ln order to investigate the effetcts of bisphenol A (BPA) on cell mediated immune reaction in vitro we examined the allogenic mixed lymphocyte reaction (MLR), splenocytes proliferation (SP) to T cell mitogens and IFN- ¥ã production. Splenocytes of Balb/c mice (1.5¡¿105 cells/well) were co-cultured with different numbers of mitomycin C-treated mature dentritic cells (DCs) in presence of BPA (25, 50, 100 §) and (3H)thymidine incorporation (cpm) was measured by scintilation counting. Splenocytes (2¡¿106 cells/well) were cultured with mitogens, Con A (2 §¶/§¢), PHA (5 §¶/§¢) and IL-2 (0.1 §¶/§¢), or PMA (5 ng/§¢) and INO (1§¶/§¢) in presence of BPA (1, 10, 25, 50, 100 §) and SP was assessed by MTT assay. IFN-¥ã levels in culture supernant were determined by ELISA. At low concentration, BPA slightly increased MLR, SP and IFN-¥ã levels, but at higher concentration it showed significant inhibitory effects on these immunological parameters. These results indicate that BPA is able to alternate cell-mediated immune reaction.
|