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López Tórrez SM, Ayala CO, Ruggiro PB, Costa CAD, Wagner MB, Padoin AV, Mattiello R. Accuracy of prognostic serological biomarkers in predicting liver fibrosis severity in people with metabolic dysfunction-associated steatotic liver disease: a meta-analysis of over 40,000 participants. Front Nutr 2024; 11:1284509. [PMID: 38419854 PMCID: PMC10899345 DOI: 10.3389/fnut.2024.1284509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 01/25/2024] [Indexed: 03/02/2024] Open
Abstract
Introduction A prognostic model to predict liver severity in people with metabolic dysfunction-associated steatotic liver disease (MASLD) is very important, but the accuracy of the most commonly used tools is not yet well established. Objective The meta-analysis aimed to assess the accuracy of different prognostic serological biomarkers in predicting liver fibrosis severity in people with MASLD. Methods Adults ≥18 years of age with MASLD were included, with the following: liver biopsy and aspartate aminotransferase-to-platelet ratio (APRI), fibrosis index-4 (FIB-4), non-alcoholic fatty liver disease fibrosis score (NFS), body mass index, aspartate aminotransferase/alanine aminotransferase ratio, diabetes score (BARD score), FibroMeter, FibroTest, enhanced liver fibrosis (ELF), Forns score, and Hepascore. Meta-analyses were performed using a random effects model based on the DerSimonian and Laird methods. The study's risk of bias was assessed using the Quality Assessment of Diagnostic Accuracy Studies-2. Results In total, 138 articles were included, of which 86 studies with 46,514 participants met the criteria for the meta-analysis. The results for the summary area under the receiver operating characteristic (sAUROC) curve, according to the prognostic models, were as follows: APRI: advanced fibrosis (AF): 0.78, any fibrosis (AnF): 0.76, significant fibrosis (SF): 0.76, cirrhosis: 0.72; FIB-4: cirrhosis: 0.83, AF: 0.81, AnF: 0.77, SF: 0.75; NFS: SF: 0.81, AF: 0.81, AnF: 0.71, cirrhosis: 0.69; BARD score: SF: 0.77, AF: 0.73; FibroMeter: SF: 0.88, AF: 0.84; FibroTest: SF: 0.86, AF: 0.78; and ELF: AF: 0.87. Conclusion The results of this meta-analysis suggest that, when comparing the scores of serological biomarkers with liver biopsies, the following models showed better diagnostic accuracy in predicting liver fibrosis severity in people with MASLD: FIB-4 for any fibrosis, FibroMeter for significant fibrosis, ELF for advanced fibrosis, and FIB-4 for cirrhosis.Clinical trial registration: [https://clinicaltrials.gov/], identifier [CRD 42020180525].
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Affiliation(s)
- Sergio M. López Tórrez
- School of Medicine, Graduate Program in Medicine and Health Sciences, Pontifícia Universidade Católica de Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - Camila O. Ayala
- School of Medicine, Postgraduate Program in Pediatrics and Child Health, Pontifícia Universidade Católica de Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - Paula Bayer Ruggiro
- School of Medicine, Pontifícia Universidade Católica de Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - Caroline Abud Drumond Costa
- School of Medicine, Postgraduate Program in Pediatrics and Child Health, Pontifícia Universidade Católica de Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - Mario B. Wagner
- School of Medicine, Graduate Program in Medicine and Health Sciences, Pontifícia Universidade Católica de Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
- School Medicine, Universidade Federal de Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Alexandre Vontobel Padoin
- School of Medicine, Graduate Program in Medicine and Health Sciences, Pontifícia Universidade Católica de Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - Rita Mattiello
- School Medicine, Universidade Federal de Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
- School of Medicine, Postgraduate Program in Epidemiology, Universidade Federal de Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
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Jain V, Mehta A, Lee TB, Liu C, Chew NWS, Ko Y, Gold ME, Gold DA, Vatsa N, Desai SR, Kim JH, Rahbar A, Haroun Y, Ejaz K, Hayek SS, Siddiqui MS, Salloum FN, Sperling LS, Sanyal AJ, Quyyumi AA. Immune Activation Mediates the Association of Advanced Hepatic Fibrosis With Adverse Outcomes in Patients With Coronary Artery Disease. J Am Heart Assoc 2023; 12:e031230. [PMID: 38063161 PMCID: PMC10863787 DOI: 10.1161/jaha.123.031230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 10/31/2023] [Indexed: 12/20/2023]
Abstract
BACKGROUND Literature suggests a bidirectional association between advanced hepatic fibrosis (AHF) and coronary artery disease (CAD). We evaluated the association of AHF with immune activation, systemic inflammation, and adverse outcomes in patients with CAD. METHODS AND RESULTS A fibrosis-4 index cutoff value ≥2.67 was used to define AHF. Circulating levels of soluble urokinase plasminogen activator receptor and hsCRP (high-sensitivity C-reactive protein) were measured as markers for immune activation and systemic inflammation, respectively. The relationship of AHF with soluble urokinase plasminogen activator receptor, hsCRP, and adverse cardiovascular outcomes was evaluated. Among 3406 participants with CAD, 479 had AHF. Participants with AHF were older; were less likely to be Black individuals; and had a lower body mass index, worse renal function, and a prior history of heart failure. In multivariable linear regression models adjusted for clinical and demographic confounders, participants with AHF had 15.6% higher soluble urokinase plasminogen activator receptor and 24.0% higher hsCRP levels. They were more likely to experience the following adverse outcomes: all-cause death (adjusted hazard ratio [HR], 1.57 ([95% CI, 1.29-1.92]; P<0.001) and cardiovascular death: (subdistribution HR, 1.50 [95% CI, 1.14-1.95]; P=0.003). Mediation analysis showed that 47.0% (95% CI, 13.6%-81.2%]; P=0.006) of the indirect effect of AHF on cardiovascular death was mediated by circulating soluble urokinase plasminogen activator receptor levels. CONCLUSIONS AHF is independently associated with immune activation, systemic inflammation, and adverse cardiovascular outcomes in patients with CAD. The association of AHF with adverse outcomes is partly mediated by immune activation, and targeting this pathway may help reduce the residual risk in patients with CAD.
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Affiliation(s)
- Vardhmaan Jain
- Division of Cardiology, Department of MedicineEmory Clinical Cardiovascular Research Institute, Emory University School of MedicineAtlantaGAUSA
| | - Anurag Mehta
- Virginia Commonwealth University Health Pauley Heart CenterRichmondVAUSA
| | - Terence B. Lee
- Virginia Commonwealth University Health Pauley Heart CenterRichmondVAUSA
| | - Chang Liu
- Division of Cardiology, Department of MedicineEmory Clinical Cardiovascular Research Institute, Emory University School of MedicineAtlantaGAUSA
| | - Nicholas W. S. Chew
- Department of CardiologyNational University Heart Centre, National University Health SystemSingapore
| | - Yi‐An Ko
- Division of Cardiology, Department of MedicineEmory Clinical Cardiovascular Research Institute, Emory University School of MedicineAtlantaGAUSA
| | - Matthew E. Gold
- Division of Cardiology, Department of MedicineEmory Clinical Cardiovascular Research Institute, Emory University School of MedicineAtlantaGAUSA
| | - Daniel A. Gold
- Division of Cardiology, Department of MedicineEmory Clinical Cardiovascular Research Institute, Emory University School of MedicineAtlantaGAUSA
| | - Nishant Vatsa
- Division of Cardiology, Department of MedicineEmory Clinical Cardiovascular Research Institute, Emory University School of MedicineAtlantaGAUSA
| | - Shivang R. Desai
- Division of Cardiology, Department of MedicineEmory Clinical Cardiovascular Research Institute, Emory University School of MedicineAtlantaGAUSA
| | - Jonathan H. Kim
- Division of Cardiology, Department of MedicineEmory Clinical Cardiovascular Research Institute, Emory University School of MedicineAtlantaGAUSA
| | - Alireza Rahbar
- Division of Cardiology, Department of MedicineEmory Clinical Cardiovascular Research Institute, Emory University School of MedicineAtlantaGAUSA
| | - Yazan Haroun
- Division of Cardiology, Department of MedicineEmory Clinical Cardiovascular Research Institute, Emory University School of MedicineAtlantaGAUSA
| | - Kiran Ejaz
- Division of Cardiology, Department of MedicineEmory Clinical Cardiovascular Research Institute, Emory University School of MedicineAtlantaGAUSA
| | - Salim S. Hayek
- Department of Internal MedicineUniversity of Michigan Medical SchoolAnn ArborMIUSA
| | | | - Fadi N. Salloum
- Virginia Commonwealth University Health Pauley Heart CenterRichmondVAUSA
| | - Laurence S. Sperling
- Division of Cardiology, Department of MedicineEmory Clinical Cardiovascular Research Institute, Emory University School of MedicineAtlantaGAUSA
| | - Arun J. Sanyal
- Virginia Commonwealth University Stravitz‐Sanyal Liver InstituteRichmondVAUSA
| | - Arshed A. Quyyumi
- Division of Cardiology, Department of MedicineEmory Clinical Cardiovascular Research Institute, Emory University School of MedicineAtlantaGAUSA
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Erbak Yılmaz H, Aksun S, Günay S, Elmalı F, Çekiç C. Evaluation of plasma soluble urokinase plasminogen activator receptor (SuPAR) levels in ulcerative colitis. Arab J Gastroenterol 2023; 24:175-179. [PMID: 37045728 DOI: 10.1016/j.ajg.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 02/13/2023] [Accepted: 03/17/2023] [Indexed: 04/14/2023]
Abstract
BACKGROUND AND STUDY AIM Soluble urokinase plasminogen activator receptor (SuPAR), a soluble form of the urokinase-type plasminogen activator receptor, is a biomarker produced by macrophages, monocytes, neutrophils, active T cells, endothelial cells, and circulating tumor cells. SuPAR is a novel biomarker showing altered inflammation in many inflammatory diseases. This study aims to investigate the SuPAR level in ulcerative colitis (UC) patients, and to evaluate the SuPAR level in active, and remission patients. PATIENTS AND METHODS Patient and healthy control SuPAR levels were analyzed by immunoassay method. SuPAR levels between UC patients and control group were compared. The difference between SuPAR levels in patients with active UC and UC in remission was analyzed. The relationship between C-reactive protein level, Total Mayo score, Mayo Endoscopic score used to predict disease activity, and amount of SuPAR were evaluated. RESULTS SuPAR levels were determined in the UC patient group (2170,3 ± 121,0 pg/ml), and healthy controls (2130,7 ± 164,8 pg/ml) (p = 0. 805). Median SuPAR levels were determined in moderate UC (2479 pg/ml), mild UC (1944 pg/ml), and patients in remission (1774 pg/ml) (p = 0,207). There were no significant relationships between SuPAR levels and CRP levels, Total Mayo score, disease duration in the UC group (r = 0.177, r = 0.267, and r = 0,007; respectively p > 0.05). A slightly positive correlation was found between Mayo Endoscopic Score and SuPAR level (r = 0.303; p = 0.031). CONCLUSION SuPAR is of limited value in the diagnosis of ulcerative colitis and in the assessment of disease activation.
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Affiliation(s)
- Huriye Erbak Yılmaz
- Izmir Katip Çelebi University Atatürk Training and Research Hospital, Biochemistry Laboratory Izmir, Turkey; Izmir Biomedicine and Genom Center, Izmir, Turkey.
| | - Saliha Aksun
- Izmir Katip Çelebi University, Department of Biochemistry, Izmir, Turkey
| | - Süleyman Günay
- Izmir Katip Çelebi University, Department of Gastroenterology, Izmir, Turkey
| | - Ferhan Elmalı
- Izmir Katip Çelebi University, Department of Biostatistics, Izmir, Turkey
| | - Cem Çekiç
- Izmir Tinaztepe University, Department of Gastroenterology, Izmir, Turkey
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Özdirik B, Maibier M, Scherf M, Nicklaus JM, Frohme J, Puengel T, Meyer zum Büschenfelde D, Tacke F, Mueller T, Sigal M. Soluble Urokinase Plasminogen Activator Receptor Levels Are Associated with Severity of Fibrosis in Patients with Primary Sclerosing Cholangitis. J Clin Med 2022; 11:jcm11092479. [PMID: 35566603 PMCID: PMC9105770 DOI: 10.3390/jcm11092479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/23/2022] [Accepted: 04/26/2022] [Indexed: 12/07/2022] Open
Abstract
The soluble urokinase-type plasminogen activator receptor (suPAR) has evolved as a useful biomarker for different entities of chronic liver disease. However, its role in patients with primary sclerosing cholangitis (PSC) is obscure. We analyzed plasma levels of suPAR in 84 patients with PSC and compared them to 68 patients with inflammatory bowel disease (IBD) without PSC and to 40 healthy controls. Results are correlated with clinical records. suPAR concentrations were elevated in patients with PSC compared to patients with IBD only and to healthy controls (p < 0.001). Elevated suPAR levels were associated with the presence of liver cirrhosis (p < 0.001) and signs of portal hypertension (p < 0.001). suPAR revealed a high accuracy for the discrimination of the presence of liver cirrhosis comparable to previously validated noninvasive fibrosis markers (area under the curve (AUC) 0.802 (95%CI: 0.702−0.902)). Further, we demonstrated that suPAR levels may indicate the presence of acute cholangitis episodes (p < 0.001). Finally, despite the high proportion of PSC patients with IBD, presence of IBD and its disease activity did not influence circulating suPAR levels. suPAR represents a previously unrecognized biomarker for diagnosis and liver cirrhosis detection in patients with PSC. However, it does not appear to be confounded by intestinal inflammation in the context of IBD.
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Affiliation(s)
- Burcin Özdirik
- Department of Hepatology and Gastroenterology, Campus Virchow Klinikum (CVK) and Campus Charité Mitte (CCM), Charité Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany; (M.M.); (M.S.); (J.M.N.); (J.F.); (T.P.); (F.T.); (T.M.); (M.S.)
- Berlin Institute of Health, 10178 Berlin, Germany
- Correspondence: ; Tel.: +49-30-450-656-004; Fax: +49-30-450-553-902
| | - Martin Maibier
- Department of Hepatology and Gastroenterology, Campus Virchow Klinikum (CVK) and Campus Charité Mitte (CCM), Charité Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany; (M.M.); (M.S.); (J.M.N.); (J.F.); (T.P.); (F.T.); (T.M.); (M.S.)
| | - Maria Scherf
- Department of Hepatology and Gastroenterology, Campus Virchow Klinikum (CVK) and Campus Charité Mitte (CCM), Charité Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany; (M.M.); (M.S.); (J.M.N.); (J.F.); (T.P.); (F.T.); (T.M.); (M.S.)
| | - Jule Marie Nicklaus
- Department of Hepatology and Gastroenterology, Campus Virchow Klinikum (CVK) and Campus Charité Mitte (CCM), Charité Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany; (M.M.); (M.S.); (J.M.N.); (J.F.); (T.P.); (F.T.); (T.M.); (M.S.)
| | - Josephine Frohme
- Department of Hepatology and Gastroenterology, Campus Virchow Klinikum (CVK) and Campus Charité Mitte (CCM), Charité Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany; (M.M.); (M.S.); (J.M.N.); (J.F.); (T.P.); (F.T.); (T.M.); (M.S.)
| | - Tobias Puengel
- Department of Hepatology and Gastroenterology, Campus Virchow Klinikum (CVK) and Campus Charité Mitte (CCM), Charité Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany; (M.M.); (M.S.); (J.M.N.); (J.F.); (T.P.); (F.T.); (T.M.); (M.S.)
- Berlin Institute of Health, 10178 Berlin, Germany
| | - Dirk Meyer zum Büschenfelde
- Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, 13353 Berlin, Germany;
- Labor Berlin—Charité Vivantes GmbH, 13353 Berlin, Germany
| | - Frank Tacke
- Department of Hepatology and Gastroenterology, Campus Virchow Klinikum (CVK) and Campus Charité Mitte (CCM), Charité Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany; (M.M.); (M.S.); (J.M.N.); (J.F.); (T.P.); (F.T.); (T.M.); (M.S.)
| | - Tobias Mueller
- Department of Hepatology and Gastroenterology, Campus Virchow Klinikum (CVK) and Campus Charité Mitte (CCM), Charité Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany; (M.M.); (M.S.); (J.M.N.); (J.F.); (T.P.); (F.T.); (T.M.); (M.S.)
| | - Michael Sigal
- Department of Hepatology and Gastroenterology, Campus Virchow Klinikum (CVK) and Campus Charité Mitte (CCM), Charité Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany; (M.M.); (M.S.); (J.M.N.); (J.F.); (T.P.); (F.T.); (T.M.); (M.S.)
- Berlin Institute for Medical Systems Biology (BIMSB), Max Delbrück Center for Molecular Medicine, 10115 Berlin, Germany
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Rasmussen LJH, Petersen JEV, Eugen-Olsen J. Soluble Urokinase Plasminogen Activator Receptor (suPAR) as a Biomarker of Systemic Chronic Inflammation. Front Immunol 2021; 12:780641. [PMID: 34925360 PMCID: PMC8674945 DOI: 10.3389/fimmu.2021.780641] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 11/09/2021] [Indexed: 01/08/2023] Open
Abstract
Systemic chronic inflammation (SCI) is persistent, health-damaging, low-grade inflammation that plays a major role in immunosenescence and in development and progression of many diseases. But currently, there are no recognized standard biomarkers to assess SCI levels alone, and SCI is typically measured by combining biomarkers of acute inflammation and infection, e.g., CRP, IL-6, and TNFα. In this review, we highlight 10 properties and characteristics that are shared by the blood protein soluble urokinase plasminogen activator receptor (suPAR) and SCI, supporting the argument that suPAR is a biomarker of SCI: (1) Expression and release of suPAR is upregulated by immune activation; (2) uPAR and suPAR exert pro-inflammatory functions; (3) suPAR is associated with the amount of circulating immune cells; (4) Blood suPAR levels correlate with the levels of established inflammatory biomarkers; (5) suPAR is minimally affected by acute changes and short-term influences, in contrast to many currently used markers of systemic inflammation; (6) Like SCI, suPAR is non-specifically associated with multiple diseases; (7) suPAR and SCI both predict morbidity and mortality; (8) suPAR and SCI share the same risk factors; (9) suPAR is associated with risk factors and outcomes of inflammation above and beyond other inflammatory biomarkers; (10) The suPAR level can be reduced by anti-inflammatory interventions and treatment of disease. Assessing SCI has the potential to inform risk for morbidity and mortality. Blood suPAR is a newer biomarker which may, in fact, be a biomarker of SCI since it is stably associated with inflammation and immune activation; shares the same risk factors as many age-related diseases; is both elevated by and predicts age-related diseases. There is strong evidence that suPAR is a prognostic marker of adverse events, morbidity, and mortality. It is associated with immune activity and prognosis across diverse conditions, including kidney disease, cardiovascular disease, cancer, diabetes, and inflammatory disorders. Thus, we think it likely represents a common underlying disease-process shared by many diseases; that is, SCI. We review the supporting literature and propose a research agenda that can help test the hypothesis that suPAR indexes SCI, with the potential of becoming the new gold standard for measuring SCI.
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Affiliation(s)
- Line Jee Hartmann Rasmussen
- Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
- Department of Psychology and Neuroscience, Duke University, Durham, NC, United States
| | - Jens Emil Vang Petersen
- Division of Infectious Diseases, Duke University School of Medicine, Durham, NC, United States
| | - Jesper Eugen-Olsen
- Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
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Wang Y, Wu F, Chen C, Xu L, Lin W, Huang C, Yang Y, Wu S, Qi J, Cao H, Li G, Hong M, Zhu H. Soluble urokinase plasminogen activator receptor is associated with short-term mortality and enhanced reactive oxygen species production in acute-on-chronic liver failure. BMC Gastroenterol 2021; 21:429. [PMID: 34789156 PMCID: PMC8597314 DOI: 10.1186/s12876-021-02006-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 11/02/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Acute-on-chronic liver failure (ACLF) is a comprehensive syndrome characterized by an acute deterioration of liver function and high short-term mortality rates in patients with chronic liver disease. Whether plasma soluble urokinase plasminogen activator receptor (suPAR) is a suitable biomarker for the prognosis of patients with ACLF remains unknown. METHOD A prospective cohort of 282 patients with ACLF from three hospitals in China was included. 88.4% of the group was hepatitis B virus-related ACLF (HBV-related ACLF). Cox regression was used to assess the impact of plasma suPAR and other factors on 30- and 90-day mortality. Reactive oxygen species (ROS) production were detected to explore the role of suPAR in regulating neutrophil function in HBV-related ACLF. RESULT There was no difference in plasma suPAR levels between HBV-related and non-HBV-related ACLF. Patients with clinical complications had higher suPAR levels than those without these complications. A significant correlation was also found between suPAR and prognostic scores, infection indicators and inflammatory cytokines. Cox's regression multivariate analysis identified suPAR ≥ 14.7 ng/mL as a predictor for both day 30 and 90 mortality (Area under the ROC curve: 0.751 and 0.742 respectively), independent of the MELD and SOFA scores in patients with ACLF. Moreover, we firstly discovered suPAR enhanced neutrophil ROS production under E.coli stimulation in patients with HBV-related ACLF. CONCLUSIONS suPAR was a useful independent biomarker of short-term outcomes in patients with ACLF and might play a key role in the pathogenesis. Trial registration CNT, NCT02965560.
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Affiliation(s)
- Yunyun Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China.,Infectious Diseases Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Fengtian Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Chao Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Lichen Xu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Wei Lin
- The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chunhong Huang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Ying Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Shanshan Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Jinjin Qi
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Hanqin Cao
- Clinical Laboratory, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Guojun Li
- Hepatology Department, Ningbo Yinzhou No. 2 Hospital, Ningbo, Zhejiang, China
| | - Meng Hong
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Haihong Zhu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China.
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Enocsson H, Lukic T, Ziegelasch M, Kastbom A. Serum levels of the soluble urokinase plasminogen activator receptor (suPAR) correlates with disease activity in early rheumatoid arthritis and reflects joint damage over time. Transl Res 2021; 232:142-149. [PMID: 33582243 DOI: 10.1016/j.trsl.2021.02.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 01/11/2023]
Abstract
Soluble urokinase plasminogen activator receptor (suPAR) is intensively studied as a biomarker of inflammation and disease outcome in various diseases. In rheumatoid arthritis (RA), suPAR have shown an association with inflammation and swollen joints, but data on suPAR in relation to early disease course and disease progression are lacking. This study investigates the potential of suPAR to predict or reflect disease outcome in early RA. Serum suPAR was measured by enzyme-linked immunosorbent assay at disease onset and after 3 and 36 months in 252 patients from a Swedish prospective observational early RA cohort. Levels and changes of suPAR were analyzed in relation to the 28-joint disease activity score (DAS28) and joint damage according to the Larsen score at inclusion and during follow-up. 100 healthy blood donors served as controls. Circulating levels of suPAR were higher in RA patients at all time points as compared to healthy controls. Baseline suPAR was significantly associated with baseline disease activity whereas suPAR levels at 36 months were associated with joint damage at 36 months. No predictive value of suPAR levels or changes in suPAR levels over time were found. In conclusion, suPAR levels associate with disease activity in early untreated RA and reflects joint damage at later stages. Increased suPAR in established RA could indicate patients in need of frequent monitoring of joint status, irrespective of disease activity. In the view of suPAR as a rapidly emerging biomarker, it is important to be aware of its ability to reflect both inflammation and subsequent damage.
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Affiliation(s)
- Helena Enocsson
- Department of Rheumatology in Östergötland, and Department of Biomedical and Clinical Sciences, Division of Inflammation and Infection, Linköping University, Linköping, Sweden.
| | - Tanja Lukic
- Department of Biomedical and Clinical Sciences, Division of Inflammation and Infection, Linköping University, Linköping, Sweden
| | - Michael Ziegelasch
- Department of Rheumatology in Östergötland, and Department of Biomedical and Clinical Sciences, Division of Inflammation and Infection, Linköping University, Linköping, Sweden
| | - Alf Kastbom
- Department of Rheumatology in Östergötland, and Department of Biomedical and Clinical Sciences, Division of Inflammation and Infection, Linköping University, Linköping, Sweden
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Petersen JEV, Kallemose T, Barton KD, Caspi A, Rasmussen LJH. Soluble urokinase plasminogen activator receptor (suPAR) as a prognostic marker of mortality in healthy, general and patient populations: protocol for a systematic review and meta-analysis. BMJ Open 2020; 10:e036125. [PMID: 32690515 PMCID: PMC7371134 DOI: 10.1136/bmjopen-2019-036125] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 02/11/2020] [Accepted: 05/12/2020] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION Chronic inflammation is increasingly recognised as a major contributor to disease, disability and ultimately death, but measuring the levels of chronic inflammation remains non-canonised, making it difficult to relate chronic inflammation and mortality. Soluble urokinase plasminogen activator receptor (suPAR), an emerging biomarker of chronic inflammation, has been proposed as a prognostic biomarker associated with future incidence of chronic disease and mortality in general as well as patient populations. Proper prognostic biomarkers are important as they can help improve risk stratification in clinical settings and provide guidance in treatment or lifestyle decisions as well as in the design of randomised trials. Here, we wish to summarise the evidence about the overall association of the biomarker suPAR with mortality in healthy, general and patient populations across diseases. METHODS AND ANALYSIS The search will be conducted using Medline, Embase and Scopus databases from their inception to 03 June 2020 to identify studies investigating 'suPAR' and 'mortality'. Observational studies and control groups from intervention studies written in English or Danish will be included. The 'Quality In Prognosis Studies' tool will be used to assess the risk of bias for the studies included. Unadjusted and adjusted mortality outcome measures (eg, risk ratios, ORs, HRs) with 95% CIs will be extracted for healthy individuals, general and patient populations. The primary outcome is all-cause mortality within any given follow-up. Subgroup analyses will be performed based on time of outcome, cause of death, population type, adjustments for conventional risk factors and inflammation markers. ETHICS AND DISSEMINATION This systematic review will synthesise evidence on the use of suPAR as a prognostic marker for mortality. The results will be disseminated by publication in a peer-reviewed journal. Data used will be obtained from published studies, and ethics approval is therefore not necessary for this systematic review. TRIAL REGISTRATION NUMBER PROSPERO CRD42020167401.
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Affiliation(s)
- Jens Emil Vang Petersen
- Division of Infectious Diseases, Duke University School of Medicine, Durham, North Carolina, USA
| | - Thomas Kallemose
- Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Karen D Barton
- Duke University Medical Center Library & Archives, Duke University, Durham, North Carolina, USA
| | - Avshalom Caspi
- Department of Psychology and Neuroscience, Duke University, Durham, North Carolina, USA
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, North Carolina, USA
- Center for Genomic and Computational Biology, Duke University, Durham, North Carolina, USA
- Social, Genetic, and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, UK
| | - Line Jee Hartmann Rasmussen
- Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
- Department of Psychology and Neuroscience, Duke University, Durham, North Carolina, USA
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9
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The Plasma Soluble Urokinase Plasminogen Activator Receptor Is Related to Disease Activity of Patients with ANCA-Associated Vasculitis. Mediators Inflamm 2020; 2020:7850179. [PMID: 32322165 PMCID: PMC7166284 DOI: 10.1155/2020/7850179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 03/03/2020] [Accepted: 03/18/2020] [Indexed: 01/08/2023] Open
Abstract
Objective The soluble urokinase plasminogen activator receptor (suPAR) is associated with kidney diseases and is used as a prognostic factor of renal function progression. The aim of this study was to explore whether circulating suPAR was associated with antineutrophil cytoplasmic autoantibody- (ANCA-) associated vasculitis (AAV) disease activity. Methods We evaluated 90 AAV patients with follow-up data and 35 normal controls; their plasma suPAR and C-reactive protein (CRP) levels were measured by ELISA. Associations between these levels, clinical parameters, and prognosis were analyzed. Results Plasma suPAR levels in AAV patients were significantly higher than in healthy controls (5,920.08 ± 3,447.17 vs. 1,441.97 ± 835.04 pg/mL, P < 0.001). Furthermore, suPAR was significantly elevated in AAV patients in active stage compared to those in partial remissions (6,492.19 ± 3,689.48 vs. 5,031.86 ± 2,489.01 pg/mL, P = 0.039). Correlation analyses demonstrated that suPAR levels positively correlated with initial serum creatinine, BVAS, CRP, and procalcitonin concentration, and negatively correlated with eGFR and C3 circulating levels. In a Kaplan-Meier survival analysis, patients with plasma suPAR levels >5683.3 pg/mL showed poorer survival than patients with lower levels (log-rank, P = 0.001). Besides, multivariate analyses confirmed that plasma suPAR levels were an independent adverse prognostic factor for a composite outcome of end-stage renal disease (ESRD) or death, after adjusting for age and gender (HR 1.05, 95% CI = 1.01 − 1.11, P = 0.043). Receiver operating characteristic curves showed a suPAR cutoff value >6662.2 pg/mL for composite outcome with 68% sensitivity and 88% specificity, with an AUC = 0.82, (95% CI = 0.68 − 0.96, P < 0.001). Conclusion Circulating suPAR levels might be a marker of activity correlated with disease activity in AAV patients, and, to some extent, could be a factor of poor prognosis.
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10
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Skovsted TA, Petersen ERB, Fruekilde MB, Pedersen AK, Pielak T, Eugen-Olsen J. Validation of suPAR turbidimetric assay on Cobas® (c502 and c702) and comparison to suPAR ELISA. Scandinavian Journal of Clinical and Laboratory Investigation 2020; 80:327-335. [PMID: 32186407 DOI: 10.1080/00365513.2020.1741674] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
suPAR is a plasma marker of chronic inflammation, and an elevated suPAR is consistently associated with worse outcome in a variety of clinical conditions. Quantification of suPAR is useful for determining patient risk in triage, but there is no fast automatized method for quick determination of suPAR. We developed and validated a rapid latex particle-enhanced turbidimetric immunoassay for quantification of plasma suPAR on the c502 and the c702 Roche Cobas® 8000 measurment systems. The turbidimetric assay was validated against the suPARnostic® ELISA (ViroGates, Denmark). This validation demonstrates suPAR can be analysed by turbidimetry giving very similar results (<15% difference) compared to the ELISA method and the observed correlations (n = 103) were strong, r > 0.95. Roche Cobas® 8000 instruments demonstrated repeatability and repoducibility, CV % at 3.4-4.1 and 5.7-11.4, respectively. The estimated limit of detection was 1.30 µg/L and 1.31 µg/L for the Cobas® c502 and c702, respectively. Dilution tests showed linearity of suPAR from 1.8 to 26.5 μg/L. The acceptable concentrations of Bilirubin, Intralipid and Hemoglobin, were 350 µmol/L, 3.3 g/L and 1.4 g/L, respectively. suPAR can be quantified reproducibly within 10 min using a turbidimetry assay. This assay is faster than ELISA with similar results, making it suitable for clinical routine analysis.
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Affiliation(s)
- Thor A Skovsted
- Department of Biochemistry and Immunology, Hospital of Southern Jutland, Region of Southern Denmark, Aabenraa, Denmark
| | - Eva Rabing Brix Petersen
- Department of Biochemistry and Immunology, Hospital of Southern Jutland, Region of Southern Denmark, Aabenraa, Denmark
| | - Maj-Britt Fruekilde
- Department of Biochemistry and Immunology, Hospital of Southern Jutland, Region of Southern Denmark, Aabenraa, Denmark
| | | | - Tomasz Pielak
- ViroGates A/S, Birkerød, Denmark.,NUTOPI Sp. z o. o, Poznan, Poland
| | - Jesper Eugen-Olsen
- ViroGates A/S, Birkerød, Denmark.,Clinical Research Center, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
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11
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Li G, Lin J, Peng Y, Qin K, Wen L, Zhao T, Feng Q. Curcumol may reverse early and advanced liver fibrogenesis through downregulating the uPA/uPAR pathway. Phytother Res 2020; 34:1421-1435. [PMID: 31989700 DOI: 10.1002/ptr.6616] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 12/10/2019] [Accepted: 01/05/2020] [Indexed: 01/18/2023]
Abstract
Previous studies have suggested strong antifibrotic activity of curcumol in the liver; the underlying mechanisms of which, however, remain largely unknown. Aiming to investigate the role of curcumol in regulating early and advanced liver fibrosis, we designed a rat model with advanced liver fibrosis and cell model with an initial fibrotic stage. Model rats induced by CCl4 and alcohol presented advanced liver fibrosis with complete fibrous septa. The administration of curcumol (25 mg/kg or 50 mg/kg) resulted in reversal of liver fibrosis. Leptin-administrated liver sinusoidal endothelial cells presented defenestration and basement membrane components deposition, including laminin (LN) and type IV collagen (Col IV), the characteristics of capillarization by scanning electron microscopy and immunofluorescence assays. After treatment with curcumol (12.5, 25, or 50 mg/L), defenestration was restored and the levels of LN and Col IV were decreased, consistent with the rat model. Quantitative polymerase chain reaction and Western blot results revealed that increased levels of urokinase plasminogen activator (uPA)/ uPA receptor (uPAR) were observed both in vivo and in vitro, curcumol significantly reduced uPA/uPAR at both the mRNA and protein levels. Reduction of uPA/uPAR may be synergistic with matrix metallopeptidase 13 to reverse liver fibrogenesis. In conclusion, curcumol protects liver from phenotypic changes in the early and advanced fibrogenesis, possibly through uPA/uPAR pathway.
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Affiliation(s)
- Guiyu Li
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.,Department of Physiology, Faculty of Basic Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Jiyong Lin
- Traditional Chinese Medicine Department, Shenzhen Center for Chronic Disease Control, Shenzhen, Guangdong, China
| | - Yue Peng
- Department of Physiology, Faculty of Basic Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Kefeng Qin
- Department of Neurology, University of Chicago, Chicago, Illinois, USA
| | - Li Wen
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Tiejian Zhao
- Department of Physiology, Faculty of Basic Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Quansheng Feng
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
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12
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Wei C, Zhu K, Reiser J. Soluble Urokinase Receptor and Liver Disease. Clin Liver Dis (Hoboken) 2019; 14:163-166. [PMID: 31879556 PMCID: PMC6924968 DOI: 10.1002/cld.850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 06/07/2019] [Indexed: 02/04/2023] Open
Affiliation(s)
- Changli Wei
- Department of Internal MedicineRush University Medical CenterChicagoIL
| | - Ke Zhu
- Department of Internal MedicineRush University Medical CenterChicagoIL
| | - Jochen Reiser
- Department of Internal MedicineRush University Medical CenterChicagoIL
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13
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Soluble urokinase plasminogen activator receptor (suPAR) levels predict damage accrual in patients with recent-onset systemic lupus erythematosus. J Autoimmun 2019; 106:102340. [PMID: 31629628 DOI: 10.1016/j.jaut.2019.102340] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 09/27/2019] [Accepted: 10/01/2019] [Indexed: 01/09/2023]
Abstract
OBJECTIVE The soluble urokinase plasminogen activator receptor (suPAR) has potential as a prognosis and severity biomarker in several inflammatory and infectious diseases. In a previous cross-sectional study, suPAR levels were shown to reflect damage accrual in cases of systemic lupus erythematosus (SLE). Herein, we evaluated suPAR as a predictor of future organ damage in recent-onset SLE. METHODS Included were 344 patients from the Systemic Lupus International Collaborating Clinics (SLICC) Inception Cohort who met the 1997 American College of Rheumatology classification criteria with 5-years of follow-up data available. Baseline sera from patients and age- and sex-matched controls were assayed for suPAR. Organ damage was assessed annually using the SLICC/ACR damage index (SDI). RESULTS The levels of suPAR were higher in patients who accrued damage, particularly those with SDI≥2 at 5 years (N = 32, 46.8% increase, p = 0.004), as compared to patients without damage. Logistic regression analysis revealed a significant impact of suPAR on SDI outcome (SDI≥2; OR = 1.14; 95% CI 1.03-1.26), also after adjustment for confounding factors. In an optimized logistic regression to predict damage, suPAR persisted as a predictor, together with baseline disease activity (SLEDAI-2K), age, and non-Caucasian ethnicity (model AUC = 0.77). Dissecting SDI into organ systems revealed higher suPAR levels in patients who developed musculoskeletal damage (SDI≥1; p = 0.007). CONCLUSION Prognostic biomarkers identify patients who are at risk of acquiring early damage and therefore need careful observation and targeted treatment strategies. Overall, suPAR constitutes an interesting biomarker for patient stratification and for identifying SLE patients who are at risk of acquiring organ damage during the first 5 years of disease.
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14
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Garnæs E, Mortensen C, Hobolth L, Andersen O, Nehlin J, Møller S. Kinetics of the soluble urokinase plasminogen activator receptor (suPAR) in cirrhosis. PLoS One 2019; 14:e0220697. [PMID: 31465463 PMCID: PMC6715219 DOI: 10.1371/journal.pone.0220697] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 07/22/2019] [Indexed: 01/06/2023] Open
Abstract
Background The soluble urokinase plasminogen activator receptor (suPAR) is related to hepatic inflammation and fibrosis and has been suggested to participate in the development of liver cirrhosis. Therefore, the aim of the current study was to measure the concentration of suPAR in the hepatic vein of cirrhotic patients during a liver vein catheterization to identify a possible hepatic suPAR generation. Furthermore, we explored if suPAR levels were associated with the degree of cirrhosis and liver dysfunction. Methods and patients We included 105 cirrhotic patients and 19 liver-healthy controls. Blood was sampled from the hepatic vein and the femoral artery and suPAR was measured by enzyme-linked immunosorbent assay. Results We identified significantly higher median suPAR concentrations among the cirrhotic patients (7.2 ng/ml in the hepatic vein; 6.8 ng/ml in the femoral artery) compared to the controls (2.6 ng/ml, respectively, p-values <0.001). However, the median hepatic suPAR formation was 0.0 ng/ml in both groups. We observed significantly increasing suPAR levels according to higher Child classes (4.5 ng/ml, 6.9 ng/ml and 9.0 ng/ml, Child A, B, C respectively; p-value<0.001), and significantly higher median suPAR concentrations in patients with ascites versus patients without ascites (8.1 ng/ml versus 5.3 ng/ml, respectively, p-value<0.001). suPAR levels were significantly related to bilirubin (r = 0.48, p<0.001), the hepatic venous pressure gradient (r = 0.39, p<0.001), the cardiac index (r = 0.24, p = 0.02) and the plasma volume (r = 0.33, p = 0.001), whereas suPAR levels were significantly inversely related to albumin (r = -0.59, p<0.001), plasma coagulation factors (r-0.39, p<0.001), the mean arterial pressure (r = -0.28, p = 0.004), the systemic vascular resistance (r = 0.26, p = 0.007), the indocyanine green clearance (r = -0.51, p<0,001) and the galactose elimination capacity (r = -0.39, p<0.001). Conclusion We identified elevated suPAR concentration in cirrhotic patients, which correlated significantly with the degree of cirrhosis and liver failure, but we were not able to demonstrate hepatic suPAR generation per se. This suggests that further investigations of the source of suPAR in cirrhotic patients need to be undertaken.
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Affiliation(s)
- Emilie Garnæs
- Center of Functional and Diagnostic Imaging and Research, Department of Clinical and Nuclear Medicine, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Christian Mortensen
- Gastro Unit, Medical Division, Copenhagen University Hospital Hvidovre, Hvidovre Denmark
| | - Lise Hobolth
- Gastro Unit, Medical Division, Copenhagen University Hospital Hvidovre, Hvidovre Denmark
| | - Ove Andersen
- Clinical Research Center, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Jan Nehlin
- Clinical Research Center, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Søren Møller
- Center of Functional and Diagnostic Imaging and Research, Department of Clinical and Nuclear Medicine, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
- * E-mail:
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15
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Early Discharge from the Emergency Department Based on Soluble Urokinase Plasminogen Activator Receptor (suPAR) Levels: A TRIAGE III Substudy. DISEASE MARKERS 2019; 2019:3403549. [PMID: 31236143 PMCID: PMC6545801 DOI: 10.1155/2019/3403549] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 03/21/2019] [Accepted: 04/17/2019] [Indexed: 12/20/2022]
Abstract
Objective Using biomarkers for early and accurate identification of patients at low risk of serious illness may improve the flow in the emergency department (ED) by classifying these patients as nonurgent or even suitable for discharge. A potential biomarker for this purpose is soluble urokinase plasminogen activator receptor (suPAR). We hypothesized that availability of suPAR might lead to a higher proportion of early discharges. Design A substudy of the interventional TRIAGE III trial, comparing patients with a valid suPAR measurement at admission to those without. The primary endpoint was the proportion of patients discharged alive from the ED within 24 hours. Secondary outcomes were length of hospital stay, readmissions, and mortality within 30 days. Setting EDs at two university hospitals in the Capital Region of Denmark. Participants 16,801 acutely admitted patients were included. Measurements and Main Results The suPAR level was available in 7,905 patients (suPAR group), but not in 8,896 (control group). The proportion of patients who were discharged within 24 hours of admittance was significantly higher in the suPAR group compared to the control group (50.2% (3,966 patients) vs. 48.6% (4,317 patients), P = 0.04). Furthermore, the mean length of hospital stay in the suPAR group was significantly shorter compared to that in the control group (4.3 days (SD 7.4) vs. 4.6 days (SD 9.4), P = 0.04). In contrast, the readmission rate within 30 days was significantly higher in the suPAR group (10.6% (839 patients) vs. 8.8% (785 patients), P < 0.001). Among patients discharged within 24 hours, there was no significant difference in the readmission rate or mortality within 30 days. Readmission occurred in 8.5% (336 patients) vs. 7.7% (331 patients) (P = 0.18) and mortality in 1.3% (52 patients) vs. 1.8% (77 patients) (P = 0.08) for the suPAR group and control group, respectively. Conclusion These post hoc analyses demonstrate that the availability of the prognostic biomarker suPAR was associated with a higher proportion of discharge within 24 hours and reduced length of stay, but more readmissions. In patients discharged within 24 hours, there was no difference in readmission or mortality. Trial Registration of the Main Trial This trial is registered with NCT02643459.
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16
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Tajbakhsh A, Gheibi Hayat SM, Butler AE, Sahebkar A. Effect of soluble cleavage products of important receptors/ligands on efferocytosis: Their role in inflammatory, autoimmune and cardiovascular disease. Ageing Res Rev 2019; 50:43-57. [PMID: 30639340 DOI: 10.1016/j.arr.2019.01.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 01/04/2019] [Accepted: 01/08/2019] [Indexed: 12/17/2022]
Abstract
Efferocytosis, the clearance of apoptotic cells (ACs), is a physiologic, multifaceted and dynamic process and a fundamental mechanism for the preservation of tissue homeostasis by avoiding unwanted inflammation and autoimmune responses through special phagocytic receptors. Defective efferocytosis is associated with several disease states, including cardiovascular disease and impaired immune surveillance, as occurs in cancer and autoimmune disease. A major cause of defective efferocytosis is non-functionality of surface receptors on either the phagocytic cells or the ACs, such as TAM family tyrosine kinase, which turns to a soluble form by cleavage/shedding or alternative splicing. Recently, soluble forms have featured prominently as potential biomarkers, indicative of prognosis and enabling targeted therapy using several commonly employed drugs and inhibitors, such as bleomycin, dexamethasone, statins and some matrix metalloproteinase inhibitors such as TAPI-1 and BB3103. Importantly, to design drug carriers with enhanced circulatory durability, the adaptation of soluble forms of physiological receptors/ligands has been purported. Research has shown that soluble forms are more effective than antibody forms in enabling targeted treatment of certain conditions, such as autoimmune diseases. In this review, we sought to summarize the current knowledge of these soluble products, how they are generated, their interactions, roles, and their potential use as biomarkers in prognosis and treatment related to inflammatory, cardiovascular, and autoimmune diseases.
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Affiliation(s)
- Amir Tajbakhsh
- Department of Modern Sciences and Technologies, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Alexandra E Butler
- Diabetes Research Center, Qatar Biomedical Research Institute, Doha, Qatar
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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Hamie L, Daoud G, Nemer G, Nammour T, El Chediak A, Uthman IW, Kibbi AG, Eid A, Kurban M. SuPAR, an emerging biomarker in kidney and inflammatory diseases. Postgrad Med J 2018; 94:517-524. [PMID: 30177549 DOI: 10.1136/postgradmedj-2018-135839] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 07/10/2018] [Accepted: 07/28/2018] [Indexed: 12/12/2022]
Abstract
Soluble urokinase plasminogen activator receptor (suPAR) is a circulating form of a physiological and pathophysiological important cell surface receptor, implicated in inflammation. Recent studies showed that suPAR is a promising biomarker, useful for diagnosis, assessment and prognosis of several diseases. This review summarises the majority of preliminary studies and analyses the significance and the clinical application of suPAR in various clinical conditions. SuPAR seems to have a significant value in the diagnosis as well as prognosis of many diseases; nonetheless, it merits large-scale studies to set cut-off values that help physicians in following up their patients and accordingly tailor their treatment plans.
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Affiliation(s)
- Lamiaa Hamie
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Georges Daoud
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Georges Nemer
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Tarek Nammour
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Alissar El Chediak
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Imad W Uthman
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Abdul Ghani Kibbi
- Department of Dermatology, American University of Beirut Medical Center, Beirut, Lebanon
| | - Assaad Eid
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Mazen Kurban
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon .,Department of Dermatology, American University of Beirut Medical Center, Beirut, Lebanon
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Ichihara N, Miyamura M, Maeda D, Fujisaka T, Fujita SI, Morita H, Takeda Y, Ito T, Sohmiya K, Hoshiga M, Ishizaka N. Association between serum soluble urokinase-type plasminogen activator receptor and atrial fibrillation. J Arrhythm 2017; 33:469-474. [PMID: 29021852 PMCID: PMC5634684 DOI: 10.1016/j.joa.2017.05.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 04/21/2017] [Accepted: 05/16/2017] [Indexed: 12/19/2022] Open
Abstract
Background Circulating soluble urokinase-type plasminogen activator receptor (suPAR), which can reflect immune activation and low-grade inflammation, may be a novel biomarker of cardiovascular disease. Methods We investigated the potential association between suPAR and the prevalence of atrial fibrillation (AF) by analyzing patients with either sinus rhythm, paroxysmal atrial fibrillation (PAF), or non-paroxysmal atrial fibrillation (NPAF), which indicates either permanent or persistent AF. Results Among 426 patients enrolled (mean age 71.4±9.2 years; 110 (25.8%) female), 310, 62, and 54 were diagnosed with sinus rhythm, PAF, and NPAF, respectively. NPAF was >10-fold more prevalent in the highest suPAR quartile (>3534 pg/mL; 32 (30.2%) of 106 patients) than in the lowest suPAR quartile (<1802 pg/mL; 3 (2.8%) of 107 patients). Logistic regression analysis showed that, as compared with the lowest suPAR quartile, the highest suPAR quartile was associated with NPAF with an odds ratio of 6.48 (95% confidence interval, 1.71–24.5) after adjustment for sex, age, log(eGFR), C-reactive protein, and systolic blood pressure. In multivariate receiver operating characteristic analysis to predict NPAF, the area under the curve (AUC) for the combination of age, sex, log(eGFR), and C-reactive protein was 0.777 (standard error [SE], 0.036); the addition of log(suPAR) slightly improved the prediction (AUC, 0.812; SE, 0.034, P=0.084). Conclusions Serum suPAR was associated with AF, particularly NPAF, as demonstrated by multivariate logistic regression analysis. Whether suPAR promotes or maintains AF should be investigated in further studies.
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Affiliation(s)
- Noboru Ichihara
- Department of Cardiology, Osaka Medical College, Osaka, Japan
| | | | - Daichi Maeda
- Department of Cardiology, Osaka Medical College, Osaka, Japan
| | | | - Shu-Ichi Fujita
- Department of Cardiology, Osaka Medical College, Osaka, Japan
| | - Hideaki Morita
- Department of Cardiology, Osaka Medical College, Osaka, Japan
| | | | - Takahide Ito
- Department of Cardiology, Osaka Medical College, Osaka, Japan
| | - Koichi Sohmiya
- Department of Cardiology, Osaka Medical College, Osaka, Japan
| | - Masaaki Hoshiga
- Department of Cardiology, Osaka Medical College, Osaka, Japan
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Desmedt S, Desmedt V, Delanghe JR, Speeckaert R, Speeckaert MM. The intriguing role of soluble urokinase receptor in inflammatory diseases. Crit Rev Clin Lab Sci 2017; 54:117-133. [DOI: 10.1080/10408363.2016.1269310] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | | | - J. R. Delanghe
- Department of Clinical Chemistry, Ghent University Hospital, Gent, Belgium
| | - R. Speeckaert
- Department of Clinical Chemistry, Ghent University Hospital, Gent, Belgium
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20
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Udomsinprasert W, Honsawek S, Jirathanathornnukul N, Chongsrisawat V, Poovorawan Y. Elevation of serum urokinase plasminogen activator receptor and liver stiffness in postoperative biliary atresia. World J Hepatol 2016; 8:1471-1477. [PMID: 27957246 PMCID: PMC5124719 DOI: 10.4254/wjh.v8.i33.1471] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Revised: 08/21/2016] [Accepted: 10/24/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate serum urokinase-type plasminogen activator receptor (uPAR) and liver stiffness in biliary atresia (BA) and examine the correlation of circulating uPAR, liver stiffness, and clinical outcomes in postoperative BA children.
METHODS Eighty-five postKasai BA children and 24 control subjects were registered. Circulating uPAR was measured using enzyme-linked immunosorbent essay. Liver stiffness was analyzed using transient elastography.
RESULTS BA children had significantly greater circulating uPAR and liver stiffness scores than control subjects (P < 0.001). Circulating uPAR and liver stiffness were substantially higher in jaundiced BA children than non-jaundiced BA children (P < 0.001). In addition, circulating uPAR was positively associated with serum aspartate aminotransferase (r = 0.507, P < 0.001), alanine aminotransferase (r = 0.364, P < 0.001), total bilirubin (r = 0.559, P < 0.001), alkaline phosphatase (r = 0.325, P < 0.001), and liver stiffness scores (r = 0.508, P < 0.001).
CONCLUSION Circulating uPAR and liver stiffness values were greater in BA children than healthy controls. The increased circulating uPAR was associated with liver dysfunction in BA. As a consequence, serum uPAR and liver stiffness may be used as noninvasive biomarkers indicating the progression of liver fibrosis in postKasai BA.
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Lipinski M, Rydzewska-Rosolowska A, Rydzewski A, Cicha M, Rydzewska G. Soluble urokinase-type plasminogen activator receptor (suPAR) in patients with acute pancreatitis (AP) - Progress in prediction of AP severity. Pancreatology 2016; 17:24-29. [PMID: 27914940 DOI: 10.1016/j.pan.2016.11.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 11/21/2016] [Accepted: 11/24/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND Soluble urokinase-type plasminogen activator receptor (suPAR) is a glycoprotein secreted during inflammation and infections. Moreover, increased levels of suPAR are observed after hypoxia and ischaemia. The aim of the study was to assess whether suPAR could represent a useful marker of acute pancreatitis (AP) severity. PATIENTS AND METHODS We have observed a cohort of 126 prospectively enrolled patients. Based on the presence of persistent organ failure (more than 48 h) and local complications (diagnosis of moderate AP [MSAP]), patients were classified into three groups: mild AP (MAP), moderate and severe AP (SAP). The blood samples were taken on admission for detecting suPAR concentrations. RESULTS AP was considered severe in 33 patients (26.2%), MSAP was found in 37 patients (29.4%), and MAP was found in 56 patients (44,4%). The AUC for SAP predicted by suPAR was 0.993. The calculated cut-off point for prognosis SAP is 4.75 ng/mL. The BISAP score of ≥3 for detection of SAP had sensitivity and specificity of 94.6% and 63.6%, respectively. The AUC for severity predicted by BISAP amounted to 0.916. Additionally, suPAR turned out to be a good predictor of fatal AP: for the cut-off point 7.05 ng/mL, the AUC was 0.917. The AUC for death prediction in AP patients based on the BISAP score ≥3 was 0.894. CONCLUSIONS suPAR concentration is a promising new diagnostic and prognostic indicator in SAP obtainable in the early stage of disease. Larger studies are recommended to evaluate this role further.
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Affiliation(s)
- Michal Lipinski
- Department of Gastroenterology, Central Clinical Hospital of The Ministry of Interior and Administration, Warsaw, Poland.
| | | | - Andrzej Rydzewski
- Department of Internal Medicine and Nephrology, Central Clinical Hospital of The Ministry of Interior and Administration, Warsaw, Poland; The Faculty of Medicine and Health Sciences, UJK, Kielce, Poland
| | - Malgorzata Cicha
- Diagnostic Laboratory, Central Clinical Hospital of the Ministry of Interior and Administration, Warsaw, Poland
| | - Grazyna Rydzewska
- Department of Gastroenterology, Central Clinical Hospital of The Ministry of Interior and Administration, Warsaw, Poland; The Faculty of Medicine and Health Sciences, UJK, Kielce, Poland
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Zhu L, Chen X, Kong X, Cai YD. Investigation of the roles of trace elements during hepatitis C virus infection using protein-protein interactions and a shortest path algorithm. Biochim Biophys Acta Gen Subj 2016; 1860:2756-68. [PMID: 27208424 DOI: 10.1016/j.bbagen.2016.05.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 05/05/2016] [Accepted: 05/13/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND Hepatitis is a type of infectious disease that induces inflammation of the liver without pinpointing a particular pathogen or pathogenesis. Type C hepatitis, as a type of hepatitis, has been reported to induce cirrhosis and hepatocellular carcinoma within a very short amount of time. It is a great threat to human health. Some studies have revealed that trace elements are associated with infection with and immune rejection against hepatitis C virus (HCV). However, the mechanism underlying this phenomenon is still unclear. METHODS In this study, we aimed to expand our knowledge of this phenomenon by designing a computational method to identify genes that may be related to both HCV and trace element metabolic processes. The searching procedure included three stages. First, a shortest path algorithm was applied to a large network, constructed by protein-protein interactions, to identify potential genes of interest. Second, a permutation test was executed to exclude false discoveries. Finally, some rules based on the betweenness and associations between candidate genes and HCV and trace elements were built to select core genes among the remaining genes. RESULTS 12 lists of genes, corresponding to 12 types of trace elements, were obtained. These genes are deemed to be associated with HCV infection and trace elements metabolism. CONCLUSIONS The analyses indicate that some genes may be related to both HCV and trace element metabolic processes, further confirming the associations between HCV and trace elements. The method was further tested on another set of HCV genes, the results indicate that this method is quite robustness. GENERAL SIGNIFICANCE The newly found genes may partially reveal unknown mechanisms between HCV infection and trace element metabolism. This article is part of a Special Issue entitled "System Genetics" Guest Editor: Dr. Yudong Cai and Dr. Tao Huang.
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Affiliation(s)
- LiuCun Zhu
- School of Life Sciences, Shanghai University, Shanghai 200444, People's Republic of China
| | - XiJia Chen
- School of Life Sciences, Shanghai University, Shanghai 200444, People's Republic of China
| | - Xiangyin Kong
- The Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200025, People's Republic of China
| | - Yu-Dong Cai
- School of Life Sciences, Shanghai University, Shanghai 200444, People's Republic of China.
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Sevgi DY, Bayraktar B, Gündüz A, Özgüven BY, Togay A, Bulut E, Uzun N, Dökmetaş İ. Serum soluble urokinase-type plasminogen activator receptor and interferon-γ-induced protein 10 levels correlate with significant fibrosis in chronic hepatitis B. Wien Klin Wochenschr 2015; 128:28-33. [PMID: 26546355 DOI: 10.1007/s00508-015-0886-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 10/12/2015] [Indexed: 12/16/2022]
Abstract
BACKGROUND Hepatitis B virus (HBV) presents an important public health problem. Liver biopsy is currently the gold standard for assessing the degree of intrahepatic inflammation and for staging liver fibrosis. However, the value of liver biopsies is limited by sampling errors, understaging and interobserver variability in interpretation. There is, therefore, a need to identify novel, non-invasive serologic biomarkers for the development of new predictive models of fibrosis. METHODS We enrolled patients with chronic hepatitis B infection (CHB) and examined the relationships between serum soluble urokinase plasminogen activator receptor (suPAR) and interferon-induced protein-10 (IP-10), and the results of liver biopsies. Healthy volunteers with normal aminotransferase levels and negative serological results for HBV, hepatitis C virus and human immunodeficiency virus were recruited as controls. RESULTS Mean platelet volume, serum suPAR and IP-10 were significantly elevated in patients with CHB compared with controls. Median serum suPAR and IP-10 levels were significantly higher in patients with liver fibrosis compared with patients with mild fibrosis. There was no significant difference in mean platelet volume or aspartate aminotransferase-to-platelet ratio index scores between patients with mild and significant fibrosis. CONCLUSION suPAR and IP-10 were able to distinguish between significant and mild fibrosis with good sensitivity and specificity, and may thus represent useful biomarkers for identifying patients with significant fibrosis.
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Affiliation(s)
- Dilek Yıldız Sevgi
- Department of Infectious Diseases and Clinical Microbiology, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey.
| | - Banu Bayraktar
- Department of Clinical Microbiology, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Alper Gündüz
- Department of Infectious Diseases and Clinical Microbiology, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Banu Yılmaz Özgüven
- Department of Pathology, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Alper Togay
- Department of Clinical Microbiology, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Emin Bulut
- Department of Clinical Microbiology, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Nuray Uzun
- Department of Infectious Diseases and Clinical Microbiology, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - İlyas Dökmetaş
- Department of Infectious Diseases and Clinical Microbiology, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
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Enocsson H, Sjöwall C, Wetterö J. Soluble urokinase plasminogen activator receptor--a valuable biomarker in systemic lupus erythematosus? Clin Chim Acta 2015; 444:234-41. [PMID: 25704300 DOI: 10.1016/j.cca.2015.02.031] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 02/13/2015] [Accepted: 02/14/2015] [Indexed: 12/29/2022]
Abstract
Systemic lupus erythematosus (SLE) is a potentially severe autoimmune condition with an unpredictable disease course, often with fluctuations in disease activity over time. Long term inflammation and drug-related side-effects may subsequently lead to permanent organ damage, a consequence which is intimately connected to decreased quality of life and mortality. New lupus biomarkers that convey information regarding inflammation and/or organ damage are thus warranted. Today, there is no clinical biomarker that indicates the risk of damage accrual. Herein we highlight the urokinase plasminogen activator receptor (uPAR) and especially its soluble form (suPAR) that besides having biological functions in e.g. proteolysis, cell migration and tissue homeostasis, recently has emerged as a promising biomarker of inflammation and prognosis of several disorders. A strong association between suPAR and organ damage in SLE was recently demonstrated, and preliminary data (presented in this review) suggests the possibility of a predictive value of suPAR blood levels. The involvement of suPAR in the pathogenesis of SLE remains obscure, but its effects in leukocyte recruitment, phagocytic uptake of dying cells (efferocytosis) and complement regulation suggests that the central parts of the SLE pathogenesis could be regulated by suPAR, and vice versa.
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Affiliation(s)
- Helena Enocsson
- Rheumatology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.
| | - Christopher Sjöwall
- Rheumatology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.
| | - Jonas Wetterö
- Rheumatology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.
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