Manzamine compounds have been discovered to decrease cell dissociation and cell migration associated with the metastatic potential of cancer cells and a restoration of cancer cell susceptibility to agents, such as TRAIL, which can induce apoptosis. Specifically, Manzamine A has a formerly unrecognized utility in both blocking tumor cell invasion and tumor metastasis as well in restoring cancer cell susceptibility to standard chemotherapeutic agents which induce apoptosis and, therefore, has utility in treating cancer.
