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Gemcitabine: A Critical Nucleoside for Cancer Therapy

GESTO, D. S ; CERQUEIRA, N. M. F. S. A ; FERNANDES, P. A ; RAMOS, M. J

Current medicinal chemistry, 2012-03, Vol.19 (7), p.1076-1087 [Periódico revisado por pares]

Oak Park, IL: Bentham Science Publishers Ltd

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Título:
Gemcitabine: A Critical Nucleoside for Cancer Therapy
Autor: GESTO, D. S ; CERQUEIRA, N. M. F. S. A ; FERNANDES, P. A ; RAMOS, M. J
Assuntos: Antimetabolites, Antineoplastic - therapeutic use ; Antineoplastic agents ; Biological and medical sciences ; Catalytic Domain ; Cell Line, Tumor ; Deoxycytidine - analogs & derivatives ; Deoxycytidine - therapeutic use ; Deoxycytidine Kinase - antagonists & inhibitors ; Deoxycytidine Kinase - chemistry ; General aspects ; Humans ; Medical sciences ; Models, Molecular ; Neoplasms - drug therapy ; Nucleosides - chemistry ; Nucleosides - therapeutic use ; Pharmacology. Drug treatments ; Phosphorylation
É parte de: Current medicinal chemistry, 2012-03, Vol.19 (7), p.1076-1087
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-3
content type line 23
ObjectType-Review-1
Descrição: Gemcitabine (dFdC, 2,2-difluorodeoxycytidine) is a deoxycytidine nucleoside analogue of deoxycytidine in which two fluorine atoms have been inserted into the deoxyribose ring. Like other nucleoside analogues, gemcitabine is a prodrug. It is inactive in its original form, and depends on the intracellular machinery to gain pharmacological activity. What makes gemcitabine different from other nucleoside analogues is that it is actively transported across the cell membrane, it is phosphorylated more efficiently and it is eliminated at a slower rate. These differences, together with self-potentiation mechanisms, masked DNA chain termination and extensive inhibitory efficiency against several enzymes, are the source of gemcitabines cytotoxic activity against a wide variety of tumors. This unique combination of metabolic properties and mechanistic characteristics is only found in very few other anticancer drugs, and both the FDA and the EMEA have already approved its use for clinical purposes, for the treatment of several types of tumors. In spite of the promising results associated with gemcitabine, the knowledge of its mode of action and of the enzymes it interacts with is still not fully documented. In this article we propose to review all these aspects and summarize the path of gemcitabine inside the cell.
Editor: Oak Park, IL: Bentham Science Publishers Ltd
Idioma: Inglês

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Gemcitabine: A Critical Nucleoside for Cancer Therapy

GESTO, D. S ; CERQUEIRA, N. M. F. S. A ; FERNANDES, P. A ; RAMOS, M. J

Oak Park, IL: Bentham Science Publishers Ltd

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