Airway \(CD8^+\) T Cells Induced by Pulmonary DNA Immunization Mediate Protective Anti-Viral Immunity

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Airway \(CD8^+\) T Cells Induced by Pulmonary DNA Immunization Mediate Protective Anti-Viral Immunity

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Title: Airway \(CD8^+\) T Cells Induced by Pulmonary DNA Immunization Mediate Protective Anti-Viral Immunity
Author: Bar, L; Webby, R J; Hovav, A-H; Letvin, N L; Bivas-Benita, Maytal; Gillard, Geoffrey Oliver; White, K. A.

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Citation: Bivas-Benita, Maytal, Geoffrey Oliver Gillard, L. Bar, K. A. White, R. J. Webby, A.-H. Hovav, and N. L. Letvin. 2013. Airway \(CD8^+\) T cells induced by pulmonary DNA immunization mediate protective anti-viral immunity. Mucosal Immunology 6(1): 156-166.
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Abstract: Vaccination strategies for protection against a number of respiratory pathogens must induce T-cell populations in both the pulmonary airways and peripheral lymphoid organs. In this study, we show that pulmonary immunization using plasmid DNA formulated with the polymer polyethyleneimine (PEI-DNA) induced antigen-specific \(CD8^+\) T cells in the airways that persisted long after antigen local clearance. The persistence of the cells was not mediated by local lymphocyte proliferation or persistent antigen presentation within the lung or airways. These vaccine-induced \(CD8^+\) T cells effectively mediated protective immunity against respiratory challenges with vaccinia virus and influenza virus. Moreover, this protection was not dependent upon the recruitment of T cells from peripheral sites. These findings demonstrate that pulmonary immunization with PEI-DNA is an efficient approach for inducing robust pulmonary \(CD8^+\) T-cell populations that are effective at protecting against respiratory pathogens.
Published Version: doi:10.1038/mi.2012.59
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3534169/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:10612890
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