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Retrograde endocannabinoid signaling at inhibitory synapses in vivo.

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Title: Retrograde endocannabinoid signaling at inhibitory synapses in vivo.
Authors: Dudok, Barna, Fan, Linlin Z., Farrell, Jordan S., Malhotra, Shreya, Homidan, Jesslyn, Doo Kyung Kim, Wenardy, Celestine, Ramakrishnan, Charu, Yulong Li, Deisseroth, Karl, Soltesz, Ivan
Source: Science (pre-March 2025). 3/1/2024, Vol. 383 Issue 6686, p967-970. 4p. 3 Diagrams.
Subjects: Synapses, Cannabinoid receptors, Postsynaptic potential, Neuroplasticity, Interneurons, Hippocampus (Brain), Axons
Abstract: Endocannabinoid (eCB)-mediated suppression of inhibitory synapses has been hypothesized, but this has not yet been demonstrated to occur in vivo because of the difficulty in tracking eCB dynamics and synaptic plasticity during behavior. In mice navigating a linear track, we observed location-specific eCB signaling in hippocampal CA1 place cells, and this was detected both in the postsynaptic membrane and the presynaptic inhibitory axons. All-optical in vivo investigation of synaptic responses revealed that postsynaptic depolarization was followed by a suppression of inhibitory synaptic potentials. Furthermore, interneuron-specific cannabinoid receptor deletion altered place cell tuning. Therefore, rapid, postsynaptic, activity-dependent eCB signaling modulates inhibitory synapses on a timescale of seconds during behavior. [ABSTRACT FROM AUTHOR]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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PubType: Academic Journal
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  Data: Retrograde endocannabinoid signaling at inhibitory synapses in vivo.
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  Data: <searchLink fieldCode="AR" term="%22Dudok%2C+Barna%22">Dudok, Barna</searchLink><br /><searchLink fieldCode="AR" term="%22Fan%2C+Linlin+Z%2E%22">Fan, Linlin Z.</searchLink><br /><searchLink fieldCode="AR" term="%22Farrell%2C+Jordan+S%2E%22">Farrell, Jordan S.</searchLink><br /><searchLink fieldCode="AR" term="%22Malhotra%2C+Shreya%22">Malhotra, Shreya</searchLink><br /><searchLink fieldCode="AR" term="%22Homidan%2C+Jesslyn%22">Homidan, Jesslyn</searchLink><br /><searchLink fieldCode="AR" term="%22Doo+Kyung+Kim%22">Doo Kyung Kim</searchLink><br /><searchLink fieldCode="AR" term="%22Wenardy%2C+Celestine%22">Wenardy, Celestine</searchLink><br /><searchLink fieldCode="AR" term="%22Ramakrishnan%2C+Charu%22">Ramakrishnan, Charu</searchLink><br /><searchLink fieldCode="AR" term="%22Yulong+Li%22">Yulong Li</searchLink><br /><searchLink fieldCode="AR" term="%22Deisseroth%2C+Karl%22">Deisseroth, Karl</searchLink><br /><searchLink fieldCode="AR" term="%22Soltesz%2C+Ivan%22">Soltesz, Ivan</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 3/1/2024, Vol. 383 Issue 6686, p967-970. 4p. 3 Diagrams.
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  Data: <searchLink fieldCode="DE" term="%22Synapses%22">Synapses</searchLink><br /><searchLink fieldCode="DE" term="%22Cannabinoid+receptors%22">Cannabinoid receptors</searchLink><br /><searchLink fieldCode="DE" term="%22Postsynaptic+potential%22">Postsynaptic potential</searchLink><br /><searchLink fieldCode="DE" term="%22Neuroplasticity%22">Neuroplasticity</searchLink><br /><searchLink fieldCode="DE" term="%22Interneurons%22">Interneurons</searchLink><br /><searchLink fieldCode="DE" term="%22Hippocampus+%28Brain%29%22">Hippocampus (Brain)</searchLink><br /><searchLink fieldCode="DE" term="%22Axons%22">Axons</searchLink>
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  Data: Endocannabinoid (eCB)-mediated suppression of inhibitory synapses has been hypothesized, but this has not yet been demonstrated to occur in vivo because of the difficulty in tracking eCB dynamics and synaptic plasticity during behavior. In mice navigating a linear track, we observed location-specific eCB signaling in hippocampal CA1 place cells, and this was detected both in the postsynaptic membrane and the presynaptic inhibitory axons. All-optical in vivo investigation of synaptic responses revealed that postsynaptic depolarization was followed by a suppression of inhibitory synaptic potentials. Furthermore, interneuron-specific cannabinoid receptor deletion altered place cell tuning. Therefore, rapid, postsynaptic, activity-dependent eCB signaling modulates inhibitory synapses on a timescale of seconds during behavior. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=175741044
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        Value: 10.1126/science.adk3863
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      – Code: eng
        Text: English
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        PageCount: 4
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      – SubjectFull: Synapses
        Type: general
      – SubjectFull: Cannabinoid receptors
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      – SubjectFull: Postsynaptic potential
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      – SubjectFull: Neuroplasticity
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      – SubjectFull: Interneurons
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      – SubjectFull: Axons
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            – D: 01
              M: 03
              Text: 3/1/2024
              Type: published
              Y: 2024
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