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Inhibitory Effect of S100A8 on Neutrophil Apoptosis by Cytokine Release of Normal and Allergic Monocytes

Biomedical Science Letters 2020년 26권 3호 p.226 ~ 229
이지숙,
소속 상세정보
이지숙 ( Lee Ji-Sook ) - Wonkwang Health Science University Department of Clinical Laboratory Science

Abstract


S100A8 functions as an essential factor in inflammatory response. Cytokine release of monocytes and regulation of neutrophil apoptosis are important steps in pathogenesis of allergy. This study aims to examine the relation between cytokine release of monocytes due to S100A8 and neutrophil apoptosis. S100A8 enhanced the release of IL-6 and IL-8 in monocytes of normal and allergic subjects. Treatment of supernatants of normal and allergic monocytes with S100A8 blocked neutrophil apoptosis by inhibition of caspase 9 and caspase 3 activation. The secretion signal induced by S100A8 is involved in TLR4, Src family protein, PKCδ, ERK1/2, p38 MAPK, JNK, and NF-κB. These findings may contribute to understanding the complex pathogenesis of allergic diseases by determining inflammatory responses associated with S100A8, monocytes, and neutrophils.

키워드

Allergy; Monocytes; Neutrophils apoptosis; S100

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