A heteroduplex assay for the rapid detection of dual Human Immunodeficiency Virus Type 1 infections.

A heteroduplex assay for the rapid detection of dual Human Immunodeficiency Virus Type 1 infections. Research Abstract Details 

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A heteroduplex assay for the rapid detection of dual Human Immunodeficiency Virus Type 1 infections. Abstract Text:

The predominance of circulating and unique recombinant forms (URFs) of Human Immunodeficiency Virus Type 1 (HIV-1) in Cameroon suggests that dual infection occurs frequently in this region. Despite the potential impact of these infections on the evolution of HIV diversity, relatively few have been detected. The failure to detect dual infections may be attributable to the laborious and costly sequence analysis involved in their identification. As such, there is a need for a cost-effective, more rapid method to efficiently distinguish this subset of HIV-positive individuals, particularly in regions where HIV diversity is broad. In the present study, the heteroduplex assay (HDA) was developed to detect dual HIV-1 infection. This assay was validated on sequential specimens obtained from 20 HIV+ study subjects, whose single or dual infection status was determined by standard sequence analysis. By mixing gag fragments amplified from the sequential specimens from each study subject in HDA reactions, it was shown that single and dual infection status correlated with the absence and presence, respectively, of heteroduplex bands upon gel electrophoresis. Therefore, this novel assay is capable of identifying dual infections with a sensitivity and specificity equivalent to that of sequence analysis. Given the impact of dual infection on viral recombination and diversity, this simple technique will be beneficial to understanding HIV-1 evolution within an individual, as well as at a population level, in West-Central Africa and globally.

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A heteroduplex assay for the rapid detection of dual Human Immunodeficiency Virus Type 1 infections. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of virological methods

VOLUME: 149

Page Numbers: 20-7

Journal Abbreviation: J. Virol. Methods

ISSN: 0166-0934

DAY: 7

MONTH: 03

YEAR: 2008

A heteroduplex assay for the rapid detection of dual Human Immunodeficiency Virus Type 1 infections. Information

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LANGUAGE: eng

NlmUniqueID: 8005839

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Grant and Affiliation Information for A heteroduplex assay for the rapid detection of dual Human Immunodeficiency Virus Type 1 infections.

AFFILIATION: Department of Microbiology, New York University School of Medicine, New York, NY, United States.

Country: Netherlands

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MEDLINETA: J Virol Methods

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A heteroduplex assay for the rapid detection of dual Human Immunodeficiency Virus Type 1 infections Related Publications

• A heteroduplex assay for the rapid detection of dual Human Immunodeficiency Virus Type 1 infections.
• Circulating recombinant form (CRF) 37_cpx: an old strain in Cameroon composed of diverse, genetically distant lineages of subtypes A and G.
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• Quasispecies analysis of novel HIV-1 recombinants of subtypes A and G reveals no similarity to the mosaic structure of CRF02_AG.
• Utility of the Heteroduplex Assay (HDA) as a Simple and Cost-Effective Tool for the Identification of HIV Type 1 Dual Infections in Resource-Limited Settings.