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胸苷和尿苷对人单核细胞中3'-叠氮-3'-脱氧胸苷(齐多夫定)磷酸化的影响。

Effects of thymidine and uridine on the phosphorylation of 3'-azido-3'-deoxythymidine (zidovudine) in human mononuclear cells.

作者信息

Szebeni J, Patel S S, Hung K, Wahl L M, Weinstein J N

机构信息

National Cancer Institute, Bethesda, Maryland 20892.

出版信息

Antimicrob Agents Chemother. 1991 Jan;35(1):198-200. doi: 10.1128/AAC.35.1.198.

Abstract

The effects of thymidine and uridine on the phosphorylation of 3'-azido-3'-deoxythymidine (AZT) were studied in various human mononuclear cell preparations. Thymidine suppressed [3H]AZT phosphorylation in the same concentration range (20 to 100 microM) in which it antagonizes the anti-human immunodeficiency virus activity of AZT. Uridine, in turn, had no influence on AZT phosphorylation, just as it has no effect on the anti-human immunodeficiency virus activity of AZT. These findings are consistent with a close relationship between the inhibition of AZT phosphorylation and the influence of physiological nucleosides on the antiviral activity of AZT.

摘要

在多种人类单核细胞制剂中研究了胸苷和尿苷对3'-叠氮-3'-脱氧胸苷(AZT)磷酸化的影响。胸苷在20至100微摩尔的相同浓度范围内抑制[3H]AZT磷酸化,在此浓度范围内它拮抗AZT的抗人类免疫缺陷病毒活性。相反,尿苷对AZT磷酸化没有影响,就像它对AZT的抗人类免疫缺陷病毒活性没有影响一样。这些发现与AZT磷酸化的抑制和生理核苷对AZT抗病毒活性的影响之间的密切关系是一致的。

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