This invention provides a method for treating cancer by blocking the migration, metastasis of cancer cells, growth of cancers wherein the cancers comprise breast cancer, leukocyte cancer, liver cancer, ovarian cancer, bladder cancer, prostate cancer, skin cancer, bone cancer, brain cancer, leukemia cancer, lung cancer, colon cancer, CNS cancer, melanoma cancer, renal cancer or cervix cancer. This invention provides uses of compositions comprising a triterpenoidal saponin, triterpenoid, triterpenoidal compound or sapongenin, comprising at least two side groups selected from the group consisting of angeloyl groups, tigloyl groups and senecioyl groups, wherein the side groups are attached to carbon 21, 22 or/and 28 of triterpenoidal sapogenin, triterpenoid, triterpenoidal compound or other sapongenin backbones.
