scholarly journals Soluble urokinase-type plasminogen activator receptor as a measure of treatment response in acute exacerbation of COPD

2018 ◽  
Vol 44 (1) ◽  
pp. 36-41 ◽  
Author(s):  
Gehan Hassan AboEl-Magd ◽  
Maaly Mohamed Mabrouk
Keyword(s):  
Treatment Response ◽  
Plasminogen Activator ◽  
Acute Exacerbation ◽  
Serum Levels ◽  
Acute Exacerbation Of Copd ◽  
Supar Level ◽  
Type Plasminogen Activator ◽  
Urokinase Type Plasminogen Activator ◽  
Plasminogen Activator Receptor ◽  
Exacerbation Of Copd

ABSTRACT Objective: To evaluate the value of soluble urokinase-type plasminogen activator receptor (suPAR) in the diagnosis of acute exacerbation of COPD (AECOPD) and in monitoring treatment response, analyzing the relationship between suPAR and fibrinogen in AECOPD. AECOPD leads to increased airway inflammation, contributing to an exaggerated release of inflammatory mediators. Methods: We recruited 45 patients with AECOPD and 20 healthy control subjects. Medical histories were taken, and all subjects underwent clinical examination, chest X-ray, pulmonary function tests, and blood gas analysis. On day 1 (treatment initiation for the AECOPD patients) and day 14 (end of treatment), blood samples were collected for the determination of serum suPAR and plasma fibrinogen. Results: Serum levels of suPAR were significantly higher in the AECOPD group than in the control group. In the AECOPD patients, there was a significant post-treatment decrease in the mean serum suPAR level. The sensitivity, specificity, and accuracy of suPAR were 95.6%, 80.0%, and 93.0%, respectively. The Global Initiative for Chronic Obstructive Lung Disease stage (i.e., COPD severity) correlated positively and significantly with serum levels of suPAR and plasma levels of fibrinogen. Conclusions: Monitoring the serum suPAR level can be helpful in the evaluation of the COPD treatment response and might be a valuable biomarker for determining the prognosis of AECOPD. Because serum suPAR correlated with plasma fibrinogen, both markers could be predictive of AECOPD.

Serum soluble urokinase-type plasminogen activator receptor levels in male patients with acute exacerbation of schizophrenia

2016 ◽  
Vol 236 ◽  
pp. 179-181 ◽  
Author(s):  
Abdullah Genc ◽  
Tevfik Kalelioglu ◽  
Nesrin Karamustafalioglu ◽  
Akif Tasdemir ◽  
Esra Sena Genc ◽  
...  
Keyword(s):  
Plasminogen Activator ◽  
Acute Exacerbation ◽  
Type Plasminogen Activator ◽  
Urokinase Type Plasminogen Activator ◽  
Male Patients ◽  
Plasminogen Activator Receptor

Serum level of soluble urokinase-type plasminogen activator receptor is a strong and independent predictor of survival in human immunodeficiency virus infection

Blood ◽  
2000 ◽  
Vol 96 (13) ◽  
pp. 4091-4095 ◽  
Author(s):  
Nicolai Sidenius ◽  
Cornelis F. M. Sier ◽  
Henrik Ullum ◽  
Bente Klarlund Pedersen ◽  
Alessandro Cozzi Lepri ◽  
...  
Keyword(s):  
Human Immunodeficiency Virus ◽  
Plasminogen Activator ◽  
Independent Predictor ◽  
Supar Level ◽  
Kaplan Meier ◽  
Type Plasminogen Activator ◽  
Urokinase Type Plasminogen Activator ◽  
Immunodeficiency Virus ◽  
Plasminogen Activator Receptor ◽  
Hiv 1

Abstract Human immunodeficiency virus-1 (HIV-1) infection has been shown to result in up-regulation of the urokinase-type plasminogen activator receptor (uPAR/CD87) on leukocytes in vitro and in vivo. The objective of this study was to investigate whether this up-regulation is paralleled by higher serum levels of soluble uPAR (suPAR) in patients with advanced HIV-1 disease and whether the serum level of suPAR is predictive of clinical outcome. Using an enzyme-linked immunosorbent assay, the level of suPAR was measured retrospectively in serum samples from 314 patients with HIV-1 infection. By Kaplan-Meier and Cox regression analyses, the serum suPAR levels were correlated to survival with AIDS-related death as the end point. High levels of serum suPAR (greater than median) were associated with poor overall survival, and Kaplan-Meier analysis on patients stratified by suPAR level demonstrated a continuous increase in mortality rates with higher suPAR levels. After adjustment for accepted prognostic markers—including Centers for Disease Control and Prevention–defined clinical stages, CD4 counts, viral load, β2-microglobulin, and age—the prognostic strength of suPAR remained highly significant, indicating that the serum suPAR level is a novel, strong, and independent predictor of survival in HIV-1 infection. This report is the first to demonstrate an important association between the plasminogen activator system and disease progression in HIV-1 infection.

scholarly journals The Soluble Urokinase-Type Plasminogen Activator Receptor as a Biomarker for Survival and Early Treatment Effect in Metastatic Colorectal Cancer

Cancers ◽  
2021 ◽  
Vol 13 (20) ◽  
pp. 5100
Author(s):  
Kristian Blomberg ◽  
Torben F. Hansen ◽  
Claus L. Brasen ◽  
Jeppe B. Madsen ◽  
Lars H. Jensen ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Plasminogen Activator ◽  
Treatment Cycle ◽  
Performance Status ◽  
Progression Free Survival ◽  
Supar Level ◽  
Type Plasminogen Activator ◽  
Urokinase Type Plasminogen Activator ◽  
Plasminogen Activator Receptor ◽  
And Performance

The soluble urokinase-type plasminogen activator receptor (suPAR) is prognostic for overall survival (OS) in colorectal cancer (CRC). Our study explored the association between baseline suPAR and OS and progression-free survival (PFS) in metastatic CRC (mCRC). It is also the first study to explore the association between the initial change in suPAR level and OS, PFS and the first CT response evaluation. The study included 132 patients with mCRC treated with chemotherapy (FOLFIRI) with or without an EGFR-inhibitor. Blood samples were drawn before the first treatment cycle and in between the first and second treatment cycle. suPAR levels were determined using an ELISA assay. Using the Kaplan-Meyer method, we demonstrated a significantly shorter OS for patients with suPAR levels above the median (HR = 1.79, 95%CI = 1.10–2.92, p = 0.01). We also showed association between plasma suPAR level, gender and performance status (PS). However, we could not show any association with PFS, and analysis on the change in suPAR level provided no significant results. The results showing association between baseline suPAR and OS are in line with previous findings.

scholarly journals Does Soluble Urokinase-Type Plasminogen Activator Receptor Level Predicts the Occurrence of Inflammatory Complications in Maxillofacial Surgery?

2021 ◽  
Vol 11 (5) ◽  
pp. 2192
Author(s):  
Marcin Kozakiewicz ◽  
Rafał Nikodem Wlazeł
Keyword(s):  
Plasminogen Activator ◽  
Maxillofacial Surgery ◽  
Patient Characteristics ◽  
Reactive Protein ◽  
Supar Level ◽  
Type Plasminogen Activator ◽  
Urokinase Type Plasminogen Activator ◽  
Increased Risk ◽  
Plasminogen Activator Receptor ◽  
Minor Injuries

Soluble urokinase-type plasminogen activator receptor (suPAR) is a marker of immune activation and reflects a more distinct aspect of inflammation than C-reactive protein (CRP) does. The study concerns a clinically silent state of the immune system expressed by the level of suPAR, which could affect the occurrence of complications (non-life threatening) after scheduled procedures. The purpose was the evaluation of suPAR predictive value in minor maxillofacial surgery complication incidents. Eighty patients were tested for suPAR, CRP and a series of basic laboratory serum tests on 1 day before surgery. Complications of orthognathic and minor injuries treatments were reported. The suPAR level, expressed as a measure independent of the patient’s age (Index of Body Inflammation, IBI), was analyzed. The protein level was also assessed on postoperative day 3. Basic statistical analysis did not reveal any relevant dependence between suPAR (or IBI) and occurrence of minor complications. The application of factor analysis, artificial neural network and inclusion of chlorides, glycaemia, alanine transaminase (ALT), albumin and hemoglobin levels allowed to indicate the suPAR/IBI ranges associated with an increased risk of minor postoperative complications. Concluding, it seems that, in the current state of the knowledge, the monitoring of pre-operational suPAR level solely does not include sufficient predictive information for the occurrence of minor complications after maxillofacial surgery. The suPAR/IBI level should be combined with other patient characteristics to predict healing complications.

Involvement of the urokinase-type plasminogen activator receptor in hematopoietic stem cell mobilization

Blood ◽  
2005 ◽  
Vol 105 (5) ◽  
pp. 2198-2205 ◽  
Author(s):  
Carmine Selleri ◽  
Nunzia Montuori ◽  
Patrizia Ricci ◽  
Valeria Visconte ◽  
Maria Vincenza Carriero ◽  
...  
Keyword(s):  
Plasminogen Activator ◽  
Mononuclear Cells ◽  
Serum Levels ◽  
Peripheral Blood Mononuclear ◽  
Hematopoietic Stem ◽  
Type Plasminogen Activator ◽  
Urokinase Type Plasminogen Activator ◽  
Plasminogen Activator Receptor ◽  
Cell Mobilization

AbstractWe investigated the involvement of the urokinase-type plasminogen-activator receptor (uPAR) in granulocyte–colony-stimulating factor (G-CSF)–induced mobilization of CD34+ hematopoietic stem cells (HSCs) from 16 healthy donors. Analysis of peripheral blood mononuclear cells (PBMNCs) showed an increased uPAR expression after G-CSF treatment in CD33+ myeloid and CD14+ monocytic cells, whereas mobilized CD34+ HSCs remained uPAR negative. G-CSF treatment also induced an increase in serum levels of soluble uPAR (suPAR). Cleaved forms of suPAR (c-suPAR) were released in vitro by PBMNCs and were also detected in the serum of G-CSF–treated donors. c-suPAR was able to chemoattract CD34+ KG1 leukemia cells and CD34+ HSCs, as documented by their in vitro migratory response to a chemotactic suPAR-derived peptide (uPAR84-95). uPAR84-95 induced CD34+ KG1 and CD34+ HSC migration by activating the high-affinity fMet-Leu-Phe (fMLP) receptor (FPR). In addition, uPAR84-95 inhibited CD34+ KG1 and CD34+ HSC in vitro migration toward the stromal-derived factor 1 (SDF1), thus suggesting the heterologous desensitization of its receptor, CXCR4. Finally, uPAR84-95 treatment significantly increased the output of clonogenic progenitors from long-term cultures of CD34+ HSCs. Our findings demonstrate that G-CSF–induced upregulation of uPAR on circulating CD33+ and CD14+ cells is associated with increased uPAR shedding, which leads to the appearance of serum c-suPAR. c-suPAR could contribute to the mobilization of HSCs by promoting their FPR-mediated migration and by inducing CXCR4 desensitization.

scholarly journals Soluble urokinase-type plasminogen activator receptor strongly predicts global mortality in acute heart failure patients: insight from the STADE-HF registry

2021 ◽  
pp. FSO697
Author(s):  
Fabien Huet ◽  
Anne-Marie Dupuy ◽  
Claire Duflos ◽  
Cintia Azara Reis ◽  
Nils Kuster ◽  
...  
Keyword(s):  
Heart Failure ◽  
Plasminogen Activator ◽  
Acute Heart Failure ◽  
Prognostic Indicator ◽  
Supar Level ◽  
Risk Of Mortality ◽  
Type Plasminogen Activator ◽  
Urokinase Type Plasminogen Activator ◽  
Significant Difference ◽  
Plasminogen Activator Receptor

Background: Whether soluble urokinase-type plasminogen activator receptor (suPAR) could be a valuable prognostic indicator remains uncertain. Materials & methods: Patients from STADE-HF (Soluble Suppression of Tumorigenesis-2 as a Help for Management of Diagnosis, Evaluation and Management of Heart Failure) were included for analysis. Results: 95 patients were included. The suPAR level of expression was significantly higher in the group of patients who died at one month (7.90 ± 4.35 ng/ml vs 11.94 ± 6.86 ng/ml; p < 0.05) or 1 year (7.28 ± 4.27 ng/ml vs 11.81 ± 4.88 ng/ml; p < 0.01), but there was no significant difference according to the readmission. Conclusion: High suPAR levels during hospitalization for acute heart failure were highly predictive for the risk of mortality, but not the risk of readmission.

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