Bioactive bromotyrosine-derived alkaloids from the polynesian sponge suberea ianthelliformis

Amr El-Demerdash, Céline Moriou, Jordan Toullec, Marc Besson, Stéphanie Soulet, Nelly Schmitt, Sylvain Petek, David Lecchini, Cécile Debitus, Ali Al-Mourabit

    Research output: Contribution to journalArticlepeer-review

    19 Citations (Scopus)

    Abstract

    Herein, we describe the isolation and spectroscopic identification of eight new tetrabrominated tyrosine alkaloids 2–9 from the Polynesian sponge Suberea ianthelliformis, along with known major compound psammaplysene D (1), N,N-dimethyldibromotyramine, 5-hydroxy xanthenuric acid, and xanthenuric acid. Cytotoxicity and acetylcholinesterase inhibition activities were evaluated for some of the isolated metabolites. They exhibited moderate antiproliferative activity against KB cancer cell lines, but psammaplysene D (1) displayed substantial cytotoxicity as well as acetylcholinesterase inhibition with IC50 values of 0.7 µM and 1.3 µM, respectively.

    Original languageEnglish
    Article number146
    JournalMarine Drugs
    Volume16
    Issue number5
    DOIs
    Publication statusPublished - May 2018

    Keywords

    • Acetylcholinesterase inhibition
    • Brominated tyrosine alkaloids
    • Cytotoxicity
    • Suberea ianthelliformis

    Cite this