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Kumar LK, Verma SK, Chandel R, Thumar M, Singh D, Onteru SK. Aflatoxin M1 decreases the expression of genes encoding tight junction proteins and influences the intestinal epithelial integrity. Mycotoxin Res 2023; 39:453-467. [PMID: 37794205 DOI: 10.1007/s12550-023-00505-2] [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: 05/18/2023] [Revised: 09/10/2023] [Accepted: 09/12/2023] [Indexed: 10/06/2023]
Abstract
Aflatoxin M1 (AFM1) is a mycotoxin that is commonly found as a milk contaminant, and its presence in milk has been linked to cytotoxicity. The present study aimed to evaluate the acute cytotoxic effects of AFM1 on intestinal Caco-2 cells. Initially, we checked the morphology and viability of Caco-2 cells after treatment with different concentrations of AFM1 (5 ng/L, 50 ng/L, 250 ng/L, 500 ng/L, 1000 ng/L, and 2000 ng/L) for different time intervals (6 h, 12 h, and 24 h). It was found that AFM1 did not show any effect on cell morphology, but 10% decrease in viability above 1000 ng/L after 12 h. Furthermore, DCFDA assay showed increased ROS production after 6 h treatments. qPCR analysis showed an increased expression of epithelial-specific cytoskeleton marker genes, Cytokeratin, Villin, Vimentin, and JAM-1, and a decreased expression of tight junction protein genes, Claudin-1, Occludin, and ZO-1. Similarly, we found an increased expression of Cyp1a1 transcript with an increasing AFM1 concentration and incubation time. This gene expression analysis showed AFM1 can cause disruption of tight junctions between intestinal cells, which was further confirmed by a transwell experiment. In conclusion, consumption of AFM1-contaminated milk does not show any effect on cells morphology and viability but decreases the expression of intestinal barrier transcripts that may lead to the disruption of intestinal barrier function and leaky gut.
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Affiliation(s)
- Lal Krishan Kumar
- Molecular Endocrinology, Functional Genomics & System Biology Laboratory, Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal (Haryana), India, 132001
| | - Surya Kant Verma
- Molecular Endocrinology, Functional Genomics & System Biology Laboratory, Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal (Haryana), India, 132001
| | - Rajeev Chandel
- Molecular Endocrinology, Functional Genomics & System Biology Laboratory, Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal (Haryana), India, 132001
| | - Meet Thumar
- Molecular Endocrinology, Functional Genomics & System Biology Laboratory, Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal (Haryana), India, 132001
| | - Dheer Singh
- Molecular Endocrinology, Functional Genomics & System Biology Laboratory, Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal (Haryana), India, 132001
| | - Suneel Kumar Onteru
- Molecular Endocrinology, Functional Genomics & System Biology Laboratory, Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal (Haryana), India, 132001.
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Bastos-Amador P, Duarte EL, Torres J, Caldeira AT, Silva I, Salvador C, Assunção R, Alvito P, Ferreira M. Maternal dietary exposure to mycotoxin aflatoxin B 1 promotes intestinal immune alterations and microbiota modifications increasing infection susceptibility in mouse offspring. Food Chem Toxicol 2023; 173:113596. [PMID: 36603704 DOI: 10.1016/j.fct.2022.113596] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 12/19/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023]
Abstract
Mycotoxins are secondary metabolites produced by fungi occurring in food that are toxic to animals and humans. Early-life mycotoxins exposure has been linked to diverse pathologies. However, how maternal exposure to mycotoxins impacts on the intestinal barrier function of progeny has not been explored. Here, exposure of pregnant and lactating C57Bl/6J female mice to aflatoxin B1 (AFB1; 400 μg/kg body weight/day; 3 times a week) in gelatine pellets, from embryonic day (E)11.5 until weaning (postnatal day 21), led to gut immunological changes in progeny. The results showed an overall increase of lymphocyte number in intestine, a reduction of expression of epithelial genes related to microbial defence, as well as a decrease in cytokine production by intestinal type 2 innate lymphoid cells (ILC2). While susceptibility to chemically induced colitis was not worsened, immune alterations were associated with changes in gut microbiota and with a higher vulnerability to infection by the protozoan Eimeria vermiformis at early-life. Together these results show that maternal dietary exposure to AFB1 can dampen intestinal barrier homeostasis in offspring decreasing their capability to tackle intestinal pathogens. These data provide insights to understand AFB1 potential harmfulness in early-life health in the context of intestinal infections.
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Affiliation(s)
- Patricia Bastos-Amador
- Food and Nutrition Department, National Institute of Health Dr. Ricardo Jorge, 1649-016, Lisbon, Portugal; Champalimaud Foundation, Champalimaud Centre for the Unknown, 1400-038, Lisbon, Portugal
| | - Elsa Leclerc Duarte
- University of Évora, School of Science and Technology, 7000-671, Évora, Portugal; MED-Mediterranean Institute for Agriculture, Environment and Development, 7006-554, Évora, Portugal
| | - Júlio Torres
- University of Coimbra, Center for Innovative Biomedicine and Biotechnology, Center for Neuroscience and Cell Biology, 3004-504, Coimbra, Portugal
| | | | - Inês Silva
- University of Évora, School of Science and Technology, 7000-671, Évora, Portugal; MED-Mediterranean Institute for Agriculture, Environment and Development, 7006-554, Évora, Portugal; HERCULES Laboratory, Universidade de Évora, 7000-809, Évora, Portugal
| | - Cátia Salvador
- HERCULES Laboratory, Universidade de Évora, 7000-809, Évora, Portugal
| | - Ricardo Assunção
- IUEM, Instituto Universitário Egas Moniz, Egas Moniz-Cooperativa de Ensino Superior, CRL, 2829 - 511, Caparica, Portugal; University of Aveiro, CESAM - Centre for Environmental and Marine Studies, 3810-193, Aveiro, Portugal
| | - Paula Alvito
- Food and Nutrition Department, National Institute of Health Dr. Ricardo Jorge, 1649-016, Lisbon, Portugal; University of Aveiro, CESAM - Centre for Environmental and Marine Studies, 3810-193, Aveiro, Portugal
| | - Manuela Ferreira
- Champalimaud Foundation, Champalimaud Centre for the Unknown, 1400-038, Lisbon, Portugal; University of Coimbra, Center for Innovative Biomedicine and Biotechnology, Center for Neuroscience and Cell Biology, 3004-504, Coimbra, Portugal.
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Benkerroum N, Ismail A. Human Breast Milk Contamination with Aflatoxins, Impact on Children's Health, and Possible Control Means: A Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:16792. [PMID: 36554670 PMCID: PMC9779431 DOI: 10.3390/ijerph192416792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/08/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
Aflatoxins are natural toxicants produced mainly by species of the Aspergillus genus, which contaminate virtually all feeds and foods. Apart from their deleterious health effects on humans and animals, they can be secreted unmodified or carried over into the milk of lactating females, thereby posing health risks to suckling babies. Aflatoxin M1 (AFM1) is the major and most toxic aflatoxin type after aflatoxin B1 (AFB1). It contaminates human breast milk upon direct ingestion from dairy products or by carry-over from the parent molecule (AFB1), which is hydroxylated in the liver and possibly in the mammary glands by cytochrome oxidase enzymes and then excreted into breast milk as AFM1 during lactation via the mammary alveolar epithelial cells. This puts suckling infants and children fed on this milk at a high risk, especially that their detoxifying activities are still weak at this age essentially due to immature liver as the main organ responsible for the detoxification of xenobiotics. The occurrence of AFM1 at toxic levels in human breast milk and associated health conditions in nursing children is well documented, with developing countries being the most affected. Different studies have demonstrated that contamination of human breast milk with AFM1 represents a real public health issue, which should be promptly and properly addressed to reduce its incidence. To this end, different actions have been suggested, including a wider and proper implementation of regulatory measures, not only for breast milk but also for foods and feeds as the upstream sources for breast milk contamination with AFM1. The promotion of awareness of lactating mothers through the organization of training sessions and mass media disclosures before and after parturition is of a paramount importance for the success of any action. This is especially relevant that there are no possible control measures to ensure compliance of lactating mothers to specific regulatory measures, which can yet be appropriate for the expansion of breast milk banks in industrialized countries and emergence of breast milk sellers. This review attempted to revisit the public health issues raised by mother milk contamination with AFM1, which remains undermined despite the numerous relevant publications highlighting the needs to tackle its incidence as a protective measure for the children physical and mental health.
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Affiliation(s)
- Noreddine Benkerroum
- Expertise Aliments Santé, Food Health Consultancy, 7450 Dollier Str., Montréal, QC H1S 2J6, Canada
| | - Amir Ismail
- Institute of Food Science and Nutrition, Bahauddin Zakariya University, Multan 60000, Pakistan
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Gao Y, Bao X, Meng L, Liu H, Wang J, Zheng N. Aflatoxin B1 and Aflatoxin M1 Induce Compromised Intestinal Integrity through Clathrin-Mediated Endocytosis. Toxins (Basel) 2021; 13:184. [PMID: 33801329 PMCID: PMC8002210 DOI: 10.3390/toxins13030184] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/20/2021] [Accepted: 02/22/2021] [Indexed: 02/08/2023] Open
Abstract
With the growing diversity and complexity of diet, humans are at risk of simultaneous exposure to aflatoxin B1 (AFB1) and aflatoxin M1 (AFM1), which are well-known contaminants in dairy and other agricultural products worldwide. The intestine represents the first barrier against external contaminants; however, evidence about the combined effect of AFB1 and AFM1 on intestinal integrity is lacking. In vivo, the serum biochemical parameters related to intestinal barrier function, ratio of villus height/crypt depth, and distribution pattern of claudin-1 and zonula occluden-1 were significantly affected in mice exposed to 0.3 mg/kg b.w. AFB1 and 3.0 mg/kg b.w. AFM1. In vitro results on differentiated Caco-2 cells showed that individual and combined AFB1 (0.5 and 4 μg/mL) and AFM1 (0.5 and 4 μg/mL) decreased cell viability and trans-epithelial electrical resistance values as well as increased paracellular permeability of fluorescein isothiocyanate-dextran in a dose-dependent manner. Furthermore, AFM1 aggravated AFB1-induced compromised intestinal barrier, as demonstrated by the down-regulation of tight junction proteins and their redistribution, particularly internalization. Adding the inhibitor chlorpromazine illustrated that clathrin-mediated endocytosis partially contributed to the compromised intestinal integrity. Synergistic and additive effects were the predominant interactions, suggesting that these toxins are likely to have negative effects on human health.
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Affiliation(s)
- Yanan Gao
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.G.); (X.B.); (L.M.); (H.L.); (J.W.)
- Laboratory of Quality and Safety Risk Assessment for Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Milk and Milk Products Inspection, Center of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xiaoyu Bao
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.G.); (X.B.); (L.M.); (H.L.); (J.W.)
- Laboratory of Quality and Safety Risk Assessment for Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Milk and Milk Products Inspection, Center of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Lu Meng
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.G.); (X.B.); (L.M.); (H.L.); (J.W.)
- Laboratory of Quality and Safety Risk Assessment for Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Milk and Milk Products Inspection, Center of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Huimin Liu
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.G.); (X.B.); (L.M.); (H.L.); (J.W.)
- Laboratory of Quality and Safety Risk Assessment for Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Milk and Milk Products Inspection, Center of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jiaqi Wang
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.G.); (X.B.); (L.M.); (H.L.); (J.W.)
- Laboratory of Quality and Safety Risk Assessment for Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Milk and Milk Products Inspection, Center of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Nan Zheng
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.G.); (X.B.); (L.M.); (H.L.); (J.W.)
- Laboratory of Quality and Safety Risk Assessment for Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Milk and Milk Products Inspection, Center of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
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Rapid, on-site, and sensitive detection of aflatoxin M1 in milk products by using time-resolved fluorescence microsphere test strip. Food Control 2021. [DOI: 10.1016/j.foodcont.2020.107616] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Wu K, Jia S, Zhang J, Zhang C, Wang S, Rajput SA, Sun L, Qi D. Transcriptomics and flow cytometry reveals the cytotoxicity of aflatoxin B 1 and aflatoxin M 1 in bovine mammary epithelial cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 209:111823. [PMID: 33360594 DOI: 10.1016/j.ecoenv.2020.111823] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 12/13/2020] [Accepted: 12/16/2020] [Indexed: 06/12/2023]
Abstract
Aflatoxin is a known mycotoxin that pollutes various grains widely in the environment. Aflatoxin B1 (AFB1) and Aflatoxin M1 (AFM1) have been shown to induce cytotoxicity in many cells, yet their effects on mammary epithelial cells remain unclear. In this study, we examined the toxicity and the effects of AFB1 and AFM1 on bovine mammary epithelial cells (BME cells). The cells were treated with AFB1 or AFM1 at a concentration of 0-10 mg/L for 24 or 48 h, followed by cytotoxicity assays, flow cytometry, and transcriptomics. Our results demonstrated that AFB1 and AFM1 induced cell proliferation inhibition, apoptosis and cell cycle arrest. However, the level of intracellular reactive oxygen species has no significant difference. The RNA-Seq results also showed that AFB1 and AFM1 changed many related gene expressions like apoptosis and oxidative stress, cycle, junction, and signaling pathway. Taken together, AFB1 and AFM1 were found to affect cytotoxicity and related gene changes in BME cells. Notably, this study reported that 2 mg/L of AFB1 and AFM1 affected the expression of methylation-related genes, and ultimately altered the rate of m6A methylation in RNA. It may provide a potential direction for toxins to indirectly regulate gene expression by affecting RNA methylation modification. Our research provides some novel insights and data about AFB1 and AFM1 toxicity in BME cells.
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Affiliation(s)
- Kuntan Wu
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Sifan Jia
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jiacai Zhang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Cong Zhang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Shuai Wang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Shahid Ali Rajput
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Lvhui Sun
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Desheng Qi
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
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Aflatoxin M1 in Milk Worldwide from 1988 to 2020: A Systematic Review and Meta-Analysis. J FOOD QUALITY 2020. [DOI: 10.1155/2020/8862738] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background. Aflatoxins are found in various types of food and animal feed. Food contamination with aflatoxin toxin is of particular importance today. Various studies have reported different prevalence of aflatoxin M1 in animal milk. Therefore, due to the importance of this toxin, its role in health, and lack of general statistics about it worldwide, the present study aimed to determine the prevalence of aflatoxin M1 in milk worldwide with a systematic review and meta-analysis study. Methods. In this review study, national and international databases were extracted from SID, MagIran, IranMedex, IranDoc, Embase, ScienceDirect, Scopus, PubMed, and Web of Science (ISI) between January 1988 and February 2020. A random effects model was used for analysis, and heterogeneity of studies with an I2 index was investigated. Data were analyzed using Comprehensive Meta-Analysis (version 2). Results. The prevalence of aflatoxin M1 in milk worldwide from January 1988 to February 2020 in 122 articles with a sample size of 18921 was 79.1% (95% CI: 75.5–82.3%). Regarding the heterogeneity based on metaregression, there was a significant difference between the effect of the year of study (p≤0.001) and sample size (p≤0.001) with the prevalence of aflatoxin M1 in animal milk. Conclusion. The results of this study show that the prevalence of aflatoxin M1 in milk is high worldwide. Therefore, considering the importance of the milk group and its products, special measures should be taken to protect the ration from aflatoxin molds and milk quality.
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Naz N, Abbas M, Rubab A, Kanwal K. Occurrence of Aflatoxin M1 in Milk-based Mithae samples from Pakistan. OPEN CHEM 2019. [DOI: 10.1515/chem-2019-0123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractMilk products with aflatoxin M1 (AFM1) contamination are a lethal dilemma worldwide due to their carcinogenic and mutagenic effects especially in developing countries. This study investigated the occurrence of AFM1 in milk-based mithae samples marketed in Lahore, Pakistan. Two hundred (n = 200) different types of mithae samples were analyzed for AFM1 using a HPLC florescence detector. Results showed that AFM1 was present in 76% of the analyzed samples, of which more than 80% had a much higher level of AFM1 than the European Union permissible level of i.e.0.05 μg/kg in milk products. The aflatoxin M1 in all the tested samples was observed in the range of 0.004 to 1.49 μg/kg. On average, the Gulab Jamun and Malai Laddu showed the highest level of aflatoxin M1 i.e. 1.49 and 1.17μg/kg, respectively. The lowest amount of aflatoxin M1 was found in Kalakand samples 0.004μg/ kg. The conclusion drawn from this data revealed that almost three-fourths of the mithae samples were highly contaminated with AFM1 due to their main component, milk. The consumption of milk-based mithae is popular due to health benefits as well as being part of tradition. Instead of being nourishing and beneficial, it is been found to be hazardous to human health due to aflatoxin contamination. Continued monitoring of aflatoxin M1with strict rules and regulations is required to prevent aflatoxin accumulation in this favorite food commodity.
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Affiliation(s)
- Narjis Naz
- Department of Chemistry, Lahore College for Women University, Lahore, Pakistan
| | - Mateen Abbas
- Department of Toxicology, Quality Operations Laboratory, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Anam Rubab
- Department of Chemistry, Lahore College for Women University, Lahore, Pakistan
| | - Kinza Kanwal
- Department of Pharmacology and Toxicology, University of Veterinary and Animal Sciences, Lahore, Pakistan
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Assaf JC, Nahle S, Chokr A, Louka N, Atoui A, El Khoury A. Assorted Methods for Decontamination of Aflatoxin M1 in Milk Using Microbial Adsorbents. Toxins (Basel) 2019; 11:E304. [PMID: 31146398 PMCID: PMC6628408 DOI: 10.3390/toxins11060304] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/12/2019] [Accepted: 05/15/2019] [Indexed: 01/30/2023] Open
Abstract
Aflatoxins (AF) are carcinogenic metabolites produced by different species of Aspergillus which readily colonize crops. AFM1 is secreted in the milk of lactating mammals through the ingestion of feedstuffs contaminated by aflatoxin B1 (AFB1). Therefore, its presence in milk, even in small amounts, presents a real concern for dairy industries and consumers of dairy products. Different strategies can lead to the reduction of AFM1 contamination levels in milk. They include adopting good agricultural practices, decreasing the AFB1 contamination of animal feeds, or using diverse types of adsorbent materials. One of the most effective types of adsorbents used for AFM1 decontamination are those of microbial origin. This review discusses current issues about AFM1 decontamination methods. These methods are based on the use of different bio-adsorbent agents such as bacteria and yeasts to complex AFM1 in milk. Moreover, this review answers some of the raised concerns about the binding stability of the formed AFM1-microbial complex. Thus, the efficiency of the decontamination methods was addressed, and plausible experimental variants were discussed.
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Affiliation(s)
- Jean Claude Assaf
- Centre d'Analyses et de Recherche (CAR), Unité de Recherche Technologies et Valorisation agro-Alimentaire (UR-TVA), Faculté des Sciences, Université Saint-Joseph de Beyrouth, Campus des sciences et technologies, Mar Roukos, Matn 1104-2020, Lebanon .
- Research Laboratory of Microbiology, Department of Life and Earth Sciences, Faculty of Sciences I, Lebanese University, Hadat Campus, Beirut P.O Box 5, Lebanon.
- Platform of Research and Analysis in Environmental Sciences (PRASE), Doctoral School of Sciences and Technologies, Lebanese University, Hadat Campus, Beirut P.O. Box 6573/14, Lebanon.
| | - Sahar Nahle
- Centre d'Analyses et de Recherche (CAR), Unité de Recherche Technologies et Valorisation agro-Alimentaire (UR-TVA), Faculté des Sciences, Université Saint-Joseph de Beyrouth, Campus des sciences et technologies, Mar Roukos, Matn 1104-2020, Lebanon .
- Research Laboratory of Microbiology, Department of Life and Earth Sciences, Faculty of Sciences I, Lebanese University, Hadat Campus, Beirut P.O Box 5, Lebanon.
- Platform of Research and Analysis in Environmental Sciences (PRASE), Doctoral School of Sciences and Technologies, Lebanese University, Hadat Campus, Beirut P.O. Box 6573/14, Lebanon.
| | - Ali Chokr
- Research Laboratory of Microbiology, Department of Life and Earth Sciences, Faculty of Sciences I, Lebanese University, Hadat Campus, Beirut P.O Box 5, Lebanon.
- Platform of Research and Analysis in Environmental Sciences (PRASE), Doctoral School of Sciences and Technologies, Lebanese University, Hadat Campus, Beirut P.O. Box 6573/14, Lebanon.
| | - Nicolas Louka
- Centre d'Analyses et de Recherche (CAR), Unité de Recherche Technologies et Valorisation agro-Alimentaire (UR-TVA), Faculté des Sciences, Université Saint-Joseph de Beyrouth, Campus des sciences et technologies, Mar Roukos, Matn 1104-2020, Lebanon .
| | - Ali Atoui
- Research Laboratory of Microbiology, Department of Life and Earth Sciences, Faculty of Sciences I, Lebanese University, Hadat Campus, Beirut P.O Box 5, Lebanon.
| | - André El Khoury
- Centre d'Analyses et de Recherche (CAR), Unité de Recherche Technologies et Valorisation agro-Alimentaire (UR-TVA), Faculté des Sciences, Université Saint-Joseph de Beyrouth, Campus des sciences et technologies, Mar Roukos, Matn 1104-2020, Lebanon .
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Bao XY, Li SL, Gao YN, Wang JQ, Zheng N. Transcriptome analysis revealed that aflatoxin M1 could cause cell cycle arrest in differentiated Caco-2 cells. Toxicol In Vitro 2019; 59:35-43. [PMID: 30928695 DOI: 10.1016/j.tiv.2019.03.035] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 03/22/2019] [Accepted: 03/26/2019] [Indexed: 12/20/2022]
Abstract
Being a hydroxylated metabolite of aflatoxin B1 (AFB1) and the most threatening aspect of AFB1 contamination, aflatoxin M1 (AFM1) can lead to hepatotoxicity and hepato-carcinogenicity, and possess intestinal cytotoxicity. However, little is known about the potential mechanisms of the extrahepatic effect. The aim of this study was to investigate intestinal dysfunction induced by AFM1 via transcriptome analysis. Gene expression profiling was analyzed to comparatively characterize the differentially expressed genes (DEGs) after differentiated Caco-2 cells were exposed to different concentrations of AFM1 for 48 h. A total of 165 DEGs were significantly clustered into two down-regulated patterns. Protein-protein interaction (PPI) network analysis based on Search Tool for Retrieval of Interacting Genes (STRING)suggested that 23 key enzymes mainly participated in the regulation of the cell cycle. Q-PCR analysis was performed to validate that key 12 genes (BUB1, BUB1B, MAD2L1, CCNA2, RB1, CDK1, ANAPC4, ATM, KITLG, PRKAA2, SIRT1, and SOS1) were involved. This study firstly revealed that the toxicity of AFM1 to intestinal functions may be partly due to the occurrence of cell cycle arrest, which is linked to changes in CDK1, SOS1/Akt, and AMPK signaling molecules.
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Affiliation(s)
- X Y Bao
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China; Key Laboratory of Quality & Safety Control for Dairy Products of Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - S L Li
- Key Laboratory of Quality & Safety Control for Dairy Products of Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Y N Gao
- Key Laboratory of Quality & Safety Control for Dairy Products of Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - J Q Wang
- Key Laboratory of Quality & Safety Control for Dairy Products of Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
| | - N Zheng
- Key Laboratory of Quality & Safety Control for Dairy Products of Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
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11
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Ghadiri S, Spalenza V, Dellafiora L, Badino P, Barbarossa A, Dall'Asta C, Nebbia C, Girolami F. Modulation of aflatoxin B1 cytotoxicity and aflatoxin M1 synthesis by natural antioxidants in a bovine mammary epithelial cell line. Toxicol In Vitro 2019; 57:174-183. [PMID: 30849473 DOI: 10.1016/j.tiv.2019.03.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 02/14/2019] [Accepted: 03/04/2019] [Indexed: 02/07/2023]
Abstract
Aflatoxin (AF) B1, a widespread food and feed contaminant, is bioactivated by drug metabolizing enzymes (DME) to cytotoxic and carcinogenic metabolites like AFB1-epoxide and AFM1, a dairy milk contaminant. A number of natural antioxidants have been reported to afford a certain degree of protection against AFB1 (cyto)toxicity. As the mammary gland potentially participates in the generation of AFB1 metabolites, we evaluated the role of selected natural antioxidants (i.e. curcumin, quercetin and resveratrol) in the modulation of AFB1 toxicity and metabolism using a bovine mammary epithelial cell line (BME-UV1). Quercetin and, to a lesser extent, resveratrol and curcumin from Curcuma longa (all at 5 μM) significantly counteracted the AFB1-mediated impairment of cell viability (concentration range: 96-750 nM). Moreover, quercetin was able to significantly reduce the synthesis of AFM1. The quantitative PCR analysis on genes encoding for DME (phase I and II) and antioxidant enzymes showed that AFB1 caused an overall downregulation of the detoxifying systems, and mainly of GSTA1, which mediates the GSH conjugation of the AFB1-epoxide. The negative modulation of GSTA1 was efficiently reversed in the presence of quercetin, which significantly increased GSH levels as well. It is suggested that quercetin exerts its beneficial effects by depressing the bio-transformation of AFB1 and counterbalancing its pro-oxidant effects.
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Affiliation(s)
- Shiva Ghadiri
- Department of Veterinary Sciences, University of Torino, Largo Braccini 2, Grugliasco, Italy
| | - Veronica Spalenza
- Department of Veterinary Sciences, University of Torino, Largo Braccini 2, Grugliasco, Italy
| | - Luca Dellafiora
- Department of Food and Drug, University of Parma, Via G.P. Usberti 27/A, 43124 Parma, Italy
| | - Paola Badino
- Department of Veterinary Sciences, University of Torino, Largo Braccini 2, Grugliasco, Italy
| | - Andrea Barbarossa
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, Ozzano dell'Emilia, Italy
| | - Chiara Dall'Asta
- Department of Food and Drug, University of Parma, Via G.P. Usberti 27/A, 43124 Parma, Italy
| | - Carlo Nebbia
- Department of Veterinary Sciences, University of Torino, Largo Braccini 2, Grugliasco, Italy
| | - Flavia Girolami
- Department of Veterinary Sciences, University of Torino, Largo Braccini 2, Grugliasco, Italy.
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Ferreira RG, Cardoso MV, de Souza Furtado KM, Espíndola KMM, Amorim RP, Monteiro MC. Epigenetic alterations caused by aflatoxin b1: a public health risk in the induction of hepatocellular carcinoma. Transl Res 2019; 204:51-71. [PMID: 30304666 DOI: 10.1016/j.trsl.2018.09.001] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 08/27/2018] [Accepted: 09/02/2018] [Indexed: 02/07/2023]
Abstract
Aflatoxin B1 (AFB1) is currently the most commonly studied mycotoxin due to its great toxicity, its distribution in a wide variety of foods such as grains and cereals and its involvement in the development of + (hepatocellular carcinoma; HCC). HCC is one of the main types of liver cancer, and has become a serious public health problem, due to its high incidence mainly in Southeast Asia and Africa. Studies show that AFB1 acts in synergy with other risk factors such as hepatitis B and C virus leading to the development of HCC through genetic and epigenetic modifications. The genetic modifications begin in the liver through the biomorphic AFB1, the AFB1-exo-8.9-Epoxy active, which interacts with DNA to form adducts of AFB1-DNA. These adducts induce mutation in codon 249, mediated by a transversion of G-T in the p53 tumor suppressor gene, causing HCC. Thus, this review provides an overview of the evidence for AFB1-induced epigenetic alterations and the potential mechanisms involved in the development of HCC, focusing on a critical analysis of the importance of severe legislation in the detection of aflatoxins.
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Affiliation(s)
- Roseane Guimarães Ferreira
- Neurosciences and Cell Biology Post-Graduation Program, Biological Sciences Institute, Federal University of Pará/UFPA, Belém, Pará, Brazil.
| | - Magda Vieira Cardoso
- Pharmaceutical Science Post-Graduation Program, Health Science Institute, Federal University of Pará/UFPA, Belém, Pará, Brazil.
| | | | | | | | - Marta Chagas Monteiro
- Neurosciences and Cell Biology Post-Graduation Program, Pharmaceutical Science Post-Graduation Program, Health Science Institute, Federal University of Pará/UFPA, Belém, Pará, Brazil.
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13
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14
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Cammilleri G, Graci S, Collura R, Buscemi MD, Vella A, Macaluso A, Giaccone V, Giangrosso G, Cicero A, Lo Dico GM, Pulvirenti A, Cicero N, Ferrantelli V. Aflatoxin M 1 in cow, sheep, and donkey milk produced in Sicily, Southern Italy. Mycotoxin Res 2018; 35:47-53. [PMID: 30215192 DOI: 10.1007/s12550-018-0329-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 08/31/2018] [Accepted: 09/05/2018] [Indexed: 01/30/2023]
Abstract
Samples (n = 485) of raw (n = 394) or heat-treated (n = 91) milk of three different species (cow, n = 170; sheep, n = 133; donkey, n = 84), collected 2013-2016 in Western Sicily (Southern Italy), were analyzed for aflatoxin M1 (AFM1) by enzyme-linked immunosorbent assay (ELISA). Positive ELISA results were further analyzed by HPLC with fluorescence detection. Both methods had a detection limit for AFM1 in milk of 7 ng kg-1. ELISA yielded 12.9 and 5% positives in cows and sheep milk, respectively, all samples of donkey milk were negative. Levels of AFM1 were in most cases at 0.007-< 0.05 μg kg-1, only two samples (sheep milk) slightly exceeded the European Union maximum level of 0.05 μg kg-1. Only 6% of the samples were positive for AFM1 in a concentration range of 0.008-0.15 μg kg-1. Only milk samples collected directly from farms were positive. Overall, the levels were much lower than previously reported for Southern Italy cow and sheep milk samples purchased in retail stores. The results of this work indicate a continuous improvement of the feeding techniques on dairy farms of Southern Italy, which is essential to ensure consumers' protection.
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Affiliation(s)
- Gaetano Cammilleri
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", via Gino Marinuzzi 3, 90129, Palermo, Italy.
| | - Stefania Graci
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", via Gino Marinuzzi 3, 90129, Palermo, Italy
| | - Rosaria Collura
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", via Gino Marinuzzi 3, 90129, Palermo, Italy
| | - Maria Drussilla Buscemi
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", via Gino Marinuzzi 3, 90129, Palermo, Italy
| | - Antonio Vella
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", via Gino Marinuzzi 3, 90129, Palermo, Italy
| | - Andrea Macaluso
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", via Gino Marinuzzi 3, 90129, Palermo, Italy
| | - Vita Giaccone
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", via Gino Marinuzzi 3, 90129, Palermo, Italy
| | - Giuseppe Giangrosso
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", via Gino Marinuzzi 3, 90129, Palermo, Italy
| | - Antonello Cicero
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", via Gino Marinuzzi 3, 90129, Palermo, Italy
| | - Gianluigi Maria Lo Dico
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", via Gino Marinuzzi 3, 90129, Palermo, Italy
| | - Andrea Pulvirenti
- Dipartimento Scienze della Vita, Università degli studi di Modena e Reggio Emilia, Via Università 4, 41121, Modena, Italy
| | - Nicola Cicero
- Dipartimento SASTAS, Università degli studi di Messina, Polo Universitario dell'Annunziata, 98168, Messina, Italy
| | - Vincenzo Ferrantelli
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", via Gino Marinuzzi 3, 90129, Palermo, Italy
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Marchese S, Polo A, Ariano A, Velotto S, Costantini S, Severino L. Aflatoxin B1 and M1: Biological Properties and Their Involvement in Cancer Development. Toxins (Basel) 2018; 10:E214. [PMID: 29794965 PMCID: PMC6024316 DOI: 10.3390/toxins10060214] [Citation(s) in RCA: 251] [Impact Index Per Article: 41.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 05/20/2018] [Accepted: 05/22/2018] [Indexed: 12/12/2022] Open
Abstract
Aflatoxins are fungal metabolites found in feeds and foods. When the ruminants eat feedstuffs containing Aflatoxin B1 (AFB1), this toxin is metabolized and Aflatoxin M1 (AFM1) is excreted in milk. International Agency for Research on Cancer (IARC) classified AFB1 and AFM1 as human carcinogens belonging to Group 1 and Group 2B, respectively, with the formation of DNA adducts. In the last years, some epidemiological studies were conducted on cancer patients aimed to evaluate the effects of AFB1 and AFM1 exposure on cancer cells in order to verify the correlation between toxin exposure and cancer cell proliferation and invasion. In this review, we summarize the activation pathways of AFB1 and AFM1 and the data already reported in literature about their correlation with cancer development and progression. Moreover, considering that few data are still reported about what genes/proteins/miRNAs can be used as damage markers due to AFB1 and AFM1 exposure, we performed a bioinformatic analysis based on interaction network and miRNA predictions to identify a panel of genes/proteins/miRNAs that can be used as targets in further studies for evaluating the effects of the damages induced by AFB1 and AFM1 and their capacity to induce cancer initiation.
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Affiliation(s)
- Silvia Marchese
- Unità di Farmacologia e Tossicologia-Dipartimento di Medicina Veterinaria e Produzioni Animali, Università degli Studi di Napoli "Federico II", 80138 Napoli, Italy.
| | - Andrea Polo
- Unità di Farmacologia Sperimentale, IRCCS Istituto Nazionale Tumori "Fondazione G. Pascale", 80131 Napoli, Italy.
| | - Andrea Ariano
- Unità di Farmacologia e Tossicologia-Dipartimento di Medicina Veterinaria e Produzioni Animali, Università degli Studi di Napoli "Federico II", 80138 Napoli, Italy.
| | - Salvatore Velotto
- Unità di Farmacologia e Tossicologia-Dipartimento di Medicina Veterinaria e Produzioni Animali, Università degli Studi di Napoli "Federico II", 80138 Napoli, Italy.
| | - Susan Costantini
- Unità di Farmacologia Sperimentale, IRCCS Istituto Nazionale Tumori "Fondazione G. Pascale", 80131 Napoli, Italy.
| | - Lorella Severino
- Unità di Farmacologia e Tossicologia-Dipartimento di Medicina Veterinaria e Produzioni Animali, Università degli Studi di Napoli "Federico II", 80138 Napoli, Italy.
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16
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Assaf JC, Atoui A, Khoury AE, Chokr A, Louka N. A comparative study of procedures for binding of aflatoxin M1 to Lactobacillus rhamnosus GG. Braz J Microbiol 2018; 49:120-127. [PMID: 28843807 PMCID: PMC5790588 DOI: 10.1016/j.bjm.2017.05.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 04/26/2017] [Accepted: 05/09/2017] [Indexed: 11/25/2022] Open
Abstract
Several strains of lactic acid bacteria (LAB), frequently used in food fermentation and preservation, have been reported to bind different types of toxins in liquid media. This study was carried out to investigate the effect of different concentrations of Lactobacillus rhamnosus GG (ATCC 53103) to bind aflatoxin M1 (AFM1) in liquid media. AFM1 binding was tested following repetitive washes or filtration procedures in combination with additional treatments such as heating, pipetting, and centrifugation. The mixture of L. rhamnosus GG and AFM1 was incubated for 18h at 37°C and the binding efficiency was determined by quantifying the unbound AFM1 using HPLC. The stability of the complexes viable bacteria-AFM1 and heat treated bacteria-AFM1 was tested. Depending on the bacterial concentration and procedure used, the percentages of bound AFM1 by L. rhamnosus GG varied from as low as undetectable to as high as 63%. The highest reduction in the level of unbound AFM1 was recorded for the five washes procedure that involved heating and pipetting. Results also showed that binding was partially reversible and AFM1 was released after repeated washes. These findings highlight the effect of different treatments on the binding of AFM1 to L. rhamnosus GG in liquid matrix.
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Affiliation(s)
- Jean Claude Assaf
- Université Saint-Joseph de Beyrouth, Campus des Sciences et Technologies, Faculté des Sciences, Matn, Lebanon; Faculty of Sciences I Lebanese University, Department of Life and Earth Sciences, Laboratory of Microbiology, Beirut, Lebanon; Lebanese University, Doctoral School of Sciences and Technologies, Platform of Research and Analysis in Environmental Sciences (PRASE), Beirut, Lebanon; Université Saint-Joseph de Beyrouth, Ecole Doctorale "Sciences et Santé", Campus des Sciences Médicales et Infirmières, Beirut, Lebanon
| | - Ali Atoui
- Faculty of Sciences I Lebanese University, Department of Life and Earth Sciences, Laboratory of Microbiology, Beirut, Lebanon
| | - André El Khoury
- Université Saint-Joseph de Beyrouth, Campus des Sciences et Technologies, Faculté des Sciences, Matn, Lebanon
| | - Ali Chokr
- Faculty of Sciences I Lebanese University, Department of Life and Earth Sciences, Laboratory of Microbiology, Beirut, Lebanon; Lebanese University, Doctoral School of Sciences and Technologies, Platform of Research and Analysis in Environmental Sciences (PRASE), Beirut, Lebanon.
| | - Nicolas Louka
- Université Saint-Joseph de Beyrouth, Campus des Sciences et Technologies, Faculté des Sciences, Matn, Lebanon
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Luo X, Li K, Xing J, Qi L, Yang M, Wang R, Wang L, Li Y, Chen Z. In vivo toxicity assessment of aflatoxin B1-contaminated corn after ozone degradation. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2017; 35:341-350. [DOI: 10.1080/19440049.2017.1395518] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Xiaohu Luo
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center for Food Safety and Quality Control in Jiangsu Province, Wuxi, China
| | - Ke Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center for Food Safety and Quality Control in Jiangsu Province, Wuxi, China
| | - Jiali Xing
- Ningbo Institute for Food Control, Ningbo, China
| | - Lijun Qi
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center for Food Safety and Quality Control in Jiangsu Province, Wuxi, China
| | - Ming Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center for Food Safety and Quality Control in Jiangsu Province, Wuxi, China
| | - Ren Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center for Food Safety and Quality Control in Jiangsu Province, Wuxi, China
| | - Li Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center for Food Safety and Quality Control in Jiangsu Province, Wuxi, China
| | - Yanan Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center for Food Safety and Quality Control in Jiangsu Province, Wuxi, China
| | - Zhengxing Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center for Food Safety and Quality Control in Jiangsu Province, Wuxi, China
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18
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Sharifzadeh A, Ghasemi-Dehkordi P, Foroughi M, Mardanpour-Shahrekordi E, Ramazi S. Aflatoxin M1 Contamination Levels in Cheeses Sold in Isfahan Province, Iran. Osong Public Health Res Perspect 2017; 8:260-263. [PMID: 28904848 PMCID: PMC5594714 DOI: 10.24171/j.phrp.2017.8.4.05] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 07/26/2017] [Accepted: 07/31/2017] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES Aflatoxin M1 (AFM1)-contaminated dairy products pose serious human health risks, causing liver and renal failure if consumed. They are also related to decreased milk and egg production in infected animals. This study investigated the AFM1 contamination levels in cheeses sold in Isfahan province, Iran, by enzyme-linked immunosorbent assay (ELISA). METHODS A total of 100 white cheese samples were randomly collected from supermarkets in Isfahan province and after extraction using dichloromethane were prepared for the ELISA. RESULTS Of the 100 samples, 52 (52%) were contaminated by AFM1, at levels ranging from 50.2 to 424.4 ng/kg. The remaining 48% of the samples had undetectable AFM1 levels (< 50 ng/kg). Based on the standard limit set by the European Commission and Iran, 8% (8/100) of the AFM1-positive samples (with concentrations between 250.2 and 424.4 ng/kg) had levels higher than the permissible value of 250 ng/kg. CONCLUSION Although the percentage of cheese samples in Isfahan province with AFM1 levels exceeding the national permissible limit was low, the examination of cheeses and the milk used for their production is nevertheless important for ensuring public health. Furthermore, optimum storage conditions of animal feed should be ensured, and livestock nutrition must be monitored for the presence of AFM1 and other aflatoxins.
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Affiliation(s)
- Ali Sharifzadeh
- Department of Microbiology, Faculty of Veterinary Medicine, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | - Payam Ghasemi-Dehkordi
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Mohsen Foroughi
- Faculty of Veterinary Medicine, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | | | - Shahin Ramazi
- Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
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Matabaro E, Ishimwe N, Uwimbabazi E, Lee BH. Current Immunoassay Methods for the Rapid Detection of Aflatoxin in Milk and Dairy Products. Compr Rev Food Sci Food Saf 2017; 16:808-820. [DOI: 10.1111/1541-4337.12287] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 06/11/2017] [Accepted: 06/14/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Emmanuel Matabaro
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology; Jiangnan Univ.; Wuxi Jiangsu 214122 China
| | - Nestor Ishimwe
- Hefei Natl. Laboratory for Physical Sciences at Microscale and School of Life Sciences; Univ. of Science and Technology of China; Hefei Anhui 230027 China
- the Dept. of Chemistry, College of Science and Technology; Univ. of Rwanda; Rwanda
| | - Eric Uwimbabazi
- School of Food Science; Jiangnan Univ.; Wuxi Jiangsu 214122 China
| | - Byong H. Lee
- Dept. of Microbiology and Immunology; McGill Univ.; Montreal QC H3A 2B4 Canada
- Dept. of Food Science and Biotechnology; Kangwon Natl. Univ.; Chuncheon 200701 South Korea
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20
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Guo M, Zhou B, Huang Z, Zhao C, Zhang J, Huang B. A New Method for Determination of Alfatoxin M1 in Milk by Ultrasensitive Time-Resolved Fluoroimmunoassay. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-017-0850-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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21
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Akbari P, Braber S, Varasteh S, Alizadeh A, Garssen J, Fink-Gremmels J. The intestinal barrier as an emerging target in the toxicological assessment of mycotoxins. Arch Toxicol 2017; 91:1007-1029. [PMID: 27417439 PMCID: PMC5316402 DOI: 10.1007/s00204-016-1794-8] [Citation(s) in RCA: 122] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 07/05/2016] [Indexed: 02/08/2023]
Abstract
Mycotoxins, the secondary metabolites of fungal species, are the most frequently occurring natural food contaminants in human and animal diets. Risk assessment of mycotoxins focused as yet on their mutagenic, genotoxic and potential carcinogenic effects. Recently, there is an increasing awareness of the adverse effects of various mycotoxins on vulnerable structures in the intestines. In particular, an impairment of the barrier function of the epithelial lining cells and the sealing tight junction proteins has been noted, as this could result in an increased translocation of luminal antigens and pathogens and an excessive activation of the immune system. The current review aims to provide a summary of the available evidence regarding direct effects of various mycotoxins on the intestinal epithelial barrier. Available data, based on different cellular and animal studies, show that food-associated exposure to certain mycotoxins, especially trichothecenes and patulin, affects the intestinal barrier integrity and can result in an increased translocation of harmful stressors. It is therefore hypothesized that human exposure to certain mycotoxins, particularly deoxynivalenol, as the major trichothecene, may play an important role in etiology of various chronic intestinal inflammatory diseases, such as inflammatory bowel disease, and in the prevalence of food allergies, particularly in children.
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Affiliation(s)
- Peyman Akbari
- Division of Veterinary Pharmacology, Pharmacotherapy and Toxicology, Institute for Risk Assessment Sciences, Utrecht University, Yalelaan 104, 3584 CM, Utrecht, The Netherlands
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG, Utrecht, The Netherlands
| | - Saskia Braber
- Division of Veterinary Pharmacology, Pharmacotherapy and Toxicology, Institute for Risk Assessment Sciences, Utrecht University, Yalelaan 104, 3584 CM, Utrecht, The Netherlands.
| | - Soheil Varasteh
- Division of Veterinary Pharmacology, Pharmacotherapy and Toxicology, Institute for Risk Assessment Sciences, Utrecht University, Yalelaan 104, 3584 CM, Utrecht, The Netherlands
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG, Utrecht, The Netherlands
| | - Arash Alizadeh
- Division of Veterinary Pharmacology, Pharmacotherapy and Toxicology, Institute for Risk Assessment Sciences, Utrecht University, Yalelaan 104, 3584 CM, Utrecht, The Netherlands
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG, Utrecht, The Netherlands
| | - Johan Garssen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG, Utrecht, The Netherlands
- Nutricia Research, 3584 CT, Utrecht, The Netherlands
| | - Johanna Fink-Gremmels
- Division of Veterinary Pharmacology, Pharmacotherapy and Toxicology, Institute for Risk Assessment Sciences, Utrecht University, Yalelaan 104, 3584 CM, Utrecht, The Netherlands
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22
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Danilović B, Potić V, Stamenković S, Savić D. A review of the presence of some food contaminants on the territory of the Republic of Serbia. ACTA ACUST UNITED AC 2017. [DOI: 10.5937/savteh1702084d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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23
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Aslam N, Tipu MY, Ishaq M, Cowling A, McGill D, Warriach HM, Wynn P. Higher Levels of Aflatoxin M1 Contamination and Poorer Composition of Milk Supplied by Informal Milk Marketing Chains in Pakistan. Toxins (Basel) 2016; 8:E347. [PMID: 27929386 PMCID: PMC5198542 DOI: 10.3390/toxins8120347] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 11/16/2016] [Accepted: 11/16/2016] [Indexed: 11/16/2022] Open
Abstract
The present study was conducted to observe the seasonal variation in aflatoxin M1 and nutritional quality of milk along informal marketing chains. Milk samples (485) were collected from three different chains over a period of one year. The average concentrations of aflatoxin M1 during the autumn and monsoon seasons (2.60 and 2.59 ppb) were found to be significantly higher (standard error of the difference, SED = 0.21: p = 0.003) than in the summer (1.93 ppb). The percentage of added water in milk was significantly lower (SED = 1.54: p < 0.001) in summer (18.59%) than in the monsoon season (26.39%). There was a significantly different (SED = 2.38: p < 0.001) mean percentage of water added by farmers (6.23%), small collectors (14.97%), large collectors (27.96%) and retailers (34.52%). This was reflected in changes in milk quality along the marketing chain. There was no difference (p = 0.178) in concentration of aflatoxin M1 in milk collected from the farmers (2.12 ppb), small collectors (2.23 ppb), large collectors (2.36 ppb) and retailers (2.58 ppb). The high levels of contamination found in this study, which exceed the standards set by European Union (0.05 ppb) and USFDA (0.5 ppb), demand radical intervention by regulatory authorities and mass awareness of the consequences for consumer health and safety.
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Affiliation(s)
- Naveed Aslam
- Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga 2650, NSW, Australia.
| | - Muhammad Yasin Tipu
- Quality Operation Laboratory, University of Veterinary and Animal Sciences, Lahore 54000, Punjab, Pakistan.
| | - Muhammad Ishaq
- Agriculture Sector Linkages Program Dairy Project, University of Veterinary and Animal Sciences, Lahore 54000, Punjab, Pakistan.
| | - Ann Cowling
- Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga 2650, NSW, Australia.
| | - David McGill
- Faculty of Veterinary and Agricultural, University of Melbourne, Werribee 3030, VIC, Australia.
| | - Hassan Mahmood Warriach
- Agriculture Sector Linkages Program Dairy Project, University of Veterinary and Animal Sciences, Lahore 54000, Punjab, Pakistan.
| | - Peter Wynn
- Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga 2650, NSW, Australia.
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Langat G, Tetsuhiro M, Gonoi T, Matiru V, Bii C. Aflatoxin M1 Contamination of Milk and Its Products in Bomet County, Kenya. ACTA ACUST UNITED AC 2016. [DOI: 10.4236/aim.2016.67053] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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25
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Anfossi L, Di Nardo F, Giovannoli C, Passini C, Baggiani C. Enzyme immunoassay for monitoring aflatoxins in eggs. Food Control 2015. [DOI: 10.1016/j.foodcont.2015.04.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Giovati L, Magliani W, Ciociola T, Santinoli C, Conti S, Polonelli L. AFM₁ in Milk: Physical, Biological, and Prophylactic Methods to Mitigate Contamination. Toxins (Basel) 2015; 7:4330-49. [PMID: 26512694 PMCID: PMC4626737 DOI: 10.3390/toxins7104330] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 10/15/2015] [Accepted: 10/19/2015] [Indexed: 11/30/2022] Open
Abstract
Aflatoxins (AFs) are toxic, carcinogenic, immunosuppressive secondary metabolites produced by some Aspergillus species which colonize crops, including many dietary staple foods and feed components. AFB₁ is the prevalent and most toxic among AFs. In the liver, it is biotransformed into AFM₁, which is then excreted into the milk of lactating mammals, including dairy animals. AFM₁ has been shown to be cause of both acute and chronic toxicoses. The presence of AFM₁ in milk and dairy products represents a worldwide concern since even small amounts of this metabolite may be of importance as long-term exposure is concerned. Contamination of milk may be mitigated either directly, decreasing the AFM₁ content in contaminated milk, or indirectly, decreasing AFB₁ contamination in the feed of dairy animals. Current strategies for AFM₁ mitigation include good agricultural practices in pre-harvest and post-harvest management of feed crops (including storage) and physical or chemical decontamination of feed and milk. However, no single strategy offers a complete solution to the issue.
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Affiliation(s)
- Laura Giovati
- Department of Biomedical, Biotechnological, and Translational Sciences, Microbiology and Virology Unit, University of Parma, Parma 43125, Italy.
| | - Walter Magliani
- Department of Biomedical, Biotechnological, and Translational Sciences, Microbiology and Virology Unit, University of Parma, Parma 43125, Italy.
| | - Tecla Ciociola
- Department of Biomedical, Biotechnological, and Translational Sciences, Microbiology and Virology Unit, University of Parma, Parma 43125, Italy.
| | - Claudia Santinoli
- Department of Biomedical, Biotechnological, and Translational Sciences, Microbiology and Virology Unit, University of Parma, Parma 43125, Italy.
| | - Stefania Conti
- Department of Biomedical, Biotechnological, and Translational Sciences, Microbiology and Virology Unit, University of Parma, Parma 43125, Italy.
| | - Luciano Polonelli
- Department of Biomedical, Biotechnological, and Translational Sciences, Microbiology and Virology Unit, University of Parma, Parma 43125, Italy.
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Zhang J, Zheng N, Liu J, Li FD, Li SL, Wang JQ. Aflatoxin B1 and aflatoxin M1 induced cytotoxicity and DNA damage in differentiated and undifferentiated Caco-2 cells. Food Chem Toxicol 2015; 83:54-60. [PMID: 26051350 DOI: 10.1016/j.fct.2015.05.020] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 05/23/2015] [Accepted: 05/26/2015] [Indexed: 10/23/2022]
Abstract
Aflatoxin B1 (AFB1) and aflatoxin M1 (AFM1) are natural mycotoxins that frequently present in food and feed and pose risks to human health. There are few data in the literature regarding the impairment of them in the intestine. Therefore, the present study investigated their cytotoxic effect on Caco-2 cells, especially the differentiated ones that resemble mature small intestinal enterocytes. Both undifferentiated (UC) and differentiated (DC) cells were treated with AFB1 and AFM1 at various concentrations for up to 72 h. Cell viability, lactate dehydrogenase (LDH) release, reactive oxygen species (ROS) production and DNA damage were determined. Data showed that AFB1 and AFM1 significantly inhibited UC and DC cell growth, increased LDH and caused genetic damage in a time- and dose-dependent manner (p < 0.05). In comparison, AFB1 was found to be more toxic than AFM1 on both UC and DC. All these cytotoxic outcomes might be associated with intracellular ROS generation, leading to membrane damage and DNA strand break. Additionally, DC was found to be more sensitive to aflatoxins, which might be due to the alteration of enzymes during cell differentiation. The present study provided the first in vitro evidence of DNA damage of DC induced by AFB1 and AFM1.
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Affiliation(s)
- J Zhang
- Ministry of Agriculture Laboratory of Quality & Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China; College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, PR China; State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - N Zheng
- Ministry of Agriculture Laboratory of Quality & Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China; State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - J Liu
- China National Research Institute of Food and Fermentation Industries, Beijing 100027, PR China
| | - F D Li
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, PR China
| | - S L Li
- Ministry of Agriculture Laboratory of Quality & Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China; State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - J Q Wang
- Ministry of Agriculture Laboratory of Quality & Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China; State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
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Ismail A, Akhtar S, Levin RE, Ismail T, Riaz M, Amir M. Aflatoxin M1: Prevalence and decontamination strategies in milk and milk products. Crit Rev Microbiol 2015; 42:418-27. [PMID: 25853494 DOI: 10.3109/1040841x.2014.958051] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Aflatoxin M1 (AFM1) in milk is among the most carcinogenic compounds, relatively high levels being consumed, especially by the most vulnerable age groups, i.e. infants and the elderly. Reports on its prevalence are constantly being received from various parts of the world compelling nations to establish their own standard limits for AFM1. Global review of the literature indicates the existence of methods of partial decontamination of AFM1, however; evidence based studies do not suggest that any single strategy as a coherent and complete solution to the issue. Microbial decontamination of AFM1 has emerged as the most suitable method up to now but the stability of toxin-microbial cell complexes still remains questionable. This review discusses the chemical nature, established maximum permissible limits and prevalence of AFM1 in various countries from 2009 to 2014. Moreover, the possible mechanisms for AFM1 reduction mainly the microbial decontamination and the stability and bioaccessibility of microbial-AFM1 complexes are also discussed.
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Affiliation(s)
- Amir Ismail
- a Department of Food Science and Technology , Bahauddin Zakariya University, Food Science and Technology , Multan , Pakistan and
| | - Saeed Akhtar
- a Department of Food Science and Technology , Bahauddin Zakariya University, Food Science and Technology , Multan , Pakistan and
| | - Robert E Levin
- b Department of Food Science , University of Massachusetts Amherst , MA , USA
| | - Tariq Ismail
- a Department of Food Science and Technology , Bahauddin Zakariya University, Food Science and Technology , Multan , Pakistan and
| | - Muhammad Riaz
- a Department of Food Science and Technology , Bahauddin Zakariya University, Food Science and Technology , Multan , Pakistan and
| | - Mamoona Amir
- a Department of Food Science and Technology , Bahauddin Zakariya University, Food Science and Technology , Multan , Pakistan and
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29
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Ashiq S. Natural Occurrence of Mycotoxins in Food and Feed: Pakistan Perspective. Compr Rev Food Sci Food Saf 2014; 14:159-175. [PMID: 33401806 DOI: 10.1111/1541-4337.12122] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 10/15/2014] [Indexed: 12/18/2022]
Abstract
Fungi are commonly present in the environment and can grow under favorable conditions on an extensive variety of substrates. During harvesting, handling, storage, and distribution, agricultural commodities are subjected to infection by toxigenic molds, which may cause spoilage and produce toxic metabolites called mycotoxins. Fungal contamination of various food commodities with consequent exposure of the community to mycotoxins is a hazard that may exist depending on environmental factors, crop health, and soil conditions. Mycotoxins represent serious consequences due to substantial economic loss and risk to health. The environmental conditions of Pakistan with its mostly warm temperature are conducive to growth of toxigenic fungi resulting in mycotoxin production in different food items. Moreover, the poor conditions of storage and deficiency in regulatory measures in food quality control worsen the situation in the country. This review encompasses mycotoxin contamination of food and feed in Pakistan. High concentrations of mycotoxins are found in some commodities that are used on a daily basis in Pakistan, which may be a concern depending on dietary variety and health conditions of individuals in the population. Therefore, the mycotoxin contamination of foodstuff with exceeding levels represents a serious health hazard for the local population. There is a need to conduct more studies to analyze mycotoxin occurrence in all types of food commodities throughout the country. For consumer safety and the country's economy, the regulatory authorities should take into account this issue of contamination, and control strategies should be implemented and the quality control system of food improved.
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Affiliation(s)
- Samina Ashiq
- Ashiq is from Centre of Biotechnology & Microbiology, University of Peshawar, Pakistan
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Scaglioni P, Becker-Algeri T, Drunkler D, Badiale-Furlong E. Aflatoxin B1 and M1 in milk. Anal Chim Acta 2014; 829:68-74. [DOI: 10.1016/j.aca.2014.04.036] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 04/13/2014] [Accepted: 04/18/2014] [Indexed: 11/29/2022]
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Ben Salah-Abbès J, Abbès S, Jebali R, Haous Z, Oueslati R. Potential preventive role of lactic acid bacteria against Aflatoxin M1immunotoxicity and genotoxicity in mice. J Immunotoxicol 2014; 12:107-14. [DOI: 10.3109/1547691x.2014.904025] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tavares A, Alvito P, Loureiro S, Louro H, Silva M. Multi-mycotoxin determination in baby foods and in vitro combined cytotoxic effects of aflatoxin M1 and ochratoxin A. WORLD MYCOTOXIN J 2013. [DOI: 10.3920/wmj2013.1554] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The co-occurrence of mycotoxins in baby foods, including aflatoxin M1 (AFM1) and ochratoxin A (OTA), has been reported in previous studies, but data on their potential combined toxic effects are still missing. The present work aimed at (1) validating an in-house multi-mycotoxin high performance liquid chromatography with fluorescence detection (HPLC-FLD) method for AFM1, total aflatoxins (aflatoxin B1 (AFB1), aflatoxin B2 (AFB2), aflatoxin G1 (AFG1), aflatoxin G2 (AFG2)) and OTA in infant formulae (milk powders) and cereal baby foods (flours), and (2) assessing the combined cytotoxic effects of AFM1 and OTA in an intestine-derived cell line. The HPLC-FLD method, which included a chloroform extraction, liquid-liquid extraction, immunoaffinity column clean-up and fluorescence detection after post-column derivatisation with electrochemically generated bromine, was adequate for the analysis of baby foods and met the requirements of validation and quality control for the studied working ranges. The limits of quantification for AFM1, AFB1, AFB2, AFG1, AFG2 and OTA were 0.069, 0.032, 0.020, 0.047, 0.020 and 0.244 μg/kg, respectively. The mean recovery values were 96, 114, 112, 107, 101 and 87%, respectively. A dose-dependent cytotoxicity was observed for individual and combined AFM1 and OTA using the Caco-2 cell line, which represents a site of contact of both mycotoxins in the body, after oral exposure. Interactions between both mycotoxins were disclosed by application of the concentration addition (CA) and independent action (IA) models, revealing the predominance of an antagonistic pattern. In conclusion, this study proposes a HPLC-FLD method for multi-mycotoxin monitoring in baby foods and provides evidence for the interaction between AFM1 and OTA, and for the applicability of CA/IA models to predict the effect of mycotoxins mixtures, further contributing to the prevention of mycotoxins-associated adverse health effects.
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Affiliation(s)
- A.M. Tavares
- National Institute of Health Doutor Ricardo Jorge, IP, Food and Nutrition Department, Av. Padre Cruz, 1649-016 Lisbon, Portugal
- IP, Human Genetics Department, National Institute of Health Doutor Ricardo Jorge, Av. Padre Cruz, 1649-016 Lisbon, Portugal
| | - P. Alvito
- National Institute of Health Doutor Ricardo Jorge, IP, Food and Nutrition Department, Av. Padre Cruz, 1649-016 Lisbon, Portugal
- Faculty of Sciences, Centre for Environmental and Marine Studies, University of Lisbon, Campo Grande, 1149-016 Lisbon, Portugal
| | - S. Loureiro
- Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - H. Louro
- IP, Human Genetics Department, National Institute of Health Doutor Ricardo Jorge, Av. Padre Cruz, 1649-016 Lisbon, Portugal
| | - M.J. Silva
- IP, Human Genetics Department, National Institute of Health Doutor Ricardo Jorge, Av. Padre Cruz, 1649-016 Lisbon, Portugal
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Fernández DA, Louzao MC, Vilariño N, Espiña B, Fraga M, Vieytes MR, Román A, Poli M, Botana LM. The kinetic, mechanistic and cytomorphological effects of palytoxin in human intestinal cells (Caco-2) explain its lower-than-parenteral oral toxicity. FEBS J 2013; 280:3906-19. [DOI: 10.1111/febs.12390] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Revised: 06/10/2013] [Accepted: 06/10/2013] [Indexed: 11/28/2022]
Affiliation(s)
- Diego A. Fernández
- Departamento de Farmacología; Facultad de Veterinaria; Universidad de Santiago de Compostela; Lugo Spain
| | - M. Carmen Louzao
- Departamento de Farmacología; Facultad de Veterinaria; Universidad de Santiago de Compostela; Lugo Spain
| | - Natalia Vilariño
- Departamento de Farmacología; Facultad de Veterinaria; Universidad de Santiago de Compostela; Lugo Spain
| | - Begoña Espiña
- Departamento de Farmacología; Facultad de Veterinaria; Universidad de Santiago de Compostela; Lugo Spain
- International Iberian Nanotechnology Laboratory (INL); Braga Portugal
| | - María Fraga
- Departamento de Farmacología; Facultad de Veterinaria; Universidad de Santiago de Compostela; Lugo Spain
| | - Mercedes R. Vieytes
- Departamento de Fisiología Animal; Facultad de Veterinaria; Universidad de Santiago de Compostela; Lugo Spain
| | - Albina Román
- Unidad de Microscopía Electrónica y Confocal; Edificio CACTUS; Lugo Spain
| | - Mark Poli
- Integrated Toxicology Division; US Army Medical Research Institute of Infectious Diseases; Fort Detrick MD USA
| | - Luis M. Botana
- Departamento de Farmacología; Facultad de Veterinaria; Universidad de Santiago de Compostela; Lugo Spain
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Santini A, Raiola A, Ferrantelli V, Giangrosso G, Macaluso A, Bognanno M, Galvano F, Ritieni A. Aflatoxin M₁ in raw, UHT milk and dairy products in Sicily (Italy). FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE 2013; 6:181-6. [PMID: 24779902 DOI: 10.1080/19393210.2013.780186] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A survey on 73 milk samples from different animal breeds and 24 dairy products samples from Sicily, Italy, was carried out for the presence of aflatoxin M₁ (AFM1) by LC-fluorescence detection after immunoaffinity cleanup. AFM1 was detected in 48% and 42% of the milk and dairy samples at concentration ranges between <5.0-16.0 and <5.0-18.0 ng L⁻¹, respectively. Within the raw milk samples, 92% had an AFM1 content below 5.0 ng L⁻¹, in 7% of the cases it was in the range 5.0-10.0 ng L⁻¹ and 1% was contaminated between 10.0 and 20.0 ng L⁻¹. For the dairy products, ultra-high-temperature treated (UHT) milk, milk cream and cheese, the incidence was 42%, of which 83% contained less than 5.0 ng L⁻¹ and 17% contained 10.0-20.0 ng L⁻¹ AFM1. The levels of contamination found justify continuous monitoring for public health and to reduce consumer exposure.
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Affiliation(s)
- Antonello Santini
- a Department of Pharmacy , University of Napoli "Federico II" , Napoli , Italy
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Hwang KC, Hwang JY, Kim HW, Oh MH. Aflatoxin M1 in Pasteurized Market Milk in Korea. Korean J Food Sci Anim Resour 2012. [DOI: 10.5851/kosfa.2012.32.3.376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Caloni F, Cortinovis C, Pizzo F, De Angelis I. Transport of Aflatoxin M(1) in Human Intestinal Caco-2/TC7 Cells. Front Pharmacol 2012; 3:111. [PMID: 22701428 PMCID: PMC3372089 DOI: 10.3389/fphar.2012.00111] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Accepted: 05/22/2012] [Indexed: 12/21/2022] Open
Abstract
Aflatoxin M(1) (AFM(1)) is a hydroxylated metabolite of aflatoxin B(1) (AFB(1)). After it is formed, it is secreted in the milk of mammals. Despite the potential risk of human exposure to AFM(1), data reported in literature on the metabolism, toxicity, and bioavailability of this molecule are limited and out of date. The aim of the present research was to study the absorption profile of AFM(1) and possible damage to tight junctions (TJ) of the intestinal Caco-2/TC7 clone grown on microporous filter supports. These inserts allowed for the separation of the apical and basolateral compartments which correspond to the in vivo lumen and the interstitial space/vascular systems of intestinal mucosa respectively. In this study, the Caco-2/TC7 cells were treated with different AFM(1) concentrations (10-10,000 ng/kg) for short (40 min) and long periods of time (48 h). The AFM(1) influx/efflux transport and effects on TJ were evaluated by measuring trans-epithelial electrical resistance and observing TJ protein (Zonula occludens-1 and occludin) localization. The results showed that: (i) when introduced to the apical and basolateral compartments, AFM(1) was poorly absorbed by the Caco-2/TC7 cells but its transport across the cell monolayer occurred very quickly (P(app) value of 105.10 ± 7.98 cm/s × 10(-6)). (ii) The integrity of TJ was not permanently compromised after exposure to the mycotoxin. Viability impairment or barrier damage did not occur either. The present results contribute to the evaluation of human risk exposure to AFM(1), although the AFM(1) transport mechanism need to be clarified.
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Affiliation(s)
- Francesca Caloni
- Department of Health, Animal Science and Food Safety, Universitá degli Studi di MilanoMilan, Italy
| | - Cristina Cortinovis
- Department of Health, Animal Science and Food Safety, Universitá degli Studi di MilanoMilan, Italy
| | - Fabiola Pizzo
- Department of Health, Animal Science and Food Safety, Universitá degli Studi di MilanoMilan, Italy
| | - Isabella De Angelis
- Department of Environment and Primary Prevention, Istituto Superiore di SanitàRome, Italy
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Elkak A, El Atat O, Habib J, Abbas M. Occurrence of aflatoxin M1 in cheese processed and marketed in Lebanon. Food Control 2012. [DOI: 10.1016/j.foodcont.2011.10.033] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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38
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Aflatoxin M1 in breast milk of nursing Sudanese mothers. Mycotoxin Res 2012; 28:131-4. [DOI: 10.1007/s12550-012-0127-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Revised: 02/12/2012] [Accepted: 02/15/2012] [Indexed: 10/28/2022]
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Bastaki SA, Osman N, Kochiyil J, Shafiullah M, Padmanabhan R, Abdulrazzaq YM. Toxicokinetics of aflatoxin in pregnant mice. Int J Toxicol 2010; 29:425-31. [PMID: 20484621 DOI: 10.1177/1091581810369565] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Our objective was to study the toxicokinetics of aflatoxin (AF) in pregnant mice. Aflatoxin B1 (AFB1) was administered intraperitoneally (IP) to groups of pregnant mice in single doses of 20 mg/kg on gestation day (GD) 13 and orally at the same gestational age. Controls received (IP and oral) a proportionate volume of solvent only. Maternal blood was collected at 15, 30, 45, 60, 90, 120, and 150 minutes posttreatment. Their AFB1 contents were determined. Aflatoxin B1 concentrations following maternal exposure to AFB1 were highly correlated with time after exposure. The serum concentrations were predictable and the highest serum levels were seen immediately at 15 minutes in mice given AFs IP and at 30 minutes in those given it orally. The absorption was 5.0 microg/min and elimination was 3.0 microg/min. The toxicokinetics of AFB1 have been delineated. Aflatoxins are easily and rapidly absorbed both from the gastrointestinal tract (GI) tract and through the peritoneum.
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Affiliation(s)
- Salim A Bastaki
- Department of Paediatrics, Faculty of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
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Maresca M, Fantini J. Some food-associated mycotoxins as potential risk factors in humans predisposed to chronic intestinal inflammatory diseases. Toxicon 2010; 56:282-94. [PMID: 20466014 DOI: 10.1016/j.toxicon.2010.04.016] [Citation(s) in RCA: 139] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2010] [Revised: 03/30/2010] [Accepted: 04/25/2010] [Indexed: 12/19/2022]
Abstract
Mycotoxins are fungal metabolites able to affect the functions of numerous tissues and organs in animals and humans, including intestinal and immune systems. However, the potential link between exposure to some mycotoxins and human chronic intestinal inflammatory diseases, such as celiac and Crohn's diseases or ulcerative colitis, has not been investigated. Instead, several theories based on bacterial, immunological or neurological events have been elaborated to explain the etiology of these pathologies. Here we reviewed the literature on mycotoxin-induced intestinal dysfunctions and compared these perturbations to the impairments of intestinal functions typically observed in human chronic intestinal inflammatory diseases. Converging evidence based on various cellular and animal studies show that several mycotoxins induce intestinal alterations that are similar to those observed at the onset and during the progression of inflammatory bowel diseases. Although epidemiologic evidence is still required, existing data are sufficient to suspect a role of some food-associated mycotoxins in the induction and/or persistence of human chronic intestinal inflammatory diseases in genetically predisposed patients.
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Affiliation(s)
- Marc Maresca
- CRN2M, CNRS UMR 6231, INRA USC 2027, Laboratoire des Interactions Moléculaires et Systèmes Membranaires, Université d'Aix-Marseille 2 et Aix-Marseille 3, Faculté des Sciences de St-Jérôme, 13397 Marseille Cedex 20, France.
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Yuan Y, Dai X, Wang D, Zeng X. Purification, characterization and cytotoxicity of malanin, a novel plant toxin from the seeds of Malania oleifera. Toxicon 2009; 54:121-7. [PMID: 19341757 DOI: 10.1016/j.toxicon.2009.03.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2008] [Revised: 03/19/2009] [Accepted: 03/23/2009] [Indexed: 11/26/2022]
Abstract
Malanin, a novel plant toxin with a molecular weight of 61,875 Da and an isoelectric point of 5.5, was isolated from Malania oleifera seeds by homogenization, ammonium sulfate precipitation and hydrophobic interaction chromatography (HIC). It is a glycoprotein with two chains, chain-A and chain-B, which are crosslinked by one or more disulfide bonds. The N-terminal amino-acid sequences of malanin are DETXTDEEFN (X was commonly C) in chain-B, and DYPKLTFTTS in chain-A. Malanin exhibited highly cytotoxic activities against cancer cell lines (HeLa, PC-12, MCF-7, K562) and non-cancer cell lines (Vero and MDCK), producing IC(50) values of 0.15+/-0.08, 7.71+/-0.24, 11.20+/-0.02, 15.80+/-0.09, 2.79+/-0.05 and 3.92+/-0.01 nM, respectively. It significantly inhibited the growth of HeLa cells through cell-cycle arrest at S phase and induced an apoptotic response. LD(50) values were determined in ICR mice, which were found to be 26.22 microg/kg and 43.11 mg/kg by i.p. and i.g. respectively. Thus, malanin is amongst the most potent toxin of plant origin.
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Affiliation(s)
- Yan Yuan
- Department of Life Science and Technology, Kunming University, Kunming 650031, China.
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Caruso M, Mariotti A, Zizzadoro C, Zaghini A, Ormas P, Altafini A, Belloli C. A clonal cell line (BME-UV1) as a possible model to study bovine mammary epithelial metabolism: metabolism and cytotoxicity of aflatoxin B1. Toxicon 2009; 53:400-8. [DOI: 10.1016/j.toxicon.2008.12.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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43
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Molecular and cellular effects of food contaminants and secondary plant components and their plausible interactions at the intestinal level. Food Chem Toxicol 2008; 46:813-41. [DOI: 10.1016/j.fct.2007.12.006] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2007] [Revised: 10/25/2007] [Accepted: 12/03/2007] [Indexed: 01/16/2023]
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