Overview of Ribonucleotide Reductase Inhibitors: An Appealing Target in Anti-Tumour Therapy
Authors: Cerqueira, Nuno M.F.S.A.; Pereira, Susana; Fernandes, Pedro A.; Ramos, Maria J.
Source: Current Medicinal Chemistry, Volume 12, Number 11, June 2005 , pp. 1283-1294(12)
Publisher: Bentham Science Publishers
Abstract:This review provides up-to-date information on the inhibition of ribonucleotide reductase (RNR), the enzyme that catalyses the reduction of ribonucleotides into deoxyribonucleotides. Taking in account that DNA replication and repair are essential mechanisms for cell integrity and are dependent on the availability of deoxyribonucleotides, many researchers are giving special attention to this enzyme, since it is an attractive target to treat several diseases of our time specially cancer. This investment has already given some benefits since some of these inhibitors show potent chemotherapeutic efficacy against a wide range of tumours such as non-small cell lung cancer, adenocarcinoma of pancreas, bladder cancer, leukaemia and some solid tumours. In fact a few of them have already been approved for the clinical treatment of some kinds of cancer.
All aspects of RNR inhibition and corresponding inhibitors are the subjects of this review. The inhibitors are divided in three main groups: translation inhibitors, which unable the formation of the enzyme; dimerization inhibitors that prevent the complexation of the two RNR subunits (R1 and R2); and catalytic inhibitors that inactivate subunit R1 and/or subunit R2, leading to RNR inactivity. In this last group special focus will be addressed to substrate analogues.
Document Type: Review Article
Affiliations: Requimte / Faculdade de Ciencias do Porto, Rua Campo Alegre, 687, 4169-007 Porto - Portugal.
Publication date: June 1, 2005
- Current Medicinal Chemistry covers all the latest and outstanding developments in medicinal chemistry and rational drug design. Each issue contains a series of timely in-depth reviews written by leaders in the field covering a range of the current topics in medicinal chemistry. Current Medicinal Chemistry is an essential journal for every medicinal chemist who wishes to be kept informed and up-to-date with the latest and most important developments.