Aim To study the anti-tumor activity and the possible mechanism of thiophene-2-carboxaldehydeN(4)-methylthiosemicarbazone and its Ag(Ⅰ) complex for esophageal EC109 in vitro.Methods The effect of the thiophene-2-carboxaldehydeN(4)-methyl thiosemicarbazone and its Ag(Ⅰ) complex on cell proliferation for esophageal EC109 in vitro was tested by MTT method.Giemsa staining and acridine orange(AO) fluorescence staining were used to observe the morphological changes of the esophageal EC109.Cell apoptosis and cell ...