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Plasminogen activator inhibitor
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A complex set of perturbations occur in cytokines and hormones in the etiopathogenesis of obesity and related cardiometabolic conditions such as type 2 diabetes (T2D). Evidence for the genetic regulation of these cytokines and hormones is limited, particularly in African-ancestry populations. In order to improve our understanding of the biology of cardiometabolic traits.
21p
vibransone
28-03-2024
2
2
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Coagulation and fibrinolysis are distinct processes that are highly correlated. Cells control coagulation and fibrinolysis by expression of tissue factor and urokinase-type plasminogen activator receptor on their surface.
12p
vialfrednobel
23-12-2023
4
3
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Carriers of plasminogen activator inhibitor -1 (PAI-1) -675 genotype 5G/5G may be associated with lower preoperative PAI-1 plasma levels and higher blood loss after heart surgery using cardiopulmonary bypass (CPB). We speculate if polymorphisms of PAI-1 -844 A/G and angiotensin converting enzyme (ACE) intron 16 I/D also might promote fibrinolysis and increase postoperative bleeding.
8p
viisaacnewton
25-04-2022
13
1
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Enhanced bleeding remains a serious problem after cardiac surgery, and fibrinolysis is often involved. We speculate that lower plasma concentrations of plasminogen activator inhibitor – 1 (PAI-1) preoperatively and tissue plasminogen activator/PAI-1 (t-PA/PAI-1) complex postoperatively might predispose for enhanced fibrinolysis and increased postoperative bleeding.
7p
viisaacnewton
26-04-2022
14
1
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Trong nghiên cứu này, sử dụng kĩ thuật khuếch đại đặc hiệu allen (ARMS – PCR) để phân tích 4 biến thể ở 3 gen có tần số biến đổi cao là Methylenetetrahydrofolate reductase (MTHFR C677T và MTHFR A1298C), Factor V Leiden (FVL C1691T) và Plasminogen activator inhibitor-1 (PAI-1 4G/5G).
8p
meyerowitz
25-12-2021
20
0
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Subchondral osteopenia is important for the pathophysiology of osteoarthritis (OA). Although previous studies suggest that plasminogen activator inhibitor-1 (PAI-1), an inhibitor of fibrinolysis, is related to bone metabolism, its role in OA remains unknown.
8p
vitennessee2711
02-02-2021
7
1
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Plasminogen activator inhibitor 1 (PAI-1) overexpression is an important prognostic and predictive biomarker in human breast cancer. SERBP1, a protein that is supposed to regulate the stability of PAI-1 mRNA, may play a role in gynaecological cancers as well, since upregulation of SERBP1 was described in ovarian cancer recently.
13p
vijisoo2711
30-09-2020
5
1
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Members of the urokinase-type plasminogen activator (uPA) system including uPA, its receptor uPAR and the plasminogen activator inhibitor 1 (PAI-1) play an important role in tumour invasion and progression in a variety of tumour types.
12p
vialabama2711
21-09-2020
10
1
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Thrombin activatable fibrinolysis inhibitor (TAFI) is a plasma zymogen, which can be converted to activated TAFI (TAFIa) through proteolytic cleavage by thrombin, plasmin, and most effectively thrombin in complex with the endothelial cofactor thrombomodulin (TM).
12p
vinaypyidaw2711
26-08-2020
10
2
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The aim of this study was to evaluate the prognostic potential of urokinase-type plasminogen activator (uPA) and plasminogen activator inhibitor type 1 (PAI-1) tumor tissue levels and examine the association between these biomarkers and classical prognostic factors in early node-negative luminal breast cancer patients.
13p
viputrajaya2711
22-06-2020
6
0
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Stroke remains the leading cause of death and disability worldwide. This fact highlights the need to search for potential drug targets that can reduce stroke-related brain damage. We showed recently that a glycogen synthase kinase-3β (GSK-3β) inhibitor attenuates tissue plasminogen activator-induced hemorrhagic transformation after permanent focal cerebral ischemia.
7p
vilusaka2711
19-11-2019
16
0
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The serpins are of general protein chemical interest due to their ability to undergo a large conformational change consisting of the insertion of the reactive centre loop (RCL) as strand 4 of the central b sheet A. To make space for the incoming RCL, the ‘shutter region’ opens by the b strands 3A and 5A sliding apart over the underlying a helix B. Loop insertion occurs during the formation of complexes of serpins with their target serine proteinases and during latency transition. This type of loop insertion is unique to plasminogen activator inhibitor-1 (PAI-1).
10p
system191
01-06-2013
39
3
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The serpin plasminogen activator inhibitor type 1 (PAI-1) plays an important role in physiological processes such as thrombolysis and ®brinolysis, as well as pathophysiological processes such as thrombosis, tumor invasion and metas-tasis. In addition to inhibiting serine proteases, mainly tissue-type (tPA) and urokinase-type (uPA) plasminogen activators, PAI-1 interacts with dierent components of the extracellular matrix, i.e. ®brin, heparin (Hep) and vitronectin (Vn).
9p
research12
29-04-2013
23
2
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Matrix metalloproteinase (MMP)-3 inhibited human MDA-MB-231 breast cancer cell invasion through recon-stituted basement membranein vitro. Inhibition of invasion was dependent upon plasminogen and MMP-3 activation, was impaired by the peptide MMP-3 inhibitor Ac-Arg-Cys-Gly-Val-Pro-Asp-NH2 and was associated with: rapid MMP-3-mediated plasminogen degradation to microplas-minogen and angiostatin-like fragments;
8p
research12
23-04-2013
33
2
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Our laboratory showed that bikunin, aKunitz-type protease inhibitor, suppresses 4b-phorbol 12-myristate 13-acetate (PMA)- or tumor necrosis factor-alpha (TNFa)-induced urokinase-type plasminogen activator (uPA) expression in different cell types. In addition to its effects on protease inhibition, bikunincouldbemodulatingother cellular events associated with the metastatic cascade.
13p
research12
23-04-2013
40
1
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Functional cooperationbetween integrins andgrowth factor receptors has been reported for several systems, oneofwhich is the modulation of insulin signaling by avb3 integrin. Plasminogen activator inhibitor type-1 (PAI-1), competes withavb3 integrin for vitronectin (VN) binding. Here we report that PAI-1, in a VN-dependent manner, prevents the cooperation of avb3 integrin with insulin signaling in NIH3T3 fibroblasts, resulting in a decrease in insulin-induced protein kinase B (PKB) phosphorylation, vascular endothelial growth factor (VEGF) expression and cell migration. ...
8p
tumor12
20-04-2013
33
2
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Thrombomodulin (TM) slows down the interaction rate between thrombin and plasminogen activator inhibitor 1 (PAI-1). We now show that the 12-fold reduced inhibition rate in the presence ofTM does not result from an altered distribution between PAI-1 cleavage and irreversible com-plex formation. Surface plasmon resonance (SPR) revealed an over 200-fold reduced affinity of TM for thrombin-VR1 tPA as compared to thrombin, demonstrating the importance ofthe VR1 loop in the interaction ofthrombin withbothTMandPAI-1....
10p
fptmusic
16-04-2013
41
2
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The serpin plasminogen activator inhibitor-1 (PAI-1) is a fast and specific inhibitor of the plasminogen activating serine proteases tissue-type and urokinase-type plasminogen activator and, as such, an important regulator in turnover of extracellularmatrixand infibrinolysis. PAI-1 spontaneously loses its antiproteolyticactivityby inserting its reactive centre loop (RCL) as strand 4 in b-sheet A, thereby converting to the so-called latent state.
9p
fptmusic
16-04-2013
24
2
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Plasminogen activator inhibitor-1 (PAI-1) belongs to the serpin family of serine proteinase inhibitors. Serpins inhibit their target proteinases by an ester bond being formed between the active site serine of the proteinase and the P1 residue of the reactive centre loop (RCL) of the serpin, fol-lowed by insertion of the RCL intob-sheet A of the serpin. Concomitantly, there are conformational changes in the flexible joint region lateral tob-sheet A.
8p
fptmusic
16-04-2013
27
1
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Plasminogen activator inhibitor type-2 (PAI-2) is a nonconventional serine protease inhibitor (serpin) with unique and tantalizing properties that is generally considered to be an authentic and physiological inhibitor of uro-kinase. However, the fact that only a small percentage of PAI-2 is secreted has been a long-standing argument for alternative roles for this serpin.
10p
fptmusic
12-04-2013
36
1
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