[Objective]In order to investigate the anti- tumour effects of diallyl disulfide on human esophageal cancer Eca109 cell line in vitro. [Methods]Cell toxicity and cell proliferation were measured by MTT assays,cell morphologic changes were examined by hoechst33258 staining using fluorescence microscope,cell cycle progression was studied in vitro using flow cytometry( FCM). [Results]The cell proliferation of cells treated with DADS was inhibited in dose and time dependent. when Eca109 cells were treated with ...