title: Effect of cianidanol (KB-53) on the activity of mouse cytotoxic-T-lymphocytes.
abstract: The effect of cianidanol (KB-53) on the mouse cytotoxic-T-lymphocyte (CTL) activity of the splenic cells was investigated. The CTL activity of the splenic cells prepared from C3H/He, DBA/2 and CBA strain mice which had been sensitized with EL-4 cells were recognized markedly 11 d after the sensitization. The CTL activity showed an antigen specificity. KB-53, in a dose range of 125-1000 mg/kg, augmented the mouse CTL activity in a dose-dependent manner by oral administration once daily for 5 d beginning immediately after the sensitization. This CTL activity disappeared with treatment of the splenic cell with anti-thy-l serum and normal guinea pig serum, therefore, it was confirmed that the cytotoxic activity of the splenic cells which were prepared from the mice sensitized with EL-4 cells depended on the T-cell activity.
mesh_terms: D000818:Animals; D000961:Antilymphocyte Serum / Q000494:pharmacology; D001578:Benzopyrans / Q000494:pharmacology*; D002392:Catechin / Q000494:pharmacology*; D003165:Complement System Proteins / Q000494:pharmacology; D003602:Cytotoxicity, Immunologic / Q000187:drug effects*; D007700:Kinetics; D008297:Male; D051379:Mice; D008809:Mice, Inbred C3H; D008810:Mice, Inbred C57BL; D008808:Mice, Inbred CBA; D008811:Mice, Inbred DBA; D009374:Neoplasms, Experimental / Q000276:immunology; D013045:Species Specificity; D013154:Spleen / Q000166:cytology; D013602:T-Lymphocytes, Cytotoxic / Q000187:drug effects* / Q000276:immunology; D013997:Time Factors
chemical_list: D000961:Antilymphocyte Serum; D001578:Benzopyrans; D002392:Catechin; D003165:Complement System Proteins