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Energy Expenditure Homeostasis Requires ErbB4, an Obesity Risk Gene, in the Paraventricular Nucleus

Obesity affects more than a third adult population in the United States; the prevalence is even higher in patients with major depression disorders. GWAS studies identify the receptor tyrosine kinase ErbB4 as a risk gene for obesity and for major depression disorders. We found that ErbB4 was enriched...

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Autores principales: Santiago-Marrero, Ivan, Liu, Fang, Wang, Hongsheng, Arzola, Emily P., Xiong, Wen-Cheng, Mei, Lin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Society for Neuroscience 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10521346/
https://www.ncbi.nlm.nih.gov/pubmed/37669858
http://dx.doi.org/10.1523/ENEURO.0139-23.2023
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author Santiago-Marrero, Ivan
Liu, Fang
Wang, Hongsheng
Arzola, Emily P.
Xiong, Wen-Cheng
Mei, Lin
author_facet Santiago-Marrero, Ivan
Liu, Fang
Wang, Hongsheng
Arzola, Emily P.
Xiong, Wen-Cheng
Mei, Lin
author_sort Santiago-Marrero, Ivan
collection PubMed
description Obesity affects more than a third adult population in the United States; the prevalence is even higher in patients with major depression disorders. GWAS studies identify the receptor tyrosine kinase ErbB4 as a risk gene for obesity and for major depression disorders. We found that ErbB4 was enriched in the paraventricular nucleus of the hypothalamus (PVH). To investigate its role in metabolism, we deleted ErbB4 by injecting a Cre-expressing virus into the PVH of ErbB4-floxed male mice and found that PVH ErbB4 deletion increased weight gain without altering food intake. ErbB4 PVH deletion also reduced nighttime activity and decreased intrascapular brown adipose tissue (iBAT) thermogenesis. Analysis of covariance (ANCOVA) revealed that ErbB4 PVH deletion reduced O(2) consumption, CO(2) production and heat generation in a manner independent of body weight. Immunostaining experiments show that ErbB4+ neurons in the PVH were positive for oxytocin (OXT); ErbB4 PVH deletion reduces serum levels of OXT. We characterized mice where ErbB4 was specifically mutated in OXT+ neurons and found reduction in energy expenditure, phenotypes similar to PVH ErbB4 deletion. Taken together, our data indicate that ErbB4 in the PVH regulates metabolism likely through regulation of OXT expressing neurons, reveal a novel function of ErbB4 and provide insight into pathophysiological mechanisms of depression-associated obesity.
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spelling pubmed-105213462023-09-27 Energy Expenditure Homeostasis Requires ErbB4, an Obesity Risk Gene, in the Paraventricular Nucleus Santiago-Marrero, Ivan Liu, Fang Wang, Hongsheng Arzola, Emily P. Xiong, Wen-Cheng Mei, Lin eNeuro Research Article: New Research Obesity affects more than a third adult population in the United States; the prevalence is even higher in patients with major depression disorders. GWAS studies identify the receptor tyrosine kinase ErbB4 as a risk gene for obesity and for major depression disorders. We found that ErbB4 was enriched in the paraventricular nucleus of the hypothalamus (PVH). To investigate its role in metabolism, we deleted ErbB4 by injecting a Cre-expressing virus into the PVH of ErbB4-floxed male mice and found that PVH ErbB4 deletion increased weight gain without altering food intake. ErbB4 PVH deletion also reduced nighttime activity and decreased intrascapular brown adipose tissue (iBAT) thermogenesis. Analysis of covariance (ANCOVA) revealed that ErbB4 PVH deletion reduced O(2) consumption, CO(2) production and heat generation in a manner independent of body weight. Immunostaining experiments show that ErbB4+ neurons in the PVH were positive for oxytocin (OXT); ErbB4 PVH deletion reduces serum levels of OXT. We characterized mice where ErbB4 was specifically mutated in OXT+ neurons and found reduction in energy expenditure, phenotypes similar to PVH ErbB4 deletion. Taken together, our data indicate that ErbB4 in the PVH regulates metabolism likely through regulation of OXT expressing neurons, reveal a novel function of ErbB4 and provide insight into pathophysiological mechanisms of depression-associated obesity. Society for Neuroscience 2023-09-25 /pmc/articles/PMC10521346/ /pubmed/37669858 http://dx.doi.org/10.1523/ENEURO.0139-23.2023 Text en Copyright © 2023 Santiago-Marrero et al. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed.
spellingShingle Research Article: New Research
Santiago-Marrero, Ivan
Liu, Fang
Wang, Hongsheng
Arzola, Emily P.
Xiong, Wen-Cheng
Mei, Lin
Energy Expenditure Homeostasis Requires ErbB4, an Obesity Risk Gene, in the Paraventricular Nucleus
title Energy Expenditure Homeostasis Requires ErbB4, an Obesity Risk Gene, in the Paraventricular Nucleus
title_full Energy Expenditure Homeostasis Requires ErbB4, an Obesity Risk Gene, in the Paraventricular Nucleus
title_fullStr Energy Expenditure Homeostasis Requires ErbB4, an Obesity Risk Gene, in the Paraventricular Nucleus
title_full_unstemmed Energy Expenditure Homeostasis Requires ErbB4, an Obesity Risk Gene, in the Paraventricular Nucleus
title_short Energy Expenditure Homeostasis Requires ErbB4, an Obesity Risk Gene, in the Paraventricular Nucleus
title_sort energy expenditure homeostasis requires erbb4, an obesity risk gene, in the paraventricular nucleus
topic Research Article: New Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10521346/
https://www.ncbi.nlm.nih.gov/pubmed/37669858
http://dx.doi.org/10.1523/ENEURO.0139-23.2023
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