What is the purpose of this in T-911, from what I read it looks like a anti-oxidant?
Evaluation of estrogenic/antiestrogenic activity of ellagic acid via the estrogen receptor subtypes ERalpha and ERbeta.
Papoutsi Z, Kassi E, Tsiapara A, Fokialakis N, Chrousos GP, Moutsatsou P.
Department of Biological Chemistry, Medical School, University of Athens Mikras Asias Str 75, Goudi, Athens 11527, Greece.
Ellagic acid is a plant-derived polyphenol, possessing antioxidant, antiproliferative, and antiatherogenic properties. Whether this compound has estrogenic/antiestrogenic activity, however, remains largely unknown. To answer this question, we first investigated the ability of ellagic acid to influence the activity of the estrogen receptor subtypes ERalpha and ERbeta in HeLa cells. Cells co-transfected with an estrogen response element (ERE)-driven luciferase (Luc) reporter gene and an ERalpha- or ERbeta-expression vector were exposed to graded concentrations of ellagic acid. At low concentrations (10(-7) to 10(-9) M), this compound displayed a small but significant estrogenic activity via ERalpha, whereas it was a complete estrogen antagonist via ERbeta. Further evaluation revealed that ellagic acid was a potent antiestrogen in MCF-7 breast cancer-derived cells, increasing, like the pure estrogen antagonist ICI182780, IGFBP-3 levels. Moreover, ellagic acid induced nodule mineralization in an osteoblastic cell line (KS483), an effect that was abolished by the estrogen antagonist. Endometrium-derived epithelial cells (Ishikawa) showed no response to the natural compound by using a cell viability assay (MTT). These findings suggest that ellagic acid may be a natural selective estrogen receptor modulator (SERM).
Research Support, Non-U.S. Gov't
PMID: 16190622 [PubMed - indexed for MEDLINE]
Display SummaryBriefAbstractAbstractPl usCitationMEDLINEXMLUI ListLinkOutASN.1Related ArticlesCited in BooksCancerChrom LinksDomain Links3D Domain LinksdbGaP LinksGEO DataSet LinksGene LinksGene (OMIM) LinksGene (GeneRIF) LinksGenome LinksProject LinksGENSAT LinksGEO Profile LinksHomoloGene LinksNucleotide LinksNucleotide (RefSeq) LinksNucleotide (Weighted) LinksEST LinksEST (RefSeq) LinksGSS LinksGSS (RefSeq) LinksOMIA LinksOMIM (calculated) LinksOMIM (cited) LinksBioAssay LinksCompound LinksCompound (MeSH Keyword)Compound (Publisher) LinksSubstance LinksSubstance (MeSH Keyword)Substance (Publisher) LinksPMC LinksCited in PMCPopSet LinksProbe LinksProtein LinksProtein (RefSeq) LinksProtein (Weighted) LinksProtein Cluster LinksCited ArticlesSNP LinksSNP (Cited)SRA LinksStructure LinksTaxonomy via GenBankUniGene LinksUniSTS Links Show 5102050100200500Sort ByPub DateFirst AuthorLast AuthorJournalTitleSend toTextFilePrinterClipboardColl ectionsE-mailOrder
Like Resveratrol, it is a natural SERM. Also, being extracted from raspberries it has anti oxidant properties (as does resveratrol).