Broad neutralizing antibody response and genetic variation in HIV-1 env genes in Koreans with primary HIV-1 infections

Broad neutralizing antibody response and genetic variation in HIV-1 env genes in Koreans with... To determine the neutralization profiles induced by HIV-1 Korean clade B, which has a monophyletic lineage and relative limited genetic diversity, we investigated the ability of HIV variants to elicit neutralizing antibodies in the immune response to primary infection. We selected seven Korean drug-naïve subjects with an HIV-1 primary infection and did pseudovirion-based neutralization assays using env genes of Korean HIV origin. The neutralizing antibody responses to the Korean clade B showed broad reactivity to subtype B but a highly subtype-specific pattern. The lengths of the amino acid sequences and the PNGS numbers in the V1-V5 region were positively correlated with neutralization. These results imply that the genetic characteristics of HIV-1 env may affect neutralizing antibody responses in HIV-1-infected individuals. This is the first report describing the relationship between neutralizing antibody responses and HIV-1 genetic characteristics in Korean subjects. It can be useful for developing AIDS vaccines against HIV-1 subtype B strains. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Broad neutralizing antibody response and genetic variation in HIV-1 env genes in Koreans with primary HIV-1 infections

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Publisher
Springer Vienna
Copyright
Copyright © 2011 by Springer-Verlag
Subject
Biomedicine; Virology ; Medical Microbiology ; Infectious Diseases
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-010-0870-2
Publisher site
See Article on Publisher Site

Abstract

To determine the neutralization profiles induced by HIV-1 Korean clade B, which has a monophyletic lineage and relative limited genetic diversity, we investigated the ability of HIV variants to elicit neutralizing antibodies in the immune response to primary infection. We selected seven Korean drug-naïve subjects with an HIV-1 primary infection and did pseudovirion-based neutralization assays using env genes of Korean HIV origin. The neutralizing antibody responses to the Korean clade B showed broad reactivity to subtype B but a highly subtype-specific pattern. The lengths of the amino acid sequences and the PNGS numbers in the V1-V5 region were positively correlated with neutralization. These results imply that the genetic characteristics of HIV-1 env may affect neutralizing antibody responses in HIV-1-infected individuals. This is the first report describing the relationship between neutralizing antibody responses and HIV-1 genetic characteristics in Korean subjects. It can be useful for developing AIDS vaccines against HIV-1 subtype B strains.

Journal

Archives of VirologySpringer Journals

Published: Mar 1, 2011

References

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