Soluble Thrombomodulin Purified from Human Urine Exhibits a Potent Anticoagulant Effect In Vitro and In Vivo

Soluble Thrombomodulin Purified from Human Urine Exhibits a Potent Anticoagulant Effect In Vitro and In Vivo
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从人尿液中纯化的可溶性血栓调节蛋白在体外和体内均表现出有效的抗凝作用

DOI:
10.1055/s-0038-1653872
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发表时间:
1995
影响因子:
6.7
通讯作者:
A. Uemura
A. Uemura
中科院分区:
医学2区
文献类型:
--
作者:
Y. Takahashi;Yoshitaka Hosaka;H. Niina;K. Nagasawa;M. Naotsuka;K. Sakai;A. Uemura

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我们检测了从人尿中纯化的可溶性血栓调节蛋白的两种主要分子的抗凝活性。这些尿血栓调节蛋白(UTM)的表观分子量分别为72,000和79,000。两种UTM均显示出比人胎盘血栓调节蛋白(2,180 TMU/mg)和兔肺血栓调节蛋白(1,980 TMU/mg)更有效的蛋白C活化辅因子活性[比活性> 5,000血栓调节蛋白单位(TMU)/mg]。UTM以剂量依赖性方式延长凝血酶诱导的纤维蛋白原凝血时间(>1 TMU/ml)、APTT(>5 TMU/ml)、TT(>5 TMU/ml)和PT(>40 TMU/ml)。这些效应出现在人血浆和尿液中可溶性血栓调节蛋白的浓度范围内。在由促凝血酶原激酶诱导的大鼠DIC模型中,通过输注给予UTM(300- 3,000 TMU/kg)以剂量依赖性方式恢复了源自DIC的血液学异常。这些结果表明,UTM具有强大的抗凝和抗血栓活性,并可能在微循环中发挥重要的生理作用。
Summary We examined the anticoagulant activity of two major molecules of soluble thrombomodulin purified from human urine. The apparent molecular weights of these urinary thrombomodulins (UTMs) were 72,000 and 79,000, respectively. Both UTMs showed more potent cofactor activity for protein C activation [specific activity >5,000 thrombomodulin units (TMU)/mg] than human placental thrombomodulin (2,180 TMU/mg) and rabbit lung thrombomodulin (1,980 TMU/mg). The UTMs prolonged thrombin-induced fibrinogen clotting time (>1 TMU/ml), APTT (>5 TMU/ml), TT (>5 TMU/ml) and PT (>40 TMU/ml) in a dose-dependent fashion. These effects appeared in the concentration range of soluble thrombomodulins present in human plasma and urine. In the rat DIC model induced by thromboplastin, administration of UTMs by infusion (300-3,000 TMU/kg) restored the hematological abnormalities derived from DIC in a dose-dependent fashion. These results demonstrate that UTMs exhibit potent anticoagulant and antithrombotic activities, and could play a physiologically important role in microcirculation.
DOI: 10.1016/s0021-9258(19)68276-1
发表时间: 1982-01
期刊: The Journal of biological chemistry
影响因子: --
作者:
N. Esmon;W. Owen;C. Esmon
通讯作者: N. Esmon;W. Owen;C. Esmon
活化蛋白 C 的纤溶作用的物种特异性。
DOI: 10.1016/0049-3848(91)90275-2
发表时间: 1991
影响因子: 7.5
作者:
Weinstein,RE;Walker,FJ
通讯作者: Walker,FJ
DOI: 10.1073/pnas.78.4.2249
发表时间: 1981-01-01
期刊: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子: --
作者:
ESMON, CT;OWEN, WG
通讯作者: OWEN, WG