Abstract
Deoxynivalenol (DON) is a trichothecene mycotoxin produced by various species of fungi. Trichothecenes are known as major contaminants of cereals and cereal-containing foods. DON has been detected in agricultural products worldwide and persists in products after processing. In humans as well as in animals, DON has been shown to induce both alimentary and hematological toxicities. Granulo-monocytic progenitors (CFU-GM) from human umbilical cord blood from rat bone marrow were cultured in the presence of DON (from 10-6 to 10-8 mol/L) for 14 days. DON rapidly inhibits human and rat CFU-GM in a concentration-dependent manner between 10-6 and 2.5 × 10-7 mol/L. IC50 values on days 7, 10, and 14 were, respectively, 3 × 10-8, 2.9 × 10-8, 3.9 × 10-8 mol/L for human CFU-GM and 2.6 × 10-7, 1.5 × 10-7, and 1.6 × 10-7 mol/L for rat CFU-GM. The present study defines the cytotoxic and inhibitory DON concentrations for rat and human CFU-GM and provides a system for further investigation of cellular DON targets and elucidation of the mechanism of trichothecene hematotoxicity. Moreover, we propose one of the trichothecenes tested in our studies as a reference molecule for in vitro studies, since one mycotoxin seems to be the most potent myelotoxic inhibitor of CFU-GM detected to date.
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Lautraite, S., Parent-Massin, D., Rio, B. et al. In vitro toxicity induced by deoxynivalenol (DON) on human and rat granulomonocytic progenitors. Cell Biol Toxicol 13, 175–183 (1997). https://doi.org/10.1023/A:1007306212898
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DOI: https://doi.org/10.1023/A:1007306212898