The effects of dexamethasone(Dex)on the 3H-Dex specific binding were studied in the human heptatocellular carcinoma cell line(SMMC-7721) by using counting vial culture assay.Cells were cultivated in the counting vials, as th; grew well and the monolayer cells adhered to the wall of vials.The cells were cultivated in the mdium containing 10-3,10-7, and 10-6mol/L Dex for 6, 12, 24 and 48 h, and then the specific binding of 3H-Dex at 30nmol/L of the ligand was determined after elimination of the effect of the ...