Npas4 impairs fear memory via phosphorylated HDAC5 induced by CGRP administration in mice

Abstract The relationships among neuropeptide, calcitonin gene-related peptide (CGRP), and memory formation remain unclear. Here, we showed that the intracerebroventricular administration of CGRP impaired the traumatic fear memories, in a widely studied animal model of post-traumatic stress disorder...

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Main Authors: Narumi Hashikawa-Hobara, Shuta Mishima, Chihiro Okujima, Youdai Shitanishi, Naoya Hashikawa
Format: Article
Language:English
Published: Nature Portfolio 2021-03-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-86556-w
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author Narumi Hashikawa-Hobara
Shuta Mishima
Chihiro Okujima
Youdai Shitanishi
Naoya Hashikawa
author_facet Narumi Hashikawa-Hobara
Shuta Mishima
Chihiro Okujima
Youdai Shitanishi
Naoya Hashikawa
author_sort Narumi Hashikawa-Hobara
collection DOAJ
description Abstract The relationships among neuropeptide, calcitonin gene-related peptide (CGRP), and memory formation remain unclear. Here, we showed that the intracerebroventricular administration of CGRP impaired the traumatic fear memories, in a widely studied animal model of post-traumatic stress disorder. We found that CGRP administration suppressed fear memory by increasing neuronal PAS domain protein 4 (Npas4), phosphorylated histone deacetylase 5 (HDAC5), and protein kinase D (PKD). We also discovered that Npas4 knockdown inhibited CGRP-mediated fear memory. CGRP decreased the binding between HDAC5 and the Npas4 enhancer site and increased the binding between acetylated histone H3 and the Npas4 enhancer site. The pharmacological inhibition or knockdown of PKD attenuated the CGRP-mediated impairment of fear memory and the increased phosphorylation of HDAC5 and Npas4 expression. Our findings demonstrated that the CGRP-PKD pathway was associated with the histone H3 acetylation-Npas4 pathway. These results suggested a novel function for CGRP on fear memory, through epigenetic regulation.
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spelling doaj.art-fa12b5d6b2b149528e0bf685a1be2b222022-12-21T23:10:50ZengNature PortfolioScientific Reports2045-23222021-03-0111111310.1038/s41598-021-86556-wNpas4 impairs fear memory via phosphorylated HDAC5 induced by CGRP administration in miceNarumi Hashikawa-Hobara0Shuta Mishima1Chihiro Okujima2Youdai Shitanishi3Naoya Hashikawa4Department of Life Science, Okayama University of ScienceDepartment of Life Science, Okayama University of ScienceDepartment of Life Science, Okayama University of ScienceDepartment of Life Science, Okayama University of ScienceDepartment of Life Science, Okayama University of ScienceAbstract The relationships among neuropeptide, calcitonin gene-related peptide (CGRP), and memory formation remain unclear. Here, we showed that the intracerebroventricular administration of CGRP impaired the traumatic fear memories, in a widely studied animal model of post-traumatic stress disorder. We found that CGRP administration suppressed fear memory by increasing neuronal PAS domain protein 4 (Npas4), phosphorylated histone deacetylase 5 (HDAC5), and protein kinase D (PKD). We also discovered that Npas4 knockdown inhibited CGRP-mediated fear memory. CGRP decreased the binding between HDAC5 and the Npas4 enhancer site and increased the binding between acetylated histone H3 and the Npas4 enhancer site. The pharmacological inhibition or knockdown of PKD attenuated the CGRP-mediated impairment of fear memory and the increased phosphorylation of HDAC5 and Npas4 expression. Our findings demonstrated that the CGRP-PKD pathway was associated with the histone H3 acetylation-Npas4 pathway. These results suggested a novel function for CGRP on fear memory, through epigenetic regulation.https://doi.org/10.1038/s41598-021-86556-w
spellingShingle Narumi Hashikawa-Hobara
Shuta Mishima
Chihiro Okujima
Youdai Shitanishi
Naoya Hashikawa
Npas4 impairs fear memory via phosphorylated HDAC5 induced by CGRP administration in mice
Scientific Reports
title Npas4 impairs fear memory via phosphorylated HDAC5 induced by CGRP administration in mice
title_full Npas4 impairs fear memory via phosphorylated HDAC5 induced by CGRP administration in mice
title_fullStr Npas4 impairs fear memory via phosphorylated HDAC5 induced by CGRP administration in mice
title_full_unstemmed Npas4 impairs fear memory via phosphorylated HDAC5 induced by CGRP administration in mice
title_short Npas4 impairs fear memory via phosphorylated HDAC5 induced by CGRP administration in mice
title_sort npas4 impairs fear memory via phosphorylated hdac5 induced by cgrp administration in mice
url https://doi.org/10.1038/s41598-021-86556-w
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