1
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Gong K, Xu J, Tang J. Diagnostic and Prognostic Value of Deregulated Circulating Long Non-coding RNA TUG1 in Elderly Patients with Severe Pneumonia. Inflammation 2023; 46:313-321. [PMID: 36104517 DOI: 10.1007/s10753-022-01735-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/15/2022] [Accepted: 08/26/2022] [Indexed: 11/05/2022]
Abstract
To investigate the expression pattern of long non-coding RNA TUG1 in elderly patients with severe community-acquired pneumonia (sCAP) and evaluate its diagnostic and prognostic value for sCAP. Serum TUG1 levels were detected in 130 sCAP patients and 122 healthy volunteers via qRT-PCR method. The receiver operating characteristic (ROC) curve and k-M plot were drawn for the diagnostic and prognostic value evaluation. A diminished trend of TUG1 was detected in the serum of sCAP cases, and negatively correlated with the concentration of TNF-α, CRP, suPAR and sTREM-1. Among the 130 cases, 30 cases died from sCAP within 30 days after admission. Serum TUG1 had the diagnostic value for 30-day mortality prediction with the AUC of 0.823. In the non-survival group, more cases had old age, high CURB score and PSI score. K-M plot demonstrated that cases with low TUG1 levels showed poor survival than those carrying high TUG1 levels. Serum TUG1 was an independent risk factor for death in elderly patients with sCAP within 30 days after admission. Serum TUG1 was at low expression in sCAP patients, and it had the predictive value for the clinical prognosis of elderly sCAP patients.
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Affiliation(s)
- Kai Gong
- Department of Respiratory Medicine, Wu-Jin Hospital Affiliated to Jiangsu University, Wu-Jin Clinical College of Xuzhou Medical University, No. 2 Yongning North Road, Chang Zhou, Jiangsu, 213017, China
| | - Jiao Xu
- Department of Respiratory Medicine, Wu-Jin Hospital Affiliated to Jiangsu University, Wu-Jin Clinical College of Xuzhou Medical University, No. 2 Yongning North Road, Chang Zhou, Jiangsu, 213017, China
| | - Jianlei Tang
- Department of Intensive Care Unit, Wu-Jin Hospital Affiliated to Jiangsu University, Wu-Jin Clinical College of Xuzhou Medical University, No. 2 Yongning North Road, Chang Zhou, Jiangsu, 213017, China.
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2
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Dhummakupt E, Jenkins C, Rizzo G, Melka A, Carmany D, Prugh A, Horsmon J, Renner J, Angelini D. Proteomic, Metabolomic, and Lipidomic Analyses of Lung Tissue Exposed to Mustard Gas. Metabolites 2022; 12:metabo12090815. [PMID: 36144218 PMCID: PMC9501011 DOI: 10.3390/metabo12090815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/23/2022] [Accepted: 08/25/2022] [Indexed: 11/21/2022] Open
Abstract
Sulfur mustard (HD) poses a serious threat due to its relatively simple production process. Exposure to HD in the short-term causes an inflammatory response, while long-term exposure results in DNA and RNA damage. Respiratory tract tissue models were exposed to relatively low concentrations of HD and collected at 3 and 24 h post exposure. Histology, cytokine ELISAs, and mass spectrometric-based analyses were performed. Histology and ELISA data confirmed previously seen lung damage and inflammatory markers from HD exposure. The multi-omic mass spectrometry data showed variation in proteins and metabolites associated with increased inflammation, as well as DNA and RNA damage. HD exposure causes DNA and RNA damage that results in variation of proteins and metabolites that are associated with transcription, translation and cellular energy.
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Affiliation(s)
- Elizabeth Dhummakupt
- US Army, Combat Capabilities Development Command (DEVCOM) Chemical Biological Center, BioSciences Division, Aberdeen Proving Ground, Edgewood, MD 21010, USA
- Correspondence: (E.D.); (D.A.)
| | - Conor Jenkins
- US Army, Combat Capabilities Development Command (DEVCOM) Chemical Biological Center, BioSciences Division, Aberdeen Proving Ground, Edgewood, MD 21010, USA
| | - Gabrielle Rizzo
- US Army, Combat Capabilities Development Command (DEVCOM) Chemical Biological Center, BioSciences Division, Aberdeen Proving Ground, Edgewood, MD 21010, USA
| | | | | | - Amber Prugh
- US Army, Combat Capabilities Development Command (DEVCOM) Chemical Biological Center, BioSciences Division, Aberdeen Proving Ground, Edgewood, MD 21010, USA
| | - Jennifer Horsmon
- US Army, Combat Capabilities Development Command (DEVCOM) Chemical Biological Center, Threat Agent Sciences Division, Aberdeen Proving Ground, Edgewood, MD 21010, USA
| | - Julie Renner
- US Army, Combat Capabilities Development Command (DEVCOM) Chemical Biological Center, Threat Agent Sciences Division, Aberdeen Proving Ground, Edgewood, MD 21010, USA
| | - Daniel Angelini
- US Army, Combat Capabilities Development Command (DEVCOM) Chemical Biological Center, BioSciences Division, Aberdeen Proving Ground, Edgewood, MD 21010, USA
- Correspondence: (E.D.); (D.A.)
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3
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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: 65] [Impact Index Per Article: 21.7] [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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4
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Sarif J, Raychaudhuri D, D'Rozario R, Bandopadhyay P, Singh P, Mehta P, Hoque MA, Sinha BP, Kushwaha M, Sahni S, Devi P, Chattopadhyay P, Paul SR, Ray Y, Chaudhuri K, Banerjee S, Majumdar D, Saha B, Sarkar BS, Bhattacharya P, Chatterjee S, Paul S, Ghosh P, Pandey R, Sengupta S, Ganguly D. Plasma Gradient of Soluble Urokinase-Type Plasminogen Activator Receptor Is Linked to Pathogenic Plasma Proteome and Immune Transcriptome and Stratifies Outcomes in Severe COVID-19. Front Immunol 2021; 12:738093. [PMID: 34777349 PMCID: PMC8581406 DOI: 10.3389/fimmu.2021.738093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 10/06/2021] [Indexed: 12/11/2022] Open
Abstract
Disease caused by SARS-CoV-2 coronavirus (COVID-19) led to significant morbidity and mortality worldwide. A systemic hyper-inflammation characterizes severe COVID-19 disease, often associated with acute respiratory distress syndrome (ARDS). Blood biomarkers capable of risk stratification are of great importance in effective triage and critical care of severe COVID-19 patients. Flow cytometry and next-generation sequencing were done on peripheral blood cells and urokinase-type plasminogen activator receptor (suPAR), and cytokines were measured from and mass spectrometry-based proteomics was done on plasma samples from an Indian cohort of COVID-19 patients. Publicly available single-cell RNA sequencing data were analyzed for validation of primary data. Statistical analyses were performed to validate risk stratification. We report here higher plasma abundance of suPAR, expressed by an abnormally expanded myeloid cell population, in severe COVID-19 patients with ARDS. The plasma suPAR level was found to be linked to a characteristic plasma proteome, associated with coagulation disorders and complement activation. Receiver operator characteristic curve analysis to predict mortality identified a cutoff value of suPAR at 1,996.809 pg/ml (odds ratio: 2.9286, 95% confidence interval 1.0427-8.2257). Lower-than-cutoff suPAR levels were associated with a differential expression of the immune transcriptome as well as favorable clinical outcomes, in terms of both survival benefit (hazard ratio: 0.3615, 95% confidence interval 0.1433-0.912) and faster disease remission in our patient cohort. Thus, we identified suPAR as a key pathogenic circulating molecule linking systemic hyperinflammation to the hypercoagulable state and stratifying clinical outcomes in severe COVID-19 patients with ARDS.
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Affiliation(s)
- Jafar Sarif
- Indian Institute of Chemical Biology (IICB)-Translational Research Unit of Excellence, Council of Scientific & Industrial Research (CSIR)-Indian Institute of Chemical Biology, Kolkata, India.,Department of Biological Sciences, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Deblina Raychaudhuri
- Indian Institute of Chemical Biology (IICB)-Translational Research Unit of Excellence, Council of Scientific & Industrial Research (CSIR)-Indian Institute of Chemical Biology, Kolkata, India
| | - Ranit D'Rozario
- Indian Institute of Chemical Biology (IICB)-Translational Research Unit of Excellence, Council of Scientific & Industrial Research (CSIR)-Indian Institute of Chemical Biology, Kolkata, India.,Department of Biological Sciences, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Purbita Bandopadhyay
- Indian Institute of Chemical Biology (IICB)-Translational Research Unit of Excellence, Council of Scientific & Industrial Research (CSIR)-Indian Institute of Chemical Biology, Kolkata, India.,Department of Biological Sciences, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Praveen Singh
- Department of Biological Sciences, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India.,Cardiorespiratory Disease Biology, Council of Scientific & Industrial Research (CSIR)-Institute of Genomics and Integrative Biology, New Delhi, India
| | - Priyanka Mehta
- INtegrative GENomics of HOst-PathogEn (INGEN-HOPE) Laboratory, Council of Scientific & Industrial Research (CSIR)-Institute of Genomics and Integrative Biology, New Delhi, India
| | - Md Asmaul Hoque
- Indian Institute of Chemical Biology (IICB)-Translational Research Unit of Excellence, Council of Scientific & Industrial Research (CSIR)-Indian Institute of Chemical Biology, Kolkata, India.,Department of Biological Sciences, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Bishnu Prasad Sinha
- Indian Institute of Chemical Biology (IICB)-Translational Research Unit of Excellence, Council of Scientific & Industrial Research (CSIR)-Indian Institute of Chemical Biology, Kolkata, India.,Department of Biological Sciences, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Manoj Kushwaha
- Cardiorespiratory Disease Biology, Council of Scientific & Industrial Research (CSIR)-Institute of Genomics and Integrative Biology, New Delhi, India
| | - Shweta Sahni
- INtegrative GENomics of HOst-PathogEn (INGEN-HOPE) Laboratory, Council of Scientific & Industrial Research (CSIR)-Institute of Genomics and Integrative Biology, New Delhi, India
| | - Priti Devi
- Department of Biological Sciences, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India.,INtegrative GENomics of HOst-PathogEn (INGEN-HOPE) Laboratory, Council of Scientific & Industrial Research (CSIR)-Institute of Genomics and Integrative Biology, New Delhi, India
| | - Partha Chattopadhyay
- Department of Biological Sciences, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India.,INtegrative GENomics of HOst-PathogEn (INGEN-HOPE) Laboratory, Council of Scientific & Industrial Research (CSIR)-Institute of Genomics and Integrative Biology, New Delhi, India
| | - Shekhar Ranjan Paul
- Department of Medicine, Infectious Diseases and Beliaghata General (ID & BG) Hospital, Kolkata, India
| | - Yogiraj Ray
- Department of Medicine, Infectious Diseases and Beliaghata General (ID & BG) Hospital, Kolkata, India.,Department of Tropical Medicine, School of Tropical Medicine, Kolkata, India
| | - Kausik Chaudhuri
- Department of Medicine, Infectious Diseases and Beliaghata General (ID & BG) Hospital, Kolkata, India
| | - Sayantan Banerjee
- Department of Medicine, Infectious Diseases and Beliaghata General (ID & BG) Hospital, Kolkata, India
| | - Debajyoti Majumdar
- Department of Medicine, Infectious Diseases and Beliaghata General (ID & BG) Hospital, Kolkata, India.,Department of Tropical Medicine, School of Tropical Medicine, Kolkata, India
| | - Bibhuti Saha
- Department of Tropical Medicine, School of Tropical Medicine, Kolkata, India
| | - Biswanath Sharma Sarkar
- Department of Medicine, Infectious Diseases and Beliaghata General (ID & BG) Hospital, Kolkata, India
| | - Prasun Bhattacharya
- Department of Immunohematology and Blood Transfusion, Medical College, Kolkata, India
| | - Shilpak Chatterjee
- Indian Institute of Chemical Biology (IICB)-Translational Research Unit of Excellence, Council of Scientific & Industrial Research (CSIR)-Indian Institute of Chemical Biology, Kolkata, India
| | - Sandip Paul
- Indian Institute of Chemical Biology (IICB)-Translational Research Unit of Excellence, Council of Scientific & Industrial Research (CSIR)-Indian Institute of Chemical Biology, Kolkata, India
| | - Pramit Ghosh
- Department of Community Medicine, Deben Mahata Government Medical College & Hospital, Purulia, India
| | - Rajesh Pandey
- Department of Biological Sciences, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India.,INtegrative GENomics of HOst-PathogEn (INGEN-HOPE) Laboratory, Council of Scientific & Industrial Research (CSIR)-Institute of Genomics and Integrative Biology, New Delhi, India
| | - Shantanu Sengupta
- Department of Biological Sciences, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India.,Cardiorespiratory Disease Biology, Council of Scientific & Industrial Research (CSIR)-Institute of Genomics and Integrative Biology, New Delhi, India
| | - Dipyaman Ganguly
- Indian Institute of Chemical Biology (IICB)-Translational Research Unit of Excellence, Council of Scientific & Industrial Research (CSIR)-Indian Institute of Chemical Biology, Kolkata, India.,Department of Biological Sciences, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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5
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Stauning MA, Altintas I, Kallemose T, Eugen-Olsen J, Lindstrøm MB, Rasmussen LJH, Gamst-Jensen H, Nehlin JO, Andersen O, Tingleff J. Soluble Urokinase Plasminogen Activator Receptor as a Decision Marker for Early Discharge of Patients with COVID-19 Symptoms in the Emergency Department. J Emerg Med 2021; 61:298-313. [PMID: 34092446 PMCID: PMC7997406 DOI: 10.1016/j.jemermed.2021.03.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 02/15/2021] [Accepted: 03/17/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND Severe acute respiratory syndrome coronavirus 2 (The Covid-19 pandemic) strains health care capacity. Better risk stratification, with discharge of patients with a predicted mild disease trajectory, can ease this burden. Elevated blood-soluble urokinase plasminogen activator receptor (suPAR) has previously been shown to be associated with risk of intubation in confirmed COVID-19 patients. OBJECTIVE To evaluate whether point-of-care measures of suPAR in patients presenting to the emergency department (ED) with symptoms of COVID-19 can identify patients that can be safely discharged. METHODS Observational cohort study including all patients in the ED with symptoms of COVID-19 from March 19 to April 3, 2020. SuPAR was measured at first presentation. Review of electronic patient records 14 days after admission was used to assess disease trajectory. Primary endpoints were mild, moderate, severe, or very severe trajectory. The predictive value of suPAR, National Early Warning Score (NEWS), C-reactive protein (CRP), and duration of symptoms was calculated using receiver operating characteristics (ROC). RESULTS Of 386 patients, 171 (44%) had a mild disease trajectory, 79 (20%) a moderate, 63 (16%) a severe, and 73 (19%) a very severe disease trajectory. Low suPAR was a strong marker of mild disease trajectory. Results suggest a cut-off for discharge for suPAR < 2.0 ng/mL if suPAR is used as a single parameter, and <3.0 ng/mL when combined with NEWS ≤ 4 and CRP < 10 mg/L. CONCLUSION suPAR is a potential biomarker for triage and safe early discharge of patients with COVID-19 symptoms in the ED. suPAR can be used even before SARS-CoV-2 status is known.
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Affiliation(s)
- Marius Ahm Stauning
- Department of Emergency Medicine, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Izzet Altintas
- Department of Emergency Medicine, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark; Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Thomas Kallemose
- Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Jesper Eugen-Olsen
- Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Mette Bendtz Lindstrøm
- Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - 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
| | - Hejdi Gamst-Jensen
- Department of Emergency Medicine, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark; Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Jan O Nehlin
- Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Ove Andersen
- Department of Emergency Medicine, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark; Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark; Department of Clinical Medicine, Copenhagen University, Copenhagen, Denmark
| | - Jens Tingleff
- Department of Emergency Medicine, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
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6
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Altintas I, Eugen-Olsen J, Seppälä S, Tingleff J, Stauning MA, El Caidi NO, Elmajdoubi S, Gamst-Jensen H, Lindstrøm MB, Rasmussen LJH, Kristiansen KT, Rasmussen C, Nehlin JO, Kallemose T, Hyppölä H, Andersen O. suPAR Cut-Offs for Risk Stratification in Patients With Symptoms of COVID-19. Biomark Insights 2021; 16:11772719211034685. [PMID: 34421295 PMCID: PMC8371731 DOI: 10.1177/11772719211034685] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 07/02/2021] [Indexed: 01/14/2023] Open
Abstract
Objectives Elevated soluble urokinase Plasminogen Activator Receptor (suPAR) is a biomarker associated with adverse outcomes. We aimed to investigate the associations between plasma suPAR levels (testing the cut-offs ⩽4, 4-6, and ⩾6 ng/mL) with risk of 14-day mortality, and with the risk of mechanical ventilation in patients that tested positive for SARS-CoV-2. Methods Observational cohort study of patients presenting with symptoms of COVID-19 at Department of Emergency Medicine, Amager and Hvidovre Hospital, Denmark from March 19th, 2020 to April 3rd, 2020. Plasma suPAR was measured using suPARnostic technologies. Patients were followed for development of mechanical ventilation and mortality for 14 days. Validation of our findings were carried out in a similar sized COVID-19 patient cohort from Mikkeli Central Hospital, Finland. Results Among 386 patients with symptoms of COVID-19, the median (interquartile range) age was 64 years (46-77), 57% were women, median suPAR was 4.0 ng/mL (2.7-5.9). In total, 35 patients (9.1%) died during the 14 days follow-up. Patients with suPAR ⩽4 ng/mL (N = 196; 50.8%) had a low risk of mortality (N = 2; 1.0%; negative predictive value of 99.0%, specificity 55.3%, sensitivity 95.2%, positive predictive value 17.4%). Among patients with suPAR ⩾6 ng/mL (N = 92; 23.8%), 16 died (17.4%). About 99 patients (25.6%) tested positive for SARS CoV-2 and of those 12 (12.1%) developed need for mechanical ventilation. None of the SARS-CoV-2 positive patients with suPAR ⩽4 ng/mL (N = 28; 38.8%) needed mechanical ventilation or died. The Mikkeli Central Hospital validation cohort confirmed our findings concerning suPAR cut-offs for risk of development of mechanical ventilation and mortality. Conclusions Patients with symptoms of COVID-19 and suPAR ⩽4 or ⩾6 ng/mL had low or high risk, respectively, concerning the need for mechanical ventilation or mortality. We suggest cut-offs for identification of risk groups in patients presenting to the ED with symptoms of or confirmed COVID-19.
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Affiliation(s)
- Izzet Altintas
- Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark.,Department of Emergency Medicine, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Jesper Eugen-Olsen
- Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Santeri Seppälä
- Emergency Department, Mikkeli Central Hospital, Mikkeli, Finland
| | - Jens Tingleff
- Department of Emergency Medicine, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Marius Ahm Stauning
- Department of Emergency Medicine, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Nora Olsen El Caidi
- Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Sanaá Elmajdoubi
- Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Hejdi Gamst-Jensen
- Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark.,Department of Emergency Medicine, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Mette B Lindstrøm
- Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - 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, USA
| | - Klaus Tjelle Kristiansen
- Department of Anesthesiology Intensive Care Unit, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Christian Rasmussen
- Department of Emergency Medicine, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Jan O Nehlin
- Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Thomas Kallemose
- Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Harri Hyppölä
- Emergency Department, Mikkeli Central Hospital, Mikkeli, Finland
| | - Ove Andersen
- Department of Clinical Research, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark.,Department of Emergency Medicine, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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7
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Eleven genomic loci affect plasma levels of chronic inflammation marker soluble urokinase-type plasminogen activator receptor. Commun Biol 2021; 4:655. [PMID: 34079037 PMCID: PMC8172928 DOI: 10.1038/s42003-021-02144-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 04/23/2021] [Indexed: 12/12/2022] Open
Abstract
Soluble urokinase-type plasminogen activator receptor (suPAR) is a chronic inflammation marker associated with the development of a range of diseases, including cancer and cardiovascular disease. The genetics of suPAR remain unexplored but may shed light on the biology of the marker and its connection to outcomes. We report a heritability estimate of 60% for the variation in suPAR and performed a genome-wide association meta-analysis on suPAR levels measured in Iceland (N = 35,559) and in Denmark (N = 12,177). We identified 13 independently genome-wide significant sequence variants associated with suPAR across 11 distinct loci. Associated variants were found in and around genes encoding uPAR (PLAUR), its ligand uPA (PLAU), the kidney-disease-associated gene PLA2R1 as well as genes with relations to glycosylation, glycoprotein biosynthesis, and the immune response. These findings provide new insight into the causes of variation in suPAR plasma levels, which may clarify suPAR's potential role in associated diseases, as well as the underlying mechanisms that give suPAR its prognostic value as a unique marker of chronic inflammation.
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8
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Fibrinogen is a promising biomarker for chronic obstructive pulmonary disease: evidence from a meta-analysis. Biosci Rep 2021; 40:225825. [PMID: 32677669 PMCID: PMC7383837 DOI: 10.1042/bsr20193542] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 07/08/2020] [Accepted: 07/15/2020] [Indexed: 02/08/2023] Open
Abstract
Backgrounds: Some studies have reported association of circulating fibrinogen with the risk of chronic obstructive pulmonary disease (COPD), and the results are conflicting. To yield more information, we aimed to test the hypothesis that circulating fibrinogen is a promising biomarker for COPD by a meta-analysis. Methods: Data extraction and quality assessment were independently completed by two authors. Effect-size estimates are expressed as weighted mean difference (WMD) with 95% confidence interval (95% CI). Results: Forty-five articles involving 5586/18604 COPD patients/controls were incorporated. Overall analyses revealed significantly higher concentrations of circulating fibrinogen in COPD patients than in controls (WMD: 84.67 mg/dl; 95% CI: 64.24–105.10). Subgroup analyses by COPD course showed that the degree of increased circulating fibrinogen in patients with acute exacerbations of COPD (AECOPD) relative to controls (WMD: 182.59 mg/dl; 95% CI: 115.93–249.25) tripled when compared in patients with stable COPD (WMD: 56.12 mg/dl; 95% CI: 34.56–77.67). By COPD severity, there was a graded increase in fibrinogen with the increased severity of COPD relative to controls (Global Initiative for Obstructive Lung Disease (GOLD) I, II, III, and IV: WMD: 13.91, 29.19, 56.81, and 197.42 mg/dl; 95% CI: 7.70–20.11, 17.43–40.94, 39.20–74.41, and −7.88 to 402.73, respectively). There was a low probability of publication bias. Conclusion: Our findings indicate a graded, concentration-dependent, significant relation between higher circulating fibrinogen and more severity of COPD.
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9
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Sever ZK, Bircan HA, Sirin FB, Evrimler S, Celik S, Merd N. Serum biomarkers in patients with stable and exacerbated COPD-bronchiectasis overlap syndrome. THE CLINICAL RESPIRATORY JOURNAL 2020; 14:1032-1039. [PMID: 32750728 DOI: 10.1111/crj.13238] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 07/16/2020] [Accepted: 07/27/2020] [Indexed: 06/11/2023]
Abstract
INTRODUCTION Bronchiectasis (B), commonly seen in patients with chronic obstructive pulmonary disease (COPD), is associated with exacerbations and predicts mortality. OBJECTIVES To differentiate patient groups with COPD-(B+) or COPD-(B-) and their exacerbations by using inflammatory markers. METHODS Consecutive COPD patients were divided into two groups according to findings on high resolution thorax CT (HRCT) images using Smith and modified Reiff scores. Patients were prospectively followed for possible future exacerbations. Serum fibrinogen, C-reactive protein (CRP), soluble urokinase-type plasminogen activator receptor (suPAR) and Plasminogen activator inhibitor-1 (PAI-1) levels were studied during exacerbation and stable periods. RESULTS Eighty-seven patients were included and (85 M, 2 F), mean aged was 68.1 ± 9 (46-87). HRCT confirmed bronchiectasis in 38 (43.7%) patients, most commonly in tubular form (89.4%) and in lower lobes. COPD-B(+) group had lower body mass index (P = 0.036), more advanced stage of disease (P = 0.004) and more frequent exacerbation (P = 0.01). The HRCT scores were correlated with exacerbation rate (r = 0.356, P < 0.05). Fibrinogen and CRP values were higher in exacerbation (P = 0.01, P = 0.013, respectively) especially in COPD-B(+) patients. suPAR and PAI-1 levels were also higher in COPD-B(+) patients although it was not statistically significant. CONCLUSION Bronchiectasis is common and causes frequent exacerbations in COPD. Identifying of COPD-B(+) phenotype by HRCT scoring systems has considerable importance for both therapeutic options and clinical outcome of the disease. In addition to fibrinogen and CRP, high serum levels of suPAR and PAI-1 suggest us their significant roles in increased systemic inflammation associated with coexisting of COPD and bronchiectasis.
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Affiliation(s)
- Zekiye Kula Sever
- Department of Pulmonary Medicine, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Haci Ahmet Bircan
- Department of Pulmonary Medicine, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Fevziye Burcu Sirin
- Department of Biochemistry, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Sehnaz Evrimler
- Department of Radiology, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Seda Celik
- Department of Biochemistry, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Neslihan Merd
- Department of Radiology, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
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10
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Huang Q, Xiong H, Shuai T, Wang Y, Zhang C, Zhang M, Zhu L, Lu J, Liu J. The clinical value of suPAR in diagnosis and prediction for patients with chronic obstructive pulmonary disease: a systematic review and meta-analysis. Ther Adv Respir Dis 2020; 14:1753466620938546. [PMID: 32643535 PMCID: PMC7350130 DOI: 10.1177/1753466620938546] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Soluble urokinase-type plasminogen activator receptor (suPAR) is positively correlated with immune system activity. Inflammation can promote the development of chronic obstructive pulmonary disease (COPD). Therefore, this study conducted a systematic review and meta-analysis to assess the association between suPAR levels and the pathogenesis of COPD, and further assess the exact clinical value of suPAR in COPD. METHODS PubMed, Excerpt Medica Database (Embase), Web of Science (WOS), and Cochrane Library databases were searched for studies that reported the value of suPAR diagnosis for adult COPD patients. RESULTS A total of 11 studies were included, involving 4520 participants. Both COPD patients with predicted forced expiratory volume in 1 s (FEV1)⩾80% [weighted mean difference (WMD) = 320.25; 95% confidence interval (CI): 99.79-540.71] and FEV1 < 80% (WMD = 2950.74; 95% CI: 2647.06-3254.43) showed higher suPAR level. The sensitivity and specificity of suPAR for diagnosis of COPD were 87% and 79%, respectively, and AUC was 84%. This can not only effectively identify acute exacerbation of COPD (AECOPD) in a healthy population (WMD = 3114.77; 95% CI: 2814.66-3414.88), but also has the potential to distinguish AECOPD from stable COPD (WMD = 351.40; 95% CI: 215.88-486.93). There was a significant decrease of suPAR level after treatment [WMD = -1226.97; 95% CI: -1380.91- (-1073.03)]. CONCLUSION suPAR as a novel biomarker has potential for early diagnosis of COPD and prediction of AECOPD. There is a potential correlation between the level of suPAR and the state of COPD, which may also indicate the early state and severity of COPD. When the suPAR level of COPD patients is further increased, the risk of acute exacerbation increases and should be highly valued. This also shows potential as a measure of treatment response, and as a guide to the clinical management in COPD. The reviews of this paper are available via the supplemental material section.
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Affiliation(s)
- Qiangru Huang
- Department of Intensive Care Unit, The First Hospital of Lanzhou University, Lanzhou, China.,The First Clinical Medical College of the First Hospital of Lanzhou University, Lanzhou, China
| | - Huaiyu Xiong
- Department of Intensive Care Unit, The First Hospital of Lanzhou University, Lanzhou, China.,The First Clinical Medical College of the First Hospital of Lanzhou University, Lanzhou, China
| | - Tiankui Shuai
- Department of Intensive Care Unit, The First Hospital of Lanzhou University, Lanzhou, China.,The First Clinical Medical College of the First Hospital of Lanzhou University, Lanzhou, China
| | - Yalei Wang
- Department of Intensive Care Unit, The First Hospital of Lanzhou University, Lanzhou, China.,The First Clinical Medical College of the First Hospital of Lanzhou University, Lanzhou, China
| | - Chuchu Zhang
- Department of Intensive Care Unit, The First Hospital of Lanzhou University, Lanzhou, China.,The First Clinical Medical College of the First Hospital of Lanzhou University, Lanzhou, China
| | - Meng Zhang
- Department of Intensive Care Unit, The First Hospital of Lanzhou University, Lanzhou, China.,The First Clinical Medical College of the First Hospital of Lanzhou University, Lanzhou, China
| | - Lei Zhu
- Department of Intensive Care Unit, The First Hospital of Lanzhou University, Lanzhou, China.,The First Clinical Medical College of the First Hospital of Lanzhou University, Lanzhou, China
| | - Jiaju Lu
- Department of Intensive Care Unit, The First Hospital of Lanzhou University, Lanzhou, China.,The First Clinical Medical College of the First Hospital of Lanzhou University, Lanzhou, China
| | - Jian Liu
- Department of Intensive Care Unit, The First Hospital of Lanzhou University, Lanzhou, 730000, China.,The First Clinical Medical College of the First Hospital of Lanzhou University, Lanzhou, 730000, China
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11
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D'Alonzo D, De Fenza M, Pavone V. COVID-19 and pneumonia: a role for the uPA/uPAR system. Drug Discov Today 2020; 25:1528-1534. [PMID: 32562843 PMCID: PMC7299864 DOI: 10.1016/j.drudis.2020.06.013] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 05/14/2020] [Accepted: 06/11/2020] [Indexed: 12/29/2022]
Abstract
Here, we highlight recent findings on the urokinase plasminogen activator (uPA)/uPA receptor (uPAR) system that suggest its potential role as a main orchestrator of fatal progression to pulmonary, kidney, and heart failure in patients with coronavirus. Patients with prolonged background inflammation can present aberrant inflammatory reactions, well recognized as the main factors that can result in death and probably sustained by a dysregulated uPA/uPAR system. SuPAR, the soluble form of uPAR, represents a biomarker of disease progression, and its levels correlate well with comorbidities associated with the death of patients with coronavirus. New drugs that regulate the uPA/uPAR system could help treat the severe complications of highly pathogenic human coronaviruses (hCoVs), including pandemic coronavirus 2019 (COVID-19).
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Affiliation(s)
- Daniele D'Alonzo
- University of Naples 'Federico II', Department of Chemical Sciences, Complesso Universitario di Monte Sant'Angelo, Via Cintia 46, 80126 Naples, Italy
| | - Maria De Fenza
- University of Naples 'Federico II', Department of Chemical Sciences, Complesso Universitario di Monte Sant'Angelo, Via Cintia 46, 80126 Naples, Italy
| | - Vincenzo Pavone
- University of Naples 'Federico II', Department of Chemical Sciences, Complesso Universitario di Monte Sant'Angelo, Via Cintia 46, 80126 Naples, Italy.
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12
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Håkansson KEJ, Ulrik CS, Godtfredsen NS, Kallemose T, Andersen O, Eugen-Olsen J, Marsaa K, Rasmussen LJH. High suPAR and Low Blood Eosinophil Count are Risk Factors for Hospital Readmission and Mortality in Patients with COPD. Int J Chron Obstruct Pulmon Dis 2020; 15:733-743. [PMID: 32308381 PMCID: PMC7147624 DOI: 10.2147/copd.s229904] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 02/21/2020] [Indexed: 12/20/2022] Open
Abstract
Introduction The biomarker soluble urokinase plasminogen activator receptor (suPAR) has been associated with increased mortality in chronic obstructive pulmonary disease (COPD), while elevated blood eosinophils have been associated with better survival. We hypothesized that suPAR and blood eosinophil count are independent risk factors for readmission and mortality after an acute admission in patients with COPD. Methods This retrospective cohort study comprised 4022 patients with prevalent COPD acutely admitted to Hvidovre Hospital, Denmark. Irrespective of cause of admission, suPAR and blood eosinophils were measured, and patients were followed up to 365 days. Associations with 365-day respiratory readmission, all-cause readmission and all-cause mortality were investigated by Cox regression analyses adjusted for age, sex, Charlson score and C-reactive protein. Results suPAR was significantly elevated in patients who later experienced readmission or died. At 365 days, hazard ratios (HRs) for all-cause readmission and mortality reached 1.61 (95% CI 1.40–1.85; p<0.0001) and 3.40 (95% CI 2.64–4.39; p<0.0001), respectively, for COPD patients in the fourth suPAR quartile compared to patients in the first suPAR quartile. High blood eosinophils (>300 cells/μL) were associated with lower risk of mortality (HR 0.49, 95% CI 0.39–0.62; p<0.0001) compared with patients with <150 cells/μL. When stratifying patients by suPAR quartiles and blood eosinophil counts, the highest relative mortality rate was found in patients belonging to both the fourth suPAR quartile and the low blood eosinophil (<150 cells/μL) group. Conclusion In this cohort of COPD patients acutely admitted to a hospital, elevated suPAR concentrations were associated with both higher risk of all-cause readmission and mortality, whereas higher blood eosinophil count was associated with lower risk of mortality.
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Affiliation(s)
- Kjell E J Håkansson
- Department of Respiratory Medicine, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Charlotte S Ulrik
- Department of Respiratory Medicine, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark.,Institute of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Nina S Godtfredsen
- Department of Respiratory Medicine, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark.,Institute of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Kallemose
- Clinical Research Centre, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Ove Andersen
- Institute of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.,Clinical Research Centre, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark.,Emergency Department, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Jesper Eugen-Olsen
- Clinical Research Centre, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark
| | - Kristoffer Marsaa
- Palliative Unit, Copenhagen University Hospital Herlev and Gentofte, Herlev, Denmark
| | - Line J H Rasmussen
- Clinical Research Centre, Copenhagen University Hospital Amager and Hvidovre, Hvidovre, Denmark.,Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
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13
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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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14
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Polzik P, Grøndal O, Tavenier J, Madsen MB, Andersen O, Hedetoft M, Hyldegaard O. SuPAR correlates with mortality and clinical severity in patients with necrotizing soft-tissue infections: results from a prospective, observational cohort study. Sci Rep 2019; 9:5098. [PMID: 30911053 PMCID: PMC6434142 DOI: 10.1038/s41598-019-41688-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 03/13/2019] [Indexed: 01/12/2023] Open
Abstract
Necrotizing soft tissue infections (NSTI) have a 90-day mortality rate of 18–22%. Tools are needed for estimating the prognosis and severity of NSTI upon admission. We evaluated soluble urokinase-type plasminogen activator receptor (suPAR) levels at admission as a prognostic marker of NSTI severity and mortality. In a prospective, observational cohort study, suPAR was measured in 200 NSTI patients. We compared admission suPAR levels in survivors and non-survivors, patients with septic shock and non-shock, amputation and non-amputation, correlations with Simplified Acute Physiology Score II (SAPS II) and the Sequential Organ Failure Assessment (SOFA) score. Admission suPAR levels were higher in septic shock vs. non-septic shock patients (9.2 vs. 5.8 ng/mL, p-value < 0.001) and non-survivors vs. survivors (11 vs. 6.1 ng/mL, p-value < 0.001) and correlated with SAPS II (r = 0.52, p < 0.001) and SOFA score (r = 0.64, p < 0.001). Elevated suPAR upon admission was associated with 90-day mortality (log-rank test p < 0.001), however not after adjustment for age, sex, and SOFA score. The AUC for suPAR and 90-day mortality was 0.77. We found that suPAR is a promising candidate for prognosis and severity in patients with NSTI.
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Affiliation(s)
- Peter Polzik
- Department of Anesthesiology, Center of Head and Orthopedics, Copenhagen University Hospital (Rigshospitalet), Copenhagen Ø, Denmark.
| | - Olav Grøndal
- Department of Anesthesiology, Center of Head and Orthopedics, Copenhagen University Hospital (Rigshospitalet), Copenhagen Ø, Denmark
| | - Juliette Tavenier
- Clinical Research Center, Copenhagen University Hospital (Hvidovre), Hvidovre, Denmark
| | - Martin B Madsen
- Department of Intensive Care, Copenhagen University Hospital (Rigshospitalet), Copenhagen, Denmark
| | - Ove Andersen
- Clinical Research Center, Copenhagen University Hospital (Hvidovre), Hvidovre, Denmark.,The Emergency Department, Copenhagen University Hospital (Hvidovre), Hvidovre, Denmark
| | - Morten Hedetoft
- Hyperbaric Medicine Center, Department of Anesthesiology, Center of Head and Orthopedics, University Hospital of Copenhagen (Rigshospitalet), Copenhagen, Denmark
| | - Ole Hyldegaard
- Department of Anesthesiology, Center of Head and Orthopedics, Copenhagen University Hospital (Rigshospitalet), Copenhagen Ø, Denmark
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15
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Böcskei RM, Benczúr B, Losonczy G, Illyés M, Cziráki A, Müller V, Bohács A, Bikov A. Soluble Urokinase-Type Plasminogen Activator Receptor and Arterial Stiffness in Patients with COPD. Lung 2019; 197:189-197. [PMID: 30820636 PMCID: PMC6486892 DOI: 10.1007/s00408-019-00211-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 02/18/2019] [Indexed: 02/01/2023]
Abstract
Introduction Soluble urokinase-type plasminogen activator receptor (suPAR) is upregulated by inflammation and plays a role in the pathogenesis of atherosclerosis. Chronic obstructive pulmonary disease (COPD) is associated with enhanced systemic inflammation and increased risk for atherosclerosis, however, studies analysing the circulating suPAR levels in COPD are contradictory. The aim of the study was to investigate plasma suPAR concentrations together with markers of arterial stiffness in COPD. Materials and Methods Twenty-four patients with COPD and 18 non-COPD, control subjects participated in the study. Plasma suPAR was measured, together with lung volumes, symptom burden, exacerbation history, markers of arterial stiffness and soluble inflammatory biomarkers, such as endothelin-1, high-sensitivity C-reactive protein (hsCRP), interleukin-6 (IL-6). Results Plasma suPAR levels were higher in COPD (2.84 ± 0.67 ng/ml vs. 2.41 ± 0.57 ng/ml, p = 0.03) and were related to lung function measured with FEV1 (r = − 0.65, p < 0.01) and symptom burden determined with the modified Medical Research Council questionnaire (r = 0.55, p < 0.05). Plasma suPAR concentrations correlated with various measures of arterial stiffness in all subjects, but only with ejection duration in COPD (r = − 0.44, p = 0.03). Conclusions Plasma suPAR levels are elevated in COPD and relate to arterial stiffness. Our results suggest that suPAR may be a potential link between COPD and atherosclerosis.
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Affiliation(s)
- Renáta M Böcskei
- Department of Pulmonology, Semmelweis University, Diós árok Street. 1/c, Budapest, 1125, Hungary.
| | - Béla Benczúr
- 1st Dept of Internal Medicine (Cardiology/Nephrology), Balassa Janos County Hospital, Béri Balogh Ádám Street 5-7, Szekszárd, 7100, Hungary
| | - György Losonczy
- Department of Pulmonology, Semmelweis University, Diós árok Street. 1/c, Budapest, 1125, Hungary
| | - Miklós Illyés
- Heart Institute, Faculty of Medicine, University of Pécs, Ifjúság Street 13, Pecs, 7624, Hungary
| | - Attila Cziráki
- Heart Institute, Faculty of Medicine, University of Pécs, Ifjúság Street 13, Pecs, 7624, Hungary
| | - Veronika Müller
- Department of Pulmonology, Semmelweis University, Diós árok Street. 1/c, Budapest, 1125, Hungary
| | - Anikó Bohács
- Department of Pulmonology, Semmelweis University, Diós árok Street. 1/c, Budapest, 1125, Hungary
| | - András Bikov
- Department of Pulmonology, Semmelweis University, Diós árok Street. 1/c, Budapest, 1125, Hungary
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16
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AboEl-Magd GH, Mabrouk MM. Soluble urokinase-type plasminogen activator receptor as a measure of treatment response in acute exacerbation of COPD. ACTA ACUST UNITED AC 2019. [PMID: 29538541 PMCID: PMC6104538 DOI: 10.1590/s1806-37562017000000151] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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.
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Affiliation(s)
| | - Maaly Mohamed Mabrouk
- . Clinical Pathology Department, Faculty of Medicine, Tanta University, Tanta, Gharbia, Egypt
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17
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Godtfredsen NS, Jørgensen DV, Marsaa K, Ulrik CS, Andersen O, Eugen-Olsen J, Rasmussen LJH. Soluble urokinase plasminogen activator receptor predicts mortality in exacerbated COPD. Respir Res 2018; 19:97. [PMID: 29783959 PMCID: PMC5963104 DOI: 10.1186/s12931-018-0803-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 05/02/2018] [Indexed: 01/26/2023] Open
Abstract
Background The inflammatory biomarker soluble urokinase plasminogen activator receptor (suPAR) is elevated in severe acute and chronic medical conditions and has been associated with short-term mortality. The role of suPAR in predicting risk of death following an acute exacerbation of chronic obstructive pulmonary disease (AECOPD) has never been studied. We hypothesized that increased suPAR is an independent predictor of short-term mortality in patients admitted to hospital with COPD or acute respiratory failure. Methods This retrospective cohort study from a university hospital in the Capital Region of Denmark included 2838 acutely admitted medical patients with COPD as primary (AECOPD) or secondary diagnosis, who had plasma suPAR measured at the time of admission between November 18th, 2013 to September 30th, 2015 and followed until December 31st, 2015. Primary outcomes were 30- and 90-days all-cause mortality. Association of suPAR and mortality was investigated by Cox regression analyses adjusted for age, sex, CRP values and Charlson comorbidity index. Results For patients with AECOPD or underlying COPD, median suPAR levels were significantly higher among patients who died within 30 days compared with those who survived (5.7 ng/ml (IQR 3.8–8.1) vs. 3.6 ng/ml (2.7–5.1), P < 0.0001). Increasing suPAR levels independently predicted 30-day mortality in patients with COPD with a hazard ratio of 2.0 (95% CI 1.7–2.4) but not respiratory failure. Conclusions In this large group of acutely admitted patients with COPD, elevated suPAR levels were associated with increased risk of mortality. The study supports the value of suPAR as a marker of poor prognosis. Electronic supplementary material The online version of this article (10.1186/s12931-018-0803-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Nina S Godtfredsen
- Department of Pulmonary Medicine, Amager and Hvidovre University Hospital, Hvidovre, Denmark. .,Institute of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
| | - Ditte V Jørgensen
- Department of Pulmonary Medicine, Amager and Hvidovre University Hospital, Hvidovre, Denmark
| | - Kristoffer Marsaa
- Palliative Unit, Gentofte and Herlev University Hospital, Herlev, Denmark
| | - Charlotte S Ulrik
- Department of Pulmonary Medicine, Amager and Hvidovre University Hospital, Hvidovre, Denmark.,Institute of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Ove Andersen
- Institute of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.,Clinical Research Center, Amager and Hvidovre University Hospital, Hvidovre, Denmark
| | - Jesper Eugen-Olsen
- Clinical Research Center, Amager and Hvidovre University Hospital, Hvidovre, Denmark
| | - Line J H Rasmussen
- Clinical Research Center, Amager and Hvidovre University Hospital, Hvidovre, Denmark
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18
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Zhao JJ, Lou XL, Chen HW, Zhu FT, Hou YQ. Diagnostic value of decoy receptor 3 combined with procalcitonin and soluble urokinase-type plasminogen activator receptor for sepsis. Cell Mol Biol Lett 2018; 23:22. [PMID: 29760745 PMCID: PMC5941621 DOI: 10.1186/s11658-018-0087-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 04/25/2018] [Indexed: 12/24/2022] Open
Abstract
The levels of decoy receptor 3 (DcR3), soluble urokinase type plasminogen activator receptor (suPAR) and procalcitonin (PCT) are significantly increased in sepsis. We investigated the diagnostic value of DcR3 combined with suPAR and PCT in sepsis. Patients with sepsis, non-infectious systemic inflammatory response comprehensive syndrome (SIRS) and healthy controls were recruited according to the diagnostic standard. We measured DcR3, suPAR, PCT, interleukin-6 (IL-6) and C-reactive protein (CRP), and the diagnostic value was evaluated by receiver operating characteristics (ROC) curves. In our analysis, serum DcR3, suPAR and PCT levels of the sepsis group were significantly higher than those of the SIRS and control groups. However, IL-6, CRP and WBC showed no significant difference between the SIRS group and the sepsis group. The serum DcR3 level was positively correlated with the serum suPAR level (r = 0.37, p = 0.0022) and PCT level (r = 0.37, p = 0.0021). Using DcR3, suPAR and PCT to distinguish SIRS from sepsis, the area under the curve (AUC) values were 0.892, 0.778 and 0.692. When DcR3, suPAR and PCT combined were used for diagnosis of sepsis, the AUC was 0.933, at a cut-off point of 0.342. This combination improved the sensitivity and specificity of diagnosis of sepsis, suggesting that use of the combination of three indexes enhanced the efficiency of sepsis diagnosis.
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Affiliation(s)
- Jing-Jing Zhao
- Department of Central Laboratory, Songjiang Hospital Affiliated First People's Hospital, Shanghai Jiao Tong University, Shanghai, 201600 China
| | - Xiao-Li Lou
- Department of Central Laboratory, Songjiang Hospital Affiliated First People's Hospital, Shanghai Jiao Tong University, Shanghai, 201600 China
| | - Hong-Wei Chen
- Department of Central Laboratory, Songjiang Hospital Affiliated First People's Hospital, Shanghai Jiao Tong University, Shanghai, 201600 China
| | - Feng-Ting Zhu
- Department of Central Laboratory, Songjiang Hospital Affiliated First People's Hospital, Shanghai Jiao Tong University, Shanghai, 201600 China
| | - Yan-Qiang Hou
- Department of Central Laboratory, Songjiang Hospital Affiliated First People's Hospital, Shanghai Jiao Tong University, Shanghai, 201600 China
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Zhang J, Bai C. The Significance of Serum Interleukin-8 in Acute Exacerbations of Chronic Obstructive Pulmonary Disease. TANAFFOS 2018; 17:13-21. [PMID: 30116274 PMCID: PMC6087525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUNDS Acute exacerbation of chronic obstructive pulmonary disease (AECOPD) is closely related to disease mortality. Systemic inflammation is considered to be involved in the pathogenesis of AECOPD. The current study aimed to investigate the clinical significance of the classic chemokine interleukin (IL)-8 in serum during AECOPD. MATERIALS AND METHODS In this current cross sectional, observational study, 50 patients with AECOPD, 25 patients with stable COPD and 25 healthy nonsmokers as the control group were selected. Clinical characteristics and spirometry data were collected. All patients were classified as grade 1-4 based on forced expiratory volume in 1 second (FEV1) after bronchodilation according to the GOLD severity classification and were divided into frequent exacerbation (FE) group (≥2 times/year) and non-frequent exacerbation (NFE) group (<1 time/year) according to acute exacerbation (AE) times in the previous 12 months before the visit. The serum IL-8, IL-6, tumor necrosis factor (TNF)-α, and superoxide dismutase levels were measured by the enzyme-linked immunosorbent assay technique. RESULTS Serum IL-8 levels increased sequentially from controls [9.45 pg/mL (ranged: 6.85-38.4)], to stable [51.60 pg/mL (ranged: 22.4-131.1)], and exacerbation stage [129 pg/mL (ranged: 57.7-374)]. The level of serum IL-8 was significant higher in patients with FE than that of patients with NFE (209.0 pg/mL (ranged: 115-472) vs 65.6 pg/mL (ranged: 11.2-149.3), P=0.008). A receiver operating characteristics curve (ROC) generated to evaluate IL-8, IL-6, and TNF-α levels to discriminate between patients with and without exacerbation showed that the total area under the curve (AUC) was 0.71 (95% confidence interval (CI): 0.5764-0.8381; P=0.003), 0.54 (95%CI: 0.4048-0.6943; P=0.54), and 0.52 (95%CI: 0.3912-0.6656; P= 0.7). CONCLUSION Serum IL-8 is a sensitive, easy-to-measure, and inexpensive biomarker to give an indication of the course of COPD during exacerbation, and is a target to be explored further as a predictor to distinguish the patients prone to exacerbation.
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Affiliation(s)
- Jingxi Zhang
- Correspondence to: Zhang J, Address: Department of Respiratory and Critical Care Medicine, Changhai Hospital, the Second Military Medical University, Shanghai, China, 200433, Email address:
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Polzik P, Johansson PI, Hyldegaard O. How biomarkers reflect the prognosis and treatment of necrotising soft tissue infections and the effects of hyperbaric oxygen therapy: the protocol of the prospective cohort PROTREAT study conducted at a tertiary hospital in Copenhagen, Denmark. BMJ Open 2017; 7:e017805. [PMID: 28982834 PMCID: PMC5640072 DOI: 10.1136/bmjopen-2017-017805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION Not enough is known regarding the prognosis and treatment of necrotising soft tissue infections (NSTIs). Mortality has been shown to be 25%-35%, with survivors coping with amputations and prolonged rehabilitation. This study will evaluate soluble urokinase-type plasminogen activator receptor (suPAR) as a possible prognostic marker of NSTI severity and mortality, as well as whether hyperbaric oxygen therapy (HBOT) can modulate markers of endothelial damage during NSTI. We hypothesise that in patients with NSTI, suPAR can provide prognostic risk assessment on hospital admission and that HBOT can reduce the endothelial damage that these patients are exposed to. METHODS AND ANALYSIS This is a prospective observational study. Biomarkers will be measured in 150 patients who have been diagnosed with NSTI. On admission, baseline blood samples will be obtained. Following surgery and HBOT, daily blood samples will be obtained in order to measure endothelial and prognostic biomarkers (soluble thrombomodulin, syndecan-1, sE-selectin, vascular endothelial (VE)-cadherin, protein C and suPAR levels). Clinical data will be acquired during the first 7 days of stay in the intensive care unit. The primary outcomes in studies I and II will be endothelial biomarker levels after HBOT, and in study III suPAR levels as a marker of disease prognosis and severity. ETHICS AND DISSEMINATION The study has been approved by the Regional Scientific Ethical Committee of Copenhagen (H-16021845) and the Danish Data Protection Agency (RH-2016-199). Results will be presented at national and international conferences and published in peer-reviewed scientific journals. TRIAL REGISTRATION NUMBER ClinicalTrials.gov Identifier NCT03147352. (Pre-results).
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Affiliation(s)
- Peter Polzik
- Department of Anesthesiology, Center of Head and Orthopedics, Copenhagen University Hospital (Rigshospitalet), Copenhagen Ø, Denmark
| | - Pär I Johansson
- Department of Clinical Immunology, Copenhagen University Hospital (Rigshospitalet), Copenhagen, Denmark
| | - Ole Hyldegaard
- Department of Anesthesiology, Center of Head and Orthopedics, Copenhagen University Hospital (Rigshospitalet), Copenhagen Ø, Denmark
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C-reactive protein and N-terminal prohormone brain natriuretic peptide as biomarkers in acute exacerbations of COPD leading to hospitalizations. PLoS One 2017; 12:e0174063. [PMID: 28328968 PMCID: PMC5362097 DOI: 10.1371/journal.pone.0174063] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 03/02/2017] [Indexed: 01/02/2023] Open
Abstract
There are currently no accepted and validated blood tests available for diagnosing acute exacerbations of chronic obstructive pulmonary disease (AECOPD). In this study, we sought to determine the discriminatory power of blood C-reactive protein (CRP) and N-terminal prohormone brain natriuretic peptide (NT-proBNP) in the diagnosis of AECOPD requiring hospitalizations. The study cohort consisted of 468 patients recruited in the COPD Rapid Transition Program who were hospitalized with a primary diagnosis of AECOPD, and 110 stable COPD patients who served as controls. Logistic regression was used to build a classification model to separate AECOPD from convalescent or stable COPD patients. Performance was assessed using an independent validation set of patients who were not included in the discovery set. Serum CRP and whole blood NT-proBNP concentrations were highest at the time of hospitalization and progressively decreased over time. Of the 3 classification models, the one with both CRP and NT-proBNP had the highest AUC in discriminating AECOPD (cross-validated AUC of 0.80). These data were replicated in a validation cohort with an AUC of 0.88. A combination of CRP and NT-proBNP can reasonably discriminate AECOPD requiring hospitalization versus clinical stability and can be used to rapidly diagnose patients requiring hospitalization for AECOPD.
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Sandø A, Schultz M, Eugen-Olsen J, Rasmussen LS, Køber L, Kjøller E, Jensen BN, Ravn L, Lange T, Iversen K. Introduction of a prognostic biomarker to strengthen risk stratification of acutely admitted patients: rationale and design of the TRIAGE III cluster randomized interventional trial. Scand J Trauma Resusc Emerg Med 2016; 24:100. [PMID: 27491822 PMCID: PMC4974743 DOI: 10.1186/s13049-016-0290-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 07/27/2016] [Indexed: 12/22/2022] Open
Abstract
Background Several biomarkers have shown to carry prognostic value beyond current triage algorithms and may aid in initial risk stratification of patients in the emergency department (ED). It has yet to be established if information provided by biomarkers can be used to prevent serious complications or deaths. Our aim is to determine whether measurement of the blood level of the biomarker soluble urokinase plasminogen activator receptor (suPAR) can enhance early risk stratification leading to reduced mortality, lower rate of complications, and improved patient flow in acutely admitted adult patients at the ED. The main hypothesis is that the availability of suPAR can reduce all-cause mortality, assessed at least 10 months after admission, by drawing attention towards patients with an unrecognized high risk, leading to improved diagnostics and treatment. Methods The study is designed as a cross-over cluster randomized interventional trial. SuPAR is measured within 2 h after admission and immediately reported to the treating physicians in the ED. All ED physicians are educated in the prognostic capabilities of suPAR prior to the inclusion period. The inclusion period began January 11th 2016 and ends June 6th 2016. The study aims to include 10.000 patients in both the interventional and control arm. The results will be presented in 2017. Discussion The present article aims to describe the design and rationale of the TRIAGE III study that will investigate whether the availability of prognostic information can improve outcome in acutely admitted patients. This might have an impact on health care organization and decision-making. Trial registration The trial is registered at clinicaltrials.gov (ID NCT02643459, November 13, 2015) and at the Danish Data Protection agency (ID HGH-2015-042 I-Suite no. 04087).
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Affiliation(s)
- Andreas Sandø
- Department of Cardiology, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, 2730, Herlev, Denmark.
| | - Martin Schultz
- Department of Cardiology, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, 2730, Herlev, Denmark.,Clinical Research Centre, Hvidovre Hospital, University of Copenhagen, Kettegård Alle 30, 2650, Hvidovre, Denmark
| | - Jesper Eugen-Olsen
- Clinical Research Centre, Hvidovre Hospital, University of Copenhagen, Kettegård Alle 30, 2650, Hvidovre, Denmark
| | - Lars Simon Rasmussen
- Department of Anaesthesia, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Lars Køber
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Erik Kjøller
- Department of Cardiology, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, 2730, Herlev, Denmark
| | - Birgitte Nybo Jensen
- Department of Emergency Medicine, Bispebjerg Hospital, University of Copenhagen, Bispebjerg Bakke 23, 2400, Copenhagen, Denmark
| | - Lisbet Ravn
- Department of Emergency Medicine, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, 2730, Herlev, Denmark
| | - Theis Lange
- Department of Public Health, University of Copenhagen, Øster Farimagsgade 5, 1014, Copenhagen, Denmark
| | - Kasper Iversen
- Department of Cardiology, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, 2730, Herlev, Denmark
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Chen YWR, Leung JM, Sin DD. A Systematic Review of Diagnostic Biomarkers of COPD Exacerbation. PLoS One 2016; 11:e0158843. [PMID: 27434033 PMCID: PMC4951145 DOI: 10.1371/journal.pone.0158843] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 06/22/2016] [Indexed: 01/03/2023] Open
Abstract
The aims of this systematic review were to determine which blood-based molecules have been evaluated as possible biomarkers to diagnose chronic obstructive pulmonary disease (COPD) exacerbations (AECOPD) and to ascertain the quality of these biomarker publications. Patients of interest were those that have been diagnosed with COPD. MEDLINE, EMBASE, and CINAHL databases were searched systematically through February 2015 for publications relating to AECOPD diagnostic biomarkers. We used a modified guideline for the REporting of tumor MARKer Studies (mREMARK) to assess study quality. Additional components of quality included the reporting of findings in a replication cohort and the use of receiver-operating characteristics area-under-the curve statistics in evaluating performance. 59 studies were included, in which the most studied biomarkers were C-reactive protein (CRP), interleukin-6 (IL-6), and tumor necrosis factor-alpha (TNF-α). CRP showed consistent elevations in AECOPD compared to control subjects, while IL-6 and TNF-α had variable statistical significance and results. mREMARK scores ranged from 6 to 18 (median score of 13). 12 articles reported ROC analyses and only one study employed a replication cohort to confirm biomarker performance. Studies of AECOPD diagnostic biomarkers remain inconsistent in their reporting, with few studies employing ROC analyses and even fewer demonstrating replication in independent cohorts.
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Affiliation(s)
- Yu-Wei Roy Chen
- Centre for Heart Lung Innovation, Institute for Heart Lung Health at St. Paul’s Hospital & Department of Medicine, Division of Respiratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Janice M. Leung
- Centre for Heart Lung Innovation, Institute for Heart Lung Health at St. Paul’s Hospital & Department of Medicine, Division of Respiratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Don D. Sin
- Centre for Heart Lung Innovation, Institute for Heart Lung Health at St. Paul’s Hospital & Department of Medicine, Division of Respiratory Medicine, University of British Columbia, Vancouver, BC, Canada
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Mandal J, Roth M, Costa L, Boeck L, Rakic J, Scherr A, Tamm M, Stolz D. Vasoactive Intestinal Peptide for Diagnosing Exacerbation in Chronic Obstructive Pulmonary Disease. Respiration 2015; 90:357-68. [PMID: 26447811 DOI: 10.1159/000439228] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 07/29/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Vasoactive intestinal peptide (VIP) is the most abundant neuropeptide in the lung. VIP has been linked to pulmonary arterial hypertension and hypoxia. OBJECTIVES We aimed to assess circulating VIP levels at exacerbation and at stable chronic obstructive pulmonary disease (COPD) and to evaluate the diagnostic performance in a well-characterized cohort of COPD patients. METHODS The nested cohort study included patients with Global Initiative for Chronic Obstructive Lung Disease stage II-IV. Patients were examined at stable state and at acute exacerbation of COPD (AE-COPD), and dedicated serum was collected at both conditions. Serum VIP levels were determined by enzyme-linked immunosorbent assay. Diagnostic accuracy was analyzed by receiver operating characteristic curve and area under the curve (AUC). RESULTS Patients with acute exacerbation (n = 120) and stable COPD (n = 163) had similar characteristics at baseline. Serum VIP levels did not correlate with oxygen saturation at rest (p = 0.722) or at exercise (p = 0.168). Serum VIP levels were significantly higher at AE-COPD (130.25 pg/ml, 95% CI 112.19-151.83) as compared to stable COPD (40.07 pg/ml, 95% CI 37.13-43.96, p < 0.001). The association of increased serum VIP with AE-COPD remained significant after propensity score matching (p < 0.001). Analysis of the Youden index indicated the optimal serum VIP cutoff value as 56.6 pg/ml. The probability of AE-COPD was very low if serum VIP was ≤35 pg/ml (sensitivity >90%) and very high if serum VIP was ≥88 pg/ml (specificity >90%). Serum VIP levels presented a robust performance to diagnose AE-COPD (AUC 0.849, 95% CI 0.779-0.899). CONCLUSIONS Increased serum VIP levels are associated with AE-COPD.
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Affiliation(s)
- Jyotshna Mandal
- Clinic of Pulmonary Medicine and Respiratory Cell Research, University Hospital Basel, Basel, Switzerland
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