Dendritic cell-natural killer cell cross-talk modulates T cell activation in response to influenza A viral infection
Influenza viruses lead to substantial morbidity and mortality including ~3-5 million cases of severe illness and ~290,000-650,000 deaths annually. One of the major hurdles regarding influenza vaccine efficacy is generating a durable, robust cellular immune response. Appropriate stimulation of the in...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-12-01
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| Series: | Frontiers in Immunology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fimmu.2022.1006998/full |
| _version_ | 1828089224862105600 |
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| author | Abigail G. Harvey Athens M. Graves Chandana K. Uppalapati Saoirse M. Matthews Stephanie Rosenberg Emma G. Parent Madison H. Fagerlie Jack Guinan Brina S. Lopez Lisa M. Kronstad |
| author_facet | Abigail G. Harvey Athens M. Graves Chandana K. Uppalapati Saoirse M. Matthews Stephanie Rosenberg Emma G. Parent Madison H. Fagerlie Jack Guinan Brina S. Lopez Lisa M. Kronstad |
| author_sort | Abigail G. Harvey |
| collection | DOAJ |
| description | Influenza viruses lead to substantial morbidity and mortality including ~3-5 million cases of severe illness and ~290,000-650,000 deaths annually. One of the major hurdles regarding influenza vaccine efficacy is generating a durable, robust cellular immune response. Appropriate stimulation of the innate immune system is key to generating cellular immunity. Cross-talk between innate dendritic cells (DC) and natural killer (NK) cells plays a key role in activating virus-specific T cells, yet the mechanisms used by influenza A viruses (IAV) to govern this process remain incompletely understood. Here, we used an ex vivo autologous human primary immune cell culture system to evaluate the impact of DC-NK cell cross-talk and subsequent naïve T cell activation at steady-state and after exposure to genetically distinct IAV strains–A/California/07/2009 (H1N1) and A/Victoria/361/2011 (H3N2). Using flow cytometry, we found that exposure of DCs to IAV in co-culture with NK cells led to a decreased frequency of CD83+ and CD86+ cells on DCs and an increased frequency of HLA-DR+ on both DCs and NK cells. We then assessed the outcome of DC-NK cell cross-talk on T cell activation. At steady-state, DC-NK cell cross-talk increased pan T cell CD69 and CD25 expression while exposure to either IAV strain reduced pan T cell CD25 expression and suppressed CD4+ and CD8+ T cell IFN-γ and TNF production, following chemical stimulation with PMA/Ionomycin. Moreover, exposure to A/Victoria/361/2011 elicited lower IFN-γ production by CD4+ and CD8+ T cells compared with A/California/07/2009. Overall, our results indicate a role for DC-NK cell cross-talk in T cell priming in the context of influenza infection, informing the immunological mechanisms that could be manipulated for the next generation of influenza vaccines or immunotherapeutics. |
| first_indexed | 2024-04-11T05:35:45Z |
| format | Article |
| id | doaj.art-575bf1a98c2442f78b76ac99be3fbdda |
| institution | Directory Open Access Journal |
| issn | 1664-3224 |
| language | English |
| last_indexed | 2024-04-11T05:35:45Z |
| publishDate | 2022-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Immunology |
| spelling | doaj.art-575bf1a98c2442f78b76ac99be3fbdda2022-12-22T12:06:02ZengFrontiers Media S.A.Frontiers in Immunology1664-32242022-12-011310.3389/fimmu.2022.10069981006998Dendritic cell-natural killer cell cross-talk modulates T cell activation in response to influenza A viral infectionAbigail G. Harvey0Athens M. Graves1Chandana K. Uppalapati2Saoirse M. Matthews3Stephanie Rosenberg4Emma G. Parent5Madison H. Fagerlie6Jack Guinan7Brina S. Lopez8Lisa M. Kronstad9Master of Biomedical Sciences Program, Midwestern University, Glendale, AZ, United StatesMaster of Biomedical Sciences Program, Midwestern University, Glendale, AZ, United StatesDepartment of Microbiology and Immunology, College of Graduate Studies, Midwestern University, Glendale, AZ, United StatesMaster of Biomedical Sciences Program, Midwestern University, Glendale, AZ, United StatesArizona College of Osteopathic Medicine, Midwestern University, Glendale, AZ, United StatesArizona College of Osteopathic Medicine, Midwestern University, Glendale, AZ, United StatesArizona College of Osteopathic Medicine, Midwestern University, Glendale, AZ, United StatesFarm Animal Medicine, College of Veterinary Medicine, Midwestern University, Glendale, AZ, United StatesFarm Animal Medicine, College of Veterinary Medicine, Midwestern University, Glendale, AZ, United StatesDepartment of Microbiology and Immunology, College of Graduate Studies, Midwestern University, Glendale, AZ, United StatesInfluenza viruses lead to substantial morbidity and mortality including ~3-5 million cases of severe illness and ~290,000-650,000 deaths annually. One of the major hurdles regarding influenza vaccine efficacy is generating a durable, robust cellular immune response. Appropriate stimulation of the innate immune system is key to generating cellular immunity. Cross-talk between innate dendritic cells (DC) and natural killer (NK) cells plays a key role in activating virus-specific T cells, yet the mechanisms used by influenza A viruses (IAV) to govern this process remain incompletely understood. Here, we used an ex vivo autologous human primary immune cell culture system to evaluate the impact of DC-NK cell cross-talk and subsequent naïve T cell activation at steady-state and after exposure to genetically distinct IAV strains–A/California/07/2009 (H1N1) and A/Victoria/361/2011 (H3N2). Using flow cytometry, we found that exposure of DCs to IAV in co-culture with NK cells led to a decreased frequency of CD83+ and CD86+ cells on DCs and an increased frequency of HLA-DR+ on both DCs and NK cells. We then assessed the outcome of DC-NK cell cross-talk on T cell activation. At steady-state, DC-NK cell cross-talk increased pan T cell CD69 and CD25 expression while exposure to either IAV strain reduced pan T cell CD25 expression and suppressed CD4+ and CD8+ T cell IFN-γ and TNF production, following chemical stimulation with PMA/Ionomycin. Moreover, exposure to A/Victoria/361/2011 elicited lower IFN-γ production by CD4+ and CD8+ T cells compared with A/California/07/2009. Overall, our results indicate a role for DC-NK cell cross-talk in T cell priming in the context of influenza infection, informing the immunological mechanisms that could be manipulated for the next generation of influenza vaccines or immunotherapeutics.https://www.frontiersin.org/articles/10.3389/fimmu.2022.1006998/fulldendritic cellsnatural killer cellsT cellsinfluenzapandemicH1N1 |
| spellingShingle | Abigail G. Harvey Athens M. Graves Chandana K. Uppalapati Saoirse M. Matthews Stephanie Rosenberg Emma G. Parent Madison H. Fagerlie Jack Guinan Brina S. Lopez Lisa M. Kronstad Dendritic cell-natural killer cell cross-talk modulates T cell activation in response to influenza A viral infection Frontiers in Immunology dendritic cells natural killer cells T cells influenza pandemic H1N1 |
| title | Dendritic cell-natural killer cell cross-talk modulates T cell activation in response to influenza A viral infection |
| title_full | Dendritic cell-natural killer cell cross-talk modulates T cell activation in response to influenza A viral infection |
| title_fullStr | Dendritic cell-natural killer cell cross-talk modulates T cell activation in response to influenza A viral infection |
| title_full_unstemmed | Dendritic cell-natural killer cell cross-talk modulates T cell activation in response to influenza A viral infection |
| title_short | Dendritic cell-natural killer cell cross-talk modulates T cell activation in response to influenza A viral infection |
| title_sort | dendritic cell natural killer cell cross talk modulates t cell activation in response to influenza a viral infection |
| topic | dendritic cells natural killer cells T cells influenza pandemic H1N1 |
| url | https://www.frontiersin.org/articles/10.3389/fimmu.2022.1006998/full |
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