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Comparative phenotype of circulating versus tissue immune cells in human lung and blood compartments during health and disease.
Discov. Immunol. 2:kyad009 (2023)
The lung is a dynamic mucosal surface constantly exposed to a variety of immunological challenges including harmless environmental antigens, pollutants, and potentially invasive microorganisms. Dysregulation of the immune system at this crucial site is associated with a range of chronic inflammatory conditions including asthma and Chronic Pulmonary Obstructive Disease (COPD). However, due to its relative inaccessibility, our fundamental understanding of the human lung immune compartment is limited. To address this, we performed flow cytometric immune phenotyping of human lung tissue and matched blood samples that were isolated from 115 donors undergoing lung tissue resection. We provide detailed characterization of the lung mononuclear phagocyte and T cell compartments, demonstrating clear phenotypic differences between lung tissue cells and those in peripheral circulation. Additionally, we show that CD103 expression demarcates pulmonary T cells that have undergone recent TCR and IL-7R signalling. Unexpectedly, we discovered that the immune landscape from asthmatic or COPD donors was broadly comparable to controls. Our data provide a much-needed expansion of our understanding of the pulmonary immune compartment in both health and disease.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Copd ; T Cells ; Asthma ; Dendritic Cells ; Mucosal Immunology
ISSN (print) / ISBN
2754-2483
e-ISSN
2754-2483
Journal
Discovery immunology
Quellenangaben
Volume: 2,
Issue: 1,
Article Number: kyad009
Publisher
Oxford University Press
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Translational Genomics (ITG)