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Journal of Veterinary Research

formerly Bulletin of the Veterinary Institute in Pulawy

4 Issues per year

IMPACT FACTOR Bull Vet Inst Pulawy 2016: 0.462

CiteScore 2016: 0.46

SCImago Journal Rank (SJR) 2015: 0.230
Source Normalized Impact per Paper (SNIP) 2015: 0.383

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Pig lung immune cytokine response to the swine influenza virus and the Actinobacillus pleuropneumoniae infection

Ewelina Czyżewska-Dors / Arkadiusz Dors / Krzysztof Kwit / Ewelina Stasiak / Małgorzata Pomorska-Mól
Published Online: 2017-09-19 | DOI: https://doi.org/10.1515/jvetres-2017-0036


Introduction: The aim of this study was to evaluate and compare the local innate immune response to the swine influenza virus (SIV) and Actinobacillus pleuropneumoniae (App) infection in pigs. Material and Methods: The study was performed on 37 seven-week-old pigs, divided into four groups: App-infected (n=11), App+SIV-infected (n=11), SIV-infected (n=11), and control (n=4). Lung samples were collected, following euthanasia, on the 2nd and 4th dpi (three piglets per inoculated group) and on the 10th dpi (remaining inoculated and control pigs). Lung concentrations of IL-1β, IL-6, IL-8, TNF-α, IL-10, IFN-α, and IFN-γ were analysed with the use of commercial porcine cytokine ELISA kits. Results: Lung concentrations of IL-1β, IL-6, IL-8, TNF-α, IFN-α, and IFN-γ were induced in SIV-infected and App+SIV-infected pigs. In the lung tissue of App-infected pigs, only concentrations of IL-1β, IL-6, IL-8, and IFN-γ were elevated. Additionally, in App+SIV-infected pigs, significantly greater concentrations of IL-1β, IL-8, and IFN-α were found when compared with pigs infected with either SIV or App alone. In each tested group, the lung concentration of IL-10 remained unchanged during the entire study. Conclusion: The results of the study indicate that the experimental infection of pigs with SIV or App alone and co-infection with both pathogens induced a local lung inflammatory response. However, the local cytokine response was considerably higher in co-infected pigs compared to singleinfected pigs

Keywords: pigs; swine influenza virus; Actinobacillus pleuropneumoniae; local immunity; cytokines


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About the article

Received: 2017-05-08

Accepted: 2017-08-31

Published Online: 2017-09-19

Published in Print: 2017-09-26

Citation Information: Journal of Veterinary Research, Volume 61, Issue 3, Pages 259–265, ISSN (Online) 2450-8608, DOI: https://doi.org/10.1515/jvetres-2017-0036.

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© 2017. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. BY-NC-ND 4.0

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