CD8+ gamma-delta TCR+ and CD4+ T cells produce IFN-γ at 5-7 days after yellow fever vaccination in Indian rhesus macaques, before the induction of classical antigen-specific T cell responses

  • Patrícia C.C. Neves
  • , Richard A. Rudersdorf
  • , Ricardo Galler
  • , Myrna C. Bonaldo
  • , Marlon Gilsepp Veloso de Santana
  • , Philip A. Mudd
  • , Maurício A. Martins
  • , Eva G. Rakasz
  • , Nancy A. Wilson
  • , David I. Watkins

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

The yellow fever 17D (YF-17D) vaccine is one of the most efficacious vaccines developed to date. Interestingly, vaccination with YF-17D induces IFN-γ production early after vaccination (days 5-7) before the development of classical antigen-specific CD8+ and CD4+ T cell responses. Here we investigated the cellular source of this early IFN-γ production. At days 5 and 7 post-vaccination activated CD8+ gamma-delta TCR T cells produced IFN-γ and TNF-α. Activated CD4+ T cells produced IFN-γ and TNF-α at day 7 post-vaccination. This early IFN-γ production was also induced after vaccination with recombinant YF-17D (rYF-17D), but was not observed after recombinant Adenovirus type 5 (rAd5) vaccination. Early IFN-γ production, therefore, might be an important aspect of yellow fever vaccination.

Original languageEnglish
Pages (from-to)8183-8188
Number of pages6
JournalVaccine
Volume28
Issue number51
DOIs
StatePublished - Nov 29 2010

Keywords

  • IFN-γ
  • Rhesus model
  • Yellow fever vaccine

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