...
首页> 外文期刊>Platelets >Properties of soluble glycoprotein VI, a potential platelet activation biomarker
【24h】

Properties of soluble glycoprotein VI, a potential platelet activation biomarker

机译:可溶性糖蛋白VI的特性,潜在的血小板活化生物标志物

获取原文
获取原文并翻译 | 示例
           

摘要

Glycoprotein VI (GPVI) plays a critical role in the platelet response to collagen. Clinical studies suggest that the plasma level of soluble GPVI (sGPVI) is a highly specific and useful platelet activation marker. However, many properties of sGPVI have not been fully characterized, such as its sensitivity in detecting platelet activation and its elimination rate from the blood. In this study we established a sandwich enzyme-linked immunosorbent assay for human sGPVI, which cross-reacts to cynomolgus monkey sGPVI, and evaluated the time course of sGPVI production in a cynomolgus monkey model of lipopolysaccharide (LPS)-induced thrombocytopenia. The sGPVI levels in this model were dramatically elevated and returned to baseline by 24 hours after LPS injection, the change was more pronounced than the existing platelet activation biomarker, soluble P-selectin (sP-selectin) levels. The elimination half-life of recombinant human sGPVI was about 2.5 hours following intravenous administration to monkeys. These results suggest that plasma sGPVI closely reflects platelet activation in the bloodstream and has a short half-life. sGPVI would be a useful biomarker for disorders marked by platelet activation and for monitoring anti-platelet therapy.
机译:糖蛋白VI(GPVI)在血小板对胶原蛋白的反应中起关键作用。临床研究表明,可溶性GPVI(sGPVI)的血浆水平是高度特异性和有用的血小板活化标记物。但是,sGPVI的许多特性尚未完全表征,例如它在检测血小板活化中的敏感性及其从血液中的清除率。在这项研究中,我们建立了针对人sGPVI的夹心酶联免疫吸附试验,该酶与食蟹猴sGPVI发生交叉反应,并在脂多糖(LPS)诱导的血小板减少症的食蟹猴模型中评估了sGPVI产生的时间过程。在LPS注射后24小时,该模型中的sGPVI水平显着升高并恢复到基线,该变化比现有的血小板活化生物标志物可溶性P-选择素(sP-选择素)水平更为明显。重组人sGPVI的消除半衰期在向猴子静脉内给药后约2.5小时。这些结果表明血浆sGPVI紧密反映了血液中的血小板活化,并且半衰期短。 sGPVI将是有用的生物标志物,用于以血小板活化为特征的疾病和监测抗血小板治疗。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号