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Synthesis and antiviral activity of 3'-azido-3'-deoxythymidine triphosphate distearoylglycerol: a novel phospholipid conjugate of the anti-HIV agent AZT. 1994

G M van Wijk, and K Y Hostetler, and E Kroneman, and D D Richman, and C N Sridhar, and R Kumar, and H van den Bosch
Centre for Biomembranes and Lipid Enzymology, Utrecht University, Netherlands.

Phospholipid conjugates of 3'-azido-3'-deoxythymidine (AZT) show activity against the human immunodeficiency virus (HIV) in vitro. In a previous report (K.Y. Hostetler, L.M. Stuhmiller, B.H.M. Lenting, H. van den Bosch and D.D. Richman (1991), J. Biol. Chem. 265, 6112-6117) the syntheses and anti-HIV activities of AZT mono- and diphosphate diglyceride have been described. We now report on the synthesis, characterization and biological activity of 3'-azido-3'-deoxythymidine triphosphate distearoylglycerol (AZTTP-DSG). The compound was prepared by the condensation of AZT diphosphate with distearoylphosphatidic acid morpholidate in anhydrous pyridine at room temperature and purified by means of high-performance liquid chromatography using a silica column. Characterization was performed with 31P-NMR and IR analyses and determination of the fatty acid, phosphorus and nucleoside content of the product. AZTTP-DSG inhibited HIV-1 replication in both CEM and HT4-6C cells at a level intermediate in potency between its mono- and diphosphate analogs. The IC50 values of AZTTP-DSG were 0.33 and 0.79 microM in these two cell lines, respectively. In addition, AZTTP-DSG was less toxic to CEM cells in vitro than the other AZT liponucleotides and reduced viable cell numbers in this cell type by 50% at 1000 microM. Initial studies on the metabolism of AZTTP-DSG revealed that both AZT and AZT monophosphate were liberated from the lipid pro-drug by a rat liver mitochondrial enzyme preparation. These phospholipid derivatives of AZT nucleotides represent pro-drugs for the intracellular delivery of phosphorylated antiviral nucleoside analogs.

UI MeSH Term Description Entries
D010712 Phosphatidic Acids Fatty acid derivatives of glycerophosphates. They are composed of glycerol bound in ester linkage with 1 mole of phosphoric acid at the terminal 3-hydroxyl group and with 2 moles of fatty acids at the other two hydroxyl groups. Ammonium Phosphatidate,Diacylglycerophosphates,Phosphatidic Acid,Acid, Phosphatidic,Acids, Phosphatidic,Phosphatidate, Ammonium
D006367 HeLa Cells The first continuously cultured human malignant CELL LINE, derived from the cervical carcinoma of Henrietta Lacks. These cells are used for, among other things, VIRUS CULTIVATION and PRECLINICAL DRUG EVALUATION assays. Cell, HeLa,Cells, HeLa,HeLa Cell
D006678 HIV Human immunodeficiency virus. A non-taxonomic and historical term referring to any of two species, specifically HIV-1 and/or HIV-2. Prior to 1986, this was called human T-lymphotropic virus type III/lymphadenopathy-associated virus (HTLV-III/LAV). From 1986-1990, it was an official species called HIV. Since 1991, HIV was no longer considered an official species name; the two species were designated HIV-1 and HIV-2. AIDS Virus,HTLV-III,Human Immunodeficiency Viruses,Human T-Cell Lymphotropic Virus Type III,Human T-Lymphotropic Virus Type III,LAV-HTLV-III,Lymphadenopathy-Associated Virus,Acquired Immune Deficiency Syndrome Virus,Acquired Immunodeficiency Syndrome Virus,Human Immunodeficiency Virus,Human T Cell Lymphotropic Virus Type III,Human T Lymphotropic Virus Type III,Human T-Cell Leukemia Virus Type III,Immunodeficiency Virus, Human,Immunodeficiency Viruses, Human,Virus, Human Immunodeficiency,Viruses, Human Immunodeficiency,AIDS Viruses,Human T Cell Leukemia Virus Type III,Lymphadenopathy Associated Virus,Lymphadenopathy-Associated Viruses,Virus, AIDS,Virus, Lymphadenopathy-Associated,Viruses, AIDS,Viruses, Lymphadenopathy-Associated
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000998 Antiviral Agents Agents used in the prophylaxis or therapy of VIRUS DISEASES. Some of the ways they may act include preventing viral replication by inhibiting viral DNA polymerase; binding to specific cell-surface receptors and inhibiting viral penetration or uncoating; inhibiting viral protein synthesis; or blocking late stages of virus assembly. Antiviral,Antiviral Agent,Antiviral Drug,Antivirals,Antiviral Drugs,Agent, Antiviral,Agents, Antiviral,Drug, Antiviral,Drugs, Antiviral
D015215 Zidovudine A dideoxynucleoside compound in which the 3'-hydroxy group on the sugar moiety has been replaced by an azido group. This modification prevents the formation of phosphodiester linkages which are needed for the completion of nucleic acid chains. The compound is a potent inhibitor of HIV replication, acting as a chain-terminator of viral DNA during reverse transcription. It improves immunologic function, partially reverses the HIV-induced neurological dysfunction, and improves certain other clinical abnormalities associated with AIDS. Its principal toxic effect is dose-dependent suppression of bone marrow, resulting in anemia and leukopenia. AZT (Antiviral),Azidothymidine,3'-Azido-2',3'-Dideoxythymidine,3'-Azido-3'-deoxythymidine,AZT Antiviral,AZT, Antiviral,BW A509U,BWA-509U,Retrovir,3' Azido 2',3' Dideoxythymidine,3' Azido 3' deoxythymidine,Antiviral AZT,BWA 509U,BWA509U
D015658 HIV Infections Includes the spectrum of human immunodeficiency virus infections that range from asymptomatic seropositivity, thru AIDS-related complex (ARC), to acquired immunodeficiency syndrome (AIDS). HTLV-III Infections,HTLV-III-LAV Infections,T-Lymphotropic Virus Type III Infections, Human,HIV Coinfection,Coinfection, HIV,Coinfections, HIV,HIV Coinfections,HIV Infection,HTLV III Infections,HTLV III LAV Infections,HTLV-III Infection,HTLV-III-LAV Infection,Infection, HIV,Infection, HTLV-III,Infection, HTLV-III-LAV,Infections, HIV,Infections, HTLV-III,Infections, HTLV-III-LAV,T Lymphotropic Virus Type III Infections, Human
D054306 Dideoxynucleotides The phosphate esters of DIDEOXYNUCLEOSIDES. Dideoxynucleotide Triphosphates,ddNTPs,Triphosphates, Dideoxynucleotide

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