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논문 기본 정보

자료유형
학술대회자료
저자정보
Bae, Yong-Soo (Department of Microbiology, Hannam University)
저널정보
대한약학회 대한약학회 학술대회 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
발행연도
2002.1
수록면
155 - 160 (6page)

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A series of modified oligonucleotides containing a phosphorothioate (P=S) backbone and a six-membered azasugar (6-AZS) as a sugar substitute in a nucleotide were synthesized and tested for their ability to inhibit the human immunodeficiency virus type I(HIV-l) in vitro without the aid of any transfecting agents. While P=S oligonucleotides with natural nucleotides had little anti-HIV-l activity, the six-membered azasugar nucleotide (6-AZN)-containing P=S oligonucleotides (AZPSONs) potently inhibited the HIV-l/SHIV replication and syncytium formation (ECso = 0.02-0.2 /lM) without cytotoxicity up to 100 /lM. DBM-2198, the most effective in anti-HIV-l activity among the AZPSONs, consists of random sequence and five 6¬AZNs evenly distributed in 18 nucleotides. DBM-2198 showed strong antiviral activity against, not only laboratory strains, but also primary isolates and even drug-resistant strains of HIV-I. DBM-2198 was much more effective than ddI or ddC in its anti-HIV-l activity in vitro. Particularly noteworthy is that the anti-HIV-l activity of DBM-2198 was better than that of AZT with respect to its long-lasting efficacy after a single treatment. Nevertheless, the antiviral activity of the AZPSONs was very specific to HIV-I. Poliovirus, or even simian immunodeficiency virus (SIV), was not inhibited by the AZPSONs. Taken together, our results strongly suggest that AZPSON can be used as a safe and effective AIDS-therapeutic drug against a broad spectrum of HIV -1 strains.

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