Phytochemical Name : Cucurbitacin B

Properties Information
PhytoCAT-ID PhytoCAT-200
Phytochemical name or plant extracts Cucurbitacin B
PMID 21866566
Literature evidence Our data suggest that cucurbitacin B may in part induce apoptosis and exert growth inhibitory effect via interruption the Wnt signaling.
IUPAC name [(E,6R)-6-[(2S,8S,9R,10R,13R,14S,16R,17R)-2,16-dihydroxy-4,4,9,13,14-pentamethyl-3,11-dioxo-2,7,8,10,12,15,16,17-octahydro-1H-cyclopenta[a]phenanthren-17-yl]-6-hydroxy-2-methyl-5-oxohept-3-en-2-yl] acetate
Phytochemicals’ class or type of plant extracts Triterpenoid
Source of phytochemicals or plant Extracts Trichosanthes cucumerina
Geographical availability Assam, Bangladesh, Cambodia, China South-Central, China Southeast, East Himalaya, India, Jawa, Laccadive Is., Lesser Sunda Is., Maldives, Myanmar, Nepal, Northern Territory, Pakistan, Philippines, Queensland, Sri Lanka, Sulawesi, Thailand, Vietnam, West Himalaya, Western Australia
Plant parts NA
Other cancers Breast cancer
Target gene or protein Cyclin D1, C-myc, β-catenin, F-actin, Vimentin, FAK, vinculin
Gene or Protein evidence Cyclin D1, c-Myc and β-catenin expression levels were reduced. Western blot analysis showed increased PARP cleavage and decreased Wnt-associated signaling molecules β-catenin, galectin-3, cyclin D1 and c-Myc, and corresponding changes in phosphorylated GSK-3β levels. Further studies have found that CuB downregulated the expression of F-actin/vimentin/FAK/vinculin in breast cancer cells, altering the distribution and reorganization of cytoskeletal proteins in the cells.
Target pathways RAC1/CDC42/RhoA signaling Wnt signaling pathway
IC50 4.60 µg/ml against SKBR-3 88.75 µg/ml against MCF-7
Potency In summary, our data indicate that cucurbitacin B targeting of the Wnt signaling pathway could be an innovative approach for breast cancer treatment.
Cell line/ mice model SKBR-3, MCF-7
Additional information  NA
PubChem ID 5281316
Additional PMIDs 23062075 30548720 29425586 26018422
Additional sources of information https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:294175-1
Safety acute toxic in pubchem database