Cholecystokinin facilitates the formation of long-term heterosynaptic plasticity in the distal subiculum

Abstract It has been well established that Cornu Ammonis-(CA1) and subiculum (SUB) serve as the major output components of the entorhinal-hippocampal circuitry. Nevertheless, how the neuromodulators regulate the neurocircuitry in hippocampal formation has remained elusive. Cholecystokinin (CCK), is...

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Main Authors: Fengwen Huang, Abdul Baset, Stephen Temitayo Bello, Xi Chen, Jufang He
Format: Article
Language:English
Published: Nature Portfolio 2025-02-01
Series:Communications Biology
Online Access:https://doi.org/10.1038/s42003-025-07597-9
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author Fengwen Huang
Abdul Baset
Stephen Temitayo Bello
Xi Chen
Jufang He
author_facet Fengwen Huang
Abdul Baset
Stephen Temitayo Bello
Xi Chen
Jufang He
author_sort Fengwen Huang
collection DOAJ
description Abstract It has been well established that Cornu Ammonis-(CA1) and subiculum (SUB) serve as the major output components of the entorhinal-hippocampal circuitry. Nevertheless, how the neuromodulators regulate the neurocircuitry in hippocampal formation has remained elusive. Cholecystokinin (CCK), is the most abundant neuropeptide in the central nervous system, which broadly regulates the animal’s physiological status at multiple levels, including neuroplasticity and its behavioral consequences. Here, we uncover that exogenous CCK potentiates the excitatory synaptic transmission in the CA1-SUB projections via CCK-B receptor. Dual-color light theta burst stimulation elicits heterosynaptic long-term potentiation in distal SUB region. Light activation of medial entorhinal cortex (MEC) derived CCK-positive neurons triggers the CCK release in the SUB. Neuronal activities of SUB-projecting MECCCK neurons are necessary for conveying and processing of navigation-related information. In conclusion, our findings prove a crucial role of CCK in regulating neurobiological functions in the SUB region.
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spelling doaj-art-8afa276a6b734b119f07bd71d91b66532025-02-02T12:37:19ZengNature PortfolioCommunications Biology2399-36422025-02-018111310.1038/s42003-025-07597-9Cholecystokinin facilitates the formation of long-term heterosynaptic plasticity in the distal subiculumFengwen Huang0Abdul Baset1Stephen Temitayo Bello2Xi Chen3Jufang He4Department of Neuroscience, City University of Hong KongDepartment of Neuroscience, City University of Hong KongDepartment of Neuroscience, City University of Hong KongDepartment of Neuroscience, City University of Hong KongDepartment of Neuroscience, City University of Hong KongAbstract It has been well established that Cornu Ammonis-(CA1) and subiculum (SUB) serve as the major output components of the entorhinal-hippocampal circuitry. Nevertheless, how the neuromodulators regulate the neurocircuitry in hippocampal formation has remained elusive. Cholecystokinin (CCK), is the most abundant neuropeptide in the central nervous system, which broadly regulates the animal’s physiological status at multiple levels, including neuroplasticity and its behavioral consequences. Here, we uncover that exogenous CCK potentiates the excitatory synaptic transmission in the CA1-SUB projections via CCK-B receptor. Dual-color light theta burst stimulation elicits heterosynaptic long-term potentiation in distal SUB region. Light activation of medial entorhinal cortex (MEC) derived CCK-positive neurons triggers the CCK release in the SUB. Neuronal activities of SUB-projecting MECCCK neurons are necessary for conveying and processing of navigation-related information. In conclusion, our findings prove a crucial role of CCK in regulating neurobiological functions in the SUB region.https://doi.org/10.1038/s42003-025-07597-9
spellingShingle Fengwen Huang
Abdul Baset
Stephen Temitayo Bello
Xi Chen
Jufang He
Cholecystokinin facilitates the formation of long-term heterosynaptic plasticity in the distal subiculum
Communications Biology
title Cholecystokinin facilitates the formation of long-term heterosynaptic plasticity in the distal subiculum
title_full Cholecystokinin facilitates the formation of long-term heterosynaptic plasticity in the distal subiculum
title_fullStr Cholecystokinin facilitates the formation of long-term heterosynaptic plasticity in the distal subiculum
title_full_unstemmed Cholecystokinin facilitates the formation of long-term heterosynaptic plasticity in the distal subiculum
title_short Cholecystokinin facilitates the formation of long-term heterosynaptic plasticity in the distal subiculum
title_sort cholecystokinin facilitates the formation of long term heterosynaptic plasticity in the distal subiculum
url https://doi.org/10.1038/s42003-025-07597-9
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