RESUMEN
The aims of this study were to compare the inhibitory effect of nimesulide and indomethacin on gastric cancer cells, to investigate the effect of nimesulide on SGC7901 and 7901-AS, and to evaluate its probable mechanism. After incubated with nimesulide (0～200?mol/L) or indomethacin (0～25?mol/L), the proliferation of gastric cancer cells was measured by MTT assay. The cell cycle of SGC7901, 7901-P, 7901-AS was respectively observed after being incubated with nimesulide and vehicle control, by using fluorescence activated cell sorter (FACS). Ultramicrostructure of gastric cancer cells (SGC7901,7901-AS,SGC7901+nimesulide) was observed by electronmicroscopy. The results showed that by MTT assay nimesulide, as indomethacin, had dose-dependent inhibitory effects on proliferation of gastric cancer cells. Compared to the inhibitory effect of nimesulide on SGC7901, it was less on 7901-AS (P