A Simple Screening System for Anti-HIV Drugs: Syncytium Formation Assay Using T-Cell Line Tropic and Macrophage Tropic HIV env Expressing Cell Lines. Establishment and Validation.
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- CHIBA HARUMI
- School of Pharmaceutical Sciences, Kitasato University
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- ASANUMA SATOSHI
- School of Pharmaceutical Sciences, Kitasato University
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- OKAMOTO MEGUMI
- School of Pharmaceutical Sciences, Kitasato University
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- INOKOSHI JUNJI
- School of Pharmaceutical Sciences, Kitasato University
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- TANAKA HARUO
- School of Pharmaceutical Sciences, Kitasato University
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- FUJITA KAZUNOBU
- Showa University, School of Medicine
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- OMURA SATOSHI
- Kitasato Institute for Life Sciences, Kitasato University
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Abstract
The first step in cellular entry of HIV involves binding of the viral envelope glycoprotein complex (gp120/gp41) to specific receptor molecules on the target cells. The cell-cell fusion (syncytium formation) between env expressing cells and CD4+ cells mimics the viral infection of the host cells. To search for anti-HIV substances preventing this process, we constructed the recombinant cell lines, HeLa/CD4/Lac-Z and HeLa/T-env/Tat for T-cell tropic (HIV-1NL4-3) system, and HOS/CD4/CCR5/Lac-Z and HeLa/M-env/Tat for macrophage tropic (HIV-1SF162) system. When each pair of cells were co-incubated for 20 hours, the multinuclear giant cells (syncytia) were formed and β-galactosidase was expressed. These systems are less biohazardous because no infectious virus particles are used. Their validity in screening for anti-HIV substances which inhibit syncytium formation was confirmed using various known HIV entry inhibitors.
Journal
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- The Journal of Antibiotics
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The Journal of Antibiotics 54 (10), 818-826, 2001
JAPAN ANTIBIOTICS RESEARCH ASSOCIATION
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Details 詳細情報について
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- CRID
- 1390001204149681536
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- NII Article ID
- 130003503824
- 10008471129
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- NII Book ID
- AA0069330X
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- COI
- 1:CAS:528:DC%2BD3MXnvF2gs7c%3D
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- ISSN
- 18811469
- 00218820
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- PubMed
- 11776437
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- PubMed
- CiNii Articles
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- Abstract License Flag
- Disallowed