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血小板激活因子(1-O-十六烷基/十八烷基-2-乙酰基-sn-甘油-3-磷酸胆碱)诱导的纤维蛋白原与血小板的结合依赖于代谢能量。

PAF-acether (1-O-hexadecyl/octadecyl-2-acetyl-sn-glycero-3-phosphocholine)-induced fibrinogen binding to platelets depends on metabolic energy.

作者信息

Kloprogge E, Hasselaar P, Akkerman J W

出版信息

Biochem J. 1986 Sep 15;238(3):885-91. doi: 10.1042/bj2380885.

DOI:10.1042/bj2380885
PMID:3800968
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC1147218/
Abstract

A combination of CN- and 2-deoxy-D-glucose decreases the binding of fibrinogen to platelets stimulated with PAF-acether (1-O-hexadecyl/octadecyl-2-acetyl-sn-glycero-3-phosphocholine). Decreased binding is found after pretreatment with metabolic inhibitors, thereby lowering the energy content before stimulation as well as at various stages after stimulation of undisturbed cells. Binding and ATP hydrolysis occur in parallel, suggesting tight coupling between both phenomena. Energy appears to be predominantly required for exposure and maintenance of accessible binding sites, whereas the interaction between fibrinogen and the exposed sites does not depend on metabolic energy.

摘要

氰离子(CN-)与2-脱氧-D-葡萄糖的组合可降低纤维蛋白原与由血小板激活因子(1-O-十六烷基/十八烷基-2-乙酰基-sn-甘油-3-磷酸胆碱)刺激的血小板的结合。在用代谢抑制剂预处理后发现结合减少,从而降低了未受干扰细胞在刺激前以及刺激后各个阶段的能量含量。结合与ATP水解同时发生,表明这两种现象之间紧密偶联。能量似乎主要用于暴露和维持可及的结合位点,而纤维蛋白原与暴露位点之间的相互作用并不依赖于代谢能量。

相似文献

1
PAF-acether (1-O-hexadecyl/octadecyl-2-acetyl-sn-glycero-3-phosphocholine)-induced fibrinogen binding to platelets depends on metabolic energy.血小板激活因子(1-O-十六烷基/十八烷基-2-乙酰基-sn-甘油-3-磷酸胆碱)诱导的纤维蛋白原与血小板的结合依赖于代谢能量。
Biochem J. 1986 Sep 15;238(3):885-91. doi: 10.1042/bj2380885.
2
Kinetics of platelet-activating factor 1-O-alkyl-2-acetyl-sn-glycero-3-phosphocholine-induced fibrinogen binding to human platelets.
J Biol Chem. 1986 Aug 25;261(24):11071-6.
3
Binding kinetics of PAF-acether (1-O-alkyl-2-acetyl-sn-glycero-3-phosphocholine) to intact human platelets.血小板活化因子(1-O-烷基-2-乙酰基-sn-甘油-3-磷酸胆碱)与完整人血小板的结合动力学
Biochem J. 1984 Nov 1;223(3):901-9. doi: 10.1042/bj2230901.
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The enantiomer and the positional isomer of platelet-activating factor.血小板激活因子的对映体和位置异构体。
Biochim Biophys Acta. 1983 Feb 22;755(3):526-30. doi: 10.1016/0304-4165(83)90260-x.
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Platelet-activating factor (PAF-acether) induces high- and low-affinity binding of fibrinogen to human platelets via independent mechanisms.血小板活化因子(PAF-乙酰醚)通过独立机制诱导纤维蛋白原与人类血小板的高亲和力和低亲和力结合。
Biochem J. 1986 Dec 1;240(2):403-12. doi: 10.1042/bj2400403.
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1-O-hexadecyl-2-acetyl-sn-glycero-3-phospho (N,N,N trimethyl) hexanolamine: an analogue of platelet-activating factor with partial agonist activity.1-O-十六烷基-2-乙酰基-sn-甘油-3-磷酸(N,N,N-三甲基)己醇胺:一种具有部分激动剂活性的血小板活化因子类似物。
Br J Pharmacol. 1991 Sep;104(1):171-7. doi: 10.1111/j.1476-5381.1991.tb12403.x.
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Cooperative effects of 1-O-alkyl-2-O-acetyl-sn-glycero-3-phosphocholine (PAF-acether) and exogenous arachidonic acid in stimulation of human blood platelets.
Thromb Res. 1984 Feb 15;33(4):409-18. doi: 10.1016/0049-3848(84)90080-x.
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Platelet-stimulating and membranolytic properties of racemic PAF-acether and analogues.
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Effect of synthetic phospholipids on platelet aggregation and serotonin release.合成磷脂对血小板聚集和5-羟色胺释放的影响。
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10
Effect of calcium and calcium antagonists on [3H]-Paf-acether binding to washed human platelets.
Thromb Res. 1986 Jan 15;41(2):251-62. doi: 10.1016/0049-3848(86)90233-1.

引用本文的文献

1
Exposure of ligand-binding sites on platelet integrin alpha IIB/beta 3 by phosphorylation of the beta 3 subunit.通过β3亚基的磷酸化暴露血小板整合素αIIB/β3上的配体结合位点。
Biochem J. 1996 Mar 15;314 ( Pt 3)(Pt 3):769-79.
2
Protein kinase C and cyclic AMP regulate reversible exposure of binding sites for fibrinogen on the glycoprotein IIB-IIIA complex of human platelets.蛋白激酶C和环磷酸腺苷调节人血小板糖蛋白IIb-IIIa复合物上纤维蛋白原结合位点的可逆暴露。
Biochem J. 1991 Jan 1;273(Pt 1)(Pt 1):115-20. doi: 10.1042/bj2730115.

本文引用的文献

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Protein measurement with the Folin phenol reagent.使用福林酚试剂进行蛋白质测定。
J Biol Chem. 1951 Nov;193(1):265-75.
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Fibrinogen receptor exposure and aggregation of human blood platelets produced by ADP and chilling.由二磷酸腺苷(ADP)和冷却导致的人血小板纤维蛋白原受体暴露及聚集
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Radioactive labeling of the adenine nucleotide pool of cells as a method to distinguish among intracellular compartments. Studies on human platelets.将细胞腺嘌呤核苷酸库进行放射性标记作为区分细胞内区室的一种方法。对人血小板的研究。
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A novel technique for rapid determination of energy consumption in platelets. Demonstration of different energy consumption associated with three secretory responses.一种快速测定血小板能量消耗的新技术。三种分泌反应相关的不同能量消耗的证明。
Biochem J. 1983 Jan 15;210(1):145-55. doi: 10.1042/bj2100145.
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Enzyme immunoassay for factor VIII-related antigen.因子VIII相关抗原的酶免疫测定法。
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Receptor capping in platelet membranes.
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Close correlation between platelet responses and adenylate energy charge during transient substrate depletion.短暂底物耗尽期间血小板反应与腺苷酸能荷之间的密切相关性。
Biochim Biophys Acta. 1983 Oct 4;760(1):34-41. doi: 10.1016/0304-4165(83)90121-6.
10
Metabolic energy is required in human platelets at any stage during optical aggregation and secretion.在光学聚集和分泌过程中的任何阶段,人体血小板都需要代谢能量。
Biochim Biophys Acta. 1984 Aug 21;800(3):242-50. doi: 10.1016/0304-4165(84)90402-1.