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Xiao S, Wu Y, Gao S, Zhou M, Liu Z, Xiong Q, Jiang L, Yuan G, Li L, Yang L. Deciphering the Hazardous Effects of AFB1 and T-2 Toxins: Unveiling Toxicity and Oxidative Stress Mechanisms in PK15 Cells and Mouse Kidneys. Toxins (Basel) 2023; 15:503. [PMID: 37624260 PMCID: PMC10467080 DOI: 10.3390/toxins15080503] [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: 07/14/2023] [Revised: 08/04/2023] [Accepted: 08/10/2023] [Indexed: 08/26/2023] Open
Abstract
In China, animal feeds are frequently contaminated with a range of mycotoxins, with Aflatoxin B1 (AFB1) and T-2 toxin (T-2) being two highly toxic mycotoxins. This study investigates the combined nephrotoxicity of AFB1 and T-2 on PK15 cells and murine renal tissues and their related oxidative stress mechanisms. PK15 cells were treated with the respective toxin concentrations for 24 h, and oxidative stress-related indicators were assessed. The results showed that the combination of AFB1 and T-2 led to more severe cellular damage and oxidative stress compared to exposure to the individual toxins (p < 0.05). In the in vivo study, pathological examination revealed that the kidney tissue of mice exposed to the combined toxins showed signs of glomerular atrophy. The contents of oxidative stress-related indicators were significantly increased in the kidney tissue (p < 0.05). These findings suggest that the combined toxins cause significant oxidative damage to mouse kidneys. The study highlights the importance of considering the combined effects of mycotoxins in animal feed, particularly AFB1 and T-2, which can lead to severe nephrotoxicity and oxidative stress in PK15 cells and mouse kidneys. The findings have important implications for animal feed safety and regulatory policy.
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Affiliation(s)
- Shuai Xiao
- College of Veterinary Medicine, Hunan Agricultural University, No. 1 Nongda Road, Furong District, Changsha 410128, China; (S.X.); (Y.W.); (S.G.); (M.Z.); (Q.X.); (L.J.); (G.Y.); (L.L.)
| | - Yingxin Wu
- College of Veterinary Medicine, Hunan Agricultural University, No. 1 Nongda Road, Furong District, Changsha 410128, China; (S.X.); (Y.W.); (S.G.); (M.Z.); (Q.X.); (L.J.); (G.Y.); (L.L.)
| | - Suisui Gao
- College of Veterinary Medicine, Hunan Agricultural University, No. 1 Nongda Road, Furong District, Changsha 410128, China; (S.X.); (Y.W.); (S.G.); (M.Z.); (Q.X.); (L.J.); (G.Y.); (L.L.)
| | - Mingxia Zhou
- College of Veterinary Medicine, Hunan Agricultural University, No. 1 Nongda Road, Furong District, Changsha 410128, China; (S.X.); (Y.W.); (S.G.); (M.Z.); (Q.X.); (L.J.); (G.Y.); (L.L.)
| | - Zhiwei Liu
- Wuhan Animal Disease Control Center, No. 170, Erqi Road, Jiang’an District, Wuhan 430014, China;
| | - Qianbo Xiong
- College of Veterinary Medicine, Hunan Agricultural University, No. 1 Nongda Road, Furong District, Changsha 410128, China; (S.X.); (Y.W.); (S.G.); (M.Z.); (Q.X.); (L.J.); (G.Y.); (L.L.)
| | - Lihuang Jiang
- College of Veterinary Medicine, Hunan Agricultural University, No. 1 Nongda Road, Furong District, Changsha 410128, China; (S.X.); (Y.W.); (S.G.); (M.Z.); (Q.X.); (L.J.); (G.Y.); (L.L.)
| | - Guoxiang Yuan
- College of Veterinary Medicine, Hunan Agricultural University, No. 1 Nongda Road, Furong District, Changsha 410128, China; (S.X.); (Y.W.); (S.G.); (M.Z.); (Q.X.); (L.J.); (G.Y.); (L.L.)
| | - Linfeng Li
- College of Veterinary Medicine, Hunan Agricultural University, No. 1 Nongda Road, Furong District, Changsha 410128, China; (S.X.); (Y.W.); (S.G.); (M.Z.); (Q.X.); (L.J.); (G.Y.); (L.L.)
| | - Lingchen Yang
- College of Veterinary Medicine, Hunan Agricultural University, No. 1 Nongda Road, Furong District, Changsha 410128, China; (S.X.); (Y.W.); (S.G.); (M.Z.); (Q.X.); (L.J.); (G.Y.); (L.L.)
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Feng J, Xue Y, Wang X, Song Q, Wang B, Ren X, Zhang L, Liu Z. Sensitive, simultaneous and quantitative detection of deoxynivalenol and fumonisin B 1 in the water environment using lateral flow immunoassay integrated with smartphone. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 834:155354. [PMID: 35460773 DOI: 10.1016/j.scitotenv.2022.155354] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/10/2022] [Accepted: 04/13/2022] [Indexed: 06/14/2023]
Abstract
Deoxynivalenol (DON) and fumonisin B1 (FB1), as a group of highly toxic secondary metabolites, have become a potential source of water environmental pollutants. To minimize two mycotoxins exposure to consumers, a dual lateral flow immunoassay (LFIA) integrated with the smartphone was reported for simultaneous and quantitative detection of DON and FB1 in the water environment. The significantly improved sensitivity was contributed to a smartphone-based device with the ability to image and analyze results. Under optimized conditions, the detection limits of DON and FB1 were calculated to be 3.46 and 2.65 ng/mL, which were approximately 25 and 10 folds lower than those of the visual detection of the LFIA. This method showed good specificity and a good dynamic linear detection for DON and FB1. The recoveries of DON and FB1 were evaluated by the spiked lake water, river water, and pond water, ranging from 92.47% to 106.2% with the relative standard deviation under 9.13%. Moreover, the results of the developed LFIA showed a high correlation with enzyme-linked immunosorbent assay (ELISA) results, with a correlation coefficient of 0.999 for DON and 0.996 for FB1, respectively. To sum up, the developed LFIA provides a promising platform for sensitive, simultaneous, quantitative, and on-site detection of DON and FB1 in the water environment.
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Affiliation(s)
- Jiankun Feng
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yuan Xue
- Guizhou Anshun Tobacco Co., Ltd., Anshun 561000, China
| | - Xinwei Wang
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Qingsong Song
- Shandong Linyi Tobacco Co., Ltd., Linyi 276000, China
| | - Baojian Wang
- Shandong Linyi Tobacco Co., Ltd., Linyi 276000, China
| | - Xuexiang Ren
- Institute of Protection and Agro-Products Safety, Anhui Academy of Agricultural Science, Hefei 230031, China.
| | - Leigang Zhang
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Zhenjiang Liu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China.
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Zhang YZ, Zhao QH, Duan HW, Zou YJ, Sun SC, Hu LL. Aflatoxin B1 exposure disrupts organelle distribution in mouse oocytes. PeerJ 2022; 10:e13497. [PMID: 35646486 PMCID: PMC9135037 DOI: 10.7717/peerj.13497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 05/05/2022] [Indexed: 01/17/2023] Open
Abstract
Aflatoxin B1 (AFB1) is a secondary metabolite produced by the fungus Aspergillus, which is ubiquitous in moldy grain products. Aflatoxin B1 has been reported to possess hepatotoxicity, renal toxicity, and reproductive toxicity. Previous studies have shown that AFB1 is toxic to mammalian oocytes. However, the potential toxicity of AFB1 on the organelles of mouse oocytes is unknown. In this study, we found that exposure to AFB1 significantly reduced mouse oocyte development capacity. Further analysis showed that the endoplasmic reticulum (ER) failed to accumulate around the spindle, and scattered in the cytoplasm under AFB1 exposure. Similar to the ER, the Golgi apparatus showed a uniform localization pattern following AFB1 treatment. In addition, we found that AFB1 exposure caused the condensation of lysosomes in the cytoplasm, presenting as a clustered or spindle peripheral-localization pattern, which indicated that protein modification, transport, and degradation were affected. Mitochondrial distribution was also altered by AFB1 treatment. In summary, our study showed that AFB1 exposure had toxic effects on the distribution of mouse oocyte organelles, which further led to a decline in oocyte quality.
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Affiliation(s)
- Yan-Zhe Zhang
- College of Animal Science & Technology, Nanjing Agricultural University, Nanjing, China
| | - Qian-Han Zhao
- College of Animal Science & Technology, Nanjing Agricultural University, Nanjing, China
| | - Hong-Wei Duan
- College of Animal Science & Technology, Nanjing Agricultural University, Nanjing, China
| | - Yuan-Jing Zou
- College of Animal Science & Technology, Nanjing Agricultural University, Nanjing, China
| | - Shao-Chen Sun
- College of Animal Science & Technology, Nanjing Agricultural University, Nanjing, China
| | - Lin-Lin Hu
- The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
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Cytotoxicity of Mycotoxins and Their Combinations on Different Cell Lines: A Review. Toxins (Basel) 2022; 14:toxins14040244. [PMID: 35448853 PMCID: PMC9031280 DOI: 10.3390/toxins14040244] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/22/2022] [Accepted: 03/28/2022] [Indexed: 12/11/2022] Open
Abstract
Mycotoxins are secondary metabolites of molds and mainly produced by species of the genera Aspergillus, Penicillium and Fusarium. They can be synthesized on the field, during harvest as well as during storage. They are fairly stable compounds and difficult to remove. Among several hundreds of mycotoxins, according to the WHO, ochratoxin A, aflatoxins, zearalenone, deoxynivalenol, patulin, fumonisins as well as T-2 and HT-2 toxins deserve special attention. Cytotoxicity is one of the most important adverse properties of mycotoxins and is generally assessed via the MTT assay, the neutral red assay, the LDH assay, the CCK-8 assay and the ATP test in different cell lines. The apoptotic cell ratio is mainly assessed via flow cytometry. Aside from the assessment of the toxicity of individual mycotoxins, it is important to determine the cytotoxicity of mycotoxin combinations. Such combinations often exhibit stronger cytotoxicity than individual mycotoxins. The cytotoxicity of different mycotoxins often depends on the cell line used in the experiment and is frequently time- and dose-dependent. A major drawback of assessing mycotoxin cytotoxicity in cell lines is the lack of interaction typical for complex organisms (for example, immune responses).
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Hooft JM, Bureau DP. Deoxynivalenol: Mechanisms of action and its effects on various terrestrial and aquatic species. Food Chem Toxicol 2021; 157:112616. [PMID: 34662691 DOI: 10.1016/j.fct.2021.112616] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 10/02/2021] [Accepted: 10/12/2021] [Indexed: 11/26/2022]
Abstract
Deoxynivalenol, a type B trichothecene mycotoxin produced by Fusarium species of fungi, is a ubiquitious contaminant of cereal grains worldwide. Chronic, low dose consumption of feeds contaminated with DON is associated with a wide range of symptoms in terrestrial and aquatic species including decreased feed intake and feed refusal, reduced weight gain, and altered nutritional efficiency. Acute, high dose exposure to DON may be associated with more severe symptoms such as vomiting, diarrhea, intestinal inflammation and gastrointestinal hemorrhage. The toxicity of DON is partly related to its ability to disrupt eukaryotic protein synthesis via binding to the peptidyl transferase site of the ribosome. Moreover, DON exerts its effects at the cellular level by activating mitogen activated protein kinases (MAPK) through a process known as the ribotoxic stress response (RSR). The outcome of DON-associated MAPK activation is dose and duration dependent; acute low dose exposure results in immunostimulation characterized by the upregulation of cytokines, chemokines and other proinflammatory-related proteins, whereas longer term exposure to higher doses generally results in apoptosis, cell cycle arrest, and immunosuppression. The order of decreasing sensitivity to DON is considered to be: swine > rats > mice > poultry ≈ ruminants. However, studies conducted within the past 10 years have demonstrated that some species of fish, such as rainbow trout, are highly sensitive to DON. The aims of this review are to explore the effects of DON on terrestrial and aquatic species as well as its mechanisms of action, metabolism, and interaction with other Fusarium mycotoxins. Notably, a considerable emphasis is placed on reviewing the effects of DON on different species of fish.
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Affiliation(s)
- Jamie M Hooft
- Wittaya Aqua International, 1 University Ave, Floor 5, Toronto, ON, M5J 2P1, Canada.
| | - Dominique P Bureau
- Wittaya Aqua International, 1 University Ave, Floor 5, Toronto, ON, M5J 2P1, Canada; Department of Animal Biosciences, University of Guelph, 50 Stone Road E, Guelph, ON, N1G 2W1, Canada
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Bernal-Algaba E, Pulgarín-Alfaro M, Fernández-Cruz ML. Cytotoxicity of Mycotoxins Frequently Present in Aquafeeds to the Fish Cell Line RTGill-W1. Toxins (Basel) 2021; 13:581. [PMID: 34437452 PMCID: PMC8402477 DOI: 10.3390/toxins13080581] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/10/2021] [Accepted: 08/17/2021] [Indexed: 12/18/2022] Open
Abstract
In the last decades, the aquaculture industry has introduced plant-based ingredients as a source of protein in aquafeeds. This has led to mycotoxin contaminations, representing an ecological, health and economic problem. The aim of this study was to determine in the RTgill-W1 fish cell line the toxicity of fifteen mycotoxins of common occurrence in aquafeeds. To identify the most sensitive endpoint of toxicity, the triple assay was used. It consisted of three assays: alamarBlue, Neutral Red Uptake and CFDA-AM, which revealed the mitochondrial activity, the lysosomal integrity and the plasma membrane integrity, respectively. Most of the assayed mycotoxins were toxic predominantly at lysosomal level (enniatins, beauvericin, zearalenone, ochratoxin A, deoxynivalenol (DON) and its acetylated metabolites 15-O-acetyl-DON and 3-acetyl-DON). Aflatoxins B1 and B2 exerted the greatest effects at mitochondrial level, while fumonisins B1 and B2 and nivalenol were not toxic up to 100 µg/mL. In general, low toxicity was observed at plasma membrane level. The vast majority of the mycotoxins assayed exerted a pronounced acute effect in the fish RTgill-W1 cell line, emphasizing the need for further studies to ascertain the impact of mycotoxin contamination of fish feeds in the aquaculture industry and to establish safe limits in aquafeeds.
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Affiliation(s)
| | | | - María Luisa Fernández-Cruz
- Department of Environment and Agronomy, National Institute of Agriculture and Food Research and Technology (INIA), Spanish National Research Council (CSIC), 28040 Madrid, Spain; (E.B.-A.); (M.P.-A.)
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Liu Q, Qiu S, Xu Z, Wang X, Shen H. Cytotoxicity study of deoxynivalenol on human embryo liver and hepatoma cell. WORLD MYCOTOXIN J 2020. [DOI: 10.3920/wmj2019.2533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
To investigate the cytotoxicity of deoxynivalenol (DON) on human embryo liver CCC-HEL-1 and hepatoma cell line HepG2 cell models, both cell experience and metabolomic approach were studied. For the cell evaluation, cells viabilities of CCC-HEL-1 and HepG2 were decreased in both a time- and dose-dependent manner at concentration range from 0.08~10 μmol/l, after which the concentration of 1 μmol/l DON was selected for the next experiments. A higher production of reactive oxygen species (ROS) in DON treated CCC-HEL-1 cells was found after 2 h treatment compared with the HepG2 group, while ROS generation was significantly dropped after 48 h in both models. DON-treated CCC-HEL-1 and HepG2 cells displayed significantly decreased percentages of ΔΨm loss. For the metabolomic study based on liquid chromatography quadrupole time-of-flight mass spectrometry, it was notable that certain amino acids identified in the two DON-treated groups were upregulated. The pathway analysis also revealed that amino acid metabolism played a crucial role underlying DON exposure in the two studied models. Our results provided metabolic evidence that further confirmed the toxicological potential of DON to disturb amino acid and lipid metabolism in human embryo liver cells.
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Affiliation(s)
- Q. Liu
- Institute of Quality Standard & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China P.R
- College of Animal Science and Technology, Beijing University of Agriculture, Beijing 102206, China P.R
| | - S. Qiu
- Institute of Quality Standard & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China P.R
- College of Animal Science and Technology, Beijing University of Agriculture, Beijing 102206, China P.R
| | - Z. Xu
- Institute of Quality Standard & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China P.R
| | - X. Wang
- Institute of Quality Standard & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China P.R
| | - H. Shen
- College of Animal Science and Technology, Beijing University of Agriculture, Beijing 102206, China P.R
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Mwihia EW, Lyche JL, Mbuthia PG, Ivanova L, Uhlig S, Gathumbi JK, Maina JG, Eshitera EE, Eriksen GS. Co-Occurrence and Levels of Mycotoxins in Fish Feeds in Kenya. Toxins (Basel) 2020; 12:toxins12100627. [PMID: 33008105 PMCID: PMC7600487 DOI: 10.3390/toxins12100627] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 09/08/2020] [Accepted: 09/11/2020] [Indexed: 12/22/2022] Open
Abstract
This study determined the presence, levels and co-occurrence of mycotoxins in fish feeds in Kenya. Seventy-eight fish feeds and ingredients were sampled from fish farms and fish feed manufacturing plants and analysed for 40 mycotoxins using high-performance liquid chromatography-high resolution mass spectrometry. Twenty-nine (73%) mycotoxins were identified with 76 (97%) samples testing positive for mycotoxins presence. Mycotoxins with the highest prevalences were enniatin B (91%), deoxynivalenol (76%) and fumonisin B1 (54%) while those with the highest maximum levels were sterigmatocystin (<30.5–3517.1 µg/kg); moniliformin (<218.9–2583.4 µg/kg) and ergotamine (<29.3–1895.6 µg/kg). Mycotoxin co-occurrence was observed in 68 (87%) samples. Correlations were observed between the fumonisins; enniatins B and zearalenone and its metabolites. Fish dietary exposure estimates ranged between <0.16 and 43.38 µg/kg body weight per day. This study shows evidence of mycotoxin presence and co-occurrence in fish feeds and feed ingredients in Kenya. Fish exposure to these levels of mycotoxins over a long period of time may lead to adverse health effects due to their possible additive, synergistic or antagonist toxic effects. Measures to reduce fish feed mycotoxin contamination should be taken to avoid mycotoxicosis in fish and subsequently in humans and animals through residues.
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Affiliation(s)
- Evalyn Wanjiru Mwihia
- Department of Veterinary Pathology, Microbiology and Parasitology, Faculty of Veterinary Medicine and Surgery, Egerton University, P.O. Box 536, Egerton 20115, Kenya
- Department of Food Safety and Infectious Biology, Faculty of Veterinary Medicine, Norwegian University of Life Sciences (NMBU), P.O. Box 8146, 0454 Oslo, Norway;
- Department of Pathology, Microbiology and Parasitology, Faculty of Veterinary Medicine, University of Nairobi, P.O. Box 29053, Kangemi 00625, Kenya; (P.G.M.); (J.K.G.)
- Correspondence: (E.W.M.); (G.S.E.); Tel.: +254-721-417716 (E.W.M.); +47-9380-8479 (G.S.E.)
| | - Jan Ludvig Lyche
- Department of Food Safety and Infectious Biology, Faculty of Veterinary Medicine, Norwegian University of Life Sciences (NMBU), P.O. Box 8146, 0454 Oslo, Norway;
| | - Paul Gichohi Mbuthia
- Department of Pathology, Microbiology and Parasitology, Faculty of Veterinary Medicine, University of Nairobi, P.O. Box 29053, Kangemi 00625, Kenya; (P.G.M.); (J.K.G.)
| | - Lada Ivanova
- Toxinology Research Group, Norwegian Veterinary Institute, Ullevålsveien 68, Pb 750 Sentrum, 0106 Oslo, Norway; (L.I.); (S.U.)
| | - Silvio Uhlig
- Toxinology Research Group, Norwegian Veterinary Institute, Ullevålsveien 68, Pb 750 Sentrum, 0106 Oslo, Norway; (L.I.); (S.U.)
| | - James K. Gathumbi
- Department of Pathology, Microbiology and Parasitology, Faculty of Veterinary Medicine, University of Nairobi, P.O. Box 29053, Kangemi 00625, Kenya; (P.G.M.); (J.K.G.)
| | - Joyce G. Maina
- Department of Animal Production, Faculty of Veterinary Medicine, University of Nairobi, P.O. Box 29053, Kangemi 00625, Kenya;
| | - Eric Emali Eshitera
- Department of Animal Health and Production, School of Natural Resource and Animal Sciences, Maasai Mara University, P.O. Box 861, Narok 20500, Kenya;
| | - Gunnar Sundstøl Eriksen
- Toxinology Research Group, Norwegian Veterinary Institute, Ullevålsveien 68, Pb 750 Sentrum, 0106 Oslo, Norway; (L.I.); (S.U.)
- Correspondence: (E.W.M.); (G.S.E.); Tel.: +254-721-417716 (E.W.M.); +47-9380-8479 (G.S.E.)
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Kövesi B, Pelyhe C, Zándoki E, Mézes M, Balogh K. Combined effects of aflatoxin B1 and deoxynivalenol on the expression of glutathione redox system regulatory genes in common carp. J Anim Physiol Anim Nutr (Berl) 2020; 104:1531-1539. [PMID: 32166807 DOI: 10.1111/jpn.13343] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 01/23/2020] [Accepted: 02/17/2020] [Indexed: 12/13/2022]
Abstract
The purpose of the present study was to evaluate the short-term effects of aflatoxin B1 (AFB1 ) and deoxynivalenol (DON) exposure on the expression of the genes encoding the glutathione redox system glutathione peroxidase 4a (gpx4a), glutathione peroxidase 4b (gpx4b), glutathione synthetase (gss) and glutathione reductase (gsr) and the oxidative stress response-related transcription factors Kelch-like ECH-associated protein 1 (keap1) and nuclear factor-erythroid 2 p45-related factor 2 (nrf2) in liver, kidney and spleen of common carp. During the 24-hr long experiment, three different doses (5 µg AFB1 and 110 µg DON; 7.5 µg AFB1 and 165 µg DON or 10 µg AFB1 and 220 µg DON/kg bw) were used. The results indicated that the co-exposure of AFB1 and DON initiated free radical formation in liver, kidney and spleen, which was suggested by the increase in Nrf2 dependent genes, namely gpx4a, gpx4b, gss and gsr. Expression of keap1 gene showed upregulation after 8 hr of mycotoxin exposure, and also upregulation of nrf2 gene was found in kidney after 8 hr of exposure, while in the liver, only slight differences were observed. The changes in the expression of the analysed genes suggest that level of reactive oxygen species reached a critical level where other signalling pathway was activated as described by the hierarchical model of oxidative stress.
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Affiliation(s)
- Benjamin Kövesi
- Department of Nutrition, Szent István University, Gödöllő, Hungary
| | - Csilla Pelyhe
- Mycotoxins in the Food Chain Research Group, Hungarian Academy of Sciences, Kaposvár University, Szent István University, Kaposvár, Hungary
| | - Erika Zándoki
- Mycotoxins in the Food Chain Research Group, Hungarian Academy of Sciences, Kaposvár University, Szent István University, Kaposvár, Hungary
| | - Miklós Mézes
- Department of Nutrition, Szent István University, Gödöllő, Hungary.,Mycotoxins in the Food Chain Research Group, Hungarian Academy of Sciences, Kaposvár University, Szent István University, Kaposvár, Hungary
| | - Krisztián Balogh
- Department of Nutrition, Szent István University, Gödöllő, Hungary.,Mycotoxins in the Food Chain Research Group, Hungarian Academy of Sciences, Kaposvár University, Szent István University, Kaposvár, Hungary
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Marijani E, Kigadye E, Okoth S. Occurrence of Fungi and Mycotoxins in Fish Feeds and Their Impact on Fish Health. Int J Microbiol 2019; 2019:6743065. [PMID: 31827520 PMCID: PMC6881585 DOI: 10.1155/2019/6743065] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 10/01/2019] [Indexed: 02/04/2023] Open
Abstract
The rapid population growth in developing countries has led to strong pressure on capture fisheries. However, capture fisheries have reached their maximal limits of fish production and are supplemented by farmed fish. The growth in aquaculture has led to high demand for fish feeds, which play a very important role in fish nutrition and health. Use of animal protein in fish feeds is expensive; hence, a majority of farmers from developing countries use local feed ingredients from plant origin as a source of dietary protein. However, these ingredients of plant origin provide the best natural substrates for fungi, which can be easily accompanied by mycotoxin development under suitable conditions. The locally made feed comprises ingredients such as soybeans, cottonseed cake, and wheat and maize bran which are mixed together and ground after which the compounded feed is pelleted and stored. Among the ingredients, maize and oilseeds are more susceptible for mycotoxigenic fungi compared to other ingredients. The outcomes of mycotoxin contamination in fish feeds are not different from other animal species intended for human consumption, and they are directly associated with production losses, particularly decreased weight gain and feed conversion, impaired immune system and reproductive performance, and increased fish mortality. Fish may also carry mycotoxin residues along the food chain, thus compromising human health. Hence, it is important to ensure the control of mycotoxin contamination in fish feeds, especially during the production and storage.
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Affiliation(s)
- Esther Marijani
- Open University of Tanzania, P.O. Box 23409, Dar es Salaam, Tanzania
| | - Emmanuel Kigadye
- Open University of Tanzania, P.O. Box 23409, Dar es Salaam, Tanzania
| | - Sheila Okoth
- University of Nairobi, School of Biological Science, P.O. Box 30197-00100, Nairobi, Kenya
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Sobral MMC, Faria MA, Cunha SC, Ferreira IMPLVO. Toxicological interactions between mycotoxins from ubiquitous fungi: Impact on hepatic and intestinal human epithelial cells. CHEMOSPHERE 2018; 202:538-548. [PMID: 29587235 DOI: 10.1016/j.chemosphere.2018.03.122] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/16/2018] [Accepted: 03/18/2018] [Indexed: 05/27/2023]
Abstract
Aflatoxin B1 (AFB1), deoxynivalenol (DON), fumonisin B1 (FB1) and ochratoxin A (OTA) are toxic fungal metabolites co-occurring naturally in the environment. This study aimed to evaluate the toxicological interactions of these mycotoxins concerning additive, antagonistic and synergistic toxicity towards human cells. The theoretical biology-based Combination index-isobologram method was used to evaluate the individual and binary effect of these toxins and determine the type of the interaction using as models Caco-2 (intestinal) and HepG2 (hepatic) cells. Cytotoxicity was assessed using the MTT test at the concentrations of 0.625-20 μM for all the compounds. DON exerted the highest toxicity toward both cells, OTA and AFB1 also showed a dose-effect response, whereas no toxicity was verified for FB1. Synergism or antagonism effects occurred when exposing AFB1-DON and AFB1-OTA on Caco-2 cells at higher or lower concentrations, respectively; while DON-OTA showed synergism throughout all inhibition levels. Concerning HepG2, AFB1-DON exerted a strong synergism, regardless of the level; whereas AFB1-OTA had slight synergism/nearly additive effect; and, OTA-DON had a moderate antagonism/nearly additive effect. Synergistic strengths as high as a dose reduction index of 10 for AFB1-DON were observed in hepatic cells. Taken together our findings indicate that the toxicological effects differ regarding the type of mycotoxins used for combinations and the stronger synergistic effect was observed for mixtures containing DON in both cells. Therefore, even though DON has not been classified as to its carcinogenicity to humans, this mycotoxin may present a serious threat to health, mainly when co-occurring in the environment.
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Affiliation(s)
- M Madalena C Sobral
- LAQV/REQUIMTE, Departamento de Ciências Químicas, Laboratório de Bromatologia e Hidrologia, Faculdade de Farmácia, Universidade Do Porto, Porto, Portugal
| | - Miguel A Faria
- LAQV/REQUIMTE, Departamento de Ciências Químicas, Laboratório de Bromatologia e Hidrologia, Faculdade de Farmácia, Universidade Do Porto, Porto, Portugal.
| | - Sara C Cunha
- LAQV/REQUIMTE, Departamento de Ciências Químicas, Laboratório de Bromatologia e Hidrologia, Faculdade de Farmácia, Universidade Do Porto, Porto, Portugal
| | - Isabel M P L V O Ferreira
- LAQV/REQUIMTE, Departamento de Ciências Químicas, Laboratório de Bromatologia e Hidrologia, Faculdade de Farmácia, Universidade Do Porto, Porto, Portugal
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Toxicological effects of regulated mycotoxins and persistent organochloride pesticides: In vitro cytotoxic assessment of single and defined mixtures on MA-10 murine Leydig cell line. Toxicol In Vitro 2018; 48:93-103. [DOI: 10.1016/j.tiv.2017.12.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 11/28/2017] [Accepted: 12/30/2017] [Indexed: 01/19/2023]
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Kövesi B, Pelyhe C, Zándoki E, Mézes M, Balogh K. Changes of lipid peroxidation and glutathione redox system, and expression of glutathione peroxidase regulatory genes as effect of short-term aflatoxin B1 exposure in common carp. Toxicon 2018; 144:103-108. [DOI: 10.1016/j.toxicon.2018.02.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 02/04/2018] [Accepted: 02/11/2018] [Indexed: 11/28/2022]
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Alassane-Kpembi I, Schatzmayr G, Taranu I, Marin D, Puel O, Oswald IP. Mycotoxins co-contamination: Methodological aspects and biological relevance of combined toxicity studies. Crit Rev Food Sci Nutr 2018; 57:3489-3507. [PMID: 26918653 DOI: 10.1080/10408398.2016.1140632] [Citation(s) in RCA: 165] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Mycotoxins are secondary fungal metabolites produced mainly by Aspergillus, Penicillium, and Fusarium. As evidenced by large-scale surveys, humans and animals are simultaneously exposed to several mycotoxins. Simultaneous exposure could result in synergistic, additive or antagonistic effects. However, most toxicity studies addressed the effects of mycotoxins separately. We present the experimental designs and we discuss the conclusions drawn from in vitro experiments exploring toxicological interactions of mycotoxins. We report more than 80 publications related to mycotoxin interactions. The studies explored combinations involving the regulated groups of mycotoxins, especially aflatoxins, ochratoxins, fumonisins, zearalenone and trichothecenes, but also the "emerging" mycotoxins beauvericin and enniatins. Over 50 publications are based on the arithmetic model of additivity. Few studies used the factorial designs or the theoretical biology-based models of additivity. The latter approaches are gaining increased attention. These analyses allow determination of the type of interaction and, optionally, its magnitude. The type of interaction reported for mycotoxin combinations depended on several factors, in particular cell models and the tested dose ranges. However, synergy among Fusarium toxins was highlighted in several studies. This review indicates that well-addressed in vitro studies remain valuable tools for the screening of interactive potential in mycotoxin mixtures.
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Affiliation(s)
- Imourana Alassane-Kpembi
- a Toxalim , Research Centre in Food Toxicology Université de Toulouse, INRA, ENVT, INP- PURPAN, UPS , Toulouse , France.,b Hôpital d'Instruction des Armées Camp Guézo , Cotonou , Bénin
| | | | - Ionelia Taranu
- d National Institute for Research and Development in Animal Biology and Nutrition (IBNA), Calea Bucuresti , Balotesti , Romania
| | - Daniela Marin
- d National Institute for Research and Development in Animal Biology and Nutrition (IBNA), Calea Bucuresti , Balotesti , Romania
| | - Olivier Puel
- a Toxalim , Research Centre in Food Toxicology Université de Toulouse, INRA, ENVT, INP- PURPAN, UPS , Toulouse , France
| | - Isabelle Paule Oswald
- a Toxalim , Research Centre in Food Toxicology Université de Toulouse, INRA, ENVT, INP- PURPAN, UPS , Toulouse , France
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Zhou H, George S, Li C, Gurusamy S, Sun X, Gong Z, Qian H. Combined toxicity of prevalent mycotoxins studied in fish cell line and zebrafish larvae revealed that type of interactions is dose-dependent. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2017; 193:60-71. [PMID: 29040830 DOI: 10.1016/j.aquatox.2017.09.030] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 09/29/2017] [Accepted: 09/30/2017] [Indexed: 05/19/2023]
Abstract
While, Aflatoxin B1 (AFB1), deoxynivalenol (DON) and zearalenone (ZEN) are the most prevalent mycotoxins co-existing in grain products and animal feeds, little is known about their combinatorial toxicities on aquatic life-forms. We studied the individual and combined effects of these mycotoxins in a fish cell line (BF-2) and zebrafish larvae (wild-type and transgenic). The types of interactions in mycotoxins combinations on cell viability were determined by using Chou-Talalay model. Induction of oxidative stress pathway in mycotoxins-exposed BF-2 cells was assessed using high content screening (HCS). Mycotoxin-exposed wild-type zebrafish larvae were examined for mortality and morphological abnormalities and transgenic zebrafish larvae (expressing DsRed in the liver) were imaged using HCS and examined for liver abnormalities. Results showed that the cytotoxicity of mycotoxins in a decreasing order was AFB1>DON>ZEN, however, the highest mortality rate and liver damage in zebrafish were observed for AFB1 followed by ZEN. AFB1+DON and AFB1+ZEN synergistically enhanced the toxic effects on BF-2 cells and zebrafish while DON+ZEN showed antagonism. Interestingly, in the tertiary combination, the synergism seen at lower individual concentrations of mycotoxins progressively turned to an overall antagonism at higher doses. The results provide a scientific basis for the necessity to consider co-exposure when formulating risk-management strategies.
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Affiliation(s)
- Hongyuan Zhou
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Saji George
- Department of Food Science and Agricultural Chemistry, Faculty of Agricultural and Environmental Sciences, McGill University, 21111 Lakeshore, Ste Anne de Bellevue, QuebecH9X3V9, Canada.
| | - Caixia Li
- Molecular Biology Laboratory, Department of Biological Sciences, National University of Singapore, Singapore 117543, Singapore
| | - Subramaniam Gurusamy
- Centre for Sustainable Nanotechnology, School of Chemical & Life Sciences, Nanyang Polytechnic, Singapore 569830, Singapore
| | - Xiulan Sun
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Zhiyuan Gong
- Molecular Biology Laboratory, Department of Biological Sciences, National University of Singapore, Singapore 117543, Singapore
| | - He Qian
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China.
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Li W, Sang Y, Zhang G. Combined cytotoxicity of aflatoxin B1 and deoxynivalenol to hepatoma HepG2/C3A cells. WORLD MYCOTOXIN J 2017. [DOI: 10.3920/wmj2017.2212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Co-occurrence of aflatoxin B1 (AFB1) and deoxynivalenol (DON) is one of the most common mycotoxin contaminations in cereal crops and food ingredients. However, the mechanism of their combined toxicity is poorly understood. In the current investigation, the hepatoma HepG2/C3A cell line was used to explore the combined cytotoxicity of AFB1 and DON. The values of IC50, based on a sulforhodamine B (SRB) assay, were 4.5 mM and 18.7 mM for DON and AFB1, respectively. The analysis of cytotoxicity endpoints using the combination index (CI) theory revealed that the changes of mitochondrial membrane permeability and ATP resulted from an additive cytotoxic effect (CI≈1) of AFB1 and DON. However, the endpoints of double strand DNA (ds-DNA), reactive oxygen species (ROS) and cell viability (SRB) were synergistically (CI<1) affected in a dose-dependent manner. RNA-seq analysis demonstrated a number of uniquely expressed genes in their combination (AFB1: 2.5 mM, DON: 0.56 mM), indicating a synergistic interaction between AFB1 and DON at a molecular level. Additional transcriptomics analysis showed that the endoplasmic reticulum stress-associated JNK/p38/MAPK pathway was induced by DON, whereas the p53 signalling pathway was activated by AFB1. The expression profiles of apoptosis-related genes caspase-3, Bax and Bcl-2 suggested a mitochondria-mediated apoptosis pathway that was shared between AFB1 and DON. Thus, different cytotoxicity pathways and their converging at the apoptotic process might be the mechanism of the additive/synergistic cytotoxicity of AFB1 and DON to HepG2/C3A cells.
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Affiliation(s)
- W. Li
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China P.R
| | - Y. Sang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China P.R
| | - G. Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China P.R
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Deng Y, Wang Y, Sun L, Lu P, Wang R, Ye L, Xu D, Ye R, Liu Y, Bi S, Gooneratne R. Biotransformation enzyme activities and phase I metabolites analysis in Litopenaeus vannamei following intramuscular administration of T-2 toxin. Drug Chem Toxicol 2017; 41:113-122. [DOI: 10.1080/01480545.2017.1320407] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yijia Deng
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Zhanjiang, China
| | - Yaling Wang
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Zhanjiang, China
| | - Lijun Sun
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Zhanjiang, China
| | - Pengli Lu
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Zhanjiang, China
| | - Rundong Wang
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Zhanjiang, China
| | - Lin Ye
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Zhanjiang, China
| | - Defeng Xu
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Zhanjiang, China
| | - Riying Ye
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Zhanjiang, China
| | - Ying Liu
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Zhanjiang, China
| | - Siyuan Bi
- Shenzhen Bioeasy Biotechnologies Co, Shenzhen, China
| | - Ravi Gooneratne
- Department of Wine, Food and Molecular Biosciences, Centre for Food Research and Innovation, Lincoln University, Lincoln, New Zealand
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Deng Y, Wang Y, Zhang X, Sun L, Wu C, Shi Q, Wang R, Sun X, Bi S, Gooneratne R. Effects of T-2 Toxin on Pacific White Shrimp Litopenaeus vannamei: Growth, and Antioxidant Defenses and Capacity and Histopathology in the Hepatopancreas. JOURNAL OF AQUATIC ANIMAL HEALTH 2017; 29:15-25. [PMID: 28166479 DOI: 10.1080/08997659.2016.1249577] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Modified-masked T-2 toxin (mT-2) formed during metabolism in edible aquatic animals may go undetected by traditional analytical methods, thereby underestimating T-2 toxicity. The effects of T-2 on growth and antioxidant capacity and histopathological changes in the hepatopancreas were studied in Pacific white shrimp Litopenaeus vannamei exposed for 20 d to 0, 0.5, 1.2, 2.4, 4.8, and 12.2 mg/kg of T-2 in their feed. The concentration of mT-2 in the hepatopancreas was detected by liquid chromatography-tandem mass spectrophotometry before and after trifluoroacetic acid (TFA) treatment that converted mT-2 to free T-2. A dose-dependent increase in mT-2 concentration was observed in the hepatopancreas. Dietary exposure to T-2 significantly decreased (P < 0.05) shrimp growth and survival rate compared with the controls. The malondialdehyde (MDA) concentration was significantly increased in shrimp exposed to feed with ≥2.4 mg/kg T-2 (P < 0.05). The antioxidant enzymes, superoxide dismutase (SOD) and glutathione peroxidase (GPx), total antioxidant capacity (T-AOC), and also glutathione (GSH) content increased in shrimp dosed with 2.4-4.8 mg/kg T-2 but declined at the highest dose (12.2 mg/kg), probably indicating an inability to cope with high concentrations of reactive oxygen species (ROS) as evident from a marked increase in MDA (P < 0.05) culminating in cellular toxicity. Histopathological changes in the hepatopancreas were dose dependent, with cell autophagy evident at the highest exposure dose. This is the first report in shrimp of a dose-dependent increase in ROS, SOD enzyme activity, and T-AOC at low T-2 exposures, and associated histopathological changes in the hepatopancreas, in response to dietary T-2. Received January 26, 2016; accepted October 9, 2016.
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Affiliation(s)
- Yijia Deng
- a College of Food Science and Technology, Guangdong Ocean University , Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution , Zhanjiang 524088 , China
| | - Yaling Wang
- a College of Food Science and Technology, Guangdong Ocean University , Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution , Zhanjiang 524088 , China
| | - Xiaodi Zhang
- a College of Food Science and Technology, Guangdong Ocean University , Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution , Zhanjiang 524088 , China
| | - Lijun Sun
- a College of Food Science and Technology, Guangdong Ocean University , Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution , Zhanjiang 524088 , China
| | - Chaojin Wu
- a College of Food Science and Technology, Guangdong Ocean University , Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution , Zhanjiang 524088 , China
| | - Qi Shi
- a College of Food Science and Technology, Guangdong Ocean University , Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution , Zhanjiang 524088 , China
| | - Rundong Wang
- a College of Food Science and Technology, Guangdong Ocean University , Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution , Zhanjiang 524088 , China
| | - Xiaodong Sun
- b College of Environment and Resources , Dalian Nationalities University , Dalian , 116600 , China
| | - Siyuan Bi
- c Shenzhen Bioeasy Biotechnologies Company Ltd ., Shenzhen , 518102 , China
| | - Ravi Gooneratne
- d Centre for Food Research and Innovation, Department of Wine, Food and Molecular Biosciences , Lincoln University , Lincoln 7647 , Canterbury , New Zealand
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Smith MC, Madec S, Coton E, Hymery N. Natural Co-Occurrence of Mycotoxins in Foods and Feeds and Their in vitro Combined Toxicological Effects. Toxins (Basel) 2016; 8:94. [PMID: 27023609 PMCID: PMC4848621 DOI: 10.3390/toxins8040094] [Citation(s) in RCA: 325] [Impact Index Per Article: 40.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 03/18/2016] [Accepted: 03/21/2016] [Indexed: 11/16/2022] Open
Abstract
Some foods and feeds are often contaminated by numerous mycotoxins, but most studies have focused on the occurrence and toxicology of a single mycotoxin. Regulations throughout the world do not consider the combined effects of mycotoxins. However, several surveys have reported the natural co-occurrence of mycotoxins from all over the world. Most of the published data has concerned the major mycotoxins aflatoxins (AFs), ochratoxin A (OTA), zearalenone (ZEA), fumonisins (FUM) and trichothecenes (TCTs), especially deoxynivalenol (DON). Concerning cereals and derived cereal product samples, among the 127 mycotoxin combinations described in the literature, AFs+FUM, DON+ZEA, AFs+OTA, and FUM+ZEA are the most observed. However, only a few studies specified the number of co-occurring mycotoxins with the percentage of the co-contaminated samples, as well as the main combinations found. Studies of mycotoxin combination toxicity showed antagonist, additive or synergic effects depending on the tested species, cell model or mixture, and were not necessarily time- or dose-dependent. This review summarizes the findings on mycotoxins and their co-occurrence in various foods and feeds from all over the world as well as in vitro experimental data on their combined toxicity.
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Affiliation(s)
- Marie-Caroline Smith
- Université de Brest, EA 3882 Laboratoire Universitaire de Biodiversité et d'Ecologie Microbienne, ESIAB, Technopôle Brest-Iroise, 29280 Plouzané, France.
| | - Stéphanie Madec
- Université de Brest, EA 3882 Laboratoire Universitaire de Biodiversité et d'Ecologie Microbienne, ESIAB, Technopôle Brest-Iroise, 29280 Plouzané, France.
| | - Emmanuel Coton
- Université de Brest, EA 3882 Laboratoire Universitaire de Biodiversité et d'Ecologie Microbienne, ESIAB, Technopôle Brest-Iroise, 29280 Plouzané, France.
| | - Nolwenn Hymery
- Université de Brest, EA 3882 Laboratoire Universitaire de Biodiversité et d'Ecologie Microbienne, ESIAB, Technopôle Brest-Iroise, 29280 Plouzané, France.
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Wang XC, Bao M, Li FH, Fan HX, Li HS, Li Y, Feng SB, Wu JJ. Development of a sensitive, competitive, indirect ELISA for the detection of fumonisin B 1 in corn originating from Anhui province, China. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2016; 51:107-112. [PMID: 26621078 DOI: 10.1080/03601234.2015.1092829] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Fumonisin B1 (FB1) is a secondary metabolite produced by Fusarium verticillioides or Fusarium proliferatum, which present in food and feed. It causes hazardous effects on human and animal health. A monoclonal antibody (mAb) against FB1 was produced and a simple, reliable and sensitive, competitive, indirect enzyme-linked immunosorbent assay (ci-ELISA) for detection of FB1 was developed and the experiment conditions were optimized. The coating concentration of FB1-ovalbumin (FB1-OVA) was 500 ng mL-1, the action concentrations of anti-FB1 mAb and goat anti-mouse IgG were 1.28 × 104 and 1:5000, respectively. The 50% inhibitory concentration (IC50) was 11 ng mL-1, with a detectable range of 1.25-250 ng mL-1, and a limit of determination (LOD) of 1.15 ng mL-1. The cross-reactivity (CR) of the antibody against fumonisin B2 (FB2) was 60.4, and <1% against deoxynivalenol (DON), aflatoxin B1 (AFB1), ochratoxin A (OTA) or zearalenone (ZEN). In spiked samples (250 ng g-1, 500 ng g-1, 1000 ng g-1), the mean recoveries ranged from 86.7 ± 5% to 102 ± 4%, and the coefficient of variation (CV) ranged from 3% to 10%. A survey of 96 corn samples from Bozhou, Fuyang, Bengbu, and Hefei, in Anhui province, China, was performed. Frequencies of FB1 contamination were 83.3%, 95.8%, 20.8% and 91.7%, and the mean concentrations of positive samples were 0.702 μg kg-1, 0.883 μg kg-1, 0.074 μg kg-1, and 0.276 μg kg-1, respectively. The results of this study suggest that the ci-ELISA developed in this study can be used to identify FB1 in corn, furthermore, further study is needed to investigate FB1 contamination in food and feed to prevent its harmful health effects.
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Affiliation(s)
- Xi C Wang
- a College of Animal Science and Technology , Anhui Agricultural University , Hefei , China
| | - Ming Bao
- b Aquatic technology promotion station of Anhui province , Hefei , China
| | - Fu H Li
- a College of Animal Science and Technology , Anhui Agricultural University , Hefei , China
| | - Hai X Fan
- a College of Animal Science and Technology , Anhui Agricultural University , Hefei , China
| | - Han S Li
- c Anhui Entry-Exit Inspection and Quarantine Bureau , Hefei , China
| | - Yu Li
- a College of Animal Science and Technology , Anhui Agricultural University , Hefei , China
| | - Shi B Feng
- a College of Animal Science and Technology , Anhui Agricultural University , Hefei , China
| | - Jin J Wu
- a College of Animal Science and Technology , Anhui Agricultural University , Hefei , China
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Liu Y, Du M, Zhang G. Proapoptotic activity of aflatoxin B 1 and sterigmatocystin in HepG2 cells. Toxicol Rep 2014; 1:1076-1086. [PMID: 28962319 PMCID: PMC5598229 DOI: 10.1016/j.toxrep.2014.10.016] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 10/15/2014] [Accepted: 10/17/2014] [Indexed: 10/31/2022] Open
Abstract
Aflatoxin B1 (AFB1) and sterigmatocystin (ST) are two hepatocarcinogenic mycotoxins that are commonly coexisted in cereal grains, and their co-proapoptotic activity in HepG2 cells was studied. The values of IC50, which is the dosage of mycotoxin resulting in a 50% cell growth inhibition measured by a sulforhodamine B (SRB) colorimetric assay, were 16.9 μM and 7.3 μM for AFB1 and ST, respectively. Additively and dose-dependently, cell apoptosis-related toxicity endpoints of double strand DNA and ATP content were decreased while the intracellular ROS and mitochondria membrane permeability (MMP) were increased. Consistently, when cell cycle is arrest at G0/G1 or S phase by AFB1 and/or ST, the experimental results from flow cytometry assay demonstrated that the rate of cell apoptosis and mitochondrial membrane potential were also additively increased and decreased, respectively, in a dose-dependent manner. Thus, the integrity of mitochondria (MMP and membrane potential) that is the central component of cell apoptosis is disrupted by AFB1 and ST in an additive manner. With the immunocytochemistry analysis showing increased expression of apoptosis-related proteins of Bax, Caspase-3 and p53 and decreased expression of Bcl-2 protein, an additive nature of the co-proapoptotic activity of AFB1 and ST was revealed.
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Affiliation(s)
| | | | - Genyi Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, 1800, Lihu Avenue, Wuxi 214122, Jiangsu Province, PR China
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Wu Q, Wang X, Wan D, Li J, Yuan Z. Crosstalk of JNK1-STAT3 is critical for RAW264.7 cell survival. Cell Signal 2014; 26:2951-60. [PMID: 25269780 DOI: 10.1016/j.cellsig.2014.09.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 09/07/2014] [Accepted: 09/23/2014] [Indexed: 01/09/2023]
Abstract
T-2 toxin, a major compound of trichothecenes, inhibits protein synthesis and induces inflammation and cell apoptosis through the activation of MAPK pathway. The JAK/STAT pathway has recently been shown to be downstream targets of trichothecenes. However, whether there is any crosstalk between JNK and JAK/STAT pathways in trichothecene toxicity has not been studied. In the present study, we explored this potential in RAW264.7 cells treated with T-2 toxin. Our results revealed a crosstalk between JNK1 and STAT3 after T-2 toxin treatment, which was mediated by K-Ras. T-2 toxin treatment resulted in rapid phosphorylation, and more importantly, JNK1-STAT3 signaling pathway was shown to maintain the normal function of the mitochondria and to inhibit T-2 toxin-induced apoptosis. Therefore, this pathway was considered to be a potential cell survival pathway. Breakdown and degranulation of ribosomes in the rough endoplasmic reticulum and swelling of mitochondria were clearly visible after the cells had been incubated with T-2 toxin for 12h. Our data suggest that T-2 toxin had a Janus face: it induced both apoptotic and cell survival pathways. These results suggest that the crosstalk and the balance between MAPK and JAK/STAT pathway might be involved in T-2 toxin-induced apoptosis in RAW264.7 cells.
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Affiliation(s)
- Qinghua Wu
- National Reference Laboratory of Veterinary Drug Residues (HZAU), MOA Laboratory of Risk Assessment for Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China; MAO Key Laboratory for Detection of Veterinary Drug Residues, MOA Laboratory of Risk Assessment for Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China; College of Life Science, Yangtze University, Jingzhou, Hubei 434025, China; Center for Basic and Applied Research, Faculty of Informatics and Management, University of Hradec Kralove, Hradec Kralove, Czech Republic.
| | - Xu Wang
- National Reference Laboratory of Veterinary Drug Residues (HZAU), MOA Laboratory of Risk Assessment for Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China; MAO Key Laboratory for Detection of Veterinary Drug Residues, MOA Laboratory of Risk Assessment for Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Dan Wan
- National Reference Laboratory of Veterinary Drug Residues (HZAU), MOA Laboratory of Risk Assessment for Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China; MAO Key Laboratory for Detection of Veterinary Drug Residues, MOA Laboratory of Risk Assessment for Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Juan Li
- National Reference Laboratory of Veterinary Drug Residues (HZAU), MOA Laboratory of Risk Assessment for Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China; MAO Key Laboratory for Detection of Veterinary Drug Residues, MOA Laboratory of Risk Assessment for Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Zonghui Yuan
- National Reference Laboratory of Veterinary Drug Residues (HZAU), MOA Laboratory of Risk Assessment for Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China; MAO Key Laboratory for Detection of Veterinary Drug Residues, MOA Laboratory of Risk Assessment for Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
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Ma Y, Zhang A, Shi Z, He C, Ding J, Wang X, Ma J, Zhang H. A mitochondria-mediated apoptotic pathway induced by deoxynivalenol in human colon cancer cells. Toxicol In Vitro 2012; 26:414-20. [DOI: 10.1016/j.tiv.2012.01.010] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Revised: 12/06/2011] [Accepted: 01/09/2012] [Indexed: 12/23/2022]
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Wang Y, He CH, Zheng H, Zhang HB. Characterization and comparison of Fumonisin B(1)-protein conjugates by six methods. Int J Mol Sci 2011; 13:84-96. [PMID: 22312240 PMCID: PMC3269674 DOI: 10.3390/ijms13010084] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Revised: 11/08/2011] [Accepted: 11/28/2011] [Indexed: 12/04/2022] Open
Abstract
In order to generate an antibody against a small hapten molecule, the hapten is cross-linked with carrier protein to make it immunogenic. In this study, the hapten (Fumonisin B(1), FB(1)) was coupled to ovalbumin (OVA) and bovine serum albumin (BSA), respectively by a short cross-linker reagent (glutaraldehyde, GA). To develop a technique for detecting the conjugation, the hapten-protein conjugates (FB(1)-OVA and FB(1)-BSA) were characterized thoroughly by ultraviolet (UV) spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, gel electrophoresis and matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF-MS), respectively. The molecular weights of FB(1)-BSA and FB(1)-OVA were 74,355.301 Da and 48,009.212 Da, respectively determined by the method of MALDI-TOF-MS. The molecular coupling ratios were 11 and 5 in FB(1)-BSA and FB(1)-OVA, respectively. In this experiment, MALDI-TOF-MS was selected as the most efficient method to evaluate the cross-linking effect and calculate the molecular coupling ratio.
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Affiliation(s)
- Ying Wang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; E-Mails: (Y.W.); (C.-H.H.); (H.Z.)
| | - Cheng-Hua He
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; E-Mails: (Y.W.); (C.-H.H.); (H.Z.)
| | - Hao Zheng
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; E-Mails: (Y.W.); (C.-H.H.); (H.Z.)
| | - Hai-Bin Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; E-Mails: (Y.W.); (C.-H.H.); (H.Z.)
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Wu Q, Huang L, Liu Z, Yao M, Wang Y, Dai M, Yuan Z. A comparison of hepatic in vitro metabolism of T-2 toxin in rats, pigs, chickens, and carp. Xenobiotica 2011; 41:863-73. [PMID: 21745144 DOI: 10.3109/00498254.2011.593206] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
T-2 toxin, a highly toxic member of the type-A trichothecenes, is produced by various Fusarium moulds that can potentially affect human health. It is strongly cytotoxic for human hematopoietic progenitors. Alimentary toxic aleukia (ATA), a disease typically associated with human, is primarily induced by T-2 toxin. A comparison of the metabolism of T-2 toxin incubated with hepatocytes of rats, piglets, chickens, and the hepatic subcellular fractions (microsomes and cytosol) of piglets, chickens, rats, and carp (common carp and grass carp) was carried out. The activities of the recombinant pig CYP3A29 on the transformation of T-2 and HT-2 toxins were preliminary studied. Metabolites were identified by novel LC/MS-IT-TOF. Qualitative similarities and differences across the species were observed. In liver microsomes, HT-2 toxin, neosolaniol (NEO), 3'-OH-T-2, and 3'-OH-HT-2 were detected in rats, chickens, and pigs. 3'-OH-HT-2 and HT-2 toxin was not detectable in common carp and grass crap, respectively. Moreover, in liver microsomes, the hydroxyl metabolites accounted for the largest percentage in carp, whereas the hydrolysis product, HT-2 toxin, was the major one for the land animals. Only hydrolysis products such as NEO and HT-2 toxin were detected in hepatocytes. Recombinant pig CYP3A29 was able to convert T-2 and HT-2 toxins to high rates of 3'-OH-T-2 and 3'-OH-HT-2, respectively. Both CYP450 and carboxylesterase enzymes have been found to play a role in the metabolism of T-2 toxin. Metabolism of T-2 toxin across species produces a similar spectrum of metabolites. Preliminary metabolic studies of carp reveal that ester hydrolysis of T-2 toxin in carp may not play as important a role as is the case with land animals.
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Affiliation(s)
- Qinghua Wu
- MOA Key Laboratory of Food Safety Evaluation/National Reference Laboratory of Veterinary Drug Residues (HZAU), Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China
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