ID 906
File
Authors
Keywords
asthma
dendritic cells
histocompatibility leukocyte antigen-deoxyribose
house dust mite
mannose receptor
Abstract
Dendritic cells (DCs) are one type of important inflammatory cells in the pathogenesis of asthma for early response to allergen exposure. Monocyte-derived DCs (MoDCs) are characterized by a high antigen uptake capacity and poor T-cell stimulatory activity, both features of immature DCs. By stimulation with tumor necrosis factor-alpha (TNF-alpha) or antigen capture, these cells differentiate into mature DCs with the disappearance of antigen-capturing regions, and increase in stimulatory activity. We measured the expression of some molecules on MoDCs before and after stimulation with TNF-alpha or house dust mite (HDM) antigen, from 9 house dust mite (HDM)-allergic asthmatic patients and 8 normal control subjects by flow cytometry. Primary MoDCs from HDM-allergic asthmatics showed a greater expression of histocompatibility leukocyte antigen (HLA)-DR and mannose receptor (MR), but not of CD80, CD86 or intercellular adhesion molecule-1 (ICAM-1), than those from normal subjects (P < 0.05). After stimulation with TNF-alpha or HDM, DCs from asthmatic patients showed a greater expression of HLA-DR, CD86 and ICAM-1, than those from normal subjects. In HDM-allergic asthmatic patients, MR expression on DCs significantly declined after stimulation by HDM compared with stimulation by TNF-alpha (P < 0.05). Results suggest that the reduction of MR expression may be characteristic on mature DCs after HDM exposure in allergic asthma.
Publisher
Tottori University Faculty of Medicine
Content Type
Journal Article
ISSN
1346-8049
NCID
AA00892882
Journal Title
Yonago Acta medica
Current Journal Title
Yonago Acta medica
Volume
42
Issue
1
Start Page
1
End Page
10
Published Date
1999-03
Text Version
Publisher
Rights
Yonago Acta medica 編集委員会
Citation
Yonago Acta medica. 1999, 42(1), 1-10
Department
Faculty of Medicine/Graduate School of Medical Sciences/University Hospital
Language
English