TY - JOUR A1 - Kreuter, Matthias-Heinrich A1 - Bernd, August A1 - Holzmann, Hans A1 - Müller-Klieser, Wolfgang A1 - Maidhof, Armin A1 - Weißmann, Norbert A1 - Kljajić, Zoran A1 - Batel, Renato A1 - Schröder, Heinz C. A1 - Müller, Werner E. G. T1 - Cytostatic activity of aeroplysinin-1 against lymphoma and epithelioma cells T2 - Zeitschrift für Naturforschung, C N2 - (±)-Aeroplysinin-1, an optically active 1.2-dihydroarene-1.2-diol. was isolated from the marine sponges Verongia aerophoba (+-isomer) and lanthella ardis (--isomer). For the experiments presented we used the +-isomer from Verongia aerophoba. Here we describe the hitherto unknown biological and pharmacological property of this compound to display pronounced anticancer activity against L5178y mouse lymphoma cells (ED50: 0.5 μm). Friend erythroleukemia cells (ED50: 0.7μm) , human mamma carcinoma cells (ED50: 0.3μm) and human colon carcinoma cells (ED50: 3.0 μm) in vitro. Furthermore, aeroplysinin caused a preferential inhibition of [3H]thymidine (dThd) incorporation rates in L5178y mouse lymphoma cells if compared with murine spleen lymphocytes in vitro. At concentrations between 1.1 and 28.5 μm, the [3H]dThd incorporation rates in L5178y cells were suppressed to 28% -0% but only to 78% -18% in murine spleen lymphocytes. The same differential effect in vitro was found with the following epithelial cells: 14.70 μm of the compound were required to inhibit normal human fibroblasts to 50% , but only 2.9 μm in the assays with human malign keratinocytes or malignant melanoma cells to observe the same inhibitory effect. Moreover, aeroplysinin-1 displayed antileukemic activity in vivo using the L5178y cell/NMRI mouse system; administered at a dose of 50 mg/kg for five consecutive days, the T/C (% ) value was determined to be 338. Preliminary toxicology studies revealed an acute LD50 of 202 mg/kg and a subacute LD50 of 150 mg/kg. Aeroplysinin-1 is neither a direct mutagen nor a premutagen in the umu/Salmonella typhimurium test system. KW - Aeroplysinin-1 KW - Lymphoma Cells KW - Epithelioma Cells Y1 - 2014 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/79905 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-799050 SN - 0939-5075 SN - 1865-7125 VL - 44.1989 IS - 7-8 SP - 680 EP - 688 PB - Verlag der Zeitschrift für Naturforschung CY - Tübingen ER -