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Updated: Jun 21, 2026
07:59
A Customizable Approach for the Enzymatic Production and Purification of Diterpenoid Natural Products
Published on: October 4, 2019
Metabolic pathways of trichothecenes
Qinghua Wu1, Vlastimil Dohnal, Lingli Huang
1National Reference Laboratory of Veterinary Drug Residues (HZAU)/MAO Key Laboratory of Food Safety Evaluation, Huazhong Agricultural University, Wuhan, People's Republic of China.
Drug Metabolism Reviews
|August 15, 2009
Summary
This review details how trichothecene mycotoxins are metabolized differently across animals and humans. Understanding these metabolic pathways is crucial for assessing food safety risks associated with these fungal toxins.
Area of Science:
- Food Science
- Toxicology
- Mycology
Background:
- Trichothecenes are mycotoxins produced by Fusarium fungi, posing risks to food safety.
- Consumer concern exists regarding the toxicity of trichothecenes and their metabolites in food-producing animals.
Purpose of the Study:
- To review the metabolism of key trichothecenes (T-2 toxin, DON, NIV, FX, DAS, 3-aDON, 15-aDON) in various species.
- To elucidate the metabolic pathways and identify major metabolites in animals and humans.
- To provide foundational data for risk assessment of trichothecenes in the food chain.
Main Methods:
- Literature review of trichothecene metabolism studies.
- Comparative analysis of metabolic pathways across species (rodents, swine, ruminants, poultry, humans).
- Identification and comparison of major metabolites for each toxin.
Main Results:
- Metabolic pathways vary significantly between species.
- T-2 toxin metabolism involves hydrolysis, hydroxylation, de-epoxidation, and conjugation; HT-2 toxin is a major metabolite in humans.
- De-epoxidation is a key detoxification pathway in animals, producing DOM-1 (from DON) and de-epoxy-NIV (from NIV), which are absent in humans.
- Diacetoxyscirpenol (DAS) is metabolized to 15-monoacetoxyscirpenol (15-MAS) and scirpentriol (SCP) in animals, with 15-MAS being prominent in human skin.
Conclusions:
- Understanding trichothecene metabolism is vital for evaluating their fate and toxicological impact in food-producing animals and humans.
- Significant differences in metabolism between humans and animals necessitate species-specific risk assessments.
- This review provides essential information for enhancing food safety strategies against mycotoxin contamination.
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