A novel HIV-1 antiviral high throughput screening approach for the discovery of HIV-1 inhibitors
2005
Abstract Antiviral high throughput screens remain a viable option for identifying novel target inhibitors. However, few antiviral screens have been reduced to practice on an industrial scale. In this study, we describe an HIV-1 dual reporter assay that allows for the simultaneous evaluation of the potential antiviral activities and cytotoxicities of compounds in a high throughput screen (HTS) format. We validate the assay with known HIV-1 inhibitors and show that the antiviral and cytotoxic activities of compounds are reproducibly measured under screening conditions. In addition, we show that the assay exhibits parameters (e.g., signal-to-background ratios and Z ′ coefficients) suitable for high throughout screening. In a pilot screen, we demonstrate that non-specific or cytotoxic compounds represent a significant fraction of the hits identified in an antiviral screen and that these false positives are identified and deprioritized by the HIV-1 dual reporter assay at the primary screening step. We propose that the HIV-1 dual reporter assay represents a novel approach to HIV-1 antiviral screening that allows for the effective execution of industrial scale HTS campaigns with significantly greater returns on resource investment when compared to previous methods.
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