AGS and L929 cells were obtained from National Cell Bank of Iran (NCBI). Cells were cultivated in a 1:1 mixture of Dulbeccos Modified Eagles Medium (DMEM), supplemented with 10% fetal bovine serum (FBS) and 1% penicillin-streptomycin solution. The cultured were humidified at atmosphere and fed 2-3 times a week until they approached confluence. Then, cell aggregates were treated with 0.25% trypsin-EDTA solutions. EDTA solutions mechanically were dispersed using a 10ml pipette. Trypsin activity was inhibited by adding growth medium and cells were centrifuged at 1000 rpm for 5min. Supernatant was removed and cell pellet was seeded into seven 50cm2- flasks. After 24h, both cells were incubated with different concentrations of the extract into the flasks. Cells were observed under light inverted microscope for shape, granulation and suspension from 24 to 72h.