Cited by 149Respiratory viral infections researchImmunotherapy and Immune Responsesinterferon and immune responses

Plasmacytoid Dendritic Cells Limit Viral Replication, Pulmonary Inflammation, and Airway Hyperresponsiveness in Respiratory Syncytial Virus Infection

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Wang, Hongwei, Peters, Nina, Schwarze, Jürgen·2006·The Journal of Immunology

Abstract

Plasmacytoid dendritic cells (pDC), as major producers of IFN-α, are thought not only to be pivotal in antiviral immunity, but also to limit allergic inflammation. In this study, we delineate the role of pDC in a mouse model of respiratory syncytial virus (RSV)-induced airway inflammation. Bone marrow-derived pDC generated high levels of IFN-α upon RSV infection, and the percentage of pDC expressing MHC class II and maturation-associated costimulatory molecules was increased. However, their weak Ag-presenting capacity was not enhanced. Furthermore, pDC induced marked levels of IL-10 in T cell cultures irrespective of infection. In vivo, numbers of pDC in the lung increased early after RSV infection and remained elevated throughout the inflammatory phase and the resolution phase of infection. Depletion of pDC resulted in increases in peak RSV titers, pulmonary inflammation, and airway hyperresponsiveness. In contrast, adoptive transfer of activated pDC to the airways reduced RSV copy numbers. In conclusion, RSV infection induces activation of murine pDC with robust IFN-α production, limiting replication and accelerating elimination of RSV. In addition to this innate response, pDC also may play an immune regulatory role in reducing pulmonary inflammation and inhibiting the development of airway hyperresponsiveness.

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Crossref · 10.4049/jimmunol.177.9.6263

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  • Rhinoviruses have been shown to be major regulators of airway remodeling processes, involving not only the airway epithelium but also other components of the airway mucosa.

    “Rhinoviruses have been shown to be major regulators of such airway remodeling processes, involving not only the airway epithelium but also other components of the airway mucosa.”
  • Rhinoviruses may lead to subepithelial fibrosis by the induction of TGF-β, MMP-9, and MMP-10 production, resulting in enhanced degradation and abnormal repair of the extracellular matrix.

    “In addition, they may lead to subepithelial fibrosis by the induction of TGF-β, MMP-9, and MMP-10 production, resulting in enhanced degradation and abnormal repair of the extracellular matrix (26, 303).”

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Authors
Wang, H., Peters, N., & Schwarze, J.
Affiliations
  • Imperial College London (GB)
  • Department of Respiratory Medicine, National Heart and Lung Institute and Wright Fleming Institute of Infection and Immunity, Imperial College London , London ,
Venue
The Journal of Immunology
Published
2006-11-01
Volume
177
Issue
9
Pages
6263-6270
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W1661249704
Cited by
149
References
42
Citations by year
2025: 3 · 2024: 4 · 2023: 4 · 2022: 5 · 2021: 2 · 2020: 8 · 2019: 2 · 2018: 5 · 2017: 12 · 2016: 4 · 2015: 10 · 2014: 7 · 2013: 11 · 2012: 9
FWCI
9.48
Type
journal article
Language
en
Open access
Locations
  • The Journal of Immunology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Amgen
  • Wellcome Trust (067454)
Topics
  • Health Sciences › Medicine › Epidemiology › Respiratory viral infections research
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Life Sciences › Immunology and Microbiology › Immunology › interferon and immune responses
Keywords
plasmacytoid dendritic cells, respiratory syncytial virus, interferon-alpha, airway hyperresponsiveness, lung inflammation, viral replication, IL-10, dendritic cell maturation, MHC class II, antigen presentation, pDC depletion, adoptive transfer, innate immunity, immune regulation
MeSH terms
Animals, Dendritic Cells, Humans, Pneumonia, Viral, T-Lymphocytes, Virus Replication, Interferon-alpha, Respiratory Syncytial Virus, Human, Respiratory Syncytial Virus Infections, CD11c Antigen, Cell Proliferation, Mice

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