The alpha-glucosidase inhibitor N-butyldeoxynojirimycin inhibits human immunodeficiency virus entry at the level of post-CD4 binding
Open accessAbstract
The alpha-glucosidase inhibitor N-butyldeoxynojirimycin (NB-DNJ) is a potent inhibitor of human immunodeficiency virus (HIV) replication and syncytium formation in vitro. However, the exact mechanism of action of NB-DNJ remains to be determined. In this study we have examined the impairment of HIV infectivity mediated by NB-DNJ. By two independent HIV entry assays [PCR-based HIV entry assay and entry of Cocal(HIV) pseudotypes], the reduction in infectivity was found to be due to an impairment of viral entry. No effect of NB-DNJ treatment was seen on the kinetics of the interaction between gp120 and CD4 (surface plasmon resonance; BIAcore) or on the binding of virus particles to H9 cells (using radiolabeled virions). We therefore conclude that a major mechanism of action of NB-DNJ as an inhibitor of HIV replication is the impairment of viral entry at the level of post-CD4 binding, due to an effect on viral envelope components.
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Background
- Authors
- Fischer, P. B., Collin, M., Karlsson, G. B., James, W., Butters, T. D., Davis, S. J., Gordon, S., Dwek, R. A., & Platt, F. M.
- Affiliations
- University of Oxford (GB)
- Venue
- Journal of Virology
- Publisher
- American Society for Microbiology
- Published
- 1995-09
- Volume
- 69
- Issue
- 9
- Pages
- 5791-5797
- ISSN
- 0022-538X (ISSN-L)
- 1098-5514
- PMC
- PMC189444
- OpenAlex
- W2137535311
- Cited by
- 155
- References
- 43
- Citations by year
- 2026: 3 · 2025: 3 · 2024: 1 · 2023: 1 · 2022: 5 · 2021: 1 · 2020: 4 · 2019: 1 · 2018: 5 · 2017: 4 · 2016: 6 · 2015: 4 · 2014: 8 · 2013: 12 · 2012: 3
- FWCI
- 2.24
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Journal of Virology (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Hørslev-Fonden
- Wellcome Trust
- Medical Research Council
- Topics
- Life Sciences › Immunology and Microbiology › Virology › HIV Research and Treatment
- Health Sciences › Medicine › Infectious Diseases › HIV/AIDS drug development and treatment
- Physical Sciences › Chemistry › Organic Chemistry › Carbohydrate Chemistry and Synthesis
- Keywords
- N-butyldeoxynojirimycin, HIV entry inhibition, alpha-glucosidase inhibitors, viral envelope glycoprotein, HIV replication inhibition, syncytium formation, mechanism of action
- MeSH terms
- Antiviral Agents, Cell Line, Humans, Kinetics, Receptors, Virus, RNA-Directed DNA Polymerase, Time Factors, Virion, Virus Replication, HIV-1, HIV Envelope Protein gp120, CD4 Antigens, 1-Deoxynojirimycin, HIV Reverse Transcriptase, Glycoside Hydrolase Inhibitors
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