Individual and combined cytotoxicity of major trichothecenes type B, deoxynivalenol, nivalenol, and fusarenon-X on Jurkat human T cells
2019
Aupanun, Sawinee | Phuektes, Patchara | Poapolathep, Saranya | Alassane-Kpembi, Imourana | Oswald, Isabelle P. | Poapolathep, Amnart | Kasetsart University [Bangkok, Thailand] (KU) | Khon Kaen University [Thailand] (KKU) | ToxAlim (ToxAlim) ; Institut National de la Recherche Agronomique (INRA)-Université Toulouse III - Paul Sabatier (UT3) ; Université de Toulouse (UT)-Université de Toulouse (UT)-Ecole Nationale Vétérinaire de Toulouse (ENVT) ; Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Ecole d'Ingénieurs de Purpan (INP - PURPAN) ; Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Université de Toulouse (UT) | Biosynthèse & Toxicité des Mycotoxines (ToxAlim-BioToMyc) ; ToxAlim (ToxAlim) ; Institut National de la Recherche Agronomique (INRA)-Université Toulouse III - Paul Sabatier (UT3) ; Université de Toulouse (UT)-Université de Toulouse (UT)-Ecole Nationale Vétérinaire de Toulouse (ENVT) ; Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Ecole d'Ingénieurs de Purpan (INP - PURPAN) ; Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de la Recherche Agronomique (INRA)-Université Toulouse III - Paul Sabatier (UT3) ; Université de Toulouse (UT)-Université de Toulouse (UT)-Ecole Nationale Vétérinaire de Toulouse (ENVT) ; Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Ecole d'Ingénieurs de Purpan (INP - PURPAN) ; Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Université de Toulouse (UT) | Center for Advanced Studies for Agriculture and Food, Institute for Advanced Studies, Kasetsart University under the Higher Education Research Promotion and National Research University Project of Thailand, Office of the Higher Education Commission, Ministry of Education, Thailand
International audience
Afficher plus [+] Moins [-]anglais. Food and feed commodities are often contaminated by more than one mycotoxin. Among the several combinations that frequently occur, fusariotoxins are often mentioned. The multi-mycotoxins contamination is a serious threat for health. In the present study we investigated the toxic interactions between deoxynivalenol (DON), nivalenol (NIV), and fusarenon-X (FX) in Jurkat T cells by using the MTT assay. The tested mycotoxins alone or in combination had a dose dependent effect on proliferating lymphocytes. According to IC50, it could be classified in decreasing order of toxicity: FX > NIV > DON > DON + FX > NIV + FX > DON + NIV > DON + NIV + FX. The type of mycotoxin interactions was assessed by calculating the combination index (CI) and the dose reduction index (DRI). Our data indicate that an antagonistic effect was strongly observed in binary combination between DON and NIV at higher concentrations and ternary mixtures. Meanwhile, the DON and FX mixtures generated moderate antagonism, while NIV and FX provoked different interactions. The effects of tested mycotoxins on apoptosis were also determined using a FACScan flow cytometer. At IC75, the percentages of apoptotic cells in all treatment groups were significantly different when compared to control group but no significant differences among treatment groups was observed. Taken together, our data suggest that immunotoxicity among multi-mycotoxins contamination cannot be predicted based on individual effects but depends on the mixtures, ratio and/or concentrations in the product, as well as type of target cells.
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