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ID 40642
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Title Alternative
Studies on the role of eosinophils in the pathogenesis of bronchial asthma Part 1. Evaluation of serum eosinophil chemotactic factor in asthmatic responses using eosinophils purified by flow cytometry
Author
Kawada, Ichiro
Abstract
The serum eosinophil chemotactic factor (ECF) was evaluated by use of the modified Boyden chamber method. Flow cytometry (FCM) was applied to obtain highly purified eosinophils from peripheral blood of normal subjects. The maximal chemotaxis of these eosinophils was shown at 1×10(-7) M of platelet activating factor and leukotriene B4. In bronchial asthmatics with immediate asthmatic response (IAR), serum ECF activity showed only an early rise, and that in asthmatics with late asthmatic response (LAR) showed a precedent rise before bronchial reaction. Asthmatic patients with both IAR and LAR showed biphasic elevation in ECF activity. These findings suggest that the function of ECF in the pathogenesis of IAR is different from that in LAR. The eosinophils purified by FCM were very useful for measurement of ECF by the Boyden chamber method.
Keywords
Bronchial asthma
Eosinophil
Eosinophil chemotactic factor (ECF)
Flow cytometry
Published Date
1990-06
Publication Title
岡山医学会雑誌
Publication Title Alternative
Journal of Okayama Medical Association
Volume
volume102
Issue
issue5-6
Publisher
岡山医学会
Publisher Alternative
Okayama Medical Association
Start Page
733
End Page
743
ISSN
0030-1558
NCID
AN00032489
Content Type
Journal Article
Official Url
https://www.jstage.jst.go.jp/article/joma1947/102/5-6/102_5-6_733/_article/-char/ja/
Related Url
http://www.okayama-u.ac.jp/user/oma/
language
日本語
OAI-PMH Set
岡山大学
Copyright Holders
岡山医学会
File Version
publisher
Refereed
True
Eprints Journal Name
joma