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Liu Q, Wang X, Wang X, Chen H, Lyu S, Zhang Z, Tian F, Zhang L, Ma S. Dynamic impacts of short-term bath administration of enrofloxacin on juvenile black seabream Acanthopagrus schlegelii. CHEMOSPHERE 2024; 361:142573. [PMID: 38852630 DOI: 10.1016/j.chemosphere.2024.142573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 05/17/2024] [Accepted: 06/07/2024] [Indexed: 06/11/2024]
Abstract
Dynamic impacts of short-term enrofloxacin (ENR) exposure on juvenile marine fish are not well understood, and the underlying mechanisms remain unclear. We therefore investigated the accumulation and elimination of ENR in the liver of juvenile black seabream Acanthopagrus schlegelii. Meanwhile, the dynamic alterations of biochemical parameters and liver transcriptomes after short-term bath immersion and withdrawal treatment were explored. The results indicated that the contents of ENR in the liver were significantly increased after bath administration for 24 h, and then quickly declined to very low concentrations along with the decontamination time increasing. Judging from the changes in biochemical indicators and liver transcriptomic alterations, 0.5 and 1 mg/L ENR exposure for 24 h triggered oxidative stress, impairment of immune system, as well as aberrant lipid metabolism via differential molecular pathways. Interestingly, biochemical and transcriptome analysis as well as integrated biomarker response (IBR) values showed that more significant changes appeared in 1 mg/L ENR group at decontamination periods, which indicated that the impact of high dose ENR on juvenile A. schlegelii may persist even after depuration for 7 days. These results revealed that the risk of short-term bath of 1 mg/L ENR should not be overlooked even after depuration period. Therefore, attention should be paid to the dosage control when administering the drug to juvenile A. schlegelii, and the restoration of physiological disturbance may be an important factor in formulating a reasonable treatment plan.
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Affiliation(s)
- Qian Liu
- Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Scientific Observing and Experimental Station of South China Sea Fishery Resource and Environment, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510300, China; College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Xuefeng Wang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Xufeng Wang
- Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Scientific Observing and Experimental Station of South China Sea Fishery Resource and Environment, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510300, China
| | - Haigang Chen
- Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Scientific Observing and Experimental Station of South China Sea Fishery Resource and Environment, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510300, China
| | - Shaoliang Lyu
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Zhe Zhang
- Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Scientific Observing and Experimental Station of South China Sea Fishery Resource and Environment, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510300, China
| | - Fei Tian
- Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Scientific Observing and Experimental Station of South China Sea Fishery Resource and Environment, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510300, China
| | - Linbao Zhang
- Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Scientific Observing and Experimental Station of South China Sea Fishery Resource and Environment, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510300, China.
| | - Shengwei Ma
- Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Scientific Observing and Experimental Station of South China Sea Fishery Resource and Environment, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510300, China.
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Grinchenko A, Buriak I, Kumeiko V. Invertebrate C1q Domain-Containing Proteins: Molecular Structure, Functional Properties and Biomedical Potential. Mar Drugs 2023; 21:570. [PMID: 37999394 PMCID: PMC10672478 DOI: 10.3390/md21110570] [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: 09/02/2023] [Revised: 10/23/2023] [Accepted: 10/28/2023] [Indexed: 11/25/2023] Open
Abstract
C1q domain-containing proteins (C1qDC proteins) unexpectedly turned out to be widespread molecules among a variety of invertebrates, despite their lack of an integral complement system. Despite the wide distribution in the genomes of various invertebrates, data on the structure and properties of the isolated and characterized C1qDC proteins, which belong to the C1q/TNF superfamily, are sporadic, although they hold great practical potential for the creation of new biotechnologies. This review not only summarizes the current data on the properties of already-isolated or bioengineered C1qDC proteins but also projects further strategies for their study and biomedical application. It has been shown that further broad study of the carbohydrate specificity of the proteins can provide great opportunities, since for many of them only interactions with pathogen-associated molecular patterns (PAMPs) was evaluated and their antimicrobial, antiviral, and fungicidal activities were studied. However, data on the properties of C1qDC proteins, which researchers originally discovered as lectins and therefore studied their fine carbohydrate specificity and antitumor activity, intriguingly show the great potential of this family of proteins for the creation of targeted drug delivery systems, vaccines, and clinical assays for the differential diagnosis of cancer. The ability of invertebrate C1qDC proteins to recognize patterns of aberrant glycosylation of human cell surfaces and interact with mammalian immunoglobulins indicates the great biomedical potential of these molecules.
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Affiliation(s)
- Andrei Grinchenko
- School of Medicine and Life Sciences, Far Eastern Federal University, 690922 Vladivostok, Russia; (A.G.); (I.B.)
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, 690041 Vladivostok, Russia
| | - Ivan Buriak
- School of Medicine and Life Sciences, Far Eastern Federal University, 690922 Vladivostok, Russia; (A.G.); (I.B.)
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, 690041 Vladivostok, Russia
| | - Vadim Kumeiko
- School of Medicine and Life Sciences, Far Eastern Federal University, 690922 Vladivostok, Russia; (A.G.); (I.B.)
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, 690041 Vladivostok, Russia
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Zhang L, Liu Y, Chen H, Cai W. Transcriptome analysis reveals sex-specific alterations in gonads of green mussel exposed to organophosphorus insecticide triazophos. Comp Biochem Physiol C Toxicol Pharmacol 2022; 257:109333. [PMID: 35351620 DOI: 10.1016/j.cbpc.2022.109333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/14/2022] [Accepted: 03/23/2022] [Indexed: 12/20/2022]
Abstract
Triazophos (TP) is a widespread pollutant in aquatic environments. A sex-specific metabolic response in green-lipped mussel Perna viridis to TP exposure was observed in our previous study, and this led us to investigate the mechanisms associated with its toxicity. P. viridis were subjected to chronic exposure (15 days) to TP at 35 μg/L to compare the sex-biased transcriptomic profiles in the gonads of male and female mussels. We identified 632 differentially expressed genes (DEGs) (348 up-regulated and 284 down-regulated) in TP-exposed males, and only 61 DEGs (9 up-regulated and 52 down-regulated) in TP-exposed females. Many DEGs were found to be involved in the nervous, reproductive endocrine, oxidative stress, and immune systems of P. viridis. Additionally, enzymatic activity analysis indicated TP induced neurotoxic effects and oxidative damage to the mussels. Our results demonstrate that the stress response and molecular mechanisms of TP toxicology are different between female and male mussels.
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Affiliation(s)
- Linbao Zhang
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture and Rural Affairs, Guangzhou 510300, PR China; Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangzhou 510300, PR China; South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China.
| | - Yong Liu
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture and Rural Affairs, Guangzhou 510300, PR China; Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangzhou 510300, PR China; South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Haigang Chen
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture and Rural Affairs, Guangzhou 510300, PR China; Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangzhou 510300, PR China; South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Wengui Cai
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture and Rural Affairs, Guangzhou 510300, PR China; Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangzhou 510300, PR China; South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
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Fu C, Li F, Xu C, Wang L, Tian M, Chang Y, Xin Y, Lin R. Transcriptome analysis of the potential molecular mechanism of enteritis in intestine and hepatopancreas of Litopenaeus vannamei. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. PART D, GENOMICS & PROTEOMICS 2022; 42:100964. [PMID: 35092874 DOI: 10.1016/j.cbd.2022.100964] [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: 10/08/2021] [Revised: 01/09/2022] [Accepted: 01/18/2022] [Indexed: 06/14/2023]
Abstract
The prawn, Litopenaeus vannamei (L. vannamei), is the most widely farmed species in the world but the incidence of enteritis in L. vannamei has increased in recent years. However, the pathogenesis of enteritis remains unclear. In this study, high-throughput sequencing was used to analyze the hepatopancreatic and intestinal transcriptome of healthy and enteritis-affected individuals from the same pond. In total, 1209 and 1608 differently-expressed genes (DEGs) were detected in the hepatopancreatic and intestinal transcriptomes, respectively. Significantly changed genes were enriched in the intestinal immune network for IgA Production, Lysosomes, Sphingolipid Metabolism and the Peroxisome Signaling Pathway. Expression of the integrin α4β7 gene was significantly increased in the intestine of L. vannamei with enteritis, while expression of 38 DEGs associated with the lysosome was significantly down-regulated. Furthermore, the expression of sphingolipid metabolism-related enzymes and superoxide dismutase (SOD) genes was also significantly decreased, indicating that abnormal autoimmune function, weak intestinal resistance to external pathogenic microbial invasion, and self-healing ability were important factors associated with enteritis in L. vannamei. In addition, the expression of trypsin and pancreatic lipase was decreased in the hepatopancreas of L. vannamei with enteritis. This study provided new insights into the possible molecular pathogenesis of enteritis in L. vannamei.
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Affiliation(s)
- Chunpeng Fu
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang 262700, China.
| | - Fajun Li
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang 262700, China
| | - Chengjiang Xu
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang 262700, China
| | - Lihua Wang
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang 262700, China
| | - Mengyu Tian
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang 262700, China
| | - Yuqing Chang
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang 262700, China
| | - Yu Xin
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang 262700, China
| | - Ruiqing Lin
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang 262700, China
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Jiang W, Fang J, Du M, Gao Y, Fang J, Jiang Z. Integrated transcriptomics and metabolomics analyses reveal benzo[a]pyrene enhances the toxicity of mercury to the Manila clam, Ruditapes philippinarum. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 213:112038. [PMID: 33636467 DOI: 10.1016/j.ecoenv.2021.112038] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 06/12/2023]
Abstract
Mercury (Hg2+) and benzo[a]pyrene (BaP) are ubiquitous and persistent pollutants with multiple toxicities in bivalve molluscs. Here, the toxicological responses in the gills of Manila clams, Ruditapes philippinarum, to Hg2+ (10 μg L-1), BaP (3 μg L-1), and their mixture were analysed using transcriptomics and metabolomics approaches. Comparisons of the transcriptomes and metabolomes of Hg2+-and/or BaP-treated clams with control animals revealed the involvement of the detoxification metabolism, immune defence, energy-related pathways, and osmotic regulation in the stress response of R. philippinarum. Exposure to Hg2+ alone primarily enhanced the detoxification and energy metabolic pathways by significantly increasing the expression of genes associated with heat-shock proteins and oxidative phosphorylation. However, co-exposure to Hg2+ and BaP caused greater immunotoxicity and disrupted detoxification metabolism, the TCA cycle, glycolysis, and ATP generation. The expression levels of cytochrome P450 1A1 (CYP1A1), multidrug resistance-associated protein 1 (MRP1), and myosin (MYO), and the activity of electron transport system (ETS) in gills were detected, supporting the underlying toxic mechanisms of Hg2+ and BaP. We suggest that the presence of BaP enhances the toxicity of Hg2+ by 1) hampering the detoxification of Hg2+, 2) increasing the immunotoxicity of Hg2+, and 3) constraining energy availability for clams.
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Affiliation(s)
- Weiwei Jiang
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Jinghui Fang
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Meirong Du
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Yaping Gao
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Jianguang Fang
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, China
| | - Zengjie Jiang
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, China.
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Xie B, He Q, Hao R, Zheng Z, Du X. Molecular and functional analysis of PmC1qDC in nacre formation of Pinctada fucata martensii. FISH & SHELLFISH IMMUNOLOGY 2020; 106:621-627. [PMID: 32827655 DOI: 10.1016/j.fsi.2020.08.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 08/05/2020] [Accepted: 08/17/2020] [Indexed: 06/11/2023]
Abstract
The C1q-domain-containing (C1qDC) proteins are a family of proteins characterized by a globular C1q (gC1q) domain in their C-terminus which hold the potential function in the shell formation as shell matrix proteins. In this study, a C1qDC protein was identified and characterized in pearl oyster (Pinctada fucata martensii) (PmC1qDC) to explore its function in nacre formation. The PmC1qDC-deduced protein sequence carried a typical globular C1q (gC1q) domain that possessed the typical 10-stranded β-sandwich fold with a jelly-roll topology common to all C1qDC family members and shared high homology with other gC1q domains. Homologous analysis of PmC1qDC presented it contained conserved secondary structure and Phe135, Phe155, Tyr166, Phe173, Tyr181, Phe183, and Phe256 amino acid residues. Expression pattern analysis showed that PmC1qDC expressed in all the detected tissues and exhibited a significantly higher expression level in nacre formation-associated tissues. After the shell notching, the expression level of PmC1qDC showed significantly up-regulation after 12 h in the central zone of mantle (MC). PmC1qDC expression significantly decreased in the MC after RNA interference (RNAi). Furthermore, disordered crystals with evident rough surface and irregular crystal tablets were observed in the nacre after RNAi. Results suggested that PmC1qDC affects the shell nacre formation, which is significant to improve the pearl production of pearl oyster.
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Affiliation(s)
- Bingyi Xie
- Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Qi He
- Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Ruijuan Hao
- Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Zhe Zheng
- Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China.
| | - Xiaodong Du
- Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China; Guangdong Science and Innovation Center for Pearl Culture, Zhanjiang, 524088, China.
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Zhang L, Sun W, Chen H, Tian F, Cai W. Transcriptome analysis of acute exposure of the Manila clam, Ruditapes philippinarum to perfluorooctane sulfonate (PFOS). Comp Biochem Physiol C Toxicol Pharmacol 2020; 231:108736. [PMID: 32142923 DOI: 10.1016/j.cbpc.2020.108736] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/27/2020] [Accepted: 02/27/2020] [Indexed: 12/23/2022]
Abstract
Perfluorooctane sulfonate (PFOS) is an increasingly important environmental pollutant, which has been detected almost everywhere in the environment. Despite the widespread presence of PFOS, much less notice is taken of its toxicology effects on marine bivalves. Thus, the transcriptome response to PFOS treatment (nominal concentration of 20 mg/L) in hepatopancreas of a sentinel organism, Ruditapes philippinarum was examined. Compared with the control group, 32,149 unigenes were up-regulated and 26,958 unigenes down-regulated. Notably, significant gene expression changes were found in carbohydrate metabolism, energy metabolism, amino acid metabolism, lipid metabolism and protein biosynthesis, indicating the metabolic disruptions caused by PFOS in R. philippinarum. Additionally, numerous other differentially expressed genes were involved in immune system, antioxidant defense system and detoxification metabolism. In summary, transcriptome profiling of R. philippinarum after exposure to PFOS provided molecular support for our current understanding of the detrimental toxicity of PFOS on marine bivalves.
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Affiliation(s)
- Linbao Zhang
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture, Key Laboratory of Fishery Ecology and Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China.
| | - Wei Sun
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture, Key Laboratory of Fishery Ecology and Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Haigang Chen
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture, Key Laboratory of Fishery Ecology and Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Fei Tian
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture, Key Laboratory of Fishery Ecology and Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Wengui Cai
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture, Key Laboratory of Fishery Ecology and Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
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Zhang L, Sun W, Chen H, Zhang Z, Cai W. Transcriptomic Changes in Liver of Juvenile Cynoglossus semilaevis following Perfluorooctane Sulfonate Exposure. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2020; 39:556-564. [PMID: 31726483 DOI: 10.1002/etc.4633] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 10/15/2019] [Accepted: 11/11/2019] [Indexed: 06/10/2023]
Abstract
Perfluorooctane sulfonate (PFOS) is an increasingly important environmental pollutant that is pervasive in the environment. A number of studies have focused on the toxicological effects of PFOS on model fish species (zebrafish and medaka), but little is known about the impact of PFOS on commercially important marine fish. Thus, the present study examined transcriptome responses to PFOS exposure in the liver of juvenile Cynoglossus semilaevis, an important farmed flatfish in China. Then, in response to PFOS challenges, 1695 and 5244 genes were identified as significantly increased and depressed, respectively. Significant expression changes were observed in immune-related genes (cytokine-cytokine receptor interaction, T-helper [Th]17 cell differentiation, and the chemokine nuclear factor-kappa B and T-cell receptor signaling pathways), indicating that immunotoxicity is a key aspect of the effects of PFOS on C. semilaevis. Exposure to PFOS also altered the gene expression levels of hormones (inhibin, insulin, somatostatin, and glucagon), which could lead to severe metabolic and endocrine dysfunction. As expected from previous studies, several phase I and phase II detoxification enzymes were significantly up-regulated, which could facilitate the biotransformation and detoxification of PFOS in C. semilaevis. The present study provides new insights into the molecular toxicology of PFOS in a commercially important fish species. Environ Toxicol Chem 2020;39:556-564. © 2019 SETAC.
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Affiliation(s)
- Linbao Zhang
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture, Guangzhou, People's Republic of China
- Key Laboratory of Fishery Ecology and Environment, Guangdong Province, Guangzhou, People's Republic of China
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, People's Republic of China
| | - Wei Sun
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture, Guangzhou, People's Republic of China
- Key Laboratory of Fishery Ecology and Environment, Guangdong Province, Guangzhou, People's Republic of China
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, People's Republic of China
| | - Haigang Chen
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture, Guangzhou, People's Republic of China
- Key Laboratory of Fishery Ecology and Environment, Guangdong Province, Guangzhou, People's Republic of China
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, People's Republic of China
| | - Zhe Zhang
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture, Guangzhou, People's Republic of China
- Key Laboratory of Fishery Ecology and Environment, Guangdong Province, Guangzhou, People's Republic of China
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, People's Republic of China
| | - Wengui Cai
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture, Guangzhou, People's Republic of China
- Key Laboratory of Fishery Ecology and Environment, Guangdong Province, Guangzhou, People's Republic of China
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, People's Republic of China
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9
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Zhang L, Hu Y, Sun W, Chen S, Jia X, Cai W. Transcriptomic responses of Nile tilapia (Oreochromis niloticus) liver to environmental concentration of di(2-ethylhexyl)phthalate. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 165:70-77. [PMID: 30193166 DOI: 10.1016/j.ecoenv.2018.08.100] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 04/13/2018] [Accepted: 08/28/2018] [Indexed: 06/08/2023]
Abstract
Di-(2-ethylhexyl) phthalate (DEHP) is currently the most frequently detected phthalic acid esters (PAEs) compounds and can induce diverse toxicities on aquatic organisms. To understand the molecular responses of fish to DEHP, we performed transcriptomic profiles in liver of tilapia (Oreochromis niloticus) which were exposed to environmental concentration of DEHP. A total of 30.10 Mb and 30.16 Mb clean reads were retrieved from the control and DEHP treated libraries, respectively. De-novo assembly of all the clean reads obtained 58,585 unigenes. After comparing the two libraries, 2814 and 1790 genes were identified as significantly increased and depressed, respectively. Gene ontology (GO) classification system and Kyoto Encyclopedia of Genes and Genomes (KEGG) database analysis demonstrated that DEHP significantly disturbed the expression level of genes associated with immunity, endocrine and reproductive system, lipid metabolism and so on. Quantitative real-time PCR was performed to validate the results of RNA-sequencing (RNA-seq) analysis. The resulting data provide new insights for exploring the molecular basis of tilapia response to DEHP exposure.
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Affiliation(s)
- Linbao Zhang
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture, Guangzhou 510300, PR China; Guangdong Provincial Key Lab. of Fishery Ecology and Environment, Guangzhou 510300, PR China; South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China.
| | - Ying Hu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, PR China
| | - Wei Sun
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture, Guangzhou 510300, PR China; Guangdong Provincial Key Lab. of Fishery Ecology and Environment, Guangzhou 510300, PR China; South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Si Chen
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture, Guangzhou 510300, PR China; Guangdong Provincial Key Lab. of Fishery Ecology and Environment, Guangzhou 510300, PR China; South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Xiaoping Jia
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture, Guangzhou 510300, PR China; Guangdong Provincial Key Lab. of Fishery Ecology and Environment, Guangzhou 510300, PR China; South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China
| | - Wengui Cai
- Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture, Guangzhou 510300, PR China; Guangdong Provincial Key Lab. of Fishery Ecology and Environment, Guangzhou 510300, PR China; South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, PR China.
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