Journal
DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY
Volume 32, Issue 8, Pages 890-897Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.dci.2007.12.008
Keywords
ferret; influenza; cytokine; IFN-gamma ferret; interferon gamma; animal model; influenza; monoclonal antibody; comparative study; immunoassay; cytokines
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Funding
- NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES [R29AI030063] Funding Source: NIH RePORTER
- NIAID NIH HHS [N01 AI030063, N01AI30063, N01 AI 30063] Funding Source: Medline
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Ferrets (Mustela putorius furo) develop symptoms upon influenza infection that resemble those of humans, including sneezing, body temperature variation and weight loss. Highly pathogenic strains of influenza A, such as H5N1, have the capacity to cause severe illness or death in ferrets. The use of ferrets as a model of influenza infection is currently limited by a lack of species- specific immunological reagents. Interferon gamma (IFN-gamma) plays a key role in the development of innate and adaptive immunity and the regulation of Th1 -type immune responses. Here we describe the cloning of the full-length cDNA for ferret IFN-gamma. Multiple sequence alignment of the predicted amino acid sequence with those of other species indicates that the predicted ferret protein shares the highest identity with Eurasian badger IFN-gamma. We raised two hybridoma clones expressing monoclonal antibodies against recombinant ferret IFN-gamma capable of detecting IFN-gamma protein derived from mitogen-stimulated ferret PBMCs by immunoblotting, ELISA and ELISPOT assay. Finally, an ELISA utilizing the ferret-specific antibodies detected elevated levels of IFN-gamma in serum samples from H3N2 influenza A-infected ferrets. (C) 2008 Published by Elsevier Ltd.
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