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Taroncher M, Zingales V, Rodríguez-Carrasco Y, Ruiz MJ. Identification of Biotransformation Products of T-2 Toxin in HepG2 Cells Using LC-Q-TOF MS. Foods 2024; 13:1501. [PMID: 38790801 PMCID: PMC11120489 DOI: 10.3390/foods13101501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/02/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024] Open
Abstract
The T-2 toxin (T-2) is a type A trichothecene found in cereals. The formation of metabolites is a frequent cause of mycotoxin-induced toxicity. In this work, the conversion of T-2 during biotransformation reactions in HepG2 cells was evaluated. For this, HepG2 cells were exposed to 30 (IC50/2) and 60 (IC50) nM of T-2 for 0, 1, 2, 3, 6, 8 and 24 h, and the concentrations of T-2 and its metabolites HT-2, T2-triol, T2-tetraol and neosolaniol were determined in both the cell fraction and culture medium through liquid chromatography coupled to high-resolution mass spectrometry-time of flight (LC-Q-TOF MS). Results showed a fast metabolization of T-2 (>90%) during the first 2 h, with HT-2 as its main (>95%) biotransformation product. The cell fraction showed higher levels (p < 0.05) of HT-2 (39.9 ± 2.1 nM) compared to the culture medium (12.53 ± 2.4 nM). This trend was also observed for the identified metabolites. T2-triol reached its maximum concentration (1.7 ± 0.4 nM) at 2 h, and at later times a time-dependent increase in the T2-tetraol and neosolaniol concentrations was observed. The identification of T-2 metabolites shows the need to continue combined toxicity studies of mycotoxins for a correct risk characterization of these natural contaminants.
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Affiliation(s)
- Mercedes Taroncher
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy and Food Science, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain; (M.T.); (V.Z.); (M.J.R.)
- Research Group Alternative Methods for Determining Toxic Effects and Risk Assessment of Contaminants and Mixtures (RiskTox; GIUV2021-513), University of Valencia, 46100 València, Spain
| | - Veronica Zingales
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy and Food Science, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain; (M.T.); (V.Z.); (M.J.R.)
- Research Group Alternative Methods for Determining Toxic Effects and Risk Assessment of Contaminants and Mixtures (RiskTox; GIUV2021-513), University of Valencia, 46100 València, Spain
| | - Yelko Rodríguez-Carrasco
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy and Food Science, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain; (M.T.); (V.Z.); (M.J.R.)
- Research Group Alternative Methods for Determining Toxic Effects and Risk Assessment of Contaminants and Mixtures (RiskTox; GIUV2021-513), University of Valencia, 46100 València, Spain
| | - María José Ruiz
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy and Food Science, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain; (M.T.); (V.Z.); (M.J.R.)
- Research Group Alternative Methods for Determining Toxic Effects and Risk Assessment of Contaminants and Mixtures (RiskTox; GIUV2021-513), University of Valencia, 46100 València, Spain
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Chen Y, Zheng X, Zhou R, Zhang H, Liu Y, Hu X, Yin Z. Mechanism of Apoptosis in Porcine Ovarian Granulosa Cells Triggered by T-2 Toxin. Genes (Basel) 2024; 15:579. [PMID: 38790208 PMCID: PMC11120908 DOI: 10.3390/genes15050579] [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: 03/22/2024] [Revised: 04/23/2024] [Accepted: 04/28/2024] [Indexed: 05/26/2024] Open
Abstract
T-2 toxin (T-2), an A-type mono mycotoxin produced by various Fusarium species, disrupts DNA/RNA and protein synthesis upon entering the body, resulting in pathological conditions in various tissues/organs and posing a significant threat to human and animal health. However, the mechanisms underlying its toxicity remain unclear. With the goal of learning how T-2 affects reproduction in animals, we utilized primary porcine ovarian granulosa cells (pGCs) as a carrier in vitro and constructed concentration models for analyzing cell morphology and RNA-sequencing (RNA-seq). Our findings showed that T-2 could influence pGCs morphology, induce cell cycle arrest, and promote apoptosis in a dose-dependent manner. The results of RNA-seq analyses indicated that a total of 8216 genes exhibited significant differential expression (DEG) following T-2 treatment, of which 4812 were observed to be down-regulated and 3404 were up-regulated. The DEGs following T-2 toxin treatment of pGCs had a notable impact on many metabolic pathways such as PI3K-Akt, Ras, MAPK, and apoptosis, which in turn altered important physiological processes. Gene set enrichment analysis (GSEA) indicated that the differences in the harmful effects of T-2 might be caused by the varying control of cellular processes and the pathway responsible for steroid metabolism. These results present further insights regarding the mechanism of T-2 action on sow reproductive toxicity, enhance our understanding of T-2 reproductive toxicological effects, and lay a theoretical foundation for the judicious prevention of T-2-induced reproductive toxicity.
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Affiliation(s)
| | | | | | | | | | | | - Zongjun Yin
- Anhui Provincial Laboratory of Local Animal Genetic Resource Conservation and Bio-Breeding, College of Animal Science and Technology, Anhui Agricultural University, No. 130, West Changjiang Road, Hefei 230036, China; (Y.C.); (X.Z.); (R.Z.); (H.Z.); (Y.L.); (X.H.)
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3
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Zhang Y, He B, Wang Y, Wang J, Liang Y, Jin H, Wei M, Ren W, Suo Z, Xu Y. Mn 2+-Triggered Swing-Arm Robot Strategy Using Anemone-Like Thi@AuPd@Cu-MOFs as Signaling Probes for the Detection of T-2 Toxin. Anal Chem 2024; 96:92-101. [PMID: 38110328 DOI: 10.1021/acs.analchem.3c03194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
Herein, we synthesized anemone-like copper-based metal-organic frameworks (MOFs) loaded with gold-palladium nanoparticles (AuPd@Cu-MOFs) and polyethylenimine-reduced graphene oxide/gold-silver nanosheet composites (PEI-rGO/AuAg NSs) for the first time to construct the sensor and to detect T-2 toxin (T-2) using triple helix molecular switch (THMS) and signal amplification by swing-arm robot. The aptasensor used PEI-rGO/hexagonal AuAg NSs as the electrode modification materials and anemone-like AuPd@Cu-MOFs as the signal materials. The prepared PEI-rGO/hexagonal AuAg NSs had a large specific surface area, excellent electrical conductivity, and good stability, which successfully improved the electrochemical performance of the sensors. The AuPd@Cu-MOFs with high porosity provided a great deal of attachment sites for the signaling molecule thionine (Thi), thereby increasing the signal response. The aptasensor developed in this study demonstrated a remarkable detection limit of 0.054 fg mL-1 under optimized conditions. Furthermore, the successful detection of T-2 in real samples was achieved using the fabricated sensor. The simplicity of the THMS-based method, which entails modifying the aptamer sequence, allows for easy adaptation to different target analytes. Thus, the sensor holds immense potential for applications in quality supervision and food safety.
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Affiliation(s)
- Yidan Zhang
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Baoshan He
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Yuling Wang
- School of Natural Sciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Jinshui Wang
- College of Biological Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Ying Liang
- College of Biological Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Huali Jin
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Min Wei
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Wenjie Ren
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Zhiguang Suo
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Yiwei Xu
- School of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
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He W, Wang J, Han M, Wang L, Li L, Zhang J, Chen S, Guo J, Zhai X, Yang J. Potential Toxicity and Mechanisms of T-2 and HT-2 Individually or in Combination on the Intestinal Barrier Function of Porcine Small Intestinal Epithelial Cells. Toxins (Basel) 2023; 15:682. [PMID: 38133186 PMCID: PMC10748202 DOI: 10.3390/toxins15120682] [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: 10/23/2023] [Revised: 11/21/2023] [Accepted: 11/28/2023] [Indexed: 12/23/2023] Open
Abstract
Under natural conditions, T-2 toxin can be easily metabolized to HT-2 toxin by deacetylation, and T-2 and HT-2 are usually co-contaminated in grain and feed at a high detected rate. Our previous information indicated that T-2 toxin could injure the function of the intestinal barrier, but the combined toxicity and mechanism of T-2 and HT-2 on the intestinal cells of porcines are still unknown. Therefore, we aimed to explore T-2 and HT-2 individually and combined on cellular viability, cell membrane integrity, the expression of tight junction-related proteins, and the generation of inflammatory factors in porcine intestinal epithelial cells (IPEC-J2). The results showed that T-2 and HT-2, individually or in combination, could induce a decrease in cell viability, an increase in LDH release and IL-1, IL-6, and TNF-α generation, and a decrease in the anti-inflammatory factor IL-10. Based on the analysis of immunofluorescence staining, real-time PCR, and western blotting, the tight junction protein expressions of Claudin-1, Occludin, and ZO-1 were significantly decreased in the T-2 and HT-2 individual or combination treated groups compared with the control. Furthermore, all the parameter changes in the T-2 + HT-2 combination group were much more serious than those in the individual dose groups. These results suggest that T-2 and HT-2, individually and in combination, could induce an intestinal function injury related to an inflammatory response and damage to the intestinal barrier function in porcine intestinal epithelial cells. Additionally, T-2 and HT-2 in combination showed a synergistic toxic effect, which will provide a theoretical basis to assess the risk of T-2 + HT-2 co-contamination in porcine feed.
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Affiliation(s)
- Weihua He
- Institute of Pet Science and Technology, Jiangsu Agri-Animal Husbandry Vocational College, Taizhou 225300, China; (W.H.); (L.W.); (L.L.); (J.Z.); (S.C.); (J.G.)
| | - Jianhua Wang
- Institute for Agri-Food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; (J.W.); (M.H.)
| | - Mengyi Han
- Institute for Agri-Food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; (J.W.); (M.H.)
| | - Lihua Wang
- Institute of Pet Science and Technology, Jiangsu Agri-Animal Husbandry Vocational College, Taizhou 225300, China; (W.H.); (L.W.); (L.L.); (J.Z.); (S.C.); (J.G.)
| | - Ling Li
- Institute of Pet Science and Technology, Jiangsu Agri-Animal Husbandry Vocational College, Taizhou 225300, China; (W.H.); (L.W.); (L.L.); (J.Z.); (S.C.); (J.G.)
| | - Jiahui Zhang
- Institute of Pet Science and Technology, Jiangsu Agri-Animal Husbandry Vocational College, Taizhou 225300, China; (W.H.); (L.W.); (L.L.); (J.Z.); (S.C.); (J.G.)
| | - Siqi Chen
- Institute of Pet Science and Technology, Jiangsu Agri-Animal Husbandry Vocational College, Taizhou 225300, China; (W.H.); (L.W.); (L.L.); (J.Z.); (S.C.); (J.G.)
| | - Jiayi Guo
- Institute of Pet Science and Technology, Jiangsu Agri-Animal Husbandry Vocational College, Taizhou 225300, China; (W.H.); (L.W.); (L.L.); (J.Z.); (S.C.); (J.G.)
| | - Xiaohu Zhai
- Institute of Pet Science and Technology, Jiangsu Agri-Animal Husbandry Vocational College, Taizhou 225300, China; (W.H.); (L.W.); (L.L.); (J.Z.); (S.C.); (J.G.)
| | - Junhua Yang
- Institute for Agri-Food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; (J.W.); (M.H.)
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Lee WY, Park HJ. T-2 mycotoxin Induces male germ cell apoptosis by ROS-mediated JNK/p38 MAPK pathway. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 262:115323. [PMID: 37541021 DOI: 10.1016/j.ecoenv.2023.115323] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/30/2023] [Accepted: 07/31/2023] [Indexed: 08/06/2023]
Abstract
T-2 mycotoxin, a type A trichothecene toxin that, specifically, causes male and female reproductive toxicity. We evaluated T-2 toxin toxicity in testes from neonatal testes after in vitro tissue cultured. Additionally, current study focuses on the molecular mechanism of toxicity and germ cell damage in GC-1 spermatogonial cells. Mouse testicular fragments were subjected to T-2 toxin (0-20 nM) during days 5 of in vitro culture. Testicular germ cell number were reduced and downregulated the expression of corresponding markers depending on the exposure concentration of T-2 toxin; however, Sertoli cell markers and steroidogenic enzyme expression increased when treated with 20 nM T-2 toxin. The cell viability decreased, apoptosis increased, and pro-apoptotic protein expression increased in 5-20 nM T-2 toxin-exposed spermatogonia. Moreover, T-2 toxin generated reactive oxygen species (ROS) and induced mitochondrial dysfunction, indicating that activation of p38 MAPK signaling triggered by ROS is involved in the apoptotic molecular mechanism of T-2 toxin. T-2 toxin induced the phosphorylation of ERK1/2, c-Jun, JNK/SAPK, p38, and p53, and the subsequent inhibition of AKT phosphorylation. The upregulation of genes related to apoptosis and MAPK/JNK signaling was consistently observed in cells exposed to T-2 toxin. These results indicate that T-2 toxin triggers apoptotic cell death in germ cells through the triggering of ROS-mediated JNK/p38-MAPK signaling pathways.
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Affiliation(s)
- Won-Young Lee
- Department of Livestock, Korea National University of Agriculture and Fisheries, Jeonbuk 54874, South Korea
| | - Hyun-Jung Park
- Department of Animal Biotechnology, College of Life Science, Sangji University, Wonju-si 26339, South Korea.
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Yang X, Song W, Zhang K, Wang Y, Chen F, Chen Y, Huang T, Jiang Y, Wang X, Zhang C. p38 mediates T-2 toxin-induced Leydig cell testosterone synthesis disorder. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 253:114695. [PMID: 36857919 DOI: 10.1016/j.ecoenv.2023.114695] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/11/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
T-2 toxin is an unavoidable food and feed contaminant that seriously threatens human and animal health. Exposure to T-2 toxin can cause testosterone synthesis disorder in male animals, but the molecular mechanism is still not completely clear. The MAPK pathway participates in the regulation of testosterone synthesis by Leydig cells, but it is unclear whether the MAPK pathway participates in T-2 toxin-induced testosterone synthesis disorders. In this research, testosterone synthesis capacity, testosterone synthase expression and MAPK pathway activation were examined in male mice and TM3 cells exposed to T-2 toxin. The results showed that T-2 toxin exposure decreased testicular volume and caused pathological changes in the microstructure and ultrastructure of testicular Leydig cells. T-2 toxin exposure also decreased testicular testosterone content and the protein expression of testosterone synthase. In vitro, T-2 toxin inhibited cell viability and decreased the expression of testosterone synthase in TM3 cells, and it decreased the testosterone contents in cell culture supernatants. Moreover, T-2 toxin activated the MAPK pathway by increasing the expression of p38, JNK and ERK as well as the expression of p-p38, p-JNK and p-ERK in testis and TM3 cells. The p38 molecular inhibitor (SB203580) significantly alleviated the T-2 toxin-induced decrease in testosterone synthase expression in TM3 cells and the T-2 toxin-induced reduction in testosterone content in TM3 cell culture supernatants. In summary, p38 mediates T-2 toxin-induced Leydig cell testosterone synthesis disorder.
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Affiliation(s)
- Xu Yang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan, China
| | - Wenxi Song
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan, China
| | - Kefei Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan, China
| | - Youshuang Wang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan, China
| | - Fengjuan Chen
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan, China
| | - Yunhe Chen
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan, China
| | - Tingyu Huang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan, China
| | - Yibao Jiang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, Henan, China
| | - Xuebing Wang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan, China
| | - Cong Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan, China; International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China.
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Bryła M, Pierzgalski A, Zapaśnik A, Uwineza PA, Ksieniewicz-Woźniak E, Modrzewska M, Waśkiewicz A. Recent Research on Fusarium Mycotoxins in Maize—A Review. Foods 2022; 11:foods11213465. [PMID: 36360078 PMCID: PMC9659149 DOI: 10.3390/foods11213465] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 11/06/2022] Open
Abstract
Maize (Zea mays L.) is one of the most susceptible crops to pathogenic fungal infections, and in particular to the Fusarium species. Secondary metabolites of Fusarium spp.—mycotoxins are not only phytotoxic, but also harmful to humans and animals. They can cause acute or chronic diseases with various toxic effects. The European Union member states apply standards and legal regulations on the permissible levels of mycotoxins in food and feed. This review summarises the most recent knowledge on the occurrence of toxic secondary metabolites of Fusarium in maize, taking into account modified forms of mycotoxins, the progress in research related to the health effects of consuming food or feed contaminated with mycotoxins, and also the development of biological methods for limiting and/or eliminating the presence of the same in the food chain and in compound feed.
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Affiliation(s)
- Marcin Bryła
- Department of Food Safety and Chemical Analysis, Waclaw Dabrowski Institute of Agricultural and Food Biotechnology—State Research Institute, 02-532 Warsaw, Poland
| | - Adam Pierzgalski
- Department of Food Safety and Chemical Analysis, Waclaw Dabrowski Institute of Agricultural and Food Biotechnology—State Research Institute, 02-532 Warsaw, Poland
| | - Agnieszka Zapaśnik
- Department of Microbiology, Waclaw Dabrowski Institute of Agricultural and Food Biotechnology—State Research Institute, Rakowiecka 36, 02-532 Warsaw, Poland
| | - Pascaline Aimee Uwineza
- Department of Chemistry, Poznań University of Life Sciences, Wojska Polskiego 75, 60-625 Poznań, Poland
| | - Edyta Ksieniewicz-Woźniak
- Department of Food Safety and Chemical Analysis, Waclaw Dabrowski Institute of Agricultural and Food Biotechnology—State Research Institute, 02-532 Warsaw, Poland
| | - Marta Modrzewska
- Department of Food Safety and Chemical Analysis, Waclaw Dabrowski Institute of Agricultural and Food Biotechnology—State Research Institute, 02-532 Warsaw, Poland
| | - Agnieszka Waśkiewicz
- Department of Chemistry, Poznań University of Life Sciences, Wojska Polskiego 75, 60-625 Poznań, Poland
- Correspondence: ; Tel.: +48-61-848-78-41
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Karsauliya K, Yahavi C, Pandey A, Bhateria M, Sonker AK, Pandey H, Sharma M, Singh SP. Co-occurrence of mycotoxins: A review on bioanalytical methods for simultaneous analysis in human biological samples, mixture toxicity and risk assessment strategies. Toxicon 2022; 218:25-39. [PMID: 36049662 DOI: 10.1016/j.toxicon.2022.08.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 10/15/2022]
Abstract
Mycotoxins are the toxic chemical substances that are produced by various fungal species and some of these are harmful to humans. Mycotoxins are ubiquitous in nature and humans could be exposed to multiple mycotoxins simultaneously. Unfortunately, exposure to mixed mycotoxins is not very well studied. Various studies have demonstrated the capacity of mycotoxins to show synergistic effect in the presence of other mycotoxins, thus, increasing the risk of toxicity. Hence, it is important to monitor mixed mycotoxins in human biological samples which would serve as a crucial information for risk assessment. Through this review paper, we aim to summarize the mixture toxicity of mycotoxins and the various bio-analytical techniques that are being used for the simultaneous analysis of mixed mycotoxins in human biological samples. Different sample preparation and clean-up techniques employed till date for eliminating the interferences from human biological samples without affecting the analyses of the mycotoxins are also discussed. Further, a brief introduction of risk assessment strategies that have been or could be adopted for multiple mycotoxin risk assessments is also mentioned. To the best of our knowledge, this is the first review that focuses solely on the occurrence of multiple mycotoxins in human biological samples as well as their risk assessment strategies.
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Affiliation(s)
- Kajal Karsauliya
- Toxicokinetics Laboratory/Analytical Chemistry Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India; Department of Pharmacy, Banasthali Vidyapith, Banasthali, Rajasthan, 304022, India
| | - C Yahavi
- Toxicokinetics Laboratory/Analytical Chemistry Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Anushka Pandey
- Toxicokinetics Laboratory/Analytical Chemistry Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India
| | - Manisha Bhateria
- Toxicokinetics Laboratory/Analytical Chemistry Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India
| | - Ashish Kumar Sonker
- Toxicokinetics Laboratory/Analytical Chemistry Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Harshita Pandey
- Toxicokinetics Laboratory/Analytical Chemistry Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India
| | - Manu Sharma
- Department of Pharmacy, Banasthali Vidyapith, Banasthali, Rajasthan, 304022, India
| | - Sheelendra Pratap Singh
- Toxicokinetics Laboratory/Analytical Chemistry Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India.
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Zhang J, Liu X, Su Y, Li T. An update on T2-toxins: metabolism, immunotoxicity mechanism and human assessment exposure of intestinal microbiota. Heliyon 2022; 8:e10012. [PMID: 35928103 PMCID: PMC9344027 DOI: 10.1016/j.heliyon.2022.e10012] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/26/2022] [Accepted: 07/15/2022] [Indexed: 11/28/2022] Open
Abstract
Mycotoxins are naturally produced secondary metabolites or low molecular organic compounds produced by fungus with high diversification, which cause mycotoxicosis (food contamination) in humans and animals. T-2 toxin is simply one of the metabolites belonging to fungi trichothecene mycotoxin. Specifically, Trichothecenes-2 (T-2) mycotoxin of genus fusarium is considered one of the most hotspot agricultural commodities and carcinogenic compounds worldwide. There are well-known examples of salmonellosis in mice and pigs, necrotic enteritis in chickens, catfish enteric septicemia and colibacillosis in pigs as T-2 toxic agent. On the other hand, it has shown a significant reduction in the Salmonella population's aptitude in the pig intestinal tract. Although the impact of the excess Fusarium contaminants on humans in creating infectious illness is less well-known, some toxins are harmful; for example, salmonellosis and colibacillosis have been frequently observed in humans. More than 20 different metabolites are synthesized and excreted after ingestion, but the T-2 toxin is one of the most protuberant metabolites. Less absorption of mycotoxins in intestinal tract results in biotransformation of toxic metabolites into less toxic variants. In addition to these, effects of microbiota on harmful mycotoxins are not limited to intestinal tract, it may harm the other human vital organs. However, detoxification of microbiota is considered as an alternative way to decontaminate the feed for both animals and humans. These transformations of toxic metabolites depend upon the formation of metabolites. This study is complete in all perspectives regarding interactions between microbiota and mycotoxins, their mechanism and practical applications based on experimental studies.
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Dai C, Das Gupta S, Wang Z, Jiang H, Velkov T, Shen J. T-2 toxin and its cardiotoxicity: New insights on the molecular mechanisms and therapeutic implications. Food Chem Toxicol 2022; 167:113262. [PMID: 35792220 DOI: 10.1016/j.fct.2022.113262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/15/2022] [Accepted: 06/24/2022] [Indexed: 10/17/2022]
Abstract
T-2 toxin is one of the most toxic and common trichothecene mycotoxins, and can cause various cardiovascular diseases. In this review, we summarized the current knowledge-base and challenges as it relates to T-2 toxin related cardiotoxicity. The molecular mechanisms and potential treatment approaches were also discussed. Pathologically, T-2 toxin-induced cardiac toxicity is characterized by cell injury and death in cardiomyocyte, increased capillary permeability, necrosis of cardiomyocyte, hemorrhage, and the infiltration of inflammatory cells in the heart. T-2 toxin exposure can cause cardiac fibrosis and finally lead to cardiac dysfunction. Mechanistically, T-2 toxin exposure-induced cardiac damage involves the production of ROS, mitochondrial dysfunction, peroxisome proliferator-activated receptor-gamma (PPAR-γ) signaling pathway, endoplasmic reticulum (ER stress), transforming growth factor beta 1 (TGF-β1)/smad family member 2/3 (Smad2/3) signaling pathway, and autophagy and inflammatory responses. Antioxidant supplementation (e.g., catalase, vitamin C, and selenium), induction of autophagy (e.g., rapamycin), blockade of inflammatory signaling (e.g., methylprednisolone) or treatment with PPAR-γ agonists (e.g., pioglitazone) may provide protective effects against these detrimental cardiac effects caused by T-2 toxin. We believe that our review provides new insights in understanding T-2 toxin exposure-induced cardiotoxicity and fuels effective prevention and treatment strategies against this important food-borne toxin-induced health problems.
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Affiliation(s)
- Chongshan Dai
- College of Veterinary Medicine, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China; Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing, 100193, PR China.
| | - Subhajit Das Gupta
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, 75230, USA
| | - Zhanhui Wang
- College of Veterinary Medicine, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China; Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing, 100193, PR China
| | - Haiyang Jiang
- College of Veterinary Medicine, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China; Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing, 100193, PR China
| | - Tony Velkov
- Department of Pharmacology & Therapeutics, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Jianzhong Shen
- College of Veterinary Medicine, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China; Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing, 100193, PR China
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11
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Li J, Wang Y, Deng Y, Wang X, Wu W, Nepovimova E, Wu Q, Kuca K. Toxic mechanisms of the trichothecenes T-2 toxin and deoxynivalenol on protein synthesis. Food Chem Toxicol 2022; 164:113044. [PMID: 35452771 DOI: 10.1016/j.fct.2022.113044] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 04/02/2022] [Accepted: 04/14/2022] [Indexed: 11/19/2022]
Abstract
The toxic mechanisms of trichothecenes, including T-2 toxin and deoxynivalenol (DON), are closely related with their effects on protein synthesis. Increasing lines of evidence show that T-2 toxin can reduce the levels of tight junction proteins, and nuclear factor erythroid 2-related factor 2 (Nrf2) by disrupting cellular barriers and the cyclic adenosine monophosphate (cAMP)-protein kinase A (PKA) and Nrf2/heme oxygenase (HO)-1 pathways. Moreover, it can inhibit aggrecan synthesis, thus causing Kashin-Beck disease. Regarding type B trichothecene, DON inhibits activation marker and β-catenin synthesis by acting on immune cells and the wingless/integrated (Wnt) pathway; it also inhibits cell proliferation and immune surveillance. In addition, DON has been shown to destroy tight junctions, glucose transport, and tumor endothelial marker 8, thus disturbing intestinal function and changing cell migration. This review summarizes the inhibitory effects of the trichothecenes T-2 toxin and DON on different protein synthesis, while discussing their underlying mechanisms. Focus is given to the effects of these toxins on tight junctions, aggrecan, activation markers, and hormones including testosterone under the influence of steroidogenic enzymes. This review can extend the current understanding of the effects of trichothecenes on protein synthesis and help to further understand their toxic mechanisms.
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Affiliation(s)
- Jiefeng Li
- College of Life Science, Yangtze University, Jingzhou, 434025, China
| | - Yating Wang
- College of Life Science, Yangtze University, Jingzhou, 434025, China
| | - Ying Deng
- College of Life Science, Yangtze University, Jingzhou, 434025, China
| | - Xu Wang
- National Reference Laboratory of Veterinary Drug Residues and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University (HZAU), Wuhan, Hubei, 430070, China
| | - Wenda Wu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; Department of Chemistry, Faculty of Science, University of Hradec Králové, 50003, Hradec Králové, Czech Republic
| | - Eugenie Nepovimova
- Department of Chemistry, Faculty of Science, University of Hradec Králové, 50003, Hradec Králové, Czech Republic
| | - Qinghua Wu
- College of Life Science, Yangtze University, Jingzhou, 434025, China; Department of Chemistry, Faculty of Science, University of Hradec Králové, 50003, Hradec Králové, Czech Republic.
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Králové, 50003, Hradec Králové, Czech Republic; Biomedical Research Center, University Hospital Hradec Kralove, 500 05, Hradec Kralove, Czech Republic.
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12
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Cytotoxicity of Mycotoxins and Their Combinations on Different Cell Lines: A Review. Toxins (Basel) 2022; 14:toxins14040244. [PMID: 35448853 PMCID: PMC9031280 DOI: 10.3390/toxins14040244] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/22/2022] [Accepted: 03/28/2022] [Indexed: 12/11/2022] Open
Abstract
Mycotoxins are secondary metabolites of molds and mainly produced by species of the genera Aspergillus, Penicillium and Fusarium. They can be synthesized on the field, during harvest as well as during storage. They are fairly stable compounds and difficult to remove. Among several hundreds of mycotoxins, according to the WHO, ochratoxin A, aflatoxins, zearalenone, deoxynivalenol, patulin, fumonisins as well as T-2 and HT-2 toxins deserve special attention. Cytotoxicity is one of the most important adverse properties of mycotoxins and is generally assessed via the MTT assay, the neutral red assay, the LDH assay, the CCK-8 assay and the ATP test in different cell lines. The apoptotic cell ratio is mainly assessed via flow cytometry. Aside from the assessment of the toxicity of individual mycotoxins, it is important to determine the cytotoxicity of mycotoxin combinations. Such combinations often exhibit stronger cytotoxicity than individual mycotoxins. The cytotoxicity of different mycotoxins often depends on the cell line used in the experiment and is frequently time- and dose-dependent. A major drawback of assessing mycotoxin cytotoxicity in cell lines is the lack of interaction typical for complex organisms (for example, immune responses).
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13
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Potential Role of Individual and Combined Effects of T-2 Toxin, HT-2 Toxin and Neosolaniol on the Apoptosis of Porcine Leydig Cells. Toxins (Basel) 2022; 14:toxins14020145. [PMID: 35202172 PMCID: PMC8876060 DOI: 10.3390/toxins14020145] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/02/2022] [Accepted: 02/09/2022] [Indexed: 02/04/2023] Open
Abstract
T-2 toxin usually co-occurs with HT-2 toxin and neosolaniol (NEO) in the grains and feed. Our previous studies found that T-2 toxin and its metabolites’ binary or ternary combination exposure to porcine Leydig cells (LCs) displayed synergism in certain range of dosage and cannot be predicted based on individual toxicity. However, the possible mechanism of these mycotoxins’ combined exposure to cell lesions remains unknown. Based on 50% cell viability, the mechanism of apoptosis in porcine Leydig cells was investigated after exposure to T-2, HT-2, NEO individual and binary or ternary combinations. Compared with control, the adenosine triphosphate (ATP) content decreased, reactive oxygen species (ROS) level increased, and mitochondrial membrane potential (MMP) decreased in all treated groups. Additionally, the cell apoptosis rates were significantly increased in test groups (p < 0.05), and the B-cell lymphoma 2 (Bcl-2) Associated X (Bax)/Bcl-2 ratio and the expression of caspase 3, caspase 8, cytochrome c (Cytc) in the treated group are all significantly higher than the control group. Moreover, the expression of Cytc and caspase 8 gene in NEO and T-2+NEO groups was significantly higher than that in other individual and combined groups. It can be concluded that the toxicities of T-2, HT-2, and NEO individually and in combination can induce apoptosis related to the oxidative stress and mitochondrial damage, and the synergistic effect between toxins may be greater than a single toxin effect, which is beneficial for assessing the possible risk of the co-occurrences in foodstuffs to human and animal health.
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14
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Liu X, Wang Z, Wang X, Yan X, He Q, Liu S, Ye M, Li X, Yuan Z, Wu J, Yi J, Wen L, Li R. Involvement of endoplasmic reticulum stress-activated PERK-eIF2α-ATF4 signaling pathway in T-2 toxin-induced apoptosis of porcine renal epithelial cells. Toxicol Appl Pharmacol 2021; 432:115753. [PMID: 34637808 DOI: 10.1016/j.taap.2021.115753] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 09/28/2021] [Accepted: 10/05/2021] [Indexed: 12/13/2022]
Abstract
T-2 toxin is a highly toxic trichothecene that can induce toxic effects in a variety of organs and tissues, but the pathogenesis of its nephrotoxicity has not been elucidated. In this study, we assessed the involvement of protein kinase RNA-like ER kinase (PERK)-mediated endoplasmic reticulum (ER) stress and apoptosis in PK-15 cells cultured at different concentrations of T-2 toxin. Cell viability, antioxidant capacity, intracellular calcium (Ca2+) content, apoptotic rate, levels of ER stress, and apoptosis-related proteins were studied. T-2 toxin inhibited cell proliferation; increased the apoptosis rate; and was accompanied by increased cleaved caspase-3 expression, altered intracellular oxidative stress marker levels, and intracellular Ca2+ overloading. The ER stress inhibitor 4-phenylbutyrate (4-PBA) and PERK selective inhibitor GSK2606414 prevented the decrease of cell activity and apoptosis caused by T-2 toxin. The altered expression of glucose regulatory protein 78 (GRP78), C/EBP homologous protein (CHOP), and caspase-12 proved that ER stress was involved in cell injury triggered by T-2 toxin. T-2 toxin activated the phosphorylation of PERK and the alpha subunit of eukaryotic initiation factor 2 (eIF2α) and upregulated the activating transcription factor 4 (ATF4), thereby triggering ER stress via the GRP78/PERK/CHOP signaling pathway. This study provides a new perspective for understanding the nephrotoxicity of T-2 toxin.
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Affiliation(s)
- Xiangyan Liu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, PR China
| | - Ze Wang
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, PR China
| | - Xianglin Wang
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, PR China
| | - Xiaona Yan
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, PR China
| | - Qing He
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, PR China
| | - Sha Liu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, PR China
| | - Mengke Ye
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, PR China
| | - Xiaowen Li
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, PR China
| | - Zhihang Yuan
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, PR China; Hunan Engineering Research Center of Livestock and Poultry Health Care, Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha City, 410128, China; Hunan Co-innovation Center of Animal Production Safety, Changsha City 410128, China
| | - Jing Wu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, PR China; Hunan Engineering Research Center of Livestock and Poultry Health Care, Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha City, 410128, China; Hunan Co-innovation Center of Animal Production Safety, Changsha City 410128, China
| | - Jine Yi
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, PR China; Hunan Engineering Research Center of Livestock and Poultry Health Care, Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha City, 410128, China; Hunan Co-innovation Center of Animal Production Safety, Changsha City 410128, China
| | - Lixin Wen
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, PR China; Hunan Engineering Research Center of Livestock and Poultry Health Care, Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha City, 410128, China; Hunan Co-innovation Center of Animal Production Safety, Changsha City 410128, China
| | - Rongfang Li
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, PR China; Hunan Engineering Research Center of Livestock and Poultry Health Care, Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha City, 410128, China; Hunan Co-innovation Center of Animal Production Safety, Changsha City 410128, China.
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15
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Pierzgalski A, Bryła M, Kanabus J, Modrzewska M, Podolska G. Updated Review of the Toxicity of Selected Fusarium Toxins and Their Modified Forms. Toxins (Basel) 2021; 13:768. [PMID: 34822552 PMCID: PMC8619142 DOI: 10.3390/toxins13110768] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 10/25/2021] [Accepted: 10/27/2021] [Indexed: 12/20/2022] Open
Abstract
Mycotoxins are one of the most dangerous food and feed contaminants, hence they have significant influence on human and animal health. This study reviews the information reported over the last few years on the toxic effects of the most relevant and studied Fusarium toxins and their modified forms. Deoxynivalenol (DON) and its metabolites can induce intracellular oxidative stress, resulting in DNA damage. Recent studies have also revealed the capability of DON and its metabolites to disturb the cell cycle and alter amino acid expression. Several studies have attempted to explore the mechanism of action of T-2 and HT-2 toxins in anorexia induction. Among other findings, two neurotransmitters associated with this process have been identified, namely substance P and serotonin (5-hydroxytryptamine). For zearalenone (ZEN) and its metabolites, the literature points out that, in addition to their generally acknowledged estrogenic and oxidative potentials, they can also modify DNA by altering methylation patterns and histone acetylation. The ability of the compounds to induce alterations in the expression of major metabolic genes suggests that these compounds can contribute to the development of numerous metabolic diseases, including type 2 diabetes.
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Affiliation(s)
- Adam Pierzgalski
- Department of Food Safety and Chemical Analysis, Prof. Waclaw Dabrowski Institute of Agricultural and Food Biotechnology-State Research Institute, Rakowiecka 36, 02-532 Warsaw, Poland; (M.B.); (J.K.); (M.M.)
| | - Marcin Bryła
- Department of Food Safety and Chemical Analysis, Prof. Waclaw Dabrowski Institute of Agricultural and Food Biotechnology-State Research Institute, Rakowiecka 36, 02-532 Warsaw, Poland; (M.B.); (J.K.); (M.M.)
| | - Joanna Kanabus
- Department of Food Safety and Chemical Analysis, Prof. Waclaw Dabrowski Institute of Agricultural and Food Biotechnology-State Research Institute, Rakowiecka 36, 02-532 Warsaw, Poland; (M.B.); (J.K.); (M.M.)
| | - Marta Modrzewska
- Department of Food Safety and Chemical Analysis, Prof. Waclaw Dabrowski Institute of Agricultural and Food Biotechnology-State Research Institute, Rakowiecka 36, 02-532 Warsaw, Poland; (M.B.); (J.K.); (M.M.)
| | - Grażyna Podolska
- Department of Cereal Crop Production, Institute of Soil Science and Plant Cultivation–State Research Institute, Czartoryskich 8, 24-100 Puławy, Poland;
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16
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Sun S, Zhao Z, Rao Q, Li X, Ruan Z, Yang J. BDE-47 induces nephrotoxicity through ROS-dependent pathways of mitochondrial dynamics in PK15 cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 222:112549. [PMID: 34325200 DOI: 10.1016/j.ecoenv.2021.112549] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/19/2021] [Accepted: 07/21/2021] [Indexed: 06/13/2023]
Abstract
2,2',4,4'-tetrabromodiphenyl ether (BDE-47)-induced nephrotoxicity is closely associated with oxidative stresses and mitochondrial abnormalities. Mitochondrial fusion and fission dynamics are crucial for maintaining mitochondrial and cellular physiological homeostasis. However, the detailed mechanisms through which BDE-47 disrupts this dynamic and contributes to renal injuries are still not fully understood. The porcine kidney-15 (PK15) cell line, a well-defined in vitro animal renal toxicological model, was exposed to BDE-47 with concentrations of 12.5, 25, 50, and 100 μM, respectively. Cell viability, the levels of reactive oxygen species (ROS) and adenosine triphosphate (ATP), the mitochondrial membrane potential (MMP), and the expression levels of key mitochondrial fusion and fission proteins were assessed. BDE-47 reduced cell viability and disrupted mitochondrial dynamics by inhibiting mitochondrial fusion and fission simultaneously, leading to MMP decreases, ROS overgeneration, ATP depletion, and cellular disintegration in a dose-dependent manner. Additionally, the mitochondrial division inhibitor (Mdivi-1) with the concentration of 20 μM observed to restore the downregulation of mitochondrial fusion and fission proteins, alleviate damages in mitochondrial morphology and functionality, correct ROS overproduction, and enable cell survival. The antioxidant N-acety-L-cysteine (NAC) with the concentration of 1 mM also simultaneously reversed the imbalance of mitochondrial dynamics, decreased ROS production, and restored mitochondrial morphology in PK15 cells exposed to BDE-47. Our data provide new insights indicating that BDE-47 disrupts mitochondrial fusion/fission dynamics to induce mitochondrial abnormalities, triggering oxidative stresses and thus contributing to PK15 cell dysfunction. ROS-dependent pathways in mitochondrial dynamics may provide a new avenue for developing effective strategies to protect cells against BDE-47-induced nephrotoxicity.
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Affiliation(s)
- Shiyao Sun
- Institute for Agri-Food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Zhihui Zhao
- Institute for Agri-Food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Qinxiong Rao
- Institute for Agri-Food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - XiaoMin Li
- Institute of Quality Standard and Testing Technology for Agro-Products, The Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, China
| | - Zheng Ruan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Junhua Yang
- Institute for Agri-Food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China.
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17
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Bartkiene E, Bartkevics V, Berzina Z, Klementaviciute J, Sidlauskiene S, Isariene A, Zeimiene V, Lele V, Mozuriene E. Fatty acid profile and safety aspects of the edible oil prepared by artisans' at small-scale agricultural companies. Food Sci Nutr 2021; 9:5402-5414. [PMID: 34646511 PMCID: PMC8497834 DOI: 10.1002/fsn3.2495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/31/2021] [Accepted: 07/17/2021] [Indexed: 11/10/2022] Open
Abstract
The aim of this study was to analyze the fatty acid (FA) profiles and mycotoxin and polycyclic aromatic hydrocarbon (PAH) concentrations in sea buckthorn (SB1, SB2), flaxseed (FL3, FL4, FL5), hempseed (HE6, HE7, HE8), camelina (CA9, CA10), and mustard (MU11) edible oils, prepared by artisans' by artisanal at small-scale agricultural companies in Lithuania. The dominant FAs were palmitic and oleic acids in SB; palmitic, stearic, oleic, linoleic, and α-linolenic acids in FL; palmitic, stearic, oleic, linoleic, and α-linolenic acids in HE; palmitic, oleic, linoleic, α-linolenic, eicosenoic, and erucic acids in CA; and oleic, linoleic, α-linolenic, eicosenoic, and erucic acids in MU. In SB2 oil samples, T-2 toxin and zearalenone concentrations higher than 1.0 µg/kg were found (1.7 and 3.0 µg/kg, respectively). In sample FL4, an ochratoxin A concentration higher than 1.0 µg/kg was established (1.2 µg/kg); also, in HE8 samples, 2.0 µg/kg of zearalenone was found. None of the tested edible oils exceeded the limits for PAH concentration. Finally, because of the special place of edible oils in the human diet, not only should their contamination with mycotoxins and PAHs be controlled but also their FA profile, as an important safety characteristic, must be taken into consideration to ensure higher safety standards.
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Affiliation(s)
- Elena Bartkiene
- Institute of Animal Rearing TechnologiesLithuanian University of Health SciencesKaunasLithuania
- Department of Food Safety and QualityLithuanian University of Health SciencesKaunasLithuania
| | - Vadims Bartkevics
- Institute of Food SafetyAnimal Health and Environment BIORRigaLatvia
| | - Zane Berzina
- Institute of Food SafetyAnimal Health and Environment BIORRigaLatvia
| | - Jolita Klementaviciute
- Institute of Animal Rearing TechnologiesLithuanian University of Health SciencesKaunasLithuania
| | - Sonata Sidlauskiene
- Institute of Animal Rearing TechnologiesLithuanian University of Health SciencesKaunasLithuania
| | | | - Vaida Zeimiene
- National Food and Veterinary Risk Assessment InstituteVilniusLithuania
| | - Vita Lele
- Institute of Animal Rearing TechnologiesLithuanian University of Health SciencesKaunasLithuania
- Department of Food Safety and QualityLithuanian University of Health SciencesKaunasLithuania
| | - Erika Mozuriene
- Institute of Animal Rearing TechnologiesLithuanian University of Health SciencesKaunasLithuania
- Department of Food Safety and QualityLithuanian University of Health SciencesKaunasLithuania
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18
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Song JL, Zhang GL. Deoxynivalenol and Zearalenone: Different Mycotoxins with Different Toxic Effects in the Sertoli Cells of Equus asinus. Cells 2021; 10:cells10081898. [PMID: 34440667 PMCID: PMC8394322 DOI: 10.3390/cells10081898] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 07/20/2021] [Accepted: 07/22/2021] [Indexed: 12/30/2022] Open
Abstract
(1) Background: Deoxynivalenol (DON) and zearalenone (ZEA) are type B trichothecene mycotoxins that exert serious toxic effects on the reproduction of domestic animals. However, there is little information about the toxicity of mycotoxins on testis development in Equus asinus. This study investigated the biological effects of DON and ZEA exposure on Sertoli cells (SCs) of Equus asinus; (2) Methods: We administered 10 μM and 30 μM DON and ZEA to cells cultured in vitro; (3) Results: The results showed that 10 μM DON exposure remarkably changed pyroptosis-associated genes and that 30 μM ZEA exposure changed inflammation-associated genes in SCs. The mRNA expression of cancer-promoting genes was remarkably upregulated in the cells exposed to DON or 30 μM ZEA; in particular, DON and ZEA remarkably disturbed the expression of androgen and oestrogen secretion-related genes. Furthermore, quantitative RT-PCR, Western blot, and immunofluorescence analyses verified the different expression patterns of related genes in DON- and ZEA-exposed SCs; (4) Conclusions: Collectively, these results illustrated the impact of exposure to different toxins and concrete toxicity on the mRNA expression of SCs from Equus asinus in vitro.
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Affiliation(s)
- Jun-Lin Song
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China;
- Central Laboratory, Qingdao Agricultural University, Qingdao 266109, China
| | - Guo-Liang Zhang
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China;
- Correspondence:
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19
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Deng Y, Wu Q, Wu W, Kuca K. New Determination Methods, Toxic Mechanisms, and Control Strategies (Preface to the special issue of Food and Chemical Toxicology on the Outcomes of Mycotoxins in Food). Food Chem Toxicol 2021; 155:112436. [PMID: 34293425 DOI: 10.1016/j.fct.2021.112436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The special issue "Mycotoxins in Food: New Determination Methods, Toxic Mechanisms, and Control Strategies" in Food and Chemical Toxicology contains 28 articles on current hot topics in mycotoxins, including deoxynivalenol, T-2 toxin, and fumonisins. Intestinal toxicity, immune toxicity, and oxidative stress are especially concerned by researchers in this special issue; moreover, mycotoxin detoxification and exposure and assessments in humans are reported in this context. All the new results in this special issue will help to further understand the toxic mechanisms of mycotoxins and cast new light for the control of mycotoxin contamination.
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Affiliation(s)
- Ying Deng
- College of Life Science, Yangtze University, Jingzhou, 434025, China
| | - Qinghua Wu
- College of Life Science, Yangtze University, Jingzhou, 434025, China.
| | - Wenda Wu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, 50003, Hradec Králové, Czech Republic.
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20
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Wang H, Zhang M, Zhang Y, Liu Y, Wang M, Liu Y, Liao Y, Li Z, Feng Y, Chen J. The decreased expression of integrin αv is involved in T-2 toxin-induced extracellular matrix degradation in chondrocytes. Toxicon 2021; 199:109-116. [PMID: 34139256 DOI: 10.1016/j.toxicon.2021.06.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 05/18/2021] [Accepted: 06/07/2021] [Indexed: 01/10/2023]
Abstract
T-2 toxin is one of the most toxic and common mycotoxins in grains and related products. It is considered a risk factor for Kashin-Beck disease (KBD), an endemic osteoarthritis. Both in vitro and in vivo studies have shown that T-2 toxin can cause extracellular matrix degradation; however, the underlying mechanism is unclear. Integrins have been found to regulate the expression of matrix metalloproteinases (MMPs), the 'scissors' of matrix proteins. In this study, we investigated whether integrin αv played a role in T-2 toxin-induced matrix degradation. Results from our study showed that the expression of integrin αv in the cartilage of rats fed T-2 toxin was reduced compared to that in rats fed a normal diet. Integrin αv was downregulated in T-2 toxin-treated C28/I2 chondrocytes, and selenium was found to have a protective effect. The expression of MMP-1, -3, -10, and -13 increased whereas that of type II collagen (Col II) protein decreased in C28/I2 cells treated with an integrin αv inhibitor. In conclusion, T-2 toxin can downregulate integrin αv expression in chondrocytes. Reduced integrin αv signalling could induce the release of MMPs, leading to matrix degradation.
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Affiliation(s)
- Hui Wang
- School of Public Health, Xi'an Jiaotong University, Key Laboratory of Environment and Genes Related to Diseases in the Education Ministry and Key Laboratory of Trace Elements and Endemic Diseases in Ministry of Health, Xi'an, Shaanxi, China
| | - Meng Zhang
- School of Public Health, Xi'an Jiaotong University, Key Laboratory of Environment and Genes Related to Diseases in the Education Ministry and Key Laboratory of Trace Elements and Endemic Diseases in Ministry of Health, Xi'an, Shaanxi, China
| | - Ying Zhang
- School of Public Health, Xi'an Jiaotong University, Key Laboratory of Environment and Genes Related to Diseases in the Education Ministry and Key Laboratory of Trace Elements and Endemic Diseases in Ministry of Health, Xi'an, Shaanxi, China
| | - Yinan Liu
- School of Public Health, Xi'an Jiaotong University, Key Laboratory of Environment and Genes Related to Diseases in the Education Ministry and Key Laboratory of Trace Elements and Endemic Diseases in Ministry of Health, Xi'an, Shaanxi, China
| | - Mengying Wang
- School of Public Health, Xi'an Jiaotong University, Key Laboratory of Environment and Genes Related to Diseases in the Education Ministry and Key Laboratory of Trace Elements and Endemic Diseases in Ministry of Health, Xi'an, Shaanxi, China
| | - Yue Liu
- School of Public Health, Xi'an Jiaotong University, Key Laboratory of Environment and Genes Related to Diseases in the Education Ministry and Key Laboratory of Trace Elements and Endemic Diseases in Ministry of Health, Xi'an, Shaanxi, China
| | - Yucheng Liao
- School of Public Health, Xi'an Jiaotong University, Key Laboratory of Environment and Genes Related to Diseases in the Education Ministry and Key Laboratory of Trace Elements and Endemic Diseases in Ministry of Health, Xi'an, Shaanxi, China
| | - Zhengzheng Li
- School of Public Health, Xi'an Jiaotong University, Key Laboratory of Environment and Genes Related to Diseases in the Education Ministry and Key Laboratory of Trace Elements and Endemic Diseases in Ministry of Health, Xi'an, Shaanxi, China
| | - Yiping Feng
- School of Public Health, Xi'an Jiaotong University, Key Laboratory of Environment and Genes Related to Diseases in the Education Ministry and Key Laboratory of Trace Elements and Endemic Diseases in Ministry of Health, Xi'an, Shaanxi, China
| | - Jinghong Chen
- School of Public Health, Xi'an Jiaotong University, Key Laboratory of Environment and Genes Related to Diseases in the Education Ministry and Key Laboratory of Trace Elements and Endemic Diseases in Ministry of Health, Xi'an, Shaanxi, China.
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21
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Li J, Zhang L, Wu T, Li Y, Zhou X, Ruan Z. Indole-3-propionic Acid Improved the Intestinal Barrier by Enhancing Epithelial Barrier and Mucus Barrier. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:1487-1495. [PMID: 33356219 DOI: 10.1021/acs.jafc.0c05205] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Destruction in intestinal barrier is concomitant with the intestinal diseases. There is growing evidence that tryptophan-derived intestinal bacterial metabolites play a critical role in maintaining the balance of intestinal mucosa. In this study, the Caco-2/HT29 coculture model was used to evaluate the effect of indole-3-propionic acid (IPA) on the intestinal barrier and explore its underlying mechanism. We found that IPA increased transepithelial electrical resistance and decreased paracellular permeability which was consistent with the increase in tight junction proteins (claudin-1, occludin, and ZO-1). Furthermore, IPA strengthened the mucus barrier by increasing mucins (MUC2 and MUC4) and goblet cell secretion products (TFF3 and RELMβ). Additionally, IPA weakened the expression of LPS-induced inflammatory factors. These discoveries provide new views for understanding the improvement of intestinal barrier by gut microbial metabolites of aromatic amino acids.
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Affiliation(s)
- Jiaojiao Li
- State Key Laboratory of Food Science and Technology, Institute of Nutrition and School of Food Science, Nanchang University, Nanchang 330047, China
| | - Li Zhang
- State Key Laboratory of Food Science and Technology, Institute of Nutrition and School of Food Science, Nanchang University, Nanchang 330047, China
| | - Tao Wu
- State Key Laboratory of Food Science and Technology, Institute of Nutrition and School of Food Science, Nanchang University, Nanchang 330047, China
| | - Yafei Li
- University Campus Hospital and Jiangxi Academy of Medical Science, Nanchang University, Nanchang 330006, China
| | - Xiaojun Zhou
- School of Public Health, Jiangxi Province Key Laboratory of Preventive Medicine, Nanchang University, Nanchang 330006, China
| | - Zheng Ruan
- State Key Laboratory of Food Science and Technology, Institute of Nutrition and School of Food Science, Nanchang University, Nanchang 330047, China
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22
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Betulinic Acid Alleviates Spleen Oxidative Damage Induced by Acute Intraperitoneal Exposure to T-2 Toxin by Activating Nrf2 and Inhibiting MAPK Signaling Pathways. Antioxidants (Basel) 2021; 10:antiox10020158. [PMID: 33499152 PMCID: PMC7912660 DOI: 10.3390/antiox10020158] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 01/17/2021] [Accepted: 01/18/2021] [Indexed: 12/17/2022] Open
Abstract
T-2 toxin, which is mainly produced by specific strains of Fusarium in nature, can induce immunotoxicity and oxidative stress, resulting in immune organ dysfunction and apoptosis. Betulinic acid (BA), a pentacyclic triterpenoids from nature plants, has been demonstrated to possess immunomodulating and antioxidative bioactivities. The purpose of the study was to explore the effect of BA on T-2 toxin-challenged spleen oxidative damage and further elucidate the underlying mechanism. We found that BA not only ameliorated the contents of serum total cholesterol (TC) and triglyceride (TG) but also restored the number of lymphocytes in T-2 toxin-induced mice. BA dose-dependently reduced the accumulation of reactive oxygen species (ROS), enhanced superoxide dismutase (SOD) activity, and decreased malondialdehyde (MDA) content, as well as increased the total antioxidant capacity (T-AOC) in the spleen of T-2-toxin-exposed mice. Moreover, BA reduced inflammatory cell infiltration in the spleen, improved the morphology of mitochondria and enriched the number of organelles in splenocytes, and dramatically attenuated T-2 toxin-triggered splenocyte apoptosis. Furthermore, administration of BA alleviated the protein phosphorylation of p38, c-Jun N-terminal kinase (JNK), and extracellular signal-regulated kinases (ERK); decreased the protein expression of kelch-like erythroid cell-derived protein with CNC homology [ECH]-associated protein1 (Keap1); and increased the protein expression of nuclear factor erythroid 2 [NF-E2]-related factor (Nrf2) and heme oxygenase-1 (HO-1) in the spleen. These findings demonstrate that BA defends against spleen oxidative damage associated with T-2 toxin injection by decreasing ROS accumulation and activating the Nrf2 signaling pathway, as well as inhibiting the mitogen-activated protein kinase (MAPK) signaling pathway.
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23
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Taroncher M, Rodríguez-Carrasco Y, Ruiz MJ. Interactions between T-2 toxin and its metabolites in HepG2 cells and in silico approach. Food Chem Toxicol 2020; 148:111942. [PMID: 33359025 DOI: 10.1016/j.fct.2020.111942] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/16/2020] [Accepted: 12/18/2020] [Indexed: 10/22/2022]
Abstract
The T-2 toxin (T-2) is commonly metabolized to HT-2 toxin (HT-2), Neosolaniol (NEO), T2-triol and T2-tetraol and they can modify the toxicity of T-2. In this study, T-2 and its modified forms were evaluated by in vitro and in silico methods. The in vitro cytotoxicity individually was evaluated by MTT and Total Protein Content (PC) assays in human hepatocarcinoma (HepG2) cells. The order of IC50 was T-2 tetraol > T-2 triol > NEO > T-2 = HT-2. The T-2 and HT-2 evidenced the highest cytotoxic effect in HepG2 cells individually. No differences were observed in binary combinations tested and the two mycotoxins in the mixture tested individually. The T-2+HT-2 combination showed the highest toxic potential with the lowest IC50 value of 34.42 ± 0.58 nM at 24 h. All binary combinations exhibited antagonistic interactions. The ADME and toxicity profile of mycotoxins were obtained by the in silico admetSAR predictive model which determines the metabolic and toxicological approaches in order to know if these mycotoxins might be taken into consideration to support a more realistic and adequate risk assessment.
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Affiliation(s)
- Mercedes Taroncher
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, University of Valencia, Av Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
| | - Yelko Rodríguez-Carrasco
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, University of Valencia, Av Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain.
| | - María-José Ruiz
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, University of Valencia, Av Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
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24
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Janik E, Niemcewicz M, Ceremuga M, Stela M, Saluk-Bijak J, Siadkowski A, Bijak M. Molecular Aspects of Mycotoxins-A Serious Problem for Human Health. Int J Mol Sci 2020; 21:E8187. [PMID: 33142955 PMCID: PMC7662353 DOI: 10.3390/ijms21218187] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/28/2020] [Accepted: 10/30/2020] [Indexed: 01/09/2023] Open
Abstract
Mycotoxins are toxic fungal secondary metabolities formed by a variety of fungi (moulds) species. Hundreds of potentially toxic mycotoxins have been already identified and are considered a serious problem in agriculture, animal husbandry, and public health. A large number of food-related products and beverages are yearly contaminated by mycotoxins, resulting in economic welfare losses. Mycotoxin indoor environment contamination is a global problem especially in less technologically developed countries. There is an ongoing effort in prevention of mould growth in the field and decontamination of contaminated food and feed in order to protect human and animal health. It should be emphasized that the mycotoxins production by fungi (moulds) species is unavoidable and that they are more toxic than pesticides. Human and animals are exposed to mycotoxin via food, inhalation, or contact which can result in many building-related illnesses including kidney and neurological diseases and cancer. In this review, we described in detail the molecular aspects of main representatives of mycotoxins, which are serious problems for global health, such as aflatoxins, ochratoxin A, T-2 toxin, deoxynivalenol, patulin, and zearalenone.
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Affiliation(s)
- Edyta Janik
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Marcin Niemcewicz
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Michal Ceremuga
- Military Institute of Armament Technology, Prymasa Stefana Wyszyńskiego 7, 05-220 Zielonka, Poland
| | - Maksymilian Stela
- CBRN Reconnaissance and Decontamination Department, Military Institute of Chemistry and Radiometry, Antoniego Chrusciela "Montera" 105, 00-910 Warsaw, Poland
| | - Joanna Saluk-Bijak
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Adrian Siadkowski
- Department of Security and Crisis Menagement, Faculty of Applied Sciences, University of Dabrowa Gornicza, Zygmunta Cieplaka 1c, 41-300 Dabrowa Gornicza, Poland
| | - Michal Bijak
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
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25
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Tran VN, Viktorová J, Ruml T. Mycotoxins: Biotransformation and Bioavailability Assessment Using Caco-2 Cell Monolayer. Toxins (Basel) 2020; 12:E628. [PMID: 33008111 PMCID: PMC7601793 DOI: 10.3390/toxins12100628] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/24/2020] [Accepted: 09/18/2020] [Indexed: 12/17/2022] Open
Abstract
The determination of mycotoxins content in food is not sufficient for the prediction of their potential in vivo cytotoxicity because it does not reflect their bioavailability and mutual interactions within complex matrices, which may significantly alter the toxic effects. Moreover, many mycotoxins undergo biotransformation and metabolization during the intestinal absorption process. Biotransformation is predominantly the conversion of mycotoxins meditated by cytochrome P450 and other enzymes. This should transform the toxins to nontoxic metabolites but it may possibly result in unexpectedly high toxicity. Therefore, the verification of biotransformation and bioavailability provides valuable information to correctly interpret occurrence data and biomonitoring results. Among all of the methods available, the in vitro models using monolayer formed by epithelial cells from the human colon (Caco-2 cell) have been extensively used for evaluating the permeability, bioavailability, intestinal transport, and metabolism of toxic and biologically active compounds. Here, the strengths and limitations of both in vivo and in vitro techniques used to determine bioavailability are reviewed, along with current detailed data about biotransformation of mycotoxins. Furthermore, the molecular mechanism of mycotoxin effects is also discussed regarding the disorder of intestinal barrier integrity induced by mycotoxins.
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Affiliation(s)
| | | | - Tomáš Ruml
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, Technicka 3, 166 28 Prague 6, Czech Republic; (V.N.T.); (J.V.)
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26
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An update on T-2 toxin and its modified forms: metabolism, immunotoxicity mechanism, and human exposure assessment. Arch Toxicol 2020; 94:3645-3669. [PMID: 32910237 DOI: 10.1007/s00204-020-02899-9] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 09/01/2020] [Indexed: 12/18/2022]
Abstract
T-2 toxin is the most toxic trichothecene mycotoxin, and it exerts potent toxic effects, including immunotoxicity, neurotoxicity, and reproductive toxicity. Recently, several novel metabolites, including 3',4'-dihydroxy-T-2 toxin and 4',4'-dihydroxy-T-2 toxin, have been uncovered. The enzymes CYP3A4 and carboxylesterase contribute to T-2 toxin metabolism, with 3'-hydroxy-T-2 toxin and HT-2 toxin as the corresponding primary products. Modified forms of T-2 toxin, including T-2-3-glucoside, exert their immunotoxic effects by signaling through JAK/STAT but not MAPK. T-2-3-glucoside results from hydrolyzation of the corresponding parent mycotoxin and other metabolites by the intestinal microbiota, which leads to enhanced toxicity. Increasing evidence has shown that autophagy, hypoxia-inducible factors, and exosomes are involved in T-2 toxin-induced immunotoxicity. Autophagy promotes the immunosuppression induced by T-2 toxin, and a complex crosstalk between apoptosis and autophagy exists. Very recently, "immune evasion" activity was reported to be associated with this toxin; this activity is initiated inside cells and allows pathogens to escape the host immune response. Moreover, T-2 toxin has the potential to trigger hypoxia in cells, which is related to activation of hypoxia-inducible factor and the release of exosomes, leading to immunotoxicity. Based on the data from a series of human exposure studies, free T-2 toxin, HT-2 toxin, and HT-2-4-glucuronide should be considered human T-2 toxin biomarkers in the urine. The present review focuses on novel findings related to the metabolism, immunotoxicity, and human exposure assessment of T-2 toxin and its modified forms. In particular, the immunotoxicity mechanisms of T-2 toxin and the toxicity mechanism of its modified form, as well as human T-2 toxin biomarkers, are discussed. This work will contribute to an improved understanding of the immunotoxicity mechanism of T-2 toxin and its modified forms.
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