CAS No.: 78821-43-9 Formula: C28H48O6
Weight: 480.677
Synonyms: Brassinolide; 24-Epibrassinolide; (3aS,5S,6R,7aR,7bS,9aS,10R,12aS,12bS)-10-[(2S,3R,4R,5S)-3,4-dihydroxy-5,6-dimethylheptan-2-yl]-5,6-dihydroxy-7a,9a-dimethylhexadecahydro-3H-benzo[c]indeno[5,4-e]oxepin-3-one; (3aS,5S,6R,7aR,7bS,9aS,10R,12aS,12bS)-10-[(2S,3R,4R,5R)-3,4-dihydroxy-5,6-dimethylheptan-2-yl]-5,6-dihydroxy-7a,9a-dimethylhexadecahydro-3H-benzo[c]indeno[5,4-e]oxepin-3-one; (3aS,5S,6R,7aR,7bS,9aS,12aS,12bS)-10-[(1S,2S,3R,4R)-2,3-dihydroxy-1,4,5-trimethylhexyl]-5,6-dihydroxy-7a,9a-dimethylhexadecahydro-3H-benzo[c]indeno[5,4-e]oxepin-3-one;
Epibrassinolide(EBR)isabiologicallyactivecompoundofthebrassinosteroids,steroid-derivedplantgrowthregulatorfamily.Cellsareincubatedwithvariousdoses(0-100μM)ofEpibrassinolidefor24or48handcellviabilityisdeterminedbyMTTassay.Epibrassinolideinducedcellviabilitylossindose-andtime-dependentmannercomparedtountreatedsamplesinLNCaPandDU145prostatecancercells.IncreasingconcentrationsofEpibrassinolideismoreeffectiveonLNCaPcChemicalbookellviabilitylossthanDU145cellssuggestingthatandrogen-dependentcellsaremoresensitivetoEpibrassinolidethanandrogen-independentprostatecancercells.Infurtherexperiments,25μMEpibrassinolideisselectedduetoitsmoderatecytotoxiceffectonbothcelllines.TheeffectofEpibrassinolidetreatmentisexaminedoncellproliferationbycountingthecellnumberwithin96h.AhigherandearlierinhibitionofcellproliferationisobservedinLNCaPthanDU145cells.