- Qing-Hua Wu1,5,
- Xu Wang2,
- Wei Yang3,
- Andreas K. Nüssler3,
- Ling-Yun Xiong4,
- Kamil Kuča5,6,
- Vlastimil Dohnal7,
- Xiu-Juan Zhang8 &
- …
- Zong-Hui Yuan2
4004Accesses
6Altmetric
Abstract
Trichothecenes are a large family of structurally related toxins mainly produced byFusarium genus. Among the trichothecenes, T-2 toxin and deoxynivalenol (DON) cause the most concern due to their wide distribution and highly toxic nature. Trichothecenes are known for their inhibitory effect on eukaryotic protein synthesis, and oxidative stress is one of their most important underlying toxic mechanisms. They are able to generate free radicals, including reactive oxygen species, which induce lipid peroxidation leading to changes in membrane integrity, cellular redox signaling, and in the antioxidant status of the cells. The mitogen-activated protein kinases signaling pathway is induced by oxidative stress, which also induces caspase-mediated cellular apoptosis pathways. Several new metabolites and novel metabolic pathways of T-2 toxin have been discovered very recently. In human cell lines, HT-2 and neosolaniol (NEO) are the major metabolites of T-2 toxin. Hydroxylation on C-7 and C-9 are two novel metabolic pathways of T-2 toxin in rats. The metabolizing enzymes CYP3A22, CYP3A29, and CYP3A46 in pigs, as well as the enzymes CYP1A5 and CYP3A37 in chickens, are able to catalyze T-2 toxin and HT-2 toxin to form the C-3′–OH metabolites. Similarly to carboxylesterase, CYP3A29 possesses the hydrolytic ability in pigs to convert T-2 toxin to NEO. T-2 toxin is able to down- or upregulate cytochrome P-450 enzymes in different species. The metabolism of DON in humans is region-dependent. Free DON and DON-glucuronide are considered to be the biomarkers for humans. The masked mycotoxin DON-3-β-d-glucoside can be hydrolyzed to free DON in the body. This review will provide useful information on the progress of oxidative stress as well as on the metabolism and the metabolizing enzymes of T-2 toxin and DON. Moreover, the literature will throw light on the blind spots of metabolism and toxicological studies in trichothecenes that have to be explored in the future.
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Abbreviations
- ALAT:
Alanine aminotransferase
- ALT:
Alanine transaminase
- ASAT:
Aspartate aminotransferase
- AST:
Aspartate transaminase
- ATA:
Alimentary toxic aleukia
- BBB:
Blood–brain barrier
- CAT:
Catalase
- CES1C5:
Carboxylesterase 1C5
- CYP450:
Cytochrome P-450
- DOM-1:
C12,13-deepoxy-DON
- DON:
Deoxynivalenol
- DON-3-Glc:
DON-3-O-glucoside
- DON-GlcA:
DON-glucuronide
- EPHX1:
Epoxide hydrolase
- EROD:
EthoxyresorufinO-deethylase
- GGT:
γ-Glutamyltransferase
- GPT:
Glutamate pyruvate transaminase
- GPx:
Glutathione peroxidase
- GSH:
Glutathione
- HSP-70:
Heat-shock protein-70
- MAPK:
Mitogen-activated protein kinases
- MDA:
Malondialdehyde
- MROD:
MethoxyresorufinO-demethylase
- NEO:
Neosolaniol
- NHA:
Normal human astrocytes
- NHLF:
Normal human lung fibroblasts
- NMR:
Nuclear magnetic resonance
- PBMC:
Peripheral blood mononuclear cells
- PROD:
PentoxyresorufinO-depentylase
- ROS:
Reactive oxygen species
- RPTEC:
Renal proximal tubule epithelial cells
- SOD:
Superoxidae dismutase
- TBARS:
Thiobarbituric acid substance
- TDI:
Tolerable daily intake
- UDPGA:
Uridine 5′-diphospho-glucuronic acid
- UGTs:
UDP-glucuronosyltransferases
- γ-GT:
γ-Glutamyl transferase
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Acknowledgments
This work was financially supported by National Basic Research Program of China (973 program; Grant no.2009CB118800) and the project of Excellence FIM UHK as well as the long-term development plan UHHK.
Conflict of interest
The authors declare that they have no conflict of interest.
Author information
Authors and Affiliations
College of Life Science, Yangtze University, Jingzhou, 434025, Hubei, People’s Republic of China
Qing-Hua Wu
National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, MOA Laboratory of Risk Assessment for Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, 430070, Hubei, People’s Republic of China
Xu Wang & Zong-Hui Yuan
Department of Traumatology, BG Trauma Center, University of Tübingen, Schnarrenbergstr. 95, 72076, Tübingen, Germany
Wei Yang & Andreas K. Nüssler
Department of Hand, Plastic and Reconstructive Surgery, Burn Center, BG Trauma Center, University of Heidelberg, Ludwigshafen, Germany
Ling-Yun Xiong
Center for Basic and Applied Research, Faculty of Informatics and Management, University of Hradec Kralove, Hradec Kralove, Czech Republic
Qing-Hua Wu & Kamil Kuča
Biomedical research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
Kamil Kuča
Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03, Hradec Kralove, Czech Republic
Vlastimil Dohnal
College of Horticulture and Garden, Yangtze University, Jingzhou, 434023, Hubei, People’s Republic of China
Xiu-Juan Zhang
- Qing-Hua Wu
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- Xu Wang
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- Wei Yang
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- Andreas K. Nüssler
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- Ling-Yun Xiong
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- Kamil Kuča
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- Vlastimil Dohnal
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- Xiu-Juan Zhang
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- Zong-Hui Yuan
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Corresponding authors
Correspondence toQing-Hua Wu orZong-Hui Yuan.
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Qing-Hua Wu, Xu Wang, and Wei Yang have contributed equally to this work.
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Wu, QH., Wang, X., Yang, W.et al. Oxidative stress-mediated cytotoxicity and metabolism of T-2 toxin and deoxynivalenol in animals and humans: an update.Arch Toxicol88, 1309–1326 (2014). https://doi.org/10.1007/s00204-014-1280-0
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