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Wu S, Huang J, Li Y. A novel hypoxic lncRNA, LOC110520012 sponges miR-206-y to regulate angiogenesis and liver cell proliferation in rainbow trout (Oncorhynchus mykiss) by targeting vegfaa. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 280:116554. [PMID: 38878335 DOI: 10.1016/j.ecoenv.2024.116554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 05/28/2024] [Accepted: 06/04/2024] [Indexed: 06/25/2024]
Abstract
Long non-coding RNA (lncRNA) is a novel emerging type of competitive endogenous RNA (ceRNA) that performs key functions in multiple biological processes. However, little is known about the roles of lncRNA under hypoxia stress in fish. Here, vascular endothelial growth factor-Aa (vegfaa) was cloned in rainbow trout (Oncorhynchus mykiss), with the complete cDNA sequence of 2914 bp, encoding 218 amino acids. The molecular weight of the protein was approximately 25.33 kDa, and contained PDGF and VEGF_C domains. Time-course and spatial expression patterns revealed that LOC110520012 was a key regulator of rainbow trout in response to hypoxia stress, and LOC110520012, miR-206-y and vegfaa exhibited a ceRNA regulatory relationship in liver, gill, muscle and rainbow trout liver cells treated with acute hypoxia. Subsequently, the targeting relationship of LOC110520012 and vegfaa with miR-206-y was confirmed by dual-luciferase reporter analysis, and overexpression of LOC110520012 mediated the inhibition of miR-206-y expression in rainbow trout liver cells, while the opposite results were obtained after LOC110520012 silencing with siRNA. We also proved that vegfaa was a target of miR-206-y in vitro and in vivo, and the vegfaa expression and anti-proliferative effect on rainbow trout liver cells regulated by miR-206-y mimics could be reversed by LOC110520012. These results suggested that LOC110520012 can positively regulate vegfaa expression by sponging miR-206-y under hypoxia stress in rainbow trout, which facilitate in-depth understanding of the molecular mechanisms of fish adaptation and tolerance to hypoxia.
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Affiliation(s)
- Shenji Wu
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Jinqiang Huang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China.
| | - Yongjuan Li
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China; College of Science, Gansu Agricultural University, Lanzhou 730070, China
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Ren Y, Tian Y, Cheng B, Liu Y, Yu H. Effects of Environmental Hypoxia on Serum Hematological and Biochemical Parameters, Hypoxia-Inducible Factor ( hif) Gene Expression and HIF Pathway in Hybrid Sturgeon ( Acipenser schrenckii ♂ × Acipenser baerii ♀). Genes (Basel) 2024; 15:743. [PMID: 38927679 PMCID: PMC11203381 DOI: 10.3390/genes15060743] [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: 04/23/2024] [Revised: 06/02/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024] Open
Abstract
Hypoxia is a globally pressing environmental problem in aquatic ecosystems. In the present study, a comprehensive analysis was performed to evaluate the effects of hypoxia on physiological responses (hematology, cortisol, biochemistry, hif gene expression and the HIF pathway) of hybrid sturgeons (Acipenser schrenckii ♂ × Acipenser baerii ♀). A total of 180 hybrid sturgeon adults were exposed to dissolved oxygen (DO) levels of 7.00 ± 0.2 mg/L (control, N), 3.5 ± 0.2 mg/L (moderate hypoxia, MH) or 1.00 ± 0.1 mg/L (severe hypoxia, SH) and were sampled at 1 h, 6 h and 24 h after hypoxia. The results showed that the red blood cell (RBC) counts and the hemoglobin (HGB) concentration were significantly increased 6 h and 24 h after hypoxia in the SH group. The serum cortisol concentrations gradually increased with the decrease in the DO levels. Moreover, several serum biochemical parameters (AST, AKP, HBDB, LDH, GLU, TP and T-Bil) were significantly altered at 24 h in the SH group. The HIFs are transcription activators that function as master regulators in hypoxia. In this study, a complete set of six hif genes were identified and characterized in hybrid sturgeon for the first time. After hypoxia, five out of six sturgeon hif genes were significantly differentially expressed in gills, especially hif-1α and hif-3α, with more than 20-fold changes, suggesting their important roles in adaptation to hypoxia in hybrid sturgeon. A meta-analysis indicated that the HIF pathway, a major pathway for adaptation to hypoxic environments, was activated in the liver of the hybrid sturgeon 24 h after the hypoxia challenge. Our study demonstrated that hypoxia, particularly severe hypoxia (1.00 ± 0.1 mg/L), could cause considerable stress for the hybrid sturgeon. These results shed light on their adaptive mechanisms and potential biomarkers for hypoxia tolerance, aiding in aquaculture and conservation efforts.
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Affiliation(s)
- Yuanyuan Ren
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Chinese Academy of Fishery Sciences, Beijing 100141, China; (Y.R.); (B.C.)
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Qingdao 266003, China;
| | - Yuan Tian
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Qingdao 266003, China;
| | - Bo Cheng
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Chinese Academy of Fishery Sciences, Beijing 100141, China; (Y.R.); (B.C.)
| | - Yang Liu
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China;
| | - Huanhuan Yu
- Fisheries Science Institute, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100068, China
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Zhao C, Ding Y, Zhang Y, Chu M, Ning X, Ji J, Wang T, Zhang G, Yin S, Zhang K. Integrated analysis of transcriptome, translatome and proteome reveals insights into yellow catfish (Pelteobagrus fulvidraco) brain in response to hypoxia. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2024; 266:106801. [PMID: 38096642 DOI: 10.1016/j.aquatox.2023.106801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 11/11/2023] [Accepted: 12/10/2023] [Indexed: 01/02/2024]
Abstract
Brain plays a central role in adapting to environmental changes and is highly sensitive to the oxygen level. Although previous studies investigated the molecular response of brain exposure to acute hypoxia in fish, the lack of studies at the translational level hinders further understanding of the regulatory mechanism response to hypoxia from multi-omics levels. Yellow catfish (Pelteobagrus fulvidraco) is an important freshwater aquaculture species; however, hypoxia severely restricts the sustainable development of its breeding industry. In the present study, the transcriptome, translatome, and proteome were integrated to study the global landscapes of yellow catfish brain response to hypoxia. The evidently increased amount of cerebral cortical cells with oedema and pyknotic nuclei has been observed in hypoxia group of yellow catfish. A total of 2750 genes were significantly changed at the translational level. Comparative transcriptional and translational analysis suggested the HIF-1 signaling pathway, autophagy and glycolysis/gluconeogenesis were up-regulated after hypoxia exposure. KEGG enrichment of translational efficiency (TE) differential genes suggested that the lysosome and autophagy were highly enriched. Our result showed that yellow catfish tends to inhibit the TE of genes by increasing the translation of uORFs to adapt to hypoxia. Correlation analysis showed that transcriptome and translatome exhibit higher correlation. In summary, this study demonstrated that hypoxia dysregulated the cerebral function of yellow catfish at the transcriptome, translatome, and proteome, which provides a better understanding of hypoxia adaptation in teleost.
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Affiliation(s)
- Cheng Zhao
- College of Marine Science and Engineering, Nanjing Normal University, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing 210023, China; Co-Innovation Center for Marine Bio-Industry Technology, Lian Yungang 222005, Jiangsu, China
| | - Yubing Ding
- College of Marine Science and Engineering, Nanjing Normal University, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing 210023, China
| | - Yufei Zhang
- College of Marine Science and Engineering, Nanjing Normal University, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing 210023, China
| | - Mingxu Chu
- College of Marine Science and Engineering, Nanjing Normal University, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing 210023, China
| | - Xianhui Ning
- College of Marine Science and Engineering, Nanjing Normal University, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing 210023, China; Co-Innovation Center for Marine Bio-Industry Technology, Lian Yungang 222005, Jiangsu, China
| | - Jie Ji
- College of Marine Science and Engineering, Nanjing Normal University, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing 210023, China; Co-Innovation Center for Marine Bio-Industry Technology, Lian Yungang 222005, Jiangsu, China
| | - Tao Wang
- College of Marine Science and Engineering, Nanjing Normal University, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing 210023, China; Co-Innovation Center for Marine Bio-Industry Technology, Lian Yungang 222005, Jiangsu, China
| | - Guosong Zhang
- Key Laboratory for Physiology Biochemistry and Application, Heze University, Heze 274015, China
| | - Shaowu Yin
- College of Marine Science and Engineering, Nanjing Normal University, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing 210023, China; Co-Innovation Center for Marine Bio-Industry Technology, Lian Yungang 222005, Jiangsu, China
| | - Kai Zhang
- College of Marine Science and Engineering, Nanjing Normal University, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing 210023, China; Co-Innovation Center for Marine Bio-Industry Technology, Lian Yungang 222005, Jiangsu, China.
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Yan H, Zhao L, He Q, Hu Y, Li Q, He K, Zhang D, Liu Q, Luo J, Luo W, Chen S, Li L, Yang S. Exposure to Intermittent Environmental Hypoxia Promotes Vascular Remodeling through Angiogenesis in the Liver of Largemouth Bass ( Micropterus salmoides). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:17796-17807. [PMID: 36802614 DOI: 10.1021/acs.est.2c07329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
In this study, we explored the effects of 4 weeks of intermittent hypoxic exposure (IHE) on liver angiogenesis and related regulatory mechanisms in largemouth bass (Micropterus salmoides). The results indicated that the O2 tension for loss of equilibrium (LOE) decreased from 1.17 to 0.66 mg/L after 4 weeks of IHE. Meanwhile, the red blood cell (RBC) and hemoglobin concentrations significantly increased during IHE. Our investigation also found that the observed increase in angiogenesis was correlated with a high expression of related regulators, such as Jagged, phosphoinositide-3-kinase (PI3K), and mitogen-activated protein kinase (MAPK). After 4 weeks of IHE, the overexpression of factors related to angiogenesis processes mediated by HIF-independent pathways (such as nuclear factor kappa-B (NF-κB), NADPH oxidase 1 (NOX1), and interleukin 8 (IL8)) was correlated with the accumulation of lactic acid (LA) in the liver. The addition of cabozantinib, a specific inhibitor of VEGFR2, blocked the phosphorylation of VEGFR2 and downregulated the expression of downstream angiogenesis regulators in largemouth bass hepatocytes exposed to hypoxia for 4 h. These results suggested that IHE promoted liver vascular remodeling by the regulation of angiogenesis factors, presenting a potential mechanism for the improvement of hypoxia tolerance in largemouth bass.
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Affiliation(s)
- Haoxiao Yan
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Liulan Zhao
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Qishuang He
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Yifan Hu
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Quanxi Li
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Kuo He
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Dongmei Zhang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Qiao Liu
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Jie Luo
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Wei Luo
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Shiyi Chen
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Lisen Li
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Song Yang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
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Zhao Y, Xiong W, Li C, Zhao R, Lu H, Song S, Zhou Y, Hu Y, Shi B, Ge J. Hypoxia-induced signaling in the cardiovascular system: pathogenesis and therapeutic targets. Signal Transduct Target Ther 2023; 8:431. [PMID: 37981648 PMCID: PMC10658171 DOI: 10.1038/s41392-023-01652-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/10/2023] [Accepted: 09/13/2023] [Indexed: 11/21/2023] Open
Abstract
Hypoxia, characterized by reduced oxygen concentration, is a significant stressor that affects the survival of aerobic species and plays a prominent role in cardiovascular diseases. From the research history and milestone events related to hypoxia in cardiovascular development and diseases, The "hypoxia-inducible factors (HIFs) switch" can be observed from both temporal and spatial perspectives, encompassing the occurrence and progression of hypoxia (gradual decline in oxygen concentration), the acute and chronic manifestations of hypoxia, and the geographical characteristics of hypoxia (natural selection at high altitudes). Furthermore, hypoxia signaling pathways are associated with natural rhythms, such as diurnal and hibernation processes. In addition to innate factors and natural selection, it has been found that epigenetics, as a postnatal factor, profoundly influences the hypoxic response and progression within the cardiovascular system. Within this intricate process, interactions between different tissues and organs within the cardiovascular system and other systems in the context of hypoxia signaling pathways have been established. Thus, it is the time to summarize and to construct a multi-level regulatory framework of hypoxia signaling and mechanisms in cardiovascular diseases for developing more therapeutic targets and make reasonable advancements in clinical research, including FDA-approved drugs and ongoing clinical trials, to guide future clinical practice in the field of hypoxia signaling in cardiovascular diseases.
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Affiliation(s)
- Yongchao Zhao
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China
| | - Weidong Xiong
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China
- Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, 200032, China
- Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, 200032, China
| | - Chaofu Li
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China
| | - Ranzun Zhao
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
| | - Hao Lu
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - Shuai Song
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - You Zhou
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - Yiqing Hu
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China.
| | - Bei Shi
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China.
| | - Junbo Ge
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China.
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China.
- Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, 200032, China.
- Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, 200032, China.
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China.
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, 200032, China.
- Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China.
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Heinrichs-Caldas W, Ikert H, Almeida-Val VMF, Craig PM. Sex matters: Gamete-specific contribution of microRNA following parental exposure to hypoxia in zebrafish. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. PART D, GENOMICS & PROTEOMICS 2023; 47:101090. [PMID: 37267726 DOI: 10.1016/j.cbd.2023.101090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 06/04/2023]
Abstract
Oxygen availability varies among aquatic environments, and oxygen concentration has been demonstrated to drive behavioral, metabolic, and genetic adaptations in numerous aquatic species. MicroRNAs (miRNAs) are epigenetic modulators that act at the interface of the environment and the transcriptome and are known to drive plastic responses following environmental stressors. An area of miRNA that has remained underexplored is the sex specific action of miRNAs following hypoxia exposure and its effects as gene expression regulator in fishes. This study aimed to identify differences in mRNA and miRNA expression in the F1 generation of zebrafish (Danio rerio) at 1 hpf after either F0 parental male or female were exposed to 2 weeks of continuous (45 %) hypoxia. In general, F1 embryos at 1 hpf demonstrated differences in mRNA and miRNAs expression related to the stressor and to the specific sex of the F0 that was exposed to hypoxia. Bioinformatic pathway analysis of predicted miRNA:mRNA relationships indicated responses in known hypoxia signaling and mitochondrial bioenergetic pathways. This research demonstrates the importance of examining the specific male and female contributions to phenotypic variation in subsequent generations and provides evidence that there is both maternal and paternal contribution of miRNA through eggs and sperm.
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Affiliation(s)
- Waldir Heinrichs-Caldas
- LEEM - Laboratório de Ecofisiologia e Evolução Molecular, Instituto Nacional de Pesquisas da Amazônia, Campus I, Manaus, Amazonas, Brazil.
| | - Heather Ikert
- Department of Biology, University of Waterloo, 200 University Ave. W., Waterloo N2L 3G1, Ontario, Canada
| | - Vera Maria Fonseca Almeida-Val
- LEEM - Laboratório de Ecofisiologia e Evolução Molecular, Instituto Nacional de Pesquisas da Amazônia, Campus I, Manaus, Amazonas, Brazil
| | - Paul M Craig
- Department of Biology, University of Waterloo, 200 University Ave. W., Waterloo N2L 3G1, Ontario, Canada
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González-Ruiz R, Leyva-Carrillo L, Peregrino-Uriarte AB, Yepiz-Plascencia G. The combination of hypoxia and high temperature affects heat shock, anaerobic metabolism, and pentose phosphate pathway key components responses in the white shrimp (Litopenaeus vannamei). Cell Stress Chaperones 2023; 28:493-509. [PMID: 35349096 PMCID: PMC10469161 DOI: 10.1007/s12192-022-01265-1] [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: 12/02/2021] [Revised: 02/01/2022] [Accepted: 03/07/2022] [Indexed: 11/03/2022] Open
Abstract
Due to global warming, world water bodies have higher temperatures and lower oxygen concentrations that affect aquatic species including the white shrimp Litopenaeus vannamei. This species withstands these conditions, but the information of the physiological responses that allow them to survive are scarce. We analyzed the effects of high temperature, hypoxia, reoxygenation, and the combination of these factors on the relative expression of selected genes: HSF1, Hsp70, p53, TIGAR, HIF-1α, and VEGF1-3 in gills of L. vannamei. Additionally, glucose, lactate, NADP, and NADPH were determined. HSF1 was up-regulated in the high temperature and oxygen stress conditions, but Hsp70 was up-regulated only in reoxygenation at both temperatures. HIF-1α was also up-regulated by reoxygenation in both temperatures. Meanwhile, the VEGF genes were not altered by the stress conditions, since none of them changed expression drastically. p53 relative expression remained stable at the tested stress conditions, which prompts to the maintenance of antioxidant defenses. TIGAR expression was induced in normoxia and hypoxia at high temperature, which induced NADPH content helping to scavenge reactive oxygen species (ROS). Additionally, high temperature caused higher glucose and lactate content in normoxia and hypoxia, indicating carbohydrate mobilization and a switch to anaerobic metabolism. The results showed that HSF1, the anaerobic metabolism and the pentose phosphate pathway (PPP) are crucial for the shrimp response to these abiotic stress conditions and contribute to their survival.
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Affiliation(s)
- Ricardo González-Ruiz
- Centro de Investigación en Alimentación Y Desarrollo (CIAD), A.C., Carretera Gustavo Enrique Astiazarán Rosas, no. 46, Col La Victoria, Hermosillo, Sonora, C.P. 83304, México
| | - Lilia Leyva-Carrillo
- Centro de Investigación en Alimentación Y Desarrollo (CIAD), A.C., Carretera Gustavo Enrique Astiazarán Rosas, no. 46, Col La Victoria, Hermosillo, Sonora, C.P. 83304, México
| | - Alma B Peregrino-Uriarte
- Centro de Investigación en Alimentación Y Desarrollo (CIAD), A.C., Carretera Gustavo Enrique Astiazarán Rosas, no. 46, Col La Victoria, Hermosillo, Sonora, C.P. 83304, México
| | - Gloria Yepiz-Plascencia
- Centro de Investigación en Alimentación Y Desarrollo (CIAD), A.C., Carretera Gustavo Enrique Astiazarán Rosas, no. 46, Col La Victoria, Hermosillo, Sonora, C.P. 83304, México.
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Dzhalilova DS, Zolotova NA, Mkhitarov VA, Kosyreva AM, Tsvetkov IS, Khalansky AS, Alekseeva AI, Fatkhudinov TH, Makarova OV. Morphological and molecular-biological features of glioblastoma progression in tolerant and susceptible to hypoxia Wistar rats. Sci Rep 2023; 13:12694. [PMID: 37542119 PMCID: PMC10403616 DOI: 10.1038/s41598-023-39914-9] [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: 04/06/2023] [Accepted: 08/02/2023] [Indexed: 08/06/2023] Open
Abstract
Hypoxia is a major pathogenetic factor in many cancers. Individual resistance to suboptimal oxygen availability is subject to broad variation and its possible role in tumorigenesis remains underexplored. This study aimed at specific characterization of glioblastoma progression in male tolerant and susceptible to hypoxia Wistar rats. Hypoxia resistance was assessed by gasping time measurement in an 11,500 m altitude-equivalent hypobaric decompression chamber. Based on the outcome, the animals were assigned to three groups termed 'tolerant to hypoxia' (n = 13), 'normal', and 'susceptible to hypoxia' (n = 24). The 'normal' group was excluded from subsequent experiments. One month later, the animals underwent inoculation with rat glioblastoma 101.8 followed by monitoring of survival, body weight dynamics and neurological symptoms. The animals were sacrificed on post-inoculation days 11 (subgroup 1) and 15 (subgroup 2). Relative vessels number, necrosis areas and Ki-67 index were assessed microscopically; tumor volumes were determined by 3D reconstruction from histological images; serum levels of HIF-1α, IL-1β, and TNFα were determined by ELISA. None of the tolerant to hypoxia animals died of the disease during observation period, cf. 85% survival on day 11 and 55% survival on day 15 in the susceptible group. On day 11, proliferative activity of the tumors in the tolerant animals was higher compared with the susceptible group. On day 15, proliferative activity, necrosis area and volume of the tumors in the tolerant to hypoxia animals were higher compared with the susceptible group. ELISA revealed no dynamics in TNFα levels, elevated levels of IL-1β in the susceptible animals on day 15 in comparison with day 11 and tolerant ones. Moreover, there were elevated levels of HIF-1α in the tolerant animals on day 15 in comparison with day 11. Thus, the proliferative activity of glioblastoma cells and the content of HIF-1α were higher in tolerant to hypoxia rats, but the mortality associated with the tumor process and IL-1β level in them were lower than in susceptible animals. Specific features of glioblastoma 101.8 progression in tolerant and susceptible to hypoxia rats, including survival, tumor growth rates and IL-1β level, can become the basis of new personalized approaches for cancer diseases treatment in accordance to individual hypoxia resistance.
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Affiliation(s)
- D Sh Dzhalilova
- Avtsyn Research Institute of Human Morphology of Federal State Budgetary Scientific Institution "Petrovsky National Research Centre of Surgery", 3 Tsyurupy Street, Moscow, Russia, 117418.
| | - N A Zolotova
- Avtsyn Research Institute of Human Morphology of Federal State Budgetary Scientific Institution "Petrovsky National Research Centre of Surgery", 3 Tsyurupy Street, Moscow, Russia, 117418
| | - V A Mkhitarov
- Avtsyn Research Institute of Human Morphology of Federal State Budgetary Scientific Institution "Petrovsky National Research Centre of Surgery", 3 Tsyurupy Street, Moscow, Russia, 117418
| | - A M Kosyreva
- Avtsyn Research Institute of Human Morphology of Federal State Budgetary Scientific Institution "Petrovsky National Research Centre of Surgery", 3 Tsyurupy Street, Moscow, Russia, 117418
- Research Institute of Molecular and Cellular Medicine, RUDN University, 6 Miklukho-Maklaya St, Moscow, Russia, 117198
| | - I S Tsvetkov
- Avtsyn Research Institute of Human Morphology of Federal State Budgetary Scientific Institution "Petrovsky National Research Centre of Surgery", 3 Tsyurupy Street, Moscow, Russia, 117418
| | - A S Khalansky
- Avtsyn Research Institute of Human Morphology of Federal State Budgetary Scientific Institution "Petrovsky National Research Centre of Surgery", 3 Tsyurupy Street, Moscow, Russia, 117418
| | - A I Alekseeva
- Avtsyn Research Institute of Human Morphology of Federal State Budgetary Scientific Institution "Petrovsky National Research Centre of Surgery", 3 Tsyurupy Street, Moscow, Russia, 117418
| | - T H Fatkhudinov
- Avtsyn Research Institute of Human Morphology of Federal State Budgetary Scientific Institution "Petrovsky National Research Centre of Surgery", 3 Tsyurupy Street, Moscow, Russia, 117418
- Research Institute of Molecular and Cellular Medicine, RUDN University, 6 Miklukho-Maklaya St, Moscow, Russia, 117198
| | - O V Makarova
- Avtsyn Research Institute of Human Morphology of Federal State Budgetary Scientific Institution "Petrovsky National Research Centre of Surgery", 3 Tsyurupy Street, Moscow, Russia, 117418
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Li QQ, Zhang J, Wang HY, Niu SF, Wu RX, Tang BG, Wang QH, Liang ZB, Liang YS. Transcriptomic Response of the Liver Tissue in Trachinotus ovatus to Acute Heat Stress. Animals (Basel) 2023; 13:2053. [PMID: 37443851 DOI: 10.3390/ani13132053] [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: 05/18/2023] [Revised: 06/15/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023] Open
Abstract
Trachinotus ovatus is a major economically important cultured marine fish in the South China Sea. However, extreme weather and increased culture density result in uncontrollable problems, such as increases in water temperature and a decline in dissolved oxygen (DO), hindering the high-quality development of aquaculture. In this study, liver transcriptional profiles of T. ovatus were investigated under acute high-temperature stress (31 °C and 34 °C) and normal water temperature (27 °C) using RNA sequencing (RNA-Seq) technology. Differential expression analysis and STEM analysis showed that 1347 differentially expressed genes (DEGs) and four significant profiles (profiles 0, 3, 4, and 7) were screened, respectively. Of these DEGs, some genes involved in heat shock protein (HSPs), hypoxic adaptation, and glycolysis were up-regulated, while some genes involved in the ubiquitin-proteasome system (UPS) and fatty acid metabolism were down-regulated. Our results suggest that protein dynamic balance and function, hypoxia adaptation, and energy metabolism transformation are crucial in response to acute high-temperature stress. Our findings contribute to understanding the molecular response mechanism of T. ovatus under acute heat stress, which may provide some reference for studying the molecular mechanisms of other fish in response to heat stress.
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Affiliation(s)
- Qian-Qian Li
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Jing Zhang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
- Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524025, China
| | - Hong-Yang Wang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Su-Fang Niu
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
- Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524025, China
| | - Ren-Xie Wu
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
- Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524025, China
| | - Bao-Gui Tang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
- Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524025, China
| | - Qing-Hua Wang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Zhen-Bang Liang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Yan-Shan Liang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
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10
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Zare M, Heidari E, Hosseini Choupani SM, Akhavan SR, Rombenso A, Esmaeili N. The Recovery Time between Early Mild Stress and Final Acute Stress Affects Survival Rate, Immunity, Health, and Physiology of Oscar ( Astronotus ocellatus). Animals (Basel) 2023; 13:ani13101606. [PMID: 37238036 DOI: 10.3390/ani13101606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/24/2023] [Accepted: 05/02/2023] [Indexed: 05/28/2023] Open
Abstract
This study investigated how the time interval between the last EMS (netting) and the acute confinement stress (AC stress) at the end of the experiment can influence growth, haematology, blood biochemistry, immunological response, antioxidant system, liver enzymes, and stress response of oscar (Astronotus ocellatus; 5.7 ± 0.8 g). Nine experimental treatments were tested, as follows: Control, Stress28 (EMS in weeks two and eight), Stress27 (EMS in weeks two and seven), Stress26 (EMS in weeks two and six), Stress25 (EMS in weeks two and five), Stress24 (EMS in week two and four), Stress23 (EMS in week two and three), Stress78 (EMS in week seven and eight), and Stress67 (EMS in week six and seven). After the nine-week experimental period, while it was not significant, fish exposed to Stress78 (26.78 g) and Stress67 (30.05 g) had the lowest growth rates. After AC stress, fish exposed to Stress78 (63.33%) and Control (60.00%) showed the lowest survival rate. The Stress78 fish displayed low resilience, illustrated by values of blood performance, LDL, total protein, lysozyme, ACH50, immunoglobin, complement component 4, complement component 3, cortisol, superoxide dismutase, catalase, and alanine aminotransferase. In conclusion, gathering consecutive stress and not enough recovery time in the Stress78 group negatively affected stress responsiveness and the health of oscar.
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Affiliation(s)
- Mahyar Zare
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, Institute of Aquaculture and Protection of Waters, University of South Bohemia in České Budějovice, Na Sádkách, 37005 České Budějovice, Czech Republic
| | - Elaheh Heidari
- Department of Animal, Marine and Aquatic Biology and Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran 1983969411, Iran
| | | | - Sobhan R Akhavan
- Nelson Marlborough Institute of Technology, 322 Hardy Street, Private Bag 19, Nelson 7010, New Zealand
| | - Artur Rombenso
- Agriculture and Food, Livestock & Aquaculture Program, Bribie Island Research Centre, Woorim, QLD 4507, Australia
| | - Noah Esmaeili
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7005, Australia
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11
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Zhao Q, Sun X, Zheng C, Xue C, Jin Y, Zhou N, Sun S. The evolutionarily conserved hif-1/bnip3 pathway promotes mitophagy and mitochondrial fission in crustacean testes during hypoxia. Am J Physiol Regul Integr Comp Physiol 2023; 324:R128-R142. [PMID: 36468826 DOI: 10.1152/ajpregu.00212.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The hypoxia-inducible factor 1 (HIF-1) cascade is an ancient and strongly evolutionarily conserved signaling pathway that is involved in the hypoxic responses of most metazoans. Despite immense advances in the understanding of the HIF-1-mediated regulation of hypoxic responses in mammals, the contribution of the hif-1 cascade in the hypoxic adaptation of nonmodel invertebrates remains unclear. In this study, we used the oriental river prawn Macrobrachium nipponense for investigating the roles of hif-1-regulated mitophagy in crustacean testes under hypoxic conditions. We identified that the Bcl-2/adenovirus E1B 19-kDa interacting protein (bnip3) functions as a regulator of mitophagy in M. nipponense and demonstrated that hif-1α activates bnip3 by binding to the bnip3 promoter. Hif-1α knockdown suppressed the expression of multiple mitophagy-related genes, and prawns with hif-1α knockdown exhibited higher mortality under hypoxic conditions. We observed that the levels of BNIP3 were induced under hypoxic conditions and detected that bnip3 knockdown inhibited the mitochondrial translocation of dynamin-related protein 1 (drp1), which is associated with mitochondrial fission. Notably, bnip3 knockdown inhibited hypoxia-induced mitophagy and aggravated the deleterious effects of hypoxia-induced reactive oxygen species (ROS) production and apoptosis. The experimental studies demonstrated that hypoxia induced mitochondrial fission in M. nipponense via drp1. Altogether, the study elucidated the mechanism underlying hif-1/bnip3-mediated mitochondrial fission and mitophagy and demonstrated that this pathway protects crustaceans against ROS production and apoptosis induced by acute hypoxia.
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Affiliation(s)
- Qianqian Zhao
- Key Laboratory of Freshwater Aquatic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, People's Republic of China
| | - Xichao Sun
- Key Laboratory of Freshwater Aquatic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, People's Republic of China
| | - Cheng Zheng
- Key Laboratory of Freshwater Aquatic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, People's Republic of China
| | - Cheng Xue
- Key Laboratory of Freshwater Aquatic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, People's Republic of China
| | - Yiting Jin
- Key Laboratory of Freshwater Aquatic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, People's Republic of China
| | - Na Zhou
- State Key Laboratory of Quality Research in Chinese Medicine and School of Pharmacy, Macau University of Science and Technology, Macau, People's Republic of China
| | - Shengming Sun
- Key Laboratory of Freshwater Aquatic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, People's Republic of China.,International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, Shanghai, People's Republic of China
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12
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García-Meilán I, Tort L, Khansari AR. Rainbow trout integrated response after recovery from short-term acute hypoxia. Front Physiol 2022; 13:1021927. [DOI: 10.3389/fphys.2022.1021927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
Overcoming a stress situation, such as hypoxia episodes, which involve an allostatic load, will depend on the ability of fish to modulate physiological and biochemical systems to maintain homeostasis. The aim of the study was to determine the integrated stress response after acute hypoxia of the rainbow trout considering the different elements and areas of the stress response: systemic and mucosal, local and global, and from the systemic hypothalamic–pituitary–interrenal axis to skin mucosa. For this purpose, trout were subjected to acute hypoxia (dissolved O2 down to 2 mg/L) for 1 h and then recovered and sampled at 1, 6, and 24 h after reoxygenation. Physiological responses were significantly affected by hypoxic stress and their interaction with time after the challenge, being significant for plasma lactate and cortisol levels, in both plasma and skin mucus. At the central brain level, only trh expression was modulated 1 h after hypoxia which indicates that brain function is not heavily affected by this particular stress. Unlike the brain, the head kidney and skin were more affected by hypoxia and reoxygenation. In the head kidney, an upregulation in the expression of most of the genes studied (gr, il1β, il6, tgfβ1, lysozyme, caspase 3, enolase, hif-1, myoglobin, sod2, gpx, gst, and gsr) took place 6 h after recovery, whereas only hsp70 and il10 were upregulated after 1 h. On the contrary, in the skin, most of the analyzed genes showed a higher upregulation during 1 h after stress suggesting that, in the skin, a local response took place as soon as the stressor was detected, thus indicating the importance of the skin in the building of a stress response, whereas the interrenal tissue participated in a later time point to help prevent further alteration at the central level. The present results also show that, even though the stressor is a physical/environmental stressor, all components of the biological systems participate in the regulation of the response process and the recovery process, including neuroendocrine, metabolism, and immunity.
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13
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Lai XX, Zhang CP, Wu YX, Yang Y, Zhang MQ, Qin WJ, Wang RX, Shu H. Comparative transcriptome analysis reveals physiological responses in liver tissues of Epinephelus coioides under acute hypoxia stress. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. PART D, GENOMICS & PROTEOMICS 2022; 43:101005. [PMID: 35653833 DOI: 10.1016/j.cbd.2022.101005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 05/16/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
Hypoxia is a common stressor for aquatic animals, including Epinephelus coioides, with a considerable impact on sustainable aquaculture. E. coioides is a widely consumed fish in China owing to its high nutritious value and taste. However, water hypoxia caused by high density culture process has become a great threat to E. coioides culture, and its response to hypoxia stress has not been discussed before. Therefore, the aim of this study was to examine the response of E. coioides to acute hypoxia using transcriptomic techniques. To this end, RNA sequencing was performed on the liver tissues of fish exposed to normoxic and hypoxic conditions for 1 h. The results presented 503 differentially expressed genes (DEGs) in the liver tissue of fish exposed to hypoxic condition compared with those in the normoxic group. Enrichment analysis using the Gene Ontology database showed that the DEGs were mainly enriched for functions related to cell apoptosis signaling pathways, insulin resistance, antioxidant enzymes, and glycolysis/gluconeogenesis signaling pathways. KEGG enrichment analysis showed that HIF-1, PI3K-AKT, IL-17, NF-kappa B, and MAPK signaling pathways were significantly enriched by the DEGs. The DEGs were mainly involved in immune response, inflammatory response, cell apoptosis regulation, energy metabolism, and substance metabolism. Additionally, the hypoxia response in E. coioides was mainly regulated via the PI3K-AKT-HIF-1 signaling axis. Overall, the findings of this study contribute to the understanding of hypoxia stress response in E. coioides, and provides target genes for breeding hypoxia-tolerant Epinephelus spp.
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Affiliation(s)
- Xing-Xing Lai
- School of Life Sciences, Guangzhou University, Guangzhou 51006, China.
| | - Cui-Ping Zhang
- School of Life Sciences, Guangzhou University, Guangzhou 51006, China
| | - Yu-Xin Wu
- School of Life Sciences, Guangzhou University, Guangzhou 51006, China
| | - Yang Yang
- School of Life Sciences, Sun Yat-sen University, Guangzhou 51006, China
| | - Ming-Qing Zhang
- School of Life Sciences, Guangzhou University, Guangzhou 51006, China
| | - Wei-Jian Qin
- School of Life Sciences, Guangzhou University, Guangzhou 51006, China
| | - Rui-Xuan Wang
- School of Life Sciences and Food Engineering, Hanshan Normal University, Chaozhou 521041, China.
| | - Hu Shu
- School of Life Sciences, Guangzhou University, Guangzhou 51006, China.
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14
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Liu B, Wen H, Yang J, Li X, Li G, Zhang J, Wu S, Butts IAE, He F. Hypoxia Affects HIF-1/LDH-A Signaling Pathway by Methylation Modification and Transcriptional Regulation in Japanese Flounder (Paralichthys olivaceus). BIOLOGY 2022; 11:biology11081233. [PMID: 36009861 PMCID: PMC9405012 DOI: 10.3390/biology11081233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/02/2022] [Accepted: 07/04/2022] [Indexed: 11/20/2022]
Abstract
Simple Summary With global climate change and increased aquaculture production, fishes in natural waters or aquaculture systems are easily subjected to hypoxic stress. However, our understanding about their responsive mechanisms to hypoxia is still limited. Japanese flounder (Paralichthys olivaceus) is a widely cultivated marine economical flatfish, whose hypoxic responsive mechanisms are not fully researched. In this study, responses to hypoxia were investigated at blood physiological, biochemical, hormonal, and molecular levels. Responsive mechanisms of the HIF-1/LDH-A signaling pathway in epigenetic modification and transcriptional regulation were also researched. These results are important for enriching the theory of environmental responsive mechanisms and guiding aquaculture. Abstract Japanese flounder (Paralichthys olivaceus) responsive mechanisms to hypoxia are still not fully understood. Therefore, we performed an acute hypoxic treatment (dissolved oxygen at 2.07 ± 0.08 mg/L) on Japanese flounder. It was confirmed that the hypoxic stress affected the physiological phenotype through changes in blood physiology (RBC, HGB, WBC), biochemistry (LDH, ALP, ALT, GLU, TC, TG, ALB), and hormone (cortisol) indicators. Hypoxia inducible factor-1 (HIF-1), an essential oxygen homeostasis mediator in organisms consisting of an inducible HIF-1α and a constitutive HIF-1β, and its target gene LDH-A were deeply studied. Results showed that HIF-1α and LDH-A genes were co-expressed and significantly affected by hypoxic stress. The dual-luciferase reporter assay confirmed that transcription factor HIF-1 transcriptionally regulated the LDH-A gene, and its transcription binding sequence was GGACGTGA located at −2343~−2336. The DNA methylation status of HIF-1α and LDH-A genes were detected to understand the mechanism of environmental stress on genes. It was found that hypoxia affected the HIF-1α gene and LDH-A gene methylation levels. The study uncovered HIF-1/LDH-A signaling pathway responsive mechanisms of Japanese flounder to hypoxia in epigenetic modification and transcriptional regulation. Our study is significant to further the understanding of environmental responsive mechanisms as well as providing a reference for aquaculture.
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Affiliation(s)
- Binghua Liu
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266000, China
| | - Haishen Wen
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266000, China
| | - Jun Yang
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266000, China
| | - Xiaohui Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266000, China
| | - Guangling Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266000, China
| | - Jingru Zhang
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266000, China
| | - Shuxian Wu
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266000, China
| | - Ian AE Butts
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA
| | - Feng He
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266000, China
- Correspondence:
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15
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Ji W, Zhuang X, Hu C, Zhang Y. Revealing the Active Compounds and Mechanism of Banxia Xiexin Decoction Against Gastric Ulcer by Network Pharmacology and Molecular Docking. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221118487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Gastric ulcer (GU) is a clinically common gastrointestinal disease with a long disease course that frequently reoccurs. Banxia Xiexin decoction (BXD), a traditional Chinese medicine prescription, has a prominent protective effect against GU. Nonetheless, the therapeutic mechanisms of BXD against GU remain elusive. In this study, a rat model of GU was established by gavage with 95% ethanol, and BXD significantly attenuated the inflammatory effect of GU in rats. An “active ingredient–target” interaction and GU protein–protein interaction networks were constructed based on system biology, which could screen out the crucial active ingredients. The target protein–protein interaction network for the BXD treatment of GU was constructed to identify the key target proteins with network topology parameters. The DAVID database was then used to perform Gene Ontology and Kyoto encyclopedia of genes and genomes enrichment analysis on the proteins targeted by BXD in the treatment of GU. Finally, molecular docking technology was used to study the interactions between key active ingredients and core target proteins. A total of 89 active ingredients of BXD were screened and 63 target proteins of BXD in the treatment of GU were identified. Through the analysis of protein–protein interaction and the active ingredient–target protein network diagram, it was found that tumor necrosis factor-α(TNF-α), AKT1, and PTGS2 may play a key role in the treatment of GU by BXD. Molecular docking showed that these 3 core target proteins had a good affinity with the main components of BXD, including baicalein, norwogonin, and skullcapflavone II. The mechanism of BXD against GU may involve the inhibition of inflammatory response and oxidative stress, involving signaling pathways such as TNF, hypoxia-inducible factor-1, and mitogen-activated protein kinase. Network pharmacology and molecular docking technology indicated the key active ingredients, target proteins, and signal pathways that may be the biological basis of BXD in the treatment of GU.
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Affiliation(s)
- Wanli Ji
- School of Pharmacy, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Xiaoyu Zhuang
- Science and Technology Experiment Center, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Cheng Hu
- Science and Technology Experiment Center, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yifan Zhang
- School of Pharmacy, Shanghai University of Medicine and Health Sciences, Shanghai, China
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16
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Li X, Liu B, Yang J, Li G, Wen H, Zhang M, Li J, He F. DNA methylation in promoter region of immune related genes STAT3 and VEGFA and biochemical parameters change in muscle of Japanese flounder under acute hypoxia. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2022; 129:104295. [PMID: 34662685 DOI: 10.1016/j.dci.2021.104295] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 10/09/2021] [Accepted: 10/12/2021] [Indexed: 06/13/2023]
Abstract
Acute hypoxic stress can lead to immune response in fish, but the molecular mechanism of muscle immunity in fish under acute hypoxia are still unclear. In this study, we carried out the effect of signal transducer and activator of transcription3(STAT3) and vascular endothelial growth factor A(VEGFA) on muscle immune responses of Japanese flounder (Paralichthys olivaceus) during acute hypoxic stimulation (1.65 ± 0.28mg/L O2; 3h, 6h, 12h, 24h) and reoxygenation (7.30 ± 0.40mg/L O2; R12h, R24h, R48h). In situ hybridization (ISH) showed that STAT3 and VEGFA RNA were co-located in the skeletal muscle of Japanese flounder. Japanese flounder was seriously affected by hypoxia for 3h and 6h. The expression of STAT3 and VEGFA increased significantly. The methylation levels of STAT3 5'UTR region and VEGFA promoter region were significantly lower than those in normoxia group, which was negatively correlated with the expression levels of STAT3 and VEGFA. The enzyme activities (LDH, ALT, AST, ALP) changed significantly. In addition, enzyme-linked immunosorbent assay (ELISA) detected a positive correlation between serum VEGFA concentration and muscle VEGFA mRNA. The current study have shown that Japanese flounder responded to acute hypoxic stress at multiple metabolic levels by changing DNA methylation status and activating transcription factors such as HIF-1α, Nrf2 and STAT3. It is significant for the scientific development of aquaculture through analyzing the effects of hypoxia on biological immunity.
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Affiliation(s)
- Xiaohui Li
- Key Laboratory of Mariculture, Ocean University of China, Ministry of Education, Qingdao, 266003, PR China
| | - Binghua Liu
- Key Laboratory of Mariculture, Ocean University of China, Ministry of Education, Qingdao, 266003, PR China
| | - Jun Yang
- Key Laboratory of Mariculture, Ocean University of China, Ministry of Education, Qingdao, 266003, PR China
| | - Guangling Li
- Key Laboratory of Mariculture, Ocean University of China, Ministry of Education, Qingdao, 266003, PR China
| | - Haishen Wen
- Key Laboratory of Mariculture, Ocean University of China, Ministry of Education, Qingdao, 266003, PR China
| | - Meizhao Zhang
- Key Laboratory of Mariculture, Ocean University of China, Ministry of Education, Qingdao, 266003, PR China
| | - Jifang Li
- Key Laboratory of Mariculture, Ocean University of China, Ministry of Education, Qingdao, 266003, PR China
| | - Feng He
- Key Laboratory of Mariculture, Ocean University of China, Ministry of Education, Qingdao, 266003, PR China.
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17
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Li J, Zhang G, Yin D, Li Y, Zhang Y, Cheng J, Zhang K, Ji J, Wang T, Jia Y, Yin S. Integrated application of multi-omics strategies provides insights into the environmental hypoxia response in Pelteobagrus vachelli muscle. Mol Cell Proteomics 2022; 21:100196. [PMID: 35031490 PMCID: PMC8938323 DOI: 10.1016/j.mcpro.2022.100196] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 11/07/2021] [Accepted: 01/05/2022] [Indexed: 11/28/2022] Open
Abstract
Increasing pressures on aquatic ecosystems because of pollutants, nutrient enrichment, and global warming have severely depleted oxygen concentrations. This sudden and significant lack of oxygen has resulted in persistent increases in fish mortality rates. Revealing the molecular mechanism of fish hypoxia adaptation will help researchers to find markers for hypoxia induced by environmental stress. Here, we used a multiomics approach to identify several hypoxia-associated miRNAs, mRNAs, proteins, and metabolites involved in diverse biological pathways in the muscles of Pelteobagrus vachelli. Our findings revealed significant hypoxia-associated changes in muscles over 4 h of hypoxia exposure and discrete tissue-specific patterns. We have previously reported that P. vachelli livers exhibit increased anaerobic glycolysis, heme synthesis, erythropoiesis, and inhibit apoptosis when exposed to hypoxia for 4 h. However, the opposite was observed in muscles. According to our comprehensive analysis, fishes show an acute response to hypoxia, including activation of catabolic pathways to generate more energy, reduction of biosynthesis to decrease energy consumption, and shifting from aerobic to anaerobic metabolic contributions. Also, we found that hypoxia induced muscle dysfunction by impairing mitochondrial function, activating inflammasomes, and apoptosis. The hypoxia-induced mitochondrial dysfunction enhanced oxidative stress, apoptosis, and further triggered interleukin-1β production via inflammasome activation. In turn, interleukin-1β further impaired mitochondrial function or apoptosis by suppressing downstream mitochondrial biosynthesis–related proteins, thus resulting in a vicious cycle of inflammasome activation and mitochondrial dysfunction. Our findings contribute meaningful insights into the molecular mechanisms of hypoxia, and the methods and study design can be utilized across different fish species. First multiomics analysis of mRNA, miRNA, protein, and metabolite in fishes. Liver and muscle were tissue-specific induced by hypoxia. About 70 genes and 16 miRNAs related to hypoxia adaptation were detected. Hypoxia affects muscle function by mediating energy metabolism via HIF pathway.
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Affiliation(s)
- Jie Li
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing, 210023, China; Key Laboratory for Physiology Biochemistry and Application, Heze University, Heze, 274015, China
| | - Guosong Zhang
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing, 210023, China; Key Laboratory for Physiology Biochemistry and Application, Heze University, Heze, 274015, China.
| | - Danqing Yin
- School of Computer Science, University of Sydney, Sydney, 2006, Australia
| | - Yao Li
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Yiran Zhang
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Jinghao Cheng
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Kai Zhang
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Jie Ji
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Tao Wang
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Yongyi Jia
- Zhejiang Institute of Freshwater Fisheries, Huzhou, 313001, China
| | - Shaowu Yin
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing, 210023, China.
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18
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Vasconcelos-Lima JL, Oikawa-Cardoso VL, Heinrichs-Caldas W, Almeida-Val VMF. Influence of hypoxia on biochemical aspects and on expression of genes related to oxygen-homeostasis of the Amazonian cichlid Astronotus ocellatus (Agassiz, 1831). Genet Mol Biol 2021; 44:e20210127. [PMID: 34807223 PMCID: PMC8607528 DOI: 10.1590/1678-4685-gmb-2021-0127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 09/06/2021] [Indexed: 11/22/2022] Open
Abstract
Variations in dissolved oxygen levels are common in the Amazonian aquatic environments and the aquatic organisms that inhabit these environments developed a variety of adaptive responses to deal with such conditions. Some Amazonian fish species are tolerant to low oxygen levels and the cichlid Astronotus ocellatus is one of the most hypoxia-tolerant species. Herein, we aimed to unveil the biochemical and molecular responses that A. ocellatus presents when submitted to hypoxia. Hypoxia indicators were measured, such as plasma glucose, plasma lactate, hepatic glycogen and relative transcript levels of prolyl hydroxylase 2 (phd2) and hypoxia-inducible factor-1α (hif-1α) in juveniles of approximately 50 g exposed to 1, 3, and 5 hours of hypoxia (0.7 mg O2.L-1), followed by 3 hours of recovery in normoxia (6 mg O2.L-1). Fish exposed to hypoxia reduced liver glycogen levels within 3 hours of hypoxia, when comparing with 1 hour, and increased plasma glucose and lactate. Under the same condition, phd2 transcripts levels increased in gills, but decreased in liver. In contrast, hypoxia did not affect relative gene expression of hif-1α in both tissues. Based on the transcription pattern of phd2, these results showed that liver and gills of A. ocellatus have different molecular strategies to cope with environmental hypoxia.
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Affiliation(s)
- José L Vasconcelos-Lima
- Instituto Nacional de Pesquisas da Amazônia, Laboratório de Ecofisiologia e Evolução Molecular (LEEM), Manaus, AM, Brazil
| | - Vanessa L Oikawa-Cardoso
- Instituto Nacional de Pesquisas da Amazônia, Laboratório de Ecofisiologia e Evolução Molecular (LEEM), Manaus, AM, Brazil
| | - Waldir Heinrichs-Caldas
- Instituto Nacional de Pesquisas da Amazônia, Laboratório de Ecofisiologia e Evolução Molecular (LEEM), Manaus, AM, Brazil
| | - Vera M F Almeida-Val
- Instituto Nacional de Pesquisas da Amazônia, Laboratório de Ecofisiologia e Evolução Molecular (LEEM), Manaus, AM, Brazil
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Pei X, Chu M, Tang P, Zhang H, Zhang X, Zheng X, Li J, Mei J, Wang T, Yin S. Effects of acute hypoxia and reoxygenation on oxygen sensors, respiratory metabolism, oxidative stress, and apoptosis in hybrid yellow catfish "Huangyou-1". FISH PHYSIOLOGY AND BIOCHEMISTRY 2021; 47:1429-1448. [PMID: 34313912 DOI: 10.1007/s10695-021-00989-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 07/08/2021] [Indexed: 06/13/2023]
Abstract
The regulation mechanism of the hybrid yellow catfish "Huangyou-1" was assessed under conditions of hypoxia and reoxygenation by examination of oxygen sensors and by monitoring respiratory metabolism, oxidative stress, and apoptosis. The expressions of genes related to oxygen sensors (HIF-1α, HIF-2α, VHL, HIF-1β, PHD2, and FIH-1) were upregulated in the brain and liver during hypoxia, and recovered compared with control upon reoxygenation. The expressions of genes related to glycolysis (HK1, PGK1, PGAM2, PFK, and LDH) were increased during hypoxia and then recovered compared with control upon reoxygenation. The mRNA levels of CS did not change during hypoxia in the brain and liver, but increased during reoxygenation. The mRNA levels of SDH decreased significantly only in the liver during hypoxia, but later increased compared with control upon reoxygenation in both tissues. Under hypoxic conditions, the expressions of genes related to oxidative stress (SOD1, SOD2, GSH-Px, and CAT) and the activity of antioxidant enzymes (SOD, CAT, and GSH-Px) and MDA were upregulated compared with control. The expressions of genes related to apoptosis (Apaf-1, Bax, Caspase 3, Caspase 9, and p53) were higher than those in control during hypoxic exposure, while the expressions of Bcl-2 and Cyt C were decreased. The findings of the transcriptional analyses will provide insights into the molecular mechanisms of hybrid yellow catfish "Huangyou-1" under conditions of hypoxia and reoxygenation. Overall, these findings showed that oxygen sensors of "Huangyou-1" are potentially useful biomarkers of environmental hypoxic exposure. Together with genes related to respiratory metabolism, oxidative stress and apoptosis occupy a quite high position in enhancing hypoxia tolerance. Our findings provided new insights into the molecular regulatory mechanism of hypoxia in "Huangyou-1."
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Affiliation(s)
- Xueying Pei
- College of Marine Science and Engineering, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing Normal University, Nanjing, 210023, Jiangsu, China
- Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China
| | - Mingxu Chu
- College of Marine Science and Engineering, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing Normal University, Nanjing, 210023, Jiangsu, China
- Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China
| | - Peng Tang
- College of Marine Science and Engineering, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing Normal University, Nanjing, 210023, Jiangsu, China
- Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China
| | - Hongyan Zhang
- College of Marine Science and Engineering, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing Normal University, Nanjing, 210023, Jiangsu, China
- Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China
| | - Xinyu Zhang
- College of Marine Science and Engineering, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing Normal University, Nanjing, 210023, Jiangsu, China
- Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China
| | - Xiang Zheng
- College of Marine Science and Engineering, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing Normal University, Nanjing, 210023, Jiangsu, China
- Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China
| | - Jie Li
- College of Marine Science and Engineering, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing Normal University, Nanjing, 210023, Jiangsu, China
- Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China
| | - Jie Mei
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Tao Wang
- College of Marine Science and Engineering, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing Normal University, Nanjing, 210023, Jiangsu, China.
- Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China.
| | - Shaowu Yin
- College of Marine Science and Engineering, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing Normal University, Nanjing, 210023, Jiangsu, China.
- Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China.
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20
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Mandic M, Joyce W, Perry SF. The evolutionary and physiological significance of the Hif pathway in teleost fishes. J Exp Biol 2021; 224:272213. [PMID: 34533194 DOI: 10.1242/jeb.231936] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The hypoxia-inducible factor (HIF) pathway is a key regulator of cellular O2 homeostasis and an important orchestrator of the physiological responses to hypoxia (low O2) in vertebrates. Fish can be exposed to significant and frequent changes in environmental O2, and increases in Hif-α (the hypoxia-sensitive subunit of the transcription factor Hif) have been documented in a number of species as a result of a decrease in O2. Here, we discuss the impact of the Hif pathway on the hypoxic response and the contribution to hypoxia tolerance, particularly in fishes of the cyprinid lineage, which includes the zebrafish (Danio rerio). The cyprinids are of specific interest because, unlike in most other fishes, duplicated paralogs of the Hif-α isoforms arising from a teleost-specific genome duplication event have been retained. Positive selection has acted on the duplicated paralogs of the Hif-α isoforms in some cyprinid sub-families, pointing to adaptive evolutionary change in the paralogs. Thus, cyprinids are valuable models for exploring the evolutionary significance and physiological impact of the Hif pathway on the hypoxic response. Knockout in zebrafish of either paralog of Hif-1α greatly reduces hypoxia tolerance, indicating the importance of both paralogs to the hypoxic response. Here, with an emphasis on the cardiorespiratory system, we focus on the role of Hif-1α in the hypoxic ventilatory response and the regulation of cardiac function. We explore the effects of the duration of the hypoxic exposure (acute, sustained or intermittent) on the impact of Hif-1α on cardiorespiratory function and compare relevant data with those from mammalian systems.
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Affiliation(s)
- Milica Mandic
- Department of Animal Science, 2251 Meyer Hall, University of California Davis, Davis, CA 95616, USA
| | - William Joyce
- Department of Biology, University of Ottawa, 30 Marie Curie, Ottawa, ON, Canada, K1N 6N5.,Department of Biology - Zoophysiology, Aarhus University, C.F. Møllers Allé 3, 8000 Aarhus C, Denmark
| | - Steve F Perry
- Department of Biology, University of Ottawa, 30 Marie Curie, Ottawa, ON, Canada, K1N 6N5
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21
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Braz-Mota S, Almeida-Val VMF. Ecological adaptations of Amazonian fishes acquired during evolution under environmental variations in dissolved oxygen: A review of responses to hypoxia in fishes, featuring the hypoxia-tolerant Astronotus spp. JOURNAL OF EXPERIMENTAL ZOOLOGY PART 2021; 335:771-786. [PMID: 34338442 DOI: 10.1002/jez.2531] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 06/25/2021] [Accepted: 07/12/2021] [Indexed: 11/06/2022]
Abstract
The Amazon Basin presents a dynamic regime of dissolved oxygen (DO) oscillations, which varies among habitats within the basin, including spatially, daily, and seasonally. Fish species inhabiting these environments have developed many physiological adaptations to deal with the frequent and periodic events of low (hypoxia), or no (anoxia) DO in the water. Cichlid fishes, especially the genus Astronotus (A. ocellatus and A. crassipinnis), are hypoxic-tolerant species that can survive in very low DO levels for long periods, while adults often inhabit places where DO is close to zero. The present review will focus on some metabolic adjustments that Amazonian fish use in response to hypoxic conditions, which include many strategies from behavioral, morphological, physiological, and biochemical strategies. These strategies include ASR (aerial surface respiration), lip expansion, branchial tissue remodeling, increases in glycolytic metabolism with the increase of blood glucose levels, and increases in anaerobic metabolism with increases of plasma lactate levels. Other groups over evolutionary time developed obligate aerial respiration with changes in pharyngeal and swim bladder vascularization as well as the development of a true lung. However, most species are water-breathing species, such as A. ocellatus and A. crassipinnis, which are detailed in this study because they are used as hypoxia-tolerant model fish. Herein, we draw together the literature data of the physiological mechanisms by which these species decrease aerobic metabolism and increase anaerobic metabolism to survive hypoxia. This is the first attempt to synthesize the physiological mechanisms of the hypoxia-tolerant Astronotus species.
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Affiliation(s)
- Susana Braz-Mota
- Laboratory of Ecophysiology and Molecular Evolution, Brazilian National Institute for Research in the Amazon, Manaus, Amazonas, Brazil
| | - Vera M F Almeida-Val
- Laboratory of Ecophysiology and Molecular Evolution, Brazilian National Institute for Research in the Amazon, Manaus, Amazonas, Brazil
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22
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Driedzic WR, MacCormack TJ, Lamarre SG. Contrasting strategies of hypoxic cardiac performance and metabolism in cichlids and armoured catfish. JOURNAL OF EXPERIMENTAL ZOOLOGY PART 2021; 335:787-800. [PMID: 33830679 DOI: 10.1002/jez.2461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 11/07/2022]
Abstract
The heart of tropical fishes is a particularly useful model system in which to investigate mechanisms of hypoxic tolerance. Here we focus on insights gained from two groups of fishes, cichlids and armoured catfishes. Cichlids respond to hypoxia by entering a sustained hypometabolism with decreased heart performance to match whole animal circulatory needs. Heart rate is decreased along with protein turnover to reduce adenosine triphosphate demand. This occurs despite the inherent capacity for high levels of cardiac power development. Although highly hypoxic tolerant at the whole animal level, the heart of cichlids does not have high constitutive activities of glycolytic enzymes compared to other species. Information is conflicting with respect to changes in glycolytic gene expression and enzyme activity following hypoxic exposure with some studies showing increases and others decreases. In contrast to cichlids, species of armoured catfish, that are routinely exposed to water of low oxygen content, do not display hypoxic bradycardia. Under hypoxia there are early changes in glucose trafficking suggestive of activation of glycolysis before lactate accumulation. Thereafter, heart glycogen is mobilized and lactate accumulates in both heart and blood, in some species to very high levels. Heart performance under hypoxia is enhanced by defense of intracellular pH. A functional sarcoplasmic reticulum and binding of hexokinase to the outer mitochondrial membrane may also play a role in cardioprotection. Maintenance of heart performance under hypoxia may relate to a tradeoff between air breathing via a modified stomach and circulatory demands for digestion.
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Affiliation(s)
- William R Driedzic
- Department of Ocean Sciences, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, Canada
| | - Tyson J MacCormack
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, New Brunswick, Canada
| | - Simon G Lamarre
- Département de Biologie, Université de Moncton, Moncton, New Brunswick, Canada
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23
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Lin Y, Miao LH, Liu B, Xi BW, Pan LK, Ge XP. Molecular cloning and functional characterization of the hypoxia-inducible factor-1α in bighead carp (Aristichthys nobilis). FISH PHYSIOLOGY AND BIOCHEMISTRY 2021; 47:351-364. [PMID: 33474683 DOI: 10.1007/s10695-020-00917-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 12/11/2020] [Indexed: 06/12/2023]
Abstract
HIF-l is the earliest documented and most widely studied hypoxia-inducible factor (HIF) and plays a key role in the cell hypoxia signal transduction pathway. Particularly, the HIF-1α protein is sensitive to oxygen and plays a critical role in hypoxia regulation. This study is the first to report on the molecular cloning and characterization of HIF-1α in bighead carp (Aristichthys nobilis; anHIF-1α). The full-length cDNA of anHIF-1α was 2361 bp, and encodes an estimated 674 amino acids with a predicted molecular mass of 76.10 kDa and a theoretical isoelectric point of 7.72. Moreover, the conserved basic Helix-Loop-Helix domain along with two Per-ARNT-Sim domains (A/B), and C-TAD were identified in this protein. Interestingly, the tertiary structure of the anHIF-1α protein was found to be extremely similar to that of mice. Multiple comparison and phylogenetic tree results demonstrated that anHIF-1α was highly conserved. Under normoxic conditions, anHIF-1α mRNA transcripts could be detected in all tissues examined with the highest expression level in the heart. With gradually decreasing oxygen concentrations, anHIF-1α mRNA level was upregulated significantly in the gill, liver, kidney, spleen, intestine, brain, and muscle tissues (P < 0.05). Similarly, anHIF-1α was expressed in all examined bighead carp tissues, and the results suggested that the upregulation of anHIF-1α at the transcriptional level may be an important stress response adaptation to hypoxia in bighead carp. Finally, based on the tertiary structure comparative analyses between anHIF-1α with mouse HIF-1α, we think the physiological function, and protein structure of HIF-1α could be compared between fish and mammal in the future.
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Affiliation(s)
- Yan Lin
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Ling-Hong Miao
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 214081, China
| | - Bo Liu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 214081, China
| | - Bing-Wen Xi
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 214081, China
| | - Liang-Kun Pan
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Xian-Ping Ge
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China.
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 214081, China.
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24
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Resequencing and SNP discovery of Amur ide (Leuciscus waleckii) provides insights into local adaptations to extreme environments. Sci Rep 2021; 11:5064. [PMID: 33658614 PMCID: PMC7930030 DOI: 10.1038/s41598-021-84652-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 02/18/2021] [Indexed: 01/31/2023] Open
Abstract
Amur ide (Leuciscus waleckii), a Cyprinid species, is broadly distributed in Northeast Asia. Different from its freshwater counterparts, the population in Lake Dali Nor has a strong alkalinity tolerance and can adapt to extremely alkali-saline water with bicarbonate over 50 mmol/L. To uncover the genetic basis of its alkaline adaptation, three populations, including one alkali form from Lake Dali Nor (DL), one freshwater form from its adjacent sister Lake Ganggeng Nor (GG), and one freshwater form from its historical origin, namely, the Songhua River (SH), were analyzed using genome resequencing technology. A total of 679.82 Gb clean data and 38,091,163 high-quality single-nucleotide polymorphism (SNP) loci were detected in the three populations. Nucleotide diversity and population structure analysis revealed that the DL and GG populations have lower nucleotide diversities and different genetic structures than those of the SH population. Selective sweeping showed 21 genes involved in osmoregulatory regulation (DLG1, VIPR1, AKT1, and GNAI1), inflammation and immune responses (DLG1, BRINP1, CTSL, TRAF6, AKT1, STAT3, GNAI1, SEC22b, and PSME4b), and cardiorespiratory development (TRAF6, PSME4b, STAT3, AKT1, and COL9A1) to be associated with alkaline adaption of the DL population. Interestingly, selective pressure (CodeML, MEME, and FEL) methods identified two functional codon sites of VIPR1 to be under positive selection in the DL population. The subsequent 3D protein modeling confirmed that these selected sites will incur changes in protein structure and function in the DL population. In brief, this study provides molecular evidence of population divergence and alkaline adaptation, which will be very useful for revealing the genetic basis of alkaline adaptation in Amur ide.
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do Carmo Neves L, Favero GC, Beier SL, Ferreira NS, Palheta GDA, de Melo NFAC, Luz RK. Physiological and metabolic responses in juvenile Colossoma macropomum exposed to hypoxia. FISH PHYSIOLOGY AND BIOCHEMISTRY 2020; 46:2157-2167. [PMID: 32862281 DOI: 10.1007/s10695-020-00868-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 08/25/2020] [Indexed: 06/11/2023]
Abstract
This study aimed to evaluate hematological, biochemical, and gasometric parameters of tambaqui juveniles (Colossoma macropomum) exposed to hypoxia and subsequent recovery. Six animals were subjected to normoxia (basal) treatment with dissolved oxygen (DO) 6.27 ± 0.42 mg L-1. Water flow and aeration were reduced for 3 days (hypoxia), during which DO was 0.92 ± 0.37 mg L-1. Water flow and aeration were then reestablished with DO remaining similar to basal. The treatments were as follows: normoxia (basal); 24 h after initiating hypoxia (24H); 72 h after initiating hypoxia (72H); 24 h after reestablishing normoxia (24R); 48 h after reestablishing normoxia (48R); and 96 after reestablishing normoxia (96R). The highest glucose level was recorded at 24H (P < 0.05); the highest lactate level was at 72R; and the highest blood pH was at 24H and 72H (P < 0.05). The highest concentration of PvCO2 was at 24H (P < 0.05), while at 96R it was equivalent to basal (P > 0.05). The variable PvO2 was only higher than basal at 24R (P < 0.05). Juvenile C. macropomum managed to reestablish the main stress indicators (glucose and lactate) at 96R, while the other indicators varied during the study, with homeostatic physiology being reestablished during the recovery period.
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Affiliation(s)
- Luanna do Carmo Neves
- Departamento de Zootecnia, Laboratório de Aquacultura, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, n° 6627, Belo Horizonte, MG, CEP 30161-970, Brazil
| | - Gisele Cristina Favero
- Departamento de Zootecnia, Laboratório de Aquacultura, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, n° 6627, Belo Horizonte, MG, CEP 30161-970, Brazil
| | - Suzane Lilian Beier
- Departamento de Clínica e Cirurgia Veterinárias, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, n° 6627, Belo Horizonte, MG, CEP 30161-970, Brazil
| | - Nathália Soares Ferreira
- Departamento de Zootecnia, Laboratório de Aquacultura, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, n° 6627, Belo Horizonte, MG, CEP 30161-970, Brazil
| | - Glauber David Almeida Palheta
- Instituto Socioambiental e dos Recursos Hídricos, Programa de Pós-graduação em Aquicultura e Recursos Aquáticos Tropicais, Universidade Federal Rural da Amazônia, Avenida Presidente Tancredo Neves, N° 2501 Bairro: Terra Firme, Belém, PA, Cep: 66.077-830, Brazil
| | - Nuno Filipe Alves Correia de Melo
- Instituto Socioambiental e dos Recursos Hídricos, Programa de Pós-graduação em Aquicultura e Recursos Aquáticos Tropicais, Universidade Federal Rural da Amazônia, Avenida Presidente Tancredo Neves, N° 2501 Bairro: Terra Firme, Belém, PA, Cep: 66.077-830, Brazil
| | - Ronald Kennedy Luz
- Departamento de Zootecnia, Laboratório de Aquacultura, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, n° 6627, Belo Horizonte, MG, CEP 30161-970, Brazil.
- Escola de Veterinária, Departamento de Zootecnia, Laboratório de Aquacultura - LAQUA, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brazil.
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26
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Dzhalilova D, Makarova O. Differences in Tolerance to Hypoxia: Physiological, Biochemical, and Molecular-Biological Characteristics. Biomedicines 2020; 8:E428. [PMID: 33080959 PMCID: PMC7603118 DOI: 10.3390/biomedicines8100428] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/14/2020] [Accepted: 10/15/2020] [Indexed: 02/07/2023] Open
Abstract
Hypoxia plays an important role in the development of many infectious, inflammatory, and tumor diseases. The predisposition to such disorders is mostly provided by differences in basic tolerance to oxygen deficiency, which we discuss in this review. Except the direct exposure of different-severity hypoxia in decompression chambers or in highland conditions, there are no alternative methods for determining organism tolerance. Due to the variability of the detection methods, differences in many parameters between tolerant and susceptible organisms are still not well-characterized, but some of them can serve as biomarkers of susceptibility to hypoxia. At the moment, several potential biomarkers in conditions after hypoxic exposure have been identified both in experimental animals and humans. The main potential biomarkers are Hypoxia-Inducible Factor (HIF)-1, Heat-Shock Protein 70 (HSP70), and NO. Due to the different mechanisms of various high-altitude diseases, biomarkers may not be highly specific and universal. Therefore, it is extremely important to conduct research on hypoxia susceptibility biomarkers. Moreover, it is important to develop a method for the evaluation of organisms' basic hypoxia tolerance without the necessity of any oxygen deficiency exposure. This can contribute to new personalized medicine approaches' development for diagnostics and the treatment of inflammatory and tumor diseases, taking into account hypoxia tolerance differences.
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Affiliation(s)
- Dzhuliia Dzhalilova
- Department of Immunomorphology of Inflammation, Federal State Budgetary Institution ‘Research Institute of Human Morphology’, Moscow 117418, Russia;
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27
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Qi M, Wu Q, Liu T, Hou Y, Miao Y, Hu M, Liu Q. Hepatopancreas Transcriptome Profiling Analysis Reveals Physiological Responses to Acute Hypoxia and Reoxygenation in Juvenile Qingtian Paddy Field Carp Cyprinus carpio var qingtianensis. Front Physiol 2020; 11:1110. [PMID: 33041847 PMCID: PMC7518031 DOI: 10.3389/fphys.2020.01110] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 08/11/2020] [Indexed: 12/19/2022] Open
Abstract
The Qingtian paddy field carp (Cyprinus carpio var qingtianensis) is a local carp cultivated in the rice field of Qingtian county, Zhejiang province, China. Its high tolerance to hypoxia makes it an ideal organism for studying the molecular regulation mechanism during hypoxia process as well as reoxygenation following hypoxia in fish. In this study, we counted the differentially expressed genes (DEGs) altered during hypoxic exposure and reoxygenation process. The results indicated that 2236 genes (1506 up-regulated genes and 730 down-regulated genes) were differentially expressed between the control and hypoxic groups. The results from Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis indicated that 1152 of 2236 genes were enriched, and those genes participated in energy metabolism, reactive oxygen species (ROS) elimination, acceleration of cell apoptosis, inhibition of growth, and other processes. We found activation of the pentose phosphate pathway in hypoxia treatment, suggesting that carbohydrates not only provide energy for metabolism but also provide NADPH for protecting the body from oxidative damage and ribosomes for promoting RNA synthesis. During reoxygenation, 4509 genes (1865 up-regulated genes and 2644 down-regulated genes) were differentially expressed. The results of KEGG enrichment analysis indicated that 2392 of 4509 genes were enriched, and participated in pyruvate and lactic acid metabolism, synthesis of amino acids and lipids, inhibition of cell apoptosis, regulation of cell growth and differentiation, and other processes. These differentially expressed genes effectively alleviate the body acidosis and promote the normal growth and development of the body. Through the analysis of KEGG pathway enrichment, we observed that the physiological regulation of Qingtian paddy field carp during the processes of hypoxia and reoxygenation is not a simple and reversible process. This work first reported the adaptive mechanism of hypoxia and the recovery mechanism of reoxygenation after hypoxia in common carp, and also provided new insights for the physiological regulation of fish under hypoxia treatment.
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Affiliation(s)
- Ming Qi
- Centre for Research on Environmental Ecology and Fish Nutrition of the Ministry of Agriculture, Shanghai Ocean University, Shanghai, China.,Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
| | - Qianqian Wu
- Graduate School of Human Development and Environment, Kobe University, Kobe, Japan
| | - Tao Liu
- Centre for Research on Environmental Ecology and Fish Nutrition of the Ministry of Agriculture, Shanghai Ocean University, Shanghai, China.,Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
| | - Yiling Hou
- Centre for Research on Environmental Ecology and Fish Nutrition of the Ministry of Agriculture, Shanghai Ocean University, Shanghai, China.,Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
| | - Yixin Miao
- Centre for Research on Environmental Ecology and Fish Nutrition of the Ministry of Agriculture, Shanghai Ocean University, Shanghai, China.,Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
| | - Menghong Hu
- Centre for Research on Environmental Ecology and Fish Nutrition of the Ministry of Agriculture, Shanghai Ocean University, Shanghai, China.,Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
| | - Qigen Liu
- Centre for Research on Environmental Ecology and Fish Nutrition of the Ministry of Agriculture, Shanghai Ocean University, Shanghai, China.,Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
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28
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Cassidy AA, Lamarre SG. Activation of oxygen-responsive pathways is associated with altered protein metabolism in Arctic char exposed to hypoxia. ACTA ACUST UNITED AC 2019; 222:jeb.203901. [PMID: 31704904 DOI: 10.1242/jeb.203901] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 10/30/2019] [Indexed: 11/20/2022]
Abstract
Fish exposed to fluctuating oxygen concentrations often alter their metabolism and/or behaviour to survive. Hypoxia tolerance is typically associated with the ability to reduce energy demand by supressing metabolic processes such as protein synthesis. Arctic char is amongst the most sensitive salmonid to hypoxia, and typically engage in avoidance behaviour when faced with lack of oxygen. We hypothesized that a sensitive species will still have the ability (albeit reduced) to regulate molecular mechanisms during hypoxia. We investigated the tissue-specific response of protein metabolism during hypoxia. Little is known about protein degradation pathways during hypoxia in fish and we predict that protein degradation pathways are differentially regulated and play a role in the hypoxia response. We also studied the regulation of oxygen-responsive cellular signalling pathways [hypoxia inducible factor (HIF), unfolded protein response (UPR) and mTOR pathways] since most of what we know comes from studies on cancerous mammalian cell lines. Arctic char were exposed to cumulative graded hypoxia trials for 3 h at four air saturation levels (100%, 50%, 30% and 15%). The rate of protein synthesis was measured using a flooding dose technique, whereas protein degradation and signalling pathways were assessed by measuring transcripts and phosphorylation of target proteins. Protein synthesis decreased in all tissues measured (liver, muscle, gill, digestive system) except for the heart. Salmonid hearts have preferential access to oxygen through a well-developed coronary artery, therefore the heart is likely to be the last tissue to become hypoxic. Autophagy markers were upregulated in the liver, whereas protein degradation markers were downregulated in the heart during hypoxia. Further work is needed to determine the effects of a decrease in protein degradation on a hypoxic salmonid heart. Our study showed that protein metabolism in Arctic char is altered in a tissue-specific fashion during graded hypoxia, which is in accordance with the responses of the three major hypoxia-sensitive pathways (HIF, UPR and mTOR). The activation pattern of these pathways and the cellular processes that are under their control varies greatly among tissues, sometimes even going in the opposite direction. This study provides new insights on the effects of hypoxia on protein metabolism. Adjustment of these cellular processes is likely to contribute to shifting the fish phenotype into a more hypoxia-tolerant one, if more than one hypoxia event were to occur. Our results warrant studying these adjustments in fish exposed to long-term and diel cycling hypoxia.
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Affiliation(s)
- Alicia A Cassidy
- Département de Biologie, Université de Moncton, Moncton, NB, Canada, E1A 3E9
| | - Simon G Lamarre
- Département de Biologie, Université de Moncton, Moncton, NB, Canada, E1A 3E9
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Lin CJ, Lan YM, Ou MQ, Ji LQ, Lin SD. Expression of miR-217 and HIF-1α/VEGF pathway in patients with diabetic foot ulcer and its effect on angiogenesis of diabetic foot ulcer rats. J Endocrinol Invest 2019; 42:1307-1317. [PMID: 31079353 DOI: 10.1007/s40618-019-01053-2] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 04/30/2019] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To investigate the expression of miR-217 and HIF-1α/VEGF pathway in patients with diabetic foot ulcer (DFU) and its effect on angiogenesis in DFU rats. METHODS The serum levels of miR-217, HIF-1α and VEGF were detected in DFU and simple diabetes mellitus (DM) patients, and healthy controls. DFU rat models were established and treated with miR-217 inhibitors and/or HIF-1α siRNA. The ulcer healing of DFU rats was observed. Besides, ELISA method was performed to detect the serum level of HIF-1α, VEGF and inflammatory factors, immunohistochemical (IHC) method to test the micro-vessel density (MVD), as well as qRT-PCR and Western blot to determine expressions of miR-217, HIF-1α, VEGF, VEGFR2, eNOS, MMP-2, and MMP-9 in tissues. RESULTS The serum levels of miR-217 were up-regulated while HIF-1α and VEGF were down-regulated in DFU patients and rats when compared with DM and healthy controls (all P < 0.05). Dual-luciferase reporter gene assay confirmed that HIF-1α was the direct target gene of miR-217. DFU rats treated with miR-217 inhibitors had decreased foot ulcer area and accelerated ulcer healing, with significantly reduced inflammatory factors (IL-1β, TNF-α and IL-6), as well as elevated HIF-1α and VEGF (all P < 0.05); meanwhile, they remarkably increased the MVD in foot dorsum wound tissues and the protein expressions of HIF-1α, VEGF, VEGFR2, eNOS, MMP-2, and MMP-9 (all P < 0.05). CONCLUSION Inhibiting miR-217 could up-regulate HIF-1α/VEGF pathway to promote angiogenesis and ameliorate inflammation of DFU rats, thereby effectively advancing the healing of ulcerated area.
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Affiliation(s)
- C-J Lin
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Shantou University Medical College, No. 57, Changping Road, Shantou, 515041, Guangdong, People's Republic of China.
| | - Y-M Lan
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Shantou University Medical College, No. 57, Changping Road, Shantou, 515041, Guangdong, People's Republic of China
| | - M-Q Ou
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Shantou University Medical College, No. 57, Changping Road, Shantou, 515041, Guangdong, People's Republic of China
| | - L-Q Ji
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Shantou University Medical College, No. 57, Changping Road, Shantou, 515041, Guangdong, People's Republic of China
| | - S-D Lin
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Shantou University Medical College, No. 57, Changping Road, Shantou, 515041, Guangdong, People's Republic of China
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Burggren WW, Arriaga-Bernal JC, Méndez-Arzate PM, Méndez-Sánchez JF. Metabolic physiology of the Mayan cichlid fish (Mayaheros uropthalmus): Re-examination of classification as an oxyconformer. Comp Biochem Physiol A Mol Integr Physiol 2019; 237:110538. [DOI: 10.1016/j.cbpa.2019.110538] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 08/05/2019] [Accepted: 08/07/2019] [Indexed: 11/16/2022]
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Silva GSD, Matos LVD, Freitas JODS, Campos DFD, Almeida E Val VMFD. Gene expression, genotoxicity, and physiological responses in an Amazonian fish, Colossoma macropomum (CUVIER 1818), exposed to Roundup® and subsequent acute hypoxia. Comp Biochem Physiol C Toxicol Pharmacol 2019; 222:49-58. [PMID: 31004834 DOI: 10.1016/j.cbpc.2019.04.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 02/25/2019] [Accepted: 04/13/2019] [Indexed: 11/15/2022]
Abstract
Roundup® (RD) is a glyphosate-based herbicide used to control weeds in agriculture, and fishponds. In the Amazon, hypoxia is a natural phenomenon in flooded areas. Beyond the challenge of hypoxia, fish need to cope with the use of pesticides as RD that increases in the aquatic environment through the leaching of agricultural areas, and in aquaculture fish tanks. Thus, there is a need to better understand the combined effects of hypoxia and RD contamination for aquatic biota. The aim of this study was to investigate the effects of Roundup® (RD) and subsequent acute hypoxia in the gene expression, genotoxicity, histological and physiological responses of Colossoma macropomum. Fish were individually exposed to four different treatments during 96 h: normoxia (N), hypoxia (H), RD plus normoxia (NRD), and RD plus hypoxia (HRD) (RD concentration represents 75% of LC50 - nominal concentration 15 mg L-1 to C. macropomum). HRD fishes presented down-regulation of hif-1α gene and ras oncogene, while NRD fish presented overexpression of ras; no difference occurred in hif-1α gene expression in both normoxia treatments. The glutathione-S-transferase and catalase activities increased in HRD fish liver compared to NRD. Otherwise, there was no difference in lipoperoxidation (LPO) between all treatments. Genetic Damage Index, measured throughout comet assay in erythrocytes of all treatments, presented similar values, excepted by fish exposed to NRD. As regard as hypoxic exposure, hypoxic fish presented significantly lower values, compared to HRD fishes. An increase in liver histological injuries occurred in H and HRD fish groups. In conclusion, we may affirm that C. macropomum is sensitive concerning RD contamination and that this sensitivity increases when combined with hypoxia.
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Affiliation(s)
- Grazyelle Sebrenski da Silva
- Laboratory of Ecophysiology and Molecular Evolution (LEEM), Brazilian National Institute of Amazonian Research (INPA), 69067-375, André Araújo Avenue, 2936, Petrópolis, Manaus, AM, Brazil; Institute of Biological Science (ICB) in Federal University of Amazonas (UFAM), Av. General Rodrigo Octávio, 6200, Coroado I, 69080-900-Manaus-AM, Brazil.
| | - Lorena Vieira de Matos
- Institute of Biological Science (ICB) in Federal University of Amazonas (UFAM), Av. General Rodrigo Octávio, 6200, Coroado I, 69080-900-Manaus-AM, Brazil
| | - Juliana Oliveira da Silva Freitas
- Laboratory of Ecophysiology and Molecular Evolution (LEEM), Brazilian National Institute of Amazonian Research (INPA), 69067-375, André Araújo Avenue, 2936, Petrópolis, Manaus, AM, Brazil
| | - Derek Felipe de Campos
- Laboratory of Ecophysiology and Molecular Evolution (LEEM), Brazilian National Institute of Amazonian Research (INPA), 69067-375, André Araújo Avenue, 2936, Petrópolis, Manaus, AM, Brazil
| | - Vera Maria Fonseca de Almeida E Val
- Laboratory of Ecophysiology and Molecular Evolution (LEEM), Brazilian National Institute of Amazonian Research (INPA), 69067-375, André Araújo Avenue, 2936, Petrópolis, Manaus, AM, Brazil
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Souza SSD, Silva GSD, Almeida-Val VMFD. Ecophysiology, genotoxicity, histopathology, and gene responses of naphthalene injected Colossoma macropomum (Cuvier, 1818) exposed to hypoxia. Genet Mol Biol 2019; 42:411-424. [PMID: 31259356 PMCID: PMC6726157 DOI: 10.1590/1678-4685-gmb-2018-0084] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 08/01/2018] [Indexed: 11/29/2022] Open
Abstract
The present study aimed to evaluate the biological responses of Colossoma
macropomum to naphthalene injection and subsequent hypoxia
exposure, emphasizing the expression of the tumor suppressor gene
tp53. Tambaquis were intraperitoneally injected with
naphthalene (50 mg/kg) and, after 96 hours, the fish were transferred to
respirometry chambers and, submitted to progressive hypoxia for the
determination of critical PO2. In a subsequent experiment, the fish
received an intraperitoneal injection of naphthalene and were kept for 96 hours
under normoxia. Successively, fish were challenged with acute hypoxia
(PO2<PO2 crit) during 6 hours. We observed that the
PO2 crit was not affected by naphthalene injection. Moreover,
hematological parameters were modulated only in response to hypoxia. Fish with
naphthalene injection plus hypoxia exposure presented altered activity of the
GST and CAT enzymes. Exposure to naphthalene also resulted in DNA damages, which
was not influenced by hypoxia. Hypoxia accentuated the hepatic lesions caused by
naphthalene, as well as it also impaired the transcription of
tp53 in naphtalene injected fish, demonstrating the risks
of contaminating aquatic environments, especially environments where hypoxic
conditions are common and occur on a daily or on seasonal basis, as in the
Amazon basin.
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Affiliation(s)
- Samara Silva de Souza
- Laboratory of Ecophysiology and Molecular Evolution, National Institute for Research in the Amazon (INPA), Manaus, AM, Brazil
| | - Grazyelle Sebrenski da Silva
- Laboratory of Ecophysiology and Molecular Evolution, National Institute for Research in the Amazon (INPA), Manaus, AM, Brazil.,Institute of Biological Science (ICB), Universidade Federal do Amazonas (UFAM), Manaus, AM, Brazil
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Li X, Wang T, Yin S, Zhang G, Cao Q, Wen X, Zhang H, Wang D, Zhu W. The improved energy metabolism and blood oxygen-carrying capacity for pufferfish, Takifugu fasciatus, against acute hypoxia under the regulation of oxygen sensors. FISH PHYSIOLOGY AND BIOCHEMISTRY 2019; 45:323-340. [PMID: 30225749 DOI: 10.1007/s10695-018-0565-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 08/28/2018] [Indexed: 06/08/2023]
Abstract
Hypoxia frequently occurs in aquatic ecosystem, which is influenced by salinity, water temperature, weather, and surface water runoff. In order to shed further light on the evolutionary and adaptive mechanisms in fish under hypoxic condition, the impact of acute hypoxia (1.63 ± 0.2 mg/L) and reoxygenation (7.0 ± 0.3 mg/L) on oxygen sensors, energy metabolism, and hematological indices was evaluated in Takifugu fasciatus. Data from transcriptional level analysis show that the expressions of genes related to oxygen sensors (HIF-1α, PHD2, and VHL) were upregulated in the brain and liver under hypoxia and recovered under reoxygenation. The upregulation of GLUT2, VEGF-A, and EPO in conjugation with VEGF-A protein and hematological indices conferred the rapid adjustments of cellular glucose uptake and blood oxygen-carrying capacities in pufferfish. Higher levels of glycolysis-related mRNAs (HK, PGK1, and PGAM2), HK activity, and proteins (PGK1 and PGAM2) were detected in the brain and liver under hypoxic condition compared with control. Interestingly, the expression of MDH1 at the mRNA, enzyme activity, and protein levels was significantly increased in the brain at 0 or 2 h and in the liver at 8 h under hypoxic condition. In addition, although the enzyme activity and mRNA expression of LDH in the brain were not significantly changed, a persistent upregulation was observed in the liver during hypoxia exposure. This study demonstrated that pufferfish could counterpoise the energetic demands and hematological functional properties evoked by oxygen sensors after hypoxia. Our findings provided new insights into the molecular regulatory mechanism of hypoxia in pufferfish.
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Affiliation(s)
- Xinru Li
- College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Jiangsu, China
- Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China
| | - Tao Wang
- College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Jiangsu, China.
- Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China.
| | - Shaowu Yin
- College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Jiangsu, China.
- Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China.
| | - Guosong Zhang
- College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Jiangsu, China
- Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China
| | - Quanquan Cao
- College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Jiangsu, China
- Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China
| | - Xin Wen
- College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Jiangsu, China
- Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China
| | - Hongye Zhang
- College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Jiangsu, China
- Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China
| | - Dan Wang
- College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Jiangsu, China
- Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China
| | - Wenxu Zhu
- College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Jiangsu, China
- Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China
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Whitehouse LM, Manzon RG. Hypoxia alters the expression of hif-1a mRNA and downstream HIF-1 response genes in embryonic and larval lake whitefish (Coregonus clupeaformis). Comp Biochem Physiol A Mol Integr Physiol 2019; 230:81-90. [PMID: 30659950 DOI: 10.1016/j.cbpa.2019.01.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 12/27/2018] [Accepted: 01/06/2019] [Indexed: 12/12/2022]
Abstract
Lake whitefish (Coregonus clupeaformis) embryos and larvae were exposed to hypoxia at different developmental ages to determine when the cellular response to hypoxia could be initiated. mRNA levels of hypoxia-inducible factor 1α (hif-1α), hsp70, and several HIF-1 target genes were quantified in embryos at 21, 38, 63, 83- and 103-days post fertilisation (dpf) and in larvae at 1, 2, 3- and 4-weeks post hatch (wph) following a 6-hour hypoxia exposure. hsp70 mRNA levels were increased in response to hypoxia at all embryonic ages. By comparison, the first observed change in hif-1α mRNA in response to hypoxia was at 38 dpf, where it was down-regulated from high basal levels, with this response persisting through to 83 dpf. Interestingly, this decrease in hif-1α mRNA coincided with increases in the mRNA levels of the HIF-1 target genes: vegfa (vascular endothelial growth factor A), igfbp1 (insulin-like growth factor binding protein 1), ldha (lactate dehydrogenase a), gapdh (glyceraldehyde-3-phosphate dehydrogenase) and epo (erythropoietin) at select ages. Collectively, this suggests a possible HIF-1-mediated response to hypoxia despite a decrease in hif-1α mRNA. Coinciding with a decrease in basal levels, increases in hif-1α were measured in response to hypoxia at 103 dpf and in larval fish at 1, 2 and 3 wph but there were no consistent increases in HIF-1 target genes at these ages. Overall, our findings indicate that lake whitefish can mount a response to hypoxia early in embryogenesis which may mitigate some of the damaging effects of exposure to low oxygen levels at these critical life history stages.
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Affiliation(s)
- Lindy M Whitehouse
- Department of Biology, University of Regina, 3737 Wascana Parkway, Regina, SK S4S 0A2, Canada
| | - Richard G Manzon
- Department of Biology, University of Regina, 3737 Wascana Parkway, Regina, SK S4S 0A2, Canada.
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Oxygen-dependent distinct expression of hif-1α gene in aerobic and anaerobic tissues of the Amazon Oscar, Astronotus crassipinnis. Comp Biochem Physiol B Biochem Mol Biol 2018; 227:31-38. [PMID: 30201405 DOI: 10.1016/j.cbpb.2018.08.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 08/30/2018] [Accepted: 08/31/2018] [Indexed: 11/24/2022]
Abstract
The aquatic habitats of the Amazon basin present dramatic variation of oxygen level, and, to survive such changes, many aquatic animals developed biochemical and physiological adaptations. The advanced teleost Astronotus crassipinnis (Perciformes) is a fish tolerant to hypoxia and known to endure such naturally variable environments. Hypoxia-Inducible factor-1α (hif-1α) is among the most important and studied genes related to hypoxia-tolerance, maintaining regular cellular function and controlling anaerobic metabolism. In the present work, we studied hif-1α expression and related it to changes in metabolic pathways of Astronotus crassipinnis exposed to 1, 3 and 5 h of hypoxia, followed by 3 h of recovery. The results show that A. crassipinnis depresses aerobic metabolic under hypoxia, with a decrease in glycolysis and oxidative enzyme activities, and increases its anaerobic metabolism with an increase in LDH activity coupled with a decrease in oxygen consumption, which indicates an increase in anaerobic capacity. In addition, the animal differentially regulates hif-1α gene in each tissue studied, with a positive relationship to its metabolic profile, suggesting that hif-1α might be one of the most important induction factors that regulate hypoxia tolerance in this species.
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Gonçalves LMF, Silva MDNPD, Val AL, Almeida-Val VMFD. Differential survivorship of congeneric ornamental fishes under forecasted climate changes are related to anaerobic potential. Genet Mol Biol 2018; 41:107-118. [PMID: 29473936 PMCID: PMC5901506 DOI: 10.1590/1678-4685-gmb-2017-0016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 08/28/2017] [Indexed: 11/24/2022] Open
Abstract
Two Amazonian closely related tetras – cardinal Paracheirodon
axelrodi and green neon P. simulans – were
artificially acclimatized to environmental chambers mimicking future climate
change scenarios (mild, moderate and extreme), using a microcosm facility.
P. simulans survived (100%) to all scenarios after 30 days
exposure, while P. axelrodi presented decreasing survival
percentages according to environmental severity. These differences may be the
reflection of distinct natural acclimatization to microhabitats between the
species, which differ in thermal conditions. Survival responses might be related
to differences in relative gene expression of lactate dehydrogenase (Ldh),
suggesting that P. axelrodi anaerobic potential is lower or
non-existent compared to P. simulans, not tolerating long-term
thermal challenges. Accordingly, increases in temperature and in CO2
levels caused increases in energy demand and resulted in activation of the
anaerobic pathway, as demonstrated by the higher enzyme levels measured in head
and tail portions of both species. Sustained anaerobic glycolysis is possible
when fish live in challenging environments (low oxygen or high temperature). Our
results clearly show that P. simulans has a larger scope for
survival to higher energy demands due to its increased anaerobic potential
compared to P. axelrodi.
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Affiliation(s)
- Luciana Mara Fé Gonçalves
- Laboratório de Ecofisiologia e Evolução Molecular, Instituto Nacional de Pesquisas da Amazônia (LEEM-INPA), Av. André Araújo, 2936; Petrópolis. 69067-375, Manaus, AM, Brazil
| | - Maria de Nazaré Paula da Silva
- Laboratório de Ecofisiologia e Evolução Molecular, Instituto Nacional de Pesquisas da Amazônia (LEEM-INPA), Av. André Araújo, 2936; Petrópolis. 69067-375, Manaus, AM, Brazil
| | - Adalberto Luis Val
- Laboratório de Ecofisiologia e Evolução Molecular, Instituto Nacional de Pesquisas da Amazônia (LEEM-INPA), Av. André Araújo, 2936; Petrópolis. 69067-375, Manaus, AM, Brazil.,Programa de Pós-Graduação em Aquicultura, Universidade Nilton Lins, Av. Professor Nilton Lins, 3259; Parque das Laranjeiras 69058-030, Manaus, AM, Brazil
| | - Vera Maria Fonseca de Almeida-Val
- Laboratório de Ecofisiologia e Evolução Molecular, Instituto Nacional de Pesquisas da Amazônia (LEEM-INPA), Av. André Araújo, 2936; Petrópolis. 69067-375, Manaus, AM, Brazil.,Programa de Pós-Graduação em Aquicultura, Universidade Nilton Lins, Av. Professor Nilton Lins, 3259; Parque das Laranjeiras 69058-030, Manaus, AM, Brazil
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Digital gene expression analysis of Takifugu rubripes brain after acute hypoxia exposure using next-generation sequencing. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2017; 24:12-18. [DOI: 10.1016/j.cbd.2017.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 03/07/2017] [Accepted: 05/27/2017] [Indexed: 01/21/2023]
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Rahman MS, Thomas P. Molecular and biochemical responses of hypoxia exposure in Atlantic croaker collected from hypoxic regions in the northern Gulf of Mexico. PLoS One 2017; 12:e0184341. [PMID: 28886098 PMCID: PMC5590906 DOI: 10.1371/journal.pone.0184341] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Accepted: 08/22/2017] [Indexed: 11/18/2022] Open
Abstract
A major impact of global climate change has been the marked increase worldwide in the incidence of coastal hypoxia (dissolved oxygen, DO<2.0 mg l-1). However, the extent of hypoxia exposure to motile animals such as fish collected from hypoxic waters as well as their molecular and physiological responses to environmental hypoxia exposure are largely unknown. A suite of potential hypoxia exposure biomarkers was evaluated in Atlantic croaker collected from hypoxic and normoxic regions in the northern Gulf of Mexico (nGOM), and in croaker after laboratory exposure to hypoxia (DO: 1.7 mg l-1). Expression of hypoxia-inducible factor-α, hif-α; neuronal nitric oxide synthase, nNOS; and insulin-like growth factor binding protein, igfbp mRNAs and protein carbonyl (PC, an oxidative stress indicator) content were elevated several-fold in brain and liver tissues of croaker collected from nGOM hypoxic sites. All of these molecular and biochemical biomarkers were also upregulated ~3-10-fold in croaker brain and liver tissues within 1–2 days of hypoxia exposure in controlled laboratory experiments. These results suggest that hif-αs, nNOS and igfbp-1 transcripts and PC contents are useful biomarkers of environmental hypoxia exposure and some of its physiological effects, making them important components for improved assessments of long-term impacts of environmental hypoxia on fish populations.
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Affiliation(s)
- Md Saydur Rahman
- School of Earth, Environmental and Marine Sciences, University of Texas Rio Grande Valley, Brownsville, Texas, United States of America
- Marine Science Institute, University of Texas at Austin, Port Aransas, Texas, United States of America
- * E-mail:
| | - Peter Thomas
- Marine Science Institute, University of Texas at Austin, Port Aransas, Texas, United States of America
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Yang S, Yan T, Wu H, Xiao Q, Fu HM, Luo J, Zhou J, Zhao LL, Wang Y, Yang SY, Sun JL, Ye X, Li SJ. Acute hypoxic stress: Effect on blood parameters, antioxidant enzymes, and expression of HIF-1alpha and GLUT-1 genes in largemouth bass (Micropterus salmoides). FISH & SHELLFISH IMMUNOLOGY 2017; 67:449-458. [PMID: 28619363 DOI: 10.1016/j.fsi.2017.06.035] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 06/07/2017] [Accepted: 06/12/2017] [Indexed: 06/07/2023]
Abstract
Dissolved oxygen (DO) plays a crucial role in survival, growth, and normal physiological functions of aquatic organisms. Nevertheless, the mechanisms involved in hypoxic stress and adaptation have not been fully elucidated in Largemouth bass (Micropterus salmoides). To reveal the effect of acute hypoxia on Largemouth bass, we simulated acute hypoxia (DO: 1.2 ± 0.2 mg/L) in the laboratory and analyzed physiological parameters (RBCs, Hb, SOD, CAT, NA+/K+-ATPase, GPx, and MDA) and gene expression (HIF-1alpha and GLUT-1) in Largemouth bass exposed to various durations of acute hypoxia (0, 1, 2, 4, 8, 12, and 24 h). Our results indicated that acute hypoxic exposure significantly increased RBCs but decreased Hb. In addition, antioxidant enzyme activity was enhanced significantly in the liver and muscles at the initial stage of acute hypoxic exposure, but decreased significantly in gills during the entire process of hypoxic exposure. Furthermore, the expression levels of HIF-1alpha and GLUT-1 mRNA were significantly up-regulated in Largemouth bass under acute hypoxic exposure. In conclusion, our study provides a valuable basis for further elucidation of hypoxic adaptation and facilitates husbandry for an economically valuable species.
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Affiliation(s)
- S Yang
- College of Animal Science and Technology, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan, 611130, China
| | - T Yan
- College of Animal Science and Technology, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan, 611130, China
| | - H Wu
- College of Animal Science and Technology, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan, 611130, China
| | - Q Xiao
- College of Animal Science and Technology, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan, 611130, China
| | - H M Fu
- College of Animal Science and Technology, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan, 611130, China
| | - J Luo
- College of Animal Science and Technology, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan, 611130, China
| | - J Zhou
- Fisheries Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 611731, China.
| | - L L Zhao
- College of Animal Science and Technology, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan, 611130, China.
| | - Y Wang
- College of Animal Science and Technology, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan, 611130, China
| | - S Y Yang
- College of Animal Science and Technology, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan, 611130, China
| | - J L Sun
- College of Animal Science and Technology, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan, 611130, China
| | - X Ye
- Key Laboratory of Tropical & Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture, China; Pearl River Fisheries Research Institute Chinese Academy of Fishery Sciences, GuangZhou, 510380, China
| | - S J Li
- Key Laboratory of Tropical & Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture, China; Pearl River Fisheries Research Institute Chinese Academy of Fishery Sciences, GuangZhou, 510380, China
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40
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Zhang G, Zhao C, Wang Q, Gu Y, Li Z, Tao P, Chen J, Yin S. Identification of HIF-1 signaling pathway in Pelteobagrus vachelli using RNA-Seq: effects of acute hypoxia and reoxygenation on oxygen sensors, respiratory metabolism, and hematology indices. J Comp Physiol B 2017; 187:931-943. [PMID: 28353178 DOI: 10.1007/s00360-017-1083-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 02/26/2017] [Accepted: 03/06/2017] [Indexed: 12/19/2022]
Abstract
Oxygen is a vital element in aquatic environments. The concentration of oxygen to which aquatic organisms are exposed is influenced by salinity, water temperature, weather, and surface water runoff. Hypoxia has a serious effect on fish populations, and can lead to the loss of habitat and die-offs. Therefore, in the present study we used next-generation sequencing technology to characterize the transcriptomes of Pelteobagrus vachelli and identified 70 candidate genes in the HIF-1 signaling pathway that are important for the hypoxic response in all metazoan species. For the first time, the present study reported the effects of acute hypoxia and reoxygenation on oxygen sensors, respiratory metabolism, and hematology indices in P. vachelli. The predicted physiological adjustments show that P. vachelli's blood oxygen-carrying capacity was increased through increased RBC, HB, and SI after hypoxia exposure. Glycolysis-related enzyme activities (PFK, HK, and PK) and LDH in the brain and liver also increased, indicating a rise in anaerobic metabolism. The observed reduction in oxidative enzyme level (CS) in the liver during hypoxia suggests a concomitant depression in aerobic metabolism. There were significant increases in oxygen sensor mRNA expression and HIF-1α protein expression during hypoxia and reoxygenation exposure, suggesting that the HIF-1 signaling pathway was activated in the liver and brain of P. vachelli in response to acute hypoxia and reoxygenation. Our findings suggest that oxygen sensors (e.g., HIF-1α) of P. vachelli are potentially useful biomarkers of environmental hypoxic exposure. These data contribute to a better understanding of the molecular mechanisms of the hypoxia signaling pathway in fish under hypoxia and reoxygenation.
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Affiliation(s)
- Guosong Zhang
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Jiangsu, China.,Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China
| | - Cheng Zhao
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Jiangsu, China.,Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China
| | - Qintao Wang
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Jiangsu, China
| | - Yichun Gu
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Jiangsu, China
| | - Zecheng Li
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Jiangsu, China
| | - Panfeng Tao
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Jiangsu, China
| | - Jiawei Chen
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Jiangsu, China
| | - Shaowu Yin
- College of Life Sciences, Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Jiangsu, China. .,Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, Jiangsu, China.
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41
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Li HL, Gu XH, Li BJ, Chen X, Lin HR, Xia JH. Characterization and functional analysis of hypoxia-inducible factor HIF1α and its inhibitor HIF1αn in tilapia. PLoS One 2017; 12:e0173478. [PMID: 28278251 PMCID: PMC5344420 DOI: 10.1371/journal.pone.0173478] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 02/21/2017] [Indexed: 11/18/2022] Open
Abstract
Hypoxia is a major cause of fish morbidity and mortality in the aquatic environment. Hypoxia-inducible factors are very important modulators in the transcriptional response to hypoxic stress. In this study, we characterized and conducted functional analysis of hypoxia-inducible factor HIF1α and its inhibitor HIF1αn in Nile tilapia (Oreochromis niloticus). By cloning and Sanger sequencing, we obtained the full length cDNA sequences for HIF1α (2686bp) and HIF1αn (1308bp), respectively. The CDS of HIF1α includes 15 exons encoding 768 amino acid residues and the CDS of HIF1αn contains 8 exons encoding 354 amino acid residues. The complete CDS sequences of HIF1α and HIF1αn cloned from tilapia shared very high homology with known genes from other fishes. HIF1α show differentiated expression in different tissues (brain, heart, gill, spleen, liver) and at different hypoxia exposure times (6h, 12h, 24h). HIF1αn expression level under hypoxia is generally increased (6h, 12h, 24h) and shows extremely highly upregulation in brain tissue under hypoxia. A functional determination site analysis in the protein sequences between fish and land animals identified 21 amino acid sites in HIF1α and 2 sites in HIF1αn as significantly associated sites (α = 0.05). Phylogenetic tree-based positive selection analysis suggested 22 sites in HIF1α as positively selected sites with a p-value of at least 95% for fish lineages compared to the land animals. Our study could be important for clarifying the mechanism of fish adaptation to aquatic hypoxia environment.
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Affiliation(s)
- Hong Lian Li
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Provincial Key Laboratory for Aquatic Economic Animals, College of Life Sciences, Sun Yat-Sen University, Guangzhou, PR China
| | - Xiao Hui Gu
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Provincial Key Laboratory for Aquatic Economic Animals, College of Life Sciences, Sun Yat-Sen University, Guangzhou, PR China
| | - Bi Jun Li
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Provincial Key Laboratory for Aquatic Economic Animals, College of Life Sciences, Sun Yat-Sen University, Guangzhou, PR China
| | - Xiao Chen
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Provincial Key Laboratory for Aquatic Economic Animals, College of Life Sciences, Sun Yat-Sen University, Guangzhou, PR China
| | - Hao Ran Lin
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Provincial Key Laboratory for Aquatic Economic Animals, College of Life Sciences, Sun Yat-Sen University, Guangzhou, PR China
| | - Jun Hong Xia
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Provincial Key Laboratory for Aquatic Economic Animals, College of Life Sciences, Sun Yat-Sen University, Guangzhou, PR China
- * E-mail:
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