Cytotoxic Effects of Furanosesterterpenes, Cyclitol Derivatives, and Bromotyrosine Derivative Isolated from Marine Sponges

  • Sohn, Jae-Hak (Division of Food and Nutrition, Silla University) ;
  • Oh, Hyun-Cheol (Division of Food and Nutrition, Silla University) ;
  • Jung, Jee-H. (College of Pharmacy, Pusan National University) ;
  • Bae, Song-Ja (Division of Food and Nutrition, Silla University)
  • Published : 2005.09.01


Marine sponges are known to produce a number of cytotoxic secondary metabolites. In the course of searching for cytotoxic metabolites from marine organisms, we have evaluated cytotoxic activities of six marine secondary metabolites isolated from various sponges. The cytotoxic compounds 1-6 were isolated by the application of various chromatographic methods, including column chromatography and HPLC. The molecular structures were mostly determined using mass spectrometry (MS) and Nuclear Magnetic Resonance (NMR) Spectroscopy. Furanosestererpenes (compounds 1-3) from Psammocinia sp., cyclitol derivatives (compounds 4 and 5) from Sarcotragus sp., and bromotyrosine-type compound (6) from an association of two sponges Jaspis wondoensis and Poecillastra wondoensis were evaluated for their cytotoxic activity against three cancer cell lines; Hep G2, HeLa, and MCF-7. All tested compounds exhibited cyctoxicity at concentrations ranging from $5\;\mug/mL\;to\;25\;\mug/mL.$ Particularly, among the tested compounds, compound 6 showed the highest potency displaying at least $80\%$ of cytotoxicity at $5\;\mug/mL$ level against all three cancer cell lines.


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