Abstract:
:Interaction of proteases with cell surface receptors may modulate cell adhesion, migration, invasion, and matrix degradation. Since the plasminogen activator system has been hypothesized to play a role in intimal thickening after various types of vascular injury, we first studied the expression of urokinase receptor (u-PAR) protein and mRNA by smooth muscle cells (SMC) grown in explant cultures from normal and diseased vessels. Using equilibrium binding studies with radiolabeled 125I-labeled single chain urokinase-type plasminogen activator (scu-PA), we determined that SMC cultured from atherosclerotic arteries expressed a higher maximal number of binding sites/cell (3.6 +/- 0.4 x 10(5) sites/cell vs. 2.1 +/- 0.3 x 10(5), +/- SEM, p < 0.05) with a similar affinity (Kd = 1.5 +/- 0.1 vs. 1.2 +/- 0.2 nM, p = ns). However, SMC subcultured from diseased saphenous vein grafts expressed the highest levels of u-PAR compared to SMC from normal saphenous vein (4.8 +/- 0.6 x 10(5) sites/cell vs. 1.6 +/- 0.9 x 10(5), +/- SEM, p < 0.05). Using binding studies and Northern analysis, we demonstrated a dose and time dependent upregulation of u-PAR protein and mRNA expression respectively in human SMC in response to serum stimulation. Using a rabbit specific u-PAR cDNA probe, we demonstrated a similar upregulation of u-PAR mRNA both in rabbit aortic SMC in culture in response to serum stimulation and up to a 20 fold increase in u-PAR mRNA in rabbit jugular veins in response to implantation as arterial grafts in vivo. Finally, to confirm that u-PAR mRNA is upregulated in human vessels after injury, we performed immunohistochemistry and in situ hybridization studies on coronary arteries, normal saphenous veins and saphenous veins from 10 weeks to 13 years after implantation as grafts. u-PAR mRNA was found mainly in the periadventitial microcirculation in normal veins, but was found to be upregulated in the neointima and media of thickened veins in both macrophages and smooth muscle cells. SMC near the internal elastic laminae in diseased coronary arteries appeared to express increased u-PAR mRNA. These data suggest that this increased expression of u-PAR may contribute to early lesion development.
journal_name
Thromb Haemostjournal_title
Thrombosis and haemostasisauthors
Okada SS,Golden MA,Raghunath PN,Tomaszewski JE,David ML,Kuo A,Kariko K,Barnathan ESsubject
Has Abstractpub_date
1998-07-01 00:00:00pages
140-7issue
1eissn
0340-6245issn
2567-689Xpii
98070140journal_volume
80pub_type
杂志文章abstract::Fibrinolytic therapy can result in rapid lysis of deep vein thrombi (DVT), but its use is limited by the failure of many patients to respond and by the increased risk of bleeding complications in comparison with anticoagulant therapy alone. Treatment could be improved by the ability to select patients most likely to r...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1995-03-01 00:00:00
abstract::The effects on platelet function of a 5-day course of Ticlopidine (Tcl) have been studied in two groups of volunteers receiving different dosage schedules. Tcl had a relatively greater inhibitory effect on aggregation induced by ADP than by other agonists, and a greater effect, in contrast to that of an ADP receptor a...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1990-08-13 00:00:00
abstract::An increased prevalence of hypertension is reported in haemophilia patients, but data from large, unbiased studies are lacking. The aim of our study was to cross-sectionally assess the prevalence of hypertension in a large cohort of 701 haemophilia patients. Blood pressure (BP) measurements performed in 386 Dutch and ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,多中心研究
doi:10.1160/TH12-05-0313
更新日期:2012-10-01 00:00:00
abstract::The structural and functional properties of plasma and platelet vWF were studied in 8 patients (5 unrelated families) with vWD demonstrating a mutation at position 611 (R611C or R611H). Following reduction, electrophoresis and immunoblotting with a polyclonal anti-reduced vWF antibody, abnormal proteolysis of vWF was ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1997-01-01 00:00:00
abstract::Atherosclerotic plaque rupture may trigger the formation of mural thrombus. This thrombus formation is apparently affected by very high and complex shear conditions introduced by the luminal narrowing (stenosis) of the atheroma. To study the impact of such blood flow behaviour on thrombus formation we employed a model...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1996-04-01 00:00:00
abstract:: ...
journal_title:Thrombosis and haemostasis
pub_type: 社论
doi:10.1055/s-0038-1676073
更新日期:2018-12-01 00:00:00
abstract::The carboxy-terminal region of hirudin (residues 54-65) has previously been shown to inhibit thrombin clotting activity without binding to the catalytic site of the enzyme. In the present study, the effect of hirudin 54-65 on thrombin interaction with specified platelet proteins has been investigated. Hirudin 54-65 wa...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1991-09-02 00:00:00
abstract::The aim of this observational cohort study was to specify the risk of the vitamin K antagonist (VKA) phenprocoumon during first trimester of pregnancy, in particular to estimate the risk of birth defects and spontaneous fetal loss. Four hundred eight pregnancies with phenprocoumon exposure were compared to 1,642 pregn...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH16-11-0838
更新日期:2017-05-03 00:00:00
abstract::Recently we prepared sulfated, low-molecular-weight lignins (LMWLs) to mimic the biological activities of heparin and heparan sulfate. Chemo-enzymatically prepared sulfated LMWLs represent a library of diverse non-sugar, aromatic molecules with structures radically different from the heparins, and have been found to p...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH09-07-0454
更新日期:2010-03-01 00:00:00
abstract::Plasminogen activator inhibitor 1 (PAI-1) is the main inhibitor of tissue-type and urokinase-type plasminogen activators (t/uPA) and plays an important role in fibrinolysis. Inhibition of PAI-1 activity prevents thrombosis and accelerates fibrinolysis, indicating that PAI-1 inhibitors may be used as effective antithro...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH16-11-0891
更新日期:2017-06-28 00:00:00
abstract::The behavior of direct fibrinolytic (non-plasmin) proteinase activity and plasminogen-activator activity in the lung and spleen was investigated in rats after a single intravenous injection of bacterial endotoxin, and the influence of thrombin inhibitors on the effects of the endotoxin was assessed. The non-plasmin fi...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1985-06-24 00:00:00
abstract:BACKGROUND:Preliminary evidence suggests that use of antipsychotic drugs is associated with an increased risk of venous thromboembolism. OBJECTIVE:To evaluate the relationship between antipsychotic or antidepressant drug use and venous thromboembolism among adults aged 65 years and older. DESIGN:Retrospective cohort ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2002-08-01 00:00:00
abstract:BACKGROUND AND AIM: Previous studies indicated that the HDAC3 and HDAC9 genes play critical roles in atherosclerosis and ischemic stroke (IS). The purpose of this study was to investigate the association of combined single-nucleotide polymorphisms in the HDAC3 and HDAC9 genes with the susceptibility to IS. METHODS: A ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1055/s-0040-1717116
更新日期:2020-09-22 00:00:00
abstract::Antithrombin III (ATIII) deficiency is one of the few known abnormalities of the coagulation system known to predispose to venous thromboembolism but its relation to arterial disease is not established. We describe two related patients with this disorder, both of whom suffered arterial thrombotic events, at an early a...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1990-02-19 00:00:00
abstract::This study was carried out in order to compare the coagulation balance in patients with colorectal cancer before and after surgical removal of tumor with an age matched non-malignancy control group. Furthermore, it was studied whether preoperative coagulation state in cancer patients was correlated to the postoperativ...
journal_title:Thrombosis and haemostasis
pub_type: 临床试验,杂志文章
doi:
更新日期:1996-10-01 00:00:00
abstract::The A4070G polymorphism in exon 13 of the factor V (FV) gene, which replaces His by Arg at position 1299 of the B domain, was recently shown to influence circulating FV levels and to contribute to the activated protein C (APC) resistance phenotype. We examined the impact of this polymorphism in a population of unselec...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1999-02-01 00:00:00
abstract::Vessel wall matrix changes occur after injury, although this has not been well studied in the venous system. This study tested the hypothesis that the thrombus dictates the vein wall response and vein wall damage is directly related to the duration of thrombus contact. To determine the injury response over time, rats ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2007-11-01 00:00:00
abstract::The aim of this study was to evaluate the existence of an additive effect between standard heparin and dDAVP in the enhancement of endogenous fibrinolysis. Eight healthy volunteers were studied in a randomized double blind placebo controlled cross-over trial. The volunteers were treated i.v. with dDAVP, 0.4 micrograms...
journal_title:Thrombosis and haemostasis
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1989-06-30 00:00:00
abstract::By a method of counting single platelets in diluted whole blood, platelet aggregates were quantified ex-vivo. Four groups: 20 thrombotic patients, 10 non-thrombotic patients, 10 healthy old controls and 10 healthy young controls were included in the study. Using a 19 gauge needle, with and without tubing, venous blood...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1986-08-20 00:00:00
abstract::Individuals with lupus anticoagulants (LA) are at risk for thromboembolism (TE). Chronic inflammation is an important characteristic in LA patients which may dispose for TE. Platelets play a key role in inflammation and TE. We therefore investigated gene polymorphisms as well as plasma levels of platelet receptors as ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2007-04-01 00:00:00
abstract::A previous study of neurosurgical patients demonstrated an imbalance between thrombin and plasmin action following surgery. The present study was designed to determine the effect of intermittent pneumatic calf compression on postoperative enzyme activity. Fibrinopeptide A (FPA) and B beta 1-42 levels, reflecting throm...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1986-10-21 00:00:00
abstract::Hyperglycemia-induced mitochondrial overproduction of reactive oxygen species leads to the activation of different biochemical pathways involved in endothelial damage of the diabetic retina. Tenilsetam [(+/-)-3-(2-thienyl)-2-piperazinone] is a dicarbonyl scavenger in the millimolar range and a transition metal ion che...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2006-04-01 00:00:00
abstract::The salivary complex of the leech Haementeria depressa produces potent anticoagulant components. Among them, a protein named lefaxin inhibits factor Xa (FXa). Lefaxin was purified to homogeneity from dissected salivary complexes by gel filtration in Sephadex G-150 followed by two ion exchange chromatography steps in M...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1999-11-01 00:00:00
abstract::We investigated the prevalence of the new recently reported mutation in the prothrombin gene (20210 A) in a sample of 116 unrelated patients with venous thromboembolism. We found 20 heterozygous carriers (17.2%, CI 95% 10.4-21.1). In comparison, we observed 13 carriers among 201 healthy unmatched controls (6.5%, CI 3....
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1998-09-01 00:00:00
abstract::To find if there is a relation between levels of haemostatic variables at low and high hormonal levels (oestradiol and progesterone) in an individual, blood samples were drawn from 12 women repeatedly during one menstrual cycle (Study I) and from 14 women undergoing in vitro fertilization, before hormonal stimulation ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1997-05-01 00:00:00
abstract::Tissue factor (TF), the main initiator of blood coagulation, contributes to the manifestation of disseminated intravascular coagulation following septic shock in meningococcal infection. Since a direct relationship between disease severity and lipopolysaccharide (LPS) concentration in the circulation has been shown, w...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH05-07-0463
更新日期:2005-12-01 00:00:00
abstract::The evidence is reviewed and a model presented for two distinct receptors being involved in platelet activation induced by alpha-thrombin: a high affinity thrombin receptor constituting approximately 50 copies of a supercomplexed form of GPIb coupled to phospholipase A2 and a moderate affinity receptor constituting ap...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
doi:
更新日期:1997-07-01 00:00:00
abstract::The glycosaminoglycan, heparan sulfate (HS) is composed of alternating units of hexuronic acid and glucosamine, that are variously sulfate-substituted at different positions. Proteoglycans carrying HS chains are ubiquitously expressed at cell surfaces and in the extracellular matrix. The structures of these chains are...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
doi:
更新日期:2007-07-01 00:00:00
abstract::Macrophages are highly heterogeneous and plastic cells. They were shown to play a critical role in all stages of atherogenesis, from the initiation to the necrotic core formation and plaque rupture. Lesional macrophages primarily derive from blood monocyte, but local macrophage proliferation as well as differentiation...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
doi:10.1160/TH16-08-0593
更新日期:2017-01-05 00:00:00
abstract::A ternary equimolar human plasmin B-chain-streptokinase-plasminogen complex was isolated from a mixture of the plasmin B-chain-streptokinase complex and human plasminogen at 0 degrees C and 37 degrees C. A ternary complex which was shown to be species specific, was identified and characterized by ultracentrifugal, acr...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1987-08-04 00:00:00