The Antidepressant-like Activity and Cognitive Enhancing Effects of the Combined Administration of (<i>R</i>)-Ketamine and LY341495 in the CUMS Model of Depression in Mice Are Related to the Modulation of Excitatory Synaptic Transmission and LTP in the PFC
(<i>S</i>)-Ketamine is the first rapid-acting antidepressant drug (RAAD) introduced for the treatment of depression. However, research is still being carried out on the search for further RAADs that will be not only effective but also safe to use. Recent data have indicated that the comb...
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MDPI AG
2023-02-01
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| Online Access: | https://www.mdpi.com/1424-8247/16/2/288 |
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| author | Agnieszka Pałucha-Poniewiera Bartosz Bobula Anna Rafało-Ulińska |
| author_facet | Agnieszka Pałucha-Poniewiera Bartosz Bobula Anna Rafało-Ulińska |
| author_sort | Agnieszka Pałucha-Poniewiera |
| collection | DOAJ |
| description | (<i>S</i>)-Ketamine is the first rapid-acting antidepressant drug (RAAD) introduced for the treatment of depression. However, research is still being carried out on the search for further RAADs that will be not only effective but also safe to use. Recent data have indicated that the combined administration of (<i>R</i>)-ketamine and the mGlu<sub>2/3</sub> receptor antagonist LY341495 (mixRL) induces rapid and sustained effects in the chronic unpredictable mild stress (CUMS) model of depression in mice, and the use of this drug combination is associated with a low risk of undesirable effects. Considering the possible influence of stress on cortical plasticity and, on the other hand, the role of this plasticity in the mechanism of action of ketamine, we decided to investigate whether mixed RL affects synaptic plasticity in the prefrontal cortex (PFC) in the CUMS model of depression using electrophysiological techniques and explore whether these effects are related to memory impairments. Using behavioral methods, we found that a single administration of mixRL reversed CUMS-induced PFC-dependent memory deficits and alleviated depression-like effects induced by CUMS. In turn, electrophysiological experiments indicated that the amplitude of field potentials as well as paired-pulse responses in CUMS mice were increased, and mixRL was found to reverse these effects. Additionally, the magnitude of long-term potentiation (LTP) was reduced in CUMS mice, and mixRL was shown to restore this parameter. In summary, mixRL appeared to exert its antidepressant effects and cognitive enhancing effects in a mouse model of depression, at least in part, by mechanisms involving modulation of glutamatergic transmission and LTP in the PFC. |
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| issn | 1424-8247 |
| language | English |
| last_indexed | 2024-03-11T08:17:32Z |
| publishDate | 2023-02-01 |
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| record_format | Article |
| series | Pharmaceuticals |
| spelling | doaj.art-04f306a5529e4c818fb37cfb2bf36d982023-11-16T22:37:35ZengMDPI AGPharmaceuticals1424-82472023-02-0116228810.3390/ph16020288The Antidepressant-like Activity and Cognitive Enhancing Effects of the Combined Administration of (<i>R</i>)-Ketamine and LY341495 in the CUMS Model of Depression in Mice Are Related to the Modulation of Excitatory Synaptic Transmission and LTP in the PFCAgnieszka Pałucha-Poniewiera0Bartosz Bobula1Anna Rafało-Ulińska2Department of Neurobiology, Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna Street 12, 31-343 Krakow, PolandDepartment of Physiology, Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna Street 12, 31-343 Krakow, PolandDepartment of Neurobiology, Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna Street 12, 31-343 Krakow, Poland(<i>S</i>)-Ketamine is the first rapid-acting antidepressant drug (RAAD) introduced for the treatment of depression. However, research is still being carried out on the search for further RAADs that will be not only effective but also safe to use. Recent data have indicated that the combined administration of (<i>R</i>)-ketamine and the mGlu<sub>2/3</sub> receptor antagonist LY341495 (mixRL) induces rapid and sustained effects in the chronic unpredictable mild stress (CUMS) model of depression in mice, and the use of this drug combination is associated with a low risk of undesirable effects. Considering the possible influence of stress on cortical plasticity and, on the other hand, the role of this plasticity in the mechanism of action of ketamine, we decided to investigate whether mixed RL affects synaptic plasticity in the prefrontal cortex (PFC) in the CUMS model of depression using electrophysiological techniques and explore whether these effects are related to memory impairments. Using behavioral methods, we found that a single administration of mixRL reversed CUMS-induced PFC-dependent memory deficits and alleviated depression-like effects induced by CUMS. In turn, electrophysiological experiments indicated that the amplitude of field potentials as well as paired-pulse responses in CUMS mice were increased, and mixRL was found to reverse these effects. Additionally, the magnitude of long-term potentiation (LTP) was reduced in CUMS mice, and mixRL was shown to restore this parameter. In summary, mixRL appeared to exert its antidepressant effects and cognitive enhancing effects in a mouse model of depression, at least in part, by mechanisms involving modulation of glutamatergic transmission and LTP in the PFC.https://www.mdpi.com/1424-8247/16/2/288antidepressantCUMSLTPLY341495mGlu<sub>2</sub> receptor(<i>R</i>)-ketamine |
| spellingShingle | Agnieszka Pałucha-Poniewiera Bartosz Bobula Anna Rafało-Ulińska The Antidepressant-like Activity and Cognitive Enhancing Effects of the Combined Administration of (<i>R</i>)-Ketamine and LY341495 in the CUMS Model of Depression in Mice Are Related to the Modulation of Excitatory Synaptic Transmission and LTP in the PFC Pharmaceuticals antidepressant CUMS LTP LY341495 mGlu<sub>2</sub> receptor (<i>R</i>)-ketamine |
| title | The Antidepressant-like Activity and Cognitive Enhancing Effects of the Combined Administration of (<i>R</i>)-Ketamine and LY341495 in the CUMS Model of Depression in Mice Are Related to the Modulation of Excitatory Synaptic Transmission and LTP in the PFC |
| title_full | The Antidepressant-like Activity and Cognitive Enhancing Effects of the Combined Administration of (<i>R</i>)-Ketamine and LY341495 in the CUMS Model of Depression in Mice Are Related to the Modulation of Excitatory Synaptic Transmission and LTP in the PFC |
| title_fullStr | The Antidepressant-like Activity and Cognitive Enhancing Effects of the Combined Administration of (<i>R</i>)-Ketamine and LY341495 in the CUMS Model of Depression in Mice Are Related to the Modulation of Excitatory Synaptic Transmission and LTP in the PFC |
| title_full_unstemmed | The Antidepressant-like Activity and Cognitive Enhancing Effects of the Combined Administration of (<i>R</i>)-Ketamine and LY341495 in the CUMS Model of Depression in Mice Are Related to the Modulation of Excitatory Synaptic Transmission and LTP in the PFC |
| title_short | The Antidepressant-like Activity and Cognitive Enhancing Effects of the Combined Administration of (<i>R</i>)-Ketamine and LY341495 in the CUMS Model of Depression in Mice Are Related to the Modulation of Excitatory Synaptic Transmission and LTP in the PFC |
| title_sort | antidepressant like activity and cognitive enhancing effects of the combined administration of i r i ketamine and ly341495 in the cums model of depression in mice are related to the modulation of excitatory synaptic transmission and ltp in the pfc |
| topic | antidepressant CUMS LTP LY341495 mGlu<sub>2</sub> receptor (<i>R</i>)-ketamine |
| url | https://www.mdpi.com/1424-8247/16/2/288 |
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