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Updated: May 15, 2026

A Fish-feeding Laboratory Bioassay to Assess the Antipredatory Activity of Secondary Metabolites from the Tissues of Marine Organisms
Published on: January 11, 2015
Aaptamine derivatives from the Indonesian sponge Aaptos suberitoides
Cong-Dat Pham1, Rudolf Hartmann, Werner E G Müller
1Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine University, Universitaetsstrasse 1, 40225 Duesseldorf, Germany.
Four new aaptamine derivatives were isolated from the Indonesian sponge Aaptos suberitoides. Some compounds, including aaptamine, demonstrated significant cytotoxic activity against lymphoma cells.
Area of Science:
- Marine natural products chemistry
- Pharmacology
- Chemical biology
Background:
- Marine sponges are a rich source of bioactive compounds.
- Aaptos suberitoides is known to produce aaptamine-type alkaloids.
- Exploring marine biodiversity for novel therapeutic agents is crucial.
Purpose of the Study:
- To isolate and characterize new aaptamine derivatives from Aaptos suberitoides.
- To evaluate the cytotoxic potential of isolated compounds against cancer cell lines.
Main Methods:
- Ethanol extraction of the sponge Aaptos suberitoides.
- Structure elucidation using one- and two-dimensional Nuclear Magnetic Resonance (NMR) spectroscopy.
- High-Resolution Electrospray Ionization Mass Spectrometry (HRESIMS) for structural confirmation.
- Cytotoxicity assays using the murine lymphoma L5178Y cell line.
Main Results:
- Four new aaptamine derivatives (compounds 1-4) were isolated, along with known compounds aaptamine (5) and related compounds (6-8).
- The structures were confirmed through comprehensive spectroscopic analyses (NMR, HRESIMS).
- Compounds 3, 5, and 6 exhibited cytotoxic activity, with IC(50) values between 0.9 and 8.3 μM against L5178Y cells.
Conclusions:
- The study successfully identified novel aaptamine derivatives from an Indonesian marine sponge.
- Aaptamine and its derivatives show promising cytotoxic effects, warranting further investigation as potential anti-cancer leads.
- This research highlights the potential of marine natural products in drug discovery.
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