O6-(4-bromothenyl)guanine (PaTrin-2), a novel inhibitor of O6-alkylguanine DNA alkyl-transferase, increases the inhibitory activity of temozolomide against human acute leukaemia cells in vitro.

Abstract

Anti-tumour activity of triazene compounds of clinical interest [i.e. dacarbazine and temozolomide (TMZ)] relies mainly on the generation of methyl adducts to purine bases of DNA. Two DNA repair enzyme systems, i.e. the O6-guanine-alkyl-transferase (MGMT) and mismatch repair (MMR), play a predominant role in conditioning the cytotoxic effects of triazenes… (More)

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