Virus-like vaccines against HIV/SIV synergize with a subdominant antigen T cell vaccine

In non-human primates (NHPs) and humans, partial protection from HIV/SIV infection or suppression of replication is achievable by Env-binding antibodies and Gag-specific CD8+ T-cells targeting protective epitopes. Unfortunately, such T-cell responses are frequently dominated by responses to non-prot...

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Main Authors: Schwerdtfeger, Melanie (Author) , Andersson, Anne-Marie Carola (Author) , Neukirch, Lasse (Author) , Holst, Peter Johannes (Author)
Format: Article (Journal)
Language:English
Published: 24 May 2019
In: Journal of translational medicine
Year: 2019, Volume: 17, Pages: 1-18
ISSN:1479-5876
DOI:10.1186/s12967-019-1924-1
Online Access:Verlag, Volltext: https://doi.org/10.1186/s12967-019-1924-1
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Author Notes:Melanie Schwerdtfeger, Anne-Marie Carola Andersson, Lasse Neukirch, Peter Johannes Holst
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Summary:In non-human primates (NHPs) and humans, partial protection from HIV/SIV infection or suppression of replication is achievable by Env-binding antibodies and Gag-specific CD8+ T-cells targeting protective epitopes. Unfortunately, such T-cell responses are frequently dominated by responses to non-protective, variable epitopes. In this study we attempt to combine three independent approaches, each developed to prevent immunodominance of non-protective epitopes. These approaches were (1) vaccines consisting exclusively of putatively protective p24 Gag highly conserved elements (CEs), (2) vaccines using solely subdominant antigens which were acutely protective in a recent NHP trial, and (3) virus-encoded virus-like particle vaccines (virus-like vaccines/VLVs) using heterologous Env and Gag sequences to enable selection of broadly cross-reactive responses and to avoid immunodominance of non-conserved sequences in prime-boost regimens as previously observed.
Item Description:Gesehen am 22.07.2019
Physical Description:Online Resource
ISSN:1479-5876
DOI:10.1186/s12967-019-1924-1