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Bersin TV, Cordova KL, Saenger EK, Journey ML, Beckman BR, Lema SC. Nutritional status affects Igf1 regulation of skeletal muscle myogenesis, myostatin, and myofibrillar protein degradation pathways in gopher rockfish (Sebastes carnatus). Mol Cell Endocrinol 2023; 573:111951. [PMID: 37169322 DOI: 10.1016/j.mce.2023.111951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 05/05/2023] [Accepted: 05/09/2023] [Indexed: 05/13/2023]
Abstract
Insulin-like growth factor-1 (Igf1) regulates skeletal muscle growth in fishes by increasing protein synthesis and promoting muscle hypertrophy. When fish experience periods of insufficient food intake, they undergo slower muscle growth or even muscle wasting, and those changes emerge in part from nutritional modulation of Igf1 signaling. Here, we examined how food deprivation (fasting) modulates Igf1 regulation of liver and skeletal muscle gene expression in gopher rockfish (Sebastes carnatus), a nearshore rockfish of importance for commercial and recreational fisheries in the northeastern Pacific Ocean, to understand how food limitation impacts Igf regulation of muscle growth pathways. Rockfish were either fed or fasted for 14 d, after which a subset of fish from each group was treated with recombinant Igf1 from sea bream (Sparus aurata). Fish that were fasted lost body mass and had lower body condition, reduced hepatosomatic index, and lower plasma Igf1 concentrations, as well as a decreased abundance of igf1 gene transcripts in the liver, increased hepatic mRNAs for Igf binding proteins igfbp1a, igfbp1b, and igfbp3a, and decreased mRNA abundances for igfbp2b and a putative Igf acid labile subunit (igfals) gene. In skeletal muscle, fasted fish showed a reduced abundance of intramuscular igf1 mRNAs but elevated gene transcripts encoding Igf1 receptors A (igf1ra) and B (igf1rb), which also showed downregulation by Igf1. Fasting increased skeletal muscle mRNAs for myogenin and myostatin1, as well as ubiquitin ligase F-box only protein 32 (fbxo32) and muscle RING-finger protein-1 (murf1) genes involved in muscle atrophy, while concurrently downregulating mRNAs for myoblast determination protein 2 (myod2), myostatin2, and myogenic factors 5 (myf5) and 6 (myf6 encoding Mrf4). Treatment with Igf1 downregulated muscle myostatin1 and fbxo32 under both feeding conditions, but showed feeding-dependent effects on murf1, myf5, and myf6/Mrf4 gene expression indicating that Igf1 effects on muscle growth and atrophy pathways is contingent on recent food consumption experience.
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Affiliation(s)
- Theresa V Bersin
- Biological Sciences Department, Center for Coastal Marine Sciences, California Polytechnic State University, San Luis Obispo, CA, 93407, USA
| | - Kasey L Cordova
- Biological Sciences Department, Center for Coastal Marine Sciences, California Polytechnic State University, San Luis Obispo, CA, 93407, USA
| | - E Kate Saenger
- Biological Sciences Department, Center for Coastal Marine Sciences, California Polytechnic State University, San Luis Obispo, CA, 93407, USA
| | - Meredith L Journey
- Lynker Technology, 202 Church St SE #536, Leesburg, VA, 20175, USA; Under Contract to Environmental and Fisheries Sciences Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, 98112, USA
| | - Brian R Beckman
- Environmental and Fisheries Sciences Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, 98112, USA
| | - Sean C Lema
- Biological Sciences Department, Center for Coastal Marine Sciences, California Polytechnic State University, San Luis Obispo, CA, 93407, USA.
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An Integrated Bioinformatics Approach to Identify Network-Derived Hub Genes in Starving Zebrafish. Animals (Basel) 2022; 12:ani12192724. [PMID: 36230465 PMCID: PMC9559487 DOI: 10.3390/ani12192724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/24/2022] [Accepted: 10/04/2022] [Indexed: 11/17/2022] Open
Abstract
The present study was aimed at identifying causative hub genes within modules formed by co-expression and protein-protein interaction (PPI) networks, followed by Bayesian network (BN) construction in the liver transcriptome of starved zebrafish. To this end, the GSE11107 and GSE112272 datasets from the GEO databases were downloaded and meta-analyzed using the MetaDE package, an add-on R package. Differentially expressed genes (DEGs) were identified based upon expression intensity N(µ = 0.2, σ2 = 0.4). Reconstruction of BNs was performed by the bnlearn R package on genes within modules using STRINGdb and CEMiTool. ndufs5 (shared among PPI, BN and COEX), rps26, rpl10, sdhc (shared between PPI and BN), ndufa6, ndufa10, ndufb8 (shared between PPI and COEX), skp1, atp5h, ndufb10, rpl5b, zgc:193613, zgc:123327, zgc:123178, wu:fc58f10, zgc:111986, wu:fc37b12, taldo1, wu:fb62f08, zgc:64133 and acp5a (shared between COEX and BN) were identified as causative hub genes affecting gene expression in the liver of starving zebrafish. Future work will shed light on using integrative analyses of miRNA and DNA microarrays simultaneously, and performing in silico and experimental validation of these hub-causative (CST) genes affecting starvation in zebrafish.
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Tóth Z, Mahr K, Ölveczki G, Őri L, Lendvai ÁZ. Food Restriction Reveals Individual Differences in Insulin-Like Growth Factor-1 Reaction Norms. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.826968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Most organisms have to cope with unpredictable environmental challenges such as fluctuations in nutritional resources. Insulin-like growth factor-1 (IGF-1) is an evolutionarily conserved hormone that is highly sensitive to the individual nutritional status and regulates major life-history traits including lifespan and reproduction across vertebrates. We investigated the role of IGF-1 during periods of food shortages by altering between two feeding regimes (110 and 70% of daily food intake) after a period of ad libitum feeding in captive bearded reedlings (Panurus biarmicus). Each dietary treatment was repeated twice. Birds lost mass under food restriction, but the magnitude of mass change depended on the preceding dietary conditions. Moreover, bearded reedlings showed large, repeatable individual differences in their IGF-1 reaction norms with some individuals increasing IGF-1 levels in response to a restricted diet, whereas others showed no responses or decreased IGF-1 levels. This variation was explained by differences in average body mass: heavier individuals had higher IGF-1 levels during the control treatment and were more likely to decrease IGF-1 levels in response to the dietary restriction than did lighter ones. This result uncovers an individual by environment interaction (I × E) and may have important implications for the evolution of IGF-1 related hormonal phenotypes in this species.
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Zhang F, Teng Z, Wang L, Wang L, Huang T, Zhang X. Dietary Selenium Deficiency and Excess Accelerate Ubiquitin-Mediated Protein Degradation in the Muscle of Rainbow Trout (Oncorhynchus mykiss) via Akt/FoxO3a and NF-κB Signaling Pathways. Biol Trace Elem Res 2022; 200:1361-1375. [PMID: 33928590 DOI: 10.1007/s12011-021-02726-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 04/15/2021] [Indexed: 12/18/2022]
Abstract
Selenium (Se) deficiency and excess can lead to protein degradation in fish. However, the underlying mechanisms remain unclear. Ubiquitin proteasome system (UPS) is the main pathway of muscle proteolysis. This study aimed to investigate the effect and molecular mechanism of dietary Se on ubiquitin-mediated muscle protein degradation in rainbow trout (Oncorhynchus mykiss). The fish were fed with the Se-deficient diet (0 mg/kg, DSe), Se-adequate diet (4 mg/kg, ASe), and Se-excessive diet (16 mg/kg, ESe), respectively. After a 10-week feeding trial, the growth performance, body composition, antioxidant enzyme activities, and UPS-related gene and protein expressions were detected. Results indicated that DSe and ESe diets significantly decreased the weight gain rate, specific growth rate, feed efficiency, and muscle crude protein content compared with ASe diet. The histological analysis showed that the mean diameter of muscle fibers was significantly decreased in DSe and ESe groups. And DSe and ESe diets significantly increased the contents of malondialdehyde and nitric oxide, but reduced the glutathione peroxidase activity. Additionally, the abundance of muscle ubiquitinated proteins and the expression levels of MuRF1 and Atrogin-1 were significantly increased in DSe and ESe groups. Compared to ASe diet, DSe and ESe diets significantly decreased the phosphorylation level of Akt Ser473 and the ratio of p-FoxO3a/FoxO3a, but significantly increased the phosphorylation level of IκBα and upregulated the expressions of TNF-α, IL-8, and NF-κB. Overall, this study indicated that dietary Se deficiency and excess accelerated the ubiquitin-mediated muscle protein degradation through regulating Akt/FoxO3a and NF-κB signaling pathways in rainbow trout.
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Affiliation(s)
- Feng Zhang
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Shizishan street 1, Wuhan, 430070, People's Republic of China
| | - Zhenlei Teng
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Shizishan street 1, Wuhan, 430070, People's Republic of China
| | - Li Wang
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Shizishan street 1, Wuhan, 430070, People's Republic of China
| | - Long Wang
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Shizishan street 1, Wuhan, 430070, People's Republic of China
| | - Taotao Huang
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Shizishan street 1, Wuhan, 430070, People's Republic of China
| | - Xuezhen Zhang
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Shizishan street 1, Wuhan, 430070, People's Republic of China.
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5
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Hu B, Zhou J, Qiu H, Lai X, Li J, Wu D, Sheng J, Hong Y. Comparison of nutritional quality and volatile flavor compounds among bighead carp from three aquaculture systems. Saudi J Biol Sci 2021; 28:4291-4299. [PMID: 34354411 PMCID: PMC8325028 DOI: 10.1016/j.sjbs.2021.03.079] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/29/2021] [Accepted: 03/31/2021] [Indexed: 11/11/2022] Open
Abstract
To explore the differences in the nutritional quality of the muscles of bighead carp from different environments and aquaculture systems, we investigated three types of water bodies typically used for aquaculture: A common culture pond (NC), a natural lake (PY), and a cold water reservoir (XHK). Parameters affecting quality were evaluated, including muscle microstructure, fatty acid profiles, amino acid profiles, and volatile compounds. Fish from the XHK reservoir had the smallest muscle fiber diameter and the highest muscle fiber density (25.3 fibers/0.01 mm2), while muscle fiber density was lowest in fish from the NC pond (9.7 fibers/0.01 mm2). The bighead carp from the XHK reservoir had a much wider variety of unsaturated fatty acids, as well as higher levels of total polyunsaturated fatty acids. Eicosapentaenoic acid (EPA), docosahexenoic acid (DHA), and arachidonic acid (AA) were all significantly more abundant in the XHK group, increases of 7.48%, 12.12%, and 17.49%, respectively (P < 0.05). The bighead carp from NC contained more “fishy” volatile flavor substances, as well as hydrocarbons with higher threshold values. Fish from XHK and NC had a greater umami intensity due to the presence of abundant volatiles with special aromas, including 1-Octene-3ol, DL-Menthol, and 2-ethyl-.
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Affiliation(s)
- Beijuan Hu
- School of Life Science, Nanchang University, Nanchang 330031, China.,Jiangxi Province Key Laboratory of Aquatic Animal Resources and Utilization, Nanchang University, Nanchang 330031, China
| | - Jie Zhou
- School of Life Science, Nanchang University, Nanchang 330031, China
| | - Huimin Qiu
- School of Life Science, Nanchang University, Nanchang 330031, China
| | - Xinxin Lai
- School of Life Science, Nanchang University, Nanchang 330031, China
| | - Jing Li
- School of Life Science, Nanchang University, Nanchang 330031, China
| | - Di Wu
- School of Life Science, Nanchang University, Nanchang 330031, China.,Jiangxi Province Key Laboratory of Aquatic Animal Resources and Utilization, Nanchang University, Nanchang 330031, China
| | - Junqing Sheng
- School of Life Science, Nanchang University, Nanchang 330031, China.,Jiangxi Province Key Laboratory of Aquatic Animal Resources and Utilization, Nanchang University, Nanchang 330031, China
| | - Yijiang Hong
- School of Life Science, Nanchang University, Nanchang 330031, China.,Jiangxi Province Key Laboratory of Aquatic Animal Resources and Utilization, Nanchang University, Nanchang 330031, China
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Zanella BTT, Magiore IC, Duran BOS, Pereira GG, Vicente IST, Carvalho PLPF, Salomão RAS, Mareco EA, Carvalho RF, de Paula TG, Barros MM, Dal-Pai-Silva M. Ascorbic Acid Supplementation Improves Skeletal Muscle Growth in Pacu ( Piaractus mesopotamicus) Juveniles: In Vivo and In Vitro Studies. Int J Mol Sci 2021; 22:2995. [PMID: 33804272 PMCID: PMC7998472 DOI: 10.3390/ijms22062995] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 03/11/2021] [Accepted: 03/12/2021] [Indexed: 02/06/2023] Open
Abstract
In fish, fasting leads to loss of muscle mass. This condition triggers oxidative stress, and therefore, antioxidants can be an alternative to muscle recovery. We investigated the effects of antioxidant ascorbic acid (AA) on the morphology, antioxidant enzyme activity, and gene expression in the skeletal muscle of pacu (Piaractus mesopotamicus) following fasting, using in vitro and in vivo strategies. Isolated muscle cells of the pacu were subjected to 72 h of nutrient restriction, followed by 24 h of incubation with nutrients or nutrients and AA (200 µM). Fish were fasted for 15 days, followed by 6 h and 15 and 30 days of refeeding with 100, 200, and 400 mg/kg of AA supplementation. AA addition increased cell diameter and the expression of anabolic and cell proliferation genes in vitro. In vivo, 400 mg/kg of AA increased anabolic and proliferative genes expression at 6 h of refeeding, the fiber diameter and the expression of genes related to cell proliferation at 15 days, and the expression of catabolic and oxidative metabolism genes at 30 days. Catalase activity remained low in the higher supplementation group. In conclusion, AA directly affected the isolated muscle cells, and the higher AA supplementation positively influenced muscle growth after fasting.
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Affiliation(s)
- Bruna Tereza Thomazini Zanella
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, UNESP, Botucatu 18618-689, São Paulo, Brazil; (B.T.T.Z.); (I.C.M.); (G.G.P.); (R.F.C.); (T.G.d.P.)
| | - Isabele Cristina Magiore
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, UNESP, Botucatu 18618-689, São Paulo, Brazil; (B.T.T.Z.); (I.C.M.); (G.G.P.); (R.F.C.); (T.G.d.P.)
| | - Bruno Oliveira Silva Duran
- Department of Histology, Embryology and Cell Biology, Institute of Biological Sciences, Federal University of Goiás (UFG), Goiânia 74690-900, Goiás, Brazil;
| | - Guilherme Gutierrez Pereira
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, UNESP, Botucatu 18618-689, São Paulo, Brazil; (B.T.T.Z.); (I.C.M.); (G.G.P.); (R.F.C.); (T.G.d.P.)
| | - Igor Simões Tiagua Vicente
- Department of Breeding and Animal Nutrition, School of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu 18618-681, São Paulo, Brazil; (I.S.T.V.); (P.L.P.F.C.); (M.M.B.)
| | - Pedro Luiz Pucci Figueiredo Carvalho
- Department of Breeding and Animal Nutrition, School of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu 18618-681, São Paulo, Brazil; (I.S.T.V.); (P.L.P.F.C.); (M.M.B.)
| | - Rondinelle Artur Simões Salomão
- Environment and Regional Development Graduate Program, University of Western São Paulo, Presidente Prudente 19050-680, São Paulo, Brazil; (R.A.S.S.); (E.A.M.)
| | - Edson Assunção Mareco
- Environment and Regional Development Graduate Program, University of Western São Paulo, Presidente Prudente 19050-680, São Paulo, Brazil; (R.A.S.S.); (E.A.M.)
| | - Robson Francisco Carvalho
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, UNESP, Botucatu 18618-689, São Paulo, Brazil; (B.T.T.Z.); (I.C.M.); (G.G.P.); (R.F.C.); (T.G.d.P.)
| | - Tassiana Gutierrez de Paula
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, UNESP, Botucatu 18618-689, São Paulo, Brazil; (B.T.T.Z.); (I.C.M.); (G.G.P.); (R.F.C.); (T.G.d.P.)
| | - Margarida Maria Barros
- Department of Breeding and Animal Nutrition, School of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu 18618-681, São Paulo, Brazil; (I.S.T.V.); (P.L.P.F.C.); (M.M.B.)
| | - Maeli Dal-Pai-Silva
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, UNESP, Botucatu 18618-689, São Paulo, Brazil; (B.T.T.Z.); (I.C.M.); (G.G.P.); (R.F.C.); (T.G.d.P.)
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Zhu S, Portman M, Cleveland BM, Magnuson AD, Wu K, Sealey W, Lei XG. Replacing fish oil and astaxanthin by microalgal sources produced different metabolic responses in juvenile rainbow trout fed 2 types of practical diets. J Anim Sci 2021; 99:skaa403. [PMID: 33515472 PMCID: PMC8355477 DOI: 10.1093/jas/skaa403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 12/17/2020] [Indexed: 12/16/2022] Open
Abstract
Dietary fish oil supplementation provides n-3 long-chained polyunsaturated fatty acids for supporting fish growth and metabolism and enriching fillet with eicosapentaenoic acid (EPA; 20:5n-3) and docosahexaenoic acid (DHA; c22:6n-3). Two experiments were performed as a 3 × 2 factorial arrangement of dietary treatments for 16 wk to determine effects and mechanisms of replacing 0%, 50%, and 100% fish oil with DHA-rich microalgae in combination with synthetic vs. microalgal source of astaxanthin in plant protein meal (PM)- or fishmeal (FM)- based diets for juvenile rainbow trout (Oncorhynchus mykiss). Fish (22 ± 0.26 g) were stocked at 17/tank and 3 tanks/diet. The 100% fish oil replacement impaired (P < 0.0001) growth performance, dietary protein and energy utilization, body indices, and tissue accumulation of DHA and EPA in both diet series. The impairments were associated (P < 0.05) with upregulation of hepatic gene expression related to growth (ghr1and igf1) and biosynthesis of DHA and EPA (fads6 and evol5) that was more dramatic in the FM than PM diet-fed fish, and more pronounced on tissue EPA than DHA concentrations. The source of astaxanthin exerted interaction effects with the fish oil replacement on several measures including muscle total cholesterol concentrations. In conclusion, replacing fish oil by the DHA-rich microalgae produced more negative metabolic responses than the substitution of synthetic astaxanthin by the microalgal source in juvenile rainbow trout fed 2 types of practical diets.
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Affiliation(s)
- Shanli Zhu
- Department of Animal Science, Cornell University, Ithaca, NY
- College of Agriculture, Jinhua Polytechnic, Jinhua, China
| | - Mark Portman
- Bozeman Fish Technology Center, U.S. Fish and Wildlife Service, Bozeman, MT
| | - Beth M Cleveland
- USDA, ARS National Center for Cool and Cold Water Research, Kearneysville, WV
| | | | - Kun Wu
- Department of Animal Science, Cornell University, Ithaca, NY
| | - Wendy Sealey
- Bozeman Fish Technology Center, U.S. Fish and Wildlife Service, Bozeman, MT
| | - Xin Gen Lei
- Department of Animal Science, Cornell University, Ithaca, NY
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Cleveland BM, Habara S, Oikawa J, Radler LM, Shimizu M. Compensatory Response of the Somatotropic Axis from IGFBP-2b Gene Editing in Rainbow Trout ( Oncorhynchus mykiss). Genes (Basel) 2020; 11:genes11121488. [PMID: 33322039 PMCID: PMC7763687 DOI: 10.3390/genes11121488] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 11/29/2020] [Accepted: 12/04/2020] [Indexed: 11/16/2022] Open
Abstract
Rainbow trout with gene editing-induced reductions in serum insulin-like growth factor binding protein (IGFBP)-2b exhibit similar growth performance compared to fish without IGFBP-2b gene disruption. The objective of this study is to determine how the components of the insulin-like growth factor (IGF)/IGFBP system respond to a reduction in serum IGFBP-2b abundance. Editing the IGFBP-2b genes in rainbow trout resulted in an 83% decrease in serum IGFBP-2b in mutants. This resulted in a 35% reduction in serum IGF-I, which was offset by reduced expression of hepatic igfbp-1a2 and increased muscle igfr-1a; these responses suggest that an increased IGF-I signaling capacity offset reductions in serum IGF-I. During feed deprivation, the differential expression of igfbp genes supports the attenuation of the growth inhibitory response, likely due to the further reduction in serum IGF-I that alleviated the need for an IGF-inhibitory response. Unique igfbp expression patterns occurred during refeeding, suggesting an enhanced IGF-I signaling capacity in controls. Collectively, these findings support that the role of IGFBP-2b is to regulate serum IGF-I concentrations. The compensatory regulation of IGF/IGFBP system genes indicates that adjustments in other IGFBP, both circulating and at the local level, maintain IGF-I signaling at a level appropriate for the nutritional state of the fish.
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Affiliation(s)
- Beth M. Cleveland
- National Center for Cool and Cold Water Aquaculture, United States Department of Agriculture/Agricultural Research Service, Leetown, WV 25430, USA;
- Correspondence: ; Tel.: +1304-724-8340 (ext. 2133)
| | - Shiori Habara
- Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0808, Japan; (S.H.); (J.O.)
| | - Jin Oikawa
- Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0808, Japan; (S.H.); (J.O.)
| | - Lisa M. Radler
- National Center for Cool and Cold Water Aquaculture, United States Department of Agriculture/Agricultural Research Service, Leetown, WV 25430, USA;
| | - Munetaka Shimizu
- Faculty of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Japan;
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9
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Peris-Moreno D, Taillandier D, Polge C. MuRF1/TRIM63, Master Regulator of Muscle Mass. Int J Mol Sci 2020; 21:ijms21186663. [PMID: 32933049 PMCID: PMC7555135 DOI: 10.3390/ijms21186663] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/04/2020] [Accepted: 09/08/2020] [Indexed: 02/07/2023] Open
Abstract
The E3 ubiquitin ligase MuRF1/TRIM63 was identified 20 years ago and suspected to play important roles during skeletal muscle atrophy. Since then, numerous studies have been conducted to decipher the roles, molecular mechanisms and regulation of this enzyme. This revealed that MuRF1 is an important player in the skeletal muscle atrophy process occurring during catabolic states, making MuRF1 a prime candidate for pharmacological treatments against muscle wasting. Indeed, muscle wasting is an associated event of several diseases (e.g., cancer, sepsis, diabetes, renal failure, etc.) and negatively impacts the prognosis of patients, which has stimulated the search for MuRF1 inhibitory molecules. However, studies on MuRF1 cardiac functions revealed that MuRF1 is also cardioprotective, revealing a yin and yang role of MuRF1, being detrimental in skeletal muscle and beneficial in the heart. This review discusses data obtained on MuRF1, both in skeletal and cardiac muscles, over the past 20 years, regarding the structure, the regulation, the location and the different functions identified, and the first inhibitors reported, and aim to draw the picture of what is known about MuRF1. The review also discusses important MuRF1 characteristics to consider for the design of future drugs to maintain skeletal muscle mass in patients with different pathologies.
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10
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Strobel JS, Hack NL, Label KT, Cordova KL, Bersin TV, Journey ML, Beckman BR, Lema SC. Effects of food deprivation on plasma insulin-like growth factor-1 (Igf1) and Igf binding protein (Igfbp) gene transcription in juvenile cabezon (Scorpaenichthys marmoratus). Gen Comp Endocrinol 2020; 286:113319. [PMID: 31715138 DOI: 10.1016/j.ygcen.2019.113319] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/25/2019] [Accepted: 11/08/2019] [Indexed: 12/25/2022]
Abstract
The growth hormone (GH)/insulin-like growth factor (Igf) endocrine axis regulates somatic growth in the face of changing environmental conditions. In actinopterygian fishes, food availability is a key modulator of the somatotropic axis, with lower food intake generally depressing liver Igf1 release to diminish growth. Igf1 signaling, however, also involves several distinct IGF binding proteins (Igfbps), and the functional roles of many of these Igfbps in affecting growth during shifting food availability remain uncertain. Here, we tested how complete food deprivation (fasting) affected gene transcription for paralogs of all six types of Igfbps in the liver and fast-twitch skeletal muscle of cabezon (Scorpaenichthys marmoratus), a nearshore marine fish important for recreational fisheries in the eastern North Pacific Ocean. Juvenile cabezon were maintained as either fed (6% mass food⋅g fish wet mass-1⋅d-1) or fasted for 14 d. Fasted fish exhibited a lower body condition (K), a depressed mass-specific growth rate (SGR), and reduced plasma concentrations of Igf1. In the liver, fasting reduced the relative abundance of gene transcripts encoding Igfbps igfbp2a and igfbp2b, while significantly elevating mRNA levels for igfbp1a, igfbp1b, igfbp3b, and igfbp4. Fasting also reduced hepatic mRNA levels of GH receptor-1 (ghr1) - but not GH receptor-2 (ghr2) - supporting the idea that changes in liver sensitivity to GH may underlie the decline in plasma Igf1 during food deprivation. In skeletal muscle, fasting downregulated gene transcripts encoding igf1, igfbp2b, igfbp5b, and igfbp6b, while also upregulating mRNAs for igf2 and ghr2. These data demonstrate isoform-specific regulation of Igfbps in liver and skeletal muscle in cabezon experiencing food deprivation and reinforce the idea that the repertoire of duplicated Igfbp genes that evolved in actinopterygian fishes supports a diverse scope of endocrine and paracrine functions.
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Affiliation(s)
- Jackson S Strobel
- Biological Sciences Department, Center for Coastal Marine Sciences, California Polytechnic State University, San Luis Obispo, CA 93407, USA
| | - Nicole L Hack
- Biological Sciences Department, Center for Coastal Marine Sciences, California Polytechnic State University, San Luis Obispo, CA 93407, USA
| | - Kevin T Label
- Biological Sciences Department, Center for Coastal Marine Sciences, California Polytechnic State University, San Luis Obispo, CA 93407, USA
| | - Kasey L Cordova
- Biological Sciences Department, Center for Coastal Marine Sciences, California Polytechnic State University, San Luis Obispo, CA 93407, USA
| | - Theresa V Bersin
- Biological Sciences Department, Center for Coastal Marine Sciences, California Polytechnic State University, San Luis Obispo, CA 93407, USA
| | - Meredith L Journey
- Lynker Technology, 202 Church St SE #536, Leesburg, VA 20175, Under Contract to Environmental and Fisheries Sciences Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle Washington 98112, USA
| | - Brian R Beckman
- Environmental and Fisheries Sciences Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, Washington 98112, USA
| | - Sean C Lema
- Biological Sciences Department, Center for Coastal Marine Sciences, California Polytechnic State University, San Luis Obispo, CA 93407, USA.
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11
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Bertucci JI, Blanco AM, Sundarrajan L, Rajeswari JJ, Velasco C, Unniappan S. Nutrient Regulation of Endocrine Factors Influencing Feeding and Growth in Fish. Front Endocrinol (Lausanne) 2019; 10:83. [PMID: 30873115 PMCID: PMC6403160 DOI: 10.3389/fendo.2019.00083] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 01/30/2019] [Indexed: 12/31/2022] Open
Abstract
Endocrine factors regulate food intake and growth, two interlinked physiological processes critical for the proper development of organisms. Somatic growth is mainly regulated by growth hormone (GH) and insulin-like growth factors I and II (IGF-I and IGF-II) that act on target tissues, including muscle, and bones. Peptidyl hormones produced from the brain and peripheral tissues regulate feeding to meet metabolic demands. The GH-IGF system and hormones regulating appetite are regulated by both internal (indicating the metabolic status of the organism) and external (environmental) signals. Among the external signals, the most notable are diet availability and diet composition. Macronutrients and micronutrients act on several hormone-producing tissues to regulate the synthesis and secretion of appetite-regulating hormones and hormones of the GH-IGF system, eventually modulating growth and food intake. A comprehensive understanding of how nutrients regulate hormones is essential to design diet formulations that better modulate endogenous factors for the benefit of aquaculture to increase yield. This review will discuss the current knowledge on nutritional regulation of hormones modulating growth and food intake in fish.
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Affiliation(s)
- Juan Ignacio Bertucci
- Laboratory of Integrative Neuroendocrinology, Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, SK, Canada
| | - Ayelén Melisa Blanco
- Laboratory of Integrative Neuroendocrinology, Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, SK, Canada
- Laboratorio de Fisioloxìa Animal, Departamento de Bioloxía Funcional e Ciencias da Saúde, Facultade de Bioloxía and Centro de Investigación Mariña, Universidade de Vigo, Vigo, Spain
| | - Lakshminarasimhan Sundarrajan
- Laboratory of Integrative Neuroendocrinology, Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, SK, Canada
| | - Jithine Jayakumar Rajeswari
- Laboratory of Integrative Neuroendocrinology, Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, SK, Canada
| | - Cristina Velasco
- Laboratory of Integrative Neuroendocrinology, Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, SK, Canada
- Laboratorio de Fisioloxìa Animal, Departamento de Bioloxía Funcional e Ciencias da Saúde, Facultade de Bioloxía and Centro de Investigación Mariña, Universidade de Vigo, Vigo, Spain
| | - Suraj Unniappan
- Laboratory of Integrative Neuroendocrinology, Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, SK, Canada
- *Correspondence: Suraj Unniappan
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Gao K, Wang Z, Zhou X, Wang H, Kong D, Jiang C, Wang X, Jiang Z, Qiu X. Comparative transcriptome analysis of fast twitch muscle and slow twitch muscle in Takifugu rubripes. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2017; 24:79-88. [PMID: 28886574 DOI: 10.1016/j.cbd.2017.08.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Revised: 08/21/2017] [Accepted: 08/22/2017] [Indexed: 12/26/2022]
Abstract
Fast twitch muscle and slow twitch muscle are two important organs of Takifugu rubripes. Both tissues are of ectodermic origin, and the differences between the two muscle fibers reflect the differences in their myofibril protein composition and molecular structure. In order to identify and characterize the gene expression profile in the two muscle fibers of T. rubripes, we generated 54 million and 44 million clean reads from the fast twitch muscle and slow twitch muscle, respectively, using RNA-Seq and identified a total of 580 fast-muscle-specific genes, 1533 slow-muscle-specific genes and 11,806 genes expressed by both muscles. Comparative transcriptome analysis of fast and slow twitch muscles allowed the identification of 1508 differentially expressed genes, of which 34 myosin and 30 ubiquitin family genes were determined. These differentially expressed genes (DEGs) were also analyzed by Ontology (GO) analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway. In addition, alternative splicing analysis was also performed. The generation of larger-scale transcriptomic data presented in this work would enrich the genetic resources of Takifugu rubripes, which could be valuable to comparative studies of muscles.
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Affiliation(s)
- Kailun Gao
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Zhicheng Wang
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Xiaoxu Zhou
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Haoze Wang
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Derong Kong
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Chen Jiang
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Xiuli Wang
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Zhiqiang Jiang
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Xuemei Qiu
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China.
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13
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Cassidy AA, Saulnier RJ, Lamarre SG. Adjustments of Protein Metabolism in Fasting Arctic Charr, Salvelinus alpinus. PLoS One 2016; 11:e0153364. [PMID: 27096948 PMCID: PMC4838323 DOI: 10.1371/journal.pone.0153364] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 03/29/2016] [Indexed: 11/18/2022] Open
Abstract
Protein metabolism, including the interrelated processes of synthesis and degradation, mediates the growth of an animal. In ectothermic animals, protein metabolism is responsive to changes in both biotic and abiotic conditions. This study aimed to characterise responses of protein metabolism to food deprivation that occur in the coldwater salmonid, Arctic charr, Salvelinus alpinus. We compared two groups of Arctic charr: one fed continuously and the other deprived of food for 36 days. We measured the fractional rate of protein synthesis (KS) in individuals from the fed and fasted groups using a flooding dose technique modified for the use of deuterium-labelled phenylalanine. The enzyme activities of the three major protein degradation pathways (ubiquitin proteasome, lysosomal cathepsins and the calpain systems) were measured in the same fish. This study is the first to measure both KS and the enzymatic activity of protein degradation in the same fish, allowing us to examine the apparent contribution of different protein degradation pathways to protein turnover in various tissues (red and white muscle, liver, heart and gills). KS was lower in the white muscle and in liver of the fasted fish compared to the fed fish. There were no observable effects of food deprivation on the protease activities in any of the tissues with the exception of liver, where the ubiquitin proteasome pathway seemed to be activated during fasting conditions. Lysosomal proteolysis appears to be the primary degradation pathway for muscle protein, while the ubiquitin proteasome pathway seems to predominate in the liver. We speculate that Arctic charr regulate protein metabolism during food deprivation to conserve proteins.
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Affiliation(s)
| | | | - Simon G. Lamarre
- Département de biologie, Université de Moncton, Moncton, NB, Canada
- * E-mail:
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Abernathy J, Panserat S, Welker T, Plagne-Juan E, Sakhrani D, Higgs DA, Audouin F, Devlin RH, Overturf K. Food Shortage Causes Differential Effects on Body Composition and Tissue-Specific Gene Expression in Salmon Modified for Increased Growth Hormone Production. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2015; 17:753-767. [PMID: 26265485 DOI: 10.1007/s10126-015-9654-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 06/19/2015] [Indexed: 06/04/2023]
Abstract
Growth hormone (GH) transgenic salmon possesses markedly increased metabolic rate, appetite, and feed conversion efficiency, as well as an increased ability to compete for food resources. Thus, the ability of GH-transgenic fish to withstand periods of food deprivation as occurs in nature is potentially different than that of nontransgenic fish. However, the physiological and genetic effects of transgenic GH production over long periods of food deprivation remain largely unknown. Here, GH-transgenic coho salmon (Oncorhynchus kisutch) and nontransgenic, wild-type coho salmon were subjected to a 3-month food deprivation trial, during which time performance characteristics related to growth were measured along with proximate compositions. To examine potential genetic effects of GH-transgenesis on long-term food deprivation, a group of genes related to muscle development and liver metabolism was selected for quantitative PCR analysis. Results showed that GH-transgenic fish lose weight at an increased rate compared to wild-type even though proximate compositions remained relatively similar between the groups. A total of nine genes related to muscle physiology (cathepsin, cee, insulin-like growth factor, myostatin, murf-1, myosin, myogenin, proteasome delta, tumor necrosis factor) and five genes related to liver metabolism (carnitine palmitoyltransferase, fatty acid synthase, glucose-6-phosphatase, glucose-6-phosphate dehydrogenase, glucokinase) were shown to be differentially regulated between GH-transgenic and wild-type coho salmon over time. These genetic and physiological responses assist in identifying differences between GH-transgenic and wild-type salmon in relation to fitness effects arising from elevated growth hormone during periods of long-term food shortage.
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Affiliation(s)
- Jason Abernathy
- USDA-ARS, Hagerman Fish Culture Experiment Station, 3059F National Fish Hatchery Road, Hagerman, ID, 83332, USA
| | - Stéphane Panserat
- INRA, UR1067 Nutrition Metabolism Aquaculture, F-64310, Saint-Pée-sur-Nivelle, France
| | - Thomas Welker
- USDA-ARS, Hagerman Fish Culture Experiment Station, 3059F National Fish Hatchery Road, Hagerman, ID, 83332, USA
| | - Elisabeth Plagne-Juan
- INRA, UR1067 Nutrition Metabolism Aquaculture, F-64310, Saint-Pée-sur-Nivelle, France
| | - Dionne Sakhrani
- Fisheries and Oceans Canada, 4160 Marine Drive, West Vancouver, BC, Canada, V7V 1N6
| | - David A Higgs
- Fisheries and Oceans Canada, 4160 Marine Drive, West Vancouver, BC, Canada, V7V 1N6
| | - Florence Audouin
- Fisheries and Oceans Canada, 4160 Marine Drive, West Vancouver, BC, Canada, V7V 1N6
| | - Robert H Devlin
- Fisheries and Oceans Canada, 4160 Marine Drive, West Vancouver, BC, Canada, V7V 1N6
| | - Ken Overturf
- USDA-ARS, Hagerman Fish Culture Experiment Station, 3059F National Fish Hatchery Road, Hagerman, ID, 83332, USA.
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Mareco EA, Garcia de la Serrana D, Johnston IA, Dal-Pai-Silva M. Characterization of the transcriptome of fast and slow muscle myotomal fibres in the pacu (Piaractus mesopotamicus). BMC Genomics 2015; 16:182. [PMID: 25886905 PMCID: PMC4372171 DOI: 10.1186/s12864-015-1423-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 02/28/2015] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The Pacu (Piaractus mesopotamicus) is a member of the Characiform family native to the Prata Basin (South America) and a target for the aquaculture industry. A limitation for the development of a selective breeding program for this species is a lack of available genetic information. The primary objectives of the present study were 1) to increase the genetic resources available for the species, 2) to exploit the anatomical separation of myotomal fibres types to compare the transcriptomes of slow and fast muscle phenotypes and 3) to systematically investigate the expression of Ubiquitin Specific Protease (USP) family members in fast and slow muscle in response to fasting and refeeding. RESULTS We generated 0.6 Tb of pair-end reads from slow and fast skeletal muscle libraries. Over 665 million reads were assembled into 504,065 contigs with an average length of 1,334 bp and N50 = 2,772 bp. We successfully annotated nearly 47% of the transcriptome and identified around 15,000 unique genes and over 8000 complete coding sequences. 319 KEGG metabolic pathways were also annotated and 380 putative microsatellites were identified. 956 and 604 genes were differentially expressed between slow and fast skeletal muscle, respectively. 442 paralogues pairs arising from the teleost-specific whole genome duplication were identified, with the majority showing different expression patterns between fibres types (301 in slow and 245 in fast skeletal muscle). 45 members of the USP family were identified in the transcriptome. Transcript levels were quantified by qPCR in a separate fasting and refeeding experiment. USP genes in fast muscle showed a similar transient increase in expression with fasting as the better characterized E3 ubiquitin ligases. CONCLUSION We have generated a 53-fold coverage transcriptome for fast and slow myotomal muscle in the pacu (Piaractus mesopotamicus) significantly increasing the genetic resources available for this important aquaculture species. We describe significant differences in gene expression between muscle fibre types for fundamental components of general metabolism, the Pi3k/Akt/mTor network and myogenesis, including detailed analysis of paralogue expression. We also provide a comprehensive description of USP family member expression between muscle fibre types and with changing nutritional status.
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Affiliation(s)
- Edson A Mareco
- Institute of Biosciences of Botucatu, São Paulo State University - UNESP, Botucatu, 18618-970, São Paulo, Brazil. .,School of Biology, Scottish Oceans Institute, University of St Andrews, St Andrews, KY16 8LB, Scotland, UK.
| | | | - Ian A Johnston
- School of Biology, Scottish Oceans Institute, University of St Andrews, St Andrews, KY16 8LB, Scotland, UK.
| | - Maeli Dal-Pai-Silva
- Institute of Biosciences of Botucatu, São Paulo State University - UNESP, Botucatu, 18618-970, São Paulo, Brazil.
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16
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Rolland M, Dalsgaard J, Holm J, Gómez-Requeni P, Skov PV. Dietary methionine level affects growth performance and hepatic gene expression of GH-IGF system and protein turnover regulators in rainbow trout (Oncorhynchus mykiss) fed plant protein-based diets. Comp Biochem Physiol B Biochem Mol Biol 2014; 181:33-41. [PMID: 25479406 DOI: 10.1016/j.cbpb.2014.11.009] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 11/21/2014] [Accepted: 11/25/2014] [Indexed: 12/22/2022]
Abstract
The effects of dietary level of methionine were investigated in juvenile rainbow trout (Oncorhynchus mykiss) fed five plant-based diets containing increasing content of crystalline methionine (Met), in a six week growth trial. Changes in the hepatic expression of genes related to i) the somatotropic axis: including the growth hormone receptor I (GHR-I), insulin-like growth hormones I and II (IGF-I and IGF-II, respectively), and insulin-like growth hormone binding protein-1b (IGFBP-1b); and ii) protein turnover: including the target of rapamycin protein (TOR), proteasome 20 delta (Prot 20D), cathepsin L, calpains 1 and 2 (Capn 1 and Capn 2, respectively), and calpastatin long and short isoforms (CAST-L and CAST-S, respectively) were measured for each dietary treatment. The transcript levels of GHR-I and IGF-I increased linearly with the increase of dietary Met content (P<0.01), reflecting overall growth performances. The apparent capacity for hepatic protein degradation (derived from the gene expression of TOR, Prot 20D, Capn 1, Capn 2, CAST-L and CAST-S) decreased with increasing dietary Met level in a relatively linear manner. Our results suggest that Met availability affects, directly or indirectly, the expression of genes involved in the GH/IGF axis response and protein turnover, which are centrally involved in the regulation of growth.
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Affiliation(s)
- Marine Rolland
- BioMar A/S, Mylius Erichsensvej 35, DK-7330 Brande, Denmark; Technical University of Denmark, DTU Aqua, Section for Aquaculture, The North Sea Research Center, P.O. Box 101, DK-9850 Hirtshals, Denmark.
| | - Johanne Dalsgaard
- Technical University of Denmark, DTU Aqua, Section for Aquaculture, The North Sea Research Center, P.O. Box 101, DK-9850 Hirtshals, Denmark
| | - Jørgen Holm
- BioMar A/S, Mylius Erichsensvej 35, DK-7330 Brande, Denmark
| | | | - Peter V Skov
- Technical University of Denmark, DTU Aqua, Section for Aquaculture, The North Sea Research Center, P.O. Box 101, DK-9850 Hirtshals, Denmark
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Seiliez I, Gabillard JC, Riflade M, Sadoul B, Dias K, Avérous J, Tesseraud S, Skiba S, Panserat S. Amino acids downregulate the expression of several autophagy-related genes in rainbow trout myoblasts. Autophagy 2014; 8:364-75. [DOI: 10.4161/auto.18863] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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18
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Seiliez I, Dias K, Cleveland BM. Contribution of the autophagy-lysosomal and ubiquitin-proteasomal proteolytic systems to total proteolysis in rainbow trout (Oncorhynchus mykiss) myotubes. Am J Physiol Regul Integr Comp Physiol 2014; 307:R1330-7. [PMID: 25274907 DOI: 10.1152/ajpregu.00370.2014] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The ubiquitin-proteasome system (UPS) is recognized as the major contributor to total proteolysis in mammalian skeletal muscle, responsible for 50% or more of total protein degradation in skeletal muscle, whereas the autophagic-lysosome system (ALS) plays a more minor role. While the relative contribution of these systems to muscle loss is well documented in mammals, little is known in fish species. The current study uses myotubes derived from rainbow trout myogenic precursor cells as an in vitro model of white muscle tissue. Cells were incubated in complete or serum-deprived media or media supplemented with insulin-like growth factor-1 (IGF-1) and exposed to selective proteolytic inhibitors to determine the relative contribution of the ALS and UPS to total protein degradation in myotubes in different culture conditions. Results indicate that the ALS is responsible for 30-34% and 50% of total protein degradation in myotubes in complete and serum-deprived media, respectively. The UPS appears to contribute much less to total protein degradation at almost 4% in cells in complete media to nearly 17% in serum-deprived cells. IGF-1 decreases activity of both systems, as it inhibited the upregulation of both proteolytic systems induced by serum deprivation. The combined inhibition of both the ALS and UPS reduced degradation by a maximum of 55% in serum-deprived cells, suggesting an important contribution of other proteolytic systems to total protein degradation. Collectively, these data identify the ALS as a potential target for strategies aimed at improving muscle protein retention and fillet yield through reductions in protein degradation.
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Affiliation(s)
- Iban Seiliez
- Institut National de la Recherche Agronomique, Nutrition Métabolisme Aquaculture, St-Pée-sur-Nivelle, France; and
| | - Karine Dias
- Institut National de la Recherche Agronomique, Nutrition Métabolisme Aquaculture, St-Pée-sur-Nivelle, France; and
| | - Beth M Cleveland
- National Center for Cool and Cold Water Aquaculture, Agricultural Research Service/United States Department of Agriculture, Kearneysville, West Virginia
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Cleveland BM. In vitro and in vivo effects of phytoestrogens on protein turnover in rainbow trout (Oncorhynchus mykiss) white muscle. Comp Biochem Physiol C Toxicol Pharmacol 2014; 165:9-16. [PMID: 24874080 DOI: 10.1016/j.cbpc.2014.05.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 05/17/2014] [Accepted: 05/18/2014] [Indexed: 12/30/2022]
Abstract
Soybeans and other legumes investigated as fishmeal replacements in aquafeeds contain phytoestrogens capable of binding to and activating estrogen receptors. Estradiol has catabolic effects in salmonid white muscle, partially through increases in protein turnover. The current study determines whether phytoestrogens promote similar effects. In rainbow trout (Oncorhynchus mykiss) primary myocyte cultures, the phytoestrogens genistein, daidzein, glycitein, and R- and S-equol reduced rates of protein synthesis and genistein, the phytoestrogen of greatest abundance in soy, also increased rates of protein degradation. Increased expression of the ubiquitin ligase fbxo32 and autophagy-related genes was observed with high concentrations of genistein (100 μM), and R- and S-equol (100 μM) also up-regulated autophagy-related genes. In contrast, low genistein concentrations in vitro (0.01-0.10 μM) and in vivo (5 μg/g body mass) decreased fbxo32 expression, suggesting a potential metabolic benefit for low levels of genistein exposure. Phytoestrogens reduced cell proliferation, indicating that effects of phytoestrogens extend from metabolic to mitogenic processes. Co-incubation of genistein with the estrogen receptor (ER) antagonist, ICI 182,780, ameliorated effects of genistein on protein degradation, but not protein synthesis or cell proliferation, indicating that effects of genistein are mediated through ER-dependent and ER-independent mechanisms. Collectively, these data warrant additional studies to determine the extent to which dietary phytoestrogens, especially genistein, affect physiological processes that impact growth and nutrient retention.
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Affiliation(s)
- Beth M Cleveland
- National Center for Cool and Cold Water Aquaculture, Agricultural Research Service, United States Department of Agriculture, 11861 Leetown Rd, Kearneysville, WV 25430 USA.
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20
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Calduch-Giner JA, Echasseriau Y, Crespo D, Baron D, Planas JV, Prunet P, Pérez-Sánchez J. Transcriptional assessment by microarray analysis and large-scale meta-analysis of the metabolic capacity of cardiac and skeletal muscle tissues to cope with reduced nutrient availability in Gilthead Sea Bream (Sparus aurata L.). MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2014; 16:423-435. [PMID: 24626932 DOI: 10.1007/s10126-014-9562-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 01/06/2014] [Indexed: 06/03/2023]
Abstract
The effects of nutrient availability on the transcriptome of cardiac and skeletal muscle tissues were assessed in juvenile gilthead sea bream fed with a standard diet at two feeding levels: (1) full ration size and (2) 70 % satiation followed by a finishing phase at the maintenance ration. Microarray analysis evidenced a characteristic transcriptomic profile for each muscle tissue following changes in oxidative capacity (heart > red skeletal muscle > white skeletal muscle). The transcriptome of heart and secondly that of red skeletal muscle were highly responsive to nutritional changes, whereas that of glycolytic white skeletal muscle showed less ability to respond. The highly expressed and nutritionally regulated genes of heart were mainly related to signal transduction and transcriptional regulation. In contrast, those of white muscle were enriched in gene ontology (GO) terms related to proteolysis and protein ubiquitination. Microarray meta-analysis using the bioinformatic tool Fish and Chips ( http://fishandchips.genouest.org/index.php ) showed the close association of a representative cluster of white skeletal muscle with some of cardiac and red skeletal muscle, and many GO terms related to mitochondrial function appeared to be common links between them. A second round of cluster comparisons revealed that mitochondria-related GOs also linked differentially expressed genes of heart with those of liver from cortisol-treated gilthead sea bream. These results show that mitochondria are among the first responders to environmental and nutritional stress stimuli in gilthead sea bream, and functional phenotyping of this cellular organelle is highly promising to obtain reliable markers of growth performance and well-being in this fish species.
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Affiliation(s)
- Josep A Calduch-Giner
- Nutrigenomics and Fish Growth Endocrinology Group, Instituto de Acuicultura Torre de la Sal (IATS-CSIC), Castellón, Spain
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Fuentes EN, Zuloaga R, Valdes JA, Molina A, Alvarez M. Skeletal muscle plasticity induced by seasonal acclimatization involves IGF1 signaling: implications in ribosomal biogenesis and protein synthesis. Comp Biochem Physiol B Biochem Mol Biol 2014; 176:48-57. [PMID: 25088252 DOI: 10.1016/j.cbpb.2014.07.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Revised: 07/11/2014] [Accepted: 07/22/2014] [Indexed: 12/15/2022]
Abstract
One of the most fundamental biological processes in living organisms that are affected by environmental fluctuations is growth. In fish, skeletal muscle accounts for the largest proportion of body mass, and the growth of this tissue is mainly controlled by the insulin-like growth factor (IGF) system. By using the carp (Cyprinus carpio), a fish that inhabits extreme conditions during winter and summer, we assessed the skeletal muscle plasticity induced by seasonal acclimatization and the relation of IGF signaling with protein synthesis and ribosomal biogenesis. The expression of igf1 in muscle decreased during winter in comparison with summer, whereas the expression for both paralogues of igf2 did not change significantly between seasons. The expression of igf1 receptor a (igf1ra), but not of igf1rb, was down-regulated in muscle during the winter as compared to the summer. A decrease in protein contents and protein phosphorylation for IGF signaling molecules in muscle was observed in winter-acclimatized carp. This was related with a decreased expression in muscle for markers of myogenesis (myoblast determination factor (myod), myogenic factor 5 (myf5), and myogenin (myog)); protein synthesis (myosin heavy chain (mhc) and myosin light chain (mlc3 and mlc1b)); and ribosomal biogenesis (pre-rRNA and ribosomal proteins). IGF signaling, and key markers of ribosomal biogenesis, protein synthesis, and myogenesis were affected by seasonal acclimatization, with differential regulation in gene expression and signaling pathway activation observed in muscle between both seasons. This suggests that these molecules are responsible for the muscle plasticity induced by seasonal acclimatization in carp.
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Affiliation(s)
- Eduardo N Fuentes
- Laboratorio de Biotecnología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andrés Bello, Av. Republica 217, Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), Víctor Lamas 1290, PO Box 160-C, Concepción, Chile.
| | - Rodrigo Zuloaga
- Laboratorio de Biotecnología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andrés Bello, Av. Republica 217, Santiago, Chile
| | - Juan Antonio Valdes
- Laboratorio de Biotecnología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andrés Bello, Av. Republica 217, Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), Víctor Lamas 1290, PO Box 160-C, Concepción, Chile
| | - Alfredo Molina
- Laboratorio de Biotecnología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andrés Bello, Av. Republica 217, Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), Víctor Lamas 1290, PO Box 160-C, Concepción, Chile
| | - Marco Alvarez
- Interdisciplinary Center for Aquaculture Research (INCAR), Víctor Lamas 1290, PO Box 160-C, Concepción, Chile; Laboratorio de Biología Celular y Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andrés Bello, Quillota 980, Viña del Mar, Chile.
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RNA-seq analysis of early hepatic response to handling and confinement stress in rainbow trout. PLoS One 2014; 9:e88492. [PMID: 24558395 PMCID: PMC3928254 DOI: 10.1371/journal.pone.0088492] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Accepted: 01/07/2014] [Indexed: 12/02/2022] Open
Abstract
Fish under intensive rearing conditions experience various stressors which have negative impacts on survival, growth, reproduction and fillet quality. Identifying and characterizing the molecular mechanisms underlying stress responses will facilitate the development of strategies that aim to improve animal welfare and aquaculture production efficiency. In this study, we used RNA-seq to identify transcripts which are differentially expressed in the rainbow trout liver in response to handling and confinement stress. These stressors were selected due to their relevance in aquaculture production. Total RNA was extracted from the livers of individual fish in five tanks having eight fish each, including three tanks of fish subjected to a 3 hour handling and confinement stress and two control tanks. Equal amount of total RNA of six individual fish was pooled by tank to create five RNA-seq libraries which were sequenced in one lane of Illumina HiSeq 2000. Three sequencing runs were conducted to obtain a total of 491,570,566 reads which were mapped onto the previously generated stress reference transcriptome to identify 316 differentially expressed transcripts (DETs). Twenty one DETs were selected for qPCR to validate the RNA-seq approach. The fold changes in gene expression identified by RNA-seq and qPCR were highly correlated (R2 = 0.88). Several gene ontology terms including transcription factor activity and biological process such as glucose metabolic process were enriched among these DETs. Pathways involved in response to handling and confinement stress were implicated by mapping the DETs to reference pathways in the KEGG database. Accession Numbers Raw RNA-seq reads have been submitted to the NCBI Short Read Archive under accession number SRP022881. Customized Perl Scripts All customized scripts described in this paper are available from Dr. Guangtu Gao or the corresponding author.
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23
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Fuentes EN, Pino K, Navarro C, Delgado I, Valdés JA, Molina A. Transient inactivation of myostatin induces muscle hypertrophy and overcompensatory growth in zebrafish via inactivation of the SMAD signaling pathway. J Biotechnol 2013; 168:295-302. [PMID: 24184273 DOI: 10.1016/j.jbiotec.2013.10.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 09/30/2013] [Accepted: 10/21/2013] [Indexed: 12/30/2022]
Abstract
Myostatin (MSTN) is the main negative regulator of muscle growth and development in vertebrates. In fish, little is known about the molecular mechanisms behind how MSTN inactivation triggers skeletal muscle enhancement, particularly regarding the signaling pathways involved in this process. Moreover, there have not been reports on the biotechnological applications of MSTN and its signal transduction. In this context, zebrafish underwent compensatory growth using fasting and refeeding trials, and MSTN activity was inactivated with dominant negative LAPD76A recombinant proteins during the refeeding period, when a rapid, compensatory muscle growth was observed. Treated fish displayed an overcompensation of growth characterized by higher muscle hypertrophy and growth performance than constantly fed, control fish. Treatment with LAPD76A recombinant proteins triggered inactivation of the SMAD signaling pathway in skeletal muscle, the main signal transduction used by MSTN to achieve its biological actions. Therefore, transient inactivation of MSTN during the compensatory growth of zebrafish led to a decrease in the SMAD signaling pathway in muscle, triggering muscle hypertrophy and finally improving growth performance, thus, zebrafish achieved an overcompensation of growth. The present study shows an attractive strategy for improving muscle growth in a fish species by mixing a classical strategy, such as compensatory growth, and a biotechnological approach, such as the use of recombinant proteins for inhibiting the biological actions of MSTN. The mix of both strategies may represent a method that could be applied in order to improve growth in commercial fish of interest for aquaculture.
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Affiliation(s)
- Eduardo N Fuentes
- Universidad Andres Bello, Departmento de Ciencias Biologicas, Facultad de Ciencias Biologicas, Av. Republica 217, Santiago, Chile; FONDAP, Interdisciplinary Center for Aquaculture Research (INCAR), Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andrés Bello, Santiago, Chile.
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24
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Fuentes EN, Valdés JA, Molina A, Björnsson BT. Regulation of skeletal muscle growth in fish by the growth hormone--insulin-like growth factor system. Gen Comp Endocrinol 2013; 192:136-48. [PMID: 23791761 DOI: 10.1016/j.ygcen.2013.06.009] [Citation(s) in RCA: 151] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2013] [Revised: 05/30/2013] [Accepted: 06/03/2013] [Indexed: 12/17/2022]
Abstract
The growth hormone (GH)-insulin-like growth factor (IGF) system is the key promoter of growth in vertebrates; however, how this system modulates muscle mass in fish is just recently becoming elucidated. In fish, the GH induces muscle growth by modulating the expression of several genes belonging to the myostatin (MSTN), atrophy, GH, and IGF systems as well as myogenic regulatory factors (MRFs). The GH controls the expression of igf1 via Janus kinase 2 (JAK2)/signal transducers and activators of the transcription 5 (STAT5) signaling pathway, but it seems that it is not the major regulator. These mild effects of the GH on igf1 expression in fish muscle seem to be related with the presence of higher contents of truncated GH receptor1 (tGHR1) than full length GHR (flGHR1). IGFs in fish stimulate myogenic cell proliferation, differentiation, and protein synthesis through the MAPK/ERK and PI3K/AKT/TOR signaling pathways, concomitant with abolishing protein degradation and atrophy via the PI3K/AKT/FOXO signaling pathway. Besides these signaling pathways control the expression of several genes belonging to the atrophy and IGF systems. Particularly, IGFs and amino acid control the expression of igf1, thus, suggesting other of alternative signaling pathways regulating the transcription of this growth factor. The possible role of IGF binding proteins (IGFBPs) and the contribution of muscle-derived versus hepatic-produced IGF1 on fish muscle growth is also addressed. Thus, a comprehensive overview on the GH-IGF system regulating fish skeletal muscle growth is presented, as well as perspectives for future research in this field.
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Affiliation(s)
- Eduardo N Fuentes
- Laboratorio de Biotecnología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andrés Bello, Av. Republica 217, Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), Víctor Lamas 1290, PO Box 160-C, Concepción, Chile.
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25
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Liu L, Li C, Su B, Beck BH, Peatman E. Short-term feed deprivation alters immune status of surface mucosa in channel catfish (Ictalurus punctatus). PLoS One 2013; 8:e74581. [PMID: 24023952 PMCID: PMC3762756 DOI: 10.1371/journal.pone.0074581] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 08/04/2013] [Indexed: 12/31/2022] Open
Abstract
Short-term feed deprivation (or fasting) is a common occurrence in aquacultured fish species whether due to season, production strategies, or disease. In channel catfish (Ictalurus punctatus) fasting impacts susceptibility to several bacterial pathogens including Flavobacterium columnare, the causative agent of columnaris disease. As columnaris gains entry through the gills and skin of fish, we examined here changes in transcriptional regulation induced in these surface mucosal tissues due to short-term (7 day) fasting. RNA-seq expression analysis revealed a total of 1,545 genes perturbed by fasting. Fasting significantly altered expression of critical innate immune factors in a manner consistent with lower immune fitness as well as dysregulating key genes involved in energy metabolism and cell cycling/proliferation. Downregulation of innate immune actors such as iNOS2b, Lysozyme C, and peptidoglycan recognition protein 6 is predicted to impact the delicate recognition/tolerance balance for commensal and pathogenic bacteria on the skin and gill. The highlighted expression profiles reveal potential mechanistic similarities between gut and surface mucosa and underscore the complex interrelationships between nutrition, mucosal integrity, and immunity in teleost fish.
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Affiliation(s)
- Lisa Liu
- Department of Chemistry and Chemical Biology, College of Arts and Sciences, Cornell University, Ithaca, New York, United States of America
| | - Chao Li
- Department of Fisheries and Allied Aquacultures, Auburn University, Auburn, Alabama, United States of America
| | - Baofeng Su
- Department of Fisheries and Allied Aquacultures, Auburn University, Auburn, Alabama, United States of America
| | - Benjamin H. Beck
- United States Department of Agriculture, Agricultural Research Service, Stuttgart National Aquaculture Research Center, Stuttgart, Arkansas, United States of America
| | - Eric Peatman
- Department of Fisheries and Allied Aquacultures, Auburn University, Auburn, Alabama, United States of America
- * E-mail:
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26
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Physiological pathways involved in nutritional muscle dystrophy and healing in European sea bass (Dicentrarchus labrax) larvae. Comp Biochem Physiol A Mol Integr Physiol 2013. [DOI: 10.1016/j.cbpa.2012.11.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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27
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Garcia de la serrana D, Vieira VLA, Andree KB, Darias M, Estévez A, Gisbert E, Johnston IA. Development temperature has persistent effects on muscle growth responses in gilthead sea bream. PLoS One 2012; 7:e51884. [PMID: 23284803 PMCID: PMC3524095 DOI: 10.1371/journal.pone.0051884] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Accepted: 11/06/2012] [Indexed: 01/06/2023] Open
Abstract
Initially we characterised growth responses to altered nutritional input at the transcriptional and tissue levels in the fast skeletal muscle of juvenile gilthead sea bream. Fish reared at 21-22°C (range) were fed a commercial diet at 3% body mass d(-1) (non-satiation feeding, NSF) for 4 weeks, fasted for 4d (F) and then fed to satiation (SF) for 21d. 13 out of 34 genes investigated showed consistent patterns of regulation between nutritional states. Fasting was associated with a 20-fold increase in MAFbx, and a 5-fold increase in Six1 and WASp expression, which returned to NSF levels within 16h of SF. Refeeding to satiation was associated with a rapid (<24 h) 12 to 17-fold increase in UNC45, Hsp70 and Hsp90α transcripts coding for molecular chaperones associated with unfolded protein response pathways. The growth factors FGF6 and IGF1 increased 6.0 and 4.5-fold within 16 h and 24 h of refeeding respectively. The average growth in diameter of fast muscle fibres was checked with fasting and significant fibre hypertrophy was only observed after 13d and 21d SF. To investigate developmental plasticity in growth responses we used the same experimental protocol with fish reared at either 17.5-18.5°C (range) (LT) or 21-22°C (range) (HT) to metamorphosis and then transferred to 21-22°C. There were persistent effects of development temperature on muscle growth patterns with 20% more fibres of lower average diameter in LT than HT group of similar body size. Altering the nutritional input to the muscle to stimulate growth revealed cryptic changes in the expression of UNC45 and Hsp90α with higher transcript abundance in the LT than HT groups, whereas there were no differences in the expression of MAFbx and Six1. It was concluded that myogenesis and gene expression patterns during growth are not fixed, but can be modified by temperature during the early stages of the life cycle.
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Affiliation(s)
- Daniel Garcia de la serrana
- Physiological and Evolutionary Genomics Laboratory, Scottish Oceans Institute, School of Biology, University of St Andrews, St Andrews, Scotland, United Kingdom
- * E-mail: (DGS); (IAJ)
| | - Vera L. A. Vieira
- Physiological and Evolutionary Genomics Laboratory, Scottish Oceans Institute, School of Biology, University of St Andrews, St Andrews, Scotland, United Kingdom
| | - Karl B. Andree
- Institut de Recerca i Tecnologia Agroalimentàries, Sant Carles de la Ràpita, Catalonia, Spain
| | - Maria Darias
- Institut de Recerca i Tecnologia Agroalimentàries, Sant Carles de la Ràpita, Catalonia, Spain
| | - Alicia Estévez
- Institut de Recerca i Tecnologia Agroalimentàries, Sant Carles de la Ràpita, Catalonia, Spain
| | - Enric Gisbert
- Institut de Recerca i Tecnologia Agroalimentàries, Sant Carles de la Ràpita, Catalonia, Spain
| | - Ian A Johnston
- Physiological and Evolutionary Genomics Laboratory, Scottish Oceans Institute, School of Biology, University of St Andrews, St Andrews, Scotland, United Kingdom
- * E-mail: (DGS); (IAJ)
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Lamarre SG, Ditlecadet D, McKenzie DJ, Bonnaud L, Driedzic WR. Mechanisms of protein degradation in mantle muscle and proposed gill remodeling in starved Sepia officinalis. Am J Physiol Regul Integr Comp Physiol 2012; 303:R427-37. [PMID: 22647292 DOI: 10.1152/ajpregu.00077.2012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Cephalopods have relatively high rates of protein synthesis compared to rates of protein degradation, along with minimal carbohydrate and lipid reserves. During food deprivation on board protein is catabolized as a metabolic fuel. The aim of the current study was to assess whether biochemical indices of protein synthesis and proteolytic mechanisms were altered in cuttlefish, Sepia officinalis, starved for 7 days. In mantle muscle, food deprivation is associated with a decrease in protein synthesis, as indicated by a decrease in the total RNA level and dephosphorylation of key signaling molecules, such as the eukaryote binding protein, 4E-BP1 (regulator of translation) and Akt. The ubiquitination-proteasome system (UPS) is activated as shown by an increase in the levels of proteasome β-subunit mRNA, polyubiquitinated protein, and polyubiquitin mRNA. As well, cathepsin activity levels are increased, suggesting increased proteolysis through the lysosomal pathway. Together, these mechanisms could supply amino acids as metabolic fuels. In gill, the situation is quite different. It appears that during the first stages of starvation, both protein synthesis and protein degradation are enhanced in gill. This is based upon increased phosphorylation of 4E-BP1 and enhanced levels of UPS indicators, especially 20S proteasome activity and polyubiquitin mRNA. It is proposed that an increased protein turnover is related to gill remodeling perhaps to retain essential hemolymph-borne compounds.
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Affiliation(s)
- Simon G Lamarre
- Department of Biochemistry, Memorial University of Newfoundland, St. John’s, Canada
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29
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Tacchi L, Bickerdike R, Secombes CJ, Martin SAM. Muscle-specific RING finger (MuRF) cDNAs in Atlantic salmon (Salmo salar) and their role as regulators of muscle protein degradation. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2012; 14:35-45. [PMID: 21584661 DOI: 10.1007/s10126-011-9385-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2010] [Accepted: 05/03/2011] [Indexed: 05/30/2023]
Abstract
The selection of proteins destined for degradation by the ubiquitin-proteasome pathway is coordinated by E3 ubiquitin ligases (E3Ub). One group of E3Ubs is described as muscle-specific RING finger (MuRF) molecules. In mammals, these proteins are believed to be central to targetting of muscle proteins for degradation during physiological perturbations such as starvation and inflammatory responses. In fish, the diversity of MuRF sequences is unexplored as is the expression of their mRNAs. In this study, three MuRF1 cDNAs, denoted as MuRF1a, MuRF1b, and MuRF1c, and a single MuRF2 were identified and characterized in Atlantic salmon. The MuRF1 sequences are highly conserved and encode predicted proteins of 349, 350, and 353 amino acids, whereas MuRF2 encodes a longer protein of 462 amino acids. The evolutionary relationship of these sequences with other fish and mammalian molecules shows that MuRF1a and 1b may have arisen from a recent salmonid duplication. The mRNA of MuRFs was expressed in multiple tissues, with highest abundance in white muscle tissue followed by the heart. The expression of MuRFs was modulated after both starvation and immune challenge. Starvation increased expression of all MuRF mRNAs in white muscle, with the greatest increase found in MuRF1a. A proinflammatory stimulation increased expression of MuRF mRNA in muscle and other tissues indicating a role of these proteins in protein degradation during inflammation.
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Affiliation(s)
- Luca Tacchi
- Institute of Biological and Environmental Sciences, University of Aberdeen, Tillydrone Avenue, Aberdeen, AB24 2TZ, UK
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30
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Sánchez CC, Weber GM, Gao G, Cleveland BM, Yao J, Rexroad CE. Generation of a reference transcriptome for evaluating rainbow trout responses to various stressors. BMC Genomics 2011; 12:626. [PMID: 22188770 PMCID: PMC3305546 DOI: 10.1186/1471-2164-12-626] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Accepted: 12/21/2011] [Indexed: 01/13/2023] Open
Abstract
Background Fish under intensive culture conditions are exposed to a variety of acute and chronic stressors, including high rearing densities, sub-optimal water quality, and severe thermal fluctuations. Such stressors are inherent in aquaculture production and can induce physiological responses with adverse effects on traits important to producers and consumers, including those associated with growth, nutrition, reproduction, immune response, and fillet quality. Understanding and monitoring the biological mechanisms underlying stress responses will facilitate alleviating their negative effects through selective breeding and changes in management practices, resulting in improved animal welfare and production efficiency. Results Physiological responses to five treatments associated with stress were characterized by measuring plasma lysozyme activity, glucose, lactate, chloride, and cortisol concentrations, in addition to stress-associated transcripts by quantitative PCR. Results indicate that the fish had significant stressor-specific changes in their physiological conditions. Sequencing of a pooled normalized transcriptome library created from gill, brain, liver, spleen, kidney and muscle RNA of control and stressed fish produced 3,160,306 expressed sequence tags which were assembled and annotated. SNP discovery resulted in identification of ~58,000 putative single nucleotide polymorphisms including 24,479 which were predicted to fall within exons. Of these, 4907 were predicted to occupy the first position of a codon and 4110 the second, increasing the probability to impact amino acid sequence variation and potentially gene function. Conclusion We have generated and characterized a reference transcriptome for rainbow trout that represents multiple tissues responding to multiple stressors common to aquaculture production environments. This resource compliments existing public transcriptome data and will facilitate approaches aiming to evaluate gene expression associated with stress in this species.
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Affiliation(s)
- Cecilia C Sánchez
- Shepherd University, Institute of Environmental and Physical Sciences, Robert C. Byrd Science and Technology Center, Shepherdstown, WV 25443, USA
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Cleveland BM, Weber GM. Effects of sex steroids on indices of protein turnover in rainbow trout (Oncorhynchusmykiss) white muscle. Gen Comp Endocrinol 2011; 174:132-42. [PMID: 21878334 DOI: 10.1016/j.ygcen.2011.08.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Revised: 08/12/2011] [Accepted: 08/15/2011] [Indexed: 01/26/2023]
Abstract
Effects of 17β-estradiol (E2), testosterone, and 5α-dihydrotestosterone (DHT) on protein turnover and proteolytic gene expression were determined in rainbow trout (Oncorhynchus mykiss) primary myocytes and white muscle tissue. E2 reduced rates of protein synthesis and increased rates of protein degradation in primary myocytes by 45% and 27%, respectively. DHT reduced rates of protein synthesis by 27%. Testosterone did not affect protein synthesis and neither testosterone nor DHT affected rates of protein degradation. Single injections of E2 increased expression of ubiquitin ligase genes fbxo32, fbxo25, and murf1, and the proteasome subunit psmd6 by 24h after injection. Within the cathepsin-lysosome pathway, E2 increased expression of cathepsins ctsd and ctsl, as well as autophagy-related genes atg4b and lc3b. Additionally, E2 injection up-regulated the expression of casp3 and casp9 caspase genes. Incubation of primary myocytes with E2 also increased expression of ubiquitin ligase genes. Therefore, catabolic effects of E2 on protein turnover result in part from E2-induced increases in proteolytic gene expression directly in muscle. Injection of testosterone increased milli-calpain (capn2) and casp3 expression, and DHT increased ctsd expression in vivo, whereas both androgens up-regulated fbxo32 expression in primary myocytes. These results suggest that effects of androgens on protein turnover in muscle are not driven primarily by direct effects of these hormones in this tissue.
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Affiliation(s)
- Beth M Cleveland
- United States Department of Agriculture, Agricultural Research Service, National Center for Cool and Cold Water Aquaculture, 11861 Leetown Rd., Kearneysville, WV 25430, USA.
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Seiliez I, Panserat S, Skiba-Cassy S, Polakof S. Effect of acute and chronic insulin administrations on major factors involved in the control of muscle protein turnover in rainbow trout (Oncorhynchus mykiss). Gen Comp Endocrinol 2011; 172:363-70. [PMID: 21463630 DOI: 10.1016/j.ygcen.2011.03.026] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Revised: 03/24/2011] [Accepted: 03/26/2011] [Indexed: 12/28/2022]
Abstract
In this study, the effect of acute and chronic insulin treatments on major factors involved in the control of muscle protein turnover were investigated in rainbow trout (Oncorhynchus mykiss). We found that acute but not chronic insulin administration leads to the induction of the phosphorylation of several key factors (IRS1, TOR and 4E-BP1) involved in the control of the protein synthesis and to the concomitant down-regulation of the expression of ubiquitin-proteasome-related genes (atrogin1, C2, C9) and the calpains inhibitor calpastatin. In contrast, no modification of autophagy-related gene (LC3B, gabarpl1, atg4b) expressions was observed suggesting that the mechanisms controlling this proteolytic route have diverged throughout the evolution. Overall, these results provide a possible explanation of the growth-promoting properties of insulin previously described in fish and indicate that this hormone acutely administrated is able to exert a regulatory influence on various factors associated with growth in skeletal muscle.
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Affiliation(s)
- Iban Seiliez
- INRA, UR1067 Nutrition Métabolisme et Aquaculture, Saint-Pée-sur-Nivelle, France.
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Fuentes EN, Björnsson BT, Valdés JA, Einarsdottir IE, Lorca B, Alvarez M, Molina A. IGF-I/PI3K/Akt and IGF-I/MAPK/ERK pathways in vivo in skeletal muscle are regulated by nutrition and contribute to somatic growth in the fine flounder. Am J Physiol Regul Integr Comp Physiol 2011; 300:R1532-42. [PMID: 21389330 DOI: 10.1152/ajpregu.00535.2010] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The insulin-like growth factor-I (IGF-I) is a key regulator of skeletal muscle growth in vertebrates, promoting mitogenic and anabolic effects through the activation of the MAPK/ERK and the PI3K/Akt signaling pathways. Nutrition also affects skeletal muscle growth, activating intracellular pathways and inducing protein synthesis and accretion. Thus, both hormonal and nutritional signaling regulate muscle mass. In this context, plasma IGF-I levels and the activation of both pathways in response to food were evaluated in the fine flounder using fasting and refeeding trials. The present study describes for the first time in a nonmammalian species that the MAPK/ERK and PI3K/Akt are activated by exogenous circulating IGF-I, as well as showing that the MAPK/ERK pathway activation is modulated by the nutritional status. Also, these results show that there is a time-dependent regulation of IGF-I plasma levels and its signaling pathways in muscle. Together, these results suggest that the nutritionally managed IGF-I could be regulating the activation of the MAPK/ERK and the PI3K/Akt signaling pathways differentially according to the nutritional status, triggering different effects in growth parameters and therefore contributing to somatic growth in fish. This study contributes to the understanding of the nutrient regulation of IGF-I and its signaling pathways in skeletal muscle growth in nonmammalian species, therefore providing insight concerning the events controlling somatic growth in vertebrates.
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Affiliation(s)
- Eduardo N Fuentes
- Laboratorio de Biotecnología Molecular, Facultad de Ciencias Biológicas, Universidad Andres Bello, Santiago, Chile
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Wang J, Salem M, Qi N, Kenney PB, Rexroad CE, Yao J. Molecular characterization of the MuRF genes in rainbow trout: Potential role in muscle degradation. Comp Biochem Physiol B Biochem Mol Biol 2010; 158:208-15. [PMID: 21145412 DOI: 10.1016/j.cbpb.2010.11.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2010] [Revised: 11/23/2010] [Accepted: 11/23/2010] [Indexed: 12/31/2022]
Abstract
Muscle growth is determined primarily by the balance between protein synthesis and degradation. When rates of protein synthesis are similar between individuals, protein degradation is critical in explaining differences in growth efficiency. Studies in mammals showed that muscle atrophy results from increased protein breakdown, and is associated with activation of the ubiquitin proteasome pathway, including induction of the muscle-specific ubiquitin protein ligase, MuRF1. Animals lacking MuRF1 are resistant to muscle atrophy. In fish, little is known about the role of the proteasome/MuRF pathway in muscle degradation. The objectives of this study were to: 1) clone and characterize MuRF genes in rainbow trout; and 2) determine expression of MuRF genes in association with starvation- and vitellogenesis-induced muscle atrophy in rainbow trout. We have identified full-length cDNA sequences for three MuRF genes (MuRF1, MuRF2, and MuRF3). These genes encode proteins with typical MuRF structural domains, including a RING-finger, a B-box and a Leucine-rich coiled-coil domain. RT-PCR analysis showed that MuRF genes are predominantly expressed in muscle and heart tissues. Real time PCR analysis revealed that expression of all MuRF genes is up-regulated during starvation and MuRF3 is up-regulated in vitellogenesis-associated muscle degradation. These results suggest that MuRF genes have an important role in fish muscle protein degradation. Further studies are warranted to assess the potential use of MuRF genes as tools to monitor fish muscle growth and degradation.
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Affiliation(s)
- Jiannan Wang
- Laboratory of Animal Biotechnology and Genomics, Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, WV 26506, USA
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Tacchi L, Bickerdike R, Secombes CJ, Pooley NJ, Urquhart KL, Collet B, Martin SA. Ubiquitin E3 ligase atrogin-1 (Fbox-32) in Atlantic salmon (Salmo salar): Sequence analysis, genomic structure and modulation of expression. Comp Biochem Physiol B Biochem Mol Biol 2010; 157:364-73. [DOI: 10.1016/j.cbpb.2010.08.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2010] [Revised: 08/05/2010] [Accepted: 08/15/2010] [Indexed: 12/11/2022]
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An in vivo and in vitro assessment of autophagy-related gene expression in muscle of rainbow trout (Oncorhynchus mykiss). Comp Biochem Physiol B Biochem Mol Biol 2010; 157:258-66. [DOI: 10.1016/j.cbpb.2010.06.011] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2010] [Revised: 06/24/2010] [Accepted: 06/25/2010] [Indexed: 11/18/2022]
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Cleveland BM, Evenhuis JP. Molecular characterization of atrogin-1/F-box protein-32 (FBXO32) and F-box protein-25 (FBXO25) in rainbow trout (Oncorhynchus mykiss): Expression across tissues in response to feed deprivation. Comp Biochem Physiol B Biochem Mol Biol 2010; 157:248-57. [PMID: 20601059 DOI: 10.1016/j.cbpb.2010.06.010] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2010] [Revised: 06/22/2010] [Accepted: 06/23/2010] [Indexed: 12/27/2022]
Abstract
The characteristic increase in protein catabolism during muscle atrophy is largely the result of an increase in E3 ubiquitin ligase expression, specifically that of atrogin-1, or FBXO32, which functions to polyubiquitinate proteins. In rainbow trout, the cDNA sequences of two E3 ubiquitin ligase F-box proteins, FBXO32 and FBXO25, were characterized and their expression across tissues in response to feed deprivation was determined. The cDNA sequence for FBXO32 encodes a protein 355 amino acids long and is 97% identical to the homologous protein in salmon, 85% to zebrafish and 72% identical to both human and mouse. The cDNA for FBXO25 encodes a protein 356 amino acids in length that is 98% identical to the homologous protein in salmon, 84% to zebrafish, and 75% to human. After 28days of feed deprivation, FBXO32 expression increased by approximately 13-fold, 3-fold, and 5-fold in white muscle, red muscle, and intestine, respectively (P<0.05). Expression of FBXO32 and FBXO25 in kidney decreased 0.3-fold and 0.2-fold, respectively, and FBXO25 expression decreased by 0.2-fold in liver (P<0.05). These results indicate that these protein sequences are conserved and suggest that the up-regulation of FBXO32 is associated with skeletal and smooth muscle atrophy that occurs during fasting.
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Affiliation(s)
- Beth M Cleveland
- USDA-ARS, National Center for Cool and Cold Water Aquaculture, 11861 Leetown Rd, Kearneysville, WV 25430, USA.
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Cleveland BM, Weber GM. Effects of insulin-like growth factor-I, insulin, and leucine on protein turnover and ubiquitin ligase expression in rainbow trout primary myocytes. Am J Physiol Regul Integr Comp Physiol 2009; 298:R341-50. [PMID: 20007517 DOI: 10.1152/ajpregu.00516.2009] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The effects of insulin-like growth factor-I (IGF-I), insulin, and leucine on protein turnover and pathways that regulate proteolytic gene expression and protein polyubiquitination were investigated in primary cultures of 4-day-old rainbow trout myocytes. Supplementing media with 100 nM IGF-I increased protein synthesis by 13% (P < 0.05) and decreased protein degradation by 14% (P < 0.05). Treatment with 1 microM insulin increased protein synthesis by 13% (P < 0.05) and decreased protein degradation by 17% (P < 0.05). Supplementing media containing 0.6 mM leucine with an additional 2.5 mM leucine did not increase protein synthesis rates but reduced rates of protein degradation by 8% (P < 0.05). IGF-I (1 nM-100 nM) and insulin (1 nM-1 microM) independently reduced the abundance of ubiquitin ligase mRNA in a dose-dependent manner, with maximal reductions of approximately 70% for muscle atrophy F-box (Fbx) 32, 40% for Fbx25, and 25% for muscle RING finger-1 (MuRF1, P < 0.05). IGF-I and insulin stimulated phosphorylation of FOXO1 and FOXO4 (P < 0.05), which was inhibited by the phosphatidylinositol 3-kinase (PI 3-kinase) inhibitor wortmannin, and decreased the abundance of polyubiquitinated proteins by 10-20% (P < 0.05). Supplementing media with leucine reduced Fbx32 expression by 25% (P < 0.05) but did not affect Fbx25 nor MuRF1 transcript abundance. Serum deprivation decreased rates of protein synthesis by 60% (P < 0.05), increased protein degradation by 40% (P < 0.05), and increased expression of all ubiquitin ligases. These data suggest that, similar to mammals, the inhibitory effects of IGF-I and insulin on proteolysis occur via P I3-kinase/protein kinase B signaling and are partially responsible for the ability of these compounds to promote protein accretion.
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Affiliation(s)
- Beth M Cleveland
- United States Department of Agriculture, Agricultural Research Service, National Center for Cool and Cold Water Aquaculture, Kearneysville, West Virginia, USA.
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