Synthesis, in Vitro Anti-Breast Cancer Activity, and Intracellular Decomposition of Amino Acid Methyl Ester and Alkyl Amide Phosphoramidate Monoesters of 3‘-Azido-3‘-deoxythymidine (AZT)
摘要:
We report the synthesis and anticancer activity of a series of AZT phosphoramidate monoesters containing amino acid methyl ester (3a-11a) and N-alkyl amide (3b-11b, 9c-9f) moieties. The aromatic amino acid methyl esters were found to be more cytotoxic than the aliphatic analogues toward MCF-7 cells (human pleural effusion breast adenocarcinoma cell line). A marked stereochemical preference for the L-amino acid stereochemistry was also observed in MCF-7 cells. There was no consistent enhancement of cytotoxicity of the methyl amides over the corresponding methyl esters. AZT and the two AZT aromatic amino acid methyl ester phosphoramidates 8a and 9a were found to be more cytotoxic toward MCF-7 cells than to CEM cells (human T-cell lymphoblastic leukemia). The selective cytotoxicity toward MCF-7 cells may be associated with greater intracellular levels of phosphoramidate monoester and/or phosphorylated AZT.
One aspect of the invention relates to isoform-selective HDAC inhibitors. Also provided are methods of sensitizing a cancer cell to the cytotoxic effects of radiotherapy. The invention also provides methods for treating cancer, methods for treating neurological diseases and methods for treating malaria. Additionally, the invention provides pharmaceutical compositions comprising an HDAC inhibitor of the invention; and kits comprising a an HDAC inhibitor of the invention.
[EN] NUCLEOSIDES WITH ANTIVIRAL AND ANTICANCER ACTIVITY<br/>[FR] NUCLEOSIDES PRESENTANT UNE ACTIVITE ANTIVIRALE ET ANTICANCEREUSE
申请人:REGENTS OF THE UNIVERSITY OF MINNESOTA
公开号:WO1999049873A1
公开(公告)日:1999-10-07
(EN) The invention provides nucleosides of formulae (I), (II), (V) and (VII) as described in the specification which possess antiviral and anticancer activity. Treatment of breast cancer is a preferred embodiment.(FR) L'invention concerne des nucléosides représentés par les formules(I), (II), (V) et (VII) décrites dans la description, qui possèdent une activité antivirale et anticancéreuse. Le traitement de cancer du sein constitue un mode de réalisation préféré.