1. Role of Pasteurella multocida porin on cytokine expression and release by murine splenocytes.
- Author
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Iovane G, Pagnini P, Galdiero M, Cipollaro de l'Ero G, Vitiello M, D'Isanto M, and Marcatili A
- Subjects
- Animals, Cytokines genetics, Interleukin-1 biosynthesis, Interleukin-1 genetics, Interleukin-10 biosynthesis, Interleukin-10 genetics, Interleukin-6 biosynthesis, Interleukin-6 genetics, Lipopolysaccharides pharmacology, Male, Mice, Mice, Inbred BALB C, RNA, Messenger metabolism, Spleen drug effects, Spleen microbiology, Tumor Necrosis Factor-alpha biosynthesis, Tumor Necrosis Factor-alpha genetics, Cytokines biosynthesis, Pasteurella multocida, Porins pharmacology, Spleen metabolism
- Abstract
The aim of this study was to verify whether Pasteurella multocida porin can affect the expression and release of IL-1alpha, IL-6, TNF-alpha, IL-4, IFN-gamma, IL-10 and IL-12 by murine splenocytes in vitro. P. multocida porin and lipopolysaccharide (LPS) were able to induce the release of IL-1alpha, IL-6, TNF-alpha, IFN-gamma and IL-12 in a dose-dependent fashion. The greatest release of these cytokines was obtained using P. multocida porin at a concentration of 5 microg ml(-1) and LPS at a concentration of 1 microg ml(-1). The time-courses of release showed that P. multocida LPS was able to stimulate the production of IL-1alpha, IL-6, TNF-alpha, IFN-gamma and IL-12 earlier than porin and at a greater rate. No effect was observed on IL-4 and IL-10 release under the same experimental conditions. P. multocida porin and LPS were also able to up-regulate the mRNA expression of IL-1alpha, IL-6, TNF-alpha, IFN-gamma and IL-12 p40. Our findings suggest that P. multocida porin is able to modulate inflammatory and immunological responses by affecting the release of several cytokines and the expression of their genes.
- Published
- 1998
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