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Tang N, Li Y, Li Y, Xu S, Wang M, Wang B, Liu Y, Zhang S, Wu H, Zhang X, Zhou B, Li Z. Motilin, a Novel Orexigenic Factor, Involved in Feeding Regulation in Yangtze Sturgeon ( Acipenser dabryanus). Biomolecules 2024; 14:433. [PMID: 38672450 PMCID: PMC11048545 DOI: 10.3390/biom14040433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/19/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
Motilin is a gastrointestinal hormone that is mainly produced in the duodenum of mammals, and it is responsible for regulating appetite. However, the role and expression of motilin are poorly understood during starvation and the weaning stage, which is of great importance in the seeding cultivation of fish. In this study, the sequences of Yangtze sturgeon (Acipenser dabryanus Motilin (AdMotilin)) motilin receptor (AdMotilinR) were cloned and characterized. The results of tissue expression showed that by contrast with mammals, AdMotilin mRNA was richly expressed in the brain, whereas AdMotilinR was highly expressed in the stomach, duodenum, and brain. Weaning from a natural diet of T. Limnodrilus to commercial feed significantly promoted the expression of AdMotilin in the brain during the period from day 1 to day 10, and after re-feeding with T. Limnodrilus the change in expression of AdMotilin was partially reversed. Similarly, it was revealed that fasting increased the expression of AdMotilin in the brain (3 h, 6 h) and duodenum (3 h), and the expression of AdMotilinR in the brain (1 h) in a time-dependent manner. Furthermore, it was observed that peripheral injection of motilin-NH2 increased food intake and the filling index of the digestive tract in the Yangtze sturgeon, which was accompanied by the changes of AdMotilinR and appetite factors expression in the brain (POMC, CART, AGRP, NPY and CCK) and stomach (CCK). These results indicate that motilin acts as an indicator of nutritional status, and also serves as a novel orexigenic factor that stimulates food intake in Acipenser dabryanus. This study lays a strong foundation for the application of motilin as a biomarker in the estimation of hunger in juvenile Acipenser dabryanu during the weaning phase, and enhances the understanding of the role of motilin as a novel regulator of feeding in fish.
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Affiliation(s)
- Ni Tang
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (N.T.); (Y.L.); (Y.L.); (S.X.); (M.W.); (Y.L.); (S.Z.); (H.W.); (X.Z.)
| | - Ya Li
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (N.T.); (Y.L.); (Y.L.); (S.X.); (M.W.); (Y.L.); (S.Z.); (H.W.); (X.Z.)
| | - Yingzi Li
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (N.T.); (Y.L.); (Y.L.); (S.X.); (M.W.); (Y.L.); (S.Z.); (H.W.); (X.Z.)
| | - Shaoqi Xu
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (N.T.); (Y.L.); (Y.L.); (S.X.); (M.W.); (Y.L.); (S.Z.); (H.W.); (X.Z.)
| | - Mei Wang
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (N.T.); (Y.L.); (Y.L.); (S.X.); (M.W.); (Y.L.); (S.Z.); (H.W.); (X.Z.)
| | - Bin Wang
- Fisheries Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China;
| | - Yanling Liu
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (N.T.); (Y.L.); (Y.L.); (S.X.); (M.W.); (Y.L.); (S.Z.); (H.W.); (X.Z.)
| | - Shupeng Zhang
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (N.T.); (Y.L.); (Y.L.); (S.X.); (M.W.); (Y.L.); (S.Z.); (H.W.); (X.Z.)
| | - Hongwei Wu
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (N.T.); (Y.L.); (Y.L.); (S.X.); (M.W.); (Y.L.); (S.Z.); (H.W.); (X.Z.)
| | - Xin Zhang
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (N.T.); (Y.L.); (Y.L.); (S.X.); (M.W.); (Y.L.); (S.Z.); (H.W.); (X.Z.)
| | - Bo Zhou
- Fisheries Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China;
| | - Zhiqiong Li
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (N.T.); (Y.L.); (Y.L.); (S.X.); (M.W.); (Y.L.); (S.Z.); (H.W.); (X.Z.)
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Song YT, Liu TT, Feng L, Zhang T, Xiang HB. Melanocortin-4 receptor expression in the cuneiform nucleus is involved in modulation of opioidergic signaling. ACTA ACUST UNITED AC 2015; 35:662-665. [DOI: 10.1007/s11596-015-1486-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 06/15/2015] [Indexed: 11/29/2022]
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Bodnar RJ. Endogenous opioids and feeding behavior: A decade of further progress (2004-2014). A Festschrift to Dr. Abba Kastin. Peptides 2015; 72:20-33. [PMID: 25843025 DOI: 10.1016/j.peptides.2015.03.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 03/23/2015] [Accepted: 03/25/2015] [Indexed: 12/13/2022]
Abstract
Functional elucidation of the endogenous opioid system temporally paralleled the creation and growth of the journal, Peptides, under the leadership of its founding editor, Dr. Abba Kastin. He was prescient in publishing annual and uninterrupted reviews on Endogenous Opiates and Behavior that served as a microcosm for the journal under his stewardship. This author published a 2004 review, "Endogenous opioids and feeding behavior: a thirty-year historical perspective", summarizing research in this field between 1974 and 2003. The present review "closes the circle" by reviewing the last 10 years (2004-2014) of research examining the role of endogenous opioids and feeding behavior. The review summarizes effects upon ingestive behavior following administration of opioid receptor agonists, in opioid receptor knockout animals, following administration of general opioid receptor antagonists, following administration of selective mu, delta, kappa and ORL-1 receptor antagonists, and evaluating opioid peptide and opioid receptor changes in different food intake models.
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Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Behavioral and Cognitive Neuroscience Doctoral Program Cluster, Queens College, City University of New York, Flushing, NY 11367, United States.
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Abstract
This paper is the thirty-fourth consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2011 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior (Section 2), and the roles of these opioid peptides and receptors in pain and analgesia (Section 3); stress and social status (Section 4); tolerance and dependence (Section 5); learning and memory (Section 6); eating and drinking (Section 7); alcohol and drugs of abuse (Section 8); sexual activity and hormones, pregnancy, development and endocrinology (Section 9); mental illness and mood (Section 10); seizures and neurologic disorders (Section 11); electrical-related activity and neurophysiology (Section 12); general activity and locomotion (Section 13); gastrointestinal, renal and hepatic functions (Section 14); cardiovascular responses (Section 15); respiration (Section 16); and immunological responses (Section 17).
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Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, Flushing, NY 11367, United States.
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Davoli R, Braglia S, Valastro V, Annaratone C, Comella M, Zambonelli P, Nisi I, Gallo M, Buttazzoni L, Russo V. Analysis of MC4R polymorphism in Italian Large White and Italian Duroc pigs: association with carcass traits. Meat Sci 2011; 90:887-92. [PMID: 22197097 DOI: 10.1016/j.meatsci.2011.11.025] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Revised: 10/28/2011] [Accepted: 11/08/2011] [Indexed: 11/18/2022]
Abstract
The melanocortin-4 receptor (MC4R) gene codes for a G protein transmembrane receptor playing an important role in energy homeostasis control. In pig a single nucleotide polymorphism c.1426G>A has been identified and associated to average daily gain, feed intake and fatness traits but a lack of agreement on the effects of the gene on carcass traits in different breeds comes out from many studies. In the present study the c.1426G>A polymorphism is analysed in two Italian pig breeds, Large White and Duroc to study the association of the MC4R gene with some carcass traits. The results show that the c.1426G>A polymorphism affects daily gain, feed conversion ratio and ham weight in both breeds, lean cuts in the Italian Duroc and backfat thickness in the Italian Large White. The presence of MC4R mRNA transcript in different porcine tissues was analysed.
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Affiliation(s)
- R Davoli
- Department of Agri-food Protection and Valorisation (DIPROVAL), Faculty of Agriculture, University of Bologna, Reggio Emilia, Italy.
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