Cytotoxic activity of proflavine diureas: Synthesis, antitumor, evaluation and DNA binding properties of 1′,1″-(acridin-3,6-diyl)-3′,3″-dialkyldiureas
作者:Mária Kožurková、Danica Sabolová、Ladislav Janovec、Jaromír Mikeš、Ján Koval’、Ján Ungvarský、Miroslava Štefanišinová、Peter Fedoročko、Pavol Kristian、Ján Imrich
DOI:10.1016/j.bmc.2008.01.026
日期:2008.4.1
The synthesis of novel 1',1 ''-(acridin-3,6-diyl)-3',3 ''-dialkyldiureas was reported. Their biological activity to inhibit cell proliferation was assessed by a MTT assay on two cell lines, HeLa and HCT-116, at micromolar concentration. 1',1 ''-(Acridin-3,6- diyl)-3',3 ''-dihexyldiurea hydrochloride was active on a HCT-116 cell line with an IC50 value of 3.1 mu M. The interaction of these compounds with calf thymus DNA was investigated by a variety of spectroscopic techniques including UV-vis, fluorescence and CD spectroscopy. From spectrofluorimetric titrations, binding constants for the DNA-drug complexes were determined (K = 0.9-4.2 x 10(5) M-1). Antiproliferative activity of synthesized derivatives might be related to their intercalation into DNA. (C) 2008 Elsevier Ltd. All rights reserved.