AI Article Synopsis
- Deoxynivalenol (DON) and T-2 toxin are common mycotoxins found in food and feed, and they pose risks for Kashin-Beck disease, impacting bone health.
- This study aimed to assess the individual and combined toxic effects of these mycotoxins on human and rat chondrocytes using various concentration ratios.
- The findings revealed that T-2 toxin is significantly more toxic than DON, and their combined effects can be synergistic or antagonistic depending on the concentration and type of chondrocyte.
Article Abstract
Deoxynivalenol (DON) and T-2 toxin are prevalent mycotoxin contaminants in the food and feed stuffs worldwide, with non-negligible co-contamination and co-exposure conditions. Meanwhile, they are considerable risk factors for Kashin-Beck disease, a chronic endemic osteochondropathy. The aim of this study was to investigate the individual and combined cytotoxicity of DON and T-2 toxin on proliferating human C-28/I2 and newborn rat primary costal chondrocytes by MTT assay. Four molar concentration combination ratios of DON and T-2 toxin were used, 1:1 for R1 mixture, 10:1 for R10, 100:1 for R100 and 1000:1 for R1000. The toxicological interactions were quantified by the MixLow method. DON, T-2 toxin, and their mixtures all showed a clear dose-dependent toxicity for chondrocytes. The cytotoxicity of T-2 toxin was 285-fold higher than DON was in human chondrocytes, and 22-fold higher in the rat chondrocytes. The combination of DON and T-2 toxin was significantly synergistic at middle and high level concentrations of R10 mixtures in rat chondrocytes, but significantly antagonistic at the low concentrations of R100 mixtures in both cells and at the middle concentrations of R1000 mixtures in rat chondrocytes. These results indicated that the combined toxicity was influenced by the cell sensitivity for toxins, the difference between the combination ratio and equitoxic ratio, the concentrations and other factors.
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| http://dx.doi.org/10.1002/jat.3725 | DOI Listing |
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