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The usefulness of cyclic diamidines with different core-substituents as antitumor agents
Authors:Spychała Jarosław
Institution:Department of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland
Abstract:A series of related polycationic compounds has been screened for potential antitumor activity by the NCI’s in vitro testing (one dose primary anticancer assay and the NCI-60 full panel screening). The GI50 values of triazines 3 and 4 are on average 1.9 μM and 2.4 μM, respectively. Furan 8 deserves mention too (1.9 μM). The biological test results showed that carbazole 10 possessed cytotoxic activity in the nanomolar range, much better than the other compounds tested, only against several cancer cell lines: CCRF-CEM, HL-60(TB), MOLT-4, NCI-H522, COLO 205, SF-268, but the average GI50 value was higher (15 μM). The activity appears closely dependent on the core-shape and length of the bisimidazoline molecules (important for both high cytotoxicity and DNA binding). The mechanism of DNA minor-groove binding of diamidines 1-12, based on the anticancer parameters, is highly probable.
Keywords:Antitumor  Carbazoles  Fluorenes  Furans  Imidazolines  Piperidines  Pyrenes  Tetrahydropyrimidines  Triazines  Xylenes
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