Activation of NADPH-dependent superoxide production in plasma membrane extracts of pig neutrophils by phosphatidic acid.

Activation of NADPH-dependent superoxide production in plasma membrane extracts of pig neutrophils by phosphatidic acid.
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磷脂酸激活猪中性粒细胞质膜提取物中 NADPH 依赖性超氧化物的产生。

DOI:
10.1016/s0021-9258(18)68464-9
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发表时间:
1988
期刊:
The Journal of biological chemistry
影响因子:
--
通讯作者:
F. Rossi
F. Rossi
中科院分区:
--
文献类型:
--
作者:
P. Bellavite;F. Corso;S. Dusi;M. Grzeskowiak;V. Della;F. Rossi

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磷脂酸(PA)是一种由包括血中性粒细胞在内的各种细胞中磷脂的刺激周转而迅速产生的分子,它可以在静息的猪中性粒细胞膜上的洗涤剂提取物中诱导NADPH依赖的超氧阴离子(O2-)产生。PA的刺激作用不依赖于胞浆因子,与花生四烯酸和十二烷基硫酸钠不同,后者完全需要胞浆的存在才能产生同样的结果。在含有细胞色素b558的层析组分中发现了可被PA激活的洗涤剂提取物的O2(-)形成活性,与十二烷基硫酸钠和花生四烯酸加胞浆激活的活性一样,并且呈现出与用佛波醇12-肉豆蔻酸酯13-醋酸酯预刺激的中性粒细胞获得的NADPH氧化酶相同的层析图谱。PA诱导的NADPH依赖的O2(-)形成活性表现出与经典的激活中性粒细胞NADPH氧化酶类似的动力学特性和对抑制剂的敏感性。这些数据表明,在这个无细胞系统中,PA可能通过与中性粒细胞潜伏的NADPH氧化酶或其某些调节成分直接相互作用来刺激O2-的形成。
Phosphatidic acid (PA), a molecule that is rapidly produced by the stimulated turnover of phospholipids in a variety of cells including blood neutrophils, elicited NADPH-dependent superoxide anion (O2-) production in detergent extracts from membranes of resting pig neutrophils. The stimulatory effect of PA was independent of cytosolic factors, differing from arachidonic acid and sodium dodecyl sulfate which, on the contrary, absolutely required the presence of cytosol to elicit the same result. The O2(-)-forming activity of the detergent extract activable by PA, as that by sodium dodecyl sulfate and arachidonic acid plus cytosol, was found in the chromatographic fractions containing cytochrome b558 and presented a chromatographic profile identical to that of the activated NADPH oxidase, which was obtained from neutrophils prestimulated with phorbol 12-myristate 13-acetate. The PA-induced NADPH-dependent O2(-)-forming activity showed kinetic properties and sensitivity to the inhibitors similar to the classical ones of the activated neutrophil NADPH oxidase. The data suggest that, in this cell-free system, PA may stimulate O2- formation by direct interaction with latent NADPH oxidase of neutrophils or with some of its regulatory components.
花生四烯酸对 NADPH 氧化酶的激活涉及完整人中性粒细胞中的磷脂酶 A2,但在无细胞系统中则不然。
DOI: 10.1016/s0006-291x(86)80395-3
发表时间: 1986
影响因子: 3.1
作者:
Maridonneau-Parini,I;Tauber,AI
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DOI: 10.4049/jimmunol.137.9.2925
发表时间: 1986-11
影响因子: 4.4
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通讯作者: I. Maridonneau-Parini;S. Tringale;A. Tauber
趋化因子导致兔中性粒细胞中磷脂酰肌醇、4,5-二磷酸和磷脂酰肌醇4-单磷酸快速减少。
DOI: 10.1016/0006-291x(83)91711-4
发表时间: 1983
影响因子: 3.1
作者:
Volpi,M;Yassin,R;Naccache,PH;Sha'afi,RI
通讯作者: Sha'afi,RI
DOI: 10.1172/jci110957
发表时间: 1983
期刊: The Journal of clinical investigation
影响因子: --
作者:
McPhail,LC;Snyderman,R
通讯作者: Snyderman,R
DOI: 10.1172/jci111884
发表时间: 1985
期刊: The Journal of clinical investigation
影响因子: --
作者:
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通讯作者: Snyderman,R