Title
Alternative effector-function profiling identifies broad HIV-specific T-cell responses in highly HIV-exposed individuals who remain uninfected
Date Issued
15 March 2015
Access level
open access
Resource Type
journal article
Author(s)
Ruiz-Riol M.
Llano A.
Ibarrondo J.
Zamarreño J.
Yusim K.
Bach V.
Mothe B.
Perez-Alvarez S.
Fernandez M.A.
Requena G.
Meulbroek M.
Pujol F.
Leon A.
Cobarsi P.
Korber B.T.
Clotet B.
Sanchez J.
Coll J.
Brander C.
Publisher(s)
Oxford University Press
Abstract
The characterization of host immune responses to human immunodeficiency virus (HIV) in HIV controllers and individuals with high exposure but seronegativity to HIV (HESN) is needed to guide the development of effective preventive and therapeutic vaccine candidates. However, several technical hurdles severely limit the definition of an effective virus-specific T-cell response. By using a toggle-peptide approach, which takes HIV sequence diversity into account, and a novel, boosted cytokine staining/flow cytometry strategy, we here describe new patterns of T-cell responses to HIV that would be missed by standard assays. Importantly, this approach also allows detection of broad and strong virus-specific T-cell responses in HESN individuals that are characterized by a T-helper type 1 cytokine-like effector profile and produce cytokines that have been associated with potential control of HIV infection, including interleukin 10, interleukin 13, and interleukin 22. These results establish a novel approach to improve the current understanding of HIV-specific T-cell immunity and identify cellular immune responses and individual cytokines as potential markers of relative HIV resistance. As such, the findings also help develop similar strategies for more-comprehensive assessments of host immune responses to other human infections and immune-mediated disorders.
Start page
936
End page
946
Volume
211
Issue
6
Language
English
Scopus EID
2-s2.0-84924368748
PubMed ID
Source
Journal of Infectious Diseases
ISSN of the container
00221899
Sponsor(s)
National Institutes of Health - R01 DE018925-05 National Institute of Dental and Craniofacial Research - R01DE018925 - NIDCR
Sources of information: Directorio de Producción Científica Scopus