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The transcription factor CREB1 is a mechanistic driver of immunogenicity and reduced HIV-1 acquisition following ALVAC vaccination

  • Jeffrey Alan Tomalka
  • , Adam Nicolas Pelletier
  • , Slim Fourati
  • , Muhammad Bilal Latif
  • , Ashish Sharma
  • , Kathryn Furr
  • , Kevin Carlson
  • , Michelle Lifton
  • , Ana Gonzalez
  • , Peter Wilkinson
  • , Genoveffa Franchini
  • , Robert Parks
  • , Norman Letvin
  • , Nicole Yates
  • , Kelly Seaton
  • , Georgia Tomaras
  • , Jim Tartaglia
  • , Merlin L. Robb
  • , Nelson L. Michael
  • , Richard Koup
  • Barton Haynes, Sampa Santra*, Rafick Pierre Sekaly*
*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Development of effective human immunodeficiency virus 1 (HIV-1) vaccines requires synergy between innate and adaptive immune cells. Here we show that induction of the transcription factor CREB1 and its target genes by the recombinant canarypox vector ALVAC + Alum augments immunogenicity in non-human primates (NHPs) and predicts reduced HIV-1 acquisition in the RV144 trial. These target genes include those encoding cytokines/chemokines associated with heightened protection from simian immunodeficiency virus challenge in NHPs. Expression of CREB1 target genes probably results from direct cGAMP (STING agonist)-modulated p-CREB1 activity that drives the recruitment of CD4+ T cells and B cells to the site of antigen presentation. Importantly, unlike NHPs immunized with ALVAC + Alum, those immunized with ALVAC + MF59, the regimen in the HVTN702 trial that showed no protection from HIV infection, exhibited significantly reduced CREB1 target gene expression. Our integrated systems biology approach has validated CREB1 as a critical driver of vaccine efficacy and highlights that adjuvants that trigger CREB1 signaling may be critical for efficacious HIV-1 vaccines.

Original languageEnglish
Pages (from-to)1294-1305
Number of pages12
JournalNature Immunology
Volume22
Issue number10
DOIs
StatePublished - Oct 2021

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