Discovery of Novel Allopurinol Derivatives with Anticancer Activity and Attenuated Xanthine Oxidase Inhibition
AbstractA series of pyrazolo[3,4-d]pyrimidine derivatives related to allopurinol has been synthesized and evaluated for its cytotoxicity against a panel of three cancer cell lines as well as its xanthine oxidase (XOD) inhibitory activities. Among them, compound 4 showed potent cytotoxicity with IC50 values of 25.5 and 35.2 μM against human hepatoma carcinoma cell lines, BEL-7402 and SMMC-7221, respectively. The anticancer activity of 4 was comparable to that of Tanespimycin (17-N-allylamino-17-demethoxy geldanamycin, 17-AAG) that inhibited the growth of BEL-7402 and SMMC-7221 cells at IC50 values of 12.4 and 9.85 μM, respectively. However, unlike allopurinol, which is also a strong inhibitor of XOD, compound 4 is a much weaker XOD inhibitor, suggesting that the anticancer activities of the allopurinol derivatives may not be associated with XOD inhibition. Moreover, the cytotoxicity of 4 toward normal cells is significantly lower than that of 17-AAG, making 4 a promising lead compound for further optimization of structure-activity relationships that may lead to anticancer agents of clinical utility. View Full-Text
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Li, Y.; Cao, T.-T.; Guo, S.; Zhong, Q.; Li, C.-H.; Li, Y.; Dong, L.; Zheng, S.; Wang, G.; Yin, S.-F. Discovery of Novel Allopurinol Derivatives with Anticancer Activity and Attenuated Xanthine Oxidase Inhibition. Molecules 2016, 21, 771.
Li Y, Cao T-T, Guo S, Zhong Q, Li C-H, Li Y, Dong L, Zheng S, Wang G, Yin S-F. Discovery of Novel Allopurinol Derivatives with Anticancer Activity and Attenuated Xanthine Oxidase Inhibition. Molecules. 2016; 21(6):771.Chicago/Turabian Style
Li, Yong; Cao, Ting-Ting; Guo, Shanchun; Zhong, Qiu; Li, Cai-Hu; Li, Ying; Dong, Lin; Zheng, Shilong; Wang, Guangdi; Yin, Shu-Fan. 2016. "Discovery of Novel Allopurinol Derivatives with Anticancer Activity and Attenuated Xanthine Oxidase Inhibition." Molecules 21, no. 6: 771.
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