Background:
Monochasma savatieri, is a rare and endangered plant used to treat cancer in Chinese
traditional medicine.
Objective:
To evaluate the anti-cancer activity of M. savatieri aqueous extract by determining its cytotoxicity,
anti-migratory, and anti-adhesion effects on breast cancer cells.
objective:
To evaluate the anti-cancer activity of M. savatieri aqueous extract by determining its cytotoxicity, anti-migratory and anti-adhesion effects on breast cancer cells.
Methods:
Cell viability, migration, adhesion, circularity, and cell cycle were evaluated by crystal violet (CV)
staining, wound-healing, and transwell assays and flow cytometry in MCF7 and MDA-MB-231 cells. Caveolin-1,
snail, vimentin and activated Erk and Akt expression were determined by western blot in MDA-MB-231 cells.
Immunofluorescent assays confirmed caveolin-1 expression in MDA-MB-231 cells.
method:
Cell viability, migration, adhesion, circularity, and cell cycle were evaluated by crystal violet staining, wound-healing and transwell assays and flow cytometry in MCF7 and MDA-MB-231 cells. Caveolin-1, snail, vimentin and activated Erk and Akt expression were determined by western blot in MDA-MB-231 cells. Caveolin-1 expression in MDA-MB-231 cells was confirmed by immunofluorescent assays.
Results:
Survival and cell cycle of MCF7 and MDA-MB-231 cells were not modified by doses up to 500 μg/mL
of the extract. The extract inhibited cell migration and adhesion of MDA-MB-231 cells. When cells were exposed
to the extract, there was a slight decrease in protein expression of factors related to epithelial-to-mesenchymal
transition (snail and vimentin) and a strong decrease in the expression of the oncogenic membrane protein caveolin-
1. Furthermore, the levels of phosphorylated Erk and Akt were also decreased. The content of acteoside, a
phenylpropanoid glycoside with reported anti-cancer activity present in M. savatieri, was almost 5 times as much
as isoacteoside.
Conclusion:
M. savatieri possesses anti-cancer activity without exerting cytotoxicity on breast cancer cells. The
extract exhibited anti-migratory and anti-adhesion effects on breast cancer cells by regulating Erk and Akt signaling
pathways and the expression of caveolin-1. In addition, acteoside present in M. savatieri could be responsible
for the observed effects.
conclusion:
M. savatieri possesses anti-cancer activity without exerting cytotoxicity on breast cancer cells. The extract exerted anti-migratory and anti-adhesion effects on breast cancer cells by regulating Erk and Akt signaling pathways and the expression of caveolin-1. In addition, acteoside present in M. savatieri could be responsible for the observed effects.