Systematic comparison of HIV-1 Envelope-specific IgG responses induced by different vaccination regimens: Can we steer IgG recognition towards regions of viral vulnerability?
Author(s)
Type
Journal Article
Abstract
Immunogens and vaccination regimens can influence patterns of immune-epitope recognition, steering them towards or away from epitopes of potential viral vulnerability. HIV-1 envelope (Env)-specific antibodies targeting variable region 2 (V2) or 3 (V3) correlated with protection during the RV144 trial, however, it was suggested that the immunodominant V3 region might divert antibody responses away from other relevant sites. We mapped IgG responses against linear Env epitopes in five clinical HIV vaccine trials, revealing a specific pattern of Env targeting for each regimen. Notable V2 responses were only induced in trials administering CRF01_AE based immunogens, but targeting of V3 was seen in all trials, with the soluble, trimeric CN54gp140 protein eliciting robust V3 recognition. Strong V3 targeting was linked to greater overall response, increased number of total recognised antigenic regions, and where present, stronger V2 recognition. Hence, strong induction of V3-specific antibodies did not negatively impact the targeting of other linear epitopes in this study, suggesting that the induction of antibodies against V3 and other regions of potential viral vulnerability need not be necessarily mutually exclusive.
Date Issued
2023-01-09
Date Acceptance
2022-12-16
Citation
Frontiers in Immunology, 2023, 13, pp.1-16
ISSN
1664-3224
Publisher
Frontiers Media
Start Page
1
End Page
16
Journal / Book Title
Frontiers in Immunology
Volume
13
Copyright Statement
Copyright © 2023 Horvath, Rogers, Pollakis, Baranov, Pieroth, Joseph, Chachage, Heitzer, Maganga, Msafiri, Joachim, Viegas, Eller, Kibuuka, Rerks-Ngarm, Pitisuttithum, Nitayapan, Dhitavat, Premsri, Fidler, Shattock, Robb, Weber, McCormack, Munseri, Lyamuya, Nilsson, Kroidl, Hoelscher, Wagner, Geldmacher and Held. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
License URL
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000920274200001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
Science & Technology
Life Sciences & Biomedicine
Immunology
HIV
CN54rgp140 vaccine
envelope-specific antibodies
immunogen sequence
V3-antibodies
V2-antibodies
linear peptide array
vaccine
IMMUNOGENICITY EVALUATION
MONOCLONAL-ANTIBODIES
GLYCOPROTEIN GP120
IMMUNE-RESPONSE
PHASE-1 SAFETY
EFFICACY TRIAL
ALVAC-HIV
RECOMBINANT
INFECTION
BROAD
Publication Status
Published
Article Number
ARTN 1075606
Date Publish Online
2023-01-09