%A Zhi-hong Yu, Pin-kang Wei, Ling Xu, Zhi-feng Qin, Jun Shi, Yan Xiao, Hui-ming Lin %T Effects of Jinlongshe Granules on apoptosis of MKN-45 human gastric cancer cells orthotopically transplanted in nude mice %0 Journal Article %D 2006 %J Journal of Integrative Medicine %R 10.3736/jcim20060311 %P 275-280 %V 4 %N 3 %U {http://www.jcimjournal.com/CN/abstract/article_1416.shtml} %8 2006-05-31 %X

Objective

To assess the effects of Jinlongshe Granules (JLSG) on tumor growth of gastric carcinoma.

Methods

Fifty nude mice orthotopically transplanted with MKN-45 human gastric cancer cells were divided into five groups: untreated group, 5-fluorouracil (5-FU)-treated group and high-, medium-, and low-dose JLSG-treated groups. Corresponding antitumor drugs were administered in each group except the untreated group. The antitumor effects in vivo were evaluated. Cell cycle distribution and apoptosis of MKN-45 human gastric cancer cells were determined by using flow cytometry (FCM) and Annexin V-fluorescein isothiocyanate/propidium iodide (Annexin V-FITC/PI) staining assay. The ultrastructure of MKN-45 gastric cancer cells was observed by transmission electron microscope.

Results

In the mice treated with high-, medium-, and low-dose JLSG, the growth inhibition rates of gastric cancer were 68.13%, 55.94% and 50.31% respectively, and this antitumor effect was dose-dependent. In the mice treated with intraperitoneal injection of 5-FU, the growth inhibition rate of gastric cancer was 53.43% and not much different from those treated with JLSG. The apoptotic rates in the high-, medium-, and low-dose JLSG-treated groups were 22.81%, 28.27% and 38.54% respectively, in a dose-dependent manner, with the cell cycle arrested at G0/G1 phase. An Annexin V-FITC/PI staining assay revealed that the percentages of early apoptotic cells in the three dose JLSG-treated groups were all significantly higher than that in the 5-FU-treated group, whereas the late apoptotic and necrotic cells were much more in the 5-FU-treated group than those in the three dose JLSG-treated groups.

Conclusion

Jinlongshe Granules exert an inhibiting effect on MKN-45 human gastric cancer cells orthotopically transplanted in nude mice by promoting the cell apoptosis.