Abstract
BACKGROUND: Several studies suggest a role for dendritic cell in the pathogenesis of allergic disease.
OBJECTIVE: The purpose of this study was to compare function and phenotype of monocyte-derived dendritic cells (MoDC) from allergic asthmatic patients and healthy control subjects.
METHODS: MoDCs were developed by incubating adherent monocytes for 5 days with IL-4 and granulocyte-macrophage colony-stimulating factor. Phenotype was assessed with flow cytometry, and the antigen-presenting function was assessed with the allogeneic mixed leukocyte reaction and an autologous specific antigen presentation.
RESULTS: The morphology of the MoDCs was characteristic for immature dendritic cells. MoDCs from allergic asthmatic patients showed phenotypic differences in the expression of HLA-DR, CD11b, and the high-affinity receptor for IgE. A clearly enhanced accessory potential of MoDCs from atopic asthmatic patients in the mixed leukocyte reaction was also shown. Moreover, house dust mite-specific T-cell proliferation was increased.
CONCLUSION: This study suggests the involvement of dendritic cells in the pathogenesis of atopic asthma by an increased immunostimulatory capacity of MoDCs.
| Original language | English |
|---|---|
| Pages (from-to) | 90-5 |
| Number of pages | 6 |
| Journal | The Journal of Allergy and Clinical Immunology |
| Volume | 101 |
| Issue number | 1 Pt 1 |
| DOIs | |
| Publication status | Published - Jan 1998 |
| Externally published | Yes |
Keywords
- Antigen Presentation
- Antigens, CD/metabolism
- Case-Control Studies
- Cell Differentiation
- Dendritic Cells/immunology
- Humans
- Hypersensitivity/etiology
- In Vitro Techniques
- Lymphocyte Activation
- Lymphocyte Culture Test, Mixed
- Macrophage-1 Antigen/metabolism
- Monocytes/immunology
- Phenotype
- Receptors, IgE/metabolism
- T-Lymphocytes/immunology
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