Phytochemical Name : Dioscorealide B

Properties Information
PhytoCAT-ID PhytoCAT-249
Phytochemical name or plant extracts Dioscorealide B
PMID 21299121
Literature evidence Taken together, the results of this study provide evidence that dioscorealide B possesses an antitumor property against human breast cancer cells and thus provide the molecular basis for the further development of dioscorealide B as a novel chemotherapeutic agent for breast cancer treatment.
IUPAC name (6S)-6-hydroxy-5,10-dimethoxy-3,7-dioxatetracyclo[6.6.2.04,15.012,16]hexadeca-1(15),4,8(16),9,11,13-hexaen-2-one
Phytochemicals’ class or type of plant extracts Macrocyclic lactone
Source of phytochemicals or plant Extracts Dioscorea membranacea
Geographical availability Cambodia, Laos, Malaya, Myanmar, Thailand, Vietnam
Plant parts Rhizome
Other cancers Breast cancer
Target gene or protein Bax, Bak, Bcl-2, Caspase 8, Caspase 9, Caspase 7
Gene or Protein evidence After treatment with 3 microM dioscorealide B, acceleration of the level of proapoptotic proteins Bax and Bak were observed at 6 hours and 12 hours, respectively, while the decrease in the expression of antiapoptotic protein Bcl-2 was observed 3 hours after the treatment. These effects of dioscorealide B might result in the activation of caspase-8, -9 and -7, which lead to apoptosis in MCF-7 cells.
Target pathways p53 and the intrinsic apoptotic pathway.
IC50 2.76 µM against MCF-7 9.93 µM against MDA-MB-468
Potency Dioscorealide B-induced apoptosis was associated with modulation of the multidomain Bcl-2 family members Bax, Bak and Bcl-2.
Cell line/ mice model NA
Additional information  NA
PubChem ID 11044777
Additional PMIDs 21294426 21299121
Additional sources of information https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:318257-1
Safety NA