HUMAN PERIPHERAL-BLOOD EOSINOPHILS EXPRESS AND RELEASE INTERLEUKIN-8

被引:26
作者
SIMON, HU
YOUSEFI, S
WEBER, M
SIMON, D
HOLZER, C
HARTUNG, K
BLASER, K
机构
[1] KLIN DERMATOL & ALLERG,DAVOS,SWITZERLAND
[2] HOHENKLIN VALBELLA,DAVOS,SWITZERLAND
关键词
ASTHMA; ATOPIC DERMATITIS; CYTOKINES; EOSINOPHILS; INTERLEUKIN-8;
D O I
10.1159/000236950
中图分类号
R392 [医学免疫学];
学科分类号
100102 ;
摘要
Eosinophils can synthesize various cytokines. We demonstrate that interleukin-8 (IL-8) mRNA and protein are constitutively expressed by freshly isolated resting human eosinophils. Most of the patients with bronchial asthma or atopic dermatitis show evidence for up-regulated IL-8 protein expression in eosinophils but not in neutrophils, suggesting that an eosinophil-specific cytokine may act in these patients. To investigate whether the intracellular IL-8 can be released, eosinophils were stimulated by different cytokines and platelet-activating factor (PAF). Priming with granulocyte/macrophage-colory-stimulating factor and a subsequent 25-min stimulation with RANTES or PAF resulted in release of IL-8 from highly purified human eosinophils in vitro.
引用
收藏
页码:124 / 126
页数:3
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