Projects per year
Abstract
Influenza A, B and C viruses (IAV, IBV and ICV, respectively) circulate globally and infect humans, with IAV and IBV causing the most severe disease. CD8 + T cells confer cross-protection against IAV strains, however the responses of CD8 + T cells to IBV and ICV are understudied. We investigated the breadth of CD8 + T cell cross-recognition and provide evidence of CD8 + T cell cross-reactivity across IAV, IBV and ICV. We identified immunodominant CD8 + T cell epitopes from IBVs that were protective in mice and found memory CD8 + T cells directed against universal and influenza-virus-type-specific epitopes in the blood and lungs of healthy humans. Lung-derived CD8 + T cells displayed tissue-resident memory phenotypes. Notably, CD38 + Ki67 + CD8 + effector T cells directed against novel epitopes were readily detected in IAV- or IBV-infected pediatric and adult subjects. Our study introduces a new paradigm whereby CD8 + T cells confer unprecedented cross-reactivity across all influenza viruses, a key finding for the design of universal vaccines.
Original language | English |
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Pages (from-to) | 613-625 |
Number of pages | 15 |
Journal | Nature Immunology |
Volume | 20 |
DOIs | |
Publication status | Published - 18 Feb 2019 |
Projects
- 5 Finished
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Understanding the complexity of antigen presentation
National Health and Medical Research Council (NHMRC) (Australia)
1/01/18 → 31/12/22
Project: Research
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Limiting the impact of influenza
Turner, S., La Gruta, N., Chen, W., Kedzierska, K., Jackson, D., Brown, L. E. & Doherty, P. C.
1/01/15 → 31/12/19
Project: Research
Equipment
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Monash Proteomics & Metabolomics Facility
Ralf Schittenhelm (Manager)
Faculty of Medicine Nursing and Health Sciences Research PlatformsFacility/equipment: Facility