Increasing antitumor activity in vivo by enhancing acridine dimer solubility with salt preparations
作者:Shan-Shue Wang、Yi-Jen Lee、Shih-Chung Hsu、Chen Hsieh、Lien-Shange Chang、Shan-Yen Chou
DOI:10.1007/s00044-009-9213-9
日期:2010.7
The potent activities of many anticancer agents have been demonstrated by in vitro assays. However, their poor solubility may result in diminishing anticancer activities in vivo. Previously, we synthesized a series of bisacridine derivatives shown to be potent in cytotoxicity and DNA intercalating activity in vitro. Initially, the compound 1, (N-(6-chloro-2-methoxy-acridin-9-yl)-N'-[3-(6-chloro-2-methoxy-acridin-9-ylamino)-propyl]-propane-1,3-diamine), is insoluble in polar solvent and does not reveal antihuman COLO 205 solid-tumor activity in vivo. To enhance its solubility, three salt forms (CH(3)COOH, CH(3)SO(3)H, and CF(3)COOH) of compound 1 were synthesized and their solubility was found to be greatly improved compared with that of the free base. Among these salts, the compound 1 center dot A (tris)acetate salt has shown good solubility in H(2)O and 2.5% Cremophor (v/v) and demonstrated anti-COLO205 solid-tumor activity in vivo.