Human polymorphonuclear neutrophil activation with arachidonic acid

Human polymorphonuclear neutrophil activation with arachidonic acid
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花生四烯酸激活人多形核中性粒细胞

DOI:
--
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发表时间:
1987
影响因子:
7.3
通讯作者:
D. Epps
D. Epps
中科院分区:
医学2区
文献类型:
--
作者:
Robert J. Smith;L. M. Sam;J. M. Justen;K. Leach;D. Epps

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1研究了花生四烯酸(AA)对人中性粒细胞(PMNs)颗粒胞吐的刺激作用。2 AA以时间和浓度依赖性方式诱导人PMN中嗜天青细胞(髓过氧化物酶,溶菌酶)和特异性颗粒成分(溶菌酶,维生素B12结合蛋白)的选择性细胞外释放。3细胞松弛素B(CB)增强AA对PMN的激活作用,但不是必需的。4虽然细胞外钙对颗粒胞吐没有影响,但AA确实刺激了细胞内螯合的Ca 2+的动员,导致胞浆游离Ca 2+([Ca 2 +]i)增加,如Fura-2处理细胞的荧光增加所反映的。5 AA刺激PMN中的Ca 2 +/磷脂依赖性蛋白激酶C(PK-C)活性。6阴离子通道阻断剂4,4 ′-二异硫氰基-2,2 ′-二磺酸二苯乙烯(DIDS)对颗粒酶释放具有浓度依赖性抑制作用。7 AA对PMN的激活不受脂氧合酶/环加氧酶抑制剂5,8,11,14-二十碳四炔酸(ETYA)和苯恶洛芬(一种脂氧合酶抑制剂)6,9,去环氧基-6,9-(苯基亚氨基)-Δ 6,8-前列腺素11(吡前列素钾)或纯环加氧酶抑制剂氟比洛芬的影响。8这些数据定义了AA作为人PMN分泌刺激物的性质。
1 The capacity of arachidonic acid (AA) to stimulate granule exocytosis from human polymorphonuclear neutrophils (PMNs) was investigated. 2 AA induced the selected extracellular release of azurophil (myeloperoxidase, lysozyme) and specific (lysozyme, vitamin B12 binding protein) granule constituents from human PMNs in a time‐and concentration‐dependent manner. 3 Cytochalasin B (CB) enhanced but was not required for PMN activation with AA. 4 Although extracellular calcium had no effect on granule exocytosis, AA did stimulate the mobilization of intracellular sequestered Ca2+ which resulted in an increase in cytosolic‐free Ca2+ ([Ca2+]i) as reflected by increased fluorescence of Fura‐2‐treated cells. 5 AA stimulated Ca2+/phospholipid‐dependent protein kinase C (PK‐C) activity in PMNs. 6 4,4′‐Diisothiocyano‐2,2′‐disulphonic acid stilbene (DIDS), an anion channel blocker, caused a concentration‐dependent inhibition of granule enzyme release. 7 Activation of PMNs with AA was unaffected by the lipoxygenase/cyclo‐oxygenase inhibitors, 5,8,11, 14‐eicosatetraynoic acid (ETYA) and benoxaprofen, a lipoxygenase inhibitor, 6, 9, deepoxy‐6,9‐(phenylimino)‐Δ6,8‐prostaglandin 11 (piriprost potassium) or a pure cyclo‐oxygenase inhibitor, flurbiprofen. 8 These data define the properties of AA as a secretory stimulus for human PMNs.
促分泌素诱导的人白细胞中的磷酸肌醇代谢。
DOI: 10.1042/bj2220307
发表时间: 1984
期刊: The Biochemical journal
影响因子: --
作者:
Dougherty,RW;Godfrey,PP;Hoyle,PC;PutneyJr,JW;Freer,RJ
通讯作者: Freer,RJ
DOI: --
发表时间: 1985
期刊: The Journal of biological chemistry
影响因子: --
作者:
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N 蛋白对磷酸肌醇特异性磷脂酶 C 的受体偶联激活。
DOI: 10.1126/science.3006254
发表时间: 1986
期刊: Science (New York, N.Y.)
影响因子: --
作者:
Smith,CD;Cox,CC;Snyderman,R
通讯作者: Snyderman,R
DOI: --
发表时间: 1984
期刊: The Journal of biological chemistry
影响因子: --
作者:
Badwey,JA;Curnutte,JT;Robinson,JM;Berde,CB;Karnovsky,MJ;Karnovsky,ML
通讯作者: Karnovsky,ML
花生四烯酸激活人粒细胞:其在研究粒细胞功能方面的用途和局限性。
DOI: --
发表时间: 1986
期刊: Blood
影响因子: 20.3
作者:
Cohen,HJ;Chovaniec,ME;Takahashi,K;Whitin,JC
通讯作者: Whitin,JC