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Dissecting the Roles of GABA and Neuropeptides from Rat Central Amygdala CRF Neurons in Anxiety and Fear Learning
Central amygdala (CeA) neurons that produce corticotropin-releasing factor (CRF) regulate anxiety and fear learning. These CeA(CRF) neurons release GABA and several neuropeptides predicted to play important yet opposing roles in these behaviors. We dissected the relative roles of GABA, CRF, dynorphi...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6879108/ https://www.ncbi.nlm.nih.gov/pubmed/31577943 http://dx.doi.org/10.1016/j.celrep.2019.08.083 |
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author | Pomrenze, Matthew B. Giovanetti, Simone M. Maiya, Rajani Gordon, Adam G. Kreeger, Lauren J. Messing, Robert O. |
author_facet | Pomrenze, Matthew B. Giovanetti, Simone M. Maiya, Rajani Gordon, Adam G. Kreeger, Lauren J. Messing, Robert O. |
author_sort | Pomrenze, Matthew B. |
collection | PubMed |
description | Central amygdala (CeA) neurons that produce corticotropin-releasing factor (CRF) regulate anxiety and fear learning. These CeA(CRF) neurons release GABA and several neuropeptides predicted to play important yet opposing roles in these behaviors. We dissected the relative roles of GABA, CRF, dynorphin, and neurotensin in CeA(CRF) neurons in anxiety and fear learning by disrupting their expression using RNAi in male rats. GABA, but not CRF, dynorphin, or neurotensin, regulates baseline anxiety-like behavior. In contrast, chemogenetic stimulation of CeA(CRF) neurons evokes anxiety-like behavior dependent on CRF and dynorphin, but not neurotensin. Finally, knockdown of CRF and dynorphin impairs fear learning, whereas knockdown of neurotensin enhances it. Our results demonstrate distinct behavioral roles for GABA, CRF, dynorphin, and neurotensin in a subpopulation of CeA neurons. These results highlight the importance of considering the repertoire of signaling molecules released from a given neuronal population when studying the circuit basis of behavior. |
format | Online Article Text |
id | pubmed-6879108 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
record_format | MEDLINE/PubMed |
spelling | pubmed-68791082019-11-26 Dissecting the Roles of GABA and Neuropeptides from Rat Central Amygdala CRF Neurons in Anxiety and Fear Learning Pomrenze, Matthew B. Giovanetti, Simone M. Maiya, Rajani Gordon, Adam G. Kreeger, Lauren J. Messing, Robert O. Cell Rep Article Central amygdala (CeA) neurons that produce corticotropin-releasing factor (CRF) regulate anxiety and fear learning. These CeA(CRF) neurons release GABA and several neuropeptides predicted to play important yet opposing roles in these behaviors. We dissected the relative roles of GABA, CRF, dynorphin, and neurotensin in CeA(CRF) neurons in anxiety and fear learning by disrupting their expression using RNAi in male rats. GABA, but not CRF, dynorphin, or neurotensin, regulates baseline anxiety-like behavior. In contrast, chemogenetic stimulation of CeA(CRF) neurons evokes anxiety-like behavior dependent on CRF and dynorphin, but not neurotensin. Finally, knockdown of CRF and dynorphin impairs fear learning, whereas knockdown of neurotensin enhances it. Our results demonstrate distinct behavioral roles for GABA, CRF, dynorphin, and neurotensin in a subpopulation of CeA neurons. These results highlight the importance of considering the repertoire of signaling molecules released from a given neuronal population when studying the circuit basis of behavior. 2019-10-01 /pmc/articles/PMC6879108/ /pubmed/31577943 http://dx.doi.org/10.1016/j.celrep.2019.08.083 Text en This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Article Pomrenze, Matthew B. Giovanetti, Simone M. Maiya, Rajani Gordon, Adam G. Kreeger, Lauren J. Messing, Robert O. Dissecting the Roles of GABA and Neuropeptides from Rat Central Amygdala CRF Neurons in Anxiety and Fear Learning |
title | Dissecting the Roles of GABA and Neuropeptides from Rat Central Amygdala CRF Neurons in Anxiety and Fear Learning |
title_full | Dissecting the Roles of GABA and Neuropeptides from Rat Central Amygdala CRF Neurons in Anxiety and Fear Learning |
title_fullStr | Dissecting the Roles of GABA and Neuropeptides from Rat Central Amygdala CRF Neurons in Anxiety and Fear Learning |
title_full_unstemmed | Dissecting the Roles of GABA and Neuropeptides from Rat Central Amygdala CRF Neurons in Anxiety and Fear Learning |
title_short | Dissecting the Roles of GABA and Neuropeptides from Rat Central Amygdala CRF Neurons in Anxiety and Fear Learning |
title_sort | dissecting the roles of gaba and neuropeptides from rat central amygdala crf neurons in anxiety and fear learning |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6879108/ https://www.ncbi.nlm.nih.gov/pubmed/31577943 http://dx.doi.org/10.1016/j.celrep.2019.08.083 |
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