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- W2140830499 abstract "Human DNA topoisomerase IIα (htIIα) is a validated target for the development of anticancer agents. Based on structural data regarding the binding mode of AMP-PNP (5'-adenylyl-β,γ-imidodiphosphate) to htIIα, we designed a two-stage virtual screening campaign that combines structure-based pharmacophores and molecular docking. In the first stage, we identified several monosubstituted 9H-purine compounds and a novel class of 1H-pyrazolo[3,4]pyrimidines as inhibitors of htIIα. In the second stage, disubstituted analogues with improved cellular activities were discovered. Compounds from both classes were shown to inhibit htIIα-mediated DNA decatenation, and surface plasmon resonance (SPR) experiments confirmed binding of these two compounds on the htIIα ATPase domain. Proposed complexes and interaction patterns between both compounds and htIIα were further analyzed in molecular dynamics simulations. Two compounds identified in the second stage showed promising anticancer activities in hepatocellular carcinoma (HepG2) and breast cancer (MCF-7) cell lines. The discovered compounds are suitable starting points for further hit-to-lead development in anticancer drug discovery." @default.
- W2140830499 created "2016-06-24" @default.
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- W2140830499 date "2014-12-17" @default.
- W2140830499 modified "2023-10-16" @default.
- W2140830499 title "Discovery of Mono- and Disubstituted 1<i>H</i>-Pyrazolo[3,4]pyrimidines and 9<i>H</i>-Purines as Catalytic Inhibitors of Human DNA Topoisomerase IIα" @default.
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- W2140830499 doi "https://doi.org/10.1002/cmdc.201402459" @default.
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