Identification of immunodominant CD4-restricted epitopes co-located with antibody binding sites in individuals vaccinated with ALVAC-HIV and AIDSVAX B/E.

We performed fine epitope mapping of the CD4+ responses in the ALVAC-HIV-AIDSVAX B/E prime-boost regimen in the Thai Phase III trial (RV144). Non-transformed Env-specific T cell lines established from RV144 vaccinees were used to determine the fine epitope mapping of the V2 and C1 responses and the...

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Main Authors: Silvia Ratto-Kim, Mark S de Souza, Jeffrey R Currier, Nicos Karasavvas, John Sidney, Morgane Rolland, Anais Valencia-Micolta, Sirinan Madnote, Alessandro Sette, Sorachai Nitayaphan, Punnee Pitisuttuthum, Jaranit Kaewkungwal, Supachai Rerks-Ngarm, Robert O'Connell, Nelson Michael, Merlin L Robb, Mary Marovich, Jerome H Kim
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4321833?pdf=render
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author Silvia Ratto-Kim
Mark S de Souza
Jeffrey R Currier
Nicos Karasavvas
John Sidney
Morgane Rolland
Anais Valencia-Micolta
Sirinan Madnote
Alessandro Sette
Sorachai Nitayaphan
Punnee Pitisuttuthum
Jaranit Kaewkungwal
Supachai Rerks-Ngarm
Robert O'Connell
Nelson Michael
Merlin L Robb
Mary Marovich
Jerome H Kim
author_facet Silvia Ratto-Kim
Mark S de Souza
Jeffrey R Currier
Nicos Karasavvas
John Sidney
Morgane Rolland
Anais Valencia-Micolta
Sirinan Madnote
Alessandro Sette
Sorachai Nitayaphan
Punnee Pitisuttuthum
Jaranit Kaewkungwal
Supachai Rerks-Ngarm
Robert O'Connell
Nelson Michael
Merlin L Robb
Mary Marovich
Jerome H Kim
author_sort Silvia Ratto-Kim
collection DOAJ
description We performed fine epitope mapping of the CD4+ responses in the ALVAC-HIV-AIDSVAX B/E prime-boost regimen in the Thai Phase III trial (RV144). Non-transformed Env-specific T cell lines established from RV144 vaccinees were used to determine the fine epitope mapping of the V2 and C1 responses and the HLA class II restriction. Data showed that there are two CD4+ epitopes contained within the V2 loop: one encompassing the α4β7 integrin binding site (AA179-181) and the other nested between two previously described genetic sieve signatures (AA169, AA181). There was no correlation between the frequencies of CD4+ fine epitope responses and binding antibody.
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spelling doaj.art-3f48103a5af34f3c907fa9c1c7b22e762022-12-21T18:41:42ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-01102e011558210.1371/journal.pone.0115582Identification of immunodominant CD4-restricted epitopes co-located with antibody binding sites in individuals vaccinated with ALVAC-HIV and AIDSVAX B/E.Silvia Ratto-KimMark S de SouzaJeffrey R CurrierNicos KarasavvasJohn SidneyMorgane RollandAnais Valencia-MicoltaSirinan MadnoteAlessandro SetteSorachai NitayaphanPunnee PitisuttuthumJaranit KaewkungwalSupachai Rerks-NgarmRobert O'ConnellNelson MichaelMerlin L RobbMary MarovichJerome H KimWe performed fine epitope mapping of the CD4+ responses in the ALVAC-HIV-AIDSVAX B/E prime-boost regimen in the Thai Phase III trial (RV144). Non-transformed Env-specific T cell lines established from RV144 vaccinees were used to determine the fine epitope mapping of the V2 and C1 responses and the HLA class II restriction. Data showed that there are two CD4+ epitopes contained within the V2 loop: one encompassing the α4β7 integrin binding site (AA179-181) and the other nested between two previously described genetic sieve signatures (AA169, AA181). There was no correlation between the frequencies of CD4+ fine epitope responses and binding antibody.http://europepmc.org/articles/PMC4321833?pdf=render
spellingShingle Silvia Ratto-Kim
Mark S de Souza
Jeffrey R Currier
Nicos Karasavvas
John Sidney
Morgane Rolland
Anais Valencia-Micolta
Sirinan Madnote
Alessandro Sette
Sorachai Nitayaphan
Punnee Pitisuttuthum
Jaranit Kaewkungwal
Supachai Rerks-Ngarm
Robert O'Connell
Nelson Michael
Merlin L Robb
Mary Marovich
Jerome H Kim
Identification of immunodominant CD4-restricted epitopes co-located with antibody binding sites in individuals vaccinated with ALVAC-HIV and AIDSVAX B/E.
PLoS ONE
title Identification of immunodominant CD4-restricted epitopes co-located with antibody binding sites in individuals vaccinated with ALVAC-HIV and AIDSVAX B/E.
title_full Identification of immunodominant CD4-restricted epitopes co-located with antibody binding sites in individuals vaccinated with ALVAC-HIV and AIDSVAX B/E.
title_fullStr Identification of immunodominant CD4-restricted epitopes co-located with antibody binding sites in individuals vaccinated with ALVAC-HIV and AIDSVAX B/E.
title_full_unstemmed Identification of immunodominant CD4-restricted epitopes co-located with antibody binding sites in individuals vaccinated with ALVAC-HIV and AIDSVAX B/E.
title_short Identification of immunodominant CD4-restricted epitopes co-located with antibody binding sites in individuals vaccinated with ALVAC-HIV and AIDSVAX B/E.
title_sort identification of immunodominant cd4 restricted epitopes co located with antibody binding sites in individuals vaccinated with alvac hiv and aidsvax b e
url http://europepmc.org/articles/PMC4321833?pdf=render
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