Magnitude and kinetics of T cell and antibody responses during H1N1pdm09 infection in inbred Babraham pigs and outbred pigs
| Autor: | Adam McNee, Anna Fuller, Simon Gubbins, Eleni Vatzia, Elma Tchilian, Ross Harley, Matthew Edmans, Amy Thomas, Andrew K. Sewell, Rachel Burt, Ore Francis, Mick Bailey, Sophie B. Morgan, Emily Porter, Basu Paudyal, Veronica Martini, Bryan Charleston |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
pig
lcsh:Immunologic diseases. Allergy Receptors Antigen T-Cell alpha-beta T cell Sus scrofa Immunology Antibodies Viral Major histocompatibility complex Virus lung Ab Influenza A Virus H1N1 Subtype Immune system Orthomyxoviridae Infections Species Specificity Antigen T-Lymphocyte Subsets medicine Animals Immunology and Allergy Inbreeding Viral shedding Original Research B-Lymphocytes biology H1N1pdm09 Histocompatibility Antigens Class I Receptors Antigen T-Cell gamma-delta swine Viral Load Virus Shedding Disease Models Animal Kinetics medicine.anatomical_structure gamma delta cells Host-Pathogen Interactions biology.protein Cytokines Antibody influenza lcsh:RC581-607 CD8 |
| Zdroj: | Frontiers in Immunology, Vol 11 (2021) Frontiers in Immunology |
| ISSN: | 1664-3224 |
| Popis: | We have used the pig, a large natural host animal for influenza with many physiological similarities to humans, to characterize αβ, γδ T cell and antibody (Ab) immune responses to the 2009 pandemic H1N1 virus infection. We evaluated the kinetic of virus infection and associated response in inbred Babraham pigs with identical MHC (Swine Leucocyte Antigen) and compared them to commercial outbred animals. High level of nasal virus shedding continued up to days 4 to 5 post infection followed by a steep decline and clearance of virus by day 9. Adaptive T cell and Ab responses were detectable from days 5 to 6 post infection reaching a peak at 9 to 14 days. γδ T cells produced cytokines ex vivo at day 2 post infection, while virus reactive IFNγ producing γδ T cells were detected from day 7 post infection. Analysis of NP tetramer specific and virus specific CD8 and CD4 T cells in blood, lung, lung draining lymph nodes, and broncho-alveolar lavage (BAL) showed clear differences in cytokine production between these tissues. BAL contained the most highly activated CD8, CD4, and γδ T cells producing large amounts of cytokines, which likely contribute to elimination of virus. The weak response in blood did not reflect the powerful local lung immune responses. The immune response in the Babraham pig following H1N1pdm09 influenza infection was comparable to that of outbred animals. The ability to utilize these two swine models together will provide unparalleled power to analyze immune responses to influenza. |
| Databáze: | OpenAIRE |
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