PLC/PKC stimulation, Ca2+ release, and mGlu5 receptor-gated currents through TRPC6 channels or NMDA receptors. Notably, we report a previously unknown activity of the NMDA receptor at the resting potential of neurons, enabled by mGlu5. Conclusions & Implications Our findings suggest that mGlu5 receptor activity is directly regulated by membrane voltage which may have a significant impact on synaptic processes and pathophysiological functions." @default.
- W4386543604 created "2023-09-09" @default.
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- W4386543604 date "2023-09-08" @default.
- W4386543604 modified "2023-09-30" @default.
- W4386543604 title "Voltage tunes mGlu5 receptor function, impacting synaptic transmission" @default.
- W4386543604 doi "https://doi.org/10.22541/au.169416991.16162450/v1" @default.
- W4386543604 hasPublicationYear "2023" @default.
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