Role of Hypothalamic Transforming Growth Factor-β (TGF-β)/Smad Signaling in Feeding Regulation in Chickens

Previous studies in mammalian obesity models have suggested that central transforming growth factor-β (TGF-β) controls the gene expression of appetite-regulating neuropeptides and peripheral energy metabolism. In the present study, we investigated the possible involvement of central TGF-β/Smad signa...

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Main Authors: Takaoki Saneyasu, Miku Ueda, Kanami Nagata, Jiawei Chai, Kazuhisa Honda, Hiroshi Kamisoyama
Format: Article
Language:English
Published: Japan Poultry Science Association 2022-10-01
Series:The Journal of Poultry Science
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/jpsa/59/4/59_0220040/_article/-char/en
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author Takaoki Saneyasu
Miku Ueda
Kanami Nagata
Jiawei Chai
Kazuhisa Honda
Hiroshi Kamisoyama
author_facet Takaoki Saneyasu
Miku Ueda
Kanami Nagata
Jiawei Chai
Kazuhisa Honda
Hiroshi Kamisoyama
author_sort Takaoki Saneyasu
collection DOAJ
description Previous studies in mammalian obesity models have suggested that central transforming growth factor-β (TGF-β) controls the gene expression of appetite-regulating neuropeptides and peripheral energy metabolism. In the present study, we investigated the possible involvement of central TGF-β/Smad signaling in feeding regulation in chickens. Central administration of TGF-β1 resulted in phosphorylation of Smad2 in the hypothalamus of chicks and suppressed feed intake without changing the gene expression of hypothalamic appetite-regulating neuropeptides (neuropeptide Y, agouti-related protein, proopiomelanocortin, and corticotropin-releasing factor). However, neither fasting nor refeeding induced the phosphorylation of hypothalamic Smad2. These findings suggest that the activation of hypothalamic TGF-β/Smad signaling suppresses feed intake in chicks but it might not occur in response to feeding status.
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spelling doaj.art-93f8ae48b1134ed299edf9529580a9ba2023-05-29T07:11:12ZengJapan Poultry Science AssociationThe Journal of Poultry Science1349-04862022-10-01594357363https://doi.org/10.2141/jpsa.0220040Role of Hypothalamic Transforming Growth Factor-β (TGF-β)/Smad Signaling in Feeding Regulation in ChickensTakaoki Saneyasu0Miku Ueda1Kanami Nagata2Jiawei Chai3Kazuhisa Honda4Hiroshi Kamisoyama5Graduate School of Agricultural Science, Kobe UniversityGraduate School of Agricultural Science, Kobe UniversityGraduate School of Agricultural Science, Kobe UniversityGraduate School of Agricultural Science, Kobe UniversityGraduate School of Agricultural Science, Kobe UniversityGraduate School of Agricultural Science, Kobe UniversityPrevious studies in mammalian obesity models have suggested that central transforming growth factor-β (TGF-β) controls the gene expression of appetite-regulating neuropeptides and peripheral energy metabolism. In the present study, we investigated the possible involvement of central TGF-β/Smad signaling in feeding regulation in chickens. Central administration of TGF-β1 resulted in phosphorylation of Smad2 in the hypothalamus of chicks and suppressed feed intake without changing the gene expression of hypothalamic appetite-regulating neuropeptides (neuropeptide Y, agouti-related protein, proopiomelanocortin, and corticotropin-releasing factor). However, neither fasting nor refeeding induced the phosphorylation of hypothalamic Smad2. These findings suggest that the activation of hypothalamic TGF-β/Smad signaling suppresses feed intake in chicks but it might not occur in response to feeding status.https://www.jstage.jst.go.jp/article/jpsa/59/4/59_0220040/_article/-char/enchickensfood intakehypothalamussmadtransforming growth factor-β
spellingShingle Takaoki Saneyasu
Miku Ueda
Kanami Nagata
Jiawei Chai
Kazuhisa Honda
Hiroshi Kamisoyama
Role of Hypothalamic Transforming Growth Factor-β (TGF-β)/Smad Signaling in Feeding Regulation in Chickens
The Journal of Poultry Science
chickens
food intake
hypothalamus
smad
transforming growth factor-β
title Role of Hypothalamic Transforming Growth Factor-β (TGF-β)/Smad Signaling in Feeding Regulation in Chickens
title_full Role of Hypothalamic Transforming Growth Factor-β (TGF-β)/Smad Signaling in Feeding Regulation in Chickens
title_fullStr Role of Hypothalamic Transforming Growth Factor-β (TGF-β)/Smad Signaling in Feeding Regulation in Chickens
title_full_unstemmed Role of Hypothalamic Transforming Growth Factor-β (TGF-β)/Smad Signaling in Feeding Regulation in Chickens
title_short Role of Hypothalamic Transforming Growth Factor-β (TGF-β)/Smad Signaling in Feeding Regulation in Chickens
title_sort role of hypothalamic transforming growth factor β tgf β smad signaling in feeding regulation in chickens
topic chickens
food intake
hypothalamus
smad
transforming growth factor-β
url https://www.jstage.jst.go.jp/article/jpsa/59/4/59_0220040/_article/-char/en
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AT jiaweichai roleofhypothalamictransforminggrowthfactorbtgfbsmadsignalinginfeedingregulationinchickens
AT kazuhisahonda roleofhypothalamictransforminggrowthfactorbtgfbsmadsignalinginfeedingregulationinchickens
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