Granulocyte-macrophage colony-stimulating factor induces activation and restores respiratory burst activity in monocytes from septic patients.

Granulocyte-macrophage colony-stimulating factor induces activation and restores respiratory burst activity in monocytes from septic patients.
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粒细胞巨噬细胞集落刺激因子诱导脓毒症患者单核细胞活化并恢复呼吸爆发活性。

DOI:
10.1086/513802
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发表时间:
1998
期刊:
The Journal of infectious diseases
影响因子:
--
通讯作者:
Stephen M. Kelsey
Stephen M. Kelsey
中科院分区:
--
文献类型:
--
作者:
Marc A. Williams;S. White;Jessica J. Miller;Christopher C. Toner;S. Withington;Adrian C. Newland;Stephen M. Kelsey

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在体外检测了感染性休克患者单核细胞对重组人粒细胞-巨噬细胞集落刺激因子(GM-CSF)的激活。这些单核细胞表现出更大的呼吸爆发活性比单核细胞从健康受试者,与细菌刺激的二次刺激的反应减弱。GM-CSF恢复了单核细胞对二次刺激的适当反应的能力。感染性休克患者单核细胞上某些整合素粘附分子、L-选择素和Fc γ受体的表达增加; CD 11 c的表达减少。GM-CSF上调整合素表达,降低L-选择素、Fc γ RII和Fc γ RIII表达。脓毒症患者单核细胞组织因子的生物活性高于健康人。用脂多糖和细菌培养上清液刺激后,用GM-CSF引发单核细胞加速组织因子活化。单核细胞功能的某些参数可以通过暴露于GM-CSF来恢复。这种益处可能被单核细胞促凝血活性的增加所抵消。
Monocyte activation in response to recombinant human granulocyte-macrophage colony-stimulating factor (GM-CSF) was examined in vitro in septic shock patients. These monocytes exhibited a greater respiratory burst activity than monocytes from healthy subjects; the response to secondary stimulation with bacterial stimuli was attenuated. GM-CSF restored the ability of monocytes to respond appropriately to secondary stimulation. Expression of certain integrin adhesion molecules, L-selectin, and Fcgamma receptors was increased on monocytes of septic shock patients; expression of CD11c was reduced. GM-CSF up-regulated integrin expression and decreased L-selectin, FcgammaRII, and FcgammaRIII expression. Septic patients exhibited greater biologic activity of monocyte tissue factor than did healthy subjects. Priming monocytes with GM-CSF accelerated tissue factor activation following stimulation with lipopolysaccharide and bacterial culture supernatant. Certain parameters of monocyte function may be restored by exposure to GM-CSF. This benefit may be offset by an increase in monocyte procoagulant activity.
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