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Synthesis and cytotoxicity of the conjugates of diterpenoid isosteviol and N-acetyl-D-glucosamine.

Bulat F GarifullinIrina Yu StrobykinaLeysan R KhabibulinaAnastasiya S SapunovaAleksandra D VoloshinaRadmila R SharipovaBulat I KhairutdinovYuriy F ZuevVladimir E Kataev
Published in: Natural product research (2019)
A series of conjugates of diterpenoid isosteviol (16-oxo-ent-beyeran-19-oic acid) and N-acetyl-D-glucosamine was synthesised and their cytotoxicity against several human cancer cell lines (M-Hela, MCF-7, Hep G2, Panc-1, PC-3), as well as normal human cell lines (WI-38, Chang liver) was assayed. Most of the conjugates were found to be cytotoxic against the mentioned cancer cell lines in the range of IC50 values 13-89 µM. Two lead compounds 14a and 14b showed selective cytotoxicity against M-Hela (IC50 13 and 14 µM) that was two times as high as the cytotoxicity of the anti-cancer drug Tamoxifen in control (IC50 28 µM). It was found that cytotoxic activity of the lead compounds against M-Hela cells is due to induction of apoptosis.
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