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Cao Y, Xing Y, Guan H, Ma C, Jia Q, Tian W, Li G, Tian Y, Kang X, Liu X, Li H. Genomic Insights into Molecular Regulation Mechanisms of Intramuscular Fat Deposition in Chicken. Genes (Basel) 2023; 14:2197. [PMID: 38137019 PMCID: PMC10742768 DOI: 10.3390/genes14122197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/07/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
Intramuscular fat (IMF) plays an important role in the tenderness, water-holding capacity, and flavor of chicken meat, which directly affect meat quality. In recent years, regulatory mechanisms underlying IMF deposition and the development of effective molecular markers have been hot topics in poultry genetic breeding. Therefore, this review focuses on the current understanding of regulatory mechanisms underlying IMF deposition in chickens, which were identified by multiple genomic approaches, including genome-wide association studies, whole transcriptome sequencing, proteome sequencing, single-cell RNA sequencing (scRNA-seq), high-throughput chromosome conformation capture (HiC), DNA methylation sequencing, and m6A methylation sequencing. This review comprehensively and systematically describes genetic and epigenetic factors associated with IMF deposition, which provides a fundamental resource for biomarkers of IMF deposition and provides promising applications for genetic improvement of meat quality in chicken.
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Affiliation(s)
- Yuzhu Cao
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (Y.C.); (Y.X.); (H.G.); (C.M.); (Q.J.); (W.T.); (G.L.); (Y.T.); (X.K.); (X.L.)
| | - Yuxin Xing
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (Y.C.); (Y.X.); (H.G.); (C.M.); (Q.J.); (W.T.); (G.L.); (Y.T.); (X.K.); (X.L.)
| | - Hongbo Guan
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (Y.C.); (Y.X.); (H.G.); (C.M.); (Q.J.); (W.T.); (G.L.); (Y.T.); (X.K.); (X.L.)
| | - Chenglin Ma
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (Y.C.); (Y.X.); (H.G.); (C.M.); (Q.J.); (W.T.); (G.L.); (Y.T.); (X.K.); (X.L.)
| | - Qihui Jia
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (Y.C.); (Y.X.); (H.G.); (C.M.); (Q.J.); (W.T.); (G.L.); (Y.T.); (X.K.); (X.L.)
| | - Weihua Tian
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (Y.C.); (Y.X.); (H.G.); (C.M.); (Q.J.); (W.T.); (G.L.); (Y.T.); (X.K.); (X.L.)
| | - Guoxi Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (Y.C.); (Y.X.); (H.G.); (C.M.); (Q.J.); (W.T.); (G.L.); (Y.T.); (X.K.); (X.L.)
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450046, China
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Yadong Tian
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (Y.C.); (Y.X.); (H.G.); (C.M.); (Q.J.); (W.T.); (G.L.); (Y.T.); (X.K.); (X.L.)
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450046, China
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Xiangtao Kang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (Y.C.); (Y.X.); (H.G.); (C.M.); (Q.J.); (W.T.); (G.L.); (Y.T.); (X.K.); (X.L.)
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450046, China
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Xiaojun Liu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (Y.C.); (Y.X.); (H.G.); (C.M.); (Q.J.); (W.T.); (G.L.); (Y.T.); (X.K.); (X.L.)
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450046, China
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Hong Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (Y.C.); (Y.X.); (H.G.); (C.M.); (Q.J.); (W.T.); (G.L.); (Y.T.); (X.K.); (X.L.)
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450046, China
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
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Kim JE, Bennett DC, Wright K, Cheng KM. Seasonal and sexual variation in mRNA expression of selected adipokine genes affecting fat deposition and metabolism of the emu (Dromaius novaehollandiae). Sci Rep 2022; 12:6325. [PMID: 35428830 PMCID: PMC9012844 DOI: 10.1038/s41598-022-10232-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 03/29/2022] [Indexed: 11/16/2022] Open
Abstract
Emus are farmed for fat production. Oil rendered from their back and abdominal fat pads has good anti-oxidant and anti-inflammatory properties and has ingredients that promote cell growth. Our objective is to examine the mRNA expression of 7 emu adipokine genes (eFABP4, eSCD1, eAdipoQ, eAdipoR1, eAdipoR2, eLEP and eLepR) to identify gene markers that may help improve emu fat production. Back and abdominal fat tissues from 11 adult emus were biopsied at four time points (April, June, August and November). Total RNA was isolated and cDNA was synthesized. Gene specific primers were designed for partial cloning fragments to amplify the open reading frame of the 7 genes. eLEP was not expressed in emu fat tissue. Nucleotides and amino acids sequences of the 6 expressed gene were compared with homologs from other species and phylogenetic relationships established. Seasonal mRNA expression of each gene was assessed by quantitative RT-PCR and differential expression analysed by the 2−ΔΔCT method. The 6 expressed genes showed seasonal variation in expression and showed association of expression level with back fat adiposity. More whole-genome scanning studies are needed to develop novel molecular markers that can be applied to improve fat production in emus.
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Affiliation(s)
- Ji Eun Kim
- Faculty of Land and Food Systems, Avian Research Centre, University of British Columbia, 2357 Main Mall, Vancouver, BC, V6T 1Z4, Canada
| | - Darin C Bennett
- Faculty of Land and Food Systems, Avian Research Centre, University of British Columbia, 2357 Main Mall, Vancouver, BC, V6T 1Z4, Canada.,Animal Science Department, California Polytechnic State University, San Luis Obispo, CA, 93407, USA
| | - Kristina Wright
- Canada's Michael Smith Genome Sciences Centre, BC Cancer Research Institute, 570 West 7th Avenue, Vancouver, BC, V5Z 4S6, Canada
| | - Kimberly M Cheng
- Faculty of Land and Food Systems, Avian Research Centre, University of British Columbia, 2357 Main Mall, Vancouver, BC, V6T 1Z4, Canada.
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Solé E, González-Prendes R, Oliinychenko Y, Tor M, Ros-Freixedes R, Estany J, Pena RN. Transcriptome shifts triggered by vitamin A and SCD genotype interaction in Duroc pigs. BMC Genomics 2022; 23:16. [PMID: 34991486 PMCID: PMC8739656 DOI: 10.1186/s12864-021-08244-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 12/08/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The composition of intramuscular fat depends on genetic and environmental factors, including the diet. In pigs, we identified a haplotype of three SNP mutations in the stearoyl-coA desaturase (SCD) gene promoter associated with higher content of monounsaturated fatty acids in intramuscular fat. The second of these three SNPs (rs80912566, C > T) affected a putative retinol response element in the SCD promoter. The effect of dietary vitamin A restriction over intramuscular fat content is controversial as it depends on the pig genetic line and the duration of the restriction. This study aims to investigate changes in the muscle transcriptome in SCD rs80912566 TT and CC pigs fed with and without a vitamin A supplement during the fattening period. RESULTS Vitamin A did not affect carcass traits or intramuscular fat content and fatty acid composition, but we observed an interaction between vitamin A and SCD genotype on the desaturation of fatty acids in muscle. As reported before, the SCD-TT pigs had more monounsaturated fat than the SCD-CC animals. The diet lacking the vitamin A supplement enlarged fatty acid compositional differences between SCD genotypes, partly because vitamin A had a bigger effect on fatty acid desaturation in SCD-CC pigs (positive) than in SCD-TT and SCD-TC animals (negative). The interaction between diet and genotype was also evident at the transcriptome level; the highest number of differentially expressed genes were detected between SCD-TT pigs fed with the two diets. The genes modulated by the diet with the vitamin A supplement belonged to metabolic and signalling pathways related to immunity and inflammation, transport through membrane-bounded vesicles, fat metabolism and transport, reflecting the impact of retinol on a wide range of metabolic processes. CONCLUSIONS Restricting dietary vitamin A during the fattening period did not improve intramuscular fat content despite relevant changes in muscle gene expression, both in coding and non-coding genes. Vitamin A activated general pathways of retinol response in a SCD genotype-dependant manner, which affected the monounsaturated fatty acid content, particularly in SCD-CC pigs.
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Affiliation(s)
- Emma Solé
- Departament de Ciència Animal, Universitat de Lleida - AGROTECNIO-CERCA Center, Av. Rovira Roure 191, 25197, Lleida, Spain
| | - Rayner González-Prendes
- Departament de Ciència Animal, Universitat de Lleida - AGROTECNIO-CERCA Center, Av. Rovira Roure 191, 25197, Lleida, Spain.,Animal Breeding and Genomics, Wageningen University & Research, 6708PB, Wageningen, The Netherlands
| | | | - Marc Tor
- Departament de Ciència Animal, Universitat de Lleida - AGROTECNIO-CERCA Center, Av. Rovira Roure 191, 25197, Lleida, Spain
| | - Roger Ros-Freixedes
- Departament de Ciència Animal, Universitat de Lleida - AGROTECNIO-CERCA Center, Av. Rovira Roure 191, 25197, Lleida, Spain
| | - Joan Estany
- Departament de Ciència Animal, Universitat de Lleida - AGROTECNIO-CERCA Center, Av. Rovira Roure 191, 25197, Lleida, Spain
| | - Ramona N Pena
- Departament de Ciència Animal, Universitat de Lleida - AGROTECNIO-CERCA Center, Av. Rovira Roure 191, 25197, Lleida, Spain.
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Cai J, Hu Q, Lin H, Zhao J, Jiao H, Wang X. Adiponectin/adiponectin receptors mRNA expression profiles in chickens and their response to feed restriction. Poult Sci 2021; 100:101480. [PMID: 34700095 PMCID: PMC8554277 DOI: 10.1016/j.psj.2021.101480] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/06/2021] [Accepted: 09/13/2021] [Indexed: 11/08/2022] Open
Abstract
Adiponectin (ADPN) is related to fatty acid synthesis and oxidation in mammals. In chickens, the lipid metabolism, structure and sequence of ADPN are different from that in mammals. The aim of this study was to determine the role of ADPN in broilers lipid metabolism by investigating the temporal and spatial expression profiles of ADPN and its receptors, as well as their response to feed restriction. The results showed that the abdominal fat has the highest expression level, followed by the duodenum, glandular stomach, heart, hypothalamus, liver, and skeletal muscle. Broilers have high energy mobilization during their early stage of growth, in which the fat demand in the liver and muscles is high, thus the expression of ADPN and its receptor are also increased. To study the effects of feed restriction on ADPN and lipid metabolism, broilers were fasted for 12 h and refeed for 2 h. The results showed that fasting decreased the concentration of triglyceride (TG) (P < 0.05) and total cholesterol (TCHO) (P < 0.05) in plasma. The mRNA expression of ADPN in the liver (P < 0.05), breast (P < 0.05) and thigh (P < 0.05), and the mRNA expression of ADPNR1 in the liver (P < 0.05) and duodenum (P < 0.05) were significantly increased in the Fasted group. All above phenomena were recovered after refeeding, suggesting that feed restriction may promote the utilization of fatty acids in active metabolism tissues through ADPN, to guarantee the energy homeostasis of the body. However, the AMP-activated protein kinase (AMPK) signaling pathway and hepatic lipid metabolism were not necessary to cause the above changes under this experimental condition.
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Affiliation(s)
- Jiangxue Cai
- Department of Animal Science & Technology, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, Shandong, 271018, P. R. China
| | - Qingmei Hu
- Department of Animal Science & Technology, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, Shandong, 271018, P. R. China
| | - Hai Lin
- Department of Animal Science & Technology, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, Shandong, 271018, P. R. China
| | - Jingpeng Zhao
- Department of Animal Science & Technology, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, Shandong, 271018, P. R. China
| | - Hongchao Jiao
- Department of Animal Science & Technology, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, Shandong, 271018, P. R. China
| | - Xiaojuan Wang
- Department of Animal Science & Technology, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, Shandong, 271018, P. R. China.
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Hassler EM, Deutschmann H, Almer G, Renner W, Mangge H, Herrmann M, Leber S, Michenthaler M, Staszewski A, Gunzer F, Partl R, Reishofer G. Distribution of subcutaneous and intermuscular fatty tissue of the mid-thigh measured by MRI-A putative indicator of serum adiponectin level and individual factors of cardio-metabolic risk. PLoS One 2021; 16:e0259952. [PMID: 34780545 DOI: 10.1371/journal.pone.0259952] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 10/29/2021] [Indexed: 12/25/2022] Open
Abstract
Obesity and metabolic syndrome (MetS) are associated with hypoadiponectinemia. On the contrary, studies revealed correlations between the amount of subcutaneous adipose tissue (SAT) and higher serum adiponectin levels. Furthermore, independent association of intermuscular adipose tissue (IMAT) deposit in the thigh with cardiometabolic risk factors (including total blood cholesterol, low-density lipoprotein (LDL), and triglycerides), and decreased insulin sensitivity, as MetS components, are sufficiently described. The combined relationship of thigh IMAT and SAT with serum adiponectin, leptin levels, and cardiometabolic risk factors have not been investigated till date. Since both SAT and IMAT play a role in fat metabolism, we hypothesized that the distribution pattern of SAT and IMAT in the mid-thigh might be related to adiponectin, leptin levels, and serum lipid parameters. We performed adipose tissue quantification using magnetic resonance imaging (MRI) of the mid-thigh in 156 healthy volunteers (78 male/78 female). Laboratory measurements of lipid panel, serum adiponectin, and leptin levels were conducted. Total serum adiponectin level showed a significant correlation with the percentage of SAT of the total thigh adipose tissue (SAT/ (IMAT+SAT)) for the whole study population and in sex-specific analysis. Additionally, SAT/(IMAT+SAT) was negatively correlated with known cardiometabolic risk factors such as elevated total blood cholesterol, LDL, and triglycerides; but positively correlated with serum high-density lipoprotein. In multiple linear regression analysis, (SAT/(IMAT+SAT)) was the most strongly associated variable with adiponectin. Interestingly, leptin levels did not show a significant correlation with this ratio. Adipose tissue distribution in the mid-thigh is not only associated to serum adiponectin levels, independent of sex. This proposed quantitative parameter for adipose tissue distribution could be an indicator for individual factors of a person`s cardiometabolic risk and serve as additional non-invasive imaging marker to ensure the success of lifestyle interventions.
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Li J, Yang C, Ren P, Lin Z, Zhang D, Jiang X, Wang L, Liu Y. Transcriptomics analysis of Daheng broilers reveals that PLIN2 regulates chicken preadipocyte proliferation, differentiation and apoptosis. Mol Biol Rep 2021; 48:7985-7997. [PMID: 34716501 DOI: 10.1007/s11033-021-06831-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/20/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Intramuscular fat content, an important meat quality trait, strongly affects flavor, juiciness, and tenderness. Sex hormones regulate lipid metabolism, and female hormones stimulate fat deposition, thereby making the female chickens always fatter than males. In this study, the effect of sex on IMF deposition was screened following transcriptomics in chickens. METHODS AND RESULTS Results confirmed significantly higher IMF content of 150-day female chickens as compared to the male chickens. The female chickens manifested higher serum TG, LDL-C, and VLDL, and significantly lower HDL-C contents than male chickens. Moreover, differential expression of genes involved in lipid metabolism were obtained in the muscle and liver between female and male chicken, which could partly interpret the possible reasons for the sex-mediated differences of IMF content. Cellular results revealed that inhibition of PLIN2 significantly inhibited chicken preadipocyte proliferation and induces apoptosis of preadipocytes, as well as promoted adipocyte differentiation. CONCLUSIONS According to our results, PLIN2 may be considered as a molecular marker for poultry meat quality and applying this gene in early breed selection.
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Affiliation(s)
- Jingjing Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu Campus, Chengdu, 611130, China
| | - Chaowu Yang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610066, Sichuan, China
| | - Peng Ren
- Faculty of Life Sciences, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Zhongzhen Lin
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu Campus, Chengdu, 611130, China
| | - Donghao Zhang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu Campus, Chengdu, 611130, China
| | - Xiaosong Jiang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, 610066, Sichuan, China
| | - Li Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu Campus, Chengdu, 611130, China
| | - Yiping Liu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu Campus, Chengdu, 611130, China.
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Bernardi O, Estienne A, Reverchon M, Bigot Y, Froment P, Dupont J. Adipokines in metabolic and reproductive functions in birds: An overview of current knowns and unknowns. Mol Cell Endocrinol 2021; 534:111370. [PMID: 34171419 DOI: 10.1016/j.mce.2021.111370] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 06/04/2021] [Accepted: 06/14/2021] [Indexed: 01/09/2023]
Abstract
Adipose tissue is now recognized as an active endocrine organ, which synthesizes and secretes numerous peptides factors called adipokines. In mammals, they exert pleiotropic effects affecting energy metabolism but also fertility. In mammals, secretion of adipokines is altered in adipose tissue dysfunctions and may participate to obesity-associated disorders. Thus, adipokines are promising candidates both for novel pharmacological treatment strategies and as diagnostic tools. As compared to mammals, birds exhibit several unique physiological features, which make them an interesting model for comparative studies on endocrine control of metabolism and adiposity and reproductive functions. Some adipokines such as leptin and visfatin may have different roles in avian species as compared to mammals. In addition, some of them found in mammals such as CCL2 (chemokine ligand 2), resistin, omentin and FGF21 (Fibroblast Growth factor 21) have not yet been mapped to the chicken genome model and among its annotated gene models. This brief review aims to summarize data (structure, metabolic and reproductive roles and molecular mechanisms involved) related to main avian adipokines (leptin, adiponectin, visfatin, and chemerin) and we will briefly discuss the adipokines that are still lacking in avian species.
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Affiliation(s)
- Ophélie Bernardi
- CNRS, IFCE, INRAE, Université de Tours, PRC, F-37380, Nouzilly, France; SYSAAF-Syndicat des Sélectionneurs Avicoles et Aquacoles Français, Centre INRA Val de Loire, F-37380, Nouzilly, France
| | - Anthony Estienne
- CNRS, IFCE, INRAE, Université de Tours, PRC, F-37380, Nouzilly, France
| | - Maxime Reverchon
- SYSAAF-Syndicat des Sélectionneurs Avicoles et Aquacoles Français, Centre INRA Val de Loire, F-37380, Nouzilly, France
| | - Yves Bigot
- CNRS, IFCE, INRAE, Université de Tours, PRC, F-37380, Nouzilly, France
| | - Pascal Froment
- CNRS, IFCE, INRAE, Université de Tours, PRC, F-37380, Nouzilly, France
| | - Joëlle Dupont
- CNRS, IFCE, INRAE, Université de Tours, PRC, F-37380, Nouzilly, France.
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Li J, Ma XJ, Wu X, Si SJ, Li C, Yang PK, Li GX, Liu XJ, Tian YD, Kang XT. Adiponectin modulates steroid hormone secretion, granulosa cell proliferation and apoptosis via binding its receptors during hens' high laying period. Poult Sci 2021; 100:101197. [PMID: 34089930 PMCID: PMC8182267 DOI: 10.1016/j.psj.2021.101197] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/31/2021] [Accepted: 04/05/2021] [Indexed: 01/23/2023] Open
Abstract
Adiponectin is an important adipocytokine and plays the roles in multiple metabolic processes via binding its receptors - AdipoR1 and AdipoR2, which has also been found to participate in the regulation of the reproductive system of animals, in particular by influencing the secretion of ovarian steroid hormones. To further investigate the expression of adiponectin and its receptors in follicles after in vitro incubation, and their role in the steroid synthesis of laying hens’ ovaries, we performed qRT-PCR and ELISA to detect the expressions of AdipoQ, AdipoR1, and AidpoR2, and determined the key genes involved in steroidogenesis and the secretion of estradiol (E2) and progesterone (P4) through the in vitro activation of adiponectin (AipoRon) and overexpression or knockdown of AdipoR1 and AdipoR2. Our results revealed that adiponectin and its receptors wildly exist in follicles and granulosa cells, and AdipoRon (5 and 10 µg/mL) had no effect on granulosa cell proliferation and apoptosis but significantly stimulated the secretion of adiponectin and its receptors in granulosa cells after incubation for 24 h. Furthermore, AdipoRon could significantly stimulate the secretion of P4 and inhibit E2 level compared to those of the control group through modulating the key genes expression of steroidogenesis (CYP19A1, StAR, CYP11A1, FSHR, and LHR). The secretion of E2 was also decreased in granulosa cells by the treatments of overexpression and knockdown of AdipoR1/2, however, there was no difference in terms of the level of P4 and StAR expression between them if there was overexpression or knockdown of AdipoR1/2. In addition, it was shown that the secretion of E2 only exhibits a marked drop if co-processing 10 µg/mL AdipoRon and pGMLV AdipoR2 compared to single treatments. Taken together, the study highlighted the role of adiponectin and its receptors in the regulation of steroid synthesis and secretion in ovarian granulosa cells in laying hens.
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Affiliation(s)
- Jing Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China; Henan Key laboratory for innovation and utilization of chicken germplasm resources, Zhengzhou, 450046, China
| | - Xue-Jie Ma
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China; Henan Key laboratory for innovation and utilization of chicken germplasm resources, Zhengzhou, 450046, China
| | - Xing Wu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China; Henan Key laboratory for innovation and utilization of chicken germplasm resources, Zhengzhou, 450046, China
| | - Su-Jin Si
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China; Henan Key laboratory for innovation and utilization of chicken germplasm resources, Zhengzhou, 450046, China
| | - Chong Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China; Henan Key laboratory for innovation and utilization of chicken germplasm resources, Zhengzhou, 450046, China
| | - Peng-Kun Yang
- Henan University of Animal Husbandry and Economy, Zhengzhou, 450046, China
| | - Guo-Xi Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China; Henan Key laboratory for innovation and utilization of chicken germplasm resources, Zhengzhou, 450046, China
| | - Xiao-Jun Liu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China; Henan Key laboratory for innovation and utilization of chicken germplasm resources, Zhengzhou, 450046, China
| | - Ya-Dong Tian
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China; Henan Key laboratory for innovation and utilization of chicken germplasm resources, Zhengzhou, 450046, China.
| | - Xiang-Tao Kang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China; Henan Key laboratory for innovation and utilization of chicken germplasm resources, Zhengzhou, 450046, China
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Bai Y, Yuan P, Zhang H, Ramachandran R, Yang N, Song J. Adiponectin and its receptor genes' expression in response to Marek's disease virus infection of White Leghorns. Poult Sci 2020; 99:4249-4258. [PMID: 32867969 PMCID: PMC7598011 DOI: 10.1016/j.psj.2020.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 05/26/2020] [Accepted: 06/03/2020] [Indexed: 11/28/2022] Open
Abstract
Marek’s disease virus (MDV) causes T-cell lymphoma in susceptible chicken and is also related to an imbalance of the lipid metabolism. Adiponectin is a circulatory cytokine secreted from adipose tissue and exerts critical metabolic functions. Although the associations between adiponectin and diseases, including lipid disorder and noncardiac vascular diseases, have been reported, little is known about the relationship between MDV infection and adiponectin. Here, we challenged white Leghorns from Marek’s disease (MD)-susceptible and MD-resistant lines with MDV at 7 D of age and then explored the body weight and plasma lipoprotein levels at 21 D after MDV infection. Meanwhile, adiponectin and the expression of its receptors were detected using quantitative real-time PCR and Western blot. The results showed that MDV infection induced body weight loss in all the experimental birds. Meanwhile, the concentrations of total cholesterol and high-density lipoprotein were lower after the infection, although there was no significant difference (P > 0.05). However, the infection did not affect adiponectin circulating levels in plasma. MD-susceptible birds had much lower plasma adiponectin than MD-resistant birds (P < 0.01). In abdominal fat, there was no significant difference in adiponectin mRNA level. Still, we observed a significant decrease in adiponectin protein concentration, as well as adipoR1 and adipoR2, at both mRNA and protein levels in the infected compared with the noninfected MD-susceptible chickens. In the spleen, MDV infection significantly reduced the adiponectin mRNA expression but increased the protein in MD-susceptible chickens, which decreased both adipoR1 mRNA expression and protein levels. Also interestingly, the adipoR1 mRNA expression level was significantly increased in MD-susceptible chickens in the liver after MDV infection. All findings in the present study provided interesting insights into adiponectin metabolism in chickens after MDV infection, which helps to advance the understanding of lipid metabolism in response to herpesvirus infection.
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Affiliation(s)
- Ying Bai
- College of Life Sciences and Food Engineering, Hebei University of Engineering, Handan, 056038 P.R. China
| | - Ping Yuan
- Department of Animal & Avian Sciences, University of Maryland, College Park, MD, 20742 USA
| | - Huanmin Zhang
- USDA, ARS, Avian Disease and Oncology Laboratory, East Lansing, MI, 48823 USA
| | - Ramesh Ramachandran
- Department of Animal Science, Pennsylvania State University, University Park, PA, 16802 USA
| | - Ning Yang
- Department of Animal Breeding and Genetics, College of Animal Sciences, China Agricultural, Beijing, 100193 P.R. China
| | - Jiuzhou Song
- Department of Animal & Avian Sciences, University of Maryland, College Park, MD, 20742 USA.
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10
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Estienne A, Brossaud A, Reverchon M, Ramé C, Froment P, Dupont J. Adipokines Expression and Effects in Oocyte Maturation, Fertilization and Early Embryo Development: Lessons from Mammals and Birds. Int J Mol Sci 2020; 21:E3581. [PMID: 32438614 PMCID: PMC7279299 DOI: 10.3390/ijms21103581] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/11/2020] [Accepted: 05/14/2020] [Indexed: 12/28/2022] Open
Abstract
Some evidence shows that body mass index in humans and extreme weights in animal models, including avian species, are associated with low in vitro fertilization, bad oocyte quality, and embryo development failures. Adipokines are hormones mainly produced and released by white adipose tissue. They play a key role in the regulation of energy metabolism. However, they are also involved in many other physiological processes including reproductive functions. Indeed, leptin and adiponectin, the most studied adipokines, but also novel adipokines including visfatin and chemerin, are expressed within the reproductive tract and modulate female fertility. Much of the literature has focused on the physiological and pathological roles of these adipokines in ovary, placenta, and uterine functions. The purpose of this review is to summarize the current knowledge regarding the involvement of leptin, adiponectin, visfatin, and chemerin in the oocyte maturation, fertilization, and embryo development in both mammals and birds.
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Affiliation(s)
- Anthony Estienne
- INRAE UMR 85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; (A.E.); (A.B.); (C.R.); (P.F.)
- CNRS UMR 7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Université François Rabelais de Tours, F-37041 Tours, France
- Institut Français du Cheval et de l’Equitation, Centre INRAE Val de Loire, F-37380 Nouzilly, France
| | - Adeline Brossaud
- INRAE UMR 85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; (A.E.); (A.B.); (C.R.); (P.F.)
- CNRS UMR 7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Université François Rabelais de Tours, F-37041 Tours, France
- Institut Français du Cheval et de l’Equitation, Centre INRAE Val de Loire, F-37380 Nouzilly, France
| | - Maxime Reverchon
- SYSAAF-Syndicat des Sélectionneurs Avicoles et Aquacoles Français, Centre INRAE Val de Loire, F-37380 Nouzilly, France;
| | - Christelle Ramé
- INRAE UMR 85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; (A.E.); (A.B.); (C.R.); (P.F.)
- CNRS UMR 7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Université François Rabelais de Tours, F-37041 Tours, France
- Institut Français du Cheval et de l’Equitation, Centre INRAE Val de Loire, F-37380 Nouzilly, France
| | - Pascal Froment
- INRAE UMR 85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; (A.E.); (A.B.); (C.R.); (P.F.)
- CNRS UMR 7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Université François Rabelais de Tours, F-37041 Tours, France
- Institut Français du Cheval et de l’Equitation, Centre INRAE Val de Loire, F-37380 Nouzilly, France
| | - Joëlle Dupont
- INRAE UMR 85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; (A.E.); (A.B.); (C.R.); (P.F.)
- CNRS UMR 7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Université François Rabelais de Tours, F-37041 Tours, France
- Institut Français du Cheval et de l’Equitation, Centre INRAE Val de Loire, F-37380 Nouzilly, France
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11
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Ge K, Chen X, Kuang J, Yang L, Geng Z. Comparison of liver transcriptome from high- and low-intramuscular fat Chaohu ducks provided additional candidate genes for lipid selection. 3 Biotech 2019; 9:251. [PMID: 31218175 DOI: 10.1007/s13205-019-1780-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 05/26/2019] [Indexed: 10/26/2022] Open
Abstract
The meat quality of ducks is closely related to the intramuscular fat (IMF) content. This study explored the candidate regulatory genes of IMF formation and lipid deposition in Chaohu ducks. The IMF of breast muscle in 100 ducks was determined and statistically analysed by normal distribution test. Duck liver samples with high IMF (CH, n = 3) and low IMF (CL, n = 3) were selected for transcriptome analysis by RNA sequencing (RNA-Seq). The IMF was in accordance with normal distribution (T = 0.001, P = 0.999). The IMF from two tails of the normal distribution was significantly different with 2.9983% ± 0.3296% in the CH group and 1.1960% ± 0.1481% in the CL group (P < 0.0001). RNA-Seq revealed 147 differentially expressed genes, including 78 up-regulated and 69 down-regulated genes in both groups. Validation by qRT-PCR was in agreement with RNA-Seq (R 2 = 0.838). Gene ontology analysis revealed that organophosphate catabolism, oxidation-reduction process, cellular lipid catabolism, lipid transport, lipid localisation, lipid biosynthesis and cellular lipid catabolism were involved in lipid metabolism. Meanwhile, Kyoto Encyclopedia of Genes and Genomes pathway analysis suggested that steroid hormone biosynthesis, ovarian steroidogenesis, alpha-linolenic acid metabolism, glycosylphosphatidylinositol anchor biosynthesis and linoleic acid metabolism were involved in lipid deposition, wherein the genes COMT, NT5E, PDE4D, PLA2G4F, A-FABP, ADRA2A, HSD17B2, PPP1R3C, PPP1R3B and NR0B2 were involved in lipid deposition. This study provided insights into the molecular mechanism for regulating lipid metabolism and identified candidate genes for selecting markers to control IMF formation in Chaohu ducks.
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12
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Abstract
The aim of this study was to clone KLF6 gene of Tibetan chicken, clarify its temporal-spatial expression characteristics, and build the correlation between the expression level of KLF6 gene and IMF content in different developmental stages. RT-PCR was used to clone Tibetan chicken KLF6 gene, qPCR was used to detect the expression level of KLF6 gene in different tissues and developmental stages. The sequence of KLF6 gene was 919 bp including a complete 852 bp CDS region. The gene was highest expression in lung tissues, which was significantly higher than in other tissues (p < 0.01). In male Tibetan chicken breast muscle the levels of KLF6 mRNA were negatively related to IMF content (r=-0.097, p > 0.05), while in females they were positively correlated (r = 0.077, p > 0.05). At the age of 119-210 days, the expression of KLF6 mRNA in the male chicken leg muscles was highly positively correlated (r = 0.506, p < 0.01), but negatively correlated in the female chicken leg muscles (r=-0.198, p > 0.05). The expression level of KLF6 in breast muscle decreased gradually with the increasing age, while in leg muscle the expression level increased firstly and then descended with the increasing age.
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Affiliation(s)
- Yongdong Chi
- College of Life Science and Technology, Southwest Minzu University, Chengdu, China.,Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Southwest Minzu University, Chengdu, China
| | - Yaou Xu
- College of Life Science and Technology, Southwest Minzu University, Chengdu, China.,Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Southwest Minzu University, Chengdu, China
| | - Fan Luo
- College of Life Science and Technology, Southwest Minzu University, Chengdu, China.,Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Southwest Minzu University, Chengdu, China
| | - Yaqiu Lin
- College of Life Science and Technology, Southwest Minzu University, Chengdu, China.,Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Southwest Minzu University, Chengdu, China
| | - Zhixiong Li
- College of Life Science and Technology, Southwest Minzu University, Chengdu, China.,Key Laboratory of Sichuan Province for Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation, Southwest Minzu University, Chengdu, China
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13
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Qin Y, Zhang Y, Luo H, Wu L. Association of three SNPs in adiponectin gene with lipid traits of Tianzhu Black Muscovy (Cairina moschata). Mol Biol Rep 2019; 46:325-32. [DOI: 10.1007/s11033-018-4475-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 11/07/2018] [Indexed: 02/06/2023]
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14
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Zhang R, Li R, Feng Q, Zhi L, Li Z, Xu YO, Lin Y. Expression profiles and associations of FGF1 and FGF10 with intramuscular fat in Tibetan chicken. Br Poult Sci 2018; 59:613-617. [PMID: 30259763 DOI: 10.1080/00071668.2018.1507018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- R. Zhang
- College of Life Sciences, Hubei Normal University, Huangshi, China
| | - R. Li
- Reproductive and Endocrine Laboratory, Chengdu Woman-Child Central Hospital, Chengdu, China
| | - Q. Feng
- Department of Otorhinolaryngology Head and Neck Surgery, Hospital of Guangxi Medical University, Nanning, China
| | - L. Zhi
- College of Life Sciences, Hubei Normal University, Huangshi, China
| | - Z. Li
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, China
| | - Y.-O. Xu
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, China
| | - Y. Lin
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, China
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15
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Mellouk N, Ramé C, Delaveau J, Rat C, Maurer E, Froment P, Dupont J. Adipokines expression profile in liver, adipose tissue and muscle during chicken embryo development. Gen Comp Endocrinol 2018; 267:146-156. [PMID: 29953882 DOI: 10.1016/j.ygcen.2018.06.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 05/31/2018] [Accepted: 06/23/2018] [Indexed: 12/18/2022]
Abstract
In broiler chickens, the intense genetic selection for rapid growth has resulted in an increase in growth rate and fat deposition. Adipose tissue is now recognized as an important endocrine organ that secretes a variety of factors including adipokines. However, the expression pattern of these adipokines is unclear in chicken embryo development. In the present study, we determined the expression profile of three novel adipokines, NAMPT, RARRES2 and ADIPOQ, and their cognate receptors in metabolic tissues (liver, muscles and adipose tissue) of chicken embryo/chicks from 15 days of incubation (E15) to hatching (D0). From E15 to hatching, embryos gradually gained weight and started to develop subcutaneous adipose tissue at E15. We conducted western blot and RT-qPCR tests and found that ADIPOQ expression increased over time and was positively correlated with adipose tissue weight. In addition, NAMPT expression increased only in muscles. By using a new homemade chicken RARRES2 specific antibody we showed that RARRES2 protein levels increased specifically at hatching in adipose tissue, liver and pectoralis major and this was associated with an increase in the weight of embryo. Taken together, these results support a potential involvement of adipokines in metabolic regulation during chicken embryo development.
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Affiliation(s)
- Namya Mellouk
- INRA UMR85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; CNRS, UMR7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; Université François Rabelais de Tours, F-37041 Tours, France; IFCE F, 37380 Nouzilly, France
| | - Christelle Ramé
- INRA UMR85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; CNRS, UMR7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; Université François Rabelais de Tours, F-37041 Tours, France; IFCE F, 37380 Nouzilly, France
| | - Joël Delaveau
- INRA - Unité Expérimentale du Pôle d'Expérimentation Avicole de Tours, UEPEAT 1295, F-37380 Nouzilly, France
| | - Christophe Rat
- INRA - Unité Expérimentale du Pôle d'Expérimentation Avicole de Tours, UEPEAT 1295, F-37380 Nouzilly, France
| | - Eric Maurer
- Agro-Bio, 2 Allée de la Chavannerie, 45240 La Ferté Saint Aubin, France
| | - Pascal Froment
- INRA UMR85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; CNRS, UMR7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; Université François Rabelais de Tours, F-37041 Tours, France; IFCE F, 37380 Nouzilly, France
| | - Joëlle Dupont
- INRA UMR85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; CNRS, UMR7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France; Université François Rabelais de Tours, F-37041 Tours, France; IFCE F, 37380 Nouzilly, France.
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16
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Mellouk N, Ramé C, Barbe A, Grandhaye J, Froment P, Dupont J. Chicken Is a Useful Model to Investigate the Role of Adipokines in Metabolic and Reproductive Diseases. Int J Endocrinol 2018; 2018:4579734. [PMID: 30018639 PMCID: PMC6029501 DOI: 10.1155/2018/4579734] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 05/16/2018] [Indexed: 01/04/2023] Open
Abstract
Reproduction is a complex and essential physiological process required by all species to produce a new generation. This process involves strict hormonal regulation, depending on a connection between the hypothalamus-pituitary-gonadal axis and peripheral organs. Metabolic homeostasis influences the reproductive functions, and its alteration leads to disturbances in the reproductive functions of humans as well as animals. For a long time, adipose tissue has been recognised as an endocrine organ but its ability to secrete and release hormones called adipokines is now emerging. Adipokines have been found to play a major role in the regulation of metabolic and reproductive processes at both central and peripheral levels. Leptin was initially the first adipokine that has been described to be the most involved in the metabolism/reproduction interrelation in mammals. In avian species, the role of leptin is still under debate. Recently, three novel adipokines have been discovered: adiponectin (ADIPOQ, ACRP30), visfatin (NAMPT, PBEF), and chemerin (RARRES2, TIG2). However, their mode of action between mammalian and nonmammalian species is different due to the different reproductive and metabolic systems. Herein, we will provide an overview of the structure and function related to metabolic and reproductive mechanisms of the latter three adipokines with emphasis on avian species.
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Affiliation(s)
- Namya Mellouk
- INRA, UMR 85 Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France
| | - Christelle Ramé
- INRA, UMR 85 Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France
| | - Alix Barbe
- INRA, UMR 85 Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France
| | - Jérémy Grandhaye
- INRA, UMR 85 Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France
| | - Pascal Froment
- INRA, UMR 85 Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France
| | - Joëlle Dupont
- INRA, UMR 85 Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France
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