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Published on: June 16, 2011
T-2 toxin-induced cytotoxicity and damage on TM3 Leydig cells
Zhihang Yuan1, Froilan Bernard Matias2, Jin-e Yi1
1Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, PR China.
Abstract:
T-2 toxin is a highly toxic mycotoxin produced by various Fusarium species, mainly, Fusarium sporotrichoides, and has been reported to have toxic effects on reproductive system of adult male animals. This study investigated the dose-dependent cytotoxicity of T-2 toxin on reproductive cells using TM3 Leydig cells. Specifically, the cytotoxic effect of T-2 toxin was assessed by measuring cell viability; lactate dehydrogenase (LDH); malondialdehyde (MDA); antioxidant activity by measuring superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-PX), and DNA damage; and cell apoptosis. Results showed that T-2 toxin is highly cytotoxic on TM3 Leydig cells. However, Trolox-treated TM3 Leydig cells showed significantly reduced oxidative damage, DNA damage, and apoptosis induced by T-2 toxin. This study proves that T-2 toxin can damage the testes and thus affects the reproductive capacity of animals and humans. Furthermore, oxidative stress plays an important role in the cytotoxic effect of T-2 toxin.
Insights
T-2 toxin, a mycotoxin from Fusarium, severely harms male reproductive cells (TM3 Leydig cells) by causing cytotoxicity and oxidative stress. Trolox treatment mitigated these harmful T-2 toxin effects, suggesting a potential protective strategy.
Area of Science:
- Toxicology
- Reproductive Biology
- Cell Biology
Background:
- T-2 toxin is a potent mycotoxin produced by Fusarium species.
- It is known to negatively impact the male reproductive system.
- Understanding its cellular effects is crucial for assessing reproductive health risks.
Purpose of the Study:
- To investigate the dose-dependent cytotoxic effects of T-2 toxin on TM3 Leydig cells.
- To evaluate the role of oxidative stress in T-2 toxin-induced reproductive cell damage.
- To assess the protective potential of Trolox against T-2 toxin toxicity.
Main Methods:
- Assessed T-2 toxin cytotoxicity by measuring cell viability, lactate dehydrogenase (LDH), and malondialdehyde (MDA).
- Measured antioxidant activity including superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-PX).
- Evaluated DNA damage and apoptosis in TM3 Leydig cells exposed to T-2 toxin, with and without Trolox treatment.
Main Results:
- T-2 toxin demonstrated significant dose-dependent cytotoxicity on TM3 Leydig cells.
- T-2 toxin exposure led to increased oxidative stress markers and DNA damage.
- Trolox treatment significantly reduced oxidative damage, DNA damage, and apoptosis induced by T-2 toxin.
- T-2 toxin induced significant apoptosis in TM3 Leydig cells.
Conclusions:
- T-2 toxin is highly cytotoxic to TM3 Leydig cells, impacting male reproductive health.
- Oxidative stress is a key mechanism underlying T-2 toxin's reproductive toxicity.
- Trolox exhibits protective effects against T-2 toxin-induced cellular damage, highlighting its potential therapeutic relevance.
