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Müller-Calleja N, Grunz K, Nguyen TS, Posma J, Pedrosa D, Meineck M, Hollerbach A, Braun J, Muth S, Schild H, Saar K, Hübner N, Krishnaswamy S, Royce J, Teyton L, Lemmermann N, Weinmann-Menke J, Lackner KJ, Ruf W. Targeting the tissue factor coagulation initiation complex prevents antiphospholipid antibody development. Blood 2024; 143:1167-1180. [PMID: 38142429 DOI: 10.1182/blood.2023022276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 12/08/2023] [Accepted: 12/13/2023] [Indexed: 12/26/2023] Open
Abstract
ABSTRACT Antiphospholipid antibodies (aPL) in primary or secondary antiphospholipid syndrome (APS) are a major cause for acquired thrombophilia, but specific interventions preventing autoimmune aPL development are an unmet clinical need. Although autoimmune aPL cross react with various coagulation regulatory proteins, lipid-reactive aPL, including those derived from patients with COVID-19, recognize the endolysosomal phospholipid lysobisphosphatidic acid presented by the cell surface-expressed endothelial protein C receptor. This specific recognition leads to complement-mediated activation of tissue factor (TF)-dependent proinflammatory signaling and thrombosis. Here, we show that specific inhibition of the TF coagulation initiation complex with nematode anticoagulant protein c2 (NAPc2) prevents the prothrombotic effects of aPL derived from patients with COVID-19 in mice and the aPL-induced proinflammatory and prothrombotic activation of monocytes. The induction of experimental APS is dependent on the nicotinamide adenine dinucleotide phosphate (NADPH) oxidase complex, and NAPc2 suppresses monocyte endosomal reactive oxygen species production requiring the TF cytoplasmic domain and interferon-α secretion from dendritic cells. Latent infection with murine cytomegalovirus causes TF cytoplasmic domain-dependent development of persistent aPL and circulating phospholipid-reactive B1 cells, which is prevented by short-term intervention with NAPc2 during acute viral infection. In addition, treatment of lupus prone MRL-lpr mice with NAPc2, but not with heparin, suppresses dendritic-cell activation in the spleen, aPL production and circulating phospholipid-reactive B1 cells, and attenuates lupus pathology. These data demonstrate a convergent TF-dependent mechanism of aPL development in latent viral infection and autoimmune disease and provide initial evidence that specific targeting of the TF initiation complex has therapeutic benefits beyond currently used clinical anticoagulant strategies.
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Affiliation(s)
- Nadine Müller-Calleja
- Center for Thrombosis and Hemostasis, Johannes Gutenberg University Medical Center, Mainz, Germany
- Institute of Clinical Chemistry and Laboratory Medicine, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Kristin Grunz
- Center for Thrombosis and Hemostasis, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - T Son Nguyen
- Center for Thrombosis and Hemostasis, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Jens Posma
- Center for Thrombosis and Hemostasis, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Denise Pedrosa
- Center for Thrombosis and Hemostasis, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Myriam Meineck
- Department of Medicine I, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Anne Hollerbach
- Institute of Clinical Chemistry and Laboratory Medicine, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Johannes Braun
- Center for Thrombosis and Hemostasis, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Sabine Muth
- Institute for Immunology, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Hansjörg Schild
- Institute for Immunology, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Kathrin Saar
- Max Delbrück Center for Molecular Medicine, Berlin, Germany
- Charite-Universitätsmedizin Berlin, Berlin, Germany
- German Center for Cardiovascular Research (DZHK), Partner site Berlin, Berlin, Germany
| | - Norbert Hübner
- Max Delbrück Center for Molecular Medicine, Berlin, Germany
- Charite-Universitätsmedizin Berlin, Berlin, Germany
- German Center for Cardiovascular Research (DZHK), Partner site Berlin, Berlin, Germany
| | - Sriram Krishnaswamy
- Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA
| | - Jennifer Royce
- Department of Immunology and Microbiology, Scripps Research, La Jolla, CA
| | - Luc Teyton
- Department of Immunology and Microbiology, Scripps Research, La Jolla, CA
| | - Niels Lemmermann
- Institute for Virology, Johannes Gutenberg University Medical Center, Mainz, Germany
- Institute of Virology, University Hospital Bonn, Bonn, Germany
| | - Julia Weinmann-Menke
- Department of Medicine I, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Karl J Lackner
- Institute of Clinical Chemistry and Laboratory Medicine, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Wolfram Ruf
- Center for Thrombosis and Hemostasis, Johannes Gutenberg University Medical Center, Mainz, Germany
- Department of Immunology and Microbiology, Scripps Research, La Jolla, CA
- German Center for Cardiovascular Research (DZHK), Partner site Rhein-Main, Mainz, Germany
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Lind SM, Sletten M, Hellenes M, Mathelier A, Tekpli X, Tinholt M, Iversen N. Coagulation factor V in breast cancer: a p53-regulated tumor suppressor and predictive marker for treatment response to chemotherapy. J Thromb Haemost 2024:S1538-7836(24)00106-5. [PMID: 38382738 DOI: 10.1016/j.jtha.2024.02.008] [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: 05/26/2023] [Revised: 01/22/2024] [Accepted: 02/07/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND Patients with cancer are at an increased risk of developing coagulation complications, and chemotherapy treatment increases the risk. Tumor progression is closely linked to the hemostatic system. Breast cancer tumors express coagulation factor V (FV), an essential factor in blood coagulation. The functional role of FV during treatment with chemotherapy is poorly understood and was explored in this study. OBJECTIVES We aimed to investigate the role of FV in breast cancer progression by exploring associations with treatment response, gene regulation, and the functional effects of FV. METHODS The receiver operating characteristic plotter was used to explore the predictive value of FV mRNA (F5) expression for treatment with FEC (5-fluorouracil, anthracycline, and cyclophosphamide). Breast cancer cohorts were analyzed to study treatment response to FEC. The effect of chemotherapy on F5 expression, the regulation of F5, and the functional effects of FV dependent and independent of chemotherapy were studied in breast cancer cell lines. RESULTS F5 tumor expression was significantly higher in responders to FEC than in nonresponders. In vitro experiments revealed that anthracycline treatment increased the expression of F5. Inhibition and knockdown of p53 reduced the anthracycline-induced F5 expression. Mutation of a p53 half-site (c.158+1541/158+1564) in a luciferase plasmid reduced luciferase activity, suggesting that p53 plays a role in regulating F5. FV overexpression increased apoptosis and reduced proliferation slightly during anthracycline treatment. CONCLUSION Our study identified F5 as a p53-regulated tumor suppressor candidate and a promising marker for response to chemotherapy. FV may have functional effects that are therapeutically relevant in breast cancer.
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Affiliation(s)
- Sara Marie Lind
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Marit Sletten
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Mona Hellenes
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Anthony Mathelier
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway; Centre for Molecular Medicine Norway, Nordic EMBL Partnership, University of Oslo, Oslo, Norway
| | - Xavier Tekpli
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Mari Tinholt
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Nina Iversen
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway.
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3
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Martinelli N, Moruzzi S, Udali S, Castagna A, Di Santo L, Ambrosani F, Baroni M, Pattini P, Pizzolo F, Ruzzenente A, Conci S, Grusse M, Campagnaro T, Van Dreden P, Guglielmi A, Bernardi F, Olivieri O, Friso S. Tissue factor pathway-related biomarkers in liver cancer: activated factor VII-antithrombin complex and tissue factor mRNA levels are associated with mortality. Res Pract Thromb Haemost 2024; 8:102310. [PMID: 38282902 PMCID: PMC10818084 DOI: 10.1016/j.rpth.2023.102310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 12/06/2023] [Accepted: 12/15/2023] [Indexed: 01/30/2024] Open
Abstract
Background Tissue factor (TF), the main initiator of the coagulation cascade, plays a role in cancer progression and prognosis. Activated factor VII-antithrombin complex (FVIIa-AT) is considered an indirect marker of TF exposure by reflecting TF-FVIIa interaction. Objectives To assess the link between FVIIa-AT plasma levels, TF messenger RNA (mRNA) expression, and survival in cancer. Methods TF pathway-related coagulation biomarkers were assessed in 136 patients with cancer (52 with hepatocellular carcinoma, 41 with cholangiocarcinoma, and 43 with colon cancer) undergoing surgical intervention with curative intent. TF mRNA expression analysis in neoplastic vs nonneoplastic liver tissues was evaluated in a subgroup of 91 patients with primary liver cancer. Results FVIIa-AT levels were higher in patients with cancer than in 136 sex- and age-matched cancer-free controls. In patients with cancer, high levels of FVIIa-AT and total TF pathway inhibitor were associated with an increased mortality risk after adjustment for confounders, but only FVIIa-AT remained a predictor of mortality by including both FVIIa-AT and total TF pathway inhibitor in Cox regression (hazard ratio, 2.80; 95% CI, 1.23-6.39; the highest vs the lowest quartile). This association remained significant even after adjustment for extracellular vesicle-associated TF-dependent procoagulant activity. In the subgroup of patients with primary liver cancer, patients with high TF mRNA levels had an increased mortality risk compared with that for those with low TF mRNA levels (hazard ratio, 1.92; 95% CI, 1.03-3.57), and there was a consistent correlation among high FVIIa-AT levels, high TF mRNA levels, and increased risk of mortality. Conclusion High FVIIa-AT levels may allow the identification of patients with cancer involving high TF expression and predict a higher mortality risk in liver cancer.
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Affiliation(s)
| | - Sara Moruzzi
- Department of Medicine, University of Verona, Verona, Italy
| | - Silvia Udali
- Department of Medicine, University of Verona, Verona, Italy
| | | | - Laura Di Santo
- Department of Medicine, University of Verona, Verona, Italy
| | | | - Marcello Baroni
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | | | | | | | - Simone Conci
- Department of Surgery, University of Verona, Verona, Italy
| | - Matthieu Grusse
- Clinical Research Department, Diagnostica Stago, Gennevilliers, France
| | | | | | | | - Francesco Bernardi
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
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Smadja DM, Rossi E, Haviari S, Bieche I, Cras A, Gaussem P. Thrombin receptor PAR1 silencing in endothelial colony-forming cells modifies stemness and vasculogenic properties. J Thromb Haemost 2023; 21:3640-3648. [PMID: 37678550 DOI: 10.1016/j.jtha.2023.08.029] [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: 07/03/2023] [Revised: 08/09/2023] [Accepted: 08/28/2023] [Indexed: 09/09/2023]
Abstract
BACKGROUND The involvement of thrombin receptor PAR1 in blood vessel development has been largely demonstrated in knockout mice; however, its implication in adult mouse angiogenesis seems very moderate. OBJECTIVES We aimed to explore the potential relationships between PAR1, stemness, and angiogenic properties of human endothelial colony-forming cells (ECFCs). METHODS AND RESULTS PAR1 activation on ECFCs using the selective PAR1-activating peptide induced a significant decrease in CD133 expression (RTQ-PCR analysis). In line, silencing of PAR1 gene expression with siRNA increased CD133 mRNA as well as intracellular CD133 protein expression. To confirm the link between CD133 and PAR1, we explored the association between PAR1 and CD133 levels in fast and slow fibroblasts prone to reprogramming. An imbalance between PAR1 and CD133 levels was evidenced, with a decreased expression of PAR1 in fast reprogramming fibroblasts expressing a high CD133 level. Regarding in vitro ECFC angiogenic properties, PAR1 silencing with specific siRNA induced cell proliferation evidenced by the overexpression of Ki67. However, it did not impact migration properties nor ECFC adhesion on smooth muscle cells or human arterial endothelial cells. In a mouse model of hind-limb ischemia, PAR1 silencing in ECFCs significantly increased postischemic revascularization compared to siCtrl-ECFCs along with a significant increase in cutaneous blood flows (P < .0001), microvessel density (P = .02), myofiber regeneration (P < .0001), and human endothelial cell incorporation in muscle (P < .0001). CONCLUSION In conclusion, our work describes for the first time a link between PAR1, stemness, and vasculogenesis in human ECFCs.
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Affiliation(s)
- David M Smadja
- Hematology Department, AP-HP, Georges Pompidou European Hospital, Paris, France; Université Paris-Cité, INSERM UMR-S 1140, Innovative Therapies in Haemostasis, Paris, France.
| | - Elisa Rossi
- Université Paris-Cité, INSERM UMR-S 1140, Innovative Therapies in Haemostasis, Paris, France
| | - Skerdi Haviari
- Université Paris-Cité, INSERM UMR-S 1137 (IAME), Paris, France; Département Épidémiologie Biostatistiques et Recherche Clinique, AP-HP, Hôpital Bichat, Paris, France
| | | | - Audrey Cras
- Université Paris-Cité, INSERM UMR-S 1140, Innovative Therapies in Haemostasis, Paris, France; Cell Therapy Unit, AP-HP, Saint Louis Hospital, Paris, France
| | - Pascale Gaussem
- Hematology Department, AP-HP, Georges Pompidou European Hospital, Paris, France; Université Paris-Cité, INSERM UMR-S 1140, Innovative Therapies in Haemostasis, Paris, France
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Jing H, Wu X, Xiang M, Wang C, Novakovic VA, Shi J. Microparticle Phosphatidylserine Mediates Coagulation: Involvement in Tumor Progression and Metastasis. Cancers (Basel) 2023; 15:cancers15071957. [PMID: 37046617 PMCID: PMC10093313 DOI: 10.3390/cancers15071957] [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: 01/31/2023] [Revised: 03/17/2023] [Accepted: 03/17/2023] [Indexed: 04/14/2023] Open
Abstract
Tumor progression and cancer metastasis has been linked to the release of microparticles (MPs), which are shed upon cell activation or apoptosis and display parental cell antigens, phospholipids such as phosphatidylserine (PS), and nucleic acids on their external surfaces. In this review, we highlight the biogenesis of MPs as well as the pathophysiological processes of PS externalization and its involvement in coagulation activation. We review the available evidence, suggesting that coagulation factors (mainly tissue factor, thrombin, and fibrin) assist in multiple steps of tumor dissemination, including epithelial-mesenchymal transition, extracellular matrix remodeling, immune escape, and tumor angiogenesis to support the formation of the pre-metastatic niche. Platelets are not just bystander cells in circulation but are functional players in primary tumor growth and metastasis. Tumor-induced platelet aggregation protects circulating tumor cells (CTCs) from the blood flow shear forces and immune cell attack while also promoting the binding of CTCs to endothelial cells and extravasation, which activates tumor invasion and sustains metastasis. Finally, in terms of therapy, lactadherin can inhibit coagulation by competing effectively with coagulation factors for PS binding sites and may similarly delay tumor progression. Furthermore, we also investigate the therapeutic potential of coagulation factor inhibitors within the context of cancer treatment. The development of multiple therapies targeting platelet activation and platelet-tumor cell interactions may not only reduce the lethal consequences of thrombosis but also impede tumor growth and spread.
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Affiliation(s)
- Haijiao Jing
- Department of Hematology, The First Hospital, Harbin Medical University, Harbin 150001, China
| | - Xiaoming Wu
- Department of Hematology, The First Hospital, Harbin Medical University, Harbin 150001, China
| | - Mengqi Xiang
- Department of Hematology, The First Hospital, Harbin Medical University, Harbin 150001, China
| | - Chengyue Wang
- Department of Hematology, The First Hospital, Harbin Medical University, Harbin 150001, China
| | - Valerie A Novakovic
- Department of Research, VA Boston Healthcare System, Harvard Medical School, Boston, MA 02132, USA
| | - Jialan Shi
- Department of Hematology, The First Hospital, Harbin Medical University, Harbin 150001, China
- Department of Research, VA Boston Healthcare System, Harvard Medical School, Boston, MA 02132, USA
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02132, USA
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6
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Protease-activated receptor 2 (PAR2)-targeting peptide derivatives for positron emission tomography (PET) imaging. Eur J Med Chem 2023; 246:114989. [PMID: 36527934 DOI: 10.1016/j.ejmech.2022.114989] [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: 08/17/2022] [Revised: 11/07/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022]
Abstract
The proteolytically-activated G protein-coupled receptor (GPCR) protease-activated receptor 2 (PAR2), is implicated in various cancers and inflammatory diseases. Synthetic ligands and in vitro imaging probes targeting this receptor have been developed with low nanomolar affinity, however, no in vivo imaging probes exist for PAR2. Here, we report the strategic design, synthesis, and biological evaluation of a series of novel 4-fluorobenzoylated PAR2-targeting peptides derived from 2f-LIGRLO-NH2 (2f-LI-) and Isox-Cha-Chg-Xaa-NH2 (Isox-) peptide families, where the 4-fluorobenzoyl moiety acts as the 19F-standard of an 18F-labeled probe for potential use in in vivo imaging. We found that several of the 4-fluorobenzoylated peptides from the 2f-LI-family exhibited PAR2 selectivity with moderate potency (EC50 = 151-252 nM), whereas several from the Isox-family exhibited PAR2 selectivity with high potency (EC50 = 13-42 nM). Our lead candidate, Isox-Cha-Chg-Ala-Arg-Dpr(4FB)-NH2 (EC50 = 13 nM), was successfully synthesized with fluorine-18 with a radiochemical yield of 37%, radiochemical purity of >98%, molar activity of 20 GBq/μmol, and an end of synthesis time of 125 min. Biodistribution studies and preliminary PET imaging of the tracer in mice showed predominantly renal clearance. This 18F-labeled tracer is the first reported PAR2 imaging agent with potential for use in vivo. Future work will explore the use of this tracer in cancer xenografts and inflammation models involving upregulation of PAR2 expression.
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7
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Peach CJ, Edgington-Mitchell LE, Bunnett NW, Schmidt BL. Protease-activated receptors in health and disease. Physiol Rev 2023; 103:717-785. [PMID: 35901239 PMCID: PMC9662810 DOI: 10.1152/physrev.00044.2021] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 07/08/2022] [Accepted: 07/10/2022] [Indexed: 11/22/2022] Open
Abstract
Proteases are signaling molecules that specifically control cellular functions by cleaving protease-activated receptors (PARs). The four known PARs are members of the large family of G protein-coupled receptors. These transmembrane receptors control most physiological and pathological processes and are the target of a large proportion of therapeutic drugs. Signaling proteases include enzymes from the circulation; from immune, inflammatory epithelial, and cancer cells; as well as from commensal and pathogenic bacteria. Advances in our understanding of the structure and function of PARs provide insights into how diverse proteases activate these receptors to regulate physiological and pathological processes in most tissues and organ systems. The realization that proteases and PARs are key mediators of disease, coupled with advances in understanding the atomic level structure of PARs and their mechanisms of signaling in subcellular microdomains, has spurred the development of antagonists, some of which have advanced to the clinic. Herein we review the discovery, structure, and function of this receptor system, highlight the contribution of PARs to homeostatic control, and discuss the potential of PAR antagonists for the treatment of major diseases.
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Affiliation(s)
- Chloe J Peach
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, New York
- Department of Neuroscience and Physiology and Neuroscience Institute, Grossman School of Medicine, New York University, New York, New York
| | - Laura E Edgington-Mitchell
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria, Australia
- Bluestone Center for Clinical Research, Department of Oral and Maxillofacial Surgery, New York University College of Dentistry, New York, New York
| | - Nigel W Bunnett
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, New York
- Department of Neuroscience and Physiology and Neuroscience Institute, Grossman School of Medicine, New York University, New York, New York
| | - Brian L Schmidt
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, New York
- Bluestone Center for Clinical Research, Department of Oral and Maxillofacial Surgery, New York University College of Dentistry, New York, New York
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8
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Cheng S, Wu D, Yuan L, Liu H, Ei-Seedi HR, Du M. Crassostrea gigas-Based Bioactive Peptide Protected Thrombin-Treated Endothelial Cells against Thrombosis and Cell Barrier Dysfunction. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:9664-9673. [PMID: 35900011 DOI: 10.1021/acs.jafc.2c02435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The activation of thrombin-treated endothelial cells resulted in disruption of the vascular tissues. A novel oyster-derived bioactive dodecapeptide (IEELEELEAER, P-2-CG) was reported to protect the human umbilical vein endothelial cells and their barrier function via the decrease of VE-cadherin disruption and the restoration of the F-actin arrangement. The promotion of the extrinsic pathway in this case triggers the release of tissue factors that occurs on the surface of the endothelial cells, thus changing the antithrombotic to prothrombotic. P-2-CG induced accordingly a prolongation of plasma clotting time and thrombin generation time, following the alteration of the antithrombotic phenotype. Furthermore, the antithrombotic activity of P-2-CG was also supported by the reduction of FXa and the inhibition of other factors release, for instance, inflammation factors, ROS, etc. In addition to its antithrombogenic role, P-2-CG displayed anti-inflammatory and antioxidant properties via the mitogen-activated protein kinase cascades and central signaling pathways as shown in an in vitro model of endothelial dysfunction.
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Affiliation(s)
- Shuzhen Cheng
- School of Food Science and Technology, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
- Division of Thrombosis and Hemostasis, Einthoven Laboratory for Vascular and Regenerative Medicine, Leiden University Medical Center, Leiden 2333 ZA, The Netherlands
| | - Di Wu
- School of Food Science and Technology, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Lushun Yuan
- The Einthoven Laboratory for Vascular and Regenerative Medicine, Department of Internal Medicine, Nephrology, Leiden University Medical Center, Leiden 2333 ZA, The Netherlands
| | - Hanxiong Liu
- School of Food Science and Technology, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Hesham R Ei-Seedi
- Pharmacognosy Group, Department of Medicinal Chemistry, Uppsala University, Biomedical Centre, Uppsala 75123, Sweden
| | - Ming Du
- School of Food Science and Technology, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
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9
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Bochenek ML, Gogiraju R, Großmann S, Krug J, Orth J, Reyda S, Georgiadis GS, Spronk H, Konstantinides S, Münzel T, Griffin JH, Wild PS, Espinola-Klein C, Ruf W, Schäfer K. EPCR-PAR1 biased signaling regulates perfusion recovery and neovascularization in peripheral ischemia. JCI Insight 2022; 7:157701. [PMID: 35700057 PMCID: PMC9431695 DOI: 10.1172/jci.insight.157701] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 06/08/2022] [Indexed: 11/17/2022] Open
Abstract
Blood clot formation initiates ischemic events, but coagulation roles during postischemic tissue repair are poorly understood. The endothelial protein C receptor (EPCR) regulates coagulation, as well as immune and vascular signaling, by protease activated receptors (PARs). Here, we show that endothelial EPCR-PAR1 signaling supports reperfusion and neovascularization in hindlimb ischemia in mice. Whereas deletion of PAR2 or PAR4 did not impair angiogenesis, EPCR and PAR1 deficiency or PAR1 resistance to cleavage by activated protein C caused markedly reduced postischemic reperfusion in vivo and angiogenesis in vitro. These findings were corroborated by biased PAR1 agonism in isolated primary endothelial cells. Loss of EPCR-PAR1 signaling upregulated hemoglobin expression and reduced endothelial nitric oxide (NO) bioavailability. Defective angiogenic sprouting was rescued by the NO donor DETA-NO, whereas NO scavenging increased hemoglobin and mesenchymal marker expression in human and mouse endothelial cells. Vascular specimens from patients with ischemic peripheral artery disease exhibited increased hemoglobin expression, and soluble EPCR and NO levels were reduced in plasma. Our data implicate endothelial EPCR-PAR1 signaling in the hypoxic response of endothelial cells and identify suppression of hemoglobin expression as an unexpected link between coagulation signaling, preservation of endothelial cell NO bioavailability, support of neovascularization, and prevention of fibrosis.
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Affiliation(s)
- Magdalena L Bochenek
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
| | | | - Stefanie Großmann
- Department of Cardiology, University Medical Center Mainz, Mainz, Germany
| | - Janina Krug
- Department of Cardiology, University Medical Center Mainz, Mainz, Germany
| | - Jennifer Orth
- Department of Cardiology, University Medical Center Mainz, Mainz, Germany
| | - Sabine Reyda
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
| | - George S Georgiadis
- Department of Vascular Surgery, University Hospital of Alexandroupolis, Alexandroupolis, Greece
| | - Henri Spronk
- CARIM School for Cardiovascular Disease, Maastricht University, Maastricht, Netherlands
| | | | - Thomas Münzel
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
| | - John H Griffin
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, United States of America
| | - Philipp S Wild
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
| | | | - Wolfram Ruf
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
| | - Katrin Schäfer
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
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10
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Mast AE, Ruf W. Regulation of coagulation by tissue factor pathway inhibitor: Implications for hemophilia therapy. J Thromb Haemost 2022; 20:1290-1300. [PMID: 35279938 PMCID: PMC9314982 DOI: 10.1111/jth.15697] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 02/08/2022] [Accepted: 03/07/2022] [Indexed: 11/27/2022]
Abstract
Tissue factor pathway inhibitor (TFPI) is an alternatively spliced anticoagulant protein that primarily dampens the initiation phase of coagulation before thrombin is generated. As such, TFPI's actions are localized to cells expressing TF and to sites of injury, where it is an important regulator of bleeding in hemophilia. The major splice isoforms TFPIα and TFPIβ localize to different sites within and surrounding the vasculature. Both forms directly inhibit factor Xa (FXa) via their Kunitz 2 domain and inhibit TF-FVIIa via their Kunitz 1 domain in a tight complex primarily localized to cells. By forming complexes localized to distinct cellular microenvironments and engaging additional cell surface receptors, TFPI alters cellular trafficking and signaling pathways driven by coagulation proteases of the TF pathway. TFPIα, which circulates in complex with FV and protein S, also serves an inhibitor of FXa independent of the TF initiation complex and prevents the formation of an active prothrombinase. This regulation of thrombin generation in the context of vessel injury is effectively blocked by antibodies to Kunitz 2 domain of TFPI and exploited as a therapy to restore efficient hemostasis in hemophilia.
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Affiliation(s)
- Alan E. Mast
- Versiti Blood Research InstituteMilwaukeeWisconsinUSA
| | - Wolfram Ruf
- Center for Thrombosis and HemostasisJohannes Gutenberg University Medical CenterMainzGermany
- Department of Immunology and MicrobiologyScripps ResearchLa JollaCaliforniaUSA
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11
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Das M, Ithychanda SS, Plow EF. Histone 2B Facilitates Plasminogen-Enhanced Endothelial Migration through Protease-Activated Receptor 1 (PAR1) and Protease-Activated Receptor 2 (PAR2). Biomolecules 2022; 12:biom12020211. [PMID: 35204713 PMCID: PMC8961594 DOI: 10.3390/biom12020211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/11/2022] [Accepted: 01/14/2022] [Indexed: 02/01/2023] Open
Abstract
Plasminogen and its multiple receptors have been implicated in the responses of many different cell types. Among these receptors, histone 2B (H2B) has been shown to play a prominent role in macrophage responses. The contribution of H2B to plasminogen-induced endothelial migration, an event relevant to wound healing and angiogenesis, is unknown. Plasminogen enhanced the migration of endothelial cells, which was inhibited by both Protease-Activated Receptor-1 (PAR1) and 2 (PAR2) antagonists. H2B was detected on viable endothelial cells of venous and arterial origin, and an antibody to H2B that blocks plasminogen binding also inhibited the plasminogen-dependent migration by these cells. The antibody blockade was as effective as PAR1 or PAR2 antagonists in inhibiting endothelial cell migration. In pull-down experiments, H2B formed a complex with both PAR1 and PAR2 but not β3 integrin, another receptor implicated in endothelial migration in the presence of plasminogen. H2B was found to be associated with clathrin adapator protein, AP2µ (clathrin AP2µ) and β-arrestin2, which are central to the internationalization/signaling machinery of the PARs. These associations with PAR1-clathrin adaptor AP2µ- and PAR2-β-arrestin2-dependent internalization/signaling pathways provide a mechanism to link plasminogen to responses such as wound healing and angiogenesis.
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12
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Tumor-associated macrophages (TAMs) depend on MMP1 for their cancer-promoting role. Cell Death Discov 2021; 7:343. [PMID: 34753916 PMCID: PMC8578434 DOI: 10.1038/s41420-021-00730-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 10/01/2021] [Accepted: 10/13/2021] [Indexed: 12/24/2022] Open
Abstract
The complex interaction between tumor-associated macrophages (TAMs) and tumor cells through several soluble factors and signaling is essential for colorectal cancer (CRC) progression. However, the molecular mechanism involved remains elusive. In this study, we demonstrated that MMP1 derived from TAMs markedly facilitated colon cancer cell proliferation via accelerating cell cycle transition from G0/G1 to S and G2/M phase. Moreover, exogenous MMP1 activated cdc25a/CDK4-cyclin D1 and p21/cdc2-cyclin B1 complexes through altering c-Myc and ETV4. Mechanistic studies indicated that inhibition of PAR1 or blockage of MAPK/Erk signaling eliminated the proliferation induced by exogenous MMP1 in vitro and in vivo. In addition, ETV4 could bind to the promoter of MMP1 and activate MMP1 transcription, which confirmed the MMP1/ETV4/MMP1 positive feedback. Altogether, our study identified a cytokine paracrine manner between colon cancer cells and TAMs. MMP1/PAR1/Erk1/2/ETV4 positive feedback loop may represent to be a therapeutic target and prognostic marker in CRC.
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13
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Chong SY, Zharkova O, Yatim SMJ, Wang X, Lim XC, Huang C, Tan CY, Jiang J, Ye L, Tan MS, Angeli V, Versteeg HH, Dewerchin M, Carmeliet P, Lam CS, Chan MY, de Kleijn DP, Wang JW. Tissue factor cytoplasmic domain exacerbates post-infarct left ventricular remodeling via orchestrating cardiac inflammation and angiogenesis. Am J Cancer Res 2021; 11:9243-9261. [PMID: 34646369 PMCID: PMC8490508 DOI: 10.7150/thno.63354] [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: 05/31/2021] [Accepted: 08/24/2021] [Indexed: 01/14/2023] Open
Abstract
The coagulation protein tissue factor (TF) regulates inflammation and angiogenesis via its cytoplasmic domain in infection, cancer and diabetes. While TF is highly abundant in the heart and is implicated in cardiac pathology, the contribution of its cytoplasmic domain to post-infarct myocardial injury and adverse left ventricular (LV) remodeling remains unknown. Methods: Myocardial infarction was induced in wild-type mice or mice lacking the TF cytoplasmic domain (TF∆CT) by occlusion of the left anterior descending coronary artery. Heart function was monitored with echocardiography. Heart tissue was collected at different time-points for histological, molecular and flow cytometry analysis. Results: Compared with wild-type mice, TF∆CT had a higher survival rate during a 28-day follow-up after myocardial infarction. Among surviving mice, TF∆CT mice had better cardiac function and less LV remodeling than wild-type mice. The overall improvement of post-infarct cardiac performance in TF∆CT mice, as revealed by speckle-tracking strain analysis, was attributed to reduced myocardial deformation in the peri-infarct region. Histological analysis demonstrated that TF∆CT hearts had in the infarct area greater proliferation of myofibroblasts and better scar formation. Compared with wild-type hearts, infarcted TF∆CT hearts showed less infiltration of proinflammatory cells with concomitant lower expression of protease-activated receptor-1 (PAR1) - Rac1 axis. In particular, infarcted TF∆CT hearts displayed markedly lower ratios of inflammatory M1 macrophages and reparative M2 macrophages (M1/M2). In vitro experiment with primary macrophages demonstrated that deletion of the TF cytoplasmic domain inhibited macrophage polarization toward the M1 phenotype. Furthermore, infarcted TF∆CT hearts presented markedly higher peri-infarct vessel density associated with enhanced endothelial cell proliferation and higher expression of PAR2 and PAR2-associated pro-angiogenic pathway factors. Finally, the overall cardioprotective effects observed in TF∆CT mice could be abolished by subcutaneously infusing a cocktail of PAR1-activating peptide and PAR2-inhibiting peptide via osmotic minipumps. Conclusions: Our findings demonstrate that the TF cytoplasmic domain exacerbates post-infarct cardiac injury and adverse LV remodeling via differential regulation of inflammation and angiogenesis. Targeted inhibition of the TF cytoplasmic domain-mediated intracellular signaling may ameliorate post-infarct LV remodeling without perturbing coagulation.
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14
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Kaji K, Kaji N, Hori M, Sakai K, Yonezawa T, Maeda S. Protease-Activated Receptor-2 Is Associated With Adverse Outcomes in Canine Mammary Carcinoma. Vet Pathol 2020; 58:53-62. [PMID: 33054598 DOI: 10.1177/0300985820963087] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Protease-activated receptor-2 (PAR2) is a G protein-coupled receptor that is activated by serine proteases. In humans, PAR2 is highly expressed in various cancers, including breast cancer, and is associated with cancer progression and metastasis. However, the expression and roles of PAR2 in canine mammary carcinoma remain unclear. The purpose of this study was to examine the expression of PAR2 in canine mammary carcinoma, the association between PAR2 expression and clinical characteristics, and the role of PAR2 in the metastatic phenotypes of tumor cells. Mammary carcinoma from 31 dogs and 10 normal mammary glands were included in this study, and used for immunohistochemical analysis of PAR2 expression. Normal mammary glands did not express PAR2. In contrast, mammary carcinomas showed PAR2 immunoreactivity in the cytoplasm, and its expression level varied between specimens from negative to strongly positive. The overall survival of dogs with high PAR2 expression was shorter than that of dogs with low PAR2 expression. Moreover, PAR2 expression level was associated with the presence of lymph node involvement, advanced clinical stage, and high histopathological grade. In vitro analyses revealed that a PAR2 agonist accelerated cell migration and invasion in a canine mammary carcinoma cell line. In addition, the PAR2 agonist induced epithelial-mesenchymal transition and actin polymerization. These results suggest that PAR2 expression plays a role in tumor progression and clinical outcomes in canine mammary carcinoma.
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Affiliation(s)
- Kenjiro Kaji
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, 13143The University of Tokyo, Japan
| | - Noriyuki Kaji
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, 13143The University of Tokyo, Japan
| | - Masatoshi Hori
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, 13143The University of Tokyo, Japan
| | - Kosei Sakai
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, 13143The University of Tokyo, Japan
| | - Tomohiro Yonezawa
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, 13143The University of Tokyo, Japan
| | - Shingo Maeda
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, 13143The University of Tokyo, Japan
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15
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Unruh D, Horbinski C. Beyond thrombosis: the impact of tissue factor signaling in cancer. J Hematol Oncol 2020; 13:93. [PMID: 32665005 PMCID: PMC7362520 DOI: 10.1186/s13045-020-00932-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 07/02/2020] [Indexed: 12/15/2022] Open
Abstract
Tissue factor (TF) is the primary initiator of the coagulation cascade, though its effects extend well beyond hemostasis. When TF binds to Factor VII, the resulting TF:FVIIa complex can proteolytically cleave transmembrane G protein-coupled protease-activated receptors (PARs). In addition to activating PARs, TF:FVIIa complex can also activate receptor tyrosine kinases (RTKs) and integrins. These signaling pathways are utilized by tumors to increase cell proliferation, angiogenesis, metastasis, and cancer stem-like cell maintenance. Herein, we review in detail the regulation of TF expression, mechanisms of TF signaling, their pathological consequences, and how it is being targeted in experimental cancer therapeutics.
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Affiliation(s)
- Dusten Unruh
- Department of Neurological Surgery, Northwestern University, 303 East Superior St, Chicago, IL, 60611, USA.
| | - Craig Horbinski
- Department of Neurological Surgery, Northwestern University, 303 East Superior St, Chicago, IL, 60611, USA.,Department of Pathology, Northwestern University, Chicago, IL, 60611, USA
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16
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Protease-activated receptor 2 contributes to placental development and fetal growth in mice. Thromb Res 2020; 193:173-179. [PMID: 32717642 DOI: 10.1016/j.thromres.2020.06.039] [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] [Received: 01/20/2020] [Revised: 06/17/2020] [Accepted: 06/23/2020] [Indexed: 11/20/2022]
Abstract
BACKGROUND Protease-activated receptor 2 (PAR2) is activated by serine proteases such as coagulation tissue factor/VIIa complex, factor Xa or trypsin and is pro-angiogenic in several disease models. Impaired angiogenesis in placenta causes placental dysfunction and fetal growth restriction. PAR2 is expressed in the placenta trophoblast. However, the role of PAR2 in pregnancy remains unknown. OBJECTIVE The present study aimed to examine the role of PAR2 in placental development and fetal growth using a murine model. METHODS PAR2-/- or PAR2+/+ mice in the ICR background were used. Female PAR2-/- mice were mated with male PAR2-/- mice, and female PAR2+/+ mice were mated with male PAR2+/+ mice to obtain PAR2-/- and PAR2+/+ fetuses, respectively. The day a virginal plug was observed in the morning was determined as 0.5-day post-coitum (dpc). Pregnant mice were sacrificed on 13.5 or 18.5 dpc to collect samples. RESULTS A deficiency of PAR2 significantly reduced the fetal and placental weight and impaired placental labyrinth development in mice on 18.5 dpc. Collagen IV expression in placenta labyrinth was smaller in PAR2 knockout mice compared to that of wild-type mice. A deficiency of PAR2 also reduced the expression levels of genes related to angiogenesis and coagulation in placenta. CONCLUSION Our data suggest that PAR2 is required for fetal growth and angiogenesis in the placenta and is thus important for a normal pregnancy.
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17
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Tissue factor pathway inhibitor primes monocytes for antiphospholipid antibody-induced thrombosis. Blood 2019; 134:1119-1131. [PMID: 31434703 DOI: 10.1182/blood.2019001530] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 08/06/2019] [Indexed: 12/28/2022] Open
Abstract
Antiphospholipid antibodies (aPLs) with complex lipid and/or protein reactivities cause complement-dependent thrombosis and pregnancy complications. Although cross-reactivities with coagulation regulatory proteins contribute to the risk for developing thrombosis in patients with antiphospholipid syndrome, the majority of pathogenic aPLs retain reactivity with membrane lipid components and rapidly induce reactive oxygen species-dependent proinflammatory signaling and tissue factor (TF) procoagulant activation. Here, we show that lipid-reactive aPLs activate a common species-conserved TF signaling pathway. aPLs dissociate an inhibited TF coagulation initiation complex on the cell surface of monocytes, thereby liberating factor Xa for thrombin generation and protease activated receptor 1/2 heterodimer signaling. In addition to proteolytic signaling, aPLs promote complement- and protein disulfide isomerase-dependent TF-integrin β1 trafficking that translocates aPLs and NADPH oxidase to the endosome. Cell surface TF pathway inhibitor (TFPI) synthesized by monocytes is required for TF inhibition, and disabling TFPI prevents aPL signaling, indicating a paradoxical prothrombotic role for TFPI. Myeloid cell-specific TFPI inactivation has no effect on models of arterial or venous thrombus development, but remarkably prevents experimental aPL-induced thrombosis in mice. Thus, the physiological control of TF primes monocytes for rapid aPL pathogenic signaling and thrombosis amplification in an unexpected crosstalk between complement activation and coagulation signaling.
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18
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LeSarge JC, Thibeault P, Milne M, Ramachandran R, Luyt LG. High Affinity Fluorescent Probe for Proteinase-Activated Receptor 2 (PAR2). ACS Med Chem Lett 2019; 10:1045-1050. [PMID: 31312406 DOI: 10.1021/acsmedchemlett.9b00094] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 06/06/2019] [Indexed: 12/22/2022] Open
Abstract
PAR2 is a proteolytically activated G protein-coupled receptor (GPCR) that is implicated in various cancers and inflammatory diseases. Ligands with low nanomolar affinity for PAR2 have been developed, but there is a paucity of research on the development of PAR2-targeting imaging probes. Here, we report the development of seven novel PAR2-targeting compounds. Four of these compounds are highly potent and selective PAR2-targeting peptides (EC50 = 10 to 23 nM) that have a primary amine handle available for facile conjugation to various imaging components. We describe a peptide of the sequence Isox-Cha-Chg-ARK(Sulfo-Cy5)-NH2 as the most potent and highest affinity PAR2-selective fluorescent probe reported to date (EC50 = 16 nM, K D = 38 nM). This compound has a greater than 10-fold increase in potency and binding affinity for PAR2 compared to the leading previously reported probe and is conjugated to a red-shifted fluorophore, enabling in vitro and in vivo studies.
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Affiliation(s)
| | | | - Mark Milne
- London Regional Cancer Program, Lawson Health Research Institute, 800 Commissioners Road East, London, Ontario N6A 5W9, Canada
| | | | - Leonard G. Luyt
- London Regional Cancer Program, Lawson Health Research Institute, 800 Commissioners Road East, London, Ontario N6A 5W9, Canada
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19
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Komori M, Ago T, Wakisaka Y, Nakamura K, Tachibana M, Yoshikawa Y, Shibahara T, Yamanaka K, Kuroda J, Kitazono T. Early initiation of a factor Xa inhibitor can attenuate tissue repair and neurorestoration after middle cerebral artery occlusion. Brain Res 2019; 1718:201-211. [PMID: 31103522 DOI: 10.1016/j.brainres.2019.05.020] [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] [Received: 02/19/2019] [Revised: 05/14/2019] [Accepted: 05/16/2019] [Indexed: 10/26/2022]
Abstract
The timing of anti-coagulation therapy initiation after acute cardioembolic stroke remains controversial. We investigated the effects of post-stroke administration of a factor Xa inhibitor in mice, focusing on tissue repair and functional restoration outcomes. We initiated administration of rivaroxaban, a Xa inhibitor, immediately after permanent distal middle cerebral artery occlusion (pMCAO) in CB-17 mice harboring few leptomeningeal anastomoses at baseline. Rivaroxaban initiated immediately after pMCAO hindered the recovery of blood flow in ischemic areas by inhibiting leptomeningeal anastomosis development, and led to impaired restoration of neurologic functions with less extensive peri-infarct astrogliosis. Within infarct areas, angiogenesis and fibrotic responses were attenuated in rivaroxaban-fed mice. Furthermore, inflammatory responses, including the accumulation of neutrophils and monocytes/macrophages, local secretion of pro-inflammatory cytokines, and breakdown of the blood-brain barrier, were enhanced in infarct areas in mice treated immediately with rivaroxaban following pMCAO. The detrimental effects were not found when rivaroxaban was initiated after transient MCAO or on day 7 after pMCAO. Collectively, early post-stroke initiation of a factor Xa inhibitor may suppress leptomeningeal anastomosis development and blood flow recovery in ischemic areas, thereby resulting in attenuated tissue repair and functional restoration unless occluded large arteries are successfully recanalized.
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Affiliation(s)
- Motohiro Komori
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Tetsuro Ago
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
| | - Yoshinobu Wakisaka
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Kuniyuki Nakamura
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Masaki Tachibana
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Yoji Yoshikawa
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Tomoya Shibahara
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Kei Yamanaka
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Junya Kuroda
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Takanari Kitazono
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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20
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Vähätupa M, Nättinen J, Jylhä A, Aapola U, Kataja M, Kööbi P, Järvinen TAH, Uusitalo H, Uusitalo-Järvinen H. SWATH-MS Proteomic Analysis of Oxygen-Induced Retinopathy Reveals Novel Potential Therapeutic Targets. Invest Ophthalmol Vis Sci 2019; 59:3294-3306. [PMID: 30025079 DOI: 10.1167/iovs.18-23831] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose Oxygen-induced retinopathy (OIR) is the most widely used model for ischemic retinopathies such as retinopathy of prematurity (ROP), proliferative diabetic retinopathy (PDR), and retinal vein occlusion (RVO). The purpose of this study was to perform the most comprehensive characterization of OIR by a recently developed technique, sequential window acquisition of all theoretical mass spectra (SWATH-MS) proteomics. Methods Control and OIR retina samples collected from various time points were subjected to SWATH-MS and detailed data analysis. Immunohistochemistry from mouse retinas as well as neovascular membranes from human PDR and RVO patients were used for the detection of the localization of the proteins showing altered expression in the retina and to address their relevance to human ischemic retinopathies. Results We report the most extensive proteomic profiling of OIR to date by quantifying almost 3000 unique proteins and their expression differences between control and OIR retinas. Crystallins were the most prominent proteins induced by hypoxia in the retina, while angiogenesis related proteins such as Filamin A and nonmuscle myosin IIA stand out at the peak of angiogenesis. Majority of the changes in protein expression return to normal at P42, but there is evidence to suggest that proteins involved in neurotransmission remain at reduced level. Conclusions The results reveal new potential therapeutic targets to address hypoxia-induced pathological angiogenesis taking place in number of retinal diseases. The extensive proteomic profiling combined with pathway analysis also identifies novel molecular networks that could contribute to the pathogenesis of retinal diseases.
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Affiliation(s)
- Maria Vähätupa
- Faculty of Medicine & Life Sciences, University of Tampere, Tampere, Finland
| | - Janika Nättinen
- Faculty of Medicine & Life Sciences, University of Tampere, Tampere, Finland.,The Center for Proteomics and Personalized Medicine, Tampere, Finland
| | - Antti Jylhä
- Faculty of Medicine & Life Sciences, University of Tampere, Tampere, Finland.,The Center for Proteomics and Personalized Medicine, Tampere, Finland
| | - Ulla Aapola
- Faculty of Medicine & Life Sciences, University of Tampere, Tampere, Finland.,The Center for Proteomics and Personalized Medicine, Tampere, Finland
| | - Marko Kataja
- Eye Centre, Tampere University Hospital, Tampere, Finland
| | - Peeter Kööbi
- Faculty of Medicine & Life Sciences, University of Tampere, Tampere, Finland.,Eye Centre, Tampere University Hospital, Tampere, Finland
| | - Tero A H Järvinen
- Faculty of Medicine & Life Sciences, University of Tampere, Tampere, Finland.,Department of Musculoskeletal Disorders, Tampere University Hospital, Tampere, Finland
| | - Hannu Uusitalo
- Faculty of Medicine & Life Sciences, University of Tampere, Tampere, Finland.,The Center for Proteomics and Personalized Medicine, Tampere, Finland.,Eye Centre, Tampere University Hospital, Tampere, Finland
| | - Hannele Uusitalo-Järvinen
- Faculty of Medicine & Life Sciences, University of Tampere, Tampere, Finland.,Eye Centre, Tampere University Hospital, Tampere, Finland
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21
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Sutherland MR, Simon AY, Shanina I, Horwitz MS, Ruf W, Pryzdial ELG. Virus envelope tissue factor promotes infection in mice. J Thromb Haemost 2019; 17:482-491. [PMID: 30659719 PMCID: PMC6397068 DOI: 10.1111/jth.14389] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Indexed: 01/04/2023]
Abstract
Essentials The coagulation initiator, tissue factor (TF), is on the herpes simplex virus 1 (HSV1) surface. HSV1 surface TF was examined in mice as an antiviral target since it enhances infection in vitro. HSV1 surface TF facilitated infection of all organs evaluated and anticoagulants were antiviral. Protease activated receptor 2 inhibited infection in vivo and its pre-activation was antiviral. SUMMARY: Background Tissue factor (TF) is the essential cell surface initiator of coagulation, and mediates cell signaling through protease-activated receptor (PAR) 2. Having a diverse cellular distribution, TF is involved in many biological pathways and pathologies. Our earlier work identified host cell-derived TF on the envelope covering several viruses, and showed its involvement in enhanced cell infection in vitro. Objective In the current study, we evaluated the in vivo effects of virus surface TF on infection and on the related modulator of infection PAR2. Methods With the use of herpes simplex virus type 1 (HSV1) as a model enveloped virus, purified HSV1 was generated with or without envelope TF through propagation in a TF-inducible cell line. Infection was studied after intravenous inoculation of BALB/c, C57BL/6J or C57BL/6J PAR2 knockout mice with 5 × 105 plaque-forming units of HSV1, mimicking viremia. Three days after inoculation, organs were processed, and virus was quantified with plaque-forming assays and quantitative real-time PCR. Results Infection of brain, lung, heart, spinal cord and liver by HSV1 required viral TF. Demonstrating promise as a therapeutic target, virus-specific anti-TF mAbs or small-molecule inhibitors of coagulation inhibited infection. PAR2 modulates HSV1 in vivo as demonstrated with PAR2 knockout mice and PAR2 agonist peptide. Conclusion TF is a constituent of many permissive host cell types. Therefore, the results presented here may explain why many viruses are correlated with hemostatic abnormalities, and indicate that TF is a novel pan-specific envelope antiviral target.
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MESH Headings
- Animals
- Anticoagulants/pharmacology
- Antiviral Agents/pharmacology
- Disease Models, Animal
- Female
- Herpes Simplex/blood
- Herpes Simplex/drug therapy
- Herpes Simplex/immunology
- Herpes Simplex/virology
- Herpesvirus 1, Human/drug effects
- Herpesvirus 1, Human/immunology
- Herpesvirus 1, Human/metabolism
- Host-Pathogen Interactions
- Injections, Intravenous
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Knockout
- Receptor, PAR-2/genetics
- Receptor, PAR-2/metabolism
- Th1 Cells/immunology
- Th1 Cells/virology
- Thromboplastin/administration & dosage
- Thromboplastin/metabolism
- Viral Envelope Proteins/administration & dosage
- Viral Envelope Proteins/metabolism
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Affiliation(s)
- Michael R Sutherland
- Canadian Blood Services, Center for Innovation, Vancouver, Canada
- Centre for Blood Research and Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
| | - Ayo Y Simon
- Canadian Blood Services, Center for Innovation, Vancouver, Canada
- Centre for Blood Research and Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
- African Centre of Excellence on Neglected Tropical Diseases and Forensic Biotechnology and Veterinary Teaching Hospital, Ahmadu Bello University, Zaria, Nigeria
- Preclinical Research and Development, Emergent BioSolutions, Winnipeg, Manitoba, Canada
| | - Iryna Shanina
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, Canada
| | - Marc S Horwitz
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, Canada
| | - Wolfram Ruf
- Immunology and Microbial Sciences, The Scripps Research Institute, La Jolla, CA, USA
- Center for Thrombosis and Hemostasis, University Medical Center, Mainz, Germany
| | - Edward L G Pryzdial
- Canadian Blood Services, Center for Innovation, Vancouver, Canada
- Centre for Blood Research and Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
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22
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Protease-activated receptor 2 protects against VEGF inhibitor-induced glomerular endothelial and podocyte injury. Sci Rep 2019; 9:2986. [PMID: 30814628 PMCID: PMC6393426 DOI: 10.1038/s41598-019-39914-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 01/31/2019] [Indexed: 02/02/2023] Open
Abstract
Vascular endothelial growth factor (VEGF) inhibitors cause glomerular injury. We have recently shown that activation of protease-activated receptor 2 (PAR2) by factor Xa exacerbated diabetic kidney disease. However, the role of PAR2 in glomerular injury induced by VEGF blockade is not known. Herein, we investigated the effect of the lack of PAR2 on VEGF inhibitor-induced glomerular injury. Although administering an anti-VEGF antibody by itself did not show renal phenotype in wild type mice, its administration to mice lacking endothelial nitric oxide synthase (eNOS) caused glomerular injury. Different from what we expected, administration of an anti-VEGF antibody in mice lacking PAR2 and eNOS exacerbated albuminuria and reduced the expression levels of CD31, pro-angiogenic VEGF, and angiogenesis-related chemokines in their kidneys. Podocyte injury was also evident in this model of mice lacking PAR2. Our results suggest that PAR2 is protective against VEGF inhibitor-induced glomerular endothelial and podocyte injury.
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23
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Girard TJ, Grunz K, Lasky NM, Malone JP, Broze GJ. Re-evaluation of mouse tissue factor pathway inhibitor and comparison of mouse and human tissue factor pathway inhibitor physiology. J Thromb Haemost 2018; 16:2246-2257. [PMID: 30194803 PMCID: PMC6235150 DOI: 10.1111/jth.14288] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Indexed: 11/30/2022]
Abstract
Essentials Mouse models are often used to define roles of tissue factor pathway inhibitor (TFPI) in man. TFPI isoform-specific KOs reveal unexpected differences between mouse and human TFPI physiology. Mouse plasma contains 20 times more TFPI than man, derived from TFPIγ, a form not found in man. TFPIγ null mice, expressing only TFPI isoforms α and β, may better reflect the human situation. SUMMARY: Background Mouse models can provide insight into the pathophysiology of human thrombosis and hemostasis. Tissue factor pathway inhibitor (TFPI) regulates coagulation through protein S (PS)-enhanced factor (F) Xa inhibition and FXa-dependent inhibition of FVIIa/tissue factor (TF) activity. TFPI is expressed as isoforms α and β in man, and α, β and γ in the mouse. Objective Assess the reliability of extending TFPI-related studies in mice to humans. Method Compare mouse and human TFPI physiology using a variety of methods. Results Mouse TFPI and human TFPI are similar in regard to: (i) the mechanisms for FVIIa/TF and FXa inhibition; (ii) TFPIα is a soluble form and TFPIβ is glycosyl phosphatidyl inositol (GPI) membrane anchored; (iii) the predominant circulating form of TFPI in plasma is lipoprotein-associated; (iv) low levels of TFPIα circulate in plasma and increase following heparin treatment; and (v) TFPIα is the isoform in platelets. They differ in that: (i) mouse TFPI circulates at a ~20-fold higher concentration; (ii) mouse lines with isolated isoform deletions show this circulating mouse TFPI is derived from TFPIγ; (iii) sequences homologous to the mouse TFPIγ exon are present in many species, including man, but in primates are unfavorable for splicing; and (iv) tandem mass spectrometry (MS/MS) detects sequences for TFPI isoforms α and β in human plasma and α and γ in mouse plasma. Conclusion To dissect the pathophysiological roles of human TFPIα and TFPIβ, studies in TFPIγ null mice, expressing only α and β, only α or only β should better reflect the human situation.
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Affiliation(s)
- Thomas J. Girard
- Division of Hematology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Kristin Grunz
- Division of Hematology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Nina M. Lasky
- Division of Hematology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - James P. Malone
- Proteomics Core Laboratory, Institute of Clinical and Translational Sciences, Washington University School of Medicine, St. Louis, MO
| | - George J. Broze
- Division of Hematology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
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Zelaya H, Rothmeier AS, Ruf W. Tissue factor at the crossroad of coagulation and cell signaling. J Thromb Haemost 2018; 16:1941-1952. [PMID: 30030891 DOI: 10.1111/jth.14246] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Indexed: 12/16/2022]
Abstract
The tissue factor (TF) pathway plays a central role in hemostasis and thrombo-inflammatory diseases. Although structure-function relationships of the TF initiation complex are elucidated, new facets of the dynamic regulation of TF's activities in cells continue to emerge. Cellular pathways that render TF non-coagulant participate in signaling of distinct TF complexes with associated proteases through the protease-activated receptor (PAR) family of G protein-coupled receptors. Additional co-receptors, including the endothelial protein C receptor (EPCR) and integrins, confer signaling specificity by directing subcellular localization and trafficking. We here review how TF is switched between its role in coagulation and cell signaling through thiol-disulfide exchange reactions in the context of physiologically relevant lipid microdomains. Inflammatory mediators, including reactive oxygen species, activators of the inflammasome, and the complement cascade play pivotal roles in TF procoagulant activation on monocytes, macrophages and endothelial cells. We furthermore discuss how TF, intracellular ligands, co-receptors and associated proteases are integrated in PAR-dependent cell signaling pathways controlling innate immunity, cancer and metabolic inflammation. Knowledge of the precise interactions of TF in coagulation and cell signaling is important for understanding effects of new anticoagulants beyond thrombosis and identification of new applications of these drugs for potential additional therapeutic benefits.
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Affiliation(s)
- H Zelaya
- Center for Thrombosis and Hemostasis, Johannes Gutenberg University Medical Center, Mainz, Germany
- National Scientific and Technical Research Council (CONICET) and National University of Tucumán, Tucumán, Argentina
| | - A S Rothmeier
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA
| | - W Ruf
- Center for Thrombosis and Hemostasis, Johannes Gutenberg University Medical Center, Mainz, Germany
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA
- German Center for Cardiovascular Research (DZHK), Partnersite Rhein-Main, Mainz, Germany
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25
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Cimmino G, Cirillo P. Tissue factor: newer concepts in thrombosis and its role beyond thrombosis and hemostasis. Cardiovasc Diagn Ther 2018; 8:581-593. [PMID: 30498683 DOI: 10.21037/cdt.2018.10.14] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
For many years, the attention on tissue factor (TF) in human pathophysiology has been limited to its role as initiator of extrinsic coagulation pathway. Moreover, it was described as a glycoprotein located in several tissue including vascular wall and atherosclerotic plaque. However, in the last two decades, the discovery that TF circulates in the blood as cell-associated protein, microparticles (MPs) bound and as soluble form, is changing this old vessel-wall TF dogma. Moreover, it has been reported that TF is expressed by different cell types, even T lymphocytes and platelets, and different pathological conditions, such as acute and chronic inflammatory status, and cancer, may enhance its expression and activity. Thus, recent advances in the biology of TF have clearly indicated that beyond its known effects on blood coagulation, it is a "true surface receptor" involved in many intracellular signaling, cell-survival, gene and protein expression, proliferation, angiogenesis and tumor metastasis. Finally, therapeutic modulation of TF expression and/or activity has been tested with controversial results. This report, starting from the old point of view about TF as initiator of extrinsic coagulation pathway, briefly illustrates the more recent concepts about TF and thrombosis and finally gives an overview about its role beyond thrombosis and haemostasis focusing on the different intracellular mechanisms triggered by its activation and potentially involved in atherosclerosis.
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Affiliation(s)
- Giovanni Cimmino
- Department of Translational Medical Science, Division of Cardiology, University of Campania "Luigi Vanvitelli" Naples, Italy
| | - Plinio Cirillo
- Department of Advance Biomedical Science, Division of Cardiology, University of Naples "Federico II", Naples, Italy
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26
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The dual role of mast cells in tumor fate. Cancer Lett 2018; 433:252-258. [PMID: 29981810 DOI: 10.1016/j.canlet.2018.07.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 06/29/2018] [Accepted: 07/03/2018] [Indexed: 02/06/2023]
Abstract
The exact role of mast cells in tumor growth is not clear and multifaceted. In some cases, mast cells stimulate while in others inhibit this process. This dual role may be explained to some extent by the huge number of bioactive molecules stored in mast cell granules, as well as differences between tumor microenvironment, tumor type, and tumor phase of development.
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27
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Asosingh K, Weiss K, Queisser K, Wanner N, Yin M, Aronica M, Erzurum S. Endothelial cells in the innate response to allergens and initiation of atopic asthma. J Clin Invest 2018; 128:3116-3128. [PMID: 29911993 DOI: 10.1172/jci97720] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 05/01/2018] [Indexed: 01/03/2023] Open
Abstract
Protease-activated receptor 2 (PAR-2), an airway epithelial pattern recognition receptor (PRR), participates in the genesis of house dust mite-induced (HDM-induced) asthma. Here, we hypothesized that lung endothelial cells and proangiogenic hematopoietic progenitor cells (PACs) that express high levels of PAR-2 contribute to the initiation of atopic asthma. HDM extract (HDME) protease allergens were found deep in the airway mucosa and breaching the endothelial barrier. Lung endothelial cells and PACs released the Th2-promoting cytokines IL-1α and GM-CSF in response to HDME, and the endothelium had PAC-derived VEGF-C-dependent blood vessel sprouting. Blockade of the angiogenic response by inhibition of VEGF-C signaling lessened the development of inflammation and airway remodeling in the HDM model. Reconstitution of the bone marrow in WT mice with PAR-2-deficient bone marrow also reduced airway inflammation and remodeling. Adoptive transfer of PACs that had been exposed to HDME induced angiogenesis and Th2 inflammation with remodeling similar to that induced by allergen challenge. Our findings identify that lung endothelium and PACs in the airway sense allergen and elicit an angiogenic response that is central to the innate nonimmune origins of Th2 inflammation.
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Affiliation(s)
| | | | | | | | - Mei Yin
- Imaging Core, Lerner Research Institute, and
| | - Mark Aronica
- Department of Inflammation and Immunity.,Respiratory Institute, the Cleveland Clinic, Cleveland, Ohio, USA
| | - Serpil Erzurum
- Department of Inflammation and Immunity.,Respiratory Institute, the Cleveland Clinic, Cleveland, Ohio, USA
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Tumor-Associated Macrophages and Mast Cells Positive to Tryptase Are Correlated with Angiogenesis in Surgically-Treated Gastric Cancer Patients. Int J Mol Sci 2018; 19:ijms19041176. [PMID: 29649166 PMCID: PMC5979483 DOI: 10.3390/ijms19041176] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 04/09/2018] [Accepted: 04/09/2018] [Indexed: 12/20/2022] Open
Abstract
Mast cells and macrophages can play a role in tumor angiogenesis by stimulating microvascular density (MVD). The density of mast cells positive to tryptase (MCDPT), tumor-associated macrophages (TAMs), and MVD were evaluated in a series of 86 gastric cancer (GC) tissue samples from patients who had undergone potential curative surgery. MCDPT, TAMs, and MVD were assessed in tumor tissue (TT) and in adjacent normal tissue (ANT) by immunohistochemistry and image analysis. Each of the above parameters was correlated with the others and, in particular for TT, with important clinico-pathological features. In TT, a significant correlation between MCDPT, TAMs, and MVD was found by Pearson t-test analysis (p ranged from 0.01 to 0.02). No correlation to the clinico-pathological features was found. A significant difference in terms of mean MCDPT, TAMs, and MVD between TT and ANT was found (p ranged from 0.001 to 0.002). Obtained data suggest MCDPT, TAMs, and MVD increased from ANT to TT. Interestingly, MCDPT and TAMs are linked in the tumor microenvironment and they play a role in GC angiogenesis in a synergistic manner. The assessment of the combination of MCDPT and TAMs could represent a surrogate marker of angiogenesis and could be evaluated as a target of novel anti-angiogenic therapies in GC patients.
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29
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Identification of the integrin-binding site on coagulation factor VIIa required for proangiogenic PAR2 signaling. Blood 2017; 131:674-685. [PMID: 29246902 DOI: 10.1182/blood-2017-02-768218] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 12/12/2017] [Indexed: 12/14/2022] Open
Abstract
The tissue factor (TF) pathway serves both hemostasis and cell signaling, but how cells control these divergent functions of TF remains incompletely understood. TF is the receptor and scaffold of coagulation proteases cleaving protease-activated receptor 2 (PAR2) that plays pivotal roles in angiogenesis and tumor development. Here we demonstrate that coagulation factor VIIa (FVIIa) elicits TF cytoplasmic domain-dependent proangiogenic cell signaling independent of the alternative PAR2 activator matriptase. We identify a Lys-Gly-Glu (KGE) integrin-binding motif in the FVIIa protease domain that is required for association of the TF-FVIIa complex with the active conformer of integrin β1. A point mutation in this motif markedly reduces TF-FVIIa association with integrins, attenuates integrin translocation into early endosomes, and reduces delayed mitogen-activated protein kinase phosphorylation required for the induction of proangiogenic cytokines. Pharmacologic or genetic blockade of the small GTPase ADP-ribosylation factor 6 (arf6) that regulates integrin trafficking increases availability of TF-FVIIa with procoagulant activity on the cell surface, while inhibiting TF-FVIIa signaling that leads to proangiogenic cytokine expression and tumor cell migration. These experiments delineate the structural basis for the crosstalk of the TF-FVIIa complex with integrin trafficking and suggest a crucial role for endosomal PAR2 signaling in pathways of tissue repair and tumor biology.
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30
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Vähätupa M, Cordova ZM, Barker H, Aittomäki S, Uusitalo H, Järvinen TAH, Pesu M, Uusitalo-Järvinen H. Furin deficiency in myeloid cells leads to attenuated revascularization in a mouse-model of oxygen-induced retinopathy. Exp Eye Res 2017; 166:160-167. [PMID: 29031855 DOI: 10.1016/j.exer.2017.10.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 09/01/2017] [Accepted: 10/11/2017] [Indexed: 12/12/2022]
Abstract
Ischemic retinopathy is a vision-threatening disease associated with chronic retinal inflammation and hypoxia leading to abnormal angiogenesis. Furin, a member of the proprotein convertase family of proteins, has been implicated in the regulation of angiogenesis due to its essential role in the activation of several angiogenic growth factors, including vascular endothelial growth factor-C (VEGF-C), VEGF-D and transforming growth factor - β (TGF- β). In the present study, we evaluated expression of furin in the retina and its role in retinal angiogenesis. As both inflammation and hypoxia contribute to angiogenesis, the role of furin was evaluated using myeloid-cell specific furin knockout (KO) mice (designated LysMCre-fur(fl/fl)) both in developmental retinal angiogenesis as well as in hypoxia-driven angiogenesis using the oxygen-induced retinopathy (OIR) model. In the retina, furin expression was detected in endothelial cells, macrophages and, to some extent, in neurons. The rate of angiogenesis was not different in LysMCre-fur(fl/fl) mice when compared to their wild-type littermates during development. In the OIR model, the revascularization of retina was significantly delayed in LysMCre-fur(fl/fl) mice compared to their wild-type littermates, while there was no compensatory increase in the preretinal neovascularization in LysMCre-fur(fl/fl) mice. These results demonstrate that furin expression in myeloid cells plays a significant role in hypoxia-induced angiogenesis in retina.
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Affiliation(s)
- Maria Vähätupa
- Faculty of Medicine & Life Sciences, University of Tampere, Tampere, Finland
| | - Zuzet Martinez Cordova
- Faculty of Medicine & Life Sciences, University of Tampere, Tampere, Finland; Immunoregulation, Institute of Biosciences and Medical Technology (BioMediTech), University of Tampere, Tampere, Finland
| | - Harlan Barker
- Faculty of Medicine & Life Sciences, University of Tampere, Tampere, Finland
| | - Saara Aittomäki
- Faculty of Medicine & Life Sciences, University of Tampere, Tampere, Finland; Immunoregulation, Institute of Biosciences and Medical Technology (BioMediTech), University of Tampere, Tampere, Finland
| | - Hannu Uusitalo
- Faculty of Medicine & Life Sciences, University of Tampere, Tampere, Finland; Eye Centre, Tampere University Hospital, Tampere, Finland
| | - Tero A H Järvinen
- Faculty of Medicine & Life Sciences, University of Tampere, Tampere, Finland; Departments of Musculoskeletal Disorders, Tampere University Hospital, Tampere, Finland
| | - Marko Pesu
- Faculty of Medicine & Life Sciences, University of Tampere, Tampere, Finland; Immunoregulation, Institute of Biosciences and Medical Technology (BioMediTech), University of Tampere, Tampere, Finland; Departments of Dermatology, Tampere University Hospital, Tampere, Finland
| | - Hannele Uusitalo-Järvinen
- Faculty of Medicine & Life Sciences, University of Tampere, Tampere, Finland; Eye Centre, Tampere University Hospital, Tampere, Finland.
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31
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Zuo P, Zuo Z, Zheng Y, Wang X, Zhou Q, Chen L, Ma G. Protease-Activated Receptor-2 Deficiency Attenuates Atherosclerotic Lesion Progression and Instability in Apolipoprotein E-Deficient Mice. Front Pharmacol 2017; 8:647. [PMID: 28959204 PMCID: PMC5603739 DOI: 10.3389/fphar.2017.00647] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Accepted: 08/31/2017] [Indexed: 01/06/2023] Open
Abstract
Inflammatory mechanisms are involved in the process of atherosclerotic plaque formation and rupture. Accumulating evidence suggests that protease-activated receptor (PAR)-2 contributes to the pathophysiology of chronic inflammation on the vasculature. To directly examine the role of PAR-2 in atherosclerosis, we generated apolipoprotein E/PAR-2 double-deficient mice. Mice were fed with high-fat diet for 12 weeks starting at ages of 6 weeks. PAR-2 deficiency attenuated atherosclerotic lesion progression with reduced total lesion area, reduced percentage of stenosis and reduced total necrotic core area. PAR-2 deficiency increased fibrous cap thickness and collagen content of plaque. Moreover, PAR-2 deficiency decreased smooth muscle cell content, macrophage accumulation, matrix metallopeptidase-9 expression and neovascularization in plaque. Relative quantitative PCR assay using thoracic aorta revealed that PAR-2 deficiency reduced mRNA expression of inflammatory molecules, such as vascular cell adhesion molecule-1, intercellular adhesion molecule-1, tumor necrosis factor (TNF)-α and monocyte chemoattractant protein (MCP)-1. In vitro experiment, we found that PAR-2 deficiency reduced mRNA expression of interferon-γ, interleukin-6, TNF-α and MCP-1 in macrophage under unstimulated and lipopolysaccharide-stimulated conditions. These results suggest that PAR-2 deficiency attenuates the progression and instability of atherosclerotic plaque.
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Affiliation(s)
- Pengfei Zuo
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast UniversityNanjing, China
| | - Zhi Zuo
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast UniversityNanjing, China
| | - Yueyue Zheng
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast UniversityNanjing, China
| | - Xin Wang
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast UniversityNanjing, China
| | - Qianxing Zhou
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast UniversityNanjing, China
| | - Long Chen
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast UniversityNanjing, China
| | - Genshan Ma
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast UniversityNanjing, China
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Chen J, Xie L, Zheng Y, Liu C. Effects of silenced PAR-2 on cell proliferation, invasion and metastasis of esophageal cancer. Oncol Lett 2017; 14:4115-4121. [PMID: 28943918 PMCID: PMC5604181 DOI: 10.3892/ol.2017.6711] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 04/13/2017] [Indexed: 01/30/2023] Open
Abstract
The present study aimed to investigate the effect of protease-activated receptor 2 (PAR-2) on cell proliferation, invasion and metastasis in the esophageal EC109 cell line. Two short hairpin RNA (shRNA) expression plasmids were constructed based on the PAR-2 mRNA sequence in humans, and they were transfected into the EC109 esophageal cancer cell line, and the stable interference cell line (shRNA-PAR-2 EC109) was obtained by puromycin selection. Following transfection of PAR-2 shRNA-1, PAR-2 expression was significantly downregulated in mRNA level and protein level in EC109 cells (P<0.05). The proliferation of EC109 cells transfected with PAR-2 shRNA was significantly lower than the negative control group (P<0.05). At 24, 48 and 72 h, the ratio of proliferation inhibition was 15.92, 24.89 and 32.28%, respectively. Compared with the control group, S-phase arrest was observed in cells transfected with shRNA-PAR-2. The ratio of cells in the S phase was 32.79±4.06, 26.54±1.37 and 33.45±2.46% at 24, 48 and 72 h, respectively. For invasion, the number of invasive cells was significantly lower in shRNA-PAR2-2 cells compared with the control group (P<0.05). For metastasis assay, the number of invasive cells was significantly lower in shRNA-PAR2-2 cells compared with the control group (P<0.01). In the present study, the PAR-2 shRNA plasmid was constructed successfully, which can significantly downregulate PAR-2 expression in EC109 cells. Subsequent to silencing of PAR-2, the proliferation of EC109 cells was inhibited and the capabilities of invasion and migration were reduced. It is indicated that PAR-2 may be a potential target in esophageal cancer.
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Affiliation(s)
- Jinmei Chen
- Department of Gastroenterology, Affiliated Hospital of Logistics University of People's Armed Police Force, Tianjin 300162, P.R. China
| | - Liqun Xie
- Department of Gastroenterology, Affiliated Hospital of Logistics University of People's Armed Police Force, Tianjin 300162, P.R. China
| | - Yanmin Zheng
- Department of Gastroenterology, Affiliated Hospital of Logistics University of People's Armed Police Force, Tianjin 300162, P.R. China
| | - Caihong Liu
- Department of Gastroenterology, Affiliated Hospital of Logistics University of People's Armed Police Force, Tianjin 300162, P.R. China
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Role of carbonic anhydrases in skin wound healing. Exp Mol Med 2017; 49:e334. [PMID: 28524177 PMCID: PMC5454449 DOI: 10.1038/emm.2017.60] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 12/07/2016] [Accepted: 12/09/2016] [Indexed: 02/08/2023] Open
Abstract
Skin wound closure occurs when keratinocytes migrate from the edge of the wound and re-epithelialize the epidermis. Their migration takes place primarily before any vascularization is established, that is, under hypoxia, but relatively little is known regarding the factors that stimulate this migration. Hypoxia and an acidic environment are well-established stimuli for cancer cell migration. The carbonic anhydrases (CAs) contribute to tumor cell migration by generating an acidic environment through the conversion of carbon dioxide to bicarbonate and a proton. On this basis, we explored the possible role of CAs in tissue regeneration using mouse skin wound models. We show that the expression of mRNAs encoding CA isoforms IV and IX are increased (~25 × and 4 ×, respectively) during the wound hypoxic period (days 2-5) and that cells expressing CAs form a band-like structure beneath the migrating epidermis. RNA-Seq analysis suggested that the CA IV-specific signal in the wound is mainly derived from neutrophils. Due to the high level of induction of CA IV in the wound, we treated skin wounds locally with recombinant human CA IV enzyme. Recombinant CA IV significantly accelerated wound re-epithelialization. Thus, CA IV could contribute to wound healing by providing an acidic environment in which the migrating epidermis and neutrophils can survive and may offer novel opportunities to accelerate wound healing under compromised conditions.
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Ammendola M, Sacco R, Vescio G, Zuccalà V, Luposella M, Patruno R, Zizzo N, Gadaleta C, Marech I, Ruggieri R, Kocak IF, Ozgurtas T, Gadaleta CD, Sammarco G, Ranieri G. Tryptase mast cell density, protease-activated receptor-2 microvascular density, and classical microvascular density evaluation in gastric cancer patients undergoing surgery: possible translational relevance. Therap Adv Gastroenterol 2017; 10:353-360. [PMID: 28491140 PMCID: PMC5405880 DOI: 10.1177/1756283x16673981] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Mast cells (MCs) can stimulate angiogenesis, releasing several proangiogenic cytokines stored in their cytoplasm. In particular, MCs can release tryptase, a potent in vivo and in vitro proangiogenic factor via protease-activated receptor-2 (PAR-2) activation and mitogen-activated protein kinase (MAPK) phosphorylation. Nevertheless, no data are available concerning the relationship among tryptase MC density (TMCD), endothelial cells (ECs) positive to PAR-2 microvascular density (PAR-2-MVD) and classical MVD (C-MVD) in gastric cancer (GC) angiogenesis. METHODS In this study, we analyzed the correlation of TMCD, PAR-2-MVD, C-MVD with each other and with the main clinicopathological features in GC patients who underwent surgery. A series of 77 GC patients with stage T2-3N2-3M0 (classified by the American Joint Committee on Cancer for Gastric Cancer, 7th edition) were selected and then underwent surgery. RESULTS Tumour tissue samples were evaluated by mean of immunohistochemistry and image analysis methods in terms of numbers of TMCD, PAR-2-MVD and C-MVD. A significant correlation between the TMCD, PAR-2-MVD and C-MVD groups with each other was found by Pearson t-test analysis (r ranged from 0.64 to 0.76; p value ranged from 0.02 to 0.03). There was no other significant correlation between the above parameters and clinicopathological features. CONCLUSIONS Our in vivo preliminary data suggest that TMCD and PAR-2-MVD may play a role in GC angiogenesis and they could be further evaluated as a target of antiangiogenic therapy.
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Affiliation(s)
| | - Rosario Sacco
- Department of Medical and Surgical Sciences, Clinical Surgery Unit, University of Catanzaro ‘Magna Graecia’ Medical School, Catanzaro, Italy
| | - Giuseppina Vescio
- Department of Medical and Surgical Sciences, Clinical Surgery Unit, University of Catanzaro ‘Magna Graecia’ Medical School, Catanzaro, Italy
| | - Valeria Zuccalà
- Health Science Department, Pathology Unit, University of Catanzaro ‘Magna Graecia’ Medical School, Catanzaro, Italy
| | - Maria Luposella
- Cardiovascular Disease Unit, ‘San Giovanni di Dio’ Hospital, Crotone, Italy
| | - Rosa Patruno
- Chair of Pathology, University ‘Aldo Moro’ Veterinary Medical School, Bari, Italy
| | - Nicola Zizzo
- Chair of Pathology, University ‘Aldo Moro’ Veterinary Medical School, Bari, Italy
| | - Claudia Gadaleta
- Chair of Pathology, University ‘Aldo Moro’ Veterinary Medical School, Bari, Italy
| | - Ilaria Marech
- Diagnostic and Interventional Radiology Unit with Integrated Section of Translational Medical Oncology, National Cancer Research Centre, ‘Giovanni Paolo II’, Bari, Italy
| | - Roberta Ruggieri
- Diagnostic and Interventional Radiology Unit with Integrated Section of Translational Medical Oncology, National Cancer Research Centre, ‘Giovanni Paolo II’, Bari, Italy
| | - Ibrahim Furkan Kocak
- Department of Biochemistry, Gulhane Military Medical Academy Etlik, Ankara, Turkey
| | - Taner Ozgurtas
- Department of Biochemistry, Gulhane Military Medical Academy Etlik, Ankara, Turkey
| | - Cosmo Damiano Gadaleta
- Diagnostic and Interventional Radiology Unit with Integrated Section of Translational Medical Oncology, National Cancer Research Centre, ‘Giovanni Paolo II’, Bari, Italy
| | - Giuseppe Sammarco
- Department of Medical and Surgical Sciences, Clinical Surgery Unit, University of Catanzaro ‘Magna Graecia’ Medical School, Catanzaro, Italy
| | - Girolamo Ranieri
- Diagnostic and Interventional Radiology Unit with Integrated Section of Translational Medical Oncology, National Cancer Research Centre, ‘Giovanni Paolo II’, Bari, Italy
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35
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Ammendola M, Sacco R, Zuccalà V, Luposella M, Patruno R, Gadaleta P, Zizzo N, Gadaleta CD, De Sarro G, Sammarco G, Oltean M, Ranieri G. Mast Cells Density Positive to Tryptase Correlate with Microvascular Density in both Primary Gastric Cancer Tissue and Loco-Regional Lymph Node Metastases from Patients That Have Undergone Radical Surgery. Int J Mol Sci 2016; 17:ijms17111905. [PMID: 27854307 PMCID: PMC5133903 DOI: 10.3390/ijms17111905] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 11/05/2016] [Accepted: 11/10/2016] [Indexed: 12/27/2022] Open
Abstract
Mast Cells (MCs) play a role in immune responses and more recently MCs have been involved in tumoral angiogenesis. In particular MCs can release tryptase, a potent in vivo and in vitro pro-angiogenic factor via proteinase-activated receptor-2 (PAR-2) activation and mitogen-activated protein kinase (MAPK) phosphorylation. MCs can release tryptase following c-Kit receptor activation. Nevertheless, no data are available concerning the relationship among MCs Density Positive to Tryptase (MCDPT) and Microvascular Density (MVD) in both primary gastric cancer tissue and loco-regional lymph node metastases. A series of 75 GC patients with stage T2-3N2-3M₀ (by AJCC for Gastric Cancer Seventh Edition) undergone to radical surgery were selected for the study. MCDPT and MVD were evaluated by immunohistochemistry and by image analysis system and results were correlated each to other in primary tumor tissue and in metastatic lymph nodes harvested. Furthermore, tissue parameters were correlated with important clinico-pathological features. A significant correlation between MCDPT and MVD was found in primary gastric cancer tissue and lymph node metastases. Pearson t-test analysis (r ranged from 0.74 to 0.79; p-value ranged from 0.001 to 0.003). These preliminary data suggest that MCDPT play a role in angiogenesis in both primary tumor and in lymph node metastases from GC. We suggest that MCs and tryptase could be further evaluated as novel targets for anti-angiogenic therapies.
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Affiliation(s)
- Michele Ammendola
- Department of Medical and Surgical Sciences, Clinical Surgery Unit, University "Magna Graecia" Medical School, Viale Europa, Germaneto, 88100 Catanzaro, Italy.
- Surgery Unit, National Cancer Research Centre, Istituto Tumori "Giovanni Paolo II", Viale Orazio Flacco 65, 70124 Bari, Italy.
| | - Rosario Sacco
- Department of Medical and Surgical Sciences, Clinical Surgery Unit, University "Magna Graecia" Medical School, Viale Europa, Germaneto, 88100 Catanzaro, Italy.
| | - Valeria Zuccalà
- Pathology Unit, "Pugliese-Ciaccio" Hospital, Viale Pio X, 88100 Catanzaro, Italy.
| | - Maria Luposella
- Cardiovascular Disease Unit, "San Giovanni di Dio" Hospital, 88900 Crotone, Italy.
| | - Rosa Patruno
- Chair of Pathology, Veterinary Medical School, University "Aldo Moro" of Bari, Via Casamassima, 70010 Bari, Italy.
| | - Pietro Gadaleta
- Diagnostic and Interventional Radiology Unit with Integrated Section of Translational Medical Oncology, National Cancer Research Centre, Istituto Tumori "Giovanni Paolo II", viale Orazio Flacco 65, 70124 Bari, Italy.
| | - Nicola Zizzo
- Chair of Pathology, Veterinary Medical School, University "Aldo Moro" of Bari, Via Casamassima, 70010 Bari, Italy.
| | - Cosmo Damiano Gadaleta
- Diagnostic and Interventional Radiology Unit with Integrated Section of Translational Medical Oncology, National Cancer Research Centre, Istituto Tumori "Giovanni Paolo II", viale Orazio Flacco 65, 70124 Bari, Italy.
| | - Giovambattista De Sarro
- Department of Health Science, Clinical Pharmacology and Pharmacovigilance Unit and Pharmacovigilance's Centre Calabria Region, University of Catanzaro "Magna Graecia" Medical School, Viale Europa, Germaneto, 88100 Catanzaro, Italy.
| | - Giuseppe Sammarco
- Department of Medical and Surgical Sciences, Clinical Surgery Unit, University "Magna Graecia" Medical School, Viale Europa, Germaneto, 88100 Catanzaro, Italy.
| | - Mihai Oltean
- The Institute for Clinical Sciences, Department of Transplantation, University Hospital, Sahlgrenska Academy at the University of Gothenburg, 41345 Gothenburg, Sweden.
| | - Girolamo Ranieri
- Diagnostic and Interventional Radiology Unit with Integrated Section of Translational Medical Oncology, National Cancer Research Centre, Istituto Tumori "Giovanni Paolo II", viale Orazio Flacco 65, 70124 Bari, Italy.
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Vähätupa M, Prince S, Vataja S, Mertimo T, Kataja M, Kinnunen K, Marjomäki V, Uusitalo H, Komatsu M, Järvinen TAH, Uusitalo-Järvinen H. Lack of R-Ras Leads to Increased Vascular Permeability in Ischemic Retinopathy. Invest Ophthalmol Vis Sci 2016; 57:4898-4909. [PMID: 27654416 PMCID: PMC5032915 DOI: 10.1167/iovs.16-19212] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Purpose The role of R-Ras in retinal angiogenesis and vascular permeability was evaluated in an oxygen-induced retinopathy (OIR) model using R-Ras knockout (KO) mice and in human diabetic neovascular membranes. Methods Mice deficient for R-Ras and their wild-type (WT) littermates were subjected to 75% oxygen from postnatal day 7 (P7) to P12 and then returned to room air. At P17 retinal vascularization was examined from whole mounts, and retinal vascular permeability was studied using Miles assay. Real-time RT-PCR, Western blotting, and immunohistochemistry were used to assess the expression of R-Ras in retina during development or in the OIR model. The degree of pericyte coverage and vascular endothelial (VE)-cadherin expression on WT and R-Ras KO retinal blood vessels was quantified using confocal microscopy. The correlation of R-Ras with vascular endothelial growth factor receptor 2 (VEGFR2) and human serum albumin on human proliferative diabetic retinopathy membranes was assessed using immunohistochemistry. Results In retina, R-Ras expression was mostly restricted to the vasculature. Retinal vessels in the R-Ras KO mice were significantly more permeable than WT controls in the OIR model. A significant reduction in the direct physical contact between pericytes and blood vessel endothelium as well as reduced VE-cadherin immunostaining was found in R-Ras–deficient mice. In human proliferative diabetic retinopathy neovascular membranes, R-Ras expression negatively correlated with increased vascular leakage and expression of VEGFR2, a marker of blood vessel immaturity. Conclusions Our results suggest that R-Ras has a role in controlling retinal vessel maturation and stabilization in ischemic retinopathy and provides a potential target for pharmacologic manipulation to treat diabetic retinopathy.
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Affiliation(s)
- Maria Vähätupa
- Department of Ophthalmology, University of Tampere, Tampere, Finland 2Department of Anatomy, University of Tampere, Tampere, Finland
| | - Stuart Prince
- Department of Anatomy, University of Tampere, Tampere, Finland
| | - Suvi Vataja
- Department of Ophthalmology, University of Tampere, Tampere, Finland
| | - Teija Mertimo
- Department of Ophthalmology, University of Tampere, Tampere, Finland
| | - Marko Kataja
- Eye Centre, Tampere University Hospital, Tampere, Finland
| | - Kati Kinnunen
- Department of Ophthalmology, Kuopio University Hospital, Kuopio, Finland
| | - Varpu Marjomäki
- Department of Biological and Environmental Science/Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Hannu Uusitalo
- Department of Ophthalmology, University of Tampere, Tampere, Finland 3Eye Centre, Tampere University Hospital, Tampere, Finland
| | - Masanobu Komatsu
- Sanford Burnham Prebys Medical Discovery Institute at Lake Nona, Orlando, Florida, United States
| | - Tero A H Järvinen
- Department of Anatomy, University of Tampere, Tampere, Finland 7Department of Musculoskeletal Disorders, Tampere University Hospital, Tampere, Finland
| | - Hannele Uusitalo-Järvinen
- Department of Ophthalmology, University of Tampere, Tampere, Finland 3Eye Centre, Tampere University Hospital, Tampere, Finland
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Ammendola M, Sacco R, Sammarco G, Piardi T, Zuccalà V, Patruno R, Zullo A, Zizzo N, Nardo B, Marech I, Crovace A, Gadaleta CD, Pessaux P, Ranieri G. Mast cells positive to tryptase, endothelial cells positive to protease-activated receptor-2, and microvascular density correlate among themselves in hepatocellular carcinoma patients who have undergone surgery. Onco Targets Ther 2016; 9:4465-71. [PMID: 27499640 PMCID: PMC4959580 DOI: 10.2147/ott.s105368] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Mast cells (MCs) can stimulate angiogenesis, releasing several proangiogenic cytokines stored in their cytoplasm. In particular MCs can release tryptase, a potent in vivo and in vitro proangiogenic factor via proteinase-activated receptor-2 (PAR-2) activation and mitogen-activated protein kinase phosphorylation. Nevertheless, no data are available concerning the relationship between MC density positive to tryptase (MCDPT), endothelial cells positive to PAR-2 forming microvascular density (PAR-2-MVD), and classical MVD (C-MVD) in hepatocellular carcinoma (HCC) angiogenesis. This study analyzed the correlation between MCDPT, PAR-2-MVD, and C-MVD, each correlated to the others and to the main clinicopathological features, in early HCC patients who underwent surgery. METHODS A series of 53 HCC patients with early stage (stage 0 according to the Barcelona Clinic Liver Cancer Staging Classification) were selected and then underwent surgery. Tumor tissue samples were evaluated by means of immunohistochemistry and image analysis methods in terms of number of MCDPT, PAR-2-MVD, and C-MVD. RESULTS A significant correlation between MCDPT, PAR-2-MVD, and C-MVD groups, each correlated to the others, was found by Pearson t-test analysis (r ranged from 0.67 to 0.81; P-value ranged from 0.01 to 0.03). No other significant correlation was found. CONCLUSION Our in vivo pilot data suggest that MCDPT and PAR-2-MVD may play a role in HCC angiogenesis and could be further evaluated as a target of antiangiogenic therapy.
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Affiliation(s)
- Michele Ammendola
- Department of Medical and Surgical Sciences, General Surgery Unit, University of Catanzaro "Magna Graecia" Medical School, Catanzaro, Italy
| | - Rosario Sacco
- Department of Medical and Surgical Sciences, General Surgery Unit, University of Catanzaro "Magna Graecia" Medical School, Catanzaro, Italy
| | - Giuseppe Sammarco
- Department of Medical and Surgical Sciences, General Surgery Unit, University of Catanzaro "Magna Graecia" Medical School, Catanzaro, Italy
| | - Tullio Piardi
- Department of General, Digestive and Endocrine Surgery, Hopital Robert Debre, Centre Hospitalier Universitaire de Reims, Universite de Reims Champagne-Ardenne, Reims, France
| | - Valeria Zuccalà
- Department of Health Science, Pathology Unit, University of Catanzaro "Magna Graecia" Medical School, Catanzaro
| | - Rosa Patruno
- Chair of Pathology, Veterinary Medical School, University "Aldo Moro", Bari
| | - Alessandra Zullo
- Department of Medical and Surgical Sciences, General Surgery Unit, University of Catanzaro "Magna Graecia" Medical School, Catanzaro, Italy
| | - Nicola Zizzo
- Chair of Pathology, Veterinary Medical School, University "Aldo Moro", Bari
| | - Bruno Nardo
- Department of Medical and Surgery Sciences, S Orsola Hospital, University of Bologna, Bologna
| | - Ilaria Marech
- Interventional Radiology Unit with Integrated Section of Translational Medical Oncology, National Cancer Research Centre, "Giovanni Paolo II"
| | - Alberto Crovace
- Department of Emergency and Organ Transplantation (DETO), Veterinary Medical School, University "Aldo Moro", Bari, Italy
| | - Cosmo Damiano Gadaleta
- Interventional Radiology Unit with Integrated Section of Translational Medical Oncology, National Cancer Research Centre, "Giovanni Paolo II"
| | - Patrick Pessaux
- Hepato-Biliary and Pancreatic Surgical Unit, General, Digestive and Endocrine Surgery, IRCAD, IHU Mix-Surg, Institute for Minimally Invasive Image-Guided Surgery, University of Strasbourg, Strasbourg, France
| | - Girolamo Ranieri
- Interventional Radiology Unit with Integrated Section of Translational Medical Oncology, National Cancer Research Centre, "Giovanni Paolo II"
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Abstract
Cancer-associated thrombosis remains a significant complication in the clinical management of cancer and interactions of the hemostatic system with cancer biology continue to be elucidated. Here, we review recent progress in our understanding of tissue factor (TF) regulation and procoagulant activation, TF signaling in cancer and immune cells, and the expanding roles of the coagulation system in stem cell niches and the tumor microenvironment. The extravascular functions of coagulant and anti-coagulant pathways have significant implications not only for tumor progression, but also for the selection of appropriate target specific anticoagulants in the therapy of cancer patients.
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Affiliation(s)
- Wolfram Ruf
- Center for Thrombosis and Hemostasis, University Medical Center, Mainz, Germany; Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA, USA.
| | - Andrea S Rothmeier
- Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA, USA
| | - Claudine Graf
- Center for Thrombosis and Hemostasis, University Medical Center, Mainz, Germany; 3(rd) Medical Department, University Medical Center, Mainz, Germany
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Ammendola M, Sacco R, Sammarco G, Luposella M, Patruno R, Gadaleta CD, Sarro GD, Ranieri G. Mast Cell-Targeted Strategies in Cancer Therapy. Transfus Med Hemother 2016; 43:109-13. [PMID: 27330532 DOI: 10.1159/000444942] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 02/18/2016] [Indexed: 02/06/2023] Open
Abstract
Mast cells (MCs) are cells that originate in the bone marrow from pluripotent CD34+ hematopoietic stem cells. Precursors of MCs migrate through the circulation to their target tissues, completing their maturation process into granulated cells under the influence of several microenvironment growth factors. The most important of these factors is the ligand for the c-Kit receptor (c-Kit-R) namely stem cell factor (SCF), secreted mainly by fibroblasts and endothelial cells (ECs). SCF also regulates development, survival and de novo proliferation of MCs. It has already been demonstrated that gain-of-function mutations of gene c-Kit encoding c-Kit-R result in the development of some tumors. Furthermore, MCs are able also to modulate both innate and adaptive immune response and to express the high-affinity IgE receptor following IgE activation. Among the other IgE-independent MC activation mechanisms, a wide variety of other surface receptors for cytokines, chemokines, immunoglobulins, and complement are also described. Interestingly, MCs can stimulate angiogenesis by releasing of several pro-angiogenic cytokines stored in their cytoplasm. Studies published in the last year suggest that angiogenesis stimulated by MCs may play an important role in tumor growth and progression. Here, we aim to focus several biological features of MCs and to summarize new anti-cancer MC-targeted strategies with potential translation in human clinical trials.
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Affiliation(s)
- Michele Ammendola
- Department of Medical and Surgical Sciences, General Surgery Unit, University of Catanzaro 'Magna Graecia' Medical School, Catanzaro, Italy
| | - Rosario Sacco
- Department of Medical and Surgical Sciences, General Surgery Unit, University of Catanzaro 'Magna Graecia' Medical School, Catanzaro, Italy
| | - Giuseppe Sammarco
- Department of Medical and Surgical Sciences, General Surgery Unit, University of Catanzaro 'Magna Graecia' Medical School, Catanzaro, Italy
| | - Maria Luposella
- Cardiovascular Disease Unit, 'San Giovanni di Dio' Hospital, Crotone, Italy
| | - Rosa Patruno
- Interventional Radiology Unit with Integrated Section of Translational Medical Oncology, National Cancer Research Centre, 'Giovanni Paolo II', Bari, Italy
| | - Cosmo Damiano Gadaleta
- Interventional Radiology Unit with Integrated Section of Translational Medical Oncology, National Cancer Research Centre, 'Giovanni Paolo II', Bari, Italy
| | - Giovambattista De Sarro
- Department of Health Science, Clinical Pharmacology and Pharmacovigilance Unit and Pharmacovigilance's Centre Calabria Region, University of Catanzaro 'Magna Graecia' Medical School, Catanzaro, Italy
| | - Girolamo Ranieri
- Interventional Radiology Unit with Integrated Section of Translational Medical Oncology, National Cancer Research Centre, 'Giovanni Paolo II', Bari, Italy
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40
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Holinstat M, Bray PF. Protease receptor antagonism to target blood platelet therapies. Clin Pharmacol Ther 2015; 99:72-81. [PMID: 26501993 DOI: 10.1002/cpt.282] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 10/19/2015] [Accepted: 10/20/2015] [Indexed: 01/24/2023]
Abstract
Platelet activation and thrombus formation play a central role in ischemic vascular disease. Thrombin, an especially potent physiologic agonist mediating in vivo activation of platelets, acts via a unique family of G-protein-coupled receptors called protease-activated receptors (PARs) with a broad tissue expression. This review focuses on current antiplatelet therapies as well as innovative approaches to targeting PARs in patients with atherothrombotic vascular disease.
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Affiliation(s)
- M Holinstat
- University of Michigan Medical School, Departments of Pharmacology and Internal Medicine, Ann Arbor, Michigan, USA
| | - P F Bray
- Thomas Jefferson University, The Cardeza Foundation for Hematologic Research and the Department of Medicine, Jefferson Medical College, Philadelphia, Pennsylvania, USA
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Yang L, Ma Y, Han W, Li W, Cui L, Zhao X, Tian Y, Zhou Z, Wang W, Wang H. Proteinase-activated receptor 2 promotes cancer cell migration through RNA methylation-mediated repression of miR-125b. J Biol Chem 2015; 290:26627-37. [PMID: 26354435 DOI: 10.1074/jbc.m115.667717] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Indexed: 01/08/2023] Open
Abstract
Proteinase activated-receptor 2 (PAR2) participates in cancer metastasis promoted by serine proteinases. The current study aimed to test the molecular mechanism by which PAR2 promotes cancer cell migration. In different cancer cells, activation of PAR2 by activating peptide (PAR2-AP) dramatically increased cell migration, whereas knock down of PAR2 inhibited cellular motility. The PAR2 activation also repressed miR-125b expression while miR-125b mimic successfully blocked PAR2-induced cell migration. Moreover, Grb associated-binding protein 2 (Gab2) was identified as a novel target gene of miR-125b and it mediated PAR2-induced cell migration. The correlation of PAR2 with miR-125b and Gab2 was further supported by the findings obtained from human colorectal carcinoma specimens. Remarkably, knock down of NOP2/Sun domain family, member 2 (NSun2), a RNA methyltransferase, blocked the reduction in miR-125b induced by PAR2. Furthermore, PAR2 activation increased the level of N(6)-methyladenosine (m(6)A)-containing pre-miR-125b in NSun2-dependent manner. Taken together, our results demonstrated that miR-125b mediates PAR2-induced cancer cell migration by targeting Gab2 and that NSun2-dependent RNA methylation contributes to the down-regulation of miR-125b by PAR2 signaling. These findings suggest a novel epigenetic mechanism by which microenvironment regulates cancer cell migration by altering miRNA expression.
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Affiliation(s)
- Lan Yang
- From the State Key Laboratory of Molecular Oncology
| | - Yiming Ma
- From the State Key Laboratory of Molecular Oncology
| | - Wenxiao Han
- From the State Key Laboratory of Molecular Oncology
| | - Weiwei Li
- From the State Key Laboratory of Molecular Oncology
| | - Liang Cui
- Department of Abdominal Surgical Oncology, and
| | - Xinhua Zhao
- From the State Key Laboratory of Molecular Oncology
| | - Yantao Tian
- Department of Abdominal Surgical Oncology, and
| | - Zhixiang Zhou
- Department of Gastrointestinal Surgical Oncology, Cancer Institute/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, 100021 Beijing, PR China and
| | - Wengong Wang
- Department of Biochemistry and Molecular Biology, Peking University Health Science Center, 100191 Beijing, PR China
| | - Hongying Wang
- From the State Key Laboratory of Molecular Oncology,
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Zuo P, Zhou Q, Zuo Z, Wang X, Chen L, Ma G. Effects of the factor Xa inhibitor, fondaparinux, on the stability of atherosclerotic lesions in apolipoprotein E-deficient mice. Circ J 2015; 79:2499-508. [PMID: 26346031 DOI: 10.1253/circj.cj-15-0285] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Atherosclerosis is a progressive inflammatory disease that can lead to sudden cardiac events by plaque rupture and subsequent thrombosis. Factor Xa (FXa) not only occupies a crucial position in the coagulation cascade responsible for thrombin generation, but also has pro-inflammatory effects. The hypothesis that Fondaparinux, the selective FXa inhibitor, attenuates plaque progression and promotes stability of atherosclerotic lesions was assessed. METHODS AND RESULTS Fondaparinux (5 mg/kg body weight/day) or 0.9% saline was intraperitoneally administered for 4 weeks to apolipoprotein E-deficient mice (n=12 per group) with established atherosclerotic lesions in the innominate arteries. Fondaparinux did not remarkably decrease the progression of atherosclerosis development in apolipoprotein E-deficient mice, but increased the thickness of fibrous cap (P=0.049) and decreased the ratio of necrotic core (P=0.001) significantly. Moreover, Fondaparinux reduced the staining against Mac-2 (P=0.017), α-SMA (P=0.002), protease-activated receptor (PAR)-1 (P=0.001), PAR-2 (P=0.003), CD-31 (P=0.024), MMP-9 (P=0.000), MMP-13(P=0.011), VCAM-1 (P=0.041) and the mRNA expression of inflammatory mediators (P<0.05) significantly, such as interleukin (IL)-6, MCP-1, IFN-γ, TNF-α, IL-10 and Egr-1. CONCLUSIONS Fondaparinux, the selective FXa inhibitor, can promote the stability of atherosclerotic lesions in apolipoprotein E-deficient mice, possibly through inhibiting expression of the inflammatory mediators in plaque and reduced synthesis of MMP-9 and MMP-13.
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Affiliation(s)
- Pengfei Zuo
- Department of Cardiology, Zhongda Hospital, Medical School of Southeast University
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Yu Y, Chen H, Su SB. Neuroinflammatory responses in diabetic retinopathy. J Neuroinflammation 2015; 12:141. [PMID: 26245868 PMCID: PMC4527131 DOI: 10.1186/s12974-015-0368-7] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 07/27/2015] [Indexed: 01/14/2023] Open
Abstract
Diabetic retinopathy (DR) is a common complication of diabetes and has been recognized as a vascular dysfunction leading to blindness in working-age adults. It becomes increasingly clear that neural cells in retina play an important role in the pathogenesis of DR. Neural retina located at the back of the eye is part of the brain and a representative of the central nervous system. The neurosensory deficits seen in DR are related to inflammation and occur prior to the clinically identifiable vascular complications. The neural deficits are associated with abnormal reactions of retina glial cells and neurons in response to hyperglycemia. Improper activation of the innate immune system may also be an important contributor to the pathophysiology of DR. Therefore, DR manifests characteristics of both vasculopathy and chronic neuroinflammatory diseases. In this article, we attempt to provide an overview of the current understanding of inflammation in neural retina abnormalities in diabetes. Inhibition of neuroinflammation may represent a novel therapeutic strategy to the prevention of the progression of DR.
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Affiliation(s)
- Ying Yu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 S Xianlie Road, Guangzhou, 510060, China.
| | - Hui Chen
- Eye Institute, Affiliated Hospital of Nantong University, Nantong, 226001, China.
| | - Shao Bo Su
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 S Xianlie Road, Guangzhou, 510060, China.
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Sun Z, Cao B, Wu J. Protease-activated receptor 2 enhances renal cell carcinoma cell invasion and migration via PI3K/AKT signaling pathway. Exp Mol Pathol 2015; 98:382-9. [DOI: 10.1016/j.yexmp.2015.03.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2015] [Revised: 03/10/2015] [Accepted: 03/11/2015] [Indexed: 01/22/2023]
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d'Audigier C, Cochain C, Rossi E, Guérin CL, Bièche I, Blandinières A, Marsac B, Silvestre JS, Gaussem P, Smadja DM. Thrombin receptor PAR-1 activation on endothelial progenitor cells enhances chemotaxis-associated genes expression and leukocyte recruitment by a COX-2-dependent mechanism. Angiogenesis 2015; 18:347-59. [PMID: 26026674 DOI: 10.1007/s10456-015-9471-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 05/18/2015] [Indexed: 12/16/2022]
Abstract
BACKGROUND Endothelial colony forming cells (ECFC) represent a subpopulation of endothelial progenitor cells involved in endothelial repair. The activation of procoagulant mechanisms associated with the vascular wall's inflammatory responses to injury plays a crucial role in the induction and progression of atherosclerosis. However, little is known about ECFC proinflammatory potential. AIMS To explore the role of the thrombin receptor PAR-1 proinflammatory effects on ECFC chemotaxis/recruitment capacity. METHODS AND RESULTS The expression of 30 genes known to be associated with inflammation and chemotaxis was quantified in ECFC by real-time qPCR. PAR-1 activation with the SFLLRN peptide (PAR-1-ap) resulted in a significant increase in nine chemotaxis-associated genes expression, including CCL2 and CCL3 whose receptors are present on ECFC. Furthermore, COX-2 expression was found to be dramatically up-regulated consequently to PAR-1 activation. COX-2 silencing with the specific COX-2-siRNA also triggered down-regulation of the nine target genes. Conditioned media (c.m.) from control-siRNA- and COX-2-siRNA-transfected ECFC, stimulated or not with PAR-1-ap, were produced and tested on ECFC capacity to recruit leukocytes in vitro as well in the muscle of ischemic hindlimb in a preclinical model. The capacity of the c.m. from ECFC stimulated with PAR-1-ap to recruit leukocytes was abrogated when COX-2 gene expression was silenced in vitro (in terms of U937 cells migration and adhesion to endothelial cells) as well as in vivo. Finally, the postnatal vasculogenic stem cell derived from infantile hemangioma tumor (HemSC) incubated with PAR-1-ap increased leukocyte recruitment in Matrigel(®) implant. CONCLUSIONS PAR-1 activation in ECFC increases chemotactic gene expression and leukocyte recruitment at ischemic sites through a COX-2-dependent mechanism.
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Xue M, Sun Z, Shao M, Yin J, Deng Z, Zhang J, Xing L, Yang X, Chen B, Dong Z, Han Y, Sun S, Wang Y, Yao C, Chu X, Tong C, Song Z. Diagnostic and prognostic utility of tissue factor for severe sepsis and sepsis-induced acute lung injury. J Transl Med 2015; 13:172. [PMID: 26025445 PMCID: PMC4459056 DOI: 10.1186/s12967-015-0518-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 05/04/2015] [Indexed: 01/10/2023] Open
Abstract
Background Tissue factor (TF) and tissue factor pathway inhibitor (TFPI) play a central role in the endothelial permeability regulation and dysfunction, which is associated with the development of sepsis and acute lung injury/acute respiratory distress syndrome (ALI/ARDS). The aim of this study is to assess the diagnostic and prognostic values of TF and TFPI in patients with sepsis and sepsis-induced ARDS. Methods A total of 62 patients with sepsis, 167 patients with severe sepsis and 32 healthy volunteers were enrolled in this prospective observational study. TF and TFPI levels were measured by enzyme-linked immunosorbent assay (ELISA). Results Patients with sepsis-induced ARDS showed significantly higher median levels of TF compared with patients without ARDS (1425.5 (1019.9 to 2595.2) pg/ml vs 916.2 (724.1 to 1618.2) pg/ml, P < 0.001), and compared with sepsis patients (943.5 (786.4 to 992.4) pg/ml, P < 0.001) on the day of admission. However, there was no significant difference between sepsis patients and healthy subjects, or between septic shock and non-septic shock patients (P > 0.05). The AUC of TF for the diagnosis of sepsis-induced ARDS was 0.749 (95% confidence interval (CI) 0.675-0.822). Plasma TF levels in the non-survivors of severe sepsis were significantly higher than those of survivors (1618.6 (1017.1 to 2900.8) pg/ml vs. 979.9 (757.2 to 1645.5) pg/ml, P < 0.001), and multivariate logistic regression showed the plasma value of TF was the independent predictor for 30-day mortality in patients with severe sepsis (P = 0.0022, odds ratio (OR) = 1.41, 95% CI 1.24-1.69). The AUC of TF for predicting 30-day mortality in severe sepsis patients was 0.718 (95% CI 0.641-0.794). However, there was no significant difference in the plasma TFPI values among the healthy control, sepsis and severe sepsis groups (P > 0.05). Conclusions Our data showed that tissue factor is a valuable diagnostic biomarker for the diagnosis of sepsis-induced ARDS. Moreover, tissue factor is a strong prognostic marker for short-term mortality in severe sepsis and sepsis-induced ARDS patients.
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Affiliation(s)
- Mingming Xue
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, PR China.
| | - Zhan Sun
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, PR China.
| | - Mian Shao
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, PR China.
| | - Jun Yin
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, PR China.
| | - Zhi Deng
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, PR China.
| | - Jin Zhang
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, PR China.
| | - Lingyu Xing
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, PR China.
| | - Xiaoliang Yang
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, PR China.
| | - Bin Chen
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, PR China.
| | - Zhimin Dong
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, PR China.
| | - Yi Han
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, PR China.
| | - Si Sun
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, PR China.
| | - Yuxin Wang
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, PR China.
| | - Chenling Yao
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, PR China.
| | - Xun Chu
- Department of Genetics, Chinese National Human Genome Center, 250 BiBo Road, Shanghai, 201203, PR China.
| | - Chaoyang Tong
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, PR China.
| | - Zhenju Song
- Department of Emergency Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, PR China.
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Moghadamrad S, McCoy KD, Geuking MB, Sägesser H, Kirundi J, Macpherson AJ, De Gottardi A. Attenuated portal hypertension in germ-free mice: Function of bacterial flora on the development of mesenteric lymphatic and blood vessels. Hepatology 2015; 61:1685-95. [PMID: 25643846 DOI: 10.1002/hep.27698] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Accepted: 01/04/2015] [Indexed: 12/20/2022]
Abstract
UNLABELLED Intestinal bacterial flora may induce splanchnic hemodynamic and histological alterations that are associated with portal hypertension (PH). We hypothesized that experimental PH would be attenuated in the complete absence of intestinal bacteria. We induced prehepatic PH by partial portal vein ligation (PPVL) in germ-free (GF) or mice colonized with altered Schaedler's flora (ASF). After 2 or 7 days, we performed hemodynamic measurements, including portal pressure (PP) and portosystemic shunts (PSS), and collected tissues for histomorphology, microbiology, and gene expression studies. Mice colonized with intestinal microbiota presented significantly higher PP levels after PPVL, compared to GF, mice. Presence of bacterial flora was also associated with significantly increased PSS and spleen weight. However, there were no hemodynamic differences between sham-operated mice in the presence or absence of intestinal flora. Bacterial translocation to the spleen was demonstrated 2 days, but not 7 days, after PPVL. Intestinal lymphatic and blood vessels were more abundant in colonized and in portal hypertensive mice, as compared to GF and sham-operated mice. Expression of the intestinal antimicrobial peptide, angiogenin-4, was suppressed in GF mice, but increased significantly after PPVL, whereas other angiogenic factors remained unchanged. Moreover, colonization of GF mice with ASF 2 days after PPVL led to a significant increase in intestinal blood vessels, compared to controls. The relative increase in PP after PPVL in ASF and specific pathogen-free mice was not significantly different. CONCLUSION In the complete absence of gut microbial flora PP is normal, but experimental PH is significantly attenuated. Intestinal mucosal lymphatic and blood vessels induced by bacterial colonization may contribute to development of PH.
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Affiliation(s)
- Sheida Moghadamrad
- Hepatology, Department of Clinical Research, University of Berne, Berne, Switzerland
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Li SM, Jiang P, Xiang Y, Wang WW, Zhu YC, Feng WY, Li SD, Yu GY. Protease-activated receptor (PAR)1, PAR2 and PAR4 expressions in esophageal squamous cell carcinoma. DONG WU XUE YAN JIU = ZOOLOGICAL RESEARCH 2015; 35:420-5. [PMID: 25297082 DOI: 10.13918/j.issn.2095-8137.2014.5.420] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Here, we used reverse transcription-PCR (RT-PCR) and western blot to detect protease-activated receptor (PAR) 1, PAR 2 and PAR 4 expression in cancer tissues and cell lines of esophageal squamous cell carcinoma, and investigated the co-relationship between PAR expression and clinic-pathological data for esophageal cancer. The methylation of PAR4 gene promoter involved in esophageal carcinoma was also analyzed. By comparing the mRNA expressions of normal esophageal tissue and human esophageal epithelial cells (HEEpiC), we found that among the 28 cases of esophageal squamous cell carcinoma, PAR1 (60%) and PAR2 (71%) were elevated in 17 and 20 cases, respectively, and PAR4 (68%) expression was lowered in 19 cases. Whereas, in human esophageal squamous cells (TE-1 and TE-10), PAR1 and PAR2 expression was increased but PAR4 was decreased. Combined with clinical data, the expression of PAR1 in poorly differentiated (P=0.016) and middle and lower parts of the esophagus (P=0.016) was higher; expression of PAR4 in poorly differentiated carcinoma was lower (P=0.049). Regarding TE-1 and TE-10 protein expression, we found that in randomized esophageal carcinoma, PAR1 (P=0.027) and PAR2 (P=0.039) expressions were increased, but lowered for PAR4 (P=0.0001). In HEEpiC, TE-1, TE-10, esophageal and normal esophagus tissue samples (case No. 7), the frequency of methylation at the 19 CpG loci of PAR4 was 35.4%, 95.2%, 83.8%, 62.6% and 48.2%, respectively. Our results indicate that the expression of PAR1 and PAR2 in esophageal squamous cell carcinoma is increased but PAR4 is decreased. Hypermethylation of the promoter of the PAR4 gene may contribute to reduced expression of PAR4 in esophageal squamous cell carcinoma.
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Affiliation(s)
- Si-Man Li
- Kunming Medical University, Kunming 650500, China
| | - Ping Jiang
- Kunming Medical University, Kunming 650500, China
| | - Yang Xiang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Kunming 650223, China
| | - Wei-Wei Wang
- Third Affiliated Hospital of Kunming Medical University, Department of Thoracic Surgery, Kunming 650000, China
| | - Yue-Chun Zhu
- Kunming Medical University, Kunming 650500, China
| | | | - Shu-De Li
- Kunming Medical University, Kunming 650500, China
| | - Guo-Yu Yu
- Kunming Medical University, Kunming 650500, China.
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Abstract
The hemostatic system plays pleiotropic roles in cancer progression by shaping the tumor microenvironment and metastatic niches through thrombin-dependent fibrin deposition and platelet activation. Expanding experimental evidence implicates coagulation protease receptors expressed by tumor cells as additional players that directly influence tumor biology. Pro-angiogenic G protein-coupled signaling of TF through protease activated receptor 2 and regulation of tumor cell and vascular integrins through ligation by alternative spliced TF are established pathways driving tumor progression. Our recent work shows that the endothelial protein C receptor (EPCR), a stem cell marker in hematopoietic, neuronal and epithelial cells, is also crucial for breast cancer growth in the orthotopic microenvironment of the mammary gland. In aggressive triple-negative breast cancer cells, EPCR expression is a characteristic of cancer stem cell-like populations that have tumor initiating properties in vivo. Blocking antibodies to EPCR attenuate in vivo tumor growth and proliferation specifically of EPCR(+) cells on defined integrin matrices in vitro. We also showed that tumor-associated macrophages are a source for upstream coagulation proteases that can activate TF- and EPCR-dependent cellular responses, suggesting that tumor cells utilize the tumor microenvironment for tumor promoting coagulation protease signaling.
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Sitaras N, Rivera JC, Noueihed B, Bien-Aimé M, Zaniolo K, Omri S, Hamel D, Zhu T, Hardy P, Sapieha P, Joyal JS, Chemtob S. Retinal neurons curb inflammation and enhance revascularization in ischemic retinopathies via proteinase-activated receptor-2. THE AMERICAN JOURNAL OF PATHOLOGY 2014; 185:581-95. [PMID: 25478809 DOI: 10.1016/j.ajpath.2014.10.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 09/05/2014] [Accepted: 10/17/2014] [Indexed: 12/22/2022]
Abstract
Ischemic retinopathies are characterized by sequential vaso-obliteration followed by abnormal intravitreal neovascularization predisposing patients to retinal detachment and blindness. Ischemic retinopathies are associated with robust inflammation that leads to generation of IL-1β, which causes vascular degeneration and impairs retinal revascularization in part through the liberation of repulsive guidance cue semaphorin 3A (Sema3A). However, retinal revascularization begins as inflammation culminates in ischemic retinopathies. Because inflammation leads to activation of proteases involved in the formation of vasculature, we hypothesized that proteinase-activated receptor (Par)-2 (official name F2rl1) may modulate deleterious effects of IL-1β. Par2, detected mostly in retinal ganglion cells, was up-regulated in oxygen-induced retinopathy. Surprisingly, oxygen-induced retinopathy-induced vaso-obliteration and neovascularization were unaltered in Par2 knockout mice, suggesting compensatory mechanisms. We therefore conditionally knocked down retinal Par2 with shRNA-Par2-encoded lentivirus. Par2 knockdown interfered with normal revascularization, resulting in pronounced intravitreal neovascularization; conversely, the Par2 agonist peptide (SLIGRL) accelerated normal revascularization. In vitro and in vivo exploration of mechanisms revealed that IL-1β induced Par2 expression, which in turn down-regulated sequentially IL-1 receptor type I and Sema3A expression through Erk/Jnk-dependent processes. Collectively, our findings unveil an important mechanism by which IL-1β regulates its own endothelial cytotoxic actions by augmenting neuronal Par2 expression to repress sequentially IL-1 receptor type I and Sema3A expression. Timely activation of Par2 may be a promising therapeutic avenue in ischemic retinopathies.
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Affiliation(s)
- Nicholas Sitaras
- Department of Pharmacology, CHU Sainte-Justine Hospital, University of Montréal, Montréal, Québec, Canada; Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, Québec, Canada
| | - José Carlos Rivera
- Department of Pharmacology, CHU Sainte-Justine Hospital, University of Montréal, Montréal, Québec, Canada; Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, Québec, Canada.
| | - Baraa Noueihed
- Department of Pharmacology and Therapeutics, McGill University, Montréal, Québec, Canada
| | - Milsa Bien-Aimé
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, Québec, Canada
| | - Karine Zaniolo
- LOEX-CUO Research Center, Saint-Sacrement Hospital, Québec, Québec, Canada
| | - Samy Omri
- Department of Pharmacology, CHU Sainte-Justine Hospital, University of Montréal, Montréal, Québec, Canada; Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, Québec, Canada
| | - David Hamel
- Department of Pharmacology, CHU Sainte-Justine Hospital, University of Montréal, Montréal, Québec, Canada
| | - Tang Zhu
- Department of Pharmacology, CHU Sainte-Justine Hospital, University of Montréal, Montréal, Québec, Canada
| | - Pierre Hardy
- Department of Pediatrics, CHU Sainte-Justine Hospital, University of Montréal, Montréal, Québec, Canada
| | - Przemyslaw Sapieha
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, Québec, Canada
| | - Jean-Sébastien Joyal
- Department of Pharmacology, CHU Sainte-Justine Hospital, University of Montréal, Montréal, Québec, Canada; Department of Pharmacology and Therapeutics, McGill University, Montréal, Québec, Canada; Department of Pediatrics, CHU Sainte-Justine Hospital, University of Montréal, Montréal, Québec, Canada.
| | - Sylvain Chemtob
- Department of Pharmacology, CHU Sainte-Justine Hospital, University of Montréal, Montréal, Québec, Canada; Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, Québec, Canada; Department of Pharmacology and Therapeutics, McGill University, Montréal, Québec, Canada; Department of Pediatrics, CHU Sainte-Justine Hospital, University of Montréal, Montréal, Québec, Canada.
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