Objective To investigate the effect of dominant negative epidermal growth factor receptor(DNEGFR)on the growth of human gastric cancer cells as well as the relevant molecular mechanism.Methods Human gastric cancer NCIN87 and SGC-7901 cells were transfected with plasmid pEGFPN1-DNEGFR,from which stably transfected cell strains were screened and determined for growth in vitro by MTT assay,for apoptosis by terminal deoxynucleotidyl transferase mediated deoxyuridine triphosphate nick-end labeling(TUNEL)assay,fo...