Article: Interleukin 12 is a primary cytokine responding to influenza virus infection in the respiratory tract of mice.
2009 Volume 53, Issue 4, Page(s) 233–240
Abstract: ... of mice infected with Influenza A virus or an intranasal (i.n.) administration of IL-12 to the infected ... with Influenza A virus IL-12 was elevated on day 1 post infection (p.i.) and was followed by tumor necrosis factor alfa ... We have reported previously that an increase in interleukin 12 (IL-12) production in the lungs ...
| Abstract | We have reported previously that an increase in interleukin 12 (IL-12) production in the lungs of mice infected with Influenza A virus or an intranasal (i.n.) administration of IL-12 to the infected mice alleviated pneumonia (Tsurita et al., J. Pharmacol. Exp. Therapeut. 298, 362-368, 2001). In this study, we found that in the bronchoalveolar lavage fluids (BALF) obtained from mice infected i.n. with Influenza A virus IL-12 was elevated on day 1 post infection (p.i.) and was followed by tumor necrosis factor alfa (TNF-alfa), IL-18, and interferons alfa, beta, and gama (IFN-alfa, -beta, and -gama) on day 2 p.i. Histochemical analyses of the infected lungs on day 1 p.i. showed the presence of IL-12 and IL-12 mRNA in mononuclear and macrophage-like cells and co-localization of macrophages with viral antigen, while other cytokines were absent. Thus, IL-12 was produced by macrophages infiltrating the infected epithelium as the first response cytokine and its production at the site of infection may direct an early immune defense to alleviate the severity of infection. |
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| MeSH term(s) | Animals ; Bronchoalveolar Lavage Fluid/cytology ; Bronchoalveolar Lavage Fluid/immunology ; Cytokines/immunology ; Cytokines/metabolism ; Female ; Influenza A Virus, H1N1 Subtype/immunology ; Influenza A Virus, H1N1 Subtype/pathogenicity ; Interleukin-12/immunology ; Interleukin-12/metabolism ; Leukocytes, Mononuclear/immunology ; Lung/cytology ; Lung/immunology ; Macrophages/immunology ; Macrophages/metabolism ; Mice ; Mice, Inbred DBA ; Orthomyxoviridae Infections/immunology ; Orthomyxoviridae Infections/virology ; Pneumonia, Viral/immunology ; Pneumonia, Viral/virology ; RNA, Messenger/genetics ; RNA, Messenger/metabolism | |||||
| Chemical Substances | Cytokines ; RNA, Messenger ; Interleukin-12 (187348-17-0) | |||||
| Language | English | |||||
| Publishing date | 2009-11-25 | |||||
| Publishing country | Slovakia | |||||
| Document type | Journal Article ; Research Support, Non-U.S. Gov't | |||||
| ZDB-ID | 210452-0 | |||||
| ISSN | 1336-2305 ; 0001-723X | |||||
| ISSN (online) | 1336-2305 | |||||
| ISSN | 0001-723X | |||||
| DOI | 10.4149/av_2009_04_233 | |||||
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| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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