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Characterization of B-cell and T-cell responses to a tetravalent dengue purified inactivated vaccine in healthy adults.
- Source :
-
NPJ vaccines [NPJ Vaccines] 2022 Oct 31; Vol. 7 (1), pp. 132. Date of Electronic Publication: 2022 Oct 31. - Publication Year :
- 2022
-
Abstract
- The increasing global impact of dengue underscores the need for a dengue virus (DENV) vaccine. We assessed B-cell and T-cell responses following vaccination with four formulations of a tetravalent dengue purified inactivated vaccine (DPIV) in dengue-primed and dengue-naive adults from two studies (NCT01666652, NCT01702857). Frequencies of DPIV-induced memory B cells specific to each DENV serotype remained high up to 12 months post-vaccination, and were higher in the dengue-primed than dengue-naive adults. A subsequent DPIV booster dose induced strong anamnestic B-cell responses. Multifunctional CD4+ T cells (predominantly expressing IL-2) were induced by DPIV, with higher frequencies in dengue-primed adults. DPIV-induced CD4+ T cells also demonstrated in vitro proliferative capacity and antigen-specific production of GM-CSF, IFN-γ, and IL-13. CD8+ T-cell responses were undetectable in dengue-naive adults and low in dengue-primed individuals. B- and T-cell responses persisted up to 12 months post-vaccination in both dengue-primed and dengue-naive adults.<br /> (© 2022. This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply 2022.)
Details
- Language :
- English
- ISSN :
- 2059-0105
- Volume :
- 7
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- NPJ vaccines
- Publication Type :
- Academic Journal
- Accession number :
- 36316335
- Full Text :
- https://doi.org/10.1038/s41541-022-00537-2