Transcriptomics

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Transcriptional profiling of macaques treated with ALVAC- and NYVAC-SIV+gp120 alum vaccines


ABSTRACT: We compare the immunogenicity of ALVAC- or NYVAC- based SIVmac251 vaccine regimens combined with gp120/alum boosts and their relative efficacy in a cohort of 65 female rhesus macaques. Both NYVAC- and ALVAC-based regimens induced equivalent titers of serum binding antibodies to gp120, whereas NYVAC elicited significantly higher envelope specific T cell responses. Surprisingly, however, only the ALVAC-based regimen was able to significantly decrease the risk of SIVmac251 acquisition following repeated low-dose intravaginal challenges. The risk of virus acquisition was associated negatively with the frequency of classical monocytes and positively with non-classical. The systems biology approach used to investigate the molecular basis of the different vaccine efficacies demonstrated specific expression profiles elicited by the ALVAC-based regimen that correlate with efficacy.

ORGANISM(S): Macaca mulatta

PROVIDER: GSE138195 | GEO | 2020/03/05

REPOSITORIES: GEO

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