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Rafael-Vidal C, Martínez-Ramos S, Malvar-Fernández B, Altabás-González I, Mouriño C, Pazos-López P, Fraga-Bau A, Pego Reigosa JM, García S. Novel endothelial progenitor cells populations as biomarkers of damage and remission in systemic lupus erythematosus. Arthritis Res Ther 2024; 26:170. [PMID: 39342288 PMCID: PMC11438060 DOI: 10.1186/s13075-024-03397-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 09/04/2024] [Indexed: 10/01/2024] Open
Abstract
INTRODUCTION Endothelial progenitor cells (EPCs) are essential for maintenance of vascular homeostasis and stability, key processes in the pathogenesis of systemic lupus erythematosus (SLE). However, the role and phenotypic characterization of EPCs populations in SLE have not been completely elucidated. OBJECTIVE To identify EPCs specific subpopulations in patients with SLE using a novel flow cytometry tool. METHODS Peripheral blood mononuclear cells (PBMCs) were isolated from patients with SLE and healthy controls (HC). mRNA and surface protein expression were determined by quantitative PCR (qPCR) and flow cytometry. Clusters identification and characterization were performed using tSNE-CUDA dimensionality reduction algorithms. RESULTS tSNE-CUDA analysis identified eight different clusters in PBMCs from HC and patients with SLE. Three of these clusters had EPC-like phenotype and the expression was elevated in patients with SLE. Moreover, four SLE-associated subclusters were found mainly expressed in patients with SLE, being only present in patients in remission with SLE and significantly associated with the 2021 Definition of Remission in SLE. Importantly, we also identified specific clusters in SLE patients with organ damage, according to the Systemic Lupus International Collaborating Clinics (SLICC)/American College of Rheumatology damage index (SDI). These clusters showed an EPC-like phenotype, but the expression of angiogenic markers was lower compared to HC or patients without organ damage, suggesting an impaired angiogenic function. CONCLUSION Our novel approach identified clusters of EPCs in patients with SLE that are associated with remission and damage. Therefore, these clusters might be useful biomarkers to predict disease progression and severity in SLE pathogenesis.
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Affiliation(s)
- Carlos Rafael-Vidal
- Rheumatology and Immune-Mediated Diseases Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, Vigo, Spain
| | - Sara Martínez-Ramos
- Rheumatology and Immune-Mediated Diseases Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, Vigo, Spain
| | - Beatriz Malvar-Fernández
- Rheumatology and Immune-Mediated Diseases Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, Vigo, Spain
| | - Irene Altabás-González
- Rheumatology and Immune-Mediated Diseases Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, Vigo, Spain
- Rheumatology Department, University Hospital Complex of Vigo, Vigo, Spain
| | - Coral Mouriño
- Rheumatology and Immune-Mediated Diseases Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, Vigo, Spain
- Rheumatology Department, University Hospital Complex of Vigo, Vigo, Spain
| | - Pablo Pazos-López
- Department of Cardiology, University Hospital Complex of Vigo, Vigo, Spain
| | - Arturo Fraga-Bau
- Department of Clinical Neurology, University Hospital Complex of Vigo, Vigo, Spain
| | - José María Pego Reigosa
- Rheumatology and Immune-Mediated Diseases Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, Vigo, Spain.
- Rheumatology Department, University Hospital Complex of Vigo, Vigo, Spain.
| | - Samuel García
- Rheumatology and Immune-Mediated Diseases Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, Vigo, Spain
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Höltig D, Reiner G. [Opportunities and risks of the use of genetic resistances to infectious diseases in pigs - an overview]. Tierarztl Prax Ausg G Grosstiere Nutztiere 2022; 50:46-58. [PMID: 35235982 DOI: 10.1055/a-1751-3531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Demands for health, performance and welfare in pigs, as well as the desire for consumer protection and reduced antibiotic use, require optimal measures in advance of disease development. This includes, in principle, the use of genetically more resistant lines and breeding animals, whose existence has been proven for a wide range of pathogen-host interactions. In addition, attempts are being made to identify the gene variants responsible for disease resistance in order to force the selection of suitable populations, also using modern biotechnical technics. The present work is intended to provide an overview of the research status achieved in this context and to highlight opportunities and risks for the future.The evaluation of the international literature shows that genetic disease resistance exist in many areas of swine diseases. However, polygenic inheritance, lack of animal models and the influence of environmental factors during evaluation render their implementation in practical breeding programs demanding. This is where modern molecular genetic methods, such as Gene Editing, come into play. Both approaches possess their pros and cons, which are discussed in this paper. The most important infectious diseases in pigs, including general diseases and epizootics, diseases of the respiratory and digestive tract and diseases of the immune system are taken into account.
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Affiliation(s)
- Doris Höltig
- Klinik für kleine Klauentiere, forensische Medizin und Ambulatorische Klinik, Stiftung Tierärztliche Hochschule Hannover
| | - Gerald Reiner
- Klinikum Veterinärmedizin, Justus-Liebig-Universität
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Briceño O, Peralta-Prado A, Garrido-Rodríguez D, Romero-Mora K, Chávez-Torres M, de la Barrera CA, Reyes-Terán G, Ávila-Ríos S. Characterization of CD31 expression in CD4+ and CD8+T cell subpopulations in chronic untreated HIV infection. Immunol Lett 2021; 235:22-31. [PMID: 33852965 DOI: 10.1016/j.imlet.2021.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 03/09/2021] [Accepted: 04/07/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND The platelet endothelial cell adhesion molecule-1 (PECAM-1) or CD31 has been involved in regulation of T-cell tolerance, activation, survival and homing in mice cells. However, there is limited knowledge about the expression pattern and role of this molecule in human T cells, particularly in conditions of chronic immune activation. OBJECTIVES We explored CD31 expression in T cell differentiation subsets of individuals with untreated HIV infection and in non-HIV-infected controls. We also assessed phenotypic differences between CD31+ and CD31- subsets in memory and terminally differentiated (TEMRA) CD4+ and CD8 + T cells. METHODS Forty-one individuals with untreated HIV infection and 34 non-HIV-infected controls were included in the study. We compared the expression of CD31 in CD4+ and CD8 + T cells across stages of differentiation in the two study groups by flow cytometry. We also analyzed the expression of CD57 (a marker of senescence), Ki67 (a marker of cycling cells), PD-1 (a marker of exhaustion), and CD38/HLA-DR (a marker of immune activation) on memory and TEMRA CD31+ and CD31- T cells. RESULTS CD31 expression was significantly higher in CD8 + T cells than in CD4 + T cells, measured as frequency, absolute numbers and median fluorescence intensity (MFI), in both study groups (p < 0.0001 in all cases). Intermediate differentiation subsets of CD4+ and CD8 + T cells expressed higher levels of CD31 in the context of HIV infection (p < 0.001 in all cases). CD31 expression frequency decreased with cellular differentiation of CD4+ and CD8 + T cells in both groups, but this decrease was steeper in individuals without HIV infection (CD4+: p < 0.001 and CD8+: p < 0.0001). As expected, memory and TEMRA CD4+ and CD8 + T cells expressed significantly higher levels of CD57, PD-1, Ki67 and CD38/HLA-DR in HIV-infected compared to non-HIV-infected individuals (p < 0.01 in all cases). CD31 expression was associated with lower activation of memory (but not TEMRA) CD4 + T cells in non-HIV-infected persons, an effect not observed in the HIV-infected group. CD31 expression on memory CD8 + T cells of HIV-infected individuals was associated higher levels of PD-1 (p = 0.0019) and CD38/HLADR (p = 0.0345), and higher PD-1 expression on CD8 + TEMRA (p = 0.0024), an effect not observed in non-HIV-infected individuals. CONCLUSION In the context of HIV-associated chronic immune activation, specifically on memory CD8 + T cells, CD31 expression was associated with higher PD-1 and CD38/HLA-DR co-expression, suggesting that CD31 expression may result from an insufficient attempt to contain T cell exhaustion and activation. CD31-targeted therapies may contribute to modulate these cellular responses.
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Affiliation(s)
- Olivia Briceño
- Instituto Nacional de Enfermedades Respiratorias, Centro de Investigación en Enfermedades Infecciosas, México City, Mexico.
| | - Amy Peralta-Prado
- Instituto Nacional de Enfermedades Respiratorias, Centro de Investigación en Enfermedades Infecciosas, México City, Mexico
| | - Daniela Garrido-Rodríguez
- Instituto Nacional de Enfermedades Respiratorias, Centro de Investigación en Enfermedades Infecciosas, México City, Mexico
| | - Karla Romero-Mora
- Instituto Nacional de Enfermedades Respiratorias, Centro de Investigación en Enfermedades Infecciosas, México City, Mexico
| | - Monserrat Chávez-Torres
- Instituto Nacional de Enfermedades Respiratorias, Centro de Investigación en Enfermedades Infecciosas, México City, Mexico
| | - Claudia-Alvarado de la Barrera
- Instituto Nacional de Enfermedades Respiratorias, Centro de Investigación en Enfermedades Infecciosas, México City, Mexico
| | - Gustavo Reyes-Terán
- Coordinating Commission of the Mexican National Institutes of Health, Mexico City, Mexico
| | - Santiago Ávila-Ríos
- Instituto Nacional de Enfermedades Respiratorias, Centro de Investigación en Enfermedades Infecciosas, México City, Mexico
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Luo L, Xu M, Liao D, Deng J, Mei H, Hu Y. PECAM-1 protects against DIC by dampening inflammatory responses via inhibiting macrophage pyroptosis and restoring vascular barrier integrity. Transl Res 2020; 222:1-16. [PMID: 32417429 DOI: 10.1016/j.trsl.2020.04.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 03/12/2020] [Accepted: 04/07/2020] [Indexed: 12/16/2022]
Abstract
Disseminated intravascular coagulation (DIC) is a frequent complication of sepsis that affects patient outcomes due to accompanying thrombo-inflammation and microvascular permeability changes. Platelet endothelial cell adhesion molecule-1 (PECAM-1), a cellular adhesion and signaling receptor that is expressed on both hematopoietic and endothelial cells, plays an important anti-inflammatory role in acute and chronic inflammatory disease models. Little is known, however, about role and mechanism of PECAM-1 in septic DIC. Here, we investigated whether PECAM-1 might play a protective role in hindering the development of septic DIC. Plasma levels of soluble PECAM-1 were markedly elevated in septic patients that developed DIC, with a correspondingly poorer outcome. PECAM-1 knockout exhibited more severe DIC and poorer outcome in the LPS induced- and cecal ligation and puncture-induced DIC model, which could be alleviated by tissue factor inhibitor. This phenomenon seemed to be equally linked to PECAM-1 expression by both endothelial and blood cells. Furthermore, PECAM-1 was found to exert its protective effect on developing septic DIC by the following 2 distinct mechanisms: the inhibition of macrophage pyroptosis and the acceleration of the restoration of the endothelial cell barrier. Taken together, these results implicate PECAM-1 as a potentially attractive target for the development of novel therapeutics to manage and treat septic DIC.
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Affiliation(s)
- Lili Luo
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Min Xu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Danying Liao
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jun Deng
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Heng Mei
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Collaborative Innovation Center of Hematology, Huazhong University of Science and Technology, Wuhan, Hubei 430022, PR China.
| | - Yu Hu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Collaborative Innovation Center of Hematology, Huazhong University of Science and Technology, Wuhan, Hubei 430022, PR China
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5
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Zhi H, Kanaji T, Fu G, Newman DK, Newman PJ. Generation of PECAM-1 (CD31) conditional knockout mice. Genesis 2019; 58:e23346. [PMID: 31729819 DOI: 10.1002/dvg.23346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 10/17/2019] [Accepted: 10/17/2019] [Indexed: 12/18/2022]
Abstract
Platelet endothelial cell adhesion molecule 1 (PECAM-1) is an adhesion and signaling receptor that is expressed on endothelial and hematopoietic cells and plays important roles in angiogenesis, vascular permeability, and regulation of cellular responsiveness. To better understanding the tissue specificity of PECAM-1 functions, we generated mice in which PECAM1, the gene encoding PECAM-1, could be conditionally knocked out. A targeting construct was created that contains loxP sites flanking PECAM1 exons 1 and 2 and a neomycin resistance gene flanked by flippase recognition target (FRT) sites that was positioned upstream of the 3' loxP site. The targeting construct was electroporated into C57BL/6 embryonic stem (ES) cells, and correctly targeted ES cells were injected into C57BL/6 blastocysts, which were implanted into pseudo-pregnant females. Resulting chimeric animals were bred with transgenic mice expressing Flippase 1 (FLP1) to remove the FRT-flanked neomycin resistance gene and mice heterozygous for the floxed PECAM1 allele were bred with each other to obtain homozygous PECAM1 flox/flox offspring, which expressed PECAM-1 at normal levels and had no overt phenotype. PECAM1 flox/flox mice were bred with mice expressing Cre recombinase under the control of the SRY-box containing gene 2 (Sox2Cre) promoter to delete the floxed PECAM1 allele in offspring (Sox2Cre;PECAM1 del/WT ), which were crossbred to generate Sox2Cre; PECAM1 del/del offspring. Sox2Cre; PECAM1 del/del mice recapitulated the phenotype of conventional global PECAM-1 knockout mice. PECAM1 flox/flox mice will be useful for studying distinct roles of PECAM-1 in tissue specific contexts and to gain insights into the roles that PECAM-1 plays in blood and vascular cell function.
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Affiliation(s)
- Huiying Zhi
- Blood Research Institute, Versiti, Milwaukee, Wisconsin
| | | | - Guoping Fu
- Blood Research Institute, Versiti, Milwaukee, Wisconsin
| | - Debra K Newman
- Blood Research Institute, Versiti, Milwaukee, Wisconsin.,Department of Pharmacology & Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin.,Department of Microbiology and Molecular Genetics, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Peter J Newman
- Blood Research Institute, Versiti, Milwaukee, Wisconsin.,Department of Pharmacology & Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin.,Department of Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, Milwaukee, Wisconsin
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6
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Elder ASF, Bersten AD, Saccone GTP, Bonder CS, Dixon DL. Prevention and Amelioration of Rodent Ventilation-Induced Lung Injury with Either Prophylactic or Therapeutic feG Administration. Lung 2019; 197:671-680. [PMID: 31300872 DOI: 10.1007/s00408-019-00252-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 07/08/2019] [Indexed: 10/26/2022]
Abstract
PURPOSE Mechanical ventilation is a well-established therapy for patients with acute respiratory failure. However, up to 35% of mortality in acute respiratory distress syndrome may be attributed to ventilation-induced lung injury (VILI). We previously demonstrated the efficacy of the synthetic tripeptide feG for preventing and ameliorating acute pancreatitis-associated lung injury. However, as the mechanisms of induction of injury during mechanical ventilation may differ, we aimed to investigate the effect of feG in a rodent model of VILI, with or without secondary challenge, as a preventative treatment when administered before injury (prophylactic), or as a therapeutic treatment administered following initiation of injury (therapeutic). METHODS Lung injury was assessed following prophylactic or therapeutic intratracheal feG administration in a rodent model of ventilation-induced lung injury, with or without secondary intratracheal lipopolysaccharide challenge. RESULTS Prophylactic feG administration resulted in significant improvements in arterial blood oxygenation and respiratory mechanics, and decreased lung oedema, bronchoalveolar lavage protein concentration, histological tissue injury scores, blood vessel activation, bronchoalveolar lavage cell infiltration and lung myeloperoxidase activity in VILI, both with and without lipopolysaccharide. Therapeutic feG administration similarly ameliorated the severity of tissue damage and encouraged the resolution of injury. feG associated decreases in endothelial adhesion molecules may indicate a mechanism for these effects. CONCLUSIONS This study supports the potential for feG as a pharmacological agent in the prevention or treatment of lung injury associated with mechanical ventilation.
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Affiliation(s)
- Alison S F Elder
- Critical Care Medicine, College of Medicine and Public Health, Flinders University, GPO Box 2100, Adelaide, 5001, Australia
| | - Andrew D Bersten
- Critical Care Medicine, College of Medicine and Public Health, Flinders University, GPO Box 2100, Adelaide, 5001, Australia
- Intensive and Critical Care Unit, Flinders Medical Centre, Adelaide, Australia
| | - Gino T P Saccone
- Surgery, College of Medicine and Public Health, Flinders University, Adelaide, Australia
| | - Claudine S Bonder
- SA Pathology and the Department of Medicine, Centre for Cancer Biology, University of Adelaide, Adelaide, Australia
| | - Dani-Louise Dixon
- Critical Care Medicine, College of Medicine and Public Health, Flinders University, GPO Box 2100, Adelaide, 5001, Australia.
- Intensive and Critical Care Unit, Flinders Medical Centre, Adelaide, Australia.
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Development of A New Mouse Model for Intrahepatic Cholangiocellular Carcinoma: Accelerating Functions of Pecam-1. Cancers (Basel) 2019; 11:cancers11081045. [PMID: 31344919 PMCID: PMC6721446 DOI: 10.3390/cancers11081045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 07/12/2019] [Accepted: 07/15/2019] [Indexed: 01/09/2023] Open
Abstract
Due to the lack of suitable in-vivo models, the etiology of intrahepatic cholangiocellular carcinoma (ICC) is poorly understood. We previously showed the involvement of platelet endothelial cell adhesion molecule-1 (Pecam-1/CD31) in acute liver damage. Here, we developed a model of ICC using thioacetamide (TAA) in drinking water of wild-type (WT)-mice and Pecam-1-knock-out (KO)-mice. Gross inspection and microscopy revealed liver-cirrhosis and ICC in both groups after 22 weeks of TAA. The severity of cirrhosis and ICC (Ck-19-positive) was reduced in Pecam-1 KO mice (stage-4 cirrhosis in WT vs. stage-3 in KO mice). Tumor networks (accompanied by neutrophils) were predominantly located in portal areas, with signs of epithelial-to-mesenchymal transition (EMT). In serum, TAA induced an increase in hepatic damage markers, with lower levels in Pecam-1 null mice. With qPCR of liver, elevated expression of Pecam-1 mRNA was noted in WT mice, in addition to Icam-1, EpCam, cytokines, cMyc, and Mmp2. Thereby, levels of EpCAM, cytokines, cMyc, and Mmp2 were significantly lower in Pecam-1 null mice. Lipocalin-2 and Ccl5 were elevated significantly in both WT and Pecam-1 null mice after TAA administration. Also, EMT marker Wnt5a (not Twist-1) was increased in both groups after TAA. We present a highly reproducible mouse model for ICC and show protective effects of Pecam-1 deficiency.
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Nepomuceno R, Vallerini BDF, da Silva RL, Corbi SCT, Bastos ADS, Dos Santos RA, Takahashi CS, Orrico SRP, Scarel-Caminaga RM. Systemic expression of genes related to inflammation and lipid metabolism in patients with dyslipidemia, type 2 diabetes mellitus and chronic periodontitis. Diabetes Metab Syndr 2019; 13:2715-2722. [PMID: 31405698 DOI: 10.1016/j.dsx.2019.07.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 07/08/2019] [Indexed: 02/07/2023]
Abstract
Inflammatory diseases, as periodontal disease (PD), has been associated with disturbance of lipid and glycemic metabolisms, as demonstrated by the increasing of PD patients with type 2 diabetes mellitus (T2D) and/or dyslipidemia comorbidities. We aimed to investigate the expression of inflammation and lipid metabolism genes, and correlations among clinical and biochemical characteristics in normoglycemic or T2D patients with dyslipidemia and PD, in comparison with healthy individuals. Five groups of 30 individuals each (150 patients) were formed based upon T2D, dyslipidemic and periodontal status. Blood analyses of lipid and glycemic profiles were carried out, and the gene expression was assessed by RT-qPCR. The systemic expression of IL6, TNFA and LEP genes were significantly higher in T2D, dyslipidemia and PD patients, while the PECAM1 gene showed the opposite. Higher RETN levels were found in patients with T2D independently of their glycemic control status. There were positive correlations between: TNFA, LEP and RETN with worse periodontal parameters; IL6, TNFA, ADIPOR1, LEP and RETN with waist-to-hip ratio; glycemic parameters with RETN; total cholesterol and triglycerides with LEP expression. We conclude that pro-inflammatory cytokines were related with worse lipid, glycemic and periodontal parameters, reinforcing that a hyper-inflammatory status connects systemic and oral inflammatory diseases.
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Affiliation(s)
- Rafael Nepomuceno
- Department of Morphology, School of Dentistry at Araraquara, UNESP - São Paulo State University, Araraquara - SP, 14801-903, Brazil; Department of Diagnosis and Surgery, School of Dentistry at Araraquara, UNESP - São Paulo State University, Araraquara - SP, 14801-903, Brazil
| | - Bruna de F Vallerini
- Department of Morphology, School of Dentistry at Araraquara, UNESP - São Paulo State University, Araraquara - SP, 14801-903, Brazil
| | - Romerito L da Silva
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, UNESP - São Paulo State University, Araraquara - SP, 14801-903, Brazil
| | - Sâmia C T Corbi
- Department of Morphology, School of Dentistry at Araraquara, UNESP - São Paulo State University, Araraquara - SP, 14801-903, Brazil; Department of Diagnosis and Surgery, School of Dentistry at Araraquara, UNESP - São Paulo State University, Araraquara - SP, 14801-903, Brazil
| | - Alliny de S Bastos
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, UNESP - São Paulo State University, Araraquara - SP, 14801-903, Brazil
| | - Raquel A Dos Santos
- Postgraduate Program in Sciences of the University of Franca, Franca - SP, 14404-600, Brazil
| | - Catarina S Takahashi
- Department of Genetics, Faculty of Medicine of Ribeirão Preto and Department of Biology, FFCLRP, USP - University of São Paulo, Ribeirão Preto, SP, 14040-900, Brazil
| | - Silvana Regina P Orrico
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, UNESP - São Paulo State University, Araraquara - SP, 14801-903, Brazil
| | - Raquel M Scarel-Caminaga
- Department of Morphology, School of Dentistry at Araraquara, UNESP - São Paulo State University, Araraquara - SP, 14801-903, Brazil.
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Malik G, Wilting J, Hess CF, Ramadori G, Malik IA. PECAM-1 modulates liver damage induced by synergistic effects of TNF-α and irradiation. J Cell Mol Med 2019; 23:3336-3344. [PMID: 30761739 PMCID: PMC6484309 DOI: 10.1111/jcmm.14224] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 01/09/2019] [Accepted: 01/16/2019] [Indexed: 12/29/2022] Open
Abstract
The mechanisms of radiation‐induced liver damage are poorly understood. We investigated if tumour necrosis factor (TNF)‐α acts synergistically with irradiation, and how its activity is influenced by platelet endothelial cell adhesion molecule‐1 (PECAM‐1). We studied murine models of selective single‐dose (25 Gy) liver irradiation with and without TNF‐α application (2 μg/mouse; i.p.). In serum of wild‐type (wt)‐mice, irradiation induced a mild increase in hepatic damage marker aspartate aminotransferase (AST) in comparison to sham‐irradiated controls. AST levels further increased in mice treated with both irradiation and TNF‐α. Accordingly, elevated numbers of leucocytes and increased expression of the macrophage marker CD68 were observed in the liver of these mice. In parallel to hepatic damage, a consecutive decrease in expression of hepatic PECAM‐1 was found in mice that received radiation or TNF‐α treatment alone. The combination of radiation and TNF‐α induced an additional significant decline of PECAM‐1. Furthermore, increased expression of hepatic lipocalin‐2 (LCN‐2), a hepatoprotective protein, was detected at mRNA and protein levels after irradiation or TNF‐α treatment alone and the combination of both. Signal transducer and activator of transcription‐3 (STAT‐3) seems to be involved in the signalling cascade. To study the involvement of PECAM‐1 in hepatic damage more deeply, the liver of both wt‐ and PECAM‐1‐knock‐out‐mice were selectively irradiated (25 Gy). Thereby, ko‐mice showed higher liver damage as revealed by elevated AST levels, but also increased hepatoprotective LCN‐2 expression. Our studies show that TNF‐α has a pivotal role in radiation‐induced hepatic damage. It acts in concert with irradiation and its activity is modulated by PECAM‐1, which mediates pro‐ and anti‐inflammatory signalling.
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Affiliation(s)
- Gesa Malik
- Clinic for Gastroenterology and Endocrinology, University Medical Center Göttingen, Göttingen, Germany
| | - Jörg Wilting
- Department of Anatomy and Cell Biology, University Medical Center Göttingen, Göttingen, Germany
| | - Clemens Friedrich Hess
- Clinic for Radiotherapy and Radiooncology, University Medical Center Göttingen, Göttingen, Germany
| | - Giuliano Ramadori
- Clinic for Gastroenterology and Endocrinology, University Medical Center Göttingen, Göttingen, Germany
| | - Ihtzaz Ahmed Malik
- Clinic for Gastroenterology and Endocrinology, University Medical Center Göttingen, Göttingen, Germany.,Department of Anatomy and Cell Biology, University Medical Center Göttingen, Göttingen, Germany
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Fallon EA, Chun TT, Young WA, Gray C, Ayala A, Heffernan DS. Program Cell Death Receptor-1-Mediated Invariant Natural Killer T-Cell Control of Peritoneal Macrophage Modulates Survival in Neonatal Sepsis. Front Immunol 2017; 8:1469. [PMID: 29209308 PMCID: PMC5701916 DOI: 10.3389/fimmu.2017.01469] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 10/19/2017] [Indexed: 02/02/2023] Open
Abstract
We have shown that invariant natural killer T (iNKT) cells mediate sepsis-induced end-organ changes and immune responses, including macrophage bacterial phagocytosis, a finding regulated by the check point protein program cell death receptor-1 (PD-1). Furthermore, PD-1 mediates mortality in both adult and neonatal murine sepsis as well as in surgical patients. Given our previous findings, we hypothesize that iNKT cells will also modulate neonatal sepsis survival, and that this effect is regulated in part through PD-1. We utilized a polymicrobial intra-peritoneal cecal slurry (CS) sepsis model in wild type (WT), iNKT−/− or PD-1−/− 5–7 day old neonatal pups. Typically, tissues were harvested at 24 h for various bioassays/histology and, in some cases, survival was assessed for up to 7 days. Interestingly, similar to what we recently reported for PD-1−/− mice following CS, iNKT−/−-deficient animals exhibit a markedly improved survival vs. WT. Histologically, minor alterations in liver architectural, which were noted in WT pups, were attenuated in both iNKT−/− and PD-1−/− pups. Following CS, PECAM-1 expression was unchanged in the WT pups but increased in both iNKT−/− and PD-1−/− pups. In WT, following CS the emergence of a Ly6Clow subpopulation was noted among the influxed peritoneal macrophage population. Conversely, within iNKT−/− pups, there were fewer peritoneal macrophages and a greater percentage of Ly6Chigh macrophages. We show not only a key role for iNKT cells in affecting end-organ damage as well as alterations in phagocytes phenotypes in neonatal sepsis but that this iNKT cell mediated effect is driven by the central checkpoint protein PD-1.
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Affiliation(s)
- Eleanor A Fallon
- Division of Surgical Research, Department of Surgery, Brown University and Rhode Island Hospital, Providence, RI, United States
| | - Tristen T Chun
- Division of Surgical Research, Department of Surgery, Brown University and Rhode Island Hospital, Providence, RI, United States
| | - Whitney A Young
- Division of Surgical Research, Department of Surgery, Brown University and Rhode Island Hospital, Providence, RI, United States
| | - Chyna Gray
- Division of Surgical Research, Department of Surgery, Brown University and Rhode Island Hospital, Providence, RI, United States
| | - Alfred Ayala
- Division of Surgical Research, Department of Surgery, Brown University and Rhode Island Hospital, Providence, RI, United States
| | - Daithi S Heffernan
- Division of Surgical Research, Department of Surgery, Brown University and Rhode Island Hospital, Providence, RI, United States
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Song Y, Li Q, Long L, Zhang N, Liu Y. Asn563Ser polymorphism of CD31/PECAM-1 is associated with atherosclerotic cerebral infarction in a southern Han population. Neuropsychiatr Dis Treat 2015; 11:15-20. [PMID: 25565847 PMCID: PMC4274145 DOI: 10.2147/ndt.s75065] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND CD31, also called platelet endothelial cell adhesion molecule-1 (PECAM-1), is thought to play a role in the pathological mechanisms of atherosclerosis. Leu125Val polymorphism and elevated plasma levels of soluble PECAM-1 (sPECAM-1) were found to be associated with cerebral infarction. Our aim was to investigate the association between the Asn563Ser polymorphism of CD31/PECAM-1, plasma level of sPECAM-1, and the risk of atherosclerotic cerebral infarction (ACI) in the southern Han population of the People's Republic of China. SUBJECTS AND METHODS A total of 147 subjects with ACI and 114 controls were enrolled in the study. The Asn563Ser CD31/PECAM-1 polymorphism was detected using the polymerase chain reaction-restriction fragment length polymorphism method. The plasma spECAM-1 level was measured using the enzyme-linked immunosorbent assay method. RESULTS In this study, statistically significant differences in Asn563Ser genotype and allele distribution were found between the cases and controls (P<0.05). Furthermore, logistic regression analysis showed that the GG genotype is associated with increase in ACI risk (odds ratio =4.862, P<0.001). The plasma level of sPECAM-1 was associated with ACI (odds ratio =1.431, P=0.038). In both the ACI and the control groups, the plasma sPECAM-1 level in subjects with the GG genotype was higher than that in subjects carrying the AA or GA genotype (P<0.05). CONCLUSION Our study showed that the Asn563Ser polymorphism of CD31/PECAM-1 gene and elevated plasma sPECAM-1 level are related to ACI risk in the southern Han population of People's Republic of China.
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Affiliation(s)
- Yanmin Song
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan Province, People's Republic of China
| | - Qunfang Li
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan Province, People's Republic of China
| | - Lili Long
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan Province, People's Republic of China
| | - Ning Zhang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan Province, People's Republic of China
| | - Yunhai Liu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan Province, People's Republic of China
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Kato H, Kuriyama N, Duarte S, Clavien PA, Busuttil RW, Coito AJ. MMP-9 deficiency shelters endothelial PECAM-1 expression and enhances regeneration of steatotic livers after ischemia and reperfusion injury. J Hepatol 2014; 60:1032-9. [PMID: 24412604 PMCID: PMC3995823 DOI: 10.1016/j.jhep.2013.12.022] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 11/14/2013] [Accepted: 12/17/2013] [Indexed: 01/22/2023]
Abstract
BACKGROUND & AIMS Organ shortage has led to the use of steatotic livers in transplantation, despite their elevated susceptibility to ischemia/reperfusion injury (IRI). Matrix metalloproteinase-9 (MMP-9), an inducible gelatinase, is emerging as a central mediator of leukocyte traffic into inflamed tissues. However, its role in steatotic hepatic IRI has yet to be demonstrated. METHODS We examined the function of MMP-9 in mice fed with a high-fat diet (HFD), which developed approximately 50% hepatic steatosis, predominantly macrovesicular, prior to partial hepatic IRI. RESULTS The inability of MMP-9(-/-) deficient steatotic mice to express MMP-9 significantly protected these mice from liver IRI. Compared to fatty controls, MMP-9(-/-) steatotic livers showed significantly reduced leukocyte infiltration, proinflammatory cytokine expression, and liver necrosis. Loss of MMP-9 activity preserved platelet endothelial cell adhesion molecule-1 (PECAM-1) expression, a modulator of vascular integrity at the endothelial cell-cell junctions in steatotic livers after IRI. Using in vitro approaches, we show that targeted inhibition of MMP-9 sheltered the extracellular portion of PECAM-1 from proteolytic processing, and disrupted leukocyte migration across this junctional molecule. Moreover, the evaluation of distinct parameters of regeneration, proliferating cell nuclear antigen (PCNA) and histone H3 phosphorylation (pH3), provided evidence that hepatocyte progression into S phase and mitosis was notably enhanced in MMP-9(-/-) steatotic livers after IRI. CONCLUSIONS MMP-9 activity disrupts vascular integrity at least partially through a PECAM-1 dependent mechanism and interferes with regeneration of steatotic livers after IRI. Our novel findings establish MMP-9 as an important mediator of steatotic liver IRI.
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Affiliation(s)
- Hiroyuki Kato
- The Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Naohisa Kuriyama
- The Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Sergio Duarte
- The Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Pierre-Alain Clavien
- Swiss HPB (Hepato-Pancreato-Biliary) Center, Department of Surgery, University Hospital Zurich, 100 Raemistrasse, 8091 Zurich, Switzerland
| | - Ronald W. Busuttil
- The Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Ana J. Coito
- The Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA,Contact Information: Ana J. Coito, The Dumont-UCLA Transplant Center, 77-120 CHS, Box: 957054, Los Angeles, CA 90095-7054.
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Ouyang JS, Li YP, Chen CS, Chen JJ, Chen TK, Cai C, Yang L. Inhibition of lung tumor growth in nude mice by siRNA CD31 targeting PECAM-1. Oncol Lett 2014; 8:33-40. [PMID: 24959215 PMCID: PMC4063636 DOI: 10.3892/ol.2014.2091] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Accepted: 03/27/2014] [Indexed: 12/27/2022] Open
Abstract
Small interfering RNA (siRNA) provides a promising therapeutic approach in the silencing of disease-causing genes. In the present study, the use of 2′-O-methyl-modified siRNA-cluster of differentiation 31 (siRNACD31), with cationic liposome RNA interference (RNAi)-mate as a carrier, effectively silenced the platelet endothelial cell molecule 1 (PECAM-1) gene of murine hemangioendothelioma cells in vitro. In vivo, 2′-O-methyl-modified siRNACD31 carried by RNAi-mate was successfully delivered, targeting the PECAM-1 gene in the vasculature of nude mouse lung carcinoma xenografts. The growth of the lung carcinoma xenografts was inhibited by the 2′-O-methyl-modified siRNACD31 and RNAi-mate complexes, and the expression of the PECAM-1 protein was downregulated, with a simultaneous decrease in vascular endothelial growth factor (VEGF) protein in the lung carcinoma xenografts. 2′-O-methyl-modified siRNACD31-RNAi-mate complexes may provide a potential therapeutic strategy in lung carcinoma treatment. The effect of PECAM-1 on VEGF expression may possibly be attributed to the function of PECAM-1 signal transduction.
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Affiliation(s)
- Jin-Sheng Ouyang
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 32500, P.R. China
| | - Yu-Ping Li
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 32500, P.R. China
| | - Cheng-Shui Chen
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 32500, P.R. China
| | - Jun-Jie Chen
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 32500, P.R. China
| | - Tong-Ke Chen
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 32500, P.R. China
| | - Chang Cai
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 32500, P.R. China
| | - Li Yang
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 32500, P.R. China
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Platelet endothelial cell adhesion molecule 1 deficiency misguides venous thrombus resolution. Blood 2013; 122:3376-84. [DOI: 10.1182/blood-2013-04-499558] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Key Points
PECAM-1 deficiency misguides venous thrombus resolution. PECAM-1 cell surface shedding occurs at the site of venous thrombosis.
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Absence of platelet endothelial cell adhesion molecule 1, PECAM-1/CD31, in vivo increases resistance to Salmonella enterica serovar Typhimurium in mice. Infect Immun 2013; 81:1952-63. [PMID: 23509149 DOI: 10.1128/iai.01295-12] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
PECAM-1/CD31 is known to regulate inflammatory responses and exhibit pro- and anti-inflammatory functions. This study was designed to determine the functional role of PECAM-1 in susceptibility to murine primary in vivo infection with Salmonella enterica serovar Typhimurium and in in vitro inflammatory responses of peritoneal macrophages. Lectin profiling showed that cellular PECAM-1 and recombinant human PECAM-1-Ig chimera contain high levels of mannose sugars and N-acetylglucosamine. Consistent with this carbohydrate pattern, both recombinant human and murine PECAM-1-Ig chimeras were shown to bind S. Typhimurium in a dose-dependent manner in vitro. Using oral and fecal-oral transmission models of S. Typhimurium SL1344 infection, PECAM-1(-/-) mice were found to be more resistant to S. Typhimurium infection than wild-type (WT) C57BL/6 mice. While fecal shedding of S. Typhimurium was comparable in wild-type and PECAM-1(-/-) mice, the PECAM-1-deficient mice had lower bacterial loads in systemic organs such as liver, spleen, and mesenteric lymph nodes than WT mice, suggesting that extraintestinal dissemination was reduced in the absence of PECAM-1. This reduced bacterial load correlated with reduced tumor necrosis factor (TNF), interleukin-6 (IL-6), and monocyte chemoattractant protein (MCP) levels in sera of PECAM-1(-/-) mice. Following in vitro stimulation of macrophages with either whole S. Typhimurium, lipopolysaccharide (LPS) (Toll-like receptor 4 [TLR4] ligand), or poly(I·C) (TLR3 ligand), production of TNF and IL-6 by PECAM-1(-/-) macrophages was reduced. Together, these results suggest that PECAM-1 may have multiple functions in resistance to infection with S. Typhimurium, including binding to host cells, extraintestinal spread to deeper tissues, and regulation of inflammatory cytokine production by infected macrophages.
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