4-Pregnen-21-ol-3,20-dione-21-(4-bromobenzenesufonate) (NSC 88915) and Related Novel Steroid Derivatives as Tyrosyl-DNA Phosphodiesterase (Tdp1) Inhibitors
作者:Thomas S. Dexheimer、Lalji K. Gediya、Andrew G. Stephen、Iwona Weidlich、Smitha Antony、Christophe Marchand、Heidrun Interthal、Marc Nicklaus、Robert J. Fisher、Vincent C. Njar、Yves Pommier
DOI:10.1021/jm901061s
日期:2009.11.26
Tyrosyl-DNAphosphodiesterase 1 (Tdp1) is an enzyme that catalyzes the hydrolysis of 3'-phosphotyrosyl bonds. Such linkages form in vivo when topoisomerase I (Top1) processes DNA. For this reason, Tdp1 has been implicated in the repair of irreversible Top1-DNA covalent complexes. Tdp1inhibitors have been regarded as potential therapeutics in combination with Top1inhibitors, such as the camptothecin