HIV-2 Protease Resistance in Yeast Cells
Author Information
Author(s): M'Barek Najoua Ben, Audoly Gilles, Raoult Didier, Gluschankof Pablo
Primary Institution: Unité des Rickettsies, Faculté de Médecine, Marseille, France
Hypothesis
Can specific mutations in the HIV-2 protease be defined to understand resistance to protease inhibitors?
Conclusion
The study identified that the L90M mutation in HIV-2 protease affects susceptibility to Saquinavir but not Lopinavir.
Supporting Evidence
- The HIV-2 protease activity was shown to kill yeast cells, which could be inhibited by protease inhibitors.
- IC50 values for Lopinavir and Saquinavir were determined for HIV-2 proteases from infected individuals.
- The study established a novel yeast-based assay to evaluate protease inhibitor susceptibility.
Takeaway
Scientists studied how HIV-2 can become resistant to certain medicines by testing it in yeast cells. They found a specific change in the virus that makes it harder to treat.
Methodology
The study used yeast cells to express HIV-2 protease and measured the effect of protease inhibitors on cell growth to determine susceptibility.
Limitations
The study's findings may not fully translate to human patients due to differences between yeast and human cells.
Participant Demographics
Participants included 7 HIV-2 infected individuals, some experiencing treatment failure.
Digital Object Identifier (DOI)
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