The Canarypox-virus vaccine vector ALVAC triggers the release of IFN-γ by Natural Killer (NK) cells enhancing Th1 polarization

Elizabeth J. Ryan; Anke Harenberg; Nicolas Burdin

doi:10.1016/j.vaccine.2006.12.048

The Canarypox-virus vaccine vector ALVAC triggers the release of IFN-γ by Natural Killer (NK) cells enhancing Th1 polarization

Elizabeth J. Ryan, Anke Harenberg, Nicolas Burdin

Sanofi-Aventis

Research output: Contribution to journal › Article › peer-review

Abstract

We investigated the mechanism by which ALVAC activates innate immunity. Combining ALVAC with protein antigens significantly augmented antigen-specific IgG2a responses; this was dependent on the presence of bioactive interferon (IFN)-γ. Immuno-depletion of NK cells prior to ALVAC immunisation abrogated IFN-γ production indicating that they are the main cellular source of early IFN-γ in vivo. Murine bone-marrow derived dendritic cells (BMDCs) cultured in the presence of ALVAC secreted high levels of the chemokines CXCL10 and CCL2 and up-regulated expression of the maturation markers CD40, CD80 and CD86. Therefore, we conclude that ALVAC acts as an adjuvant through a mechanism requiring NK cell derived IFN-γ, DC activation and chemokine secretion.

Original language	English
Pages (from-to)	3380-3390
Number of pages	11
Journal	Vaccine
Volume	25
Issue number	17
DOIs	https://doi.org/10.1016/j.vaccine.2006.12.048
Publication status	Published - 30 Apr 2007
Externally published	Yes

Keywords

Adjuvant
AIDS vaccine
Dendritic cell
NK cell
Th1

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.vaccine.2006.12.048

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title = "The Canarypox-virus vaccine vector ALVAC triggers the release of IFN-γ by Natural Killer (NK) cells enhancing Th1 polarization",

abstract = "We investigated the mechanism by which ALVAC activates innate immunity. Combining ALVAC with protein antigens significantly augmented antigen-specific IgG2a responses; this was dependent on the presence of bioactive interferon (IFN)-γ. Immuno-depletion of NK cells prior to ALVAC immunisation abrogated IFN-γ production indicating that they are the main cellular source of early IFN-γ in vivo. Murine bone-marrow derived dendritic cells (BMDCs) cultured in the presence of ALVAC secreted high levels of the chemokines CXCL10 and CCL2 and up-regulated expression of the maturation markers CD40, CD80 and CD86. Therefore, we conclude that ALVAC acts as an adjuvant through a mechanism requiring NK cell derived IFN-γ, DC activation and chemokine secretion.",

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AU - Harenberg, Anke

AU - Burdin, Nicolas

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AB - We investigated the mechanism by which ALVAC activates innate immunity. Combining ALVAC with protein antigens significantly augmented antigen-specific IgG2a responses; this was dependent on the presence of bioactive interferon (IFN)-γ. Immuno-depletion of NK cells prior to ALVAC immunisation abrogated IFN-γ production indicating that they are the main cellular source of early IFN-γ in vivo. Murine bone-marrow derived dendritic cells (BMDCs) cultured in the presence of ALVAC secreted high levels of the chemokines CXCL10 and CCL2 and up-regulated expression of the maturation markers CD40, CD80 and CD86. Therefore, we conclude that ALVAC acts as an adjuvant through a mechanism requiring NK cell derived IFN-γ, DC activation and chemokine secretion.

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KW - Dendritic cell

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KW - Th1

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The Canarypox-virus vaccine vector ALVAC triggers the release of IFN-γ by Natural Killer (NK) cells enhancing Th1 polarization

Abstract

Keywords

UN SDGs

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