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The document discusses the molecular mysteries of the Madagascar periwinkle plant, which has been used in folk remedies around the world and contains alkaloids that have been developed into chemotherapy drugs. Specifically, it notes that the plant's vinblastine, vincristine, vindesine, and vinorelbine alkaloids inhibit mitosis and have been used to treat cancers like Hodgkin's disease, leukemia, lymphomas, melanoma, and lung and uterine cancers.Read less