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Prediction of HIV-1 Coreceptor Usage Tropism by Sequence Analysis using a Genotypic Approach
Published on: December 1, 2011
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Performance comparison of next-generation sequencing platforms for determining HIV-1 coreceptor use
Stéphanie Raymond1,2,3, Florence Nicot3, Nicolas Jeanne3
1INSERM, U1043, Toulouse, F-31300, France.
Scientific Reports
|February 11, 2017
Summary
Determining HIV-1 coreceptor tropism is crucial for effective antiretroviral therapy. The Illumina platform shows promise for detecting CXCR4-using variants, but requires optimization for accurate quantification in clinical settings.
Area of Science:
- Virology
- Infectious Diseases
- Molecular Diagnostics
Background:
- Accurate determination of HIV-1 coreceptor tropism (CCR5 or CXCR4) is essential for guiding antiretroviral drug selection, as CXCR4-using viruses predict treatment failure.
- HIV-1 tropism impacts disease progression and is vital for virological research.
- Next-generation sequencing (NGS) offers potential for tropism determination, but clinical validation of these technologies is ongoing.
Purpose of the Study:
- To evaluate the performance of Illumina MiSeq and Roche 454 GS-Junior NGS platforms for predicting HIV-1 tropism.
- To compare NGS-based tropism prediction with a reference phenotypic assay.
- To assess the ability of NGS to quantify CXCR4-using HIV-1 variants in clinical samples.
Main Methods:
- HIV-1 tropism prediction using genotypic analysis of the V3 region via Illumina MiSeq and Roche 454 GS-Junior NGS platforms.
- Comparison of NGS results against a gold-standard phenotypic tropism assay.
- Assessment of minor CXCR4-using variant detection and quantification in clinical specimens.
Main Results:
- Both Illumina MiSeq and Roche 454 GS-Junior platforms were utilized for HIV-1 tropism prediction from clinical samples.
- The Illumina platform demonstrated capability in detecting minor CXCR4-using variants.
- Technical improvements are necessary to enhance the quantification accuracy of the Illumina platform for CXCR4-using variants.
Conclusions:
- The Illumina platform is a viable tool for detecting minor CXCR4-using HIV-1 variants in clinical practice.
- Further technical optimization of the Illumina platform is required to improve the quantification of CXCR4-using variants.
- Accurate tropism determination remains critical for effective HIV-1 management and research.
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