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Han P, Qiao Y, He J, Wang X. Stress responses to warming in Japanese flounder (Paralichthys olivaceus) from different environmental scenarios. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 897:165341. [PMID: 37414161 DOI: 10.1016/j.scitotenv.2023.165341] [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: 03/30/2023] [Revised: 05/18/2023] [Accepted: 07/03/2023] [Indexed: 07/08/2023]
Abstract
Japanese flounder (Paralichthys olivaceus) is one of cold-water species widely farmed in Asia. In recent years, the increased frequency of extreme weather events caused by global warming has led to serious impact on Japanese flounder. Therefore, it is crucial to understand the effects of representative coastal economic fish under increasing water temperature. In this study, we investigated the histological and apoptosis responses, oxidative stress and transcriptomic profile in the liver of Japanese flounder exposed to gradual temperature rise (GTR) and abrupt temperature rise (ATR). The histological results showed liver cells in ATR group were the most serious in all three groups including vacuolar degeneration and inflammatory infiltration, and had more apoptosis cells than GTR group detected by TUNEL staining. These further indicated ATR stress caused more severe damage than GTR stress. Compared with control group, the biochemical analysis showed significantly changes in two kinds of heat stress, including GPT, GOT and D-Glc in serum, ATPase, Glycogen, TG, TC, ROS, SOD and CAT in liver. In addition, the RNA-Seq was used to analyze the response mechanism in Japanese flounder liver after heat stress. A total of 313 and 644 differentially expressed genes (DEGs) were identified in GTR and ATR groups, respectively. Further pathway enrichment of these DEGs revealed that heat stress affected cell cycle, protein processing and transportation, DNA replication and other biological processes. Notably, protein processing pathway in the endoplasmic reticulum (ER) was enriched significantly in KEGG and GSEA enrichment analysis, and the expression of ATF4 and JNK was significantly up-regulated in both GTR and ATR groups, while CHOP and TRAF2 were high expressed in GTR and ATR groups, respectively. In conclusion, heat stress could cause tissue damage, inflammation, oxidative stress and ER stress in the liver of Japanese flounder. The present study would provide insight into the reference for the adaptive mechanisms of economic fish in face of increasing water temperature caused by global warming.
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Affiliation(s)
- Ping Han
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, Qingdao, Shandong, China.
| | - Yingjie Qiao
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, Qingdao, Shandong, China.
| | - Jiayi He
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, Qingdao, Shandong, China
| | - Xubo Wang
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, Ocean University of China, Qingdao, Shandong, China; Key Laboratory of Aquacultural Biotechnology (Ningbo University), Ministry of Education, Ningbo, Zhejiang, China; National Engineering Research Laboratory of marine biotechnology and Engineering, Ningbo University, Ningbo, Zhejiang, China; Key Laboratory of Marine Biotechnology of Zhejiang Province, Ningbo University, Ningbo, Zhejiang, China.
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Yan W, Qiao Y, He J, Qu J, Liu Y, Zhang Q, Wang X. Molecular Mechanism Based on Histopathology, Antioxidant System and Transcriptomic Profiles in Heat Stress Response in the Gills of Japanese Flounder. Int J Mol Sci 2022; 23:ijms23063286. [PMID: 35328705 PMCID: PMC8955770 DOI: 10.3390/ijms23063286] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/11/2022] [Accepted: 03/11/2022] [Indexed: 02/01/2023] Open
Abstract
As an economically important flatfish in Asia, Japanese flounder is threatened by continuously rising temperatures due to global warming. To understand the molecular responses of this species to temperature stress, adult Japanese flounder individuals were treated with two kinds of heat stress—a gradual temperature rise (GTR) and an abrupt temperature rise (ATR)—in aquaria under experimental conditions. Changes in histopathology, programmed cell death levels and the oxidative stress status of gills were investigated. Histopathology showed that the damage caused by ATR stress was more serious. TUNEL signals confirmed this result, showing more programmed cell death in the ATR group. In addition, reactive oxygen species (ROS) levels and the 8-O-hDG contents of both the GTR and ATR groups increased significantly, and the total superoxide dismutase (T-SOD) activities and total antioxidant capacity (T-AOC) levels decreased in the two stressed groups, which showed damage to antioxidant systems. Meanwhile, RNA-seq was utilized to illustrate the molecular mechanisms underyling gill damage. Compared to the control group of 18 °C, 507 differentially expressed genes (DEGs) were screened in the GTR group; 341 were up-regulated and 166 were down-regulated, and pathway enrichment analysis indicated that they were involved in regulation and adaptation, including chaperone and folding catalyst pathways, the mitogen-activated protein kinase signaling (MAPK) pathway and DNA replication protein pathways. After ATR stress, 1070 DEGs were identified, 627 were up-regulated and 423 were down-regulated, and most DEGs were involved in chaperone and folding catalyst and DNA-related pathways, such as DNA replication proteins and nucleotide excision repair. The annotation of DEGs showed the great importance of heat shock proteins (HSPs) in protecting Japanese flounder from heat stress injury; 12 hsp genes were found after GTR, while 5 hsp genes were found after ATR. In summary, our study records gill dysfunction after heat stress, with different response patterns observed in the two experimental designs; chaperones were activated to defend heat stress after GTR, while replication was almost abandoned due to the severe damage consequent on ATR stress.
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Affiliation(s)
| | | | | | | | | | | | - Xubo Wang
- Correspondence: ; Tel.: +86-532-82031986; Fax: +86-532-82031802
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Rajkumar MS, Garg R, Jain M. Genome-wide discovery of DNA polymorphisms via resequencing of chickpea cultivars with contrasting response to drought stress. PHYSIOLOGIA PLANTARUM 2022; 174:e13611. [PMID: 34957568 DOI: 10.1111/ppl.13611] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/29/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
Drought stress limits plant growth, resulting in a significant yield loss in chickpea. The diversification in genome sequence and selective sweep of allele(s) in different genotypes of a crop plant may play an important role in the determination of agronomic traits, including drought stress response. We investigated, via whole genome resequencing, the DNA polymorphisms between two sets of chickpea genotypes with contrasting drought stress responses (3 drought-sensitive vs. 6 drought-tolerant). In total, 36,406 single nucleotide polymorphisms (SNPs) and 3407 insertions or deletions (InDels) differentiating drought-sensitive and drought-tolerant chickpea genotypes were identified. Interestingly, most (91%) of these DNA polymorphisms were located in chromosomes 1 and 4. The genes harboring DNA polymorphisms in their promoter and/or coding regions and exhibiting differential expression under control and/or drought stress conditions between/within the drought-sensitive and tolerant genotypes were found implicated in the stress response. Furthermore, we identified DNA polymorphisms within the cis-regulatory motifs in the promoter region of abiotic stress-related and QTL-associated genes, which might contribute to the differential expression of the candidate drought-responsive genes. In addition, we revealed the effect of nonsynonymous SNPs on mutational sensitivity and stability of the encoded proteins. Taken together, we identified DNA polymorphisms having relevance in drought stress response and revealed candidate genes to engineer drought tolerance in chickpea.
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Affiliation(s)
- Mohan Singh Rajkumar
- School of Computational & Integrative Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Rohini Garg
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Gautam Buddha Nagar, India
| | - Mukesh Jain
- School of Computational & Integrative Sciences, Jawaharlal Nehru University, New Delhi, India
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4
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Rajkumar MS, Jain M, Garg R. Discovery of DNA polymorphisms via whole genome resequencing and their functional relevance in salinity stress response in chickpea. PHYSIOLOGIA PLANTARUM 2021; 173:1573-1586. [PMID: 34287918 DOI: 10.1111/ppl.13507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 07/07/2021] [Accepted: 07/15/2021] [Indexed: 06/13/2023]
Abstract
Salinity stress is one of the major constraints for plant growth and yield. The salinity stress response of different genotypes of crop plants may largely be governed by DNA polymorphisms. To determine the molecular genetic factors involved in salinity stress tolerance in chickpea, we performed a whole genome resequencing data analysis of three each of salinity-sensitive and salinity-tolerant genotypes. A total of 6173 single nucleotide polymorphisms and 920 insertions and deletions differentiating the chickpea genotypes with contrasting salinity stress responses were identified. Gene ontology analysis revealed the enrichment of functional terms related to stress response and development among the genes harboring DNA polymorphisms in their promoter and/or coding regions. DNA polymorphisms located within the cis-regulatory motifs of the quantitative trait loci (QTL)-associated and abiotic stress related genes were identified, which may influence salinity stress response via modulating binding affinity of the transcription factors. Several genes including QTL-associated and abiotic stress response related genes harboring DNA polymorphisms exhibited differential expression in response to salinity stress especially at the reproductive stage of development in the salinity-tolerant genotype. Furthermore, effects of non-synonymous DNA polymorphisms on mutational sensitivity and structural integrity of the encoded proteins by the candidate QTL-associated and abiotic stress response related genes were revealed. The results suggest that DNA polymorphisms may determine salinity stress response via influencing differential gene expression in genotype and/or stage-dependent manner. Altogether, we provide a high-quality set of DNA polymorphisms and candidate genes that may govern salinity stress tolerance in chickpea.
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Affiliation(s)
- Mohan Singh Rajkumar
- School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Mukesh Jain
- School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Rohini Garg
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Gautam Buddha Nagar, India
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Jin RM, Huang HZ, Zhou Y, Wang YY, Fu HC, Li Z, Fu XZ, Li NQ. Characterization of mandarin fish (Siniperca chuatsi) IL-6 and IL-6 signal transducer and the association between their SNPs and resistance to ISKNV disease. FISH & SHELLFISH IMMUNOLOGY 2021; 113:139-147. [PMID: 33848638 DOI: 10.1016/j.fsi.2021.04.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 03/02/2021] [Accepted: 04/03/2021] [Indexed: 06/12/2023]
Abstract
In fish, interleukin-6 (IL-6) is a very important immune-regulatory cytokine that plays a polyfunctional role in inflammation, metabolism, regeneration, and neural processes. IL-6 signal transducer (IL-6ST) is a specific receptor for IL-6 and expressed mainly in immune cells and hepatocytes. In this study, the complete cDNA and genomic DNA sequences of mandarin fish (Siniperca chuatsi) IL-6 and IL-6ST genes were identified and analyzed. Quantitative real-time PCR showed that IL-6 and IL-6ST were chiefly expressed in the immune organs. After challenge with infectious spleen and kidney necrosis virus (ISKNV), the expression levels of IL-6 were significantly up-regulated after 6 h and 24 h in the head kidney and spleen, respectively (p < 0.01), the peak value for both reached at 72 h, IL-6ST increased significantly after 120 h with a peak at 168 h in the head kidney (p < 0.01) and improved markedly at 168 h in the spleen (p < 0.01). Besides, IL-6 and IL-6ST have been identified 3 and 8 single nucleotide polymorphisms (SNPs), respectively. Statistical analysis showed that one SNP locus (1625C/T) in the coding region of IL-6 was significantly related to the resistance of mandarin fish against ISKNV. The 1625C→T locus in the coding region of IL-6 is a synonymous mutation; compared with the susceptible group, the frequency of allele T in the disease resistance group was significantly higher, which may be due to the rare codon produced by the mutation affecting translation. The involvement of IL-6 and IL-6ST in response to ISKNV infection in mandarin fish clearly indicate that the role of SNP markers in IL-6 was associated with the ISKNV resistance, which was demonstrated for the first time in our results. Thus, the current study may provide fundamental information for further breeding of mandarin fish with resistance to ISKNV infection.
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Affiliation(s)
- Rui-Ming Jin
- School of Basic Medicine and Biological Sciences, Fisheries Research Institute, Soochow University, Jiangsu Province, Suzhou, 215123, China
| | - He-Zhong Huang
- School of Basic Medicine and Biological Sciences, Fisheries Research Institute, Soochow University, Jiangsu Province, Suzhou, 215123, China.
| | - Yu Zhou
- School of Basic Medicine and Biological Sciences, Fisheries Research Institute, Soochow University, Jiangsu Province, Suzhou, 215123, China
| | - Ying-Ying Wang
- School of Basic Medicine and Biological Sciences, Fisheries Research Institute, Soochow University, Jiangsu Province, Suzhou, 215123, China
| | - Huang-Cui Fu
- School of Basic Medicine and Biological Sciences, Fisheries Research Institute, Soochow University, Jiangsu Province, Suzhou, 215123, China
| | - Ze Li
- School of Basic Medicine and Biological Sciences, Fisheries Research Institute, Soochow University, Jiangsu Province, Suzhou, 215123, China
| | - Xiao-Zhe Fu
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of Fishery Drug Development, Ministry of Agriculture and Rural Affairs, Key Laboratory of Aquatic Animal Immune Technology, Guangdong Provinces, Guangzhou, 510380, China
| | - Ning-Qiu Li
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of Fishery Drug Development, Ministry of Agriculture and Rural Affairs, Key Laboratory of Aquatic Animal Immune Technology, Guangdong Provinces, Guangzhou, 510380, China
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6
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Zhang C, Lu K, Wang J, Qian Q, Yuan X, Pu C. Molecular cloning, expression HSP70 and its response to bacterial challenge and heat stress in Microptenus salmoides. FISH PHYSIOLOGY AND BIOCHEMISTRY 2020; 46:2389-2402. [PMID: 33029752 DOI: 10.1007/s10695-020-00883-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 09/27/2020] [Indexed: 06/11/2023]
Abstract
The gene encoding HSP70 was isolated from Microptenus salmoides by homologous cloning and rapid amplification of cDNA ends (RACE). The HSP70 transcripts were 2116 bp long and contained 1953 open reading frames encoding proteins of 650 amino acids with a molecular mass of 71.2 kDa and theoretical isoelectric point of 5.22. The qRT-PCR analysis showed that the HSP70 gene was differentially expressed in various tissues under normal conditions, and the highest HSP70 level was observed in the spleen and the lowest levels in the muscle and heart. The clear time-dependent expression level of HSP70 was observed after bacterial challenge and heat stress. A significant increase in HSP70 expression level was detected and reached a maximum at 3 h and 6 h in liver, spleens and gill tissues after Aeromonas hydrophila infection and heat stress, respectively (P < 0.05). As time progressed, the expression of HSP70 transcript was downregulated and mostly dropped back to the original level at 48 h. The concentration of cortisol, aspartate aminotransferase (AST) and alanine aminotransferase (ALT) increased as the time of stress progressed, with the highest level found on 3 h and later declined rapidly and reached to the control levels at the 48 h. Those results suggested that HSP70 was involved in the immune response to bacterial challenge and heat stress. The cloning and expression analysis of the HSP70 provide theoretical basis to further study the mechanism of anti-adverseness in Microptenus salmoides.
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Affiliation(s)
- Chunnuan Zhang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471023, People's Republic of China.
| | - Kangle Lu
- Laboratory of Aquatic Animal Nutrition and Physiology, Fisheries College, Jimei University, Xiamen, 361021, China
| | - Junhui Wang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471023, People's Republic of China
| | - Qi Qian
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471023, People's Republic of China
| | - Xiaoyu Yuan
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471023, People's Republic of China
| | - Changchang Pu
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471023, People's Republic of China
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7
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Shilova VY, Zatsepina OG, Garbuz DG, Funikov SY, Zelentsova ES, Schostak NG, Kulikov AM, Evgen'ev MB. Heat shock protein 70 from a thermotolerant Diptera species provides higher thermoresistance to Drosophila larvae than correspondent endogenous gene. INSECT MOLECULAR BIOLOGY 2018; 27:61-72. [PMID: 28796386 DOI: 10.1111/imb.12339] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Heat shock proteins (Hsp70s) from two Diptera species that drastically differ in their heat shock response and longevity were investigated. Drosophila melanogaster is characterized by the absence of Hsp70 and other hsps under normal conditions and the dramatic induction of hsp synthesis after temperature elevation. The other Diptera species examined belongs to the Stratiomyidae family (Stratiomys singularior) and exhibits high levels of inducible Hsp70 under normal conditions coupled with a thermotolerant phenotype and much longer lifespan. To evaluate the impact of hsp70 genes on thermotolerance and longevity, we made use of a D. melanogaster strain that lacks all hsp70 genes. We introduced single copies of either S. singularior or D. melanogaster hsp70 into this strain and monitored the obtained transgenic flies in terms of thermotolerance and longevity. We developed transgenic strains containing the S. singularior hsp70 gene under control of a D. melanogaster hsp70 promoter. Although these adult flies did synthesize the corresponding mRNA after heat shock, they were not superior to the flies containing a single copy of D. melanogaster hsp70 in thermotolerance and longevity. By contrast, Stratiomyidae Hsp70 provided significantly higher thermotolerance at the larval stage in comparison with endogenous Hsp70.
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Affiliation(s)
- V Y Shilova
- Engelhardt Institute of Molecular Biology, RAS, Moscow, Russia
- Institute of Cell Biophysics, RAS, Pushchino, Moscow, Russia
| | - O G Zatsepina
- Engelhardt Institute of Molecular Biology, RAS, Moscow, Russia
| | - D G Garbuz
- Engelhardt Institute of Molecular Biology, RAS, Moscow, Russia
| | - S Y Funikov
- Engelhardt Institute of Molecular Biology, RAS, Moscow, Russia
| | - E S Zelentsova
- Engelhardt Institute of Molecular Biology, RAS, Moscow, Russia
| | - N G Schostak
- Engelhardt Institute of Molecular Biology, RAS, Moscow, Russia
| | - A M Kulikov
- Institute of Developmental Biology, RAS, Moscow, Russia
| | - M B Evgen'ev
- Engelhardt Institute of Molecular Biology, RAS, Moscow, Russia
- Institute of Cell Biophysics, RAS, Pushchino, Moscow, Russia
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Liu Y, Ma D, Zhao C, Xiao Z, Xu S, Xiao Y, Wang Y, Liu Q, Li J. The expression pattern of hsp70 plays a critical role in thermal tolerance of marine demersal fish: Multilevel responses of Paralichthys olivaceus and its hybrids (P. olivaceus ♀ × P. dentatus ♂) to chronic and acute heat stress. MARINE ENVIRONMENTAL RESEARCH 2017; 129:386-395. [PMID: 28689860 DOI: 10.1016/j.marenvres.2017.06.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 05/10/2017] [Accepted: 06/22/2017] [Indexed: 06/07/2023]
Abstract
Ocean warming has multifaceted impacts on marine organisms. This study investigated the different responses of Paralichthys olivaceus and the hybrids (P. olivaceus ♀ × P. dentatus ♂) to chronic and acute heat stress. By comparing their survival, behavioural and histological changes, we found that the hybrids possess a better thermal tolerance with a higher cumulative survival rate (CSR), relatively fewer behavioural changes and less gill damage. Moreover, we analysed the relationship between thermal tolerance and the hsp70 expression pattern and found that thermal tolerant species (the hybrids) exhibited higher threshold induction temperature, shorter durations, stronger magnitudes and a delay in hsp70 expression. We speculated that the expression mode of hsp70, rather than itself, plays a critical role in thermal tolerance. These findings would improve the understanding of hsp70 in future marine climate research and help clarify the profound effects of rising temperature on marine demersal fishes.
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Affiliation(s)
- Yifan Liu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Daoyuan Ma
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Chunyan Zhao
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhizhong Xiao
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Shihong Xu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Yongshuang Xiao
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Yanfeng Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Qinghua Liu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
| | - Jun Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
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Wu H, Liu J, Lu Z, Xu L, Ji C, Wang Q, Zhao J. Metabolite and gene expression responses in juvenile flounder Paralichthys olivaceus exposed to reduced salinities. FISH & SHELLFISH IMMUNOLOGY 2017; 63:417-423. [PMID: 28245987 DOI: 10.1016/j.fsi.2017.02.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 02/23/2017] [Accepted: 02/24/2017] [Indexed: 06/06/2023]
Abstract
Seawater salinity is one of the most important changeable environmental factors influencing the behavior, survival, growth and production of marine organisms. In this work, metabolite and gene expression profiles were used to elucidate the biological effects of reduced salinities in juvenile flounder Paralichthys olivaceus. Metabolic profiling indicated that both reduced salinities (23.3‰ and 15.6‰) enhanced proteolysis and disturbed osmotic regulation and energy metabolism in juvenile flounder P. olivaceus. Furthermore, the low salinity (15.6‰) enhanced anaerobic metabolism indicated by the elevated lactate in flounder tissue extracts. Gene expression profiles exhibited that reduced salinities could induce immune stress and oxidative stress and disturb energy metabolism in juvenile flounder P. olivaceus. In addition, reduced salinities might promote the growth and gonadal differentiation in juvenile flounder P. olivaceus.
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Affiliation(s)
- Huifeng Wu
- Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes, YICCAS, Yantai 264003, PR China.
| | - Jialin Liu
- Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes, YICCAS, Yantai 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Zhen Lu
- Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes, YICCAS, Yantai 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Lanlan Xu
- Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes, YICCAS, Yantai 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Chenglong Ji
- Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes, YICCAS, Yantai 264003, PR China
| | - Qing Wang
- Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes, YICCAS, Yantai 264003, PR China
| | - Jianmin Zhao
- Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes, YICCAS, Yantai 264003, PR China
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Status and future perspectives of single nucleotide polymorphisms (SNPs) markers in farmed fishes: Way ahead using next generation sequencing. GENE REPORTS 2017. [DOI: 10.1016/j.genrep.2016.12.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Han YL, Hou CC, Du C, Zhu JQ. Molecular cloning and expression analysis of five heat shock protein 70 (HSP70) family members in Lateolabrax maculatus with Vibrio harveyi infection. FISH & SHELLFISH IMMUNOLOGY 2017; 60:299-310. [PMID: 27908666 DOI: 10.1016/j.fsi.2016.11.056] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 11/22/2016] [Accepted: 11/25/2016] [Indexed: 06/06/2023]
Abstract
Heat shock proteins 70 (HSP70s) are molecular chaperones that aid in protection against environmental stress. In this study, we cloned and characterized five members of the HSP70 family (designated as HSPa1a, HSC70-1, HSC70-2, HSPa4 and HSPa14) from Lateolabrax maculatus using rapid amplification cDNA ends (RACE). Multiple sequence alignment and structural analysis revealed that all members of the HSP70 family had a conserved domain architecture, with some distinguishing features unique to each HSP70. Quantitative real-time (qPCR) analysis revealed that all members of the HSP70 family were ubiquitously and differentially expressed in all major types of tissues, including testicular tissue. This indicated that HSP70s have vital and conserved biological functions, and may also function in the development of germinal cells. The expression of mRNA of the five HSP70 family members mRNA expression was significantly increased in the head kidney, intestine and gill after Vibrio harveyi challenge, suggesting that HSP70s play an important role in the immune response.
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Affiliation(s)
- Ying-Li Han
- Key Laboratory of Applied Marine Biotechnology by the Ministry of Education, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China
| | - Cong-Cong Hou
- Key Laboratory of Applied Marine Biotechnology by the Ministry of Education, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China
| | - Chen Du
- Key Laboratory of Applied Marine Biotechnology by the Ministry of Education, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China
| | - Jun-Quan Zhu
- Key Laboratory of Applied Marine Biotechnology by the Ministry of Education, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China.
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12
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The Role of Heat Shock Proteins in Response to Extracellular Stress in Aquatic Organisms. HEAT SHOCK PROTEINS 2017. [DOI: 10.1007/978-3-319-73377-7_9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Cheng L, Ke Y, Yu S, Jing J. Co-delivery of doxorubicin and recombinant plasmid pHSP70-Plk1-shRNA by bacterial magnetosomes for osteosarcoma therapy. Int J Nanomedicine 2016; 11:5277-5286. [PMID: 27822032 PMCID: PMC5087786 DOI: 10.2147/ijn.s115364] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
To explore a novel combination of chemotherapy, gene therapy, and thermotherapy for osteosarcoma, a targeted heat-sensitive co-delivery system based on bacterial magnetosomes (BMs) was developed. The optimal culture conditions of magnetotactic bacteria (MTB) AMB-1 and characterization of BMs were achieved. A recombinant eukaryotic plasmid heat shock protein 70-polo-like kinase 1-short hairpin RNA (pHSP70-Plk1-shRNA) under transcriptional control of a thermosensitive promoter (human HSP70 promoter) was constructed for gene therapy. Doxorubicin (DOX) and pHSP70-Plk1-shRNA were included in the targeted thermosensitive co-delivery system, and in vitro DOX release activity, targeted gene silencing efficiency and in vitro antitumor efficacy were investigated. The results showed that the optimal culture conditions of MTB AMB-1 are an oxygen concentration of 4.0%, a pH value of 7.0, 20 μmol/L of ferrous sulfate, 800 mg/L of sodium nitrate, and 200 mg/L of succinic acid. The temperature of BMs reached 43°C within 3 minutes and could be maintained for 30 minutes by adjusting the magnitude of the alternating magnetic field (AMF). The diameters of BMs, BM-DOX, BM-recombinant eukaryotic plasmid pHSP70-Plk1-shRNA (shPlk1), and BM-DOX-shPlk1 were 43.7±4.6, 79.2±5.4, 88.9±7.8, and 133.5±11.4 nm, respectively. The zeta potentials of BMs, BM-DOX, BM-shPlk1, and BM-DOX-shPlk1 were -29.4±6.9, -9.5±5.6, -16.7±4.8, and -10.3±3.1 mV, respectively. Besides, the system exhibited good release behavior. DOX release rate from BM-DOX-shPlk1 was 54% after incubation with phosphate-buffered saline at 43°C and 37% after incubation with 50% fetal bovine serum, which was significantly higher than that at 37°C (P<0.05). In addition, the expressions of Plk1 mRNA and protein were significantly suppressed in cells treated with BM-DOX-shPlk1 following hyperthermia treatment under the influence of an AMF compared to other groups (P<0.05). Furthermore, evaluation of the effect of in vitro antitumor revealed that BM-DOX-shPlk1 following hyperthermia treatment under the influence of an AMF was significantly more effective than others in tumor inhibition. In conclusion, the new heat-sensitive co-delivery system represents a promising approach for the treatment of cancer.
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Affiliation(s)
- Li Cheng
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei, Anhui, People’s Republic of China
| | - Youqun Ke
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei, Anhui, People’s Republic of China
| | - Shuisheng Yu
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei, Anhui, People’s Republic of China
| | - Juehua Jing
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei, Anhui, People’s Republic of China
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Wang Z, Liu W, Zhou N, Wang H, Li P, Wang M, Zhang Q. Molecular characterization, origin, and evolution of teleost p68 gene family: Insights from Japanese flounder, Paralichthys olivaceus. Mar Genomics 2015; 24 Pt 3:363-70. [PMID: 26388449 DOI: 10.1016/j.margen.2015.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 09/10/2015] [Accepted: 09/11/2015] [Indexed: 11/26/2022]
Abstract
Two rounds of whole-genome duplication occurred in the common ancestor of vertebrates. Later, a third round genome duplication occurred in the teleost fishes. As a prototype member of DEAD-box RNA helicases, the function of p68 helicase in development has been well investigated in human, however, limited information is available regarding the regulatory function of this gene in the development of teleosts. In this study, being an important farmed fish in North China, Japanese flounder (Paralichthys olivaceus) was used as model fish to investigate the role of p68 gene in teleost development. Two p68 genes were first identified from Japanese flounder. Molecular characterization of them was performed by analyzing the exon-intron boundaries. Then, we confirmed that such two teleost p68 genes originated from teleost-specific genome duplication through phylogenetic and synteny analyses. Additionally, comparative analyses of amino acid sequences, variation in selective pressure, and expression profiles of p68 genes revealed probable sub-functionalization fate of teleost p68 genes after the duplication. Therefore, this study supplements the evolutionary properties of teleost p68 gene family and provides the groundwork for further studying the regulatory function of p68 genes in the development of teleosts.
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Affiliation(s)
- Zhongkai Wang
- Key Laboratory for Sustainable Utilization of Marine Fisheries Resources of Chinese Department of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106 Nanjing Road, Qingdao 266071, China; Key Laboratory of Marine Genetics and Breeding, Ministry of Education, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
| | - Wei Liu
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
| | - Nayu Zhou
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
| | - Huizhen Wang
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
| | - Peizhen Li
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
| | - Mengxun Wang
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
| | - Quanqi Zhang
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
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