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Crawley JAH, Nandar H, Zaw HT, Lahdenperä M, Franco dos Santos DJ, Seltmann MW, Brown JL, Goodsell RM, Oo ZM, Htut W, Nyein UK, Aung HH, Lummaa V. Asian elephant calf physiology and mahout perspectives during taming in Myanmar. ROYAL SOCIETY OPEN SCIENCE 2024; 11:231172. [PMID: 38601029 PMCID: PMC11004675 DOI: 10.1098/rsos.231172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 02/22/2024] [Accepted: 02/22/2024] [Indexed: 04/12/2024]
Abstract
A quarter of Asian elephants are captive, with greater than 90% of these tamed and cared for by handlers (mahouts) in Asia. Although taming is a much-discussed welfare issue, no studies to our knowledge have empirically assessed its impact on calves, and dialogue surrounding taming often lacks perspectives of those involved. Here, we interviewed mahouts involved in taming and monitored five physiological measures (faecal glucocorticoid metabolites (FGMs), serum cortisol, glucose, creatine kinase (CK) and heterophil:lymphocyte (H:L)) over the first 10 days of taming and following six months in 41 calves undergoing taming and 16 control individuals. These measures assess the duration and intensity of stress during taming. Interviews suggested mahouts had major concerns for their safety when discussing changing taming practices, an important consideration for future management. Calf physiological measures were elevated by 50-70% (FGMs/cortisol/glucose), 135% (H:L) and greater than 500% (CK) over the first few days of taming, indicative of elevated stress, not seen to the same extent in control adults. Some measures stabilized sooner (glucose/cortisol/CK/FGM: 7-10 days) than others (H:L: one-two months), indicating mostly acute stress. Our findings inform the welfare of approximately 15 000 captive elephants around the world. Future studies should compare taming in different populations and consider calf and mahout welfare.
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Affiliation(s)
| | - Hnin Nandar
- Myanma Timber Enterprise, Yangon11011, Myanmar
- Xishuangbanna Tropical Botanical Garden Institute, Chinese Academy of Sciences, , Yunnan650023, People's Republic of China
| | - Htet T. Zaw
- Myanma Timber Enterprise, Yangon11011, Myanmar
| | - Mirkka Lahdenperä
- Department of Biology, University of Turku, Turku20014, Finland
- Department of Public Health, University of Turku and Turku University Hospital, Turku20521, Finland
- Centre for Population Health Research, University of Turku and Turku University Hospital, Turku20521, Finland
| | | | | | - Janine L. Brown
- Center for Species Survival, Smithsonian Conservation Biology Institute, Front Royal, VA22630, USA
| | - Robert M. Goodsell
- Ecology and Evolutionary Biology, School of Biosciences, University of Sheffield, SheffieldS10 2TN, UK
- Naturhistoriska Riksmuseet, Stockholm 4011418, Sweden
| | - Zaw M. Oo
- Myanma Timber Enterprise, Yangon11011, Myanmar
| | - Win Htut
- Myanma Timber Enterprise, Yangon11011, Myanmar
| | - U. K. Nyein
- Myanma Timber Enterprise, Yangon11011, Myanmar
| | | | - Virpi Lummaa
- Department of Biology, University of Turku, Turku20014, Finland
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Raposo de Magalhães C, Sandoval K, Kagan F, McCormack G, Schrama D, Carrilho R, Farinha AP, Cerqueira M, Rodrigues PM. Transcriptomic changes behind Sparus aurata hepatic response to different aquaculture challenges: An RNA-seq study and multiomics integration. PLoS One 2024; 19:e0300472. [PMID: 38517901 PMCID: PMC10959376 DOI: 10.1371/journal.pone.0300472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 02/13/2024] [Indexed: 03/24/2024] Open
Abstract
Gilthead seabream (Sparus aurata) is an important species in Mediterranean aquaculture. Rapid intensification of its production and sub-optimal husbandry practices can cause stress, impairing overall fish performance and raising issues related to sustainability, animal welfare, and food safety. The advent of next-generation sequencing technologies has greatly revolutionized the study of fish stress biology, allowing a deeper understanding of the molecular stress responses. Here, we characterized for the first time, using RNA-seq, the different hepatic transcriptome responses of gilthead seabream to common aquaculture challenges, namely overcrowding, net handling, and hypoxia, further integrating them with the liver proteome and metabolome responses. After reference-guided transcriptome assembly, annotation, and differential gene expression analysis, 7, 343, and 654 genes were differentially expressed (adjusted p-value < 0.01, log2|fold-change| >1) in the fish from the overcrowding, net handling, and hypoxia challenged groups, respectively. Gene set enrichment analysis (FDR < 0.05) suggested a scenario of challenge-specific responses, that is, net handling induced ribosomal assembly stress, whereas hypoxia induced DNA replication stress in gilthead seabream hepatocytes, consistent with proteomics and metabolomics' results. However, both responses converged upon the downregulation of insulin growth factor signalling and induction of endoplasmic reticulum stress. These results demonstrate the high phenotypic plasticity of this species and its differential responses to distinct challenging environments at the transcriptomic level. Furthermore, it provides significant resources for characterizing and identifying potentially novel genes that are important for gilthead seabream resilience and aquaculture production efficiency with regard to fish welfare.
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Affiliation(s)
- Cláudia Raposo de Magalhães
- Centre of Marine Sciences (CCMAR), Universidade do Algarve, Campus de Gambelas, Faro, Portugal
- Universidade do Algarve, Campus de Gambelas, Faro, Portugal
| | - Kenneth Sandoval
- Molecular Evolution and Systematics Laboratory, Zoology, Ryan Institute & School of Natural Sciences, University of Galway, Galway, Ireland
| | | | - Grace McCormack
- Molecular Evolution and Systematics Laboratory, Zoology, Ryan Institute & School of Natural Sciences, University of Galway, Galway, Ireland
| | - Denise Schrama
- Centre of Marine Sciences (CCMAR), Universidade do Algarve, Campus de Gambelas, Faro, Portugal
- Universidade do Algarve, Campus de Gambelas, Faro, Portugal
| | - Raquel Carrilho
- Centre of Marine Sciences (CCMAR), Universidade do Algarve, Campus de Gambelas, Faro, Portugal
- Universidade do Algarve, Campus de Gambelas, Faro, Portugal
| | - Ana Paula Farinha
- Centre of Marine Sciences (CCMAR), Universidade do Algarve, Campus de Gambelas, Faro, Portugal
- Universidade do Algarve, Campus de Gambelas, Faro, Portugal
- Escola Superior Agrária de Santarém, Santarém, Portugal
| | - Marco Cerqueira
- Centre of Marine Sciences (CCMAR), Universidade do Algarve, Campus de Gambelas, Faro, Portugal
- Universidade do Algarve, Campus de Gambelas, Faro, Portugal
| | - Pedro M. Rodrigues
- Centre of Marine Sciences (CCMAR), Universidade do Algarve, Campus de Gambelas, Faro, Portugal
- Universidade do Algarve, Campus de Gambelas, Faro, Portugal
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Ram R, Pavan-Kumar A, Haldar C, Pathakota GB, Rasal K, Chaudhari A. Molecular cloning and expression profiling of insulin-like growth factor 2 and IGF-binding protein 6 in Clarias magur (Hamilton 1822). Anim Biotechnol 2023; 34:2262-2272. [PMID: 35714990 DOI: 10.1080/10495398.2022.2086561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Growth is an important trait in aquaculture and the major genes that regulate it are Insulin-like growth factors (IGFs) and IGF binding proteins (IGFBPs). In this study, the full-length coding sequences of IGF2 and IGFBP6 genes in the Indian catfish Clarias magur were cloned and characterized. The full-length cDNA sequences of IGF2 and IGFBP6 were 885 bp (ORF 642 bp) and 928 bp (ORF 600 bp), encoding 213 and 199 amino acids, respectively. Bioinformatics analyses revealed that the magur IGF2 and IGFBP6 proteins are hydrophilic and secretory in nature. Sequence alignment with other teleosts and mammalian orthologues shows conservation of the functional domains. Gene expression analysis in 6 individuals each of high (298 ± 5.0 g) and low (210 ± 6.0 g) growth performing families showed significantly (p < 0.05) higher expression (2.5-3 fold) of IGF2, and lower expression (∼2.5 fold) of IGFBP6 in liver and muscle of fast-growing fish. This study suggests that IGF2 could be playing a major role in the growth regulation of magur. These genes and their expression patterns could be developed into growth-associated markers for magur and other catfishes.
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Affiliation(s)
- Raju Ram
- Fish Genetics and Biotechnology Division, ICAR-Central Institute of Fisheries Education, Versova, Mumbai, India
| | - Annam Pavan-Kumar
- Fish Genetics and Biotechnology Division, ICAR-Central Institute of Fisheries Education, Versova, Mumbai, India
| | - Chandan Haldar
- Fish Genetics and Biotechnology Division, ICAR-Central Institute of Fisheries Education, Versova, Mumbai, India
| | - Gireesh-Babu Pathakota
- Fish Genetics and Biotechnology Division, ICAR-Central Institute of Fisheries Education, Versova, Mumbai, India
| | - Kiran Rasal
- Fish Genetics and Biotechnology Division, ICAR-Central Institute of Fisheries Education, Versova, Mumbai, India
| | - Aparna Chaudhari
- Fish Genetics and Biotechnology Division, ICAR-Central Institute of Fisheries Education, Versova, Mumbai, India
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Opinion AGR, Vanhomwegen M, De Boeck G, Aerts J. Long-term stress induced cortisol downregulation, growth reduction and cardiac remodeling in Atlantic salmon. J Exp Biol 2023; 226:jeb246504. [PMID: 37921456 PMCID: PMC10690108 DOI: 10.1242/jeb.246504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/19/2023] [Indexed: 11/04/2023]
Abstract
Stress and elevated plasma cortisol in salmonids have been linked with pathological remodeling of the heart and deterioration of fitness and welfare. However, these associations were based on biomarkers that fail to provide a retrospective view of stress. This study is the first whereby the association of long-term stress, using scale cortisol as a chronic stress biomarker, with cardiac morphology and growth performance of wild Atlantic salmon (Salmo salar) is made. Growth, heart morphology, plasma and scale cortisol levels, and expression of genes involved in cortisol regulation of the hypothalamic-pituitary-interrenal axis of undisturbed fish (control) were compared with those of fish exposed daily to stress for 8 weeks. Though scale cortisol levels showed a time-dependent accumulation in both groups, plasma and scale cortisol levels of stress group fish were 29.1% and 25.0% lower than those of control fish, respectively. These results correlated with the overall upregulation of stress-axis genes involved in the systemic negative feedback of cortisol, and local feedback via 11β-hydroxysteroid dehydrogenases, glucocorticoid and mineralocorticoid receptors in the stress treatment at the hypothalamus and pituitary level. These lower cortisol levels were, however, counterintuitive in terms of the growth performance as stress group fish grew 33.7% slower than control fish, which probably influenced the 8.4% increase in relative ventricle mass in the stress group. Though compact myocardium area between the treatments was comparable, these parameters showed significant linear correlations with scale cortisol levels, indicating the involvement of chronic stress in cardiac remodeling. These findings underscore the importance of scale cortisol as biomarker when associating chronic stress with long-term processes including cardiac remodeling.
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Affiliation(s)
- April Grace R. Opinion
- University of Antwerp, Department of Biology, ECOSPHERE, 2020 Antwerp, Belgium
- Ghent University, Department of Biology, Stress Physiology Research Group (StressChron), 8400 Ostend, Belgium
| | - Marine Vanhomwegen
- Ghent University, Department of Biology, Stress Physiology Research Group (StressChron), 8400 Ostend, Belgium
| | - Gudrun De Boeck
- University of Antwerp, Department of Biology, ECOSPHERE, 2020 Antwerp, Belgium
| | - Johan Aerts
- Ghent University, Department of Biology, Stress Physiology Research Group (StressChron), 8400 Ostend, Belgium
- Flanders Research Institute for Agriculture, Fisheries and Food, Animal Sciences Unit, Stress Physiology Research Group (StressChron), 8400 Ostend, Belgium
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Wan Y, Piao L, Xu S, Meng X, Huang Z, Inoue A, Wang H, Yue X, Jin X, Nan Y, Shi GP, Murohara T, Umegaki H, Kuzuya M, Cheng XW. Cathepsin S activity controls chronic stress-induced muscle atrophy and dysfunction in mice. Cell Mol Life Sci 2023; 80:254. [PMID: 37589754 PMCID: PMC10435624 DOI: 10.1007/s00018-023-04888-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 06/06/2023] [Accepted: 07/17/2023] [Indexed: 08/18/2023]
Abstract
Exposure to chronic psychological stress (CPS) is an intractable risk factor for inflammatory and metabolic diseases. Lysosomal cysteinyl cathepsins play an important role in human pathobiology. Given that cathepsin S (CTSS) is upregulated in the stressed vascular and adipose tissues, we investigated whether CTSS participates in chronic stress-induced skeletal muscle mass loss and dysfunction, with a special focus on muscle protein metabolic imbalance and apoptosis. Eight-week-old male wildtype (CTSS+/+) and CTSS-knockout (CTSS-/-) mice were randomly assigned to non-stress and variable-stress groups. CTSS+/+ stressed mice showed significant losses of muscle mass, dysfunction, and fiber area, plus significant mitochondrial damage. In this setting, stressed muscle in CTSS+/+ mice presented harmful alterations in the levels of insulin receptor substrate 2 protein content (IRS-2), phospho-phosphatidylinositol 3-kinase, phospho-protein kinase B, and phospho-mammalian target of rapamycin, forkhead box-1, muscle RING-finger protein-1 protein, mitochondrial biogenesis-related peroxisome proliferator-activated receptor-γ coactivator-α, and apoptosis-related B-cell lymphoma 2 and cleaved caspase-3; these alterations were prevented by CTSS deletion. Pharmacological CTSS inhibition mimics its genetic deficiency-mediated muscle benefits. In C2C12 cells, CTSS silencing prevented stressed serum- and oxidative stress-induced IRS-2 protein reduction, loss of the myotube myosin heavy chain content, and apoptosis accompanied by a rectification of investigated molecular harmful changes; these changes were accelerated by CTSS overexpression. These findings demonstrated that CTSS plays a role in IRS-2-related protein anabolism and catabolism and cell apoptosis in stress-induced muscle wasting, suggesting a novel therapeutic strategy for the control of chronic stress-related muscle disease in mice under our experimental conditions by regulating CTSS activity.
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Affiliation(s)
- Ying Wan
- Department of Cardiology and Hypertension, Yanbian University Hospital, Yanji, 133000, Jilin, People's Republic of China
- Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, 133000, Jilin, People's Republic of China
| | - Limei Piao
- Department of Cardiology and Hypertension, Yanbian University Hospital, Yanji, 133000, Jilin, People's Republic of China.
- Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, 133000, Jilin, People's Republic of China.
| | - Shengnan Xu
- Department of Cardiology and Hypertension, Yanbian University Hospital, Yanji, 133000, Jilin, People's Republic of China
- Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, 133000, Jilin, People's Republic of China
| | - Xiangkun Meng
- Department of Vascular Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310000, Zhejiang, People's Republic of China
| | - Zhe Huang
- Department of Neurology, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, 807-8555, Japan
| | - Aiko Inoue
- Institute of Innovation for Future Society, Nagoya University Graduate School of Medicine, Nagoya, Aichiken, 4660855, Japan
| | - Hailong Wang
- Department of Cardiology and Hypertension, Yanbian University Hospital, Yanji, 133000, Jilin, People's Republic of China
- Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, 133000, Jilin, People's Republic of China
| | - Xueling Yue
- Department of Cardiology and Hypertension, Yanbian University Hospital, Yanji, 133000, Jilin, People's Republic of China
- Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, 133000, Jilin, People's Republic of China
| | - Xueying Jin
- Department of Cardiology and Hypertension, Yanbian University Hospital, Yanji, 133000, Jilin, People's Republic of China
- Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, 133000, Jilin, People's Republic of China
| | - Yongshan Nan
- Department of Anesthesiology, Yanbian University Hospital, 1327 Juzijie, Yanji, 133000, Jilin, People's Republic of China.
| | - Guo-Ping Shi
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Toyoaki Murohara
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Aichi-ken, 466-8550, Japan
| | - Hiroyuki Umegaki
- Institute of Innovation for Future Society, Nagoya University Graduate School of Medicine, Nagoya, Aichiken, 4660855, Japan
- Department of Community Healthcare and Geriatrics, Nagoya University Graduate School of Medicine, Nagoya, Aichi-ken, 466-8550, Japan
| | - Masafumi Kuzuya
- Department of Community Healthcare and Geriatrics, Nagoya University Graduate School of Medicine, Nagoya, Aichi-ken, 466-8550, Japan
- Meitetsu Hospital, Nagoya, Aichi, 451-8511, Japan
| | - Xian Wu Cheng
- Department of Cardiology and Hypertension, Yanbian University Hospital, Yanji, 133000, Jilin, People's Republic of China.
- Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, 133000, Jilin, People's Republic of China.
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Wan Y, Piao L, Xu S, Inoue A, Meng X, Lei Y, Huang Z, Wang H, Yue X, Shi GP, Kuzuya M, Cheng XW. Cathepsin S deficiency improves muscle mass loss and dysfunction via the modulation of protein metabolism in mice under pathological stress conditions. FASEB J 2023; 37:e23086. [PMID: 37428652 DOI: 10.1096/fj.202300395rrr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 06/19/2023] [Accepted: 06/27/2023] [Indexed: 07/12/2023]
Abstract
Cathepsin S (CTSS) is a widely expressed cysteinyl protease that has garnered attention because of its enzymatic and non-enzymatic functions under inflammatory and metabolic pathological conditions. Here, we examined whether CTSS participates in stress-related skeletal muscle mass loss and dysfunction, focusing on protein metabolic imbalance. Eight-week-old male wildtype (CTSS+/+ ) and CTSS-knockout (CTSS-/- ) mice were randomly assigned to non-stress and variable-stress groups for 2 weeks, and then processed for morphological and biochemical studies. Compared with non-stressed mice, stressed CTSS+/+ mice showed significant losses of muscle mass, muscle function, and muscle fiber area. In this setting, the stress-induced harmful changes in the levels of oxidative stress-related (gp91phox and p22phox ,), inflammation-related (SDF-1, CXCR4, IL-1β, TNF-α, MCP-1, ICAM-1, and VCAM-1), mitochondrial biogenesis-related (PPAR-γ and PGC-1α) genes and/or proteins and protein metabolism-related (p-PI3K, p-Akt, p-FoxO3α, MuRF-1, and MAFbx1) proteins; and these alterations were rectified by CTSS deletion. Metabolomic analysis revealed that stressed CTSS-/- mice exhibited a significant improvement in the levels of glutamine metabolism pathway products. Thus, these findings indicated that CTSS can control chronic stress-related skeletal muscle atrophy and dysfunction by modulating protein metabolic imbalance, and thus CTSS was suggested to be a promising new therapeutic target for chronic stress-related muscular diseases.
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Affiliation(s)
- Ying Wan
- Department of Cardiology and Hypertension, Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, P.R. China
- Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, P.R. China
| | - Limei Piao
- Department of Cardiology and Hypertension, Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, P.R. China
- Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, P.R. China
| | - Shengnan Xu
- Department of Cardiology and Hypertension, Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, P.R. China
- Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, P.R. China
| | - Aiko Inoue
- Institute of Nano-Life-Systems, Innovation for Future Society, Nagoya University Institutes of Innovation for Future Society, Nagoya, Japan
| | - Xiangkun Meng
- Department of Vascular Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yanna Lei
- Department of Cardiology and Hypertension, Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, P.R. China
- Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, P.R. China
| | - Zhe Huang
- Department of Neurology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Hailong Wang
- Department of Cardiology and Hypertension, Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, P.R. China
- Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, P.R. China
| | - Xueling Yue
- Department of Cardiology and Hypertension, Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, P.R. China
- Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, P.R. China
| | - Guo-Ping Shi
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Masafumi Kuzuya
- Institute of Nano-Life-Systems, Innovation for Future Society, Nagoya University Institutes of Innovation for Future Society, Nagoya, Japan
- Meitetsu Hospital, Nagoya, Japan
| | - Xian Wu Cheng
- Department of Cardiology and Hypertension, Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, P.R. China
- Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, P.R. China
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Mahr K, Anzengruber M, Hellerschmid A, Slezacek J, Hoi H, Subbiahdoss G, Gabor F, Lendvai ÁZ. Biocompatible polymeric microparticles serve as novel and reliable vehicles for exogenous hormone manipulations in passerines. Gen Comp Endocrinol 2023; 336:114234. [PMID: 36791824 DOI: 10.1016/j.ygcen.2023.114234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 02/02/2023] [Accepted: 02/09/2023] [Indexed: 02/15/2023]
Abstract
The administration of exogenous hormones emerged as an essential tool for field studies in endocrinology. However, working with wild animals remains challenging, because under field conditions not every available method meets the necessary requirements. Achieving a sustained elevation in hormone levels, while simultaneously minimising handling time and invasiveness of the procedure is a difficult task in field endocrinology. Facing this challenge, we have investigated the suitability of biocompatible polymeric microparticles, a novel method for drug-administration, as a tool to manipulate hormones in small songbirds. We chose the insulin-like growth factor-1 (IGF-1) as target hormone, because it receives great interest from the research community due to its important role in shaping life-history traits. Moreover, its short half-life and hydrophilic properties imply a major challenge in finding a suitable method to achieve a sustained, systemic long-term release. To study the release kinetics, we injected either IGF-1 loaded polylactic-co-glycolic acid (PLGA) microparticles or dispersion medium (control group) in the skin pocket of the interscapular region of captive bearded reedlings (Panurus biarmicus). We collected blood samples for 7 consecutive days plus an additional sampling period after two weeks and complemented these with an in vitro experiment. Our results show that in vitro, PLGA microparticles allowed a stable IGF-1 release for more than 15 days, following a burst release at the beginning of the measurement. In vivo, the initial burst was followed by a drop to still elevated levels in circulating IGF-1 until the effect vanished by 16 days post-treatment. This study is the first to describe the use of PLGA-microparticles as a novel tool for exogenous hormone administration in a small passerine. We suggest that this method is highly suitable to achieve the systemic long-term release of hydrophilic hormones with short half-life and reduces overall handling time, as it requires only one subcutaneous injection.
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Affiliation(s)
- Katharina Mahr
- Konrad Lorenz Institute of Ethology, Department of Interdisciplinary Life Sciences, University of Veterinary Medicine, Vienna, Austria.
| | - Maria Anzengruber
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology and Biopharmaceutics, University of Vienna, Austria
| | - Anna Hellerschmid
- Konrad Lorenz Institute of Ethology, Department of Interdisciplinary Life Sciences, University of Veterinary Medicine, Vienna, Austria
| | - Julia Slezacek
- Konrad Lorenz Institute of Ethology, Department of Interdisciplinary Life Sciences, University of Veterinary Medicine, Vienna, Austria
| | - Herbert Hoi
- Konrad Lorenz Institute of Ethology, Department of Interdisciplinary Life Sciences, University of Veterinary Medicine, Vienna, Austria
| | - Guruprakash Subbiahdoss
- Institute of Biologically Inspired Materials, Department of Nanobiotechnology, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
| | - Franz Gabor
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology and Biopharmaceutics, University of Vienna, Austria
| | - Ádám Z Lendvai
- Department of Evolutionary Zoology and Human Biology, University of Debrecen, 4032 Debrecen, Hungary
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8
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Aedo JE, Zuloaga R, Aravena-Canales D, Molina A, Valdés JA. Role of glucocorticoid and mineralocorticoid receptors in rainbow trout ( Oncorhynchus mykiss) skeletal muscle: A transcriptomic perspective of cortisol action. Front Physiol 2023; 13:1048008. [PMID: 36685183 PMCID: PMC9852899 DOI: 10.3389/fphys.2022.1048008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 12/22/2022] [Indexed: 01/07/2023] Open
Abstract
Cortisol is an essential regulator of neuroendocrine stress responses in teleost. Cortisol performs its effects through the modulation of glucocorticoid receptor (GR) and mineralocorticoid receptor (MR), activating gene expression. Until now the contribution of both receptors in the global transcriptional response in teleost skeletal muscle has not been explored. To understand in a comprehensive and global manner how GR and MR modulates the skeletal muscle transcriptomic response, we performed RNA-seq analysis. Juvenile rainbow trout (Oncorhynchus mykiss) pretreated with a suppressor of endogenous cortisol production were intraperitoneally injected with cortisol (10 mg/kg). We also included a treatment with mifepristone (GR antagonist) and eplerenone (MR antagonist) in the presence or absence of cortisol. cDNA libraries were constructed from the skeletal muscle of rainbow trout groups: vehicle, cortisol, mifepristone, eplerenone, mifepristone/cortisol and eplerenone/cortisol. RNA-seq analysis revealed that 135 transcripts were differentially expressed in cortisol vs. mifepristone/cortisol group, mainly associated to inflammatory response, ion transmembrane transport, and proteolysis. In the other hand, 68 transcripts were differentially expressed in cortisol vs. eplerenone/cortisol group, mainly associated to muscle contraction, and regulation of cell cycle. To validate these observations, we performed in vitro experiments using rainbow trout myotubes. In myotubes treated with cortisol, we found increased expression of cxcr2, c3, and clca3p mediated by GR, associated with inflammatory response, proteolysis, and ion transmembrane transport, respectively. Contrastingly, MR modulated the expression of myh2 and gadd45g mainly associated with muscle contraction and regulation of cell cycle, respectively. These results suggest that GR and MR have a differential participation in the physiological response to stress in teleost skeletal muscle.
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Affiliation(s)
- Jorge E. Aedo
- Departamento Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile,Interdisciplinary Center for Aquaculture Research (INCAR), Concepción, Chile
| | - Rodrigo Zuloaga
- Departamento Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile,Interdisciplinary Center for Aquaculture Research (INCAR), Concepción, Chile
| | - Daniela Aravena-Canales
- Departamento Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile,Interdisciplinary Center for Aquaculture Research (INCAR), Concepción, Chile
| | - Alfredo Molina
- Departamento Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile,Interdisciplinary Center for Aquaculture Research (INCAR), Concepción, Chile
| | - Juan Antonio Valdés
- Departamento Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile,Interdisciplinary Center for Aquaculture Research (INCAR), Concepción, Chile,*Correspondence: Juan Antonio Valdés,
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9
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Álvarez CA, Santana PA, Cárcamo CB, Cárdenas C, Morales-Lange B, Ramírez F, Valenzuela C, Boltaña S, Alcaíno J, Guzmán F, Mercado L. Effect of Fish Stock Density on Hormone Genes Expression from Brain and Gastrointestinal Tract of Salmo salar. Animals (Basel) 2022; 12:ani12091174. [PMID: 35565600 PMCID: PMC9102067 DOI: 10.3390/ani12091174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 02/01/2023] Open
Abstract
Simple Summary Various long-term stress conditions may exist in fish cultivation, damaging the physiological responses that regulate the fish growth and feed. Different signalers connect the brain with the gastrointestinal tract, including the perception of stress factors for the regulation of physiological responses. Here, we evaluated the effect of varying culture densities of Salmo salar post-smolt on the gene expression of some brain and gastrointestinal hormone signalers. We found that high stock densities could promote the levels of molecules associated with feed inhibition, which could be related to the stress pathway regulated by corticoids. Thus, the expression of these peptide hormones could be used as biological markers to improve production practices in fish aquaculture. Abstract A variety of long-term stress conditions may exist in fish cultivation, some of which are so severe that fish can no longer reestablish homeostasis. In teleost fish, the brain and gastrointestinal tract integrate signals that include the perception of stress factors regulating physiological responses, such as social stress by fish population density, where peripheral and central signals, such as peptide hormones, are the main regulators. Therefore, we proposed in this study to analyze the effect of different stock densities (SD) in the gene expression of brain neuropeptide Y (NPY) and calcitonin gene-related peptide (CGRP), together with the gastrointestinal peptide hormones leptin (Lep), vasointestinal peptide (VIP), and protachykinin-1 (Prk-1) in Salmo salar post-smolt. The coding sequence of S. salar VIP and Prk-1 precursors were firstly cloned and characterized. Then, the mRNA expression of these genes, together with the NPY, Lep, and CGRP genes, were evaluated in post-smolts kept at 11 Kg/m3, 20 Kg/m3, and 40 Kg/m3. At 14 days of culture, the brain CGRP and liver leptin mRNA levels increased three and tenfold in the post-smolt salmons kept at the highest SD, respectively. The high levels of leptin were kept during all the fish culture experiments. In addition, the highest expression of intestine VIP mRNA was obtained on Day 21 in the group of 40 Kg/m3 returning to baseline on Day 40. In terms of stress biochemical parameters, cortisol levels were increased in the 20 Kg/m3 and 40 Kg/m3 groups on Day 40 and were the highest in the 20 Kg/m3 group on Day 14. This study provides new insight into the gastrointestinal signals that could be affected by chronic stress induced by high stock density in fish farming. Thus, the expression of these peptide hormones could be used as molecular markers to improve production practices in fish aquaculture.
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Affiliation(s)
- Claudio A. Álvarez
- Laboratorio de Fisiología y Genética Marina, Centro de Estudios Avanzados en Zonas Áridas, Coquimbo 1781421, Chile;
- Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo 1781421, Chile
- Correspondence: (C.A.Á.); (L.M.)
| | - Paula A. Santana
- Instituto de Ciencias Químicas Aplicadas, Facultad de Ingeniería, Universidad Autónoma de Chile, San Miguel, Santiago 8910060, Chile;
| | - Claudia B. Cárcamo
- Laboratorio de Fisiología y Genética Marina, Centro de Estudios Avanzados en Zonas Áridas, Coquimbo 1781421, Chile;
- Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo 1781421, Chile
- Centro de Innovación Acuícola, Aquapacifico, Coquimbo 1781421, Chile
| | - Constanza Cárdenas
- Núcleo Biotecnología Curauma (NBC), Pontificia Universidad Católica de Valparaíso, Valparaíso 2374631, Chile; (C.C.); (F.G.)
| | - Byron Morales-Lange
- Grupo de Marcadores Inmunológicos, Laboratorio de Genética e Inmunología Molecular, Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso 2374631, Chile; (B.M.-L.); (F.R.); (C.V.)
| | - Felipe Ramírez
- Grupo de Marcadores Inmunológicos, Laboratorio de Genética e Inmunología Molecular, Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso 2374631, Chile; (B.M.-L.); (F.R.); (C.V.)
| | - Cristian Valenzuela
- Grupo de Marcadores Inmunológicos, Laboratorio de Genética e Inmunología Molecular, Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso 2374631, Chile; (B.M.-L.); (F.R.); (C.V.)
| | - Sebastián Boltaña
- Department of Oceanography, University of Concepción, Concepción 4070386, Chile;
| | - Javier Alcaíno
- AquaAdvise-Fundación Chile, Puerto Montt 5480000, Chile;
| | - Fanny Guzmán
- Núcleo Biotecnología Curauma (NBC), Pontificia Universidad Católica de Valparaíso, Valparaíso 2374631, Chile; (C.C.); (F.G.)
| | - Luis Mercado
- Núcleo Biotecnología Curauma (NBC), Pontificia Universidad Católica de Valparaíso, Valparaíso 2374631, Chile; (C.C.); (F.G.)
- Grupo de Marcadores Inmunológicos, Laboratorio de Genética e Inmunología Molecular, Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso 2374631, Chile; (B.M.-L.); (F.R.); (C.V.)
- Correspondence: (C.A.Á.); (L.M.)
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10
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Hamilton CM, Winter MJ, Margiotta-Casaluci L, Owen SF, Tyler CR. Are synthetic glucocorticoids in the aquatic environment a risk to fish? ENVIRONMENT INTERNATIONAL 2022; 162:107163. [PMID: 35240385 DOI: 10.1016/j.envint.2022.107163] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 05/27/2023]
Abstract
The glucocorticosteroid, or glucocorticoid (GC), system is largely conserved across vertebrates and plays a central role in numerous vital physiological processes including bone development, immunomodulation, and modification of glucose metabolism and the induction of stress-related behaviours. As a result of their wide-ranging actions, synthetic GCs are widely prescribed for numerous human and veterinary therapeutic purposes and consequently have been detected extensively within the aquatic environment. Synthetic GCs designed for humans are pharmacologically active in non-mammalian vertebrates, including fish, however they are generally detected in surface waters at low (ng/L) concentrations. In this review, we assess the potential environmental risk of synthetic GCs to fish by comparing available experimental data and effect levels in fish with those in mammals. We found the majority of compounds were predicted to have insignificant risk to fish, however some compounds were predicted to be of moderate and high risk to fish, although the dataset of compounds used for this analysis was small. Given the common mode of action and high level of inter-species target conservation exhibited amongst the GCs, we also give due consideration to the potential for mixture effects, which may be particularly significant when considering the potential for environmental impact from this class of pharmaceuticals. Finally, we also provide recommendations for further research to more fully understand the potential environmental impact of this relatively understudied group of commonly prescribed human and veterinary drugs.
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Affiliation(s)
- Charles M Hamilton
- Biosciences, University of Exeter, Geoffrey Pope Building, Stocker Road, Exeter, Devon EX4 4QD, UK
| | - Matthew J Winter
- Biosciences, University of Exeter, Geoffrey Pope Building, Stocker Road, Exeter, Devon EX4 4QD, UK
| | - Luigi Margiotta-Casaluci
- Department of Analytical, Environmental & Forensic Sciences, School of Cancer & Pharmaceutical Sciences, King's College London, London SE1 9NH, UK
| | - Stewart F Owen
- AstraZeneca, Global Environment, Macclesfield, Cheshire SK10 2NA, UK
| | - Charles R Tyler
- Biosciences, University of Exeter, Geoffrey Pope Building, Stocker Road, Exeter, Devon EX4 4QD, UK.
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11
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Cámara-Ruiz M, García-Beltrán JM, Cerezo IM, Balebona MC, Moriñigo MÁ, Esteban MÁ. Immunomodulation and skin microbiota perturbations during an episode of chronic stress in gilthead seabream. FISH & SHELLFISH IMMUNOLOGY 2022; 122:234-245. [PMID: 35172213 DOI: 10.1016/j.fsi.2022.02.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 02/02/2022] [Accepted: 02/07/2022] [Indexed: 06/14/2023]
Abstract
Fish stress is a major concern in the aquaculture industry. Many stressors coming from routine practices can predispose fish to compromised growth, immunity and overall health. This study focuses on the characterization of the skin microbiota using next generation sequencing (NGS) platform by targeting a genomic marker 16S and to determine growth performance and immune status of gilthead seabream (Sparus aurata) during an episode of chronic stress. Two groups were established: control group and chronically stressed group. Stressed fish were subjected to 1 min air exposure twice a week for 4 weeks. Results showed that stress negatively affected fish growth performance. Cellular and humoral systemic immunity remained unaffected while local immunity in skin was positively stimulated (total IgM and peroxidase). Skin mucus microbial composition showed significant differences especially after 14 days. Stressed fish showed a decrease in the abundance of the genera Acinetobacter, NS3a_marine_group and Pseudomonas, while Pseudoalteromonas and Marinagarivorans increased significantly. In conclusion, air exposure stress was associated with alterations in skin mucosal immunity and microbial composition that may have been beneficial to the host favoring adaptation to stress.
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Affiliation(s)
- María Cámara-Ruiz
- Immunobiology for Aquaculture Group, Department of Cell Biology and Histology. Faculty of Biology, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", University of Murcia, 30100, Murcia, Spain
| | - José María García-Beltrán
- Immunobiology for Aquaculture Group, Department of Cell Biology and Histology. Faculty of Biology, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", University of Murcia, 30100, Murcia, Spain
| | - Isabel M Cerezo
- Bioinformatics Unit, Supercomputing and Bioinnovation Center, Technological Park, University of Málaga, 29590, Málaga, Spain
| | - M Carmen Balebona
- Group of Prophylaxis and Biocontrol of Fish Diseases, Department of Microbiology, Campus de Teatinos s/n, University of Málaga, 29010, Málaga, Spain
| | - Miguel Ángel Moriñigo
- Group of Prophylaxis and Biocontrol of Fish Diseases, Department of Microbiology, Campus de Teatinos s/n, University of Málaga, 29010, Málaga, Spain
| | - María Ángeles Esteban
- Immunobiology for Aquaculture Group, Department of Cell Biology and Histology. Faculty of Biology, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", University of Murcia, 30100, Murcia, Spain.
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12
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Aedo J, Aravena-Canales D, Ruiz-Jarabo I, Oyarzún R, Molina A, Martínez-Rodríguez G, Valdés JA, Mancera JM. Differential Metabolic and Transcriptional Responses of Gilthead Seabream ( Sparus aurata) Administered with Cortisol or Cortisol-BSA. Animals (Basel) 2021; 11:ani11113310. [PMID: 34828041 PMCID: PMC8614361 DOI: 10.3390/ani11113310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/10/2021] [Accepted: 11/18/2021] [Indexed: 12/20/2022] Open
Abstract
Simple Summary Cortisol is a key stress hormone in teleosts. Cortisol exerts its effects through genomic—and membrane-initiated mechanisms, however, the role of the latter in long-term stress responses is unknown. Here, we treated Sparus aurata with cortisol or cortisol-BSA (exclusive inductor to membrane-initiated effects) to emulate a long-term stress situation. We found that cortisol, but not cortisol-BSA, promotes energy substrate mobilization in the liver, together with the regulation of metabolism-related genes. We suggest that genomic cortisol actions exclusively participate in metabolic responses during prolonged treatment using cortisol in S. aurata. This study contributes to the current knowledge on cortisol’s involvement in stress responses in fish. Abstract Cortisol is the main glucocorticoid hormone promoting compensatory metabolic responses of stress in teleosts. This hormone acts through genomic and membrane-initiated actions to exert its functions inside the cell. Experimental approaches, using exogenous cortisol administration, confirm the role of this hormone during short (minutes to hours)- and long-term (days to weeks) responses to stress. The role of membrane-initiated cortisol signaling during long-term responses has been recently explored. In this study, Sparus aurata were intraperitoneally injected with coconut oil alone or coconut oil containing cortisol, cortisol-BSA, or BSA. After 3 days of treatment, plasma, liver, and skeletal muscle were extracted. Plasma cortisol, as well as metabolic indicators in the plasma and tissues collected, and metabolism-related gene expression, were measured. Our results showed that artificially increased plasma cortisol levels in S. aurata enhanced plasma glucose and triacylglycerols values as well as hepatic substrate energy mobilization. Additionally, cortisol stimulated hepatic carbohydrates metabolism, as seen by the increased expression of metabolism-related genes. All of these responses, observed in cortisol-administered fish, were not detected by replicating the same protocol and instead using cortisol-BSA, which exclusively induces membrane-initiated effects. Therefore, we suggest that after three days of cortisol administration, only genomic actions are involved in the metabolic responses in S. aurata.
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Affiliation(s)
- Jorge Aedo
- Department of Biological Sciences, Faculty of Life Sciences, Andres Bello University, Santiago 8320000, Chile; (J.A.); (D.A.-C.); (A.M.)
- Interdisciplinary Center for Aquaculture Research (INCAR), Concepción 4030000, Chile
| | - Daniela Aravena-Canales
- Department of Biological Sciences, Faculty of Life Sciences, Andres Bello University, Santiago 8320000, Chile; (J.A.); (D.A.-C.); (A.M.)
- Interdisciplinary Center for Aquaculture Research (INCAR), Concepción 4030000, Chile
| | - Ignacio Ruiz-Jarabo
- Department of Biology, Faculty of Marine and Environmental Sciences, Instituto Universitario de Investigación Marina (INMAR), Campus de Excelencia Internacional del Mar (CEI-MAR), University of Cádiz, 11519 Puerto Real, Spain; (I.R.-J.); (J.M.M.)
- Department of Animal Physiology, Faculty of Biology, University Complutense of Madrid, 28040 Madrid, Spain
| | - Ricardo Oyarzún
- Institute of Marine and Limnological Sciences, Faculty of Sciences, University Austral of Chile, Valdivia 5110652, Chile;
| | - Alfredo Molina
- Department of Biological Sciences, Faculty of Life Sciences, Andres Bello University, Santiago 8320000, Chile; (J.A.); (D.A.-C.); (A.M.)
- Interdisciplinary Center for Aquaculture Research (INCAR), Concepción 4030000, Chile
| | - Gonzalo Martínez-Rodríguez
- Department of Marine Biology and Aquaculture, Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), 11519 Puerto Real, Spain;
| | - Juan Antonio Valdés
- Department of Biological Sciences, Faculty of Life Sciences, Andres Bello University, Santiago 8320000, Chile; (J.A.); (D.A.-C.); (A.M.)
- Interdisciplinary Center for Aquaculture Research (INCAR), Concepción 4030000, Chile
- Correspondence: ; Tel.: +56-2661-8363; Fax: +56-2661-8415
| | - Juan Miguel Mancera
- Department of Biology, Faculty of Marine and Environmental Sciences, Instituto Universitario de Investigación Marina (INMAR), Campus de Excelencia Internacional del Mar (CEI-MAR), University of Cádiz, 11519 Puerto Real, Spain; (I.R.-J.); (J.M.M.)
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13
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Transcriptomic profiling of Gh/Igf system reveals a prompted tissue-specific differentiation and novel hypoxia responsive genes in gilthead sea bream. Sci Rep 2021; 11:16466. [PMID: 34385497 PMCID: PMC8360970 DOI: 10.1038/s41598-021-95408-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 07/19/2021] [Indexed: 12/16/2022] Open
Abstract
A customized PCR-array was used for the simultaneous gene expression of the Gh/Igf system and related markers of muscle growth, and lipid and energy metabolism during early life stages of gilthead sea bream (60–127 days posthatching). Also, transcriptional reprogramming by mild hypoxia was assessed in fingerling fish with different history trajectories on O2 availability during the same time window. In normoxic fish, the expression of almost all the genes in the array varied over time with a prompted liver and muscle tissue-specific differentiation, which also revealed temporal changes in the relative expression of markers of the full gilthead sea bream repertoire of Gh receptors, Igfs and Igf-binding proteins. Results supported a different contribution through development of ghr and igf subtypes on the type of action of GH via systemic or direct effects at the local tissue level. This was extensive to Igfbp1/2/4 and Igfbp3/5/6 clades that clearly evolved through development as hepatic and muscle Igfbp subtypes, respectively. This trade-off is however very plastic to cope changes in the environment, and ghr1 and igfbp1/3/4/5 emerged as hypoxic imprinting genes during critical early developmental windows leading to recognize individuals with different history trajectories of oxygen availability and metabolic capabilities later in life.
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14
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Vargas-Chacoff L, Regish AM, Weinstock A, Björnsson BT, McCormick SD. Effects of long-term cortisol treatment on growth and osmoregulation of Atlantic salmon and brook trout. Gen Comp Endocrinol 2021; 308:113769. [PMID: 33794274 DOI: 10.1016/j.ygcen.2021.113769] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 03/14/2021] [Accepted: 03/25/2021] [Indexed: 12/23/2022]
Abstract
Cortisol is the final product of the hypothalamic-pituitary-interrenal (HPI) axis and acts as a gluco- and mineralo-corticoid in fish. Long-term elevations of cortisol have been linked to reduced growth in fishes, but the mechanism(s) and relative sensitivities of species are still unclear. We carried out experiments to examine the relative effects of cortisol on growth and gill NKA activity in two salmonids: Atlantic salmon (Salmo salar) and brook trout (Salvelinus fontinalis). Treatment with intraperitoneal cortisol implants for 30 days resulted in reduced growth in both species, but with greater sensitivity to cortisol in brook trout. Gill NKA activity was strongly upregulated by cortisol in Atlantic salmon, and weakly upregulated in brook trout but with no statistically significant effect. Cortisol treatment resulted in reduced plasma levels of insulin-like growth factor I and increased plasma growth hormone levels in Atlantic salmon. Our results demonstrate that there are species differences in the sensitivity of growth and osmoregulation to cortisol, even among species in the same family (Salmonidae).
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Affiliation(s)
- L Vargas-Chacoff
- Instituto de Ciencias Marinas y Limnológicas, Laboratorio de Fisiología de Peces, Universidad Austral de Chile, Valdivia, Chile; U.S. Geological Survey, Eastern Ecological Science Center, Conte Research Laboratory, Turners Falls, MA, USA; Fondap-IDEAL, Universidad Austral de Chile, Valdivia, Chile.
| | - A M Regish
- U.S. Geological Survey, Eastern Ecological Science Center, Conte Research Laboratory, Turners Falls, MA, USA
| | - A Weinstock
- U.S. Geological Survey, Eastern Ecological Science Center, Conte Research Laboratory, Turners Falls, MA, USA
| | - B Th Björnsson
- Fish Endocrinology Laboratory, Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - S D McCormick
- U.S. Geological Survey, Eastern Ecological Science Center, Conte Research Laboratory, Turners Falls, MA, USA; Department of Biology, University of Massachusetts, Amherst, MA 01003, USA
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15
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Carrizo V, Valenzuela CA, Zuloaga R, Aros C, Altamirano C, Valdés JA, Molina A. Effect of cortisol on the immune-like response of rainbow trout (Oncorhynchus mykiss) myotubes challenged with Piscirickettsia salmonis. Vet Immunol Immunopathol 2021; 237:110240. [PMID: 33962313 DOI: 10.1016/j.vetimm.2021.110240] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 03/31/2021] [Accepted: 04/02/2021] [Indexed: 12/28/2022]
Abstract
Salmonids are a species of high commercial value in Chilean aquaculture, where muscle is the final product of the industry. Fish can be affected by stress during intensive cultures, increasing susceptibility to infections. Recently, we reported that muscle is an important focus of immune reactions. However, studies have shown the immunosuppressive effect of stress only in lymphoid organs, and few studies have been conducted on muscle and immunity. Hence, we determine the effects of cortisol on the immune-like response of fish myotubes challenged with Piscirickettsia salmonis by three trials. First, rainbow trout primary culture of muscle was cultured and treated with cortisol (100 ng/mL) for 3 and 4 h. Second, myotubes were challenged with P. salmonis (MOI 50) for 4, 6 and 8 h. And third, muscle cell cultures were pretreated with cortisol and then challenged with P. salmonis. The mRNA levels of glucocorticoid pathway and innate immunity were evaluated by qPCR. Cortisol increased the klf15 levels and downregulated the innate immune-related tlr5m gene and antimicrobial peptides. P. salmonis challenge upregulated several immune-related genes. Finally, cortisol pretreatment followed by P. salmonis challenge differentially modulated stress- and immune-related genes. These data suggest that fish muscle cells possess an intrinsic immune response and are differentially regulated by cortisol, which could lead to bacterial outbreaks in muscle under stress conditions.
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Affiliation(s)
- Victoria Carrizo
- Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, 8370146, Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000, Concepción, Chile.
| | - Cristián A Valenzuela
- Grupo de Marcadores Inmunológicos, Laboratorio de Genética e Inmunología Molecular, Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile.
| | - Rodrigo Zuloaga
- Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, 8370146, Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000, Concepción, Chile.
| | - Camila Aros
- Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, 8370146, Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000, Concepción, Chile; Laboratorio de Cultivos Celulares, Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso, 2362803, Valparaíso, Chile.
| | - Claudia Altamirano
- Laboratorio de Cultivos Celulares, Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso, 2362803, Valparaíso, Chile.
| | - Juan A Valdés
- Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, 8370146, Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000, Concepción, Chile; Universidad Andres Bello, Centro de Investigación Marina Quintay (CIMARQ), 2340000, Valparaíso, Chile.
| | - Alfredo Molina
- Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, 8370146, Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000, Concepción, Chile; Universidad Andres Bello, Centro de Investigación Marina Quintay (CIMARQ), 2340000, Valparaíso, Chile.
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16
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Chronic social stress alters protein metabolism in juvenile rainbow trout, Oncorhynchus mykiss. J Comp Physiol B 2021; 191:517-530. [PMID: 33712903 PMCID: PMC8043953 DOI: 10.1007/s00360-021-01340-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 11/09/2020] [Accepted: 01/13/2021] [Indexed: 01/21/2023]
Abstract
When confined in pairs, juvenile rainbow trout (Oncorhynchus mykiss) form dominance hierarchies in which subordinate fish exhibit characteristic physiological changes including reduced growth rates and chronically elevated plasma cortisol concentrations. We hypothesized that alterations in protein metabolism contribute to the reduced growth rate of socially stressed trout, and predicted that subordinate trout would exhibit reduced rates of protein synthesis coupled with increases in protein degradation. Protein metabolism was assessed in dominant and subordinate fish after 4 days of social interaction, and in fish that were separated after 4 days of interaction for a 4 days recovery period, to determine whether effects on protein metabolism recovered when social stress was alleviated. Protein metabolism was assessed in liver and white muscle by measuring the fractional rate of protein synthesis and markers of protein degradation. In the white muscle of subordinate fish, protein synthesis was inhibited and activities of the ubiquitin-proteasome pathway (UPP) and the autophagy lysosomal system (ALS) were elevated. By contrast, the liver of subordinate fish exhibited increased rates of protein synthesis and activation of the ALS. When allowed to recover from chronic social stress for 4 days, differences in protein metabolism observed in white muscle of subordinate fish during the interaction period disappeared. In liver, protein synthesis returned to baseline levels during recovery from social stress, but markers of protein degradation did not. Collectively, these data support the hypothesis that inhibition of muscle protein synthesis coupled with increases in muscle protein breakdown contribute to the reduced growth rates of subordinate rainbow trout.
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17
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Breves JP, Springer-Miller RH, Chenoweth DA, Paskavitz AL, Chang AYH, Regish AM, Einarsdottir IE, Björnsson BT, McCormick SD. Cortisol regulates insulin-like growth-factor binding protein (igfbp) gene expression in Atlantic salmon parr. Mol Cell Endocrinol 2020; 518:110989. [PMID: 32835784 DOI: 10.1016/j.mce.2020.110989] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/10/2020] [Accepted: 08/11/2020] [Indexed: 02/08/2023]
Abstract
The growth hormone (Gh)/insulin-like growth-factor (Igf)/Igf binding protein (Igfbp) system regulates growth and osmoregulation in salmonid fishes, but how this system interacts with other endocrine systems is largely unknown. Given the well-documented consequences of mounting a glucocorticoid stress response on growth, we hypothesized that cortisol inhibits anabolic processes by modulating the expression of hepatic igfbp mRNAs. Atlantic salmon (Salmo salar) parr were implanted intraperitoneally with cortisol implants (0, 10, and 40 μg g-1 body weight) and sampled after 3 or 14 days. Cortisol elicited a dose-dependent reduction in specific growth rate (SGR) after 14 days. While plasma Gh and Igf1 levels were unchanged, hepatic igf1 mRNA was diminished and hepatic igfbp1b1 and -1b2 were stimulated by the high cortisol dose. Plasma Igf1 was positively correlated with SGR at 14 days. Hepatic gh receptor (ghr), igfbp1a, -2a, -2b1, and -2b2 levels were not impacted by cortisol. Muscle igf2, but not igf1 or ghr, levels were stimulated at 3 days by the high cortisol dose. As both cortisol and the Gh/Igf axis promote seawater (SW) tolerance, and particular igfbps respond to SW exposure, we also assessed whether cortisol coordinates the expression of branchial igfbps and genes associated with ion transport. Cortisol stimulated branchial igfbp5b2 levels in parallel with Na+/K+-ATPase (NKA) activity and nka-α1b, Na+/K+/2Cl--cotransporter 1 (nkcc1), and cystic fibrosis transmembrane regulator 1 (cftr1) mRNA levels. The collective results indicate that cortisol modulates the growth of juvenile salmon via the regulation of hepatic igfbp1s whereas no clear links between cortisol and branchial igfbps previously shown to be salinity-responsive could be established.
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Affiliation(s)
- J P Breves
- Department of Biology, Skidmore College, 815 N. Broadway, Saratoga Springs, NY, 12866, USA.
| | - R H Springer-Miller
- Department of Biology, Skidmore College, 815 N. Broadway, Saratoga Springs, NY, 12866, USA
| | - D A Chenoweth
- Department of Biology, Skidmore College, 815 N. Broadway, Saratoga Springs, NY, 12866, USA
| | - A L Paskavitz
- Department of Biology, Skidmore College, 815 N. Broadway, Saratoga Springs, NY, 12866, USA
| | - A Y H Chang
- Department of Biology, Skidmore College, 815 N. Broadway, Saratoga Springs, NY, 12866, USA
| | - A M Regish
- U.S. Geological Survey, Leetown Science Center, Conte Anadromous Fish Research Laboratory, One Migratory Way, Turners Falls, MA, 01376, USA
| | - I E Einarsdottir
- Fish Endocrinology Laboratory, Department of Biological and Environmental Sciences, University of Gothenburg, Box 463 SE, 40530, Göteborg, Sweden
| | - B Th Björnsson
- Fish Endocrinology Laboratory, Department of Biological and Environmental Sciences, University of Gothenburg, Box 463 SE, 40530, Göteborg, Sweden
| | - S D McCormick
- U.S. Geological Survey, Leetown Science Center, Conte Anadromous Fish Research Laboratory, One Migratory Way, Turners Falls, MA, 01376, USA
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18
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Valenzuela CA, Ponce C, Zuloaga R, González P, Avendaño-Herrera R, Valdés JA, Molina A. Effects of crowding on the three main proteolytic mechanisms of skeletal muscle in rainbow trout (Oncorhynchus mykiss). BMC Vet Res 2020; 16:294. [PMID: 32799856 PMCID: PMC7429773 DOI: 10.1186/s12917-020-02518-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 08/07/2020] [Indexed: 02/07/2023] Open
Abstract
Background Skeletal muscle is one of the tissues most affected by stress conditions. The protein degradation in this tissue is vital for the supply of energy mediated by different proteolytic pathways such as the ubiquitin-proteasome (UPS), autophagy-lysosome (ALS) and the calpain/calpastatin system (CCS). Nevertheless, the regulation of this proteolytic axis under stress conditions is not yet completely clear. Chile is the main producer of rainbow trout (Oncorhynchus mykiss) in the world. This intensive fish farming has resulted in growing problems as crowding and stress are one of the major problems in the freshwater stage. In this context, we evaluated the crowding effect in juvenile rainbow trout kept in high stocking density (30 kg/m3) for 15, 45 and 60 days, using a control group of fish (10 kg/m3). Results Plasmatic cortisol and glucose were evaluated by enzyme immunoassay. The mRNA levels of stress-related genes (gr1, gr2, mr, hsp70, klf15 and redd1), markers of the UPS (atrogin1 and murf1) and CCS (capn1, capn1, cast-l and cast-s) were evaluated using qPCR. ALS (LC3-I/II and P62/SQSTM1) and growth markers (4E-BP1 and ERK) were measured by Western blot analysis. The cortisol levels increased concomitantly with weight loss at 45 days of crowding. The UPS alone was upregulated at 15 days of high stocking density, while ALS activation was observed at 60 days. However, the CCS was inactivated during the entire trial. Conclusion All these data suggest that stress conditions, such as crowding, promote muscle degradation in a time-dependent manner through the upregulation of the UPS at early stages of chronic stress and activation of the ALS in long-term stress, while the CCS is strongly inhibited by stress conditions in the rainbow trout muscle farmed during freshwater stage. Our descriptive study will allow perform functional analysis to determine, in a more detailed way, the effect of stress on skeletal muscle physiology as well as in the animal welfare in rainbow trout. Moreover, it is the first step to elucidate the optimal crop density in the freshwater stage and improve the standards of Chilean aquaculture.
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Affiliation(s)
- Cristián A Valenzuela
- Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, Universidad Andrés Bello, 8370146, Santiago, Chile.,Laboratorio de Genética e Inmunología Molecular, Instituto de Biología, Pontificia Universidad Católica de Valparaíso (PUCV), Valparaíso, Chile
| | - Claudia Ponce
- Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, Universidad Andrés Bello, 8370146, Santiago, Chile
| | - Rodrigo Zuloaga
- Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, Universidad Andrés Bello, 8370146, Santiago, Chile.,Interdisciplinary Center for Aquaculture Research (INCAR), 4030000, Concepción, Chile
| | - Pamela González
- Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, Universidad Andrés Bello, 8370146, Santiago, Chile.,Interdisciplinary Center for Aquaculture Research (INCAR), 4030000, Concepción, Chile
| | - Ruben Avendaño-Herrera
- Interdisciplinary Center for Aquaculture Research (INCAR), 4030000, Concepción, Chile. .,Laboratorio de Patología de Organismos Acuáticos y Biotecnología Acuícola, Universidad Andrés Bello, 2520000, Viña del Mar, Chile. .,Centro de Investigación Marina Quintay (CIMARQ), Universidad Andrés Bello, 2340000, Quintay, Chile.
| | - Juan A Valdés
- Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, Universidad Andrés Bello, 8370146, Santiago, Chile.,Interdisciplinary Center for Aquaculture Research (INCAR), 4030000, Concepción, Chile.,Centro de Investigación Marina Quintay (CIMARQ), Universidad Andrés Bello, 2340000, Quintay, Chile
| | - Alfredo Molina
- Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, Universidad Andrés Bello, 8370146, Santiago, Chile. .,Interdisciplinary Center for Aquaculture Research (INCAR), 4030000, Concepción, Chile. .,Centro de Investigación Marina Quintay (CIMARQ), Universidad Andrés Bello, 2340000, Quintay, Chile.
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19
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Aidos L, Cafiso A, Bertotto D, Bazzocchi C, Radaelli G, Di Giancamillo A. How different rearing temperatures affect growth and stress status of Siberian sturgeon Acipenser baerii larvae. JOURNAL OF FISH BIOLOGY 2020; 96:913-924. [PMID: 32043574 DOI: 10.1111/jfb.14280] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 12/11/2019] [Accepted: 02/08/2020] [Indexed: 06/10/2023]
Abstract
Environmental temperature is one of the critical factors affecting fish development. The aim of this study was to examine the impact of three different rearing temperatures (16, 19 and 22°C) throughout the endogenous feeding phase of the Siberian sturgeon Acipenser baerii. This was performed by assessing (a) larval survival and growth; (b) immunofluorescence localization and expression of genes involved in muscle development and growth - myog and Igf1; and (c) stress status through the expression of thermal stress genes - Hsp70, Hsp90α and Hsp90β - and whole body cortisol. Overall survival rate and larval weight did not differ significantly across temperatures. Larvae subjected to 22°C showed faster absorption of the yolk-sac than larvae subjected to 19 or 16°C. Both at schooling and at the end of the trial, larvae reared at 16°C showed significantly lower levels of cortisol than those reared at 19 or 22°C. IGF-1 immunopositivity was particularly evident in red muscle at schooling stage in all temperatures. The expression of all Hsps as well as the myog and Igf1 genes was statistically higher in larvae reared at 16°C but limited to the schooling stage. Cortisol levels were higher in larvae at 22°C, probably because of the higher metabolism demand rather than a stress response. The observed apparent incongruity between Hsps gene expression and cortisol levels could be due to the lack of a mature system. Further studies are necessary, especially regarding the exogenous feeding phase, in order to better understand if this species is actually sensitive to thermal stress.
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Affiliation(s)
- Lucia Aidos
- Department of Veterinary Medicine, Università degli Studi di Milano, Lodi, Italy
| | - Alessandra Cafiso
- Department of Veterinary Medicine, Università degli Studi di Milano, Lodi, Italy
| | - Daniela Bertotto
- Department of Comparative Biomedicine and Food Science, Università degli Studi di Padova, Padua, Italy
| | - Chiara Bazzocchi
- Department of Veterinary Medicine, Università degli Studi di Milano, Lodi, Italy
- Pediatric Clinical Research Center "Romeo ed Enrica Invernizzi", Università degli Studi di Milano, Milan, Italy
- Coordinated Research Center "EpiSoMI", Università degli Studi di Milano, Milan, Italy
| | - Giuseppe Radaelli
- Department of Comparative Biomedicine and Food Science, Università degli Studi di Padova, Padua, Italy
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20
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Aedo JE, Zuloaga R, Bastías-Molina M, Meneses C, Boltaña S, Molina A, Valdés JA. Early transcriptomic responses associated with the membrane-initiated action of cortisol in the skeletal muscle of rainbow trout (Oncorhynchus mykiss). Physiol Genomics 2019; 51:596-606. [DOI: 10.1152/physiolgenomics.00042.2019] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Cortisol is a critical neuroendocrine regulator of the stress response in fish. Cortisol practically affects all tissues by interacting with an intracellular receptor and modulating target gene expression. However, cortisol also interacts with components of the plasma membrane in a nongenomic process that activates rapid signaling. Until now, the implication of this novel cortisol signaling for the global transcriptional response has not been explored. In the present work, we evaluated the effects of the membrane-initiated actions of cortisol on the in vivo transcriptome of rainbow trout ( Oncorhynchus mykiss) skeletal muscle. RNA-Seq analyses were performed to examine the transcriptomic changes in rainbow trout stimulated by physiological concentrations of cortisol and cortisol coupled with bovine serum albumin (cortisol-BSA), a membrane-impermeable analog of cortisol. A total of 660 million paired-ends reads were generated. Reads mapped onto the reference genome revealed that 1,737; 897; and 1,012 transcripts were differentially expressed after 1, 3, and 9 h of cortisol-BSA treatment, respectively. Gene Ontology analysis showed that this novel action of cortisol modulates several biological processes, such as mRNA processing, ubiquitin-dependent protein catabolic processes, and transcription regulation. In addition, a KEGG analysis revealed that focal adhesion was the main signaling pathway that was upregulated at all the times tested. Taking these results together, we propose that the membrane-initiated cortisol action contributes significantly in the regulation of stress-mediated gene expression.
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Affiliation(s)
- Jorge E. Aedo
- Universidad Andrés Bello, Departamento Ciencias Biológicas, Facultad de Ciencias de la Vida, Santiago, Chile
- Interdisciplinary Center for Aquaculture Research (INCAR), Concepción, Chile
| | - Rodrigo Zuloaga
- Universidad Andrés Bello, Departamento Ciencias Biológicas, Facultad de Ciencias de la Vida, Santiago, Chile
| | - Macarena Bastías-Molina
- Universidad Andrés Bello, Centro de Biotecnología Vegetal, FONDAP Center for Genome Regulation, Facultad de Ciencias de la Vida, Santiago, Chile
| | - Claudio Meneses
- Universidad Andrés Bello, Centro de Biotecnología Vegetal, FONDAP Center for Genome Regulation, Facultad de Ciencias de la Vida, Santiago, Chile
| | - Sebastián Boltaña
- Interdisciplinary Center for Aquaculture Research (INCAR), Concepción, Chile
- Universidad de Concepción, ThermoFish Lab, Biotechnology Center, Concepción, Chile
| | - Alfredo Molina
- Universidad Andrés Bello, Departamento Ciencias Biológicas, Facultad de Ciencias de la Vida, Santiago, Chile
- Universidad de Concepción, ThermoFish Lab, Biotechnology Center, Concepción, Chile
| | - Juan Antonio Valdés
- Universidad Andrés Bello, Departamento Ciencias Biológicas, Facultad de Ciencias de la Vida, Santiago, Chile
- Universidad de Concepción, ThermoFish Lab, Biotechnology Center, Concepción, Chile
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21
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Transcriptomic response of rainbow trout (Oncorhynchus mykiss) skeletal muscle to Flavobacterium psychrophilum. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2019; 31:100596. [PMID: 31174158 DOI: 10.1016/j.cbd.2019.100596] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 05/22/2019] [Accepted: 05/24/2019] [Indexed: 01/12/2023]
Abstract
Flavobacterium psychrophilum is the etiologic agent of rainbow trout fry syndrome (RTFS). This pathogen infects a wide variety of salmonid species during freshwater stages, causing significant losses in the aquaculture industry. Rainbow trout (Oncorhynchus mykiss) infected with F. psychrophilum, presents as the main external clinical sign ulcerative lesions and necrotic myositis in skeletal muscle. We previously reported the in vitro cytotoxic activity of F. psychrophilum on rainbow trout myoblast, however little is known about the molecular mechanisms underlying the in vivo pathogenesis in skeletal muscle. In this study, we examined the transcriptomic profiles of skeletal muscle tissue of rainbow trout intraperitoneally challenged with low infection dose of F. psychrophilum. Using high-throughput RNA-seq, we found that 233 transcripts were up-regulated, mostly associated to ubiquitin mediated proteolysis and apoptosis. Conversely, 189 transcripts were down-regulated, associated to skeletal muscle contraction. This molecular signature was consistent with creatine kinase activity in plasma and oxidative damage in skeletal muscle. Moreover, the increased caspase activity suggests as a whole skeletal muscle atrophy induced by F. psychrophilum. This study offers an integrative analysis of the skeletal muscle response to F. psychrophilum infection and reveals unknown aspects of its pathogenesis in rainbow trout.
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22
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Valenzuela CA, Escobar-Aguirre S, Zuloaga R, Vera-Tobar T, Mercado L, Björnsson BT, Valdés JA, Molina A. Stocking density induces differential expression of immune-related genes in skeletal muscle and head kidney of fine flounder (Paralichthys adspersus). Vet Immunol Immunopathol 2019; 210:23-27. [PMID: 30947976 DOI: 10.1016/j.vetimm.2019.03.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 03/08/2019] [Accepted: 03/09/2019] [Indexed: 10/27/2022]
Abstract
Immunity can be modulated by different internal and external factors, being stress one of the most important. However, the stress effects on the immunocompetence of the skeletal muscle has not been studied in detail in earlier vertebrates. Here, we examine the effect of chronic (4 and 7 weeks) crowding stress on the immunocompetence of skeletal muscle and head kidney in the fine flounder (Paralichthys adspersus). Corticosteroid receptor transcript levels and their target genes; pro-inflammatory cytokines, and Toll-, NOD-, and RIG-like receptors were quantified by qPCR. The results indicate that chronic stress down-regulates the expression of these genes in muscle, compromising skeletal muscle immunocompetence, while the expression of these genes is upregulated in head kidney after seven weeks of crowding stress. The data suggests that chronic stress modulates the expression of these immune-related genes in a tissue-specific manner.
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Affiliation(s)
- Cristián A Valenzuela
- Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, 8370146 Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000 Concepcion, Chile.
| | - Sebastián Escobar-Aguirre
- Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, 7820436 Santiago, Chile.
| | - Rodrigo Zuloaga
- Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, 8370146 Santiago, Chile.
| | - Tamara Vera-Tobar
- Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, 8370146 Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000 Concepcion, Chile.
| | - Luis Mercado
- Laboratorio de Genética e Inmunología Molecular, Instituto de Biología, Pontificia Universidad Católica de Valparaíso, 2340000 Valparaíso, Chile.
| | - Björn Thrandur Björnsson
- Fish Endocrinology Laboratory, Department of Biological and Environmental Sciences, University of Gothenburg, 40530 Gothenburg, Sweden.
| | - Juan A Valdés
- Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, 8370146 Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000 Concepcion, Chile; Universidad Andres Bello, Centro de Investigación Marina Quintay (CIMARQ), 2340000 Valparaíso, Chile.
| | - Alfredo Molina
- Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, 8370146 Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000 Concepcion, Chile; Universidad Andres Bello, Centro de Investigación Marina Quintay (CIMARQ), 2340000 Valparaíso, Chile.
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23
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Schoenle LA, Zimmer C, Vitousek MN. Understanding Context Dependence in Glucocorticoid-Fitness Relationships: The Role of the Nature of the Challenge, the Intensity and Frequency of Stressors, and Life History. Integr Comp Biol 2019; 58:777-789. [PMID: 29889246 DOI: 10.1093/icb/icy046] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
It has been well-established that there is variation in the strength and direction of the relationship between circulating glucocorticoids (GCs) and fitness. When studies demonstrate such variation or the direction of the GC-fitness relationship is unexpected, the results are often attributed to context-dependency. However, descriptors of context can be vague (e.g., "environmental context") and few studies explicitly test how the optimal hypothalamic-pituitary-adrenal (HPA) axis response to stressors varies across specific contexts. Although existing hypotheses create a strong foundation for understanding GC-fitness relationships, many do not provide explicit predictions of how, when, and why the relationships will change. Here, we discuss three broad factors which we expect to shape the relationships between HPA axis activity and fitness metrics: (1) whether the HPA axis-mediated response matches the challenge, (2) the intensity and frequency of challenges, and (3) life history. We also make predictions for how these factors might affect GC-fitness relationships and discuss ways to test these predictions. Observational studies, experimental manipulations of context, and large-scale cross-species comparisons will be critical to understanding the observed variation in GC-fitness relationships.
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Affiliation(s)
- Laura A Schoenle
- Department of Global Health, University of South Florida, Tampa, FL 33620, USA.,Department of Biology, Hamilton College, Clinton, NY 13323, USA
| | - Cedric Zimmer
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, USA
| | - Maren N Vitousek
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, USA.,Cornell Lab of Ornithology, Ithaca, NY 14850, USA
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24
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Martinez A, Lopez N, Gonzalez C, Hetz C. Targeting of the unfolded protein response (UPR) as therapy for Parkinson's disease. Biol Cell 2019; 111:161-168. [PMID: 30860281 DOI: 10.1111/boc.201800068] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 01/14/2019] [Accepted: 01/31/2019] [Indexed: 01/04/2023]
Abstract
Parkinson's disease is the second most common neurodegenerative disorder, leading to the progressive decline of motor control due to the loss of dopaminergic neurons in the substantia nigra pars compacta. At the molecular level, Parkinson's disease share common molecular signatures with most neurodegenerative diseases including the accumulation of misfolded proteins in the brain. Alteration in the buffering capacity of the proteostasis network during aging is proposed as one of the triggering steps leading to abnormal protein aggregation in this disease, highlighting disturbances in the function of the endoplasmic reticulum (ER). The ER is the main subcellular compartment involved in protein folding and quality control. ER stress triggers a signalling reaction known as the unfolded protein response (UPR), which aims restoring proteostasis through the induction of adaptive programs or the activation of cell death pathways when damage is chronic and cannot be repaired. Here, we overview most evidence linking ER stress to Parkinson's disease. Strategies to alleviate ER stress by targeting specific components of the UPR using small molecules and gene therapy are highlighted.
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Affiliation(s)
- Alexis Martinez
- Biomedical Neuroscience Institute (BNI), Faculty of Medicine, University of Chile, Santiago, Chile.,Center for Geroscience, Brain Health and Metabolism (GERO), Santiago, Chile.,Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, University of Chile, Santiago, Chile
| | - Nelida Lopez
- Biomedical Neuroscience Institute (BNI), Faculty of Medicine, University of Chile, Santiago, Chile.,Center for Geroscience, Brain Health and Metabolism (GERO), Santiago, Chile.,Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, University of Chile, Santiago, Chile
| | - Constanza Gonzalez
- Biomedical Neuroscience Institute (BNI), Faculty of Medicine, University of Chile, Santiago, Chile.,Center for Geroscience, Brain Health and Metabolism (GERO), Santiago, Chile.,Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, University of Chile, Santiago, Chile
| | - Claudio Hetz
- Biomedical Neuroscience Institute (BNI), Faculty of Medicine, University of Chile, Santiago, Chile.,Center for Geroscience, Brain Health and Metabolism (GERO), Santiago, Chile.,Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, University of Chile, Santiago, Chile.,Buck Institute for Research on Aging, Novato, CA, 94945, USA.,Department of Immunology and Infectious Diseases, Harvard School of Public Health, Boston, MA, 02115, USA
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25
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Sun Y, Liang X, Chen J, Tang R, Li L, Li D. Change in Ubiquitin Proteasome System of Grass Carp Ctenopharyngodon idellus Reared in the Different Stocking Densities. Front Physiol 2018; 9:837. [PMID: 30026700 PMCID: PMC6041693 DOI: 10.3389/fphys.2018.00837] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 06/14/2018] [Indexed: 11/20/2022] Open
Abstract
The ubiquitin proteasome system (UPS) is a highly regulated mechanism of intracellular protein degradation and turnover. To evaluate the effect of crowding stress on the UPS in fish, grass carp (Ctenopharyngodon idellus) were randomly reared at low stocking density (LSD, 0.9 kg m−2) or high stocking density (HSD, 5.9 kg m−2) for 70 days. The expression of the genes regulating UPS, stress-related parameters, and profiles of amino acid in white muscle as well as growth rate of fish reared at two stocking densities were investigated. Fish exhibited significantly higher growth rate in the LSD group compared to the HSD group. Serum concentrations of cortisol, total protein, and glucose did not vary significantly in fish between two groups. There was no significant difference in the mRNA levels of nrf2, keap1, and hsp90 in white muscle of fish stocked at two densities at the endpoint of the experiment. In the UPS pathway, the expressions of ub, chip, psmc1 in the LSD group were significantly higher than those in the HSD group (P < 0.05). Ubiquitinated protein level and the content of 3-Methylhistidine elevated significantly in the LSD group (P < 0.05). The mRNA levels of mafbx, murf1, and s6k1 in the LSD group were significantly higher than those in HSD group (P < 0.05). These results illustrate that the fish cultured in lower stocking density would exhibit a greater growth rate and a fast protein turnover in muscle.
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Affiliation(s)
- Yiqing Sun
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, National Demonstration Center for Experimental Aquaculture Education, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Xiao Liang
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, National Demonstration Center for Experimental Aquaculture Education, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Jie Chen
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, National Demonstration Center for Experimental Aquaculture Education, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Rong Tang
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, National Demonstration Center for Experimental Aquaculture Education, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Li Li
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, National Demonstration Center for Experimental Aquaculture Education, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Dapeng Li
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, National Demonstration Center for Experimental Aquaculture Education, College of Fisheries, Huazhong Agricultural University, Wuhan, China
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26
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Amador MHB. Multiple pathways flounder growth in frazzled fish. J Exp Biol 2018. [DOI: 10.1242/jeb.169839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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27
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Garcia de la Serrana D, Macqueen DJ. Insulin-Like Growth Factor-Binding Proteins of Teleost Fishes. Front Endocrinol (Lausanne) 2018; 9:80. [PMID: 29593649 PMCID: PMC5857546 DOI: 10.3389/fendo.2018.00080] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 02/22/2018] [Indexed: 11/21/2022] Open
Abstract
The insulin-like growth factor (Igf) binding protein (Igfbp) family has a broad range of physiological functions and a fascinating evolutionary history. This review focuses on the Igfbps of teleost fishes, where genome duplication events have diversified gene repertoire, function, and physiological regulation-with six core Igfbps expanded into a family of over twenty genes in some lineages. In addition to briefly summarizing the current state of knowledge on teleost Igfbp evolution, function, and expression-level regulation, we highlight gaps in our understanding and promising areas for future work.
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Affiliation(s)
- Daniel Garcia de la Serrana
- School of Biology, Scottish Oceans Institute, University of St Andrews, St Andrews, United Kingdom
- *Correspondence: Daniel Garcia de la Serrana,
| | - Daniel J. Macqueen
- School of Biological Sciences, University of Aberdeen, Aberdeen, United Kingdom
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