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Keskinidou C, Vassiliou AG, Papoutsi E, Jahaj E, Dimopoulou I, Siempos I, Kotanidou A. Dysregulated Coagulation and Fibrinolysis Are Present in Patients Admitted to the Emergency Department with Acute Hypoxemic Respiratory Failure: A Prospective Study. Biomedicines 2024; 12:1081. [PMID: 38791043 PMCID: PMC11118913 DOI: 10.3390/biomedicines12051081] [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: 03/29/2024] [Revised: 04/30/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
Acute hypoxemic respiratory failure (AHRF) is defined as acute and progressive, and patients are at a greater risk of developing acute respiratory distress syndrome (ARDS). Until now, most studies have focused on prognostic and diagnostic biomarkers in ARDS. Since there is evidence supporting a connection between dysregulated coagulant and fibrinolytic pathways in ARDS progression, it is plausible that this dysregulation also exists in AHRF. The aim of this study was to explore whether levels of soluble endothelial protein C receptor (sEPCR) and plasminogen differentiate patients admitted to the emergency department (ED) with AHRF. sEPCR and plasminogen levels were measured in 130 AHRF patients upon ED presentation by ELISA. Our results demonstrated that patients presenting to the ED with AHRF had elevated levels of sEPCR and plasminogen. It seems that dysregulation of coagulation and fibrinolysis occur in the early stages of respiratory failure requiring hospitalisation. Further research is needed to fully comprehend the contribution of sEPCR and plasminogen in AHRF.
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Affiliation(s)
| | - Alice Georgia Vassiliou
- First Department of Critical Care Medicine & Pulmonary Services, School of Medicine, National and Kapodistrian University of Athens, Evangelismos Hospital, 106 76 Athens, Greece; (C.K.); (E.P.); (E.J.); (I.D.); (I.S.)
| | | | | | | | | | - Anastasia Kotanidou
- First Department of Critical Care Medicine & Pulmonary Services, School of Medicine, National and Kapodistrian University of Athens, Evangelismos Hospital, 106 76 Athens, Greece; (C.K.); (E.P.); (E.J.); (I.D.); (I.S.)
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2
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Barrett CD, Moore HB, Moore EE, Chandler J, Sauaia A. Combination of aspirin and rosuvastatin for reduction of venous thromboembolism in severely injured patients: a double-blind, placebo-controlled, pragmatic randomized phase II clinical trial (The STAT Trial). Blood Coagul Fibrinolysis 2023; 34:499-507. [PMID: 37942744 PMCID: PMC10655842 DOI: 10.1097/mbc.0000000000001258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
INTRODUCTION Venous thromboembolism (VTE) remains a significant source of postinjury morbidity and mortality. Beta-hydroxy beta-methylglutaryl-CoA (HMG-CoA) reductase inhibitors (rosuvastatin) significantly reduced pathologic clotting events in healthy populations in a prior trial. Furthermore, acetylsalicylic acid (ASA) has been shown to be noninferior to prophylactic heparinoids for VTE prevention following orthopedic surgery. We hypothesized that a combination of rosuvastatin/ASA, in addition to standard VTE chemoprophylaxis, would reduce VTE in critically ill trauma patients. METHODS This was a double-blind, placebo-controlled, randomized trial, evaluating VTE rates in two groups: ASA + statin (Experimental) and identical placebos (Control). Injured adults, 18-65 years old, admitted to the surgical intensive care unit without contraindications for VTE prophylaxis were eligible. Upon initiation of routine VTE chemoprophylaxis (i.e. heparin/heparin-derivatives), they were randomized to the Experimental or Control group. VTE was the primary outcome. RESULTS Of 112 potentially eligible patients, 33% (n = 37, median new injury severity scale = 27) were successfully randomized, of whom 11% had VTEs. The Experimental group had no VTEs, while the Control group had 6 VTEs (4 PEs and 2 DVTs) in 4 (22%) patients (P = 0.046). The Experimental treatment was not associated with any serious adverse events. Due to the COVID-19 pandemic, the study was interrupted at the second interim analysis at <10% of the planned enrollment, with significance declared at P < 0.012 at that stage. DISCUSSION The combination of ASA and rosuvastatin with standard VTE prophylaxis showed a favorable trend toward reducing VTEs with no serious adverse events. An appropriately powered phase III multicenter trial is needed to further investigate this therapeutic approach. LEVEL OF EVIDENCE Level II, Therapeutic.
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Affiliation(s)
| | | | - Ernest E Moore
- University of Colorado Denver, Department of Surgery
- Shock and Trauma Center at Denver Health, Denver, Colorado
| | | | - Angela Sauaia
- School of Public Health, University of Colorado Denver, Aurora, Colorado, USA
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3
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Ragel EJ, Harris LK, Campbell RA. Acute respiratory distress syndrome: potential of therapeutic interventions effective in treating progression from COVID-19 to treat progression from other illnesses-a systematic review. BMJ Open Respir Res 2023; 10:e001525. [PMID: 37657844 PMCID: PMC10476125 DOI: 10.1136/bmjresp-2022-001525] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 08/04/2023] [Indexed: 09/03/2023] Open
Abstract
BACKGROUND Acute respiratory distress syndrome (ARDS) is the most severe form of lung injury, rendering gaseous exchange insufficient, leading to respiratory failure. Despite over 50 years of research on the treatment of ARDS when developed from illnesses such as sepsis and pneumonia, mortality remains high, and no robust pharmacological treatments exist. The progression of SARS-CoV-2 infections to ARDS during the recent global pandemic led to a surge in the number of clinical trials on the condition. Understandably, this explosion in new research focused on COVID-19 ARDS (CARDS) rather than ARDS when developed from other illnesses, yet differences in pathology between the two conditions mean that optimal treatment for them may be distinct. AIM The aim of the present work is to assess whether new therapeutic interventions that have been developed for the treatment of CARDS may also hold strong potential in the treatment of ARDS when developed from other illnesses. The study objectives are achieved through a systematic review of clinical trials. RESULTS The COVID-19 pandemic led to the identification of various therapeutic interventions for CARDS, some but not all of which are optimal for the management of ARDS. Interventions more suited to CARDS pathology include antithrombotics and biologic agents, such as cytokine inhibitors. Cell-based therapies, on the other hand, show promise in the treatment of both conditions, attributed to their broad mechanisms of action and the overlap in the clinical manifestations of the conditions. A shift towards personalised treatments for both CARDS and ARDS, as reflected through the increasing use of biologics, is also evident. CONCLUSIONS As ongoing CARDS clinical trials progress, their findings are likely to have important implications that alter the management of ARDS in patients that develop the condition from illnesses other than COVID-19 in the future.
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Affiliation(s)
- Emma J Ragel
- Division of Pharmacy and Optometry, University of Manchester, Manchester, UK
| | - Lynda K Harris
- Division of Pharmacy and Optometry, University of Manchester, Manchester, UK
- Maternal and Fetal Health Research Centre, University of Manchester, Manchester, UK
- 3St Mary's Hospital, Manchester University NHS Foundation Trust, Manchester, UK
- Olson Center for Women's Health, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Richard A Campbell
- Division of Pharmacy and Optometry, University of Manchester, Manchester, UK
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4
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Yu Y, Lian Z. Update on transfusion-related acute lung injury: an overview of its pathogenesis and management. Front Immunol 2023; 14:1175387. [PMID: 37251400 PMCID: PMC10213666 DOI: 10.3389/fimmu.2023.1175387] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 04/27/2023] [Indexed: 05/31/2023] Open
Abstract
Transfusion-related acute lung injury (TRALI) is a severe adverse event and a leading cause of transfusion-associated death. Its poor associated prognosis is due, in large part, to the current dearth of effective therapeutic strategies. Hence, an urgent need exists for effective management strategies for the prevention and treatment of associated lung edema. Recently, various preclinical and clinical studies have advanced the current knowledge regarding TRALI pathogenesis. In fact, the application of this knowledge to patient management has successfully decreased TRALI-associated morbidity. This article reviews the most relevant data and recent progress related to TRALI pathogenesis. Based on the existing two-hit theory, a novel three-step pathogenesis model composed of a priming step, pulmonary reaction, and effector phase is postulated to explain the process of TRALI. TRALI pathogenesis stage-specific management strategies based on clinical studies and preclinical models are summarized with an explication of their models of prevention and experimental drugs. The primary aim of this review is to provide useful insights regarding the underlying pathogenesis of TRALI to inform the development of preventive or therapeutic alternatives.
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Affiliation(s)
| | - Zhengqiu Lian
- Department of Blood Transfusion, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
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5
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Yuan X, Jiang P, Qiao C, Su N, Sun P, Lin F, Li C. PLATELET SUPPRESSION BY TIROFIBAN AMELIORATES PULMONARY COAGULATION AND FIBRINOLYSIS ABNORMALITIES IN THE LUNGS OF MOUSE ANTIBODY-MEDIATED TRANSFUSION-RELATED ACUTE LUNG INJURY. Shock 2023; 59:603-611. [PMID: 36640155 DOI: 10.1097/shk.0000000000002080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
ABSTRACT This study aimed to explore the ameliorating effects of the platelet surface glycoprotein IIb/IIIa receptor antagonist tirofiban on coagulation and fibrinolytic abnormalities in a mouse model of antibody-mediated transfusion-associated acute lung injury (ALI). This is important because ALI is a major cause of death attributable to the occurrence of adverse transfusion reactions. No information on a definite diagnosis or pathological mechanism exists, and targeted treatment options are not available. In this study, wild-type male Balb/c mice aged 8 to 10 weeks were randomly divided into the TRALI model, blank control, tirofiban intervention, and isotype control groups. After different treatment exposures, the mice were observed for 2 h before being killed, and lung tissue samples were collected. To explore the intervention effect of tirofiban, the degree of lung injury was quantified by estimating the lung wet/dry ratio, rectal temperature, survival rate, total protein, and myeloperoxidase and via hematoxylin-eosin staining. Furthermore, the coagulation, anticoagulation, and fibrinolysis assays were measured by automatic coagulation instrument and enzyme-linked immunosorbent assay kits, and the fluorescence densities of platelets and fibrin were quantified using immunofluorescence to analyze the effects of tirofiban on the platelet and fibrin interactions of TRALI. Compared with the TRALI model group, the lung injury indices in the tirofiban intervention group decreased significantly, and survival rates also improved. Furthermore, the level of coagulation and fibrinolytic abnormalities were obviously lower than those in the TRALI model group. In conclusion, our findings suggest that tirofiban might interfere with TRALI by inhibiting platelet activation and improving coagulation and fibrinolytic abnormalities.
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Affiliation(s)
- Xin Yuan
- Institute of Blood Transfusion, Chinese Academy of Medical Science & Peking Union Medical College, Chengdu, Sichuan, People's Republic of China
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Wang T, Zhai Y, Xue H, Zhou W, Ding Y, Nie H. Regulation of Epithelial Sodium Transport by SARS-CoV-2 Is Closely Related with Fibrinolytic System-Associated Proteins. Biomolecules 2023; 13:biom13040578. [PMID: 37189326 DOI: 10.3390/biom13040578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/08/2023] [Accepted: 03/21/2023] [Indexed: 05/17/2023] Open
Abstract
Dyspnea and progressive hypoxemia are the main clinical features of patients with coronavirus disease 2019 (COVID-19), which is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Pulmonary pathology shows diffuse alveolar damage with edema, hemorrhage, and the deposition of fibrinogens in the alveolar space, which are consistent with the Berlin Acute Respiratory Distress Syndrome Criteria. The epithelial sodium channel (ENaC) is a key channel protein in alveolar ion transport and the rate-limiting step for pulmonary edema fluid clearance, the dysregulation of which is associated with acute lung injury/acute respiratory distress syndrome. The main protein of the fibrinolysis system, plasmin, can bind to the furin site of γ-ENaC and induce it to an activation state, facilitating pulmonary fluid reabsorption. Intriguingly, the unique feature of SARS-CoV-2 from other β-coronaviruses is that the spike protein of the former has the same furin site (RRAR) with ENaC, suggesting that a potential competition exists between SARS-CoV-2 and ENaC for the cleavage by plasmin. Extensive pulmonary microthrombosis caused by disorders of the coagulation and fibrinolysis system has also been seen in COVID-19 patients. To some extent, high plasmin (ogen) is a common risk factor for SARS-CoV-2 infection since an increased cleavage by plasmin accelerates virus invasion. This review elaborates on the closely related relationship between SARS-CoV-2 and ENaC for fibrinolysis system-related proteins, aiming to clarify the regulation of ENaC under SARS-CoV-2 infection and provide a novel reference for the treatment of COVID-19 from the view of sodium transport regulation in the lung epithelium.
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Affiliation(s)
- Tingyu Wang
- Department of Stem Cells and Regenerative Medicine, College of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Yiman Zhai
- Department of Stem Cells and Regenerative Medicine, College of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Hao Xue
- Department of Stem Cells and Regenerative Medicine, College of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Wei Zhou
- Department of Stem Cells and Regenerative Medicine, College of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Yan Ding
- Department of Stem Cells and Regenerative Medicine, College of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Hongguang Nie
- Department of Stem Cells and Regenerative Medicine, College of Basic Medical Science, China Medical University, Shenyang 110122, China
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Yang Z, Nicholson SE, Cancio TS, Cancio LC, Li Y. Complement as a vital nexus of the pathobiological connectome for acute respiratory distress syndrome: An emerging therapeutic target. Front Immunol 2023; 14:1100461. [PMID: 37006238 PMCID: PMC10064147 DOI: 10.3389/fimmu.2023.1100461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 02/27/2023] [Indexed: 03/19/2023] Open
Abstract
The hallmark of acute respiratory distress syndrome (ARDS) pathobiology is unchecked inflammation-driven diffuse alveolar damage and alveolar-capillary barrier dysfunction. Currently, therapeutic interventions for ARDS remain largely limited to pulmonary-supportive strategies, and there is an unmet demand for pharmacologic therapies targeting the underlying pathology of ARDS in patients suffering from the illness. The complement cascade (ComC) plays an integral role in the regulation of both innate and adaptive immune responses. ComC activation can prime an overzealous cytokine storm and tissue/organ damage. The ARDS and acute lung injury (ALI) have an established relationship with early maladaptive ComC activation. In this review, we have collected evidence from the current studies linking ALI/ARDS with ComC dysregulation, focusing on elucidating the new emerging roles of the extracellular (canonical) and intracellular (non-canonical or complosome), ComC (complementome) in ALI/ARDS pathobiology, and highlighting complementome as a vital nexus of the pathobiological connectome for ALI/ARDS via its crosstalking with other systems of the immunome, DAMPome, PAMPome, coagulome, metabolome, and microbiome. We have also discussed the diagnostic/therapeutic potential and future direction of ALI/ARDS care with the ultimate goal of better defining mechanistic subtypes (endotypes and theratypes) through new methodologies in order to facilitate a more precise and effective complement-targeted therapy for treating these comorbidities. This information leads to support for a therapeutic anti-inflammatory strategy by targeting the ComC, where the arsenal of clinical-stage complement-specific drugs is available, especially for patients with ALI/ARDS due to COVID-19.
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Affiliation(s)
- Zhangsheng Yang
- Combat Casualty Care Research Team (CRT) 3, United States (US) Army Institute of Surgical Research, Joint Base San Antonio (JBSA)-Fort Sam Houston, TX, United States
| | - Susannah E. Nicholson
- Division of Trauma Research, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
| | - Tomas S. Cancio
- Combat Casualty Care Research Team (CRT) 3, United States (US) Army Institute of Surgical Research, Joint Base San Antonio (JBSA)-Fort Sam Houston, TX, United States
| | - Leopoldo C. Cancio
- United States (US) Army Burn Center, United States (US) Army Institute of Surgical Research, Joint Base San Antonio (JBSA)-Fort Sam Houston, TX, United States
| | - Yansong Li
- Division of Trauma Research, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
- The Geneva Foundation, Immunological Damage Control Resuscitation Program, Tacoma, WA, United States
- *Correspondence: Yansong Li,
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8
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Kovács EH, Dembrovszky F, Ocskay K, Szabó L, Hegyi P, Molnar Z, Tánczos K. Effectiveness and safety of fibrinolytic therapy in critically ill patients with COVID-19 with ARDS: protocol for a prospective meta-analysis. BMJ Open 2022; 12:e063855. [PMID: 36167378 PMCID: PMC9515457 DOI: 10.1136/bmjopen-2022-063855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION The use of fibrinolytic therapy has been proposed in severe acute respiratory distress syndrome (ARDS). During the COVID-19 pandemic, anticoagulation has received special attention due to the frequent findings of microthrombi and fibrin deposits in the lungs and other organs. Therefore, the use of fibrinolysis has been regarded as a potential rescue therapy in these patients. In this prospective meta-analysis, we plan to synthesise evidence from ongoing clinical trials and thus assess whether fibrinolytic therapy can improve the ventilation/perfusion ratio in patients with severe COVID-19-caused ARDS as compared with standard of care. METHODS AND ANALYSIS This protocol was registered in PROSPERO. All randomised controlled trials and prospective observational trials that compare fibrinolytic therapy with standard of care in adult patients with COVID-19 and define their primary or secondary outcome as improvement in oxygenation and/or gas exchange, or mortality will be considered eligible. Safety outcomes will include bleeding event rate and requirement for transfusion. Our search on 25 January 2022 identified five eligible ongoing clinical trials. A formal search of MEDLINE (via PubMed), Embase, CENTRAL will be performed every month to identify published results and to search for further trials that meet our eligibility criteria. DISSEMINATION This could be the first qualitative and quantitative synthesis summarising evidence of the efficacy and safety of fibrinolytic therapy in critically ill patients with COVID-19. We plan to publish our results in peer-reviewed journals. PROSPERO REGISTRATION NUMBER CRD42021285281.
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Affiliation(s)
- Emőke Henrietta Kovács
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Selye János Doctoral College for Advanced Studies, Semmelweis University, Budapest, Hungary
- Department of Anesthesiology and Intensive Therapy, Semmelweis University, Budapest, Hungary
| | - Fanni Dembrovszky
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Klementina Ocskay
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - László Szabó
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Péter Hegyi
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
- Division of Pancreatic Diseases, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Zsolt Molnar
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
- Department of Anesthesiology and Intensive Therapy, Semmelweis University, Budapest, Hungary
- Department of Anesthesiology and Intensive Therapy, Poznan University of Medical Sciences, Poznan, Poland
| | - Krisztián Tánczos
- Department of Anesthesiology and Intensive Therapy, Semmelweis University, Budapest, Hungary
- Soproni Erzsébet Teaching Hospital and Rehabilitation Institute, Sopron, Hungary
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9
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COVID-19-Related ARDS: Key Mechanistic Features and Treatments. J Clin Med 2022; 11:jcm11164896. [PMID: 36013135 PMCID: PMC9410336 DOI: 10.3390/jcm11164896] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/16/2022] [Accepted: 08/17/2022] [Indexed: 12/15/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) is a heterogeneous syndrome historically characterized by the presence of severe hypoxemia, high-permeability pulmonary edema manifesting as diffuse alveolar infiltrate on chest radiograph, and reduced compliance of the integrated respiratory system as a result of widespread compressive atelectasis and fluid-filled alveoli. Coronavirus disease 19 (COVID-19)-associated ARDS (C-ARDS) is a novel etiology caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that may present with distinct clinical features as a result of the viral pathobiology unique to SARS-CoV-2. In particular, severe injury to the pulmonary vascular endothelium, accompanied by the presence of diffuse microthrombi in the pulmonary microcirculation, can lead to a clinical presentation in which the severity of impaired gas exchange becomes uncoupled from lung capacity and respiratory mechanics. The purpose of this review is to highlight the key mechanistic features of C-ARDS and to discuss the implications these features have on its treatment. In some patients with C-ARDS, rigid adherence to guidelines derived from clinical trials in the pre-COVID era may not be appropriate.
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10
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Khanna NN, Maindarkar M, Puvvula A, Paul S, Bhagawati M, Ahluwalia P, Ruzsa Z, Sharma A, Munjral S, Kolluri R, Krishnan PR, Singh IM, Laird JR, Fatemi M, Alizad A, Dhanjil SK, Saba L, Balestrieri A, Faa G, Paraskevas KI, Misra DP, Agarwal V, Sharma A, Teji J, Al-Maini M, Nicolaides A, Rathore V, Naidu S, Liblik K, Johri AM, Turk M, Sobel DW, Pareek G, Miner M, Viskovic K, Tsoulfas G, Protogerou AD, Mavrogeni S, Kitas GD, Fouda MM, Kalra MK, Suri JS. Vascular Implications of COVID-19: Role of Radiological Imaging, Artificial Intelligence, and Tissue Characterization: A Special Report. J Cardiovasc Dev Dis 2022; 9:jcdd9080268. [PMID: 36005433 PMCID: PMC9409845 DOI: 10.3390/jcdd9080268] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/30/2022] [Accepted: 08/09/2022] [Indexed: 12/15/2022] Open
Abstract
The SARS-CoV-2 virus has caused a pandemic, infecting nearly 80 million people worldwide, with mortality exceeding six million. The average survival span is just 14 days from the time the symptoms become aggressive. The present study delineates the deep-driven vascular damage in the pulmonary, renal, coronary, and carotid vessels due to SARS-CoV-2. This special report addresses an important gap in the literature in understanding (i) the pathophysiology of vascular damage and the role of medical imaging in the visualization of the damage caused by SARS-CoV-2, and (ii) further understanding the severity of COVID-19 using artificial intelligence (AI)-based tissue characterization (TC). PRISMA was used to select 296 studies for AI-based TC. Radiological imaging techniques such as magnetic resonance imaging (MRI), computed tomography (CT), and ultrasound were selected for imaging of the vasculature infected by COVID-19. Four kinds of hypotheses are presented for showing the vascular damage in radiological images due to COVID-19. Three kinds of AI models, namely, machine learning, deep learning, and transfer learning, are used for TC. Further, the study presents recommendations for improving AI-based architectures for vascular studies. We conclude that the process of vascular damage due to COVID-19 has similarities across vessel types, even though it results in multi-organ dysfunction. Although the mortality rate is ~2% of those infected, the long-term effect of COVID-19 needs monitoring to avoid deaths. AI seems to be penetrating the health care industry at warp speed, and we expect to see an emerging role in patient care, reduce the mortality and morbidity rate.
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Affiliation(s)
- Narendra N. Khanna
- Department of Cardiology, Indraprastha APOLLO Hospitals, New Delhi 110001, India
| | - Mahesh Maindarkar
- Stroke Monitoring and Diagnostic Division, AtheroPoint™, Roseville, CA 95661, USA
- Department of Biomedical Engineering, North Eastern Hill University, Shillong 793022, India
| | - Anudeep Puvvula
- Stroke Monitoring and Diagnostic Division, AtheroPoint™, Roseville, CA 95661, USA
- Annu’s Hospitals for Skin and Diabetes, Nellore 524101, India
| | - Sudip Paul
- Department of Biomedical Engineering, North Eastern Hill University, Shillong 793022, India
| | - Mrinalini Bhagawati
- Department of Biomedical Engineering, North Eastern Hill University, Shillong 793022, India
| | - Puneet Ahluwalia
- Max Institute of Cancer Care, Max Super Specialty Hospital, New Delhi 110017, India
| | - Zoltan Ruzsa
- Invasive Cardiology Division, Faculty of Medicine, University of Szeged, 6720 Szeged, Hungary
| | - Aditya Sharma
- Division of Cardiovascular Medicine, University of Virginia, Charlottesville, VA 22904, USA
| | - Smiksha Munjral
- Stroke Monitoring and Diagnostic Division, AtheroPoint™, Roseville, CA 95661, USA
| | - Raghu Kolluri
- Ohio Health Heart and Vascular, Columbus, OH 43214, USA
| | | | - Inder M. Singh
- Stroke Monitoring and Diagnostic Division, AtheroPoint™, Roseville, CA 95661, USA
| | - John R. Laird
- Heart and Vascular Institute, Adventist Health St. Helena, St Helena, CA 94574, USA
| | - Mostafa Fatemi
- Department of Physiology & Biomedical Engineering, Mayo Clinic College of Medicine and Science, Rochester, MN 55905, USA
| | - Azra Alizad
- Department of Radiology, Mayo Clinic College of Medicine and Science, Rochester, MN 55905, USA
| | - Surinder K. Dhanjil
- Stroke Monitoring and Diagnostic Division, AtheroPoint™, Roseville, CA 95661, USA
| | - Luca Saba
- Department of Radiology, Azienda Ospedaliero Universitaria, 40138 Cagliari, Italy
| | - Antonella Balestrieri
- Cardiovascular Prevention and Research Unit, Department of Pathophysiology, National & Kapodistrian University of Athens, 15772 Athens, Greece
| | - Gavino Faa
- Department of Pathology, Azienda Ospedaliero Universitaria, 09124 Cagliari, Italy
| | | | - Durga Prasanna Misra
- Department of Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Vikas Agarwal
- Department of Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Aman Sharma
- Department of Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Jagjit Teji
- Ann and Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL 60611, USA
| | - Mustafa Al-Maini
- Allergy, Clinical Immunology and Rheumatology Institute, Toronto, ON L4Z 4C4, Canada
| | - Andrew Nicolaides
- Vascular Screening and Diagnostic Centre and University of Nicosia Medical School, 2408 Nicosia, Cyprus
| | - Vijay Rathore
- Nephrology Department, Kaiser Permanente, Sacramento, CA 95119, USA
| | - Subbaram Naidu
- Electrical Engineering Department, University of Minnesota, Duluth, MN 55812, USA
| | - Kiera Liblik
- Department of Medicine, Division of Cardiology, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - Amer M. Johri
- Department of Medicine, Division of Cardiology, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - Monika Turk
- The Hanse-Wissenschaftskolleg Institute for Advanced Study, 27753 Delmenhorst, Germany
| | - David W. Sobel
- Rheumatology Unit, National Kapodistrian University of Athens, 15772 Athens, Greece
| | - Gyan Pareek
- Minimally Invasive Urology Institute, Brown University, Providence, RI 02912, USA
| | - Martin Miner
- Men’s Health Centre, Miriam Hospital Providence, Providence, RI 02906, USA
| | - Klaudija Viskovic
- Department of Radiology and Ultrasound, University Hospital for Infectious Diseases, 10000 Zagreb, Croatia
| | - George Tsoulfas
- Department of Surgery, Aristoteleion University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Athanasios D. Protogerou
- Cardiovascular Prevention and Research Unit, Department of Pathophysiology, National & Kapodistrian University of Athens, 15772 Athens, Greece
| | - Sophie Mavrogeni
- Cardiology Clinic, Onassis Cardiac Surgery Centre, 17674 Athens, Greece
| | - George D. Kitas
- Academic Affairs, Dudley Group NHS Foundation Trust, Dudley DY1 2HQ, UK
- Arthritis Research UK Epidemiology Unit, Manchester University, Manchester M13 9PL, UK
| | - Mostafa M. Fouda
- Department of Electrical and Computer Engineering, Idaho State University, Pocatello, ID 83209, USA
| | - Manudeep K. Kalra
- Department of Radiology, Harvard Medical School, Boston, MA 02115, USA
| | - Jasjit S. Suri
- Stroke Monitoring and Diagnostic Division, AtheroPoint™, Roseville, CA 95661, USA
- Correspondence: ; Tel.: +1-916-749-5628
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11
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Immune Infiltration and N(6)-Methyladenosine ncRNA Isoform Detection in Acute Lung Injury. JOURNAL OF ONCOLOGY 2022; 2022:3922299. [PMID: 35813860 PMCID: PMC9262529 DOI: 10.1155/2022/3922299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/07/2022] [Accepted: 06/09/2022] [Indexed: 12/02/2022]
Abstract
Acute lung injury (ALI) is a severe form of sepsis that is associated with a high rate of morbidity and death in critically ill individuals. The emergence of ALI is the result of several factors at work. Case mortality rates might range from 40% to 70%. Researchers have discovered that epigenetic alterations are important in the pathophysiology of ALI and that using epigenetic inhibitors may help reduce symptoms. In embryonic development, circadian rhythm, the cell cycle, and cancer, methylation of m6A seems to be relevant all along the way. According to recent research, posttranscriptional methylation is a key player in the development of alveolar lymphoma. In this study, we clustered ALI based on m6A-related factors, analyzed different classes of immune cell enrichment and inflammatory cytokine expression, screened clustered differential genes for ALI to construct coexpression networks, screened key ALI genes potentially regulated by m6A modifications, and then typed the disease based on key genes to compare the consistency of different clustering results. Our findings have revealed a hitherto undiscovered prognostic sign and a therapeutic target for ALI therapy in m6A and immune invading cells, respectively.
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12
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Abstract
The emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused a devastating pandemic. Although most people infected with SARS-CoV-2 develop a mild to moderate disease with virus replication restricted mainly to the upper airways, some progress to having a life-threatening pneumonia. In this Review, we explore recent clinical and experimental advances regarding SARS-CoV-2 pathophysiology and discuss potential mechanisms behind SARS-CoV-2-associated acute respiratory distress syndrome (ARDS), specifically focusing on new insights obtained using novel technologies such as single-cell omics, organoid infection models and CRISPR screens. We describe how SARS-CoV-2 may infect the lower respiratory tract and cause alveolar damage as a result of dysfunctional immune responses. We discuss how this may lead to the induction of a 'leaky state' of both the epithelium and the endothelium, promoting inflammation and coagulation, while an influx of immune cells leads to overexuberant inflammatory responses and immunopathology. Finally, we highlight how these findings may aid the development of new therapeutic interventions against COVID-19.
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13
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Magnesium Hydride Ameliorates Endotoxin-Induced Acute Respiratory Distress Syndrome by Inhibiting Inflammation, Oxidative Stress, and Cell Apoptosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5918954. [PMID: 35528515 PMCID: PMC9072031 DOI: 10.1155/2022/5918954] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 03/16/2022] [Accepted: 04/01/2022] [Indexed: 11/17/2022]
Abstract
Acute respiratory distress syndrome (ARDS) causes uncontrolled pulmonary inflammation, resulting in high morbidity and mortality in severe cases. Given the antioxidative effect of molecular hydrogen, some recent studies suggest the potential use of molecular hydrogen as a biomedicine for the treatment of ARDS. In this study, we aimed to explore the protective effects of magnesium hydride (MgH2) on two types of ARDS models and its underlying mechanism in a lipopolysaccharide (LPS)-induced ARDS model of the A549 cell line. The results showed that LPS successfully induced oxidative stress, inflammatory reaction, apoptosis, and barrier breakdown in alveolar epithelial cells (AEC). MgH2 can exert an anti-inflammatory effect by down-regulating the expressions of inflammatory cytokines (IL-1β, IL-6, and TNF-α). In addition, MgH2 decreased oxidative stress by eliminating intracellular ROS, inhibited apoptosis by regulating the expressions of cytochrome c, Bax, and Bcl-2, and suppressed barrier breakdown by up-regulating the expression of ZO-1 and occludin. Mechanistically, the expressions of p-AKT, p-mTOR, p-P65, NLRP3, and cleaved-caspase-1 were decreased after MgH2 treatment, indicating that AKT/mTOR and NF-κB/NLRP3/IL-1β pathways participated in the protective effects of MgH2. Furthermore, the in vivo study also demonstrated that MgH2-treated mice had a better survival rate and weaker pathological damage. All these findings demonstrated that MgH2 could exert an ARDS-protective effect by regulating the AKT/mTOR and NF-κB/NLRP3/IL-1β pathways to suppress LPS-induced inflammatory reaction, oxidative stress injury, apoptosis, and barrier breakdown, which may provide a potential strategy for the prevention and treatment of ARDS.
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14
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Elfsmark L, Ågren L, Akfur C, Jonasson S. Ammonia exposure by intratracheal instillation causes severe and deteriorating lung injury and vascular effects in mice. Inhal Toxicol 2022; 34:145-158. [PMID: 35452355 DOI: 10.1080/08958378.2022.2064566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE Ammonia (NH3) is a corrosive alkaline gas that can cause life-threatening injuries by inhalation. The aim was to establish a disease model for NH3-induced injuries similar to acute lung injury (ALI) described in exposed humans and investigate the progression of lung damage, respiratory dysfunction and evaluate biomarkers for ALI and inflammation over time. METHODS Female BALB/c mice were exposed to an NH3 dose of 91.0 mg/kg·bw using intratracheal instillation and the pathological changes were followed for up to 7 days. RESULTS NH3 instillation resulted in the loss of body weight along with a significant increase in pro-inflammatory mediators in both bronchoalveolar lavage fluid (e.g. IL-1β, IL-6, KC, MMP-9, SP-D) and blood (e.g. IL-6, Fibrinogen, PAI-1, PF4/CXCL4, SP-D), neutrophilic lung inflammation, alveolar damage, increased peripheral airway resistance and methacholine-induced airway hyperresponsiveness compared to controls at 20 h. On day 7 after exposure, deteriorating pathological changes such as increased macrophage lung infiltration, heart weights, lung hemorrhages and coagulation abnormalities (elevated plasma levels of PAI-1, fibrinogen, endothelin and thrombomodulin) were observed but no increase in lung collagen. Some of the analyzed blood biomarkers (e.g. RAGE, IL-1β) were unaffected despite severe ALI and may not be significant for NH3-induced damages. CONCLUSIONS NH3 induces severe acute lung injuries that deteriorate over time and biomarkers in lungs and blood that are similar to those found in humans. Therefore, this model has potential use for developing diagnostic tools for NH3-induced ALI and for finding new therapeutic treatments, since no specific antidote has been identified yet.
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Affiliation(s)
- Linda Elfsmark
- Swedish Defence Research Agency, CBRN Defence and Security, Umeå, Sweden
| | - Lina Ågren
- Swedish Defence Research Agency, CBRN Defence and Security, Umeå, Sweden
| | - Christine Akfur
- Swedish Defence Research Agency, CBRN Defence and Security, Umeå, Sweden
| | - Sofia Jonasson
- Swedish Defence Research Agency, CBRN Defence and Security, Umeå, Sweden
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15
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Domi E, Hoxha M, Kolovani E, Tricarico D, Zappacosta B. The Importance of Nutraceuticals in COVID-19: What's the Role of Resveratrol? MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27082376. [PMID: 35458574 PMCID: PMC9030369 DOI: 10.3390/molecules27082376] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/26/2022] [Accepted: 03/29/2022] [Indexed: 12/21/2022]
Abstract
Since COVID-19 has affected global public health, there has been an urgency to find a solution to limit both the number of infections, and the aggressiveness of the disease once infected. The main characteristic of this infection is represented by a strong alteration of the immune system which, day by day, increases the risk of mortality, and can lead to a multiorgan dysfunction. Because nutritional profile can influence patient’s immunity, we focus our interest on resveratrol, a polyphenolic compound known for its immunomodulating and anti-inflammatory properties. We reviewed all the information concerning the different roles of resveratrol in COVID-19 pathophysiology using PubMed and Scopus as the main databases. Interestingly, we find out that resveratrol may exert its role through different mechanisms. In fact, it has antiviral activity inhibiting virus entrance in cells and viral replication. Resveratrol also improves autophagy and decreases pro-inflammatory agents expression acting as an anti-inflammatory agent. It regulates immune cell response and pro-inflammatory cytokines and prevents the onset of thrombotic events that usually occur in COVID-19 patients. Since resveratrol acts through different mechanisms, the effect could be enhanced, making a totally natural agent particularly effective as an adjuvant in anti COVID-19 therapy.
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Affiliation(s)
- Elisa Domi
- Department for Chemical-Toxicological and Pharmacological Evaluation of Drugs, Faculty of Pharmacy, Catholic University Our Lady of Good Counsel, Rruga Dritan Hoxha, 1000 Tirana, Albania; (E.D.); (M.H.)
| | - Malvina Hoxha
- Department for Chemical-Toxicological and Pharmacological Evaluation of Drugs, Faculty of Pharmacy, Catholic University Our Lady of Good Counsel, Rruga Dritan Hoxha, 1000 Tirana, Albania; (E.D.); (M.H.)
| | - Entela Kolovani
- Infectious Diseases Department, Faculty of Medicine, University of Medicine, Tirana, Rruga e Dibrës, 1005 Tirana, Albania;
| | - Domenico Tricarico
- Section of Pharmacology, Department of Pharmacy-Pharmaceutical Sciences, University of Bari, Via Orabona 4, 70125 Bari, Italy;
| | - Bruno Zappacosta
- Department for Chemical-Toxicological and Pharmacological Evaluation of Drugs, Faculty of Pharmacy, Catholic University Our Lady of Good Counsel, Rruga Dritan Hoxha, 1000 Tirana, Albania; (E.D.); (M.H.)
- Correspondence: ; Tel.: +355-42-273-290
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16
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Al-Tamimi AO, Yusuf AM, Jayakumar MN, Ansari AW, Elhassan M, AbdulKarim F, Kannan M, Halwani R, Ahmad F. SARS-CoV-2 infection induces soluble platelet activation markers and PAI-1 in the early moderate stage of COVID-19. Int J Lab Hematol 2022; 44:712-721. [PMID: 35266284 PMCID: PMC9111479 DOI: 10.1111/ijlh.13829] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 01/29/2022] [Accepted: 03/02/2022] [Indexed: 01/08/2023]
Abstract
Introduction Coagulation dysfunction and thromboembolism emerge as strong comorbidity factors in severe COVID‐19. However, it is unclear when particularly platelet activation markers and coagulation factors dysregulated during the pathogenesis of COVID‐19. Here, we sought to assess the levels of coagulation and platelet activation markers at moderate and severe stages of COVID‐19 to understand the pathogenesis. Methods To understand this, hospitalized COVID‐19 patients with (severe cases that required intensive care) or without pneumonia (moderate cases) were recruited. Phenotypic and molecular characterizations were performed employing basic coagulation tests including prothrombin time (PT), activated partial thromboplastin time (APTT), D‐Dimer, and tissue factor pathway inhibitor (TFPI). The flow cytometry‐based multiplex assays were performed to assess FXI, anti‐thrombin, prothrombin, fibrinogen, FXIII, P‐selectin, sCD40L, plasminogen, tissue plasminogen activator (tPA), plasminogen activator inhibitor‐1 (PAI‐1), and D‐Dimer. Results The investigations revealed induction of plasma P‐selectin and CD40 ligand (sCD40L) in moderate COVID‐19 cases, which were significantly abolished with the progression of COVID‐19 severity. Moreover, a profound reduction in plasma tissue factor pathway inhibitor (TFPI) and FXIII were identified particularly in the severe COVID‐19. Further analysis revealed fibrinogen induction in both moderate and severe patients. Interestingly, an elevated PAI‐1 more prominently in moderate, and tPA particularly in severe COVID‐19 cases were observed. Particularly, the levels of fibrinogen and tPA directly correlated with the severity of the disease. Conclusions In summary, induction of soluble P‐selectin, sCD40L, fibrinogen, and PAI‐1 suggests the activation of platelets and coagulation system at the moderate stage before COVID‐19 patients require intensive care. These findings would help in designing better thromboprophylaxis to limit the COVID‐19 severity.
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Affiliation(s)
- Abaher O Al-Tamimi
- Cardiovascular Research Group, Sharjah Institute for Medical Research, University of Sharjah, Sharjah, UAE
| | - Ayesha M Yusuf
- Cardiovascular Research Group, Sharjah Institute for Medical Research, University of Sharjah, Sharjah, UAE
| | - Manju N Jayakumar
- Cardiovascular Research Group, Sharjah Institute for Medical Research, University of Sharjah, Sharjah, UAE
| | - Abdul W Ansari
- Cardiovascular Research Group, Sharjah Institute for Medical Research, University of Sharjah, Sharjah, UAE.,Dermatology Institute, Translational Research Institute, Academic Health Systems, Hamad Medical Corporation, Doha, Qatar
| | - Mona Elhassan
- Department of Internal Medicine, Rashid Hospital, Dubai, UAE
| | | | - Meganathan Kannan
- Blood and Vascular Biology Research Lab, Department of Life Sciences, Central University of Tamil Nadu, Thiruvarur, India
| | - Rabih Halwani
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah, UAE
| | - Firdos Ahmad
- Cardiovascular Research Group, Sharjah Institute for Medical Research, University of Sharjah, Sharjah, UAE.,Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, UAE
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17
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Kalita B, Saviola AJ, Samuel SP, Mukherjee AK. State-of-the-art review - A review on snake venom-derived antithrombotics: Potential therapeutics for COVID-19-associated thrombosis? Int J Biol Macromol 2021; 192:1040-1057. [PMID: 34656540 PMCID: PMC8514616 DOI: 10.1016/j.ijbiomac.2021.10.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 10/03/2021] [Accepted: 10/04/2021] [Indexed: 12/30/2022]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent responsible for the Coronavirus Disease-2019 (COVID-19) pandemic, has infected over 185 million individuals across 200 countries since December 2019 resulting in 4.0 million deaths. While COVID-19 is primarily associated with respiratory illnesses, an increasing number of clinical reports indicate that severely ill patients often develop thrombotic complications that are associated with increased mortality. As a consequence, treatment strategies that target COVID-associated thrombosis are of utmost clinical importance. An array of pharmacologically active compounds from natural products exhibit effects on blood coagulation pathways, and have generated interest for their potential therapeutic applications towards thrombotic diseases. In particular, a number of snake venom compounds exhibit high specificity on different blood coagulation factors and represent excellent tools that could be utilized to treat thrombosis. The aim of this review is to provide a brief summary of the current understanding of COVID-19 associated thrombosis, and highlight several snake venom compounds that could be utilized as antithrombotic agents to target this disease.
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Affiliation(s)
- Bhargab Kalita
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur 784028, Assam, India; National Centre for Cell Science, Pune 411007, Maharashtra, India
| | - Anthony J Saviola
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Stephen P Samuel
- Queen Elizabeth Hospital King's Lynn NHS Foundation Trust, King's Lynn, Norfolk PE30 4ET, UK
| | - Ashis K Mukherjee
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur 784028, Assam, India; Institute of Advanced Study in Science and Technology, Guwahati 781035, Assam, India.
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18
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Al-Gburi S, Beissert S, Günther C. Molecular mechanisms of vasculopathy and coagulopathy in COVID-19. Biol Chem 2021; 402:1505-1518. [PMID: 34657406 DOI: 10.1515/hsz-2021-0245] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 10/06/2021] [Indexed: 01/08/2023]
Abstract
COVID-19 primarily affects the respiratory system and may lead to severe systemic complications, such as acute respiratory distress syndrome (ARDS), multiple organ failure, cytokine storm, and thromboembolic events. Depending on the immune status of the affected individual early disease control can be reached by a robust type-I-interferon (type-I-IFN) response restricting viral replication. If type-I-IFN upregulation is impaired, patients develop severe COVID-19 that involves profound alveolitis, endothelitis, complement activation, recruitment of immune cells, as well as immunothrombosis. In patients with proper initial disease control there can be a second flare of type-I-IFN release leading to post-COVID manifestation such as chilblain-like lesions that are characterized by thrombosis of small vessels in addition to an inflammatory infiltrate resembling lupus erythematosus (LE). Mechanistically, SARS-CoV-2 invades pneumocytes and endothelial cells by acting on angiotensin-II-converting enzyme 2 (ACE2). It is hypothesized, that viral uptake might downregulate ACE2 bioavailability and enhance angiotensin-II-derived pro-inflammatory and pro-thrombotic state. Since ACE2 is encoded on the X chromosome these conditions might also be influenced by gender-specific regulation. Taken together, SARS-CoV-2 infection affects the vascular compartment leading to variable thrombogenic or inflammatory response depending on the individual immune response status.
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Affiliation(s)
- Suzan Al-Gburi
- University Hospital Carl Gustav Carus, Technical University of Dresden, Fetscherstr. 74, D-01307 Dresden, Germany
| | - Stefan Beissert
- University Hospital Carl Gustav Carus, Technical University of Dresden, Fetscherstr. 74, D-01307 Dresden, Germany
| | - Claudia Günther
- University Hospital Carl Gustav Carus, Technical University of Dresden, Fetscherstr. 74, D-01307 Dresden, Germany
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19
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Qian H, Yang H, Li X, Yang G, Zheng X, He T, Li S, Liu B, Wu Y, Cheng Y, Shen F. Andrographolide sulfonate attenuates alveolar hypercoagulation and fibrinolytic inhibition partly via NF-κB pathway in LPS-induced acute respiratory distress syndrome in mice. Biomed Pharmacother 2021; 143:112209. [PMID: 34649343 DOI: 10.1016/j.biopha.2021.112209] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/11/2021] [Accepted: 09/13/2021] [Indexed: 10/20/2022] Open
Abstract
BACKGROUND Alveolar hypercoagulation and fibrinolytic inhibition are important characteristics during acute respiratory distress syndrome (ARDS), and NF-κB p65 signaling pathway is involved to regulate these pathophysiologies. We hypothesize that targeting NF-κB signal pathway could ameliorate alveolar hypercoagulation and fibrinolyitc inhibition, thus attenuating lung injury in ARDS. PURPOSE We explore the efficacy and the potential mechanism of andrographolide sulfonate (Andro-S) on alveolar hypercoagulation and fibrinolytic inhibition in LPS-induced ARDS in mice. METHODS ARDS was made by lipopolysaccharide (LPS) inhalation in C57BLmice. Andrographolide sulfonate (2.5, 5 and 10 mg/kg) was intraperitoneally given to the mice (once a day for three consecutive days) before LPS administration. NEMO binding domain peptide (NBD), an inhibitor of NF-κB, was used as the positive control and it replaced Andro-S in mice of NBD group. Mice in normal control received saline instead of LPS. Lung tissues and bronchoalveolar lavage fluid (BALF) were collected for analysis of alveolar coagulation, fibrinolytic inhibition as well as of pulmonary inflammatory response after 8 h of LPS inhalation. NF-κB signal pathway in lung tissue was simultaneously determined. RESULTS Andro-S dose-dependently inhibited tissue factor (TF) and plasminogen activator inhibitor (PAI)-1 expressions either in mRNA or in protein in lung tissue of ARDS mice, and it also decreased the concentrations of TF, PAI-1, thrombin-antithrombin complex (TAT), procollagen peptide type Ⅲ (PⅢP) while promoting the production of activated protein C (APC) in BALF. Meanwhile, Andro-S effectively inhibited inflammatory response (interleukin 1β and myeloperoxidase) induced by LPS. LPS stimulation dramatically activated NF-κB signal pathway, indicated by increased expressions of phosphorylation of p65 (p-p65), p-IKKα/β and p-IκBα and the higher p65-DNA binding activity, which were all dose-dependently reversed by Andro-S. Andro-S and NBD presented similar efficacies. CONCLUSIONS Andro-S treatment improves alveolar hypercoagulation and fibrinolytic inhibition and attenuates pulmonary inflammation in LPS-induced ARDS in mice partly through NF-κB pathway inactivation. The drug is expected to be an effective choice for ARDS.
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Affiliation(s)
- Hong Qian
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China; Department of Intensive Care Unit, The Second People's Hospital of Guiyang, 550001, China.
| | - Huilin Yang
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Xiang Li
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Guixia Yang
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Xinghao Zheng
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Tianhui He
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Shuwen Li
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Bo Liu
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Yanqi Wu
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Yumei Cheng
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Feng Shen
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
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20
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Bahraini M, Dorgalaleh A. The Impact of SARS-CoV-2 Infection on Blood Coagulation and Fibrinolytic Pathways: A Review of Prothrombotic Changes Caused by COVID-19. Semin Thromb Hemost 2021; 48:19-30. [PMID: 34695858 DOI: 10.1055/s-0041-1736166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The cardinal pathology of coronavirus disease 2019 (COVID-19) is a primary infection of pulmonary tract cells by severe acute respiratory syndrome coronavirus 2, provoking a local inflammatory response, often accompanied by cytokine storm and acute respiratory distress syndrome, especially in patients with severe disease. Systemic propagation of the disease may associate with thrombotic events, including deep vein thrombosis, pulmonary embolism, and thrombotic microangiopathy, which are important causes of morbidity and mortality in patients with COVID-19. This narrative review describes current knowledge of the pathophysiological mechanisms of COVID-19-associated coagulopathy, with focus on prothrombotic changes in hemostatic mediators, including plasma levels of clotting factors, natural anticoagulants, components of fibrinolytic system, and platelets. It will also highlight the central role of endothelial cells in COVID-19-associated coagulopathy. This narrative review discusses also potential therapeutic strategies for managing thrombotic complications. Awareness by medical experts of contributors to the pathogenesis of thrombotic events in COVID-19 is imperative to develop therapeutics not limited to regular anticoagulants. Instituting cooperation among medical personnel and researchers may lessen this novel virus' impact now, and in the event of recurrence.
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Affiliation(s)
- Mehran Bahraini
- Department of Hematology and Blood Transfusion, School of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Akbar Dorgalaleh
- Department of Hematology and Blood Transfusion, School of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
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21
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Synergistic Effect of Static Compliance and D-dimers to Predict Outcome of Patients with COVID-19-ARDS: A Prospective Multicenter Study. Biomedicines 2021; 9:biomedicines9091228. [PMID: 34572414 PMCID: PMC8467668 DOI: 10.3390/biomedicines9091228] [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: 08/16/2021] [Accepted: 09/09/2021] [Indexed: 12/24/2022] Open
Abstract
The synergic combination of D-dimer (as proxy of thrombotic/vascular injury) and static compliance (as proxy of parenchymal injury) in predicting mortality in COVID-19-ARDS has not been systematically evaluated. The objective is to determine whether the combination of elevated D-dimer and low static compliance can predict mortality in patients with COVID-19-ARDS. A “training sample” (March–June 2020) and a “testing sample” (September 2020–January 2021) of adult patients invasively ventilated for COVID-19-ARDS were collected in nine hospitals. D-dimer and compliance in the first 24 h were recorded. Study outcome was all-cause mortality at 28-days. Cut-offs for D-dimer and compliance were identified by receiver operating characteristic curve analysis. Mutually exclusive groups were selected using classification tree analysis with chi-square automatic interaction detection. Time to death in the resulting groups was estimated with Cox regression adjusted for SOFA, sex, age, PaO2/FiO2 ratio, and sample (training/testing). “Training” and “testing” samples amounted to 347 and 296 patients, respectively. Three groups were identified: D-dimer ≤ 1880 ng/mL (LD); D-dimer > 1880 ng/mL and compliance > 41 mL/cmH2O (LD-HC); D-dimer > 1880 ng/mL and compliance ≤ 41 mL/cmH2O (HD-LC). 28-days mortality progressively increased in the three groups (from 24% to 35% and 57% (training) and from 27% to 39% and 60% (testing), respectively; p < 0.01). Adjusted mortality was significantly higher in HD-LC group compared with LD (HR = 0.479, p < 0.001) and HD-HC (HR = 0.542, p < 0.01); no difference was found between LD and HD-HC. In conclusion, combination of high D-dimer and low static compliance identifies a clinical phenotype with high mortality in COVID-19-ARDS.
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22
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Zhang H, Zhou Y, Qu M, Yu Y, Chen Z, Zhu S, Guo K, Chen W, Miao C. Tissue Factor-Enriched Neutrophil Extracellular Traps Promote Immunothrombosis and Disease Progression in Sepsis-Induced Lung Injury. Front Cell Infect Microbiol 2021; 11:677902. [PMID: 34336711 PMCID: PMC8317465 DOI: 10.3389/fcimb.2021.677902] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 06/21/2021] [Indexed: 12/24/2022] Open
Abstract
Background Patients with sepsis may progress to acute respiratory distress syndrome (ARDS). Evidence of neutrophil extracellular traps (NETs) in sepsis-induced lung injury has been reported. However, the role of circulating NETs in the progression and thrombotic tendency of sepsis-induced lung injury remains elusive. The aim of this study was to investigate the role of tissue factor-enriched NETs in the progression and immunothrombosis of sepsis-induced lung injury. Methods Human blood samples and an animal model of sepsis-induced lung injury were used to detect and evaluate NET formation in ARDS patients. Immunofluorescence imaging, ELISA, Western blotting, and qPCR were performed to evaluate in vitro NET formation and tissue factor (TF) delivery ability. DNase, an anti-TF antibody, and thrombin inhibitors were applied to evaluate the contribution of thrombin to TF-enriched NET formation and the contribution of TF-enriched NETs to immunothrombosis in ARDS patients. Results Significantly increased levels of TF-enriched NETs were observed in ARDS patients and mice. Blockade of NETs in ARDS mice alleviated disease progression, indicating a reduced lung wet/dry ratio and PaO2 level. In vitro data demonstrated that thrombin-activated platelets were responsible for increased NET formation and related TF exposure and subsequent immunothrombosis in ARDS patients. Conclusion The interaction of thrombin-activated platelets with PMNs in ARDS patients results in local NET formation and delivery of active TF. The notion that NETs represent a mechanism by which PMNs release thrombogenic signals during thrombosis may offer novel therapeutic targets.
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Affiliation(s)
- Hao Zhang
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yilu Zhou
- Department of Anesthesiology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Mengdi Qu
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ying Yu
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhaoyuan Chen
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shuainan Zhu
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Kefang Guo
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wankun Chen
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Changhong Miao
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
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Yu Y, Jiang P, Sun P, Su N, Lin F. Pulmonary coagulation and fibrinolysis abnormalities that favor fibrin deposition in the lungs of mouse antibody-mediated transfusion-related acute lung injury. Mol Med Rep 2021; 24:601. [PMID: 34165170 PMCID: PMC8240174 DOI: 10.3892/mmr.2021.12239] [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: 12/04/2020] [Accepted: 04/26/2021] [Indexed: 12/29/2022] Open
Abstract
Transfusion-related acute lung injury (TRALI) is a life-threatening disease caused by blood transfusion. However, its pathogenesis is poorly understood and specific therapies are not available. Experimental and clinical studies have indicated that alveolar fibrin deposition serves a pathological role in acute lung injuries. The present study investigated whether pulmonary fibrin deposition occurs in a TRALI mouse model and the possible mechanisms underlying this deposition. The TRALI model was established by priming male Balb/c mice with lipopolysaccharide (LPS) 18 h prior to injection of an anti-major histocompatibility complex class I (MHC-I) antibody. Untreated mice and mice administered LPS plus isotype antibody served as controls. At 2 h after TRALI induction, blood and lung tissue were collected. Disease characteristics were assessed based on lung tissue histology, inflammatory responses and alterations in the alveolar-capillary barrier. Immunofluorescence staining was used to detect pulmonary fibrin deposition, platelets and fibrin-platelet interactions. Levels of plasminogen activator inhibitor-1 (PAI-1), thrombin-antithrombin complex (TATc), tissue factor pathway inhibitor (TFPI), coagulation factor activity and fibrin degradation product (FDP) in lung tissue homogenates were measured. Severe lung injury, increased inflammatory responses and a damaged alveolar-capillary barrier in the LPS-primed, anti-MHC-I antibody-administered mice indicated that the TRALI model was successfully established. Fibrin deposition, fibrin-platelet interactions and platelets accumulation in the lungs of mouse models were clearly promoted. Additionally, levels of TATc, coagulation factor V (FV), TFPI and PAI-1 were elevated, whereas FDP level was decreased in TRALI mice. In conclusion, both impaired fibrinolysis and enhanced coagulation, which might be induced by boosted FV activity, increased pulmonary platelets accumulation and enhanced fibrin-platelet interactions and contributed to pulmonary fibrin deposition in TRALI mice. The results provided a therapeutic rationale to target abnormalities in either coagulation or fibrinolysis pathways for antibody-mediated TRALI.
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Affiliation(s)
- Yunhong Yu
- Institute of Blood Transfusion, Chinese Academy of Medical Science and Peking Union Medical College, Chengdu, Sichuan 610052, P.R. China
| | - Peng Jiang
- Institute of Blood Transfusion, Chinese Academy of Medical Science and Peking Union Medical College, Chengdu, Sichuan 610052, P.R. China
| | - Pan Sun
- Institute of Blood Transfusion, Chinese Academy of Medical Science and Peking Union Medical College, Chengdu, Sichuan 610052, P.R. China
| | - Na Su
- Institute of Blood Transfusion, Chinese Academy of Medical Science and Peking Union Medical College, Chengdu, Sichuan 610052, P.R. China
| | - Fangzhao Lin
- Institute of Blood Transfusion, Chinese Academy of Medical Science and Peking Union Medical College, Chengdu, Sichuan 610052, P.R. China
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24
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Fang XZ, Wang YX, Xu JQ, He YJ, Peng ZK, Shang Y. Immunothrombosis in Acute Respiratory Dysfunction of COVID-19. Front Immunol 2021; 12:651545. [PMID: 34149692 PMCID: PMC8207198 DOI: 10.3389/fimmu.2021.651545] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 05/12/2021] [Indexed: 01/10/2023] Open
Abstract
COVID-19 is an acute, complex disorder that was caused by a new β-coronavirus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Based on current reports, it was surprising that the characteristics of many patients with COVID-19, who fulfil the Berlin criteria for acute respiratory distress syndrome (ARDS), are not always like those of patients with typical ARDS and can change over time. While the mechanisms of COVID-19–related respiratory dysfunction in COVID-19 have not yet been fully elucidated, pulmonary microvascular thrombosis is speculated to be involved. Considering that thrombosis is highly related to other inflammatory lung diseases, immunothrombosis, a two-way process that links coagulation and inflammation, seems to be involved in the pathophysiology of COVID-19, including respiratory dysfunction. Thus, the current manuscript will describe the proinflammatory milieu in COVID-19, summarize current evidence of thrombosis in COVID-19, and discuss possible interactions between these two.
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Affiliation(s)
- Xiang-Zhi Fang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ya-Xin Wang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ji-Qain Xu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ya-Jun He
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhe-Kang Peng
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - You Shang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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25
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FitzGerald ES, Chen Y, Fitzgerald KA, Jamieson AM. Lung Epithelial Cell Transcriptional Regulation as a Factor in COVID-19-associated Coagulopathies. Am J Respir Cell Mol Biol 2021; 64:687-697. [PMID: 33740387 PMCID: PMC8456886 DOI: 10.1165/rcmb.2020-0453oc] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 03/08/2021] [Indexed: 12/21/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has rapidly become a global pandemic. In addition to the acute pulmonary symptoms of coronavirus disease (COVID-19) (the disease associated with SARS-CoV-2 infection), pulmonary and distal coagulopathies have caused morbidity and mortality in many patients. Currently, the molecular pathogenesis underlying COVID-19-associated coagulopathies are unknown. Identifying the molecular basis of how SARS-CoV-2 drives coagulation is essential to mitigating short- and long-term thrombotic risks of sick and recovered patients with COVID-19. We aimed to perform coagulation-focused transcriptome analysis of in vitro infected primary respiratory epithelial cells, patient-derived bronchial alveolar lavage cells, and circulating immune cells during SARS-CoV-2 infection. Our objective was to identify transcription-mediated signaling networks driving coagulopathies associated with COVID-19. We analyzed recently published experimentally and clinically derived bulk or single-cell RNA sequencing datasets of SARS-CoV-2 infection to identify changes in transcriptional regulation of blood coagulation. We also confirmed that the transcriptional expression of a key coagulation regulator was recapitulated at the protein level. We specifically focused our analysis on lung tissue-expressed genes regulating the extrinsic coagulation cascade and the plasminogen activation system. Analyzing transcriptomic data of in vitro infected normal human bronchial epithelial cells and patient-derived bronchial alveolar lavage samples revealed that SARS-CoV-2 infection induces the extrinsic blood coagulation cascade and suppresses the plasminogen activation system. We also performed in vitro SARS-CoV-2 infection experiments on primary human lung epithelial cells to confirm that transcriptional upregulation of tissue factor, the extrinsic coagulation cascade master regulator, manifested at the protein level. Furthermore, infection of normal human bronchial epithelial cells with influenza A virus did not drive key regulators of blood coagulation in a similar manner as SARS-CoV-2. In addition, peripheral blood mononuclear cells did not differentially express genes regulating the extrinsic coagulation cascade or plasminogen activation system during SARS-CoV-2 infection, suggesting that they are not directly inducing coagulopathy through these pathways. The hyperactivation of the extrinsic blood coagulation cascade and the suppression of the plasminogen activation system in SARS-CoV-2-infected epithelial cells may drive diverse coagulopathies in the lung and distal organ systems. Understanding how hosts drive such transcriptional changes with SARS-CoV-2 infection may enable the design of host-directed therapeutic strategies to treat COVID-19 and other coronaviruses inducing hypercoagulation.
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Affiliation(s)
- Ethan S. FitzGerald
- Division of Biology and Medicine, Department of Molecular Microbiology and Immunology, Brown University, Providence, Rhode Island; and
| | - Yongzhi Chen
- Division of Infectious Disease and Immunology, Department of Medicine, University of Massachusetts Medical School, Worcester
| | - Katherine A. Fitzgerald
- Division of Infectious Disease and Immunology, Department of Medicine, University of Massachusetts Medical School, Worcester
| | - Amanda M. Jamieson
- Division of Biology and Medicine, Department of Molecular Microbiology and Immunology, Brown University, Providence, Rhode Island; and
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26
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Yang H, Qian H, Liu B, Wu Y, Cheng Y, Zheng X, Li X, Yang G, He T, Li S, Shen F. Triptolide dose-dependently improves LPS-induced alveolar hypercoagulation and fibrinolysis inhibition through NF-κB inactivation in ARDS mice. Biomed Pharmacother 2021; 139:111569. [PMID: 34243622 DOI: 10.1016/j.biopha.2021.111569] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/20/2021] [Accepted: 03/31/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Alveolar hypercoagulation and fibrinolysis inhibition were associated with the refractory hypoxemia and the high mortality in patient with acute respiratory distress syndrome (ARDS), and NF-κB pathway was confirmed to contribute to the process. Triptolide (TP) significantly inhibited NF-κB pathway and thus depressed accessive inflammatory response in ARDS. We speculate that TP could improve alveolar hypercoagulation and fibrinolytic inhibition in LPS-induced ARDS via NF-κB inactivation. PURPOSE The aim of this experiment was to explore the efficacy and potential mechanism of TP on alveolar hypercoagulation and fibrinolysis inhibition in LPS-induced ARDS in mice. METHODS 50 μl of LPS (5 mg/ml) was inhalationally given to C57BL/6 mice to set up ARDS model. Male mice were randomly accepted with LPS, LPS + TP (1 μg/kg, 10 μg/kg, 50 μg/kg respectively), or with NEMO Binding domain peptide (NBD), an inhibitor of NF-κB. TP (1 μg/kg, 10 μg/kg, 50 μg/kg) were intraperitoneally injected or 10 μg/50 μl of NBD solution were inhaled 30 min before LPS inhalation. A same volume of normal saline (NS) substituted for TP in mice in control. The endpoint of experiment was at 8 hours after LPS stimulation. Pulmonary tissues were taken for hematoxylin-eosin (HE) staining, wet / dry ratio and for lung injury scores (LIS). Tissue factor (TF) and plasminogen activator inhibitor (PAI)-1 in lung tissue were detected by Western-blotting and by quantitative Real-time PCR(qPCR) respectively. Concentrations of TF, PAI-1, thrombin-antithrombin complex (TAT), procollagen peptide type Ⅲ (PⅢP) and activated protein C (APC) in bronchoalveolar lavage fluid (BALF) were measured by ELISA. NF-κB activation and p65-DNA binding activity in pulmonary tissue were simultaneously determined. RESULTS LPS stimulation resulted in pulmonary edema, neutrophils infiltration, obvious alveolar collapse, interstitial congestion, with high LIS, which were all dose-dependently ameliorated by Triptolide. LPS also dramatically promoted the expressions of TF and PAI-1 either in mRNA or in protein in lung tissue, and significantly stimulated the secretions of TF, PAI-1, TAT, PⅢP but inhibited APC production in BALF, which were all reversed by triptolide treatment in dose-dependent manner. TP dose-dependently inhibited the activation of NF-κB pathway induced by LPS, indicated by the changes of phosphorylations of p65 (p-p65), p-IKKα/β and p-IκBα, and weakened p65-DNA binding activity. TP and NBD had same efficacies either on alveolar hypercoagulation and fibrinolysis inhibition or on NF-κB signalling pathway in ARDS mice. CONCLUSIONS TP dose-dependently improves alveolar hypercoagulation and fibrinolysis inhibition in ARDS mice through inhibiting NF-κB signaling pathway. Our data demonstrate that TP is expected to be an effective selection in ARDS.
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Affiliation(s)
- Huilin Yang
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Hong Qian
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Bo Liu
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Yanqi Wu
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Yumei Cheng
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Xinghao Zheng
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Xiang Li
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Guixia Yang
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Tianhui He
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Shuwen Li
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
| | - Feng Shen
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
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27
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Giordo R, Zinellu A, Eid AH, Pintus G. Therapeutic Potential of Resveratrol in COVID-19-Associated Hemostatic Disorders. Molecules 2021; 26:856. [PMID: 33562030 PMCID: PMC7915700 DOI: 10.3390/molecules26040856] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 01/30/2021] [Accepted: 02/03/2021] [Indexed: 12/14/2022] Open
Abstract
Coagulation disorders, endotheliopathy and inflammation are the most common hallmarks in SARS-CoV-2 infection, largely determining COVID-19's outcome and severity. Dysfunctions of endothelial cells and platelets are tightly linked in contributing to the systemic inflammatory response that appears to be both a cause and a consequence of COVID-19-associated coagulation disorders and thrombotic events. Indeed, elevated levels of circulating inflammatory cytokines are often associated with abnormal coagulation parameters in COVID-19 patients. Although treatments with low molecular weight heparin (LMWH) have shown beneficial effects in decreasing patient mortality with severe COVID-19, additional therapeutic strategies are urgently needed. Utilizing the anti-inflammatory and anti-thrombotic properties of natural compounds may provide alternative therapeutic approaches to prevent or reduce the risk factors associated with pre-existing conditions and comorbidities that can worsen COVID-19 patients' outcomes. In this regard, resveratrol, a natural compound found in several plants and fruits such as grapes, blueberries and cranberries, may represent a promising coadjuvant for the prevention and treatment of COVID-19. By virtue of its anti-thrombotic and anti-inflammatory properties, resveratrol would be expected to lower COVID-19-associated mortality, which is well known to be increased by thrombosis and inflammation. This review analyzes and discusses resveratrol's ability to modulate vascular hemostasis at different levels targeting both primary hemostasis (interfering with platelet activation and aggregation) and secondary hemostasis (modulating factors involved in coagulation cascade).
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Affiliation(s)
- Roberta Giordo
- Department of Medical Laboratory Sciences, College of Health Sciences, and Sharjah Institute for Medical Research, University of Sharjah, University City Rd, Sharjah 27272, United Arab Emirates;
| | - Angelo Zinellu
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy;
| | - Ali Hussein Eid
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, P.O. Box 2713 Doha, Qatar
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, P.O. Box 2713 Doha, Qatar
| | - Gianfranco Pintus
- Department of Medical Laboratory Sciences, College of Health Sciences, and Sharjah Institute for Medical Research, University of Sharjah, University City Rd, Sharjah 27272, United Arab Emirates;
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy;
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28
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Berkman SA, Tapson VF. COVID-19 and Its Implications for Thrombosis and Anticoagulation. Semin Respir Crit Care Med 2021; 42:316-326. [PMID: 33548929 DOI: 10.1055/s-0041-1722992] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Venous thromboembolism, occlusion of dialysis catheters, circuit thrombosis in extracorporeal membrane oxygenation (ECMO) devices, acute limb ischemia, and isolated strokes, all in the face of prophylactic and even therapeutic anticoagulation, are features of novel coronavirus disease 2019 (COVID-19) coagulopathy. It seems well established at this time that a COVID-19 patient deemed sick enough to be hospitalized, should receive at least prophylactic dose anticoagulation. However, should some hospitalized patients have dosage escalation to intermediate dose? Should some be considered for full-dose anticoagulation without a measurable thromboembolic event and how should that anticoagulation be monitored? Should patients receive postdischarge anticoagulation and with what medication and for how long? What thrombotic issues are related to the various medications being used to treat this coagulopathy? Is antiphospholipid antibody part of this syndrome? What is the significance of isolated ischemic stroke and limb ischemia in this disorder and how does this interface with the rest of the clinical and laboratory features of this disorder? The aims of this article are to explore these questions and interpret the available data based on the current evidence.
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Affiliation(s)
- Samuel A Berkman
- Department of Medicine, University of California Los Angeles, Hematology/Oncology, Los Angeles, California
| | - Victor F Tapson
- Department of Medicine, Cedars Sinai Medical Center, Los Angeles, California
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29
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Mauad T, Duarte-Neto AN, da Silva LFF, de Oliveira EP, de Brito JM, do Nascimento ECT, de Almeida Monteiro RA, Ferreira JC, de Carvalho CRR, do Nascimento Saldiva PH, Dolhnikoff M. Tracking the time course of pathological patterns of lung injury in severe COVID-19. Respir Res 2021; 22:32. [PMID: 33514373 PMCID: PMC7844838 DOI: 10.1186/s12931-021-01628-9] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 01/18/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Pulmonary involvement in COVID-19 is characterized pathologically by diffuse alveolar damage (DAD) and thrombosis, leading to the clinical picture of Acute Respiratory Distress Syndrome. The direct action of SARS-CoV-2 in lung cells and the dysregulated immuno-coagulative pathways activated in ARDS influence pulmonary involvement in severe COVID, that might be modulated by disease duration and individual factors. In this study we assessed the proportions of different lung pathology patterns in severe COVID-19 patients along the disease evolution and individual characteristics. METHODS We analysed lung tissue from 41 COVID-19 patients that died in the period March-June 2020 and were submitted to a minimally invasive autopsy. Eight pulmonary regions were sampled. Pulmonary pathologists analysed the H&E stained slides, performing semiquantitative scores on the following parameters: exudative, intermediate or advanced DAD, bronchopneumonia, alveolar haemorrhage, infarct (%), arteriolar (number) or capillary thrombosis (yes/no). Histopathological data were correlated with demographic-clinical variables and periods of symptoms-hospital stay. RESULTS Patient´s age varied from 22 to 88 years (18f/23 m), with hospital admission varying from 0 to 40 days. All patients had different proportions of DAD in their biopsies. Ninety percent of the patients presented pulmonary microthrombosis. The proportion of exudative DAD was higher in the period 0-8 days of hospital admission till death, whereas advanced DAD was higher after 17 days of hospital admission. In the group of patients that died within eight days of hospital admission, elderly patients had less proportion of the exudative pattern and increased proportions of the intermediate patterns. Obese patients had lower proportion of advanced DAD pattern in their biopsies, and lower than patients with overweight. Clustering analysis showed that patterns of vascular lesions (microthrombosis, infarction) clustered together, but not the other patterns. The vascular pattern was not influenced by demographic or clinical parameters, including time of disease progression. CONCLUSION Patients with severe COVID-19 present different proportions of DAD patterns over time, with advanced DAD being more prevalent after 17 days, which seems to be influenced by age and weight. Vascular involvement is present in a large proportion of patients, occurs early in disease progression, and does not change over time.
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Affiliation(s)
- Thais Mauad
- Departamento de Patologia, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455, sala 1155, Cerqueira Cesar, São Paulo, Brazil.
| | - Amaro Nunes Duarte-Neto
- Departamento de Patologia, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455, sala 1155, Cerqueira Cesar, São Paulo, Brazil
| | - Luiz Fernando Ferraz da Silva
- Departamento de Patologia, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455, sala 1155, Cerqueira Cesar, São Paulo, Brazil.,Serviço de Verificação de Óbitos da Capital, Universidade de São Paulo, São Paulo, Brazil
| | - Ellen Pierre de Oliveira
- Departamento de Cardiopneumologia, Instituto Do Coração, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Jose Mara de Brito
- Departamento de Patologia, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455, sala 1155, Cerqueira Cesar, São Paulo, Brazil
| | - Ellen Caroline Toledo do Nascimento
- Departamento de Patologia, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455, sala 1155, Cerqueira Cesar, São Paulo, Brazil
| | - Renata Aparecida de Almeida Monteiro
- Departamento de Patologia, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455, sala 1155, Cerqueira Cesar, São Paulo, Brazil
| | - Juliana Carvalho Ferreira
- Departamento de Cardiopneumologia, Instituto Do Coração, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | | | - Paulo Hilário do Nascimento Saldiva
- Departamento de Patologia, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455, sala 1155, Cerqueira Cesar, São Paulo, Brazil
| | - Marisa Dolhnikoff
- Departamento de Patologia, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455, sala 1155, Cerqueira Cesar, São Paulo, Brazil
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30
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Alfeky M, Abdelmaksoud M, Abdelmaksoud S, Abdelsamee H, Ezzelregal H. Platelets derived microparticles in COVID-19: Correlation to inflammatory and coagulation State. JOURNAL OF APPLIED HEMATOLOGY 2021. [DOI: 10.4103/joah.joah_102_21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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31
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Cheng Y, Liu B, Qian H, Yang H, Wang Y, Wu Y, Shen F. BAY11-7082 inhibits the expression of tissue factor and plasminogen activator inhibitor-1 in type-II alveolar epithelial cells following TNF-α stimulation via the NF-κB pathway. Exp Ther Med 2020; 21:177. [PMID: 33552241 DOI: 10.3892/etm.2020.9608] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 11/17/2020] [Indexed: 12/26/2022] Open
Abstract
Pulmonary inflammation strongly promotes alveolar hypercoagulation and fibrinolytic inhibition. NF-κB signaling regulates the expression of molecules associated with coagulation and fibrinolytic inhibition in type-II alveolar epithelial cells (AECII) stimulated by lipopolysaccharide. However, whether TNF-α-induced alveolar hypercoagulation and fibrinolysis inhibition is also associated with the NF-κB pathway remains to be determined. The aim of the present study was to determine whether BAY11-7082, an inhibitor of the NF-κB pathway, inhibits the expressions of tissue factor (TF) and plasminogen activator inhibitor-1 (PAI-1) in AECⅡ in response to TNF-α. Rat AECII were treated with BAY11-7082 for 24 h and stimulated with TNF-α for 1 h. The expression of TF and PAI-1 were determined using western blotting and reverse transcription-quantitative PCR. The concentrations of TF and PAI-1 in culture supernatant were also measured by ELISA. Moreover, levels of NF-κB p65 (p65), phosphorylated (p)-p65 (p-p65), inhibitor of NF-κB α (IκBα) and p-IκBα were also evaluated. Immunofluorescence was used to detect p65 levels in cell nuclei. TNF-α significantly promoted TF and PAI-1 expression either at the mRNA or protein level in AECII cells. Concentrations of TF and PAI-1 in supernatant also significantly increased upon TNF-α stimulation. Furthermore, TNF-α upregulated the levels of p-IκBα, p65, and p-p65 in the cytoplasm. Immunofluorescence analysis indicated that TNF-α increased p65 translocation from the cytoplasm to the nucleus. However, AECII pre-treated with BAY11-7082 expressed lower levels of TF and PAI-1 following TNF-α treatment. Levels of p-IκBα, p65 and p-p65 in the cytoplasm also decreased, and translocation of p65 from cytoplasm into the nucleus was inhibited by BAY11-7082 pretreatment. These findings suggest that BAY11-7082 improves the hypercoagulation and fibrinolytic inhibition induced by TNF-α in alveolar epithelial cells via the NF-κB signaling pathway. BAY11-7082 might represent a therapeutic option for alveolar hypercoagulation and fibrinolytic inhibition in acute respiratory distress syndrome.
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Affiliation(s)
- Yumei Cheng
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
| | - Bo Liu
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
| | - Hong Qian
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
| | - Huilin Yang
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
| | - Yahui Wang
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
| | - Yanqi Wu
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
| | - Feng Shen
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
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Zhang P, Qu Y, Tu J, Cao W, Hai N, Li S, Qu P, Lv C, Guo R. Applicability of bedside ultrasonography for the diagnosis of deep venous thrombosis in patients with COVID-19 and treatment with low molecular weight heparin. JOURNAL OF CLINICAL ULTRASOUND : JCU 2020; 48:522-526. [PMID: 32757278 PMCID: PMC7436732 DOI: 10.1002/jcu.22898] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/07/2020] [Accepted: 06/30/2020] [Indexed: 06/11/2023]
Abstract
PURPOSE The aim of this study was to evaluate the applicability of bedside ultrasonography for the diagnosis of deep venous thrombosis (DVT) in patients infected with corona virus disease 2019 (COVID-19) with and without treatment with low molecular weight heparin (LMWH). METHODS We retrospectively analyzed the records of deceased and surviving patients in whom ultrasonography detected or not a DVT, and in whom LMWH was or not prescribed. RESULTS The incidence of DVT is higher in the deceased (33/35) than in the surviving (22/46) patients. LMWH was administered in a larger proportion of surviving (18/22) than of deceased (18/33) patients. D-dimer concentrations decreased in patients who received LMWH in both groups. CONCLUSIONS There was a high incidence of DVT in patients who succumbed to COVID-19. Bedside ultrasonography can detect the presence of DVT as early as possible and help assessing the risk of venous thromboembolism, allowing early and reasonable use of LMWH.
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Affiliation(s)
- Pu Zhang
- Department of UltrasoundBeijing Chaoyang Hospital, Capital Medical UniversityBeijingChina
| | - Yali Qu
- Department of UltrasoundWuhan Jinyintan HospitalWuhanChina
| | - Jie Tu
- Department of UltrasoundWuhan Jinyintan HospitalWuhanChina
| | - Wen Cao
- Department of UltrasoundBeijing Chaoyang Hospital, Capital Medical UniversityBeijingChina
| | - Ning Hai
- Department of UltrasoundBeijing Chaoyang Hospital, Capital Medical UniversityBeijingChina
| | - Shuo Li
- Department of UltrasoundBeijing Chaoyang Hospital, Capital Medical UniversityBeijingChina
| | - Peng Qu
- Department of UltrasoundBeijing Chaoyang Hospital, Capital Medical UniversityBeijingChina
| | - Chaoyang Lv
- Department of UltrasoundBeijing Chaoyang Hospital, Capital Medical UniversityBeijingChina
| | - Ruijun Guo
- Department of UltrasoundBeijing Chaoyang Hospital, Capital Medical UniversityBeijingChina
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Shi C, Tingting W, Li JP, Sullivan MA, Wang C, Wang H, Deng B, Zhang Y. Comprehensive Landscape of Heparin Therapy for COVID-19. Carbohydr Polym 2020; 254:117232. [PMID: 33357843 PMCID: PMC7581413 DOI: 10.1016/j.carbpol.2020.117232] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/06/2020] [Accepted: 10/09/2020] [Indexed: 01/08/2023]
Abstract
The pandemic coronavirus disease 2019 (COVID-19), caused by the infection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is rapidly spreading globally. Clinical observations found that systemic symptoms caused by SARS-CoV-2 infection are attenuated when using the anticoagulant agent heparin, indicating that heparin may play other roles in managing COVID-19, in addition to prevention of pulmonary thrombosis. Several biochemical studies show strong binding of heparin and heparin-like molecules to the Spike protein, which resulted in inhibition of viral infection to cells. The clinical observations and in vitro studies argue for a potential multiple-targeting effects of heparin. However, adverse effects of heparin administration and some of the challenges using heparin therapy for SARS-CoV-2 infection need to be considered. This review discusses the pharmacological mechanisms of heparin regarding its anticoagulant, anti-inflammatory and direct antiviral activities, providing current evidence concerning the effectiveness and safety of heparin therapy for this major public health emergency.
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Affiliation(s)
- Chen Shi
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, 430022, China
| | - Wu Tingting
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, 430022, China
| | - Jin-Ping Li
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Mitchell A Sullivan
- Glycation and Diabetes Group, Mater Research Institute-The University of Queensland, Translational Research Institute, Brisbane, QLD, 4072, Australia
| | - Cong Wang
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, 430022, China
| | - Hanxiang Wang
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Bin Deng
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, 430022, China.
| | - Yu Zhang
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, 430022, China.
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Lang AE, Yakhkind A. More Than Meets the Eye: The Similarities Between Coronavirus Disease 2019 and Smoking. Mayo Clin Proc 2020; 95:2282-2283. [PMID: 33012356 PMCID: PMC7418638 DOI: 10.1016/j.mayocp.2020.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 08/06/2020] [Indexed: 12/05/2022]
Affiliation(s)
- Adam Edward Lang
- Department of Primary Care, McDonald Army Health Center, Fort Eustis, VA
| | - Aleksandra Yakhkind
- Department of Neurology, University of Pennsylvania Health System, Philadelphia, PA
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Abstract
An ongoing global pandemic of viral pneumonia (coronavirus disease [COVID-19]), due to the virus SARS-CoV-2, has infected millions of people and remains a threat to many more. Most critically ill patients have respiratory failure and there is an international effort to understand mechanisms and predictors of disease severity. Coagulopathy, characterized by elevations in D-dimer and fibrin(ogen) degradation products (FDPs), is associated with critical illness and mortality in patients with COVID-19. Furthermore, increasing reports of microvascular and macrovascular thrombi suggest that hemostatic imbalances may contribute to the pathophysiology of SARS-CoV-2 infection. We review the laboratory and clinical findings of patients with COVID-19-associated coagulopathy, and prior studies of hemostasis in other viral infections and acute respiratory distress syndrome. We hypothesize that an imbalance between coagulation and inflammation may result in a hypercoagulable state. Although thrombosis initiated by the innate immune system is hypothesized to limit SARS-CoV-2 dissemination, aberrant activation of this system can cause endothelial injury resulting in loss of thromboprotective mechanisms, excess thrombin generation, and dysregulation of fibrinolysis and thrombosis. The role various components including neutrophils, neutrophil extracellular traps, activated platelets, microparticles, clotting factors, inflammatory cytokines, and complement play in this process remains an area of active investigation and ongoing clinical trials target these different pathways in COVID-19.
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Affiliation(s)
- Meaghan E Colling
- Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Yogendra Kanthi
- Department of Internal Medicine, Division of Cardiovascular Medicine, University of Michigan, and Ann Arbor Veterans Administration Healthcare System, Ann Arbor, MI, USA
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Liu B, Cheng Y, Wu Y, Zheng X, Li X, Yang G, He T, Li S, Shen F. Emodin improves alveolar hypercoagulation and inhibits pulmonary inflammation in LPS-provoked ARDS in mice via NF-κB inactivation. Int Immunopharmacol 2020; 88:107020. [PMID: 33182048 DOI: 10.1016/j.intimp.2020.107020] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 08/28/2020] [Accepted: 09/15/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Alveolar hypercoagulation and pulmonary inflammation are important characteristics and they regulate each other in acute respiratory distress syndrome (ARDS). NF-κB pathway has been confirmed to be involved in regulation of this crosstalk. Emodin, a traditional Chinese herb, shows potent inhibitory effect on NF-κB pathway, but whether it is effective in alveolar hypercoagulation and pulmonary inflammation in ARDS remains to be elucidated. PURPOSE The aim of this experiment was to evaluate the efficacy of emodin on LPS-provoked alveolar hypercoagulation and excessive pulmonary inflammation in ARDS, and its potential mechanism. METHODS Mice ARDS was set up through LPS (40 μl, 4 mg/ml) inhalation. Male mice were randomly received with BPS, LPS only, LPS+ emodin (5 mg/kg, 10 mg/kg, 20 mg/kg, respectively) and BAY65-1942, an inhibitor of IKKβ. After 48 h of LPS stimulation, pulmonary pathological injury, expressions of Tissue factor (TF), plasminogen activator inhibitor (PAI)-1, activated protein C (APC), collagen Ⅰ, collagen III, interleukin (IL) 8, IL-1β and tumor necrosis factor (TNF)-α in lung tissues, as well as concentrations of antithrombin III (AT III), procollagen peptide type III (PIIIP), soluble thrombomodulin (sTM), thrombin antithrombin complex (TAT), myeloperoxidase (MPO) and the percentage of inflammatory cells in bronchoalveolar lavage fluid (BALF) were all determined. NF-κB pathway activation as well as NF-κB DNA binding activity in pulmonary tissue were simultaneously checked. RESULTS LPS stimulation resulted in obvious lung injury, excessive inflammatory cells infiltration, which all were dose-dependently ameliorated by emodin. Expressions of TF, PAI-1, collagen Ⅰ and collagen III as well as IL-8, IL-1β and TNF-α in pulmonary tissue were all elevated while APC decreased under LPS provocation, which were all reversed by emodin treatment in dose-dependent manner. LPS promoted the secretions of PIIIP, sTM, TAT and inhibited AT III production in BALF, and resulted in high levels of MPO and the percentage of inflammatory cells in BALF, all of which were significantly and dose-dependently attenuated while AT III production was increased by emodin. Meanwhile, emodin effectively inhibited NF-κB pathway activation and attenuated p65 DNA binding activity induced by LPS inhalation. Emodin and BAY-65-1942 had similar impacts in this experiment. CONCLUSIONS Emodin improves alveolar hypercoagulation and fibrinolytic inhibition and depresses excessive pulmonary inflammation in ARDS mice in dose-dependent manner via NF-κB inactivation. Our data demonstrate that emodin is expected to be an effective drug in alveolar hypercoagulation and pulmonary inflammation in ARDS.
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Affiliation(s)
- Bo Liu
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China
| | - Yumei Cheng
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China
| | - Yanqi Wu
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China
| | | | - Xiang Li
- Guizhou Medical University, Guiyang 550001, China
| | - Guixia Yang
- Guizhou Medical University, Guiyang 550001, China
| | - Tianhui He
- Guizhou Medical University, Guiyang 550001, China
| | - Shuwen Li
- Guizhou Medical University, Guiyang 550001, China
| | - Feng Shen
- Department of Intensive Care Unit, Guizhou Medical University Affiliated Hospital, Guiyang 550001, China.
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Burlacu A, Genovesi S, Popa IV, Crisan-Dabija R. Unpuzzling COVID-19 Prothrombotic State: Are Preexisting Thrombophilic Risk Profiles Responsible for Heterogenous Thrombotic Events? Clin Appl Thromb Hemost 2020; 26:1076029620952884. [PMID: 32842771 PMCID: PMC7453448 DOI: 10.1177/1076029620952884] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Alexandru Burlacu
- Department of Interventional Cardiology-Cardiovascular Diseases Institute, Iasi, Romania.,'Grigore T. Popa' University of Medicine and Pharmacy, Iasi, Romania
| | - Simonetta Genovesi
- Department of Medicine and Surgery, University of Milan Bicocca and Nephrology Unit, San Gerardo Hospital, Monza, Italy
| | - Iolanda Valentina Popa
- 'Grigore T. Popa' University of Medicine and Pharmacy, Iasi, Romania.,Institute of Gastroenterology and Hepatology, Iasi, Romania
| | - Radu Crisan-Dabija
- 'Grigore T. Popa' University of Medicine and Pharmacy, Iasi, Romania.,Pulmonology Department, Clinic of Pulmonary Diseases, Iasi, Romania
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Mackman N, Antoniak S, Wolberg AS, Kasthuri R, Key NS. Coagulation Abnormalities and Thrombosis in Patients Infected With SARS-CoV-2 and Other Pandemic Viruses. Arterioscler Thromb Vasc Biol 2020; 40:2033-2044. [PMID: 32657623 PMCID: PMC7447001 DOI: 10.1161/atvbaha.120.314514] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 06/29/2020] [Indexed: 02/07/2023]
Abstract
The world is amid a pandemic caused by severe acute respiratory syndrome-coronavirus 2. Severe acute respiratory syndrome-coronavirus causes serious respiratory tract infections that can lead to viral pneumonia, acute respiratory distress syndrome, and death. Some patients with coronavirus disease 2019 (COVID-19) have an activated coagulation system characterized by elevated plasma levels of d-dimer-a biomarker of fibrin degradation. Importantly, high levels of D-dimer on hospital admission are associated with increased risk of mortality. Venous thromboembolism is more common than arterial thromboembolism in hospitalized COVID-19 patients. Pulmonary thrombosis and microvascular thrombosis are observed in autopsy studies, and this may contribute to the severe hypoxia observed in COVID-19 patients. It is likely that multiple systems contribute to thrombosis in COVID-19 patients, such as activation of coagulation, platelet activation, hypofibrinolysis, endothelial cell dysfunction, inflammation, neutrophil extracellular traps, and complement. Targeting these different pathways may reduce thrombosis and improve lung function in COVID-19 patients.
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Affiliation(s)
- Nigel Mackman
- From the Department of Medicine, UNC Blood Research Center (N.M., S.A., A.S.W., R.K., N.S.K.), University of North Carolina at Chapel Hill
- Division of Hematology, Department of Medicine (N.M., R.K., N.S.K.), University of North Carolina at Chapel Hill
| | - Silvio Antoniak
- From the Department of Medicine, UNC Blood Research Center (N.M., S.A., A.S.W., R.K., N.S.K.), University of North Carolina at Chapel Hill
- Department of Pathology and Laboratory Medicine (S.A., A.S.W.), University of North Carolina at Chapel Hill
| | - Alisa S. Wolberg
- From the Department of Medicine, UNC Blood Research Center (N.M., S.A., A.S.W., R.K., N.S.K.), University of North Carolina at Chapel Hill
- Department of Pathology and Laboratory Medicine (S.A., A.S.W.), University of North Carolina at Chapel Hill
| | - Raj Kasthuri
- From the Department of Medicine, UNC Blood Research Center (N.M., S.A., A.S.W., R.K., N.S.K.), University of North Carolina at Chapel Hill
- Division of Hematology, Department of Medicine (N.M., R.K., N.S.K.), University of North Carolina at Chapel Hill
| | - Nigel S. Key
- From the Department of Medicine, UNC Blood Research Center (N.M., S.A., A.S.W., R.K., N.S.K.), University of North Carolina at Chapel Hill
- Division of Hematology, Department of Medicine (N.M., R.K., N.S.K.), University of North Carolina at Chapel Hill
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Grasselli G, Tonetti T, Protti A, Langer T, Girardis M, Bellani G, Laffey J, Carrafiello G, Carsana L, Rizzuto C, Zanella A, Scaravilli V, Pizzilli G, Grieco DL, Di Meglio L, de Pascale G, Lanza E, Monteduro F, Zompatori M, Filippini C, Locatelli F, Cecconi M, Fumagalli R, Nava S, Vincent JL, Antonelli M, Slutsky AS, Pesenti A, Ranieri VM. Pathophysiology of COVID-19-associated acute respiratory distress syndrome: a multicentre prospective observational study. THE LANCET RESPIRATORY MEDICINE 2020; 8:1201-1208. [PMID: 32861276 PMCID: PMC7834127 DOI: 10.1016/s2213-2600(20)30370-2] [Citation(s) in RCA: 441] [Impact Index Per Article: 110.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/23/2020] [Accepted: 08/07/2020] [Indexed: 02/07/2023]
Abstract
Background Patients with COVID-19 can develop acute respiratory distress syndrome (ARDS), which is associated with high mortality. The aim of this study was to examine the functional and morphological features of COVID-19-associated ARDS and to compare these with the characteristics of ARDS unrelated to COVID-19. Methods This prospective observational study was done at seven hospitals in Italy. We enrolled consecutive, mechanically ventilated patients with laboratory-confirmed COVID-19 and who met Berlin criteria for ARDS, who were admitted to the intensive care unit (ICU) between March 9 and March 22, 2020. All patients were sedated, paralysed, and ventilated in volume-control mode with standard ICU ventilators. Static respiratory system compliance, the ratio of partial pressure of arterial oxygen to fractional concentration of oxygen in inspired air, ventilatory ratio (a surrogate of dead space), and D-dimer concentrations were measured within 24 h of ICU admission. Lung CT scans and CT angiograms were done when clinically indicated. A dataset for ARDS unrelated to COVID-19 was created from previous ARDS studies. Survival to day 28 was assessed. Findings Between March 9 and March 22, 2020, 301 patients with COVID-19 met the Berlin criteria for ARDS at participating hospitals. Median static compliance was 41 mL/cm H2O (33–52), which was 28% higher than in the cohort of patients with ARDS unrelated to COVID-19 (32 mL/cm H2O [25–43]; p<0·0001). 17 (6%) of 297 patients with COVID-19-associated ARDS had compliances greater than the 95th percentile of the classical ARDS cohort. Total lung weight did not differ between the two cohorts. CT pulmonary angiograms (obtained in 23 [8%] patients with COVID-19-related ARDS) showed that 15 (94%) of 16 patients with D-dimer concentrations greater than the median had bilateral areas of hypoperfusion, consistent with thromboembolic disease. Patients with D-dimer concentrations equal to or less than the median had ventilatory ratios lower than those of patients with D-dimer concentrations greater than the median (1·66 [1·32–1·95] vs 1·90 [1·50–2·33]; p=0·0001). Patients with static compliance equal to or less than the median and D-dimer concentrations greater than the median had markedly increased 28-day mortality compared with other patient subgroups (40 [56%] of 71 with high D-dimers and low compliance vs 18 [27%] of 67 with low D-dimers and high compliance, 13 [22%] of 60 with low D-dimers and low compliance, and 22 [35%] of 63 with high D-dimers and high compliance, all p=0·0001). Interpretation Patients with COVID-19-associated ARDS have a form of injury that, in many aspects, is similar to that of those with ARDS unrelated to COVID-19. Notably, patients with COVID-19-related ARDS who have a reduction in respiratory system compliance together with increased D-dimer concentrations have high mortality rates. Funding None.
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Affiliation(s)
- Giacomo Grasselli
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy; Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Tommaso Tonetti
- Dipartimento di Scienze Mediche e Chirurgiche, Anesthesia and Intensive Care Medicine, Policlinico di Sant'Orsola, Alma Mater Studiorum-Università di Bologna, Bologna, Italy
| | - Alessandro Protti
- Humanitas Clinical and Research Center-IRCCS, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Thomas Langer
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy; Dipartimento di Anestesia e Rianimazione, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Massimo Girardis
- Department of Anesthesia and Intensive Care, University Hospital of Modena, Modena, Italy
| | - Giacomo Bellani
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy; Department of Anesthesia and Intensive Care Medicine, ASST Monza-Ospedale San Gerardo, Monza, Italy
| | - John Laffey
- Regenerative Medicine Institute at CÚRAM Centre for Research in Medical Devices, National University of Ireland Galway, Galway, Ireland; Anaesthesia and Intensive Care Medicine, School of Medicine, National University of Ireland Galway, Galway, Ireland
| | - Gianpaolo Carrafiello
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy; Dipartimento di Scienze della Salute, University of Milan, Milan, Italy
| | - Luca Carsana
- Department of Anatomy and Histopathology, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, Milan, Italy
| | - Chiara Rizzuto
- Department of Anesthesia and Intensive Care Unit, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, Polo Universitario, University of Milan, Milan, Italy
| | - Alberto Zanella
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy; Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Vittorio Scaravilli
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Giacinto Pizzilli
- Dipartimento di Scienze Mediche e Chirurgiche, Anesthesia and Intensive Care Medicine, Policlinico di Sant'Orsola, Alma Mater Studiorum-Università di Bologna, Bologna, Italy
| | - Domenico Luca Grieco
- Department of Anesthesiology and Intensive Care Medicine, Fondazione Policlinico Universitario A Gemelli IRCCS, Rome, Italy
| | - Letizia Di Meglio
- Dipartimento di Scienze della Salute, University of Milan, Milan, Italy
| | - Gennaro de Pascale
- Department of Anesthesiology and Intensive Care Medicine, Fondazione Policlinico Universitario A Gemelli IRCCS, Rome, Italy
| | - Ezio Lanza
- Humanitas Clinical and Research Center-IRCCS, Milan, Italy
| | - Francesco Monteduro
- Dipartimento di Radiologia, Policlinico di Sant'Orsola, Alma Mater Studiorum-Università di Bologna, Bologna, Italy
| | - Maurizio Zompatori
- Dipartimento di Radiologia, Policlinico di Sant'Orsola, Alma Mater Studiorum-Università di Bologna, Bologna, Italy
| | - Claudia Filippini
- Dipartimento di Scienze Chirurgiche, Università di Torino, Torino, Italy
| | - Franco Locatelli
- Department of Pediatric Hemato-Oncology and Cell and Gene Therapy, IRCCS Bambino Gesù Children Hospital, Rome, Italy
| | - Maurizio Cecconi
- Humanitas Clinical and Research Center-IRCCS, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Roberto Fumagalli
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy; Dipartimento di Anestesia e Rianimazione, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Stefano Nava
- Department of Clinical, Integrated and Experimental Medicine, Respiratory and Critical Care Unit, S Orsola-Malpighi Hospital, Alma Mater University, Bologna, Italy
| | - Jean-Louis Vincent
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Massimo Antonelli
- Department of Anesthesiology and Intensive Care Medicine, Fondazione Policlinico Universitario A Gemelli IRCCS, Rome, Italy; Università Cattolica del Sacro Cuore, Rome, Italy
| | - Arthur S Slutsky
- Keenan Research Centre for Biomedical Science, St Michael's Hospital, Toronto, ON, Canada
| | - Antonio Pesenti
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy; Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - V Marco Ranieri
- Dipartimento di Scienze Mediche e Chirurgiche, Anesthesia and Intensive Care Medicine, Policlinico di Sant'Orsola, Alma Mater Studiorum-Università di Bologna, Bologna, Italy.
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FitzGerald ES, Jamieson AM. Unique transcriptional changes in coagulation cascade genes in SARS-CoV-2-infected lung epithelial cells: A potential factor in COVID-19 coagulopathies. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2020:2020.07.06.182972. [PMID: 32676594 PMCID: PMC7359516 DOI: 10.1101/2020.07.06.182972] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has rapidly become a global pandemic. In addition to the acute pulmonary symptoms of COVID-19 (the disease associated with SARS-CoV-2 infection), pulmonary and distal coagulopathies have caused morbidity and mortality in many patients. Currently, the molecular pathogenesis underlying COVID-19 associated coagulopathies are unknown. While there are many theories for the cause of this pathology, including hyper inflammation and excess tissue damage, the cellular and molecular underpinnings are not yet clear. By analyzing transcriptomic data sets from experimental and clinical research teams, we determined that changes in the gene expression of genes important in the extrinsic coagulation cascade in the lung epithelium may be important triggers for COVID-19 coagulopathy. This regulation of the extrinsic blood coagulation cascade is not seen with influenza A virus (IAV)-infected NHBEs suggesting that the lung epithelial derived coagulopathies are specific to SARS-Cov-2 infection. This study is the first to identify potential lung epithelial cell derived factors contributing to COVID-19 associated coagulopathy.
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Affiliation(s)
- Ethan S. FitzGerald
- Division of Biology and Medicine, Department of Molecular Microbiology and Immunology, Brown University, Providence, Rhode Island, United States
| | - Amanda M. Jamieson
- Division of Biology and Medicine, Department of Molecular Microbiology and Immunology, Brown University, Providence, Rhode Island, United States
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Whyte CS, Morrow GB, Mitchell JL, Chowdary P, Mutch NJ. Fibrinolytic abnormalities in acute respiratory distress syndrome (ARDS) and versatility of thrombolytic drugs to treat COVID-19. J Thromb Haemost 2020; 18:1548-1555. [PMID: 32329246 PMCID: PMC7264738 DOI: 10.1111/jth.14872] [Citation(s) in RCA: 198] [Impact Index Per Article: 49.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 04/20/2020] [Accepted: 04/21/2020] [Indexed: 01/10/2023]
Abstract
The global pandemic of coronavirus disease 2019 (COVID-19) is associated with the development of acute respiratory distress syndrome (ARDS), which requires ventilation in critically ill patients. The pathophysiology of ARDS results from acute inflammation within the alveolar space and prevention of normal gas exchange. The increase in proinflammatory cytokines within the lung leads to recruitment of leukocytes, further propagating the local inflammatory response. A consistent finding in ARDS is the deposition of fibrin in the air spaces and lung parenchyma. COVID-19 patients show elevated D-dimers and fibrinogen. Fibrin deposits are found in the lungs of patients due to the dysregulation of the coagulation and fibrinolytic systems. Tissue factor (TF) is exposed on damaged alveolar endothelial cells and on the surface of leukocytes promoting fibrin deposition, while significantly elevated levels of plasminogen activator inhibitor 1 (PAI-1) from lung epithelium and endothelial cells create a hypofibrinolytic state. Prophylaxis treatment of COVID-19 patients with low molecular weight heparin (LMWH) is important to limit coagulopathy. However, to degrade pre-existing fibrin in the lung it is essential to promote local fibrinolysis. In this review, we discuss the repurposing of fibrinolytic drugs, namely tissue-type plasminogen activator (tPA), to treat COVID-19 associated ARDS. tPA is an approved intravenous thrombolytic treatment, and the nebulizer form has been shown to be effective in plastic bronchitis and is currently in Phase II clinical trial. Nebulizer plasminogen activators may provide a targeted approach in COVID-19 patients to degrade fibrin and improving oxygenation in critically ill patients.
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Affiliation(s)
- Claire S Whyte
- Aberdeen Cardiovascular & Diabetes Centre, School of Medicine, Medical Sciences and Nutrition, Aberdeen, UK
| | - Gael B Morrow
- Aberdeen Cardiovascular & Diabetes Centre, School of Medicine, Medical Sciences and Nutrition, Aberdeen, UK
- Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Joanne L Mitchell
- Institute of Cardiovascular and Metabolic Sciences, School of Biological Sciences, University of Reading, Reading, UK
| | - Pratima Chowdary
- Katharine Dormandy Haemophilia and Thrombosis Centre Royal Free Hospital, London, UK
| | - Nicola J Mutch
- Aberdeen Cardiovascular & Diabetes Centre, School of Medicine, Medical Sciences and Nutrition, Aberdeen, UK
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Negrin LL, Dedeyan M, Plesser S, Hajdu S. Impact of Polytrauma and Acute Respiratory Distress Syndrome on Markers of Fibrinolysis: A Prospective Pilot Study. Front Med (Lausanne) 2020; 7:194. [PMID: 32582720 PMCID: PMC7280477 DOI: 10.3389/fmed.2020.00194] [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: 02/12/2020] [Accepted: 04/23/2020] [Indexed: 11/13/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS), which is associated with major morbidity and high mortality, is commonly developed by polytraumatized patients. Its pathogenesis is complex, and its development is difficult to anticipate, as candidate biomarkers for the prediction of ARDS were found not to be reliable for clinical use. In this prospective study, we assessed the serum antigen levels of tissue plasminogen activator (tPA) and plasminogen activator inhibitor type-1 (PAI-1) of 28 survivors of blunt polytrauma (age ≥18 years; injury severity score ≥16) at admission and on days 1, 3, 5, 7, 10, 14, and 21 of hospitalization. Our results show that these patients presented high mean tPA and PAI-1 antigen levels at admission; despite their decline, these parameters remained elevated for 3 weeks. Over this period, the mean tPA antigen level was higher in polytrauma victims suffering from ARDS than in those without ARDS, whereas the mean PAI-1 level was higher in polytrauma victims sustaining pneumonia than in those without pneumonia. Moreover, in each individual developing ARDS, the polytrauma-related elevated tPA antigen level either continued to rise after admission or suffered a second increase up to the onset of ARDS, declining immediately thereafter. Therefore, our findings support the assessment of serum tPA antigen levels after the initial treatment of polytraumatized patients, as this parameter shows potential as a biomarker for the development of ARDS and for the consequent identification of high-risk individuals.
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Affiliation(s)
- Lukas L Negrin
- Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
| | - Michel Dedeyan
- Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
| | - Stefan Plesser
- Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
| | - Stefan Hajdu
- Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
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Coronavirus Disease 2019 and Smoking: How and Why We Implemented a Tobacco Treatment Campaign. Chest 2020; 158:1770-1776. [PMID: 32561438 PMCID: PMC7297684 DOI: 10.1016/j.chest.2020.06.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/23/2020] [Accepted: 06/04/2020] [Indexed: 12/28/2022] Open
Abstract
Smoking is associated with one of five deaths in the United States. Multimodality tobacco treatment increases rates of successful cessation by at least 20%. The coronavirus disease 2019 pandemic has put a halt to many inpatient and outpatient medical visits that have been deemed nonessential, including tobacco treatment. The transition to telehealth has been wrought with challenges. Although data on the association between coronavirus disease 2019 and tobacco products are mixed, the overall health consequences of tobacco point towards increased risk of morbidity and death that is associated with the virus. This leaves smoking as one of the few readily modifiable risk factors in an environment understandably not set up to prioritize cessation. A military health facility on Fort Eustis in Virginia runs a successful tobacco treatment program and adapted it to pandemic times. This article describes the process and lessons learned from this initiative. The model is applicable and scalable to government and civilian health centers as health care adapts to a new normal.
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Wu Y, Wang Y, Liu B, Cheng Y, Qian H, Yang H, Li X, Yang G, Zheng X, Shen F. SN50 attenuates alveolar hypercoagulation and fibrinolysis inhibition in acute respiratory distress syndrome mice through inhibiting NF-κB p65 translocation. Respir Res 2020; 21:130. [PMID: 32460750 PMCID: PMC7251840 DOI: 10.1186/s12931-020-01372-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 04/23/2020] [Indexed: 02/06/2023] Open
Abstract
Background It has been confirmed that NF-κB p65 signaling pathway is involved in the regulation of alveolar hypercoagulation and fibrinolysis inhibition in acute respiratory distress syndrome (ARDS). Whether SN50, a NF-κB cell permeable inhibitor, could attenuate alveolar hypercoagulation and fibrinolysis inhibition in ARDS remains to be elucidated. Purpose We explored the efficacy and potential mechanism of SN50 on alveolar hypercoagulation and fibrinolysis inhibition in ARDS in mice. Materials and methods Mouse ARDS was made by 50 μl of lipopolysaccharide (LPS) (4 mg/ml) inhalation. Male BALB/c mice were intraperitoneally injected with different does of SN50 1 h before LPS inhalation. Lung tissues were collected for hematoxylin-eosin (HE) staining, wet/dry ratio. Pulmonary expressions of tissue factor (TF), plasminogen activator inhibitor-1 (PAI-1), collagen III, as well as phosphorylated p65 (p-p65), p65 in nucleus (p’-p65), IκBα and IKKα/β were measured. Bronchoalveolar lavage fluid (BALF) was gathered to test the concentrations of TF, PAI-1, activated protein C (APC) and thrombinantithrombin complex (TAT). DNA binding activity of NF-κB p65 was also determined. Results After LPS stimulation, pulmonary edema and exudation and alveolar collapse occured. LPS also stimulated higher expressions of TF and PAI-1 in lung tissues, and higher secretions of TF, PAI-1, TAT and low level of APC in BALF. Pulmonary collagen III expression was obviously enhanced after LPS inhalation. At same time, NF-κB signaling pathway was activated with LPS injury, shown by higher expressions of p-p65, p’-p65, p-IKKα/β, p-Iκα in pulmonary tissue and higher level p65 DNA binding activity. SN50 dose-dependently inhibited TF, PAI-1 and collagen IIIexpressions, and decreased TF, PAI-1, TAT but increased APC in BALF. SN50 treatment attenuated pulmonary edema, exudation and reduced lung tissue damage as well. SN50 application significantly reduced p’-p65 expression and weakened p65 DNA binding activity, but expressions of p-p65, p-IKKα/β, p-Iκα in cytoplasm of pulmonary tissue were not affected. Conclusions SN 50 attenuates alveolar hypercoagulation and fibrinolysis inhibition in ARDS via inhibition of NF-κB p65 translocation. Our data demonstrates that NF-κB p65 pathway is a viable new therapeutic target for ARDS treatment.
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Affiliation(s)
- Yanqi Wu
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, 550001, China
| | - Yahui Wang
- The People's Hospital of Weining County, Bijie, 553100, Guizhou Province, China
| | - Bo Liu
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, 550001, China
| | - Yumei Cheng
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, 550001, China
| | - Hong Qian
- Guizhou Medical University, Guiyang, 550001, China
| | - Huilin Yang
- Guizhou Medical University, Guiyang, 550001, China
| | - Xiang Li
- Guizhou Medical University, Guiyang, 550001, China
| | - Guixia Yang
- Guizhou Medical University, Guiyang, 550001, China
| | | | - Feng Shen
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, 550001, China.
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Berkman SA, Tapson VF. Methodological Issues and Controversies in COVID-19 Coagulopathy: A Tale of Two Storms. Clin Appl Thromb Hemost 2020; 26:1076029620945398. [PMID: 32883088 PMCID: PMC7488609 DOI: 10.1177/1076029620945398] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Venous thromboembolism, occlusion of dialysis catheters, circuit thrombosis in ECMO devices, all in the face of prophylactic and sometimes even therapeutic anti-coagulation, are frequent features of COVID-19 coagulopathy. The trials available to guide clinicians are methodologically limited. There are several unresolved controversies including 1) Should all hospitalized patients with COVID-19 receive prophylactic anti-coagulation? 2) Which patients should have their dosage escalated to intermediate dose? 3) Which patients should be considered for full-dose anti-coagulation even without a measurable thromboembolic event and how should that anti-coagulation be monitored? 4) Should patients receive post-discharge anti-coagulation? 5) What thrombotic issues are related to the various medications being used to treat this coagulopathy? 6) Is anti-phospholipid anti-body part of this syndrome? 7) How do the different treatments for this disease impact the coagulation issues? The aims of this article are to explore these questions and interpret the available data based on the current evidence.
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Liu B, Wang Y, Wu Y, Cheng Y, Qian H, Yang H, Shen F. IKKβ regulates the expression of coagulation and fibrinolysis factors through the NF-κB canonical pathway in LPS-stimulated alveolar epithelial cells type II. Exp Ther Med 2019; 18:2859-2866. [PMID: 31572531 PMCID: PMC6755483 DOI: 10.3892/etm.2019.7928] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 07/12/2019] [Indexed: 01/11/2023] Open
Abstract
Aim: Hypercoagulation and fibrinolysis inhibition in the alveolar cavity are important characteristics in acute respiratory distress syndrome (ARDS). Alveolar epithelial cells type II (AEC II) have been confirmed to have significant role in regulating alveolar hypercoagulation and fibrinolysis inhibition, but the mechanism is unknown. Nuclear factor-κB (NF-κB) signaling pathway has been demonstrated to participate in the pathogenesis of these two abnormalities in ARDS. The purpose of the present study is to explore whether controlling the upstream crucial factor IκB kinase (IKK)β could regulate coagulation and fibrinolysis factors in LPS-stimulated AEC II. Materials and methods: An IKKβ gene regulation model (IKKβ+/+ and IKKβ−/−) was prepared using lentiviral vector transfection. The models with wild type cells were all stimulated by lipopolysaccharide (LPS) or saline for 24 h. Expression of the related proteins were determined by western-blotting, ELISA and revere transcription-PCR respectively. Tissue factor (TF) procoagulant activity and nuclear p65 protein level were also detected. Results: IKKβ increased in IKKβ+/+ cells but decreased in IKKβ−/− cells. LPS stimulation promoted the expression of p-IκBα, p65, p-p65 and p-IKKβ as well as TF and plasminogen activator inhibitor (PAI)-1, at the mRNA or protein level, and this was significantly enhanced by IKKβ upregulation but weakened by IKKβ downregulation. TF procoagulant activity presented the same changes as the molecules above. ELISAs showed additional increases in the concentrations of as thrombin antithrombin, procollagen III propeptide, thrombomodulin and PAI-1 in IKKβ+/+ cell supernatant under LPS stimulation, however they decreased in IKKβ−/−. The level of as antithrombin III however, appeared to show the opposite change to those other factors. Immunofluorescence demonstrated a greatly enhanced expression of p65 in the nucleus by IKKβ upregulation, which was reduced by IKKβ downregulation. Conclusions: IKKβ could regulate the expression and secretion of coagulation and fibrinolysis factors in LPS-stimulated AEC II via the NF-κB p65 signaling pathway. The IKKβ molecule is expected to be a new target for prevention of coagulation and fibrinolysis abnormalities in ARDS.
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Affiliation(s)
- Bo Liu
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
| | - Yahui Wang
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
| | - Yanqi Wu
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
| | - Yumei Cheng
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
| | - Hong Qian
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
| | - Huilin Yang
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
| | - Feng Shen
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
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Shaw TD, McAuley DF, O’Kane CM. Emerging drugs for treating the acute respiratory distress syndrome. Expert Opin Emerg Drugs 2019; 24:29-41. [DOI: 10.1080/14728214.2019.1591369] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Timothy D. Shaw
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University Belfast, Belfast, UK
| | - Daniel F. McAuley
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University Belfast, Belfast, UK
- Regional Intensive Care Unit, Royal Victoria Hospital, Belfast, UK
| | - Cecilia M. O’Kane
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University Belfast, Belfast, UK
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48
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Liu B, Wu Y, Wang Y, Cheng Y, Yao L, Liu Y, Qian H, Yang H, Shen F. NF-κB p65 Knock-down inhibits TF, PAI-1 and promotes activated protein C production in lipopolysaccharide-stimulated alveolar epithelial cells type II. Exp Lung Res 2018; 44:241-251. [PMID: 30449218 DOI: 10.1080/01902148.2018.1505975] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Purpose/aim: Activated coagulation and reduced fibrinolysis in alveolar compartment are an important characteristics in acute respiratory distress syndrome (ARDS). Alveolar epithelial cell type II (AECII) participates in regulating the intra-alveolar abnormalities of coagulation and fibrinolysis mainly through adjusting the productions of tissue factor (TF), plasminogen activator inhibitor (PAI)-1 and activated protein C (APC) in ARDS. NF-κB signal pathway may be involved in coagulation regulation in sepsis-induced ALI. The purpose of this study was to testify the hypothesis that NF-κB p65 (p65) knock-down would improve the abnormalities of coagulation and fibrinolysis mediated by lipopolysaccharide (LPS) stimulation in AECII. MATERIALS AND METHODS p65 gene knock-down in AECII was achieved by small interfering RNA (siRNA) transfection. Rat AECII (RLE-6TN) with or without p65 gene knock-down were stimulated by LPS for 24 hours. And then cytolysate was used for TF, PAI-1 expression examination, and supernatant was collected for TF, PAI-1 and PC concentrations determination. Activation of NF-κB canonical pathway was simultaneously checked by western-blotting, RT-PCR and immunofluorescence respectively. RESULTS TF, PAI-1 expressions in normal cells obviously increased under LPS stimulation with NF-κB canonical pathway activation represented by high levels of p65, p-p65, p-IκB with increased nuclear translocation of p-p65. Cells with NF-κB p65 knock-down, however, showed significant decreases in TF, PAI-1, p65, p-p65, p-IκB expressions following LPS stimulation with significant reduction in p-p65 nuclear translocation as compared to normal and siRNA control cells. The high concentrations of TF, PAI-1 and low level of APC in supernatant induced by LPS in normal cells were significantly reversed through p65 knock-down. CONCLUSIONS The experimental findings demonstrate that NF-kB signaling pathway is involved in regulating the expressions of coagulation and fibrinolysis factors in LPS-stimulated AECII, which suggest that NF-kB signaling pathway may be a new target to correct intra-alveolar coagulation and fibrinolytic abnormalities in ARDS.
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Affiliation(s)
- Bo Liu
- a Department of Critical Care Medicine , The Affiliated Hospital of Guizhou Medical University , Guiyang , China
| | - Yanqi Wu
- a Department of Critical Care Medicine , The Affiliated Hospital of Guizhou Medical University , Guiyang , China
| | - Yahui Wang
- a Department of Critical Care Medicine , The Affiliated Hospital of Guizhou Medical University , Guiyang , China
| | - Yumei Cheng
- a Department of Critical Care Medicine , The Affiliated Hospital of Guizhou Medical University , Guiyang , China
| | - Ling Yao
- b Department of Critical Care Medicine , The Second Affiliated Hospital of Guizhou Medical University , Kaili China
| | - Yuqin Liu
- c Department of Critical Care Medicine , The Fourth People's Hospital of Zhenjiang Ctiy , Zhenjiang , China
| | - Hong Qian
- a Department of Critical Care Medicine , The Affiliated Hospital of Guizhou Medical University , Guiyang , China
| | - Huilin Yang
- a Department of Critical Care Medicine , The Affiliated Hospital of Guizhou Medical University , Guiyang , China
| | - Feng Shen
- a Department of Critical Care Medicine , The Affiliated Hospital of Guizhou Medical University , Guiyang , China
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Hamilton BCS, Dincheva GR, Zhuo H, Golden JA, Brzezinski M, Singer JP, Matthay MA, Kukreja J. Elevated donor plasminogen activator inhibitor-1 levels and the risk of primary graft dysfunction. Clin Transplant 2018; 32:e13210. [PMID: 29377268 DOI: 10.1111/ctr.13210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/22/2018] [Indexed: 01/11/2023]
Abstract
Primary graft dysfunction (PGD) following lung transplantation is associated with elevated recipient plasma levels of plasminogen activator inhibitor-1 (PAI-1) and the receptor for advanced glycation end products (RAGE). However, the significance of these biomarkers in the donor plasma is uncertain. We hypothesized that elevated donor plasma levels of PAI-1 and RAGE would be associated with recipient PGD. We carried out a prospective unmatched case-control study of double-lung transplant recipients between May 2014 and September 2015. We compared donor plasma levels of PAI-1 and RAGE using rank-sum tests and t tests, in 12 recipients who developed PGD grade 2 or 3 within 72 hours postoperatively with 13 recipients who did not. Recipients who developed PGD had higher donor plasma levels of PAI-1 than recipients who did not (median 2.7 ng/mL vs 1.4; P = .03). Recipients with PGD also had numerically higher donor plasma levels of RAGE than recipients without PGD, although this difference did not achieve statistical significance (median 1061 pg/mL vs 679; P = .12). Systemic inflammatory responses in the donor, as reflected by elevated plasma levels of PAI-1, may contribute to the risk of developing PGD. Rapid biomarker assessment of easily available plasma samples may assist in donor lung selection and risk stratification.
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Affiliation(s)
| | | | - Hanjing Zhuo
- Department of Surgery, University of California, San Francisco, CA, USA
| | - Jeffrey A Golden
- Department of Surgery, University of California, San Francisco, CA, USA
| | - Marek Brzezinski
- Department of Surgery, University of California, San Francisco, CA, USA
| | - Jonathan P Singer
- Department of Surgery, University of California, San Francisco, CA, USA
| | - Michael A Matthay
- Department of Surgery, University of California, San Francisco, CA, USA
| | - Jasleen Kukreja
- Department of Surgery, University of California, San Francisco, CA, USA
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50
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Hamilton BCS, Kukreja J, Ware LB, Matthay MA. Protein biomarkers associated with primary graft dysfunction following lung transplantation. Am J Physiol Lung Cell Mol Physiol 2017; 312:L531-L541. [PMID: 28130262 DOI: 10.1152/ajplung.00454.2016] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 01/23/2017] [Accepted: 01/23/2017] [Indexed: 12/13/2022] Open
Abstract
Severe primary graft dysfunction affects 15-20% of lung transplant recipients and carries a high mortality risk. In addition to known donor, recipient, and perioperative clinical risk factors, numerous biologic factors are thought to contribute to primary graft dysfunction. Our current understanding of the pathogenesis of lung injury and primary graft dysfunction emphasizes multiple pathways leading to lung endothelial and epithelial injury. Protein biomarkers specific to these pathways can be measured in the plasma, bronchoalveolar lavage fluid, and lung tissue. Clarification of the pathophysiology and timing of primary graft dysfunction could illuminate predictors of dysfunction, allowing for better risk stratification, earlier identification of susceptible recipients, and development of targeted therapies. Here, we review much of what has been learned about the association of protein biomarkers with primary graft dysfunction and evaluate this association at different measurement time points.
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Affiliation(s)
- B C S Hamilton
- Department of Surgery, University of California San Francisco, San Francisco, California;
| | - J Kukreja
- Department of Surgery, University of California San Francisco, San Francisco, California
| | - L B Ware
- Department of Medicine and Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - M A Matthay
- Department of Medicine, Anesthesia, and the Cardiovascular Research Institute, University of California San Francisco, San Francisco, California; and
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