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Becerril Mercado JE, García de Llasera MP, Méndez García M. Size Exclusion Chromatography Protein Profile of Selenastrum capricornutum Culture Extracts Degrading Benzo( a)Pyrene. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2159987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- José Eduardo Becerril Mercado
- Departamento de Química Analítica, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, México, México
| | - Martha Patricia García de Llasera
- Departamento de Química Analítica, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, México, México
| | - Manuel Méndez García
- Departamento de Química Analítica, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, México, México
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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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Li D, Liu T, Pan L, Hu F, Jin Q. Bioaccumulation and oxidative damage of polycyclic aromatic hydrocarbon mixtures in Manila clam Ruditapes philippinarum. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 197:110558. [PMID: 32304925 DOI: 10.1016/j.ecoenv.2020.110558] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 03/27/2020] [Accepted: 03/28/2020] [Indexed: 06/11/2023]
Abstract
The aim of this study was to investigate the bioaccumulation and oxidative damage of Manila clam, Ruditapes philippinarum, exposed to four selected mixtures of polycyclic aromatic hydrocarbons (PAHs; benzo (a) pyrene (BaP), benzo (a) anthracene (BaA), benzo (b) fluoranthene (BbF), and chrysene (Chr) in equal proportion. For this purpose, clams were exposed to PAHs (BaP:BbF:BaA:Chr = 1:1:1:1) at different concentrations (0.05, 0.5, and 5 μg/L) for 21 days, followed by a 15-day depuration period. All four PAHs accumulated in the gill, digestive gland, adductor muscle, and soft tissue of Manila clams, and all PAH treatment groups showed clear time and dose dependence. The decreasing order of bioaccumulation for the four PAHs in the exposure experiment was Chr > BaA > BaP > BbF. Moreover, the order of PAH bioaccumulation for the four tissues during the whole experiment was digestive gland > gill > soft tissues > adductor muscles. Although the initial concentrations of the four PAHs were the same, the final accumulated contents were different. Therefore, we also determined the detoxification processes of the four PAH mixtures in gills and digestive glands. The bioaccumulation of Chr was higher than the other three PAHs, probably because clams have a lower metabolic capacity for Chr than for BaP, BbF, and BaA. Exposure to PAH mixtures can result in oxidative damage, as indicated by the fact that DNA strand breaks, lipid peroxidation (LPO), and protein carbonyl (PC) were induced significantly (P < 0.05), except in the low-dose groups of PAHs, and different trends were detected with time of exposure. According to the correlation analysis, aryl hydrocarbon hydroxylase, glutathione s-transferase, superoxide dismutase, DNA strand break, PC, and LPO in both the gill and digestive gland are potential early indicators of PAH mixtures. We investigated the accumulation rules of R. philippinarum exposed to the selected PAHs and screened the potential biomarkers. The results of our study provide important scientific information for the purpose of monitoring marine pollution.
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Affiliation(s)
- Dongyu Li
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China
| | - Tong Liu
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China
| | - Luqing Pan
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China.
| | - Fengxiao Hu
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China
| | - Qian Jin
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China
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Feng Y, Zhou A, Zhang Y, Liu S, Pan Z, Zou J, Xie S. Transcriptomic changes in western mosquitofish (Gambusia affinis) liver following benzo[a]pyrene exposure. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:21924-21938. [PMID: 32285385 DOI: 10.1007/s11356-020-08571-0] [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: 11/20/2019] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
Widely distributed western mosquitofish (Gambusia affinis) has been used as a new model species for hazard assessment of environmental stressors such as polycyclic aromatic hydrocarbons (PAHs). However, most of the PAH studies using G. affinis rely on targeted biomarker-based analysis, and thus may not adequately address the complexity of the toxic mechanisms of the stressors. In the present study, the whole transcriptional sequencing of G. affinis liver after exposure to a PAH model, benzo[a]pyrene (BaP) (100 μg/L), for 20 days was performed by using the HiSeq XTen sequencers. In total, 58,156,233 and 51,825,467 clean nucleotide reads were obtained in the control and BaP-exposed libraries, respectively, with average N50 lengths of 1419 bp. In addition, after G. affinis was exposed for 20 days, 169 genes were upregulated, and 176 genes were downregulated in liver. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were applied to all the genes to determine the genes' biological functions and processes. The results clearly showed that the differentially expressed genes were mainly related to immune pathways and metabolic correlation pathways. Interestingly, almost all the pathways related with the immunity were upregulated, while the metabolism pathways were downregulated. Lastly, quantitative real-time PCR (qRT-PCR) was performed to measure expressional levels of twelve genes confirmed through the DGE analysis. These results demonstrate that BaP damages immunity and enhances the consumption of all available energy storage to activate mechanisms of the detoxification in G. affinis. Up until now, the present study is the first time that a whole transcriptome sequencing analysis in the liver of G. affinis exposed to BaP has been reported.
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Affiliation(s)
- Yongyong Feng
- College of Marine Science, South China Agricultural University, Guangzhou, Guangdong, 510642, People's Republic of China
| | - Aiguo Zhou
- College of Marine Science, South China Agricultural University, Guangzhou, Guangdong, 510642, People's Republic of China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Yue Zhang
- Departments of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, 90033, USA
| | - Shulin Liu
- College of Marine Science, South China Agricultural University, Guangzhou, Guangdong, 510642, People's Republic of China
| | - Zhengkun Pan
- College of Marine Science, South China Agricultural University, Guangzhou, Guangdong, 510642, People's Republic of China
| | - Jixing Zou
- College of Marine Science, South China Agricultural University, Guangzhou, Guangdong, 510642, People's Republic of China.
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China.
| | - Shaolin Xie
- College of Marine Science, South China Agricultural University, Guangzhou, Guangdong, 510642, People's Republic of China.
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China.
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, South China Agricultural University, Guangzhou, 510642, People's Republic of China.
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Zhu Y, Chen K, Ding Y, Situ D, Li Y, Long Y, Wang L, Ye J. Metabolic and proteomic mechanism of benzo[a]pyrene degradation by Brevibacillus brevis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 172:1-10. [PMID: 30665150 DOI: 10.1016/j.ecoenv.2019.01.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 01/07/2019] [Accepted: 01/10/2019] [Indexed: 06/09/2023]
Abstract
Benzo[a]pyrene (BaP) is a model compound of polycyclic aromatic hydrocarbons. The relationship between its toxicity and some target biomolecules has been investigated. To reveal the interactions of BaP biodegradation and metabolic network, BaP intermediates, proteome, carbon metabolism and ion transport were analyzed. The results show that 76% BaP was degraded by Brevibacillus brevis within 7 d through the cleavage of aromatic rings with the production of 1-naphthol and 2-naphthol. During this process, the expression of xylose isomerase was induced for xylose metabolism, whereas, α-cyclodextrin could no longer be metabolized. Lactic acid, acetic acid and oxalic acid at 0.1-1.2 mg dm-3 were released stemming from their enhanced biosynthesis in the pathways of pyruvate metabolism and citrate cycle, while 5-7 mg dm-3 of PO43- were transported for energy metabolism. The relative abundance of 43 proteins was significantly increased for pyruvate metabolism, citrate cycle, amino acid metabolism, purine metabolism, ribosome metabolism and protein synthesis.
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Affiliation(s)
- Yueping Zhu
- Technology Research Center for Petrochemical Resources Clean Utilization of Guangdong Province, Faculty of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, Guangdong, China
| | - Kaiyun Chen
- Child Developmental-Behavioral Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Yingqi Ding
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, Guangdong, China
| | - Donglin Situ
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, Guangdong, China
| | - Yi Li
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, Guangdong, China
| | - Yan Long
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, Guangdong, China
| | - Lili Wang
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, Guangdong, China
| | - Jinshao Ye
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, Guangdong, China.
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