Phenotypic and functional profile of HIV-inhibitory CD8 T cells elicited by natural infection and heterologous prime/boost vaccination.
Journal Article
Control of HIV-1 replication following nonsterilizing HIV-1 vaccination could be achieved by vaccine-elicited CD8(+) T-cell-mediated antiviral activity. To date, neither the functional nor the phenotypic profiles of CD8(+) T cells capable of this activity are clearly understood; consequently, little is known regarding the ability of vaccine strategies to elicit them. We used multiparameter flow cytometry and viable cell sorts from phenotypically defined CD8(+) T-cell subsets in combination with a highly standardized virus inhibition assay to evaluate CD8(+) T-cell-mediated inhibition of viral replication. Here we show that vaccination against HIV-1 Env and Gag-Pol by DNA priming followed by recombinant adenovirus type 5 (rAd5) boosting elicited CD8(+) T-cell-mediated antiviral activity against several viruses with either lab-adapted or transmitted virus envelopes. As it did for chronically infected virus controllers, this activity correlated with HIV-1-specific CD107a or macrophage inflammatory protein 1beta (MIP-1beta) expression from HIV-1-specific T cells. Moreover, for vaccinees or virus controllers, purified memory CD8(+) T cells from a wide range of differentiation stages were capable of significantly inhibiting virus replication. Our data define attributes of an antiviral CD8(+) T-cell response that may be optimized in the search for an efficacious HIV-1 vaccine.
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Duke Authors
- Cunningham, Coleen Kathryn
- Denny, Thomas Norton
- Ferrari, Guido
- Haynes, Barton Ford
- Saunders, Kevin O'Neil
- Tomaras, Georgia Doris
- Weinhold, Kent James
Cited Authors
- Freel, SA; Lamoreaux, L; Chattopadhyay, PK; Saunders, K; Zarkowsky, D; Overman, RG; Ochsenbauer, C; Edmonds, TG; Kappes, JC; Cunningham, CK; Denny, TN; Weinhold, KJ; Ferrari, G; Haynes, BF; Koup, RA; Graham, BS; Roederer, M; Tomaras, GD
Published Date
- May 2010
Published In
Volume / Issue
- 84 / 10
Start / End Page
- 4998 - 5006
PubMed ID
- 20200250
Pubmed Central ID
- 20200250
Electronic International Standard Serial Number (EISSN)
- 1098-5514
Digital Object Identifier (DOI)
- 10.1128/JVI.00138-10
Language
- eng
Conference Location
- United States