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Design and evaluation of multi-gene, multi-clade HIV-1 MVA vaccines

  • Patricia L. Earl*
  • , Catherine Cotter
  • , Bernard Moss
  • , Thomas VanCott
  • , Jeffrey Currier
  • , Leigh Anne Eller
  • , Francine McCutchan
  • , Deborah L. Birx
  • , Nelson L. Michael
  • , Mary A. Marovich
  • , Merlin Robb
  • , Josephine H. Cox
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

Recombinant modified vaccinia virus Ankara (rMVA) expressing HIV-1 genes are promising vaccine candidates. Toward the goal of conducting clinical trials with one or a cocktail of recombinant viruses, four rMVAs expressing env and gag-pol genes from primary HIV-1 isolates representing predominant subtypes from Kenya, Tanzania, Uganda, and Thailand (A, C, D, and CRF01_AE, respectively) were constructed. Efficient expression, processing, and function of Env and Gag were demonstrated. All inserted genes were shown to be genetically stable after repeated passage in cell culture. Strong HIV-specific cellular and humoral immune responses were elicited in mice immunized with each individual vaccine candidate. The MVA/CMDR vaccine candidate expressing CRF01_AE genes has elicited HIV-specific T-cell responses in two independent Phase I clinical trials. Further testing of the other rMVA is warranted.

Original languageEnglish
Pages (from-to)5885-5895
Number of pages11
JournalVaccine
Volume27
Issue number42
DOIs
StatePublished - 25 Sep 2009

Keywords

  • HIV vaccine
  • Immune response
  • MVA

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