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Huizing GJ, Deutschmann IM, Peyré G, Cantini L. Paired single-cell multi-omics data integration with Mowgli. Nat Commun 2023; 14:7711. [PMID: 38001063 PMCID: PMC10673889 DOI: 10.1038/s41467-023-43019-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 10/30/2023] [Indexed: 11/26/2023] Open
Abstract
The profiling of multiple molecular layers from the same set of cells has recently become possible. There is thus a growing need for multi-view learning methods able to jointly analyze these data. We here present Multi-Omics Wasserstein inteGrative anaLysIs (Mowgli), a novel method for the integration of paired multi-omics data with any type and number of omics. Of note, Mowgli combines integrative Nonnegative Matrix Factorization and Optimal Transport, enhancing at the same time the clustering performance and interpretability of integrative Nonnegative Matrix Factorization. We apply Mowgli to multiple paired single-cell multi-omics data profiled with 10X Multiome, CITE-seq, and TEA-seq. Our in-depth benchmark demonstrates that Mowgli's performance is competitive with the state-of-the-art in cell clustering and superior to the state-of-the-art once considering biological interpretability. Mowgli is implemented as a Python package seamlessly integrated within the scverse ecosystem and it is available at http://github.com/cantinilab/mowgli .
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Affiliation(s)
- Geert-Jan Huizing
- Institut Pasteur, Université Paris Cité, CNRS UMR 3738, Machine Learning for Integrative Genomics Group, F-75015, Paris, France.
- Institut de Biologie de l'Ecole Normale Supérieure, CNRS, INSERM, Ecole Normale Supérieure, Université PSL, 75005, Paris, France.
| | - Ina Maria Deutschmann
- Institut de Biologie de l'Ecole Normale Supérieure, CNRS, INSERM, Ecole Normale Supérieure, Université PSL, 75005, Paris, France
| | - Gabriel Peyré
- CNRS and DMA de l'Ecole Normale Supérieure, CNRS, Ecole Normale Supérieure, Université PSL, 75005, Paris, France
| | - Laura Cantini
- Institut Pasteur, Université Paris Cité, CNRS UMR 3738, Machine Learning for Integrative Genomics Group, F-75015, Paris, France.
- Institut de Biologie de l'Ecole Normale Supérieure, CNRS, INSERM, Ecole Normale Supérieure, Université PSL, 75005, Paris, France.
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2
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Klingensmith NJ, Fay KT, Swift DA, Bazzano JM, Lyons JD, Chen CW, Meng M, Ramonell KM, Liang Z, Burd EM, Parkos CA, Ford ML, Coopersmith CM. Junctional adhesion molecule-A deletion increases phagocytosis and improves survival in a murine model of sepsis. JCI Insight 2022; 7:156255. [PMID: 35819838 PMCID: PMC9462501 DOI: 10.1172/jci.insight.156255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 07/07/2022] [Indexed: 11/28/2022] Open
Abstract
Expression of the tight junction–associated protein junctional adhesion molecule-A (JAM-A) is increased in sepsis, although the significance of this is unknown. Here, we show that septic JAM-A –/– mice have increased gut permeability, yet paradoxically have decreased bacteremia and systemic TNF and IL-1β expression. Survival is improved in JAM-A–/– mice. However, intestine-specific JAM-A–/– deletion does not alter mortality, suggesting that the mortality benefit conferred in mice lacking JAM-A is independent of the intestine. Septic JAM-A–/– mice have increased numbers of splenic CD44hiCD4+ T cells, decreased frequency of TNF+CD4+ cells, and elevated frequency of IL-2+CD4+ cells. Septic JAM-A–/– mice have increased numbers of B cells in mesenteric lymph nodes with elevated serum IgA and intraepithelial lymphocyte IgA production. JAM-A–/– × RAG–/– mice have improved survival compared with RAG–/– mice and identical mortality as WT mice. Gut neutrophil infiltration and neutrophil phagocytosis are increased in JAM-A–/– mice, while septic JAM-A–/– mice depleted of neutrophils lose their survival advantage. Therefore, increased bacterial clearance via neutrophils and an altered systemic inflammatory response with increased opsonizing IgA produced through the adaptive immune system results in improved survival in septic JAM-A–/– mice. JAM-A may be a therapeutic target in sepsis via immune mechanisms not related to its role in permeability.
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Affiliation(s)
- Nathan J Klingensmith
- Department of Surgery and Emory Critical Care Center, Emory University School of Medicine, Atlanta, United States of America
| | - Katherine T Fay
- Department of Surgery and Emory Critical Care Center, Emory University School of Medicine, Atlanta, United States of America
| | - David A Swift
- Department of Surgery and Emory Critical Care Center, Emory University School of Medicine, Atlanta, United States of America
| | - Julia Mr Bazzano
- Department of Surgery and Emory Critical Care Center, Emory Univerisity School of Medicine, Atlanta, United States of America
| | - John D Lyons
- Department of Surgery and Emory Critical Care Center, Emory Univerisity School of Medicine, Atlanta, United States of America
| | - Ching-Wen Chen
- Department of Surgery and Emory Critical Care Center, Emory Univerisity School of Medicine, Atlanta, United States of America
| | - Mei Meng
- Department of Surgery and Emory Critical Care Center, Emory Univerisity School of Medicine, Atlanta, United States of America
| | - Kimberly M Ramonell
- Department of Surgery and Emory Critical Care Center, Emory Univerisity School of Medicine, Atlanta, United States of America
| | - Zhe Liang
- Department of Surgery and Emory Critical Care Center, Emory Univerisity School of Medicine, Atlanta, United States of America
| | - Eileen M Burd
- Department of Pathology and Laboratory Medicine, Emory Univerisity School of Medicine, Atlanta, United States of America
| | - Charles A Parkos
- Department of Pathology, University of Michigan, Ann Arbor, United States of America
| | - Mandy L Ford
- Department of Surgery and Emory Critical Care Center, Emory Univerisity School of Medicine, Atlanta, United States of America
| | - Craig M Coopersmith
- Department of Surgery and Emory Critical Care Center, Emory Univerisity School of Medicine, Atlanta, United States of America
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3
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Lauko A, Mu Z, Gutmann DH, Naik UP, Lathia JD. Junctional Adhesion Molecules in Cancer: A Paradigm for the Diverse Functions of Cell-Cell Interactions in Tumor Progression. Cancer Res 2020; 80:4878-4885. [PMID: 32816855 DOI: 10.1158/0008-5472.can-20-1829] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 07/15/2020] [Accepted: 08/07/2020] [Indexed: 01/22/2023]
Abstract
Tight junction (TJ) proteins are essential for mediating interactions between adjacent cells and coordinating cellular and organ responses. Initial investigations into TJ proteins and junctional adhesion molecules (JAM) in cancer suggested a tumor-suppressive role where decreased expression led to increased metastasis. However, recent studies of the JAM family members JAM-A and JAM-C have expanded the roles of these proteins to include protumorigenic functions, including inhibition of apoptosis and promotion of proliferation, cancer stem cell biology, and epithelial-to-mesenchymal transition. JAM function by interacting with other proteins through three distinct molecular mechanisms: direct cell-cell interaction on adjacent cells, stabilization of adjacent cell surface receptors on the same cell, and interactions between JAM and cell surface receptors expressed on adjacent cells. Collectively, these diverse interactions contribute to both the pro- and antitumorigenic functions of JAM. In this review, we discuss these context-dependent functions of JAM in a variety of cancers and highlight key areas that remain poorly understood, including their potentially diverse intracellular signaling networks, their roles in the tumor microenvironment, and the consequences of posttranslational modifications on their function. These studies have implications in furthering our understanding of JAM in cancer and provide a paradigm for exploring additional roles of TJ proteins.
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Affiliation(s)
- Adam Lauko
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio.,Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, Ohio.,Department of Pathology, Case Western Reserve University, Cleveland, Ohio
| | - Zhaomei Mu
- Cardeza Center for Vascular Biology, Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - David H Gutmann
- Washington University School of Medicine, St. Louis, Missouri
| | - Ulhas P Naik
- Cardeza Center for Vascular Biology, Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania.
| | - Justin D Lathia
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio. .,Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, Ohio.,Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio.,Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, Ohio
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4
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Ebnet K. Junctional Adhesion Molecules (JAMs): Cell Adhesion Receptors With Pleiotropic Functions in Cell Physiology and Development. Physiol Rev 2017; 97:1529-1554. [PMID: 28931565 DOI: 10.1152/physrev.00004.2017] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 05/04/2017] [Accepted: 05/11/2017] [Indexed: 02/06/2023] Open
Abstract
Junctional adhesion molecules (JAM)-A, -B and -C are cell-cell adhesion molecules of the immunoglobulin superfamily which are expressed by a variety of tissues, both during development and in the adult organism. Through their extracellular domains, they interact with other adhesion receptors on opposing cells. Through their cytoplasmic domains, they interact with PDZ domain-containing scaffolding and signaling proteins. In combination, these two properties regulate the assembly of signaling complexes at specific sites of cell-cell adhesion. The multitude of molecular interactions has enabled JAMs to adopt distinct cellular functions such as the regulation of cell-cell contact formation, cell migration, or mitotic spindle orientation. Not surprisingly, JAMs regulate diverse processes such as epithelial and endothelial barrier formation, hemostasis, angiogenesis, hematopoiesis, germ cell development, and the development of the central and peripheral nervous system. This review summarizes the recent progress in the understanding of JAMs, including their characteristic structural features, their molecular interactions, their cellular functions, and their contribution to a multitude of processes during vertebrate development and homeostasis.
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Affiliation(s)
- Klaus Ebnet
- Institute-Associated Research Group "Cell Adhesion and Cell Polarity", Institute of Medical Biochemistry, ZMBE, Cells-In-Motion Cluster of Excellence (EXC1003-CiM), and Interdisciplinary Clinical Research Center (IZKF), University of Münster, Münster, Germany
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5
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Ye M, Zhang Q, Xu X, Zhang Q, Ge Y, Geng P, Yan J, Luo L, Sun Y, Liang X. Loss of JAM-C leads to impaired esophageal innervations and megaesophagus in mice. Dis Esophagus 2016; 29:864-871. [PMID: 26123848 DOI: 10.1111/dote.12383] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Megaesophagus is a disease where peristalsis fails to occur properly and esophagus is enlarged. The etiology and mechanism of megaesophagus are not well understood. In this study, we reported that junctional adhesion molecule C (JAM-C) knockout mice on a C57/B6 background developed progressive megaesophagus from embryonic day (E) 15.5 onward with complete penetrance. JAM-C knockout mice exhibited a significant reduction in the number of nerve fibers/ganglia in the wall of the esophagus. However, histological analysis revealed that the esophageal wall thickness and structure of JAM-C knockout mice at embryonic stages and young adult were comparable to that of control littermates. Thus, megaesophagus observed in JAM-C knockout mice could be attributed, at least in part, to impaired esophageal innervations. Our data suggest JAM-C as a potential candidate gene for human megaesophagus, and JAM-C knockout mice might serve as a model for the study of human megaesophagus.
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Affiliation(s)
- M Ye
- Research Center for Translational Medicine, East Hospital, School of Medicine, Tongji University, Shanghai, 200120, China
| | - Q Zhang
- Research Center for Translational Medicine, East Hospital, School of Medicine, Tongji University, Shanghai, 200120, China
| | - X Xu
- Department of Pathology and Pathophysiology, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Q Zhang
- Research Center for Translational Medicine, East Hospital, School of Medicine, Tongji University, Shanghai, 200120, China
| | - Y Ge
- Research Center for Translational Medicine, East Hospital, School of Medicine, Tongji University, Shanghai, 200120, China
| | - P Geng
- Research Center for Translational Medicine, East Hospital, School of Medicine, Tongji University, Shanghai, 200120, China
| | - J Yan
- Research Center for Translational Medicine, East Hospital, School of Medicine, Tongji University, Shanghai, 200120, China
| | - L Luo
- Research Center for Translational Medicine, East Hospital, School of Medicine, Tongji University, Shanghai, 200120, China
| | - Y Sun
- Research Center for Translational Medicine, East Hospital, School of Medicine, Tongji University, Shanghai, 200120, China
| | - X Liang
- Research Center for Translational Medicine, East Hospital, School of Medicine, Tongji University, Shanghai, 200120, China.
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Leinster DA, Colom B, Whiteford JR, Ennis DP, Lockley M, McNeish IA, Aurrand-Lions M, Chavakis T, Imhof BA, Balkwill FR, Nourshargh S. Endothelial cell junctional adhesion molecule C plays a key role in the development of tumors in a murine model of ovarian cancer. FASEB J 2013; 27:4244-53. [PMID: 23825230 PMCID: PMC3819510 DOI: 10.1096/fj.13-230441] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Accepted: 06/24/2013] [Indexed: 01/05/2023]
Abstract
Junctional adhesion molecule C (JAM-C) is a transmembrane protein with significant roles in regulation of endothelial cell (EC) functions, including immune cell recruitment and angiogenesis. As these responses are important in promoting tumor growth, the role of EC JAM-C in tumor development was investigated using the ID8 syngeneic model of ovarian cancer. Within 10-15 wk, intraperitoneally injected ID8 cells form multiple tumor deposits and ascites that resemble human high-grade serous ovarian cancer. Compared to wild-type mice, survival in this model was increased in EC JAM-C knockouts (KOs; 88 vs. 96 d, P=0.04) and reduced in EC JAM-C transgenics (88 vs. 78.5 d, P=0.03), mice deficient in or overexpressing EC JAM-C, respectively. While tumor growth was significantly reduced in EC JAM-C KOs (87% inhibition at 10 wk, P<0.0005), this was not associated with alterations in tumor vessel density or immune cell infiltration. However, tumor microvessels from EC JAM-C-deficient mice exhibited reduced pericyte coverage and increased vascular leakage, suggesting a role for EC JAM-C in the development of functional tumor vessels. These findings provide evidence for a role for EC JAM-C in tumor growth and aggressiveness as well as recruitment of pericytes to newly formed blood vessels in a model of ovarian cancer.
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Affiliation(s)
- David A Leinster
- 2Centre for Microvascular Research, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M6BQ, UK.
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7
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Doñate C, Ody C, McKee T, Ruault-Jungblut S, Fischer N, Ropraz P, Imhof BA, Matthes T. Homing of human B cells to lymphoid organs and B-cell lymphoma engraftment are controlled by cell adhesion molecule JAM-C. Cancer Res 2012; 73:640-51. [PMID: 23221386 DOI: 10.1158/0008-5472.can-12-1756] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Junctional adhesion molecule C (JAM-C) is expressed by vascular endothelium and human but not mouse B lymphocytes. The level of JAM-C expression defines B-cell differentiation stages and allows the classification of marginal zone-derived (JAM-C-positive) and germinal center-derived (JAM-C-negative) B-cell lymphomas. In the present study, we investigated the role of JAM-C in homing of human B cells, using a xenogeneic nonobese diabetic/severe combined immunodeficient mouse model. Treatment with anti-JAM-C antibodies in short-term experiments reduced migration of normal and malignant JAM-C-expressing B cells to bone marrow, lymph nodes, and spleen. Blocking homing to the spleen is remarkable, as most other antiadhesion antibodies reduce homing of B cells only to bone marrow and lymph nodes. Long-term administration of anti-JAM-C antibodies prevented engraftment of JAM-Cpos lymphoma cells in bone marrow, spleen, and lymph nodes of mice. Plasmon resonance studies identified JAM-B as the major ligand for JAM-C, whereas homotypic JAM-C interactions remained at background levels. Accordingly, anti-JAM-C antibodies blocked adhesion of JAM-C-expressing B cells to their ligand JAM-B, and immunofluorescence analysis showed the expression of JAM-B on murine and human lymphatic endothelial cells. Targeting JAM-C could thus constitute a new therapeutic strategy to prevent lymphoma cells from reaching supportive microenvironments not only in the bone marrow and lymph nodes but also in the spleen.
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Affiliation(s)
- Carmen Doñate
- Hematology Service, University Hospital, Geneva, Switzerland
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Colom B, Poitelon Y, Huang W, Woodfin A, Averill S, Del Carro U, Zambroni D, Brain SD, Perretti M, Ahluwalia A, Priestley JV, Chavakis T, Imhof BA, Feltri ML, Nourshargh S. Schwann cell-specific JAM-C-deficient mice reveal novel expression and functions for JAM-C in peripheral nerves. FASEB J 2011; 26:1064-76. [PMID: 22090315 PMCID: PMC3370675 DOI: 10.1096/fj.11-196220] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Junctional adhesion molecule-C (JAM-C) is an adhesion molecule expressed at junctions between adjacent endothelial and epithelial cells and implicated in multiple inflammatory and vascular responses. In addition, we recently reported on the expression of JAM-C in Schwann cells (SCs) and its importance for the integrity and function of peripheral nerves. To investigate the role of JAM-C in neuronal functions further, mice with a specific deletion of JAM-C in SCs (JAM-C SC KO) were generated. Compared to wild-type (WT) controls, JAM-C SC KO mice showed electrophysiological defects, muscular weakness, and hypersensitivity to mechanical stimuli. In addressing the underlying cause of these defects, nerves from JAM-C SC KO mice were found to have morphological defects in the paranodal region, exhibiting increased nodal length as compared to WTs. The study also reports on previously undetected expressions of JAM-C, namely on perineural cells, and in line with nociception defects of the JAM-C SC KO animals, on finely myelinated sensory nerve fibers. Collectively, the generation and characterization of JAM-C SC KO mice has provided unequivocal evidence for the involvement of SC JAM-C in the fine organization of peripheral nerves and in modulating multiple neuronal responses.
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Affiliation(s)
- Bartomeu Colom
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M6BQ, UK
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9
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Hu DM, Yang Y, Tang W. Treatment with anti-JAM-C mAb attenuates pancreatic and systemic inflammation in mice with acute necrotizing pancreatitis. Shijie Huaren Xiaohua Zazhi 2011; 19:74-77. [DOI: 10.11569/wcjd.v19.i1.74] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate whether anti-JAM-C mAb exerts a protective effect against pancreatic and systemic inflammation in mice with acute necrotizing pancreatitis (ANP).
METHODS: A mouse model of ANP was induced by intraperitoneal injection of cerulein and lipopolysaccharide. ANP mice were divided into three groups: mice undergoing an intraperitoneal injection of anti-JAM-C mAb (anti-JAM-C mAb group), ANP group and those receiving normal saline (NS group). Blood samples were taken to determine serum amylase and TNF-α concentrations, and pancreatic samples was collected for morphological study and histological scoring.
RESULTS: Compared to the ANP group, treatment with anti-JAM-C mAb significantly reduced the severity of pancreatic injury, including edema (1.9 ± 0.1 vs 2.4 ± 0.3, P < 0.05), inflammatory cell infiltration (1.5 ± 0.2 vs 2.4 ± 0.2, P < 0.05), necrosis (1.1 ± 0.2 vs 2.0 ± 0.2, P < 0.05) and hemorrhage (1.0 ± 0.2 vs 1.8 ± 0.2, P < 0.05). In addition, the wet weight, serum amylase and TNF-α concentrations in ANP group were markedly higher than NS group and anti-JAM-C mAb group (348 mg ± 27 mg vs 235 mg ± 24 mg, 286 mg ± 36 mg; 17 985 U/L ± 1 064 U/L vs 1 876 U/L ± 245 U/L, 13 870 U/L ± 988 U/L; 628 ng/L ± 48 ng/L vs 320 ng/L ± 23 ng/L, 58 ng/L ± 13 ng/L, all P < 0.05).
CONCLUSION: Treatment with anti-JAM-C mAb significantly reduces pancreatic and systemic inflammation in mice with ANP.
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Tenan M, Aurrand-Lions M, Widmer V, Alimenti A, Burkhardt K, Lazeyras F, Belkouch MC, Hammel P, Walker PR, Duchosal MA, Imhof BA, Dietrich PY. Cooperative expression of junctional adhesion molecule-C and -B supports growth and invasion of glioma. Glia 2010; 58:524-37. [PMID: 19795504 DOI: 10.1002/glia.20941] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Brain invasion is a biological hallmark of glioma that contributes to its aggressiveness and limits the potential of surgery and irradiation. Deregulated expression of adhesion molecules on glioma cells is thought to contribute to this process. Junctional adhesion molecules (JAMs) include several IgSF members involved in leukocyte trafficking, angiogenesis, and cell polarity. They are expressed mainly by endothelial cells, white blood cells, and platelets. Here, we report JAM-C expression by human gliomas, but not by their normal cellular counterpart. This expression correlates with the expression of genes involved in cytoskeleton remodeling and cell migration. These genes, identified by a transcriptomic approach, include poliovirus receptor and cystein-rich 61, both known to promote glioma invasion, as well as actin filament associated protein, a c-Src binding partner. Gliomas also aberrantly express JAM-B, a high affinity JAM-C ligand. Their interaction activates the c-Src proto-oncogene, a central upstream molecule in the pathways regulating cell migration and invasion. In the tumor microenvironment, this co-expression may thus promote glioma invasion through paracrine stimuli from both tumor cells and endothelial cells. Accordingly, JAM-C/B blocking antibodies impair in vivo glioma growth and invasion, highlighting the potential of JAM-C and JAM-B as new targets for the treatment of human gliomas.
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Affiliation(s)
- Mirna Tenan
- Service of Oncology, Laboratory of Tumor Immunology, Geneva University Hospitals and University of Geneva, 1211 Geneva 14, Switzerland
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Hu DM, Yang Y, Tang W. Expression of JAM-C in different tissues of mice with acute necrotizing pancreatitis. Shijie Huaren Xiaohua Zazhi 2010; 18:81-83. [DOI: 10.11569/wcjd.v18.i1.81] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the expression of junctional adhesion molecule-C (JAM-C) in the pancreas, kidney and lung of mice with acute necrotizing pancreatitis (ANP).
METHODS: Mice were injected intraperitoneally with cerulein and lipopolysaccharide (LPS) to induce ANP. The ANP group was given 6 hourly injections of a supramaximal dose of cerulein (50 μg/kg). After the final cerulein injection, LPS was injected intraperitoneally at a dose of 10 mg/kg. The control group was given the same volume of normal saline solution. Three hours after the final injection, mice were sacrificed. Blood samples were taken from the mice after removing the eyeball to determine the serum amylase concentration, and the pancreas, kidney and lung specimens were removed for morphology study and Western blot to test the expression of JAM-C.
RESULTS: Western blot analysis showed a more than 3-fold increase in JAM-C expression levels in the pancreas, kidney and lung in the ANP group compared with the control group (0.608 ± 0.133 vs 0.176 ± 0.024, 0.718 ± 0.148 vs 0.160 ± 0.027, and 0.654 ± 0.085 vs 0.166 ± 0.039, respectively; all P < 0.05).
CONCLUSION: JAM-C expressed by endothelial cells contributes to the pathophysiology of acute necrotizing pancreatitis and may be used as a target for future clinical interventions.
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Scheiermann C, Colom B, Meda P, Patel NSA, Voisin MB, Marrelli A, Woodfin A, Pitzalis C, Thiemermann C, Aurrand-Lions M, Imhof BA, Nourshargh S. Junctional adhesion molecule-C mediates leukocyte infiltration in response to ischemia reperfusion injury. Arterioscler Thromb Vasc Biol 2009; 29:1509-15. [PMID: 19574560 DOI: 10.1161/atvbaha.109.187559] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
OBJECTIVE Junctional adhesion molecule-C (JAM-C) is an adhesion molecule that has multiple roles in inflammation and vascular biology, but many aspects of its functions under pathological conditions are unknown. Here we investigated the role of JAM-C in leukocyte migration in response to ischemia reperfusion (I/R) injury. METHODS AND RESULTS Pretreatment of mice with soluble JAM-C (sJAM-C), used as a pharmacological blocker of JAM-C-mediated reactions, significantly suppressed leukocyte migration in models of kidney and cremaster muscle I/R injury (39 and 51% inhibition, respectively). Furthermore, in the cremaster muscle model (studied by intravital microscopy), both leukocyte adhesion and transmigration were suppressed in JAM-C-deficient mice (JAM-C(-/-)) and enhanced in mice overexpressing JAM-C in their endothelial cells (ECs). Analysis of JAM-C subcellular expression by immunoelectron microscopy indicated that in I/R-injured tissues, EC JAM-C was redistributed from cytoplasmic vesicles and EC junctional sites to nonjunctional plasma membranes, a response that may account for the role of JAM-C in both leukocyte adhesion and transmigration under conditions of I/R injury. CONCLUSIONS The findings demonstrate a role for EC JAM-C in mediating leukocyte adhesion and transmigration in response to I/R injury and indicate the existence of a novel regulatory mechanism for redistribution and hence function of EC JAM-C in vivo.
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Affiliation(s)
- Christoph Scheiermann
- Barts and The London School of Medicine and Dentistry, Queen Mary University of London, William Harvey Research Institute, London, UK
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13
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Immenschuh S, Naidu S, Chavakis T, Beschmann H, Ludwig RJ, Santoso S. Transcriptional induction of junctional adhesion molecule-C gene expression in activated T cells. J Leukoc Biol 2009; 85:796-803. [PMID: 19204148 DOI: 10.1189/jlb.0708422] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Junctional adhesion molecule (JAM)-C is an Ig superfamily protein, which is involved in the regulation of various inflammatory and vascular events such as transendothelial leukocyte migration. JAM-C is expressed highly on the surface of endothelial cells and platelets, whereas expression in T lymphocytes is not well studied. To investigate the specific gene regulation of JAM-C in T lymphocytes, we determined JAM-C expression in quiescent and activated human T cells. Treatment with the polyclonal T cell activator PHA increased surface and total JAM-C expression in T cells time- and dose-dependently, as determined by flow cytometry and immunoblot analysis. In contrast, no up-regulation of JAM-A in activated T cells was detectable. The highest level of JAM-C up-regulation by PHA was observed in CD3(+)forkhead box P3(+) and CD4(+)CD25(high) T cells. Moreover, TCR activation with combined anti-CD3 and anti-CD28 stimulation induced JAM-C expression in T cells. JAM-C induction occurred at the mRNA level, suggesting a transcriptional regulatory mechanism of JAM-C expression. Accordingly, we studied the regulation of the human JAM-C gene promoter in transiently transfected T cells. Luciferase activity of a JAM-C promoter gene construct with three potential consensus sites for the transcription factor NFAT was induced markedly in activated T cells. Finally, pretreatment with two pharmacological inhibitors of calcineurin, cyclosporin A, and FK-506, but not with MAPK inhibitors, blocked JAM-C induction in activated T cells. In summary, JAM-C is up-regulated in activated human T lymphocytes via a transcriptional mechanism, suggesting a potential role of JAM-C in T cell functions.
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Affiliation(s)
- Stephan Immenschuh
- Institute for Transfusion Medicine, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany.
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Palmer G, Busso N, Aurrand-Lions M, Talabot-Ayer D, Chobaz-Péclat V, Zimmerli C, Hammel P, Imhof BA, Gabay C. Expression and function of junctional adhesion molecule-C in human and experimental arthritis. Arthritis Res Ther 2008; 9:R65. [PMID: 17612407 PMCID: PMC2206366 DOI: 10.1186/ar2223] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2007] [Revised: 06/11/2007] [Accepted: 07/05/2007] [Indexed: 11/19/2022] Open
Abstract
Junctional adhesion molecule-C (JAM-C) is an adhesion molecule involved in transendothelial migration of leukocytes. In this study, we examined JAM-C expression in the synovium and investigated the role of this molecule in two experimental mouse models of arthritis. JAM-C expression was investigated by reverse transcriptase-polymerase chain reaction and immunohistochemistry. The effects of a monoclonal anti-JAM-C antibody were assessed in antigen-induced arthritis (AIA) and K/BxN serum transfer-induced arthritis. JAM-C was expressed by synovial fibroblasts in the lining layer and associated with vessels in the sublining layer in human and mouse arthritic synovial tissue. In human tissue, JAM-C expression was increased in rheumatoid arthritis (RA) as compared to osteoarthritis synovial samples (12.7 ± 1.3 arbitrary units in RA versus 3.3 ± 1.1 in OA; p < 0.05). Treatment of mice with a monoclonal anti-JAM-C antibody decreased the severity of AIA. Neutrophil infiltration into inflamed joints was selectively reduced as compared to T-lymphocyte and macrophage infiltration (0.8 ± 0.3 arbitrary units in anti-JAM-C-treated versus 2.3 ± 0.6 in isotype-matched control antibody-treated mice; p < 0.05). Circulating levels of the acute-phase protein serum amyloid A as well as antigen-specific and concanavalin A-induced spleen T-cell responses were significantly decreased in anti-JAM-C antibody-treated mice. In the serum transfer-induced arthritis model, treatment with the anti-JAM-C antibody delayed the onset of arthritis. JAM-C is highly expressed by synovial fibroblasts in RA. Treatment of mice with an anti-JAM-C antibody significantly reduced the severity of AIA and delayed the onset of serum transfer-induced arthritis, suggesting a role for JAM-C in the pathogenesis of arthritis.
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MESH Headings
- Adoptive Transfer
- Animals
- Antibodies, Blocking/pharmacology
- Arthritis, Experimental/drug therapy
- Arthritis, Experimental/metabolism
- Arthritis, Experimental/pathology
- Arthritis, Rheumatoid/metabolism
- Arthritis, Rheumatoid/pathology
- Cell Adhesion Molecules/genetics
- Cell Adhesion Molecules/immunology
- Cell Adhesion Molecules/metabolism
- Cells, Cultured
- Disease Models, Animal
- Fibroblasts/drug effects
- Fibroblasts/metabolism
- Fibroblasts/pathology
- Gene Expression
- Humans
- Immunoglobulins/genetics
- Immunoglobulins/immunology
- Immunoglobulins/metabolism
- Macrophages
- Male
- Membrane Proteins/genetics
- Membrane Proteins/immunology
- Membrane Proteins/metabolism
- Mice
- Mice, Inbred C57BL
- Mice, Transgenic
- Neutrophils
- Osteoarthritis/metabolism
- Osteoarthritis/pathology
- RNA, Messenger/metabolism
- Serum Amyloid A Protein/analysis
- Spleen/drug effects
- Spleen/pathology
- Synovial Membrane/chemistry
- Synovial Membrane/metabolism
- T-Lymphocytes/drug effects
- T-Lymphocytes/pathology
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Affiliation(s)
- Gaby Palmer
- Division of Rheumatology, Department of Internal Medicine, University Hospital, 26 avenue Beau-Séjour, 1211 Geneva 14, Switzerland and Department of Pathology and Immunology, University of Geneva School of Medicine, 1 rue Michel-Servet, 1211 Geneva 4, Switzerland
| | - Nathalie Busso
- Division of Rheumatology, Department of Medicine, University Hospital, Nestlé 05-5029, 1011 Lausanne, Switzerland
| | - Michel Aurrand-Lions
- Department of Pathology and Immunology, University of Geneva School of Medicine, 1 rue Michel-Servet, 1211 Geneva 4, Switzerland
| | - Dominique Talabot-Ayer
- Division of Rheumatology, Department of Internal Medicine, University Hospital, 26 avenue Beau-Séjour, 1211 Geneva 14, Switzerland and Department of Pathology and Immunology, University of Geneva School of Medicine, 1 rue Michel-Servet, 1211 Geneva 4, Switzerland
| | - Véronique Chobaz-Péclat
- Division of Rheumatology, Department of Medicine, University Hospital, Nestlé 05-5029, 1011 Lausanne, Switzerland
| | - Claudia Zimmerli
- Department of Pathology and Immunology, University of Geneva School of Medicine, 1 rue Michel-Servet, 1211 Geneva 4, Switzerland
| | - Philippe Hammel
- Department of Pathology and Immunology, University of Geneva School of Medicine, 1 rue Michel-Servet, 1211 Geneva 4, Switzerland
| | - Beat A Imhof
- Department of Pathology and Immunology, University of Geneva School of Medicine, 1 rue Michel-Servet, 1211 Geneva 4, Switzerland
| | - Cem Gabay
- Division of Rheumatology, Department of Internal Medicine, University Hospital, 26 avenue Beau-Séjour, 1211 Geneva 14, Switzerland and Department of Pathology and Immunology, University of Geneva School of Medicine, 1 rue Michel-Servet, 1211 Geneva 4, Switzerland
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15
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Affiliation(s)
- Stephen M Jackson
- Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma 73104, USA
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16
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Wallez Y, Huber P. Endothelial adherens and tight junctions in vascular homeostasis, inflammation and angiogenesis. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2007; 1778:794-809. [PMID: 17961505 DOI: 10.1016/j.bbamem.2007.09.003] [Citation(s) in RCA: 322] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 05/25/2007] [Revised: 09/03/2007] [Accepted: 09/05/2007] [Indexed: 11/25/2022]
Abstract
Endothelial cells lining the vessel wall are connected by adherens, tight and gap junctions. These junctional complexes are related to those found at epithelial junctions but with notable changes in terms of specific molecules and organization. Endothelial junctional proteins play important roles in tissue integrity but also in vascular permeability, leukocyte extravasation and angiogenesis. In this review, we will focus on specific mechanisms of endothelial tight and adherens junctions.
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Affiliation(s)
- Yann Wallez
- Vascular Pathophysiology Laboratory, Inserm U882 38054 Grenoble, France
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