Antisense phosphorothioate oligodeoxynucleotides targeted to the vpr gene inhibit human immunodeficiency virus type 1 replication in primary human macrophages
| Autor: | Paolo Lusso, Richard W. Crowley, Genoveffa Franchini, Robert C. Gallo, C Balotta |
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| Rok vydání: | 1993 |
| Předmět: |
Cell Survival
Genes vpr viruses Molecular Sequence Data Immunology In Vitro Techniques Biology Virus Replication Microbiology Virus Viral envelope Virology Humans Macrophage Amino Acid Sequence Gene Regulator gene Messenger RNA Phosphorothioate Oligonucleotides Base Sequence Macrophages virus diseases Oligonucleotides Antisense Thionucleotides Molecular biology Viral replication Insect Science HIV-1 Research Article |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 1098-5514 0022-538X |
| DOI: | 10.1128/jvi.67.7.4409-4414.1993 |
| Popis: | The replication of human immunodeficiency viruses (HIV) in human macrophages is influenced by genetic determinants which have been mapped predominantly to the viral envelope. However, in HIV-2, the vpr gene has also been suggested as an important modulator of viral expression in human macrophages. We synthesized five antisense phosphorothioate oligodeoxynucleotides complementary to the vpr mRNA of HIV-1Ba-L, a highly macrophage-tropic viral strain, and measured their effect on HIV-1Ba-L replication in primary human macrophages. All of the oligodeoxynucleotides displayed some level of non-sequence-specific inhibition of viral replication; however, only the antisense one had an additional effect on viral production in primary macrophages. Of the five antisense oligodeoxynucleotides tested, only one did not show any additional effect on viral production, whereas all the others inhibited viral replication to a similar degree (70 to 100%). Variation in the degree of inhibition was observed by using five different donors of human primary macrophages. The phosphorothioate oligonucleotides, targeted to the initiating methionine of the Vpr protein, had an inhibitory effect at both 20 and 10 microM only when the size was increased from 24 to 27 bases. Thus, HIV-1 replication in human macrophages is modulated by the expression of the vpr gene, and it is conceivable that vpr antisense oligodeoxynucleotides could be used in combination with antisense oligodeoxynucleotides against other HIV-1 regulatory genes to better control viral expression in human macrophages. |
| Databáze: | OpenAIRE |
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