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Lookup NU author(s): Professor barbara Durkacz
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We have investigated the effect of inhibitors of ADP-ribosyltransferase on the cytotoxicity of a range of S-phase acting drugs. Co-administration of 3 mM 3-aminobenzamide (3AB) potentiated the cytotoxicity of TG 2-fold, but had no effect on the cytotoxicity of HU, FdUrd or araC. Higher concentrations of benzamides (e.g. 10-20 mM 3AB) produced a G1-specific cell cycle blockade. This treatment prevented cells entering S-phase DNA synthesis and consequently protected against the cytotoxicity of the same S-phase acting drugs. Thus, using different treatment regimens with 3AB, it was possible to either potentiate or protect against the cytotoxicity of TG.
Author(s): Moses K, Harris AL, Durkacz BW
Publication type: Article
Publication status: Published
Journal: Biochemical Pharmacology
ISSN (print): 0006-2952
ISSN (electronic): 1873-2968
PubMed id: 3132171
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