TY - JOUR A1 - Sepčić, Kristina A1 - Kauferstein, Silke A1 - Mebs, Dietrich A1 - Turk, Tom T1 - Biological activities of aqueous and organic extracts from tropical marine sponges T2 - Marine drugs N2 - We report on screening tests of 66 extracts obtained from 35 marine sponge species from the Caribbean Sea (Curaçao) and from eight species from the Great Barrier Reef (Lizard Island). Extracts were prepared in aqueous and organic solvents and were tested for hemolytic, hemagglutinating, antibacterial and anti-acetylcholinesterase (AChE) activities, as well as their ability to inhibit or activate cell protein phosphatase 1 (PP1). The most interesting activities were obtained from extracts of Ircinia felix, Pandaros acanthifolium, Topsentia ophiraphidites, Verongula rigida and Neofibularia nolitangere. Aqueous and organic extracts of I. felix and V. rigida showed strong antibacterial activity. Topsentia aqueous and some organic extracts were strongly hemolytic, as were all organic extracts from I. felix. The strongest hemolytic activity was observed in aqueous extracts from P. acanthifolium. Organic extracts of N. nolitangere and I. felix inhibited PP1. The aqueous extract from Myrmekioderma styx possessed the strongest hemagglutinating activity, whilst AChE inhibiting activity was found only in a few sponges and was generally weak, except in the methanolic extract of T. ophiraphidites. KW - tropical marine sponges KW - hemolysis KW - hemagglutination KW - antibacterial activity KW - acetylcholinesterase (AChE) inhibition KW - protein phosphatase 1 (PP1) inhibition/activation Y1 - 2010 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/25310 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-253105 SN - 1660-3397 VL - 8.2010 IS - 5 SP - 1550 EP - 1566 PB - Molecular Diversity Preservation International (MDPI) CY - Basel ER -