The activities of mycotoxins derived from Fusarium and related substances in a short-term transformation assay using v-Ha- ras-transfected BALB/3T3 cells (Bhas 42 cells)

Cell transformation assays using BALB/3T3 cells can mimic the two-stage process of chemical carcinogenesis in experimental animals. A short-term transformation assay using v-Ha- ras-transfected BALB/3T3 cells (Bhas 42 cells), which was developed by Ohmori et al. and modified by Asada et al., has bee...

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Bibliographic Details
Published in:Mutation research. Genetic toxicology and environmental mutagenesis 2007-06, Vol.630 (1), p.103-111
Main Authors: Sakai, Ayako, Suzuki, Chihiro, Masui, Yasuko, Kuramashi, Ai, Takatori, Kosuke, Tanaka, Noriho
Format: Article
Language:English
Subjects:
Bhas 42 cells
Biological and medical sciences
Fumonisin B 1
Fundamental and applied biological sciences. Psychology
Fusarium
Genetics of eukaryotes. Biological and molecular evolution
Medical sciences
Mycotoxins
T-2 toxin
Toxicology
Transformation
Tumor promotion
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Summary:Cell transformation assays using BALB/3T3 cells can mimic the two-stage process of chemical carcinogenesis in experimental animals. A short-term transformation assay using v-Ha- ras-transfected BALB/3T3 cells (Bhas 42 cells), which was developed by Ohmori et al. and modified by Asada et al., has been reported to detect both tumor initiators and promoters as transformation initiators and promoters, respectively, with their differences based on their protocols. In this new short-term assay, we examined mycotoxins derived from Fusarium and related substances for the initiation and promotion activities of the transformation. The tested substances included deoxynivalenol, nivalenol, fusarenon-X, T-2 toxin, fumonisin B 1, fumonisin B 2, zearalenone, α-zearalanol, β-zearalanol, α-zearalenol and β-zearalenol. Fumonisin B 1 and T-2 toxin were positive for promoting activity in the assay. Especially, T-2 toxin was active at concentrations as low as 0.001–0.002 μg/mL in the culture medium. From a comparison between the results of this study and published carcinogenicity assay data, it was expected that the Bhas 42 cell transformation assay had a good correlation with the two-stage carcinogenicity tests using experimental animals for estimation of the tumor-promoting activity.
ISSN:1383-5718
1879-3592
DOI:10.1016/j.mrgentox.2007.03.005