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Shi X, Simms KJ, Ewing TJ, Lin YP, Chen YL, Melvan JN, Siggins RW, Zhang P. The bone marrow endothelial progenitor cell response to septic infection. Front Immunol 2024; 15:1368099. [PMID: 38665923 PMCID: PMC11044677 DOI: 10.3389/fimmu.2024.1368099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 03/01/2024] [Indexed: 04/28/2024] Open
Abstract
Early increase in the level of endothelial progenitor cells (EPCs) in the systemic circulation occurs in patients with septic infection/sepsis. The significance and underlying mechanisms of this response remain unclear. This study investigated the bone marrow EPC response in adult mice with septic infection induced by intravenous injection (i.v.) of Escherichia coli. For in vitro experiments, sorted marrow stem/progenitor cells (SPCs) including lineage(lin)-stem cell factor receptor (c-kit)+stem cell antigen-1 (Sca-1)-, lin-c-kit+, and lin- cells were cultured with or without lipopolysaccharides (LPSs) and recombinant murine vascular endothelial growth factor (VEGF) in the absence and presence of anti-Sca-1 crosslinking antibodies. In a separate set of experiments, marrow lin-c-kit+ cells from green fluorescence protein (GFP)+ mice, i.v. challenged with heat-inactivated E. coli or saline for 24 h, were subcutaneously implanted in Matrigel plugs for 5 weeks. Marrow lin-c-kit+ cells from Sca-1 knockout (KO) mice challenged with heat-inactivated E. coli for 24 h were cultured in the Matrigel medium for 8 weeks. The marrow pool of EPCs bearing the lin-c-kit+Sca-1+VEGF receptor 2 (VEGFR2)+ (LKS VEGFR2+) and LKS CD133+VEGFR2+ surface markers expanded rapidly following septic infection, which was supported by both proliferative activation and phenotypic conversion of marrow stem/progenitor cells. Increase in marrow EPCs and their reprogramming for enhancing angiogenic activity correlated with cell-marked upregulation of Sca-1 expression. Sca-1 was coupled with Ras-related C3 botulinum toxin substrate 2 (Rac2) in signaling the marrow EPC response. Septic infection caused a substantial increase in plasma levels of IFN-γ, VEGF, G-CSF, and SDF-1. The early increase in circulating EPCs was accompanied by their active homing and incorporation into pulmonary microvasculature. These results demonstrate that the marrow EPC response is a critical component of the host defense system. Sca-1 signaling plays a pivotal role in the regulation of EPC response in mice with septic infection.
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Affiliation(s)
- Xin Shi
- Department of Integrative Medical Sciences, Department of Surgery, College of Medicine, Northeast Ohio Medical University, Rootstown, OH, United States
| | - Kevin J. Simms
- Department of Integrative Medical Sciences, Department of Surgery, College of Medicine, Northeast Ohio Medical University, Rootstown, OH, United States
| | - Thomas J. Ewing
- West Clinical Laboratory, Lakeland Regional Health Medical Center, Lakeland, FL, United States
| | | | - Yi-Ling Chen
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung City, Taiwan
| | - John N. Melvan
- Memorial Cardiac and Vascular Institute, Memorial Healthcare System, Hollywood, FL, United States
| | - Robert W. Siggins
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Ping Zhang
- Department of Integrative Medical Sciences, Department of Surgery, College of Medicine, Northeast Ohio Medical University, Rootstown, OH, United States
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Shi X, Seidle KA, Simms KJ, Dong F, Chilian WM, Zhang P. Endothelial progenitor cells in the host defense response. Pharmacol Ther 2023; 241:108315. [PMID: 36436689 PMCID: PMC9944665 DOI: 10.1016/j.pharmthera.2022.108315] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/15/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022]
Abstract
Extensive injury of endothelial cells in blood vasculature, especially in the microcirculatory system, frequently occurs in hosts suffering from sepsis and the accompanied systemic inflammation. Pathological factors, including toxic components derived from invading microbes, oxidative stress associated with tissue ischemia/reperfusion, and vessel active mediators generated during the inflammatory response, are known to play important roles in mediating endothelial injury. Collapse of microcirculation and tissue edema developed from the failure of endothelial barrier function in vital organ systems, including the lung, brain, and kidney, are detrimental, which often predict fatal outcomes. The host body possesses a substantial capacity for maintaining vascular homeostasis and repairing endothelial damage. Bone marrow and vascular wall niches house endothelial progenitor cells (EPCs). In response to septic challenges, EPCs in their niche environment are rapidly activated for proliferation and angiogenic differentiation. In the meantime, release of EPCs from their niches into the blood stream and homing of these vascular precursors to tissue sites of injury are markedly increased. The recruited EPCs actively participate in host defense against endothelial injury and repair of damage in blood vasculature via direct differentiation into endothelial cells for re-endothelialization as well as production of vessel active mediators to exert paracrine and autocrine effects on angiogenesis/vasculogenesis. In recent years, investigations on significance of EPCs in host defense and molecular signaling mechanisms underlying regulation of the EPC response have achieved substantial progress, which promotes exploration of vascular precursor cell-based approaches for effective prevention and treatment of sepsis-induced vascular injury as well as vital organ system failure.
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Affiliation(s)
- Xin Shi
- Department of Integrative Medical Sciences, Northeast Ohio Medical University College of Medicine, Rootstown, OH 44272, United States of America
| | - Kelly A Seidle
- Department of Integrative Medical Sciences, Northeast Ohio Medical University College of Medicine, Rootstown, OH 44272, United States of America
| | - Kevin J Simms
- Department of Integrative Medical Sciences, Northeast Ohio Medical University College of Medicine, Rootstown, OH 44272, United States of America
| | - Feng Dong
- Department of Integrative Medical Sciences, Northeast Ohio Medical University College of Medicine, Rootstown, OH 44272, United States of America
| | - William M Chilian
- Department of Integrative Medical Sciences, Northeast Ohio Medical University College of Medicine, Rootstown, OH 44272, United States of America
| | - Ping Zhang
- Department of Integrative Medical Sciences, Northeast Ohio Medical University College of Medicine, Rootstown, OH 44272, United States of America.
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Heidarzadeh M, Avcı ÇB, Saberianpour S, Ahmadi M, Hassanpour M, Bagheri HS, Rezaie J, Talebi M, Roodbari F, Sokullu E, Darabi M, Rahbarghazi R. Activation of toll-like receptor signaling in endothelial progenitor cells dictates angiogenic potential: from hypothesis to actual state. Cell Tissue Res 2021; 384:389-401. [PMID: 33459880 DOI: 10.1007/s00441-020-03405-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 12/15/2020] [Indexed: 12/14/2022]
Abstract
Human endothelial progenitor cells (EPCs) were isolated from cord blood samples and enriched by magnetic activated cell sorting method based on the CD133 marker. Cells were incubated with different doses of bacterial lipopolysaccharide, ranging from 2, 5, 10, 50, 100, 200, 250, 500, to 1000 µg/ml, for 48 h. The cell survival rate was determined by using MTT assay. To confirm activation of the toll-like receptor signaling pathway, PCR array analysis was performed. Protein levels of ERK1/2, p-ERK1/2, NF-ƙB and TRIF proteins were measured using western blotting. The content of TNF-α and lipoprotein lipase activity were analyzed by immunofluorescence imaging. Flow cytometric analysis of CD31 was performed to assess the maturation rate. Cell migration was studied by the Transwell migration assay. The expression of genes related to exosome biogenesis was measured using real-time PCR analysis. In vivo gel plug angiogenesis assay was done in nude mice. Lipopolysaccharide changed endothelial progenitor cells' survival in a dose-dependent manner with maximum viable cells in groups treated with 2 µg/ml. PCR array analysis showed the activation of toll-like signaling pathways after exposure to LPS (p<0.05). Western blotting analysis indicated an induction of p-ERK1/2 and Erk1/2, NF-kB and TRIF in LPS-treated EPCs compared with the control (p<0.05). Immunofluorescence staining showed an elevation of TNF-α and lipoprotein lipase activity after lipopolysaccharide treatment (p<0.05). Lipopolysaccharide increased EPC migration and expression of exosome biogenesis-related genes (p<0.05). In vivo gel plug analysis revealed enhanced angiogenesis in cells exposed to bacterial lipopolysaccharide. Data highlighted the close relationship between the toll-like receptor signaling pathway and functional activity in EPCs.
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Affiliation(s)
- Morteza Heidarzadeh
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Koç University Research Center for Translational Medicine (KUTTAM), Rumeli Fener, Sarıyer, Istanbul, Turkey
| | - Çığır Biray Avcı
- Department of Medical Biology, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Shirin Saberianpour
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Ahmadi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Hassanpour
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Jafar Rezaie
- Solid Tumor Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran
| | - Mehdi Talebi
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Roodbari
- Department of Microbiology, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran
| | - Emel Sokullu
- Koç University Research Center for Translational Medicine (KUTTAM), Rumeli Fener, Sarıyer, Istanbul, Turkey
- Biophysics Department, Koç University School of Medicine, Rumeli Feneri, Istanbul, Turkey
| | - Masoud Darabi
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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4
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Gao L, Shi Q, Li H, Guo Q, Yan J, Zhou L. Prognostic value of the combined variability of mean platelet volume and neutrophil percentage for short-term clinical outcomes of sepsis patients. Postgrad Med 2020; 133:604-612. [PMID: 32912023 DOI: 10.1080/00325481.2020.1823137] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
INTRODUCTION In this single center retrospective cohort study, 784 patients with sepsis were enrolled and followed up for at least 30 days. The selected endpoint was an all-cause mortality event. METHOD The relationship between MPV-CV + NEU%-CV and all-cause mortality (in-hospital and 30-day) was analyzed by categorizing the patients into four groups according to MPV-CV and NEU%-CV values. For in-hospital mortality, a significantly higher risk of mortality was observed in patients with an MPV-CV ≥ 15.00% + NEU%-CV ≥ 16.00% than in patients of the other groups (P < 0.001). After adjustment for age, sex, body mass index (BMI), infection site, Acute Physiology and Chronic Health Evaluation (APACHE) II score, Sequential Organ Failure Assessment (SOFA) score, use of vasoactive drugs, mechanical ventilation and renal replacement therapy (RRT), hematocrit, albumin, procalcitonin (PCT), and lactate, logistic regression analysis revealed that an MPV-CV ≥ 15.00% + NEU%-CV ≥ 16.00% was an independent predictive factor for in-hospital mortality [adjusted model: odds ratio (OR) = 4.48, 95% CI = 2.92-6.88, P = 0.001]. RESULTS After adjustment for age, sex, BMI, infection site, APACHE II score, SOFA score, hematocrit, albumin, PCT, lactate, and the use of vasoactive drugs, mechanical ventilation, and RRT, Cox proportional-hazards regression model revealed that an MPV-CV ≥ 15.00% + NEU%-CV ≥ 16.00% was an independent predictive factor for 30-day mortality [adjusted model 1: hazard ratio (HR) = 7.69, 95% CI = 4.15-14.24, P < 0.001; adjusted model 2: HR = 4.07, 95% CI = 2.50-6.62, P < 0.001]. CONCLUSION The combination of MPV-CV and NEU%-CV provides a good prognostic value and is a strong independent predictor of short-term clinical outcomes in patients with sepsis. An MPV-CV ≥ 15.00% + NEU%-CV ≥ 16.00% is significantly associated with adverse short-term clinical outcomes.Trial registration number is XJTU2AF2016LSY-04, the registration date is December 2018.
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Affiliation(s)
- Lan Gao
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Qindong Shi
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Hao Li
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Qinyue Guo
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jinqi Yan
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Linjing Zhou
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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5
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Gao L, Shi Q, Li H, Guo Q, Yan J. Prognostic value of baseline APACHE II score combined with uric acid concentration for short-term clinical outcomes in patients with sepsis. ALL LIFE 2020. [DOI: 10.1080/26895293.2020.1796828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- Lan Gao
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People’s Republic of China
| | - Qindong Shi
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People’s Republic of China
| | - Hao Li
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People’s Republic of China
| | - Qinyue Guo
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People’s Republic of China
| | - Jinqi Yan
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People’s Republic of China
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6
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Sun R, Huang J, Sun B. Mobilization of endothelial progenitor cells in sepsis. Inflamm Res 2019; 69:1-9. [DOI: 10.1007/s00011-019-01299-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 11/07/2019] [Accepted: 11/08/2019] [Indexed: 12/17/2022] Open
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Heidarzadeh M, Roodbari F, Hassanpour M, Ahmadi M, Saberianpour S, Rahbarghazi R. Toll-like receptor bioactivity in endothelial progenitor cells. Cell Tissue Res 2019; 379:223-230. [PMID: 31754781 DOI: 10.1007/s00441-019-03119-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 10/06/2019] [Indexed: 12/12/2022]
Abstract
Cardiovascular disease is the main cause of death globally that can be mitigated by the modulation of angiogenesis. To achieve this goal, the application of endothelial progenitor cells and other stem cell types is useful. Following the onset of cardiovascular disease and pro-inflammatory conditions as seen during bacterial sepsis, endothelial progenitor cells enter systemic circulation in response to multiple cytokines and activation of various intracellular mechanisms. The critical role of Toll-like receptors has been previously identified in the dynamics of various cell types, in particular, immune cells. To our knowledge, there are a few experiments related to the role of Toll-like receptors in endothelial progenitor cell activity. Emerging data point of endothelial progenitor cells and other stem cells having the potential to express Toll-like receptors to control different activities such as multipotentiality and dynamics of growth. In this review article, we aim to collect data related to the role of Toll-like receptors in endothelial progenitor cells bioactivity and angiogenic potential.
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Affiliation(s)
- Morteza Heidarzadeh
- Department of Microbiology, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran.,Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Roodbari
- Department of Microbiology, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran.
| | - Mehdi Hassanpour
- Department of Clinical Biochemistry and Laboratory Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Ahmadi
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shirin Saberianpour
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran. .,Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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8
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Endothelial Progenitor Cells Biology in Diabetes Mellitus and Peripheral Arterial Disease and their Therapeutic Potential. Stem Cell Rev Rep 2018; 15:157-165. [DOI: 10.1007/s12015-018-9863-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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9
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Bermejo-Martin JF, Martín-Fernandez M, López-Mestanza C, Duque P, Almansa R. Shared Features of Endothelial Dysfunction between Sepsis and Its Preceding Risk Factors (Aging and Chronic Disease). J Clin Med 2018; 7:E400. [PMID: 30380785 PMCID: PMC6262336 DOI: 10.3390/jcm7110400] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 10/19/2018] [Accepted: 10/27/2018] [Indexed: 02/06/2023] Open
Abstract
Acute vascular endothelial dysfunction is a central event in the pathogenesis of sepsis, increasing vascular permeability, promoting activation of the coagulation cascade, tissue edema and compromising perfusion of vital organs. Aging and chronic diseases (hypertension, dyslipidaemia, diabetes mellitus, chronic kidney disease, cardiovascular disease, cerebrovascular disease, chronic pulmonary disease, liver disease, or cancer) are recognized risk factors for sepsis. In this article we review the features of endothelial dysfunction shared by sepsis, aging and the chronic conditions preceding this disease. Clinical studies and review articles on endothelial dysfunction in sepsis, aging and chronic diseases available in PubMed were considered. The main features of endothelial dysfunction shared by sepsis, aging and chronic diseases were: (1) increased oxidative stress and systemic inflammation, (2) glycocalyx degradation and shedding, (3) disassembly of intercellular junctions, endothelial cell death, blood-tissue barrier disruption, (4) enhanced leukocyte adhesion and extravasation, (5) induction of a pro-coagulant and anti-fibrinolytic state. In addition, chronic diseases impair the mechanisms of endothelial reparation. In conclusion, sepsis, aging and chronic diseases induce similar features of endothelial dysfunction. The potential contribution of pre-existent endothelial dysfunction to sepsis pathogenesis deserves to be further investigated.
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Affiliation(s)
- Jesus F Bermejo-Martin
- Group for Biomedical Research in Sepsis (Bio∙Sepsis), Hospital Clínico Universitario de Valladolid/IECSCYL, Av. Ramón y Cajal, 3, 47003 Valladolid, Spain.
- Centro de Investigación Biomedica En Red-Enfermedades Respiratorias (CibeRes, CB06/06/0028), Instituto de salud Carlos III (ISCIII), Av. de Monforte de Lemos, 5, 28029 Madrid, Spain.
| | - Marta Martín-Fernandez
- Group for Biomedical Research in Sepsis (Bio∙Sepsis), Hospital Clínico Universitario de Valladolid/IECSCYL, Av. Ramón y Cajal, 3, 47003 Valladolid, Spain.
| | - Cristina López-Mestanza
- Group for Biomedical Research in Sepsis (Bio∙Sepsis), Hospital Clínico Universitario de Valladolid/IECSCYL, Av. Ramón y Cajal, 3, 47003 Valladolid, Spain.
| | - Patricia Duque
- Anesthesiology and Reanimation Service, Hospital General Universitario Gregorio Marañón, Calle del Dr. Esquerdo, 46, 28007 Madrid, Spain.
| | - Raquel Almansa
- Group for Biomedical Research in Sepsis (Bio∙Sepsis), Hospital Clínico Universitario de Valladolid/IECSCYL, Av. Ramón y Cajal, 3, 47003 Valladolid, Spain.
- Centro de Investigación Biomedica En Red-Enfermedades Respiratorias (CibeRes, CB06/06/0028), Instituto de salud Carlos III (ISCIII), Av. de Monforte de Lemos, 5, 28029 Madrid, Spain.
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Patry C, Stamm D, Betzen C, Tönshoff B, Yard BA, Beck GC, Rafat N. CXCR-4 expression by circulating endothelial progenitor cells and SDF-1 serum levels are elevated in septic patients. JOURNAL OF INFLAMMATION-LONDON 2018; 15:10. [PMID: 29796010 PMCID: PMC5956812 DOI: 10.1186/s12950-018-0186-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 05/07/2018] [Indexed: 12/26/2022]
Abstract
Background Endothelial progenitor cell (EPC) numbers are increased in septic patients and correlate with survival. In this study, we investigated, whether surface expression of chemokine receptors and other receptors important for EPC homing is upregulated by EPC from septic patients and if this is associated with clinical outcome. Methods Peripheral blood mononuclear cells from septic patients (n = 30), ICU control patients (n = 11) and healthy volunteers (n = 15) were isolated by Ficoll density gradient centrifugation. FACS-analysis was used to measure the expression of the CXC motif chemokine receptors (CXCR)-2 and − 4, the receptor for advanced glycation endproducts (RAGE) and the stem cell factor receptor c-Kit. Disease severity was assessed via the Simplified Acute Physiology Score (SAPS) II. The serum concentrations of vascular endothelial growth factor (VEGF), stromal cell-derived factor (SDF)-1α and angiopoietin (Ang)-2 were determined with Enzyme linked Immunosorbent Assays. Results EPC from septic patients expressed significantly more CXCR-4, c-Kit and RAGE compared to controls and were associated with survival-probability. Significantly higher serum concentrations of VEGF, SDF-1α and Ang-2 were found in septic patients. SDF-1α showed a significant association with survival. Conclusions Our data suggest that SDF-1α and CXCR-4 signaling could play a crucial role in EPC homing in the course of sepsis. Electronic supplementary material The online version of this article (10.1186/s12950-018-0186-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Christian Patry
- 1Department of Pediatrics I, University Children's Hospital Heidelberg, Im Neuenheimer Feld 430, 69120 Heidelberg, Germany.,2Institute of Physiology and Pathophysiology, Division of Cardiovascular Physiology, University of Heidelberg, Im Neuenheimer Feld 326, 69120 Heidelberg, Germany
| | - Daniela Stamm
- 3Department of Anaesthesiology and Critical Care Medicine, University Medical Center Mannheim, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
| | - Christian Betzen
- 1Department of Pediatrics I, University Children's Hospital Heidelberg, Im Neuenheimer Feld 430, 69120 Heidelberg, Germany
| | - Burkhard Tönshoff
- 1Department of Pediatrics I, University Children's Hospital Heidelberg, Im Neuenheimer Feld 430, 69120 Heidelberg, Germany
| | - Benito A Yard
- 4Department of Medicine V, University Medical Centre Mannheim, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
| | - Grietje Ch Beck
- Department of Anaesthesiology and Critical Care Medicine, HELIOS Dr. Horst Schmidt Kliniken, Wiesbaden, Ludwig-Erhard-Straße 100, 65199 Wiesbaden, Germany
| | - Neysan Rafat
- 1Department of Pediatrics I, University Children's Hospital Heidelberg, Im Neuenheimer Feld 430, 69120 Heidelberg, Germany.,6Department of Neonatology, University Children's Hospital Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany.,Department of Pharmaceutical Sciences, Bahá'í Institute of Higher Education (BIHE), Teheran, Iran
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11
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VCAM-1 expression is upregulated by CD34+/CD133+-stem cells derived from septic patients. PLoS One 2018; 13:e0195064. [PMID: 29601599 PMCID: PMC5877884 DOI: 10.1371/journal.pone.0195064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 03/15/2018] [Indexed: 12/29/2022] Open
Abstract
CD34+/CD133+- cells are a bone marrow derived stem cell population, which presumably contain vascular progenitor cells and are associated with improved vascular repair. In this study, we investigated whether the adhesion molecules ICAM-1 (intercellular adhesion molecule-1), VCAM-1 (vascular adhesion molecule-1), E-selectin und L-selectin, which are involved in homing of vascular stem cells, are upregulated by CD34+/CD133+-stem cells from septic patients and would be associated with improved clinical outcome. Peripheral blood mononuclear cells from intensive care unit (ICU) patients with (n = 30) and without sepsis (n = 10), and healthy volunteers (n = 15) were isolated using Ficoll density gradient centrifugation. The expression of VCAM-1, ICAM-1, E-selectin and L-selectin was detected on CD34+/CD133+-stem cells by flow cytometry. The severity of disease was assessed by the Simplified Acute Physiology Score (SAPS) II. Serum concentrations of vascular endothelial growth factor (VEGF) and angiopoietin (Ang)-2 were determined by Enzyme-linked immunosorbent assay. The expression of VCAM-1, ICAM-1, E-selectin and L-selectin by CD34+/CD133+-stem cells was significantly upregulated in septic patients, and correlated with sepsis severity. Furthermore, high expression of VCAM-1 by CD34+/CD133+-stem cells revealed a positive association with mortalitiy (p<0.05). Furthermore, significantly higher serum concentrations of VEGF and Ang-2 were found in septic patients, however none showed a strong association with survival. Our data suggest, that VCAM-1 upregulation on CD34+/CD133+-stem cells could play a crucial role in their homing in the course of sepsis. An increase in sepsis severity resulted in both and increase in CD34+/CD133+-stem cells and VCAM-1-expression by those cells, which might reflect an increase in need for vascular repair.
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12
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Progenitor Cells for Arterial Repair: Incremental Advancements towards Therapeutic Reality. Stem Cells Int 2017; 2017:8270498. [PMID: 28232850 PMCID: PMC5292398 DOI: 10.1155/2017/8270498] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 12/18/2016] [Indexed: 02/08/2023] Open
Abstract
Coronary revascularization remains the standard treatment for obstructive coronary artery disease and can be accomplished by either percutaneous coronary intervention (PCI) or coronary artery bypass graft surgery. Considerable advances have rendered PCI the most common form of revascularization and improved clinical outcomes. However, numerous challenges to modern PCI remain, namely, in-stent restenosis and stent thrombosis, underscoring the importance of understanding the vessel wall response to injury to identify targets for intervention. Among recent promising discoveries, endothelial progenitor cells (EPCs) have garnered considerable interest given an increasing appreciation of their role in vascular homeostasis and their ability to promote vascular repair after stent placement. Circulating EPC numbers have been inversely correlated with cardiovascular risk, while administration of EPCs in humans has demonstrated improved clinical outcomes. Despite these encouraging results, however, advancing EPCs as a therapeutic modality has been hampered by a fundamental roadblock: what constitutes an EPC? We review current definitions and sources of EPCs as well as the proposed mechanisms of EPC-mediated vascular repair. Additionally, we discuss the current state of EPCs as therapeutic agents, focusing on endogenous augmentation and transplantation.
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Lopez-Vilchez I, Diaz-Ricart M, Navarro V, Torramade S, Zamorano-Leon J, Lopez-Farre A, Galan AM, Gasto C, Escolar G. Endothelial damage in major depression patients is modulated by SSRI treatment, as demonstrated by circulating biomarkers and an in vitro cell model. Transl Psychiatry 2016; 6:e886. [PMID: 27598970 PMCID: PMC5048198 DOI: 10.1038/tp.2016.156] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 07/15/2016] [Accepted: 07/18/2016] [Indexed: 12/16/2022] Open
Abstract
There is a link between depression, cardiovascular events and inflammation. We have explored this connection through endothelial dysfunction, using in vivo and in vitro approaches. We evaluated circulating biomarkers of endothelial dysfunction in patients with major depression at their diagnosis (MD-0) and during antidepressant treatment with the selective serotonin reuptake inhibitor escitalopram, for 8 and 24 weeks (MD-8 and MD-24). Results were always compared with matched healthy controls (CON). We measured in vivo circulating endothelial cells (CECs) and endothelial progenitor cells (EPCs) in blood samples, and assessed plasma levels of soluble von Willebrand factor (VWF) and vascular cell adhesion molecule-1 (VCAM-1). CEC counts, soluble VWF and VCAM-1 were statistically elevated in MD-0 (P<0.01 versus CON) and gradually decreased during treatment. Conversely, EPC levels were lower in MD-0, tending to increase throughout treatment. In vitro studies were performed in human endothelial cells cultured in the presence of sera from each study group. Elevated expression of the inflammation marker intercellular adhesion molecule-1 and oxidative stress, with lower presence of endothelial nitric oxide synthase and higher reactive oxygen species production, were found in cells exposed to MD-0 sera (P<0.05 versus CON). These results were normalized in cells exposed to MD-24 sera. Thrombogenicity of extracellular matrices generated by these cells, measured as expression of VWF, tissue factor and platelet reactivity, showed non-significant differences. We provide a model of cultured endothelial cells reproducing endothelial dysfunction in naive patients with major depression, demonstrating endothelial damage and inflammation at diagnosis, and recovering with selective serotonin reuptake inhibitor treatment for 24 weeks.
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Affiliation(s)
- I Lopez-Vilchez
- Department of Hemotherapy and Hemostasis, Hospital Clinic of Barcelona, Biomedical Diagnosis Centre, Institute of Biomedical Research August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | - M Diaz-Ricart
- Department of Hemotherapy and Hemostasis, Hospital Clinic of Barcelona, Biomedical Diagnosis Centre, Institute of Biomedical Research August Pi i Sunyer, University of Barcelona, Barcelona, Spain,Department of Hemotherapy and Hemostasis, Hospital Clinic of Barcelona, Villarroel 170, Barcelona 08036, Spain. E-mail:
| | - V Navarro
- Department of Psychiatry, Hospital Clinic of Barcelona, Institute Clinic of Neurosciences, Barcelona, Spain
| | - S Torramade
- Department of Hemotherapy and Hemostasis, Hospital Clinic of Barcelona, Biomedical Diagnosis Centre, Institute of Biomedical Research August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | - J Zamorano-Leon
- Department of Medicine, School of Medicine, Complutense University, Madrid, Spain
| | - A Lopez-Farre
- Department of Medicine, School of Medicine, Complutense University, Madrid, Spain
| | - A M Galan
- Department of Hemotherapy and Hemostasis, Hospital Clinic of Barcelona, Biomedical Diagnosis Centre, Institute of Biomedical Research August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | - C Gasto
- Department of Psychiatry, Hospital Clinic of Barcelona, Institute Clinic of Neurosciences, Barcelona, Spain
| | - G Escolar
- Department of Hemotherapy and Hemostasis, Hospital Clinic of Barcelona, Biomedical Diagnosis Centre, Institute of Biomedical Research August Pi i Sunyer, University of Barcelona, Barcelona, Spain
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