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Helou DG, Quach C, Hurrell BP, Li X, Li M, Akbari A, Shen S, Shafiei-Jahani P, Akbari O. LAIR-1 limits macrophage activation in acute inflammatory lung injury. Mucosal Immunol 2023; 16:788-800. [PMID: 37634572 PMCID: PMC10842758 DOI: 10.1016/j.mucimm.2023.08.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 07/31/2023] [Accepted: 08/21/2023] [Indexed: 08/29/2023]
Abstract
Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are serious health problems that manifest as acute respiratory failure in response to different conditions, including viral respiratory infections. Recently, the inhibitory properties of leukocyte-associated immunoglobulin-like receptor-1 (LAIR-1) were demonstrated in allergic and viral airway inflammation. In this study, we investigate the implication of LAIR-1 in ALI/ARDS and explore the underlying mechanisms. Polyinosinic:polycytidylic acid, a synthetic analog of double-stranded RNA, was used to mimic acute inflammation in viral infections. We demonstrate that LAIR-1 is predominantly expressed on macrophages and regulates their recruitment to the lungs as well as their activation in response to polyinosinic:polycytidylic acid. Interestingly, LAIR-1 deficiency increases neutrophil recruitment as well as lung resistance and permeability. In particular, we highlight the capacity of LAIR-1 to regulate the secretion of CXCL10, considered a key marker of macrophage overactivation in acute lung inflammation. We also reveal in COVID-19-induced lung inflammation that LAIR1 is upregulated on lung macrophages in correlation with relevant immune regulatory genes. Altogether, our findings demonstrate the implication of LAIR-1 in the pathogenesis of ALI/ARDS by means of the regulation of macrophages, thereby providing the basis of a novel therapeutic target.
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Affiliation(s)
- Doumet Georges Helou
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA; Université Paris Cité, UFR de Médecine, Inserm U1152, Physiopathologie et épidémiologie des maladies respiratoires, Paris, France
| | - Christine Quach
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Benjamin P Hurrell
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Xin Li
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Meng Li
- USC Libraries Bioinformatics Service, University of Southern California, Los Angeles, California, USA
| | - Amitis Akbari
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Stephen Shen
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Pedram Shafiei-Jahani
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Omid Akbari
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA.
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2
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Small A, Lowe K, Wechalekar MD. Immune checkpoints in rheumatoid arthritis: progress and promise. Front Immunol 2023; 14:1285554. [PMID: 38077329 PMCID: PMC10704353 DOI: 10.3389/fimmu.2023.1285554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 11/07/2023] [Indexed: 12/18/2023] Open
Abstract
Rheumatoid arthritis (RA) is one of the most prevalent autoimmune inflammatory conditions, and while the mechanisms driving pathogenesis are yet to be completely elucidated, self-reactive T cells and immune checkpoint pathways have a clear role. In this review, we provide an overview of the importance of checkpoint pathways in the T cell response and describe the involvement of these in RA development and progression. We discuss the relationship between immune checkpoint therapy in cancer and autoimmune adverse events, draw parallels with the involvement of immune checkpoints in RA pathobiology, summarise emerging research into some of the lesser-known pathways, and the potential of targeting checkpoint-related pathways in future treatment approaches to RA management.
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Affiliation(s)
- Annabelle Small
- Department of Rheumatology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Katie Lowe
- Department of Rheumatology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Mihir D Wechalekar
- Department of Rheumatology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
- Department of Rheumatology, Flinders Medical Centre, Adelaide, SA, Australia
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3
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Zhu J, Fan J, Xia Y, Wang H, Li Y, Feng Z, Fu C. Potential therapeutic targets of macrophages in inhibiting immune damage and fibrotic processes in musculoskeletal diseases. Front Immunol 2023; 14:1219487. [PMID: 37545490 PMCID: PMC10400722 DOI: 10.3389/fimmu.2023.1219487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 07/04/2023] [Indexed: 08/08/2023] Open
Abstract
Macrophages are a heterogeneous cell type with high plasticity, exhibiting unique activation characteristics that modulate the progression and resolution of diseases, serving as a key mediator in maintaining tissue homeostasis. Macrophages display a variety of activation states in response to stimuli in the local environment, with their subpopulations and biological functions being dependent on the local microenvironment. Resident tissue macrophages exhibit distinct transcriptional profiles and functions, all of which are essential for maintaining internal homeostasis. Dysfunctional macrophage subpopulations, or an imbalance in the M1/M2 subpopulation ratio, contribute to the pathogenesis of diseases. In skeletal muscle disorders, immune and inflammatory damage, as well as fibrosis induced by macrophages, are prominent pathological features. Therefore, targeting macrophages is of great significance for maintaining tissue homeostasis and treating skeletal muscle disorders. In this review, we discuss the receptor-ligand interactions regulating macrophages and identify potential targets for inhibiting collateral damage and fibrosis in skeletal muscle disorders. Furthermore, we explore strategies for modulating macrophages to maintain tissue homeostasis.
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Affiliation(s)
- Jianshu Zhu
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China
| | - Jiawei Fan
- Department of Gastroenterology, The First Hospital of Jilin University, Changchun, China
| | - Yuanliang Xia
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China
| | - Hengyi Wang
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China
| | - Yuehong Li
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China
| | - Zijia Feng
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China
| | - Changfeng Fu
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China
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Aung TN, Gavrielatou N, Vathiotis IA, Fernandez AI, Shafi S, Yaghoobi V, Burela S, MacNeil T, Ahmed FS, Myint H, Flies DB, Langermann S, Rimm DL. Quantitative, Spatially Defined Expression of Leukocyte-associated Immunoglobulin-like Receptor in Non-small Cell Lung Cancer. CANCER RESEARCH COMMUNICATIONS 2023; 3:471-482. [PMID: 36960400 PMCID: PMC10029762 DOI: 10.1158/2767-9764.crc-22-0334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/26/2022] [Accepted: 02/16/2023] [Indexed: 02/25/2023]
Abstract
Targeting the interaction of leukocyte-associated immunoglobulin-like receptor-1 (LAIR-1) and its ligands has been shown to reinstate antitumor immunity. In addition, the introduction of the LAIR-1 decoy protein, LAIR-2, sensitizes previously resistant lung tumors to programmed death-1 (PD-1) blockade, indicating the potential of LAIR-1 as an alternative marker for anti-PD-1 resistance in lung cancer. Here, we assessed LAIR-1 as compared with programmed death-ligand 1 (PD-L1) expression in various tumors, with a focus on non-small cell lung cancer (NSCLC) and its histologic subtypes using multiplexed quantitative immunofluorescence (mQIF) in 287 (discovery cohort) and 144 (validation cohort) patients with NSCLC. In addition, using multispectral imaging technology on mQIF images, we evaluated the localization of LAIR-1 on various cell types. We observed that CD14+, CD68+, and CD163+ monocytes and CK+ tumor cells predominantly expressed LAIR-1 more than other cell types. Furthermore, LAIR-1 expression in the tumor compartment was significantly higher in patients with lung adenocarcinoma (LUAD) than those with lung squamous cell carcinoma subtype (**, P = 0.003). Our results indicated that high tumor LAIR-1 expression in patients with LUAD is negatively associated with OS (overall survival, HR = 2.4; *, P = 0.02) highlighting its prognostic value in LUAD but not in other subtypes. The Pearson correlation between LAIR-1 and PD-L1 is 0.31; however, mutual exclusive staining pattern (i.e., several cases were positive for LAIR-1 and negative for PD-L1) was observed. Altogether, our data suggest that the combination therapy of anti-PD-1/PD-L1 with anti-LAIR-1 or the anti-LAIR-1 monotherapy alone may be promising cancer immunotherapeutic strategies. Significance The spatial, quantitative assessment of LAIR-1 in NSCLC shows positive association of OS with high LAIR-1+/CD68+ cell densities and negative association of OS with high LAIR-1 expression in LUAD tumor subtype.
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Affiliation(s)
- Thazin N. Aung
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut
| | - Niki Gavrielatou
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut
- Department of Medicine, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Ioannis A. Vathiotis
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut
- Department of Medicine, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Aileen I. Fernandez
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut
| | - Saba Shafi
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut
| | - Vesal Yaghoobi
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut
| | - Sneha Burela
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut
| | - Tyler MacNeil
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut
| | - Fahad Shabbir Ahmed
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut
| | | | | | - Solomon Langermann
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut
| | - David L. Rimm
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut
- Department of Medicine, Yale University School of Medicine, New Haven, Connecticut
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Van Laethem F, Donaty L, Tchernonog E, Lacheretz-Szablewski V, Russello J, Buthiau D, Almeras M, Moreaux J, Bret C. LAIR1, an ITIM-Containing Receptor Involved in Immune Disorders and in Hematological Neoplasms. Int J Mol Sci 2022; 23:ijms232416136. [PMID: 36555775 PMCID: PMC9788452 DOI: 10.3390/ijms232416136] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 12/11/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
Leukocyte-associated immunoglobulin (Ig)-like receptor 1 (LAIR1, CD305) belongs to the family of immune-inhibitory receptors and is widely expressed on hematopoietic mature cells, particularly on immune cells. Four different types of ligands of LAIR1 have been described, including collagens, suggesting a potential immune-regulatory function on the extracellular matrix. By modulating cytokine secretion and cellular functions, LAIR1 displays distinct patterns of expression among NK cell and T/B lymphocyte subsets during their differentiation and cellular activation and plays a major negative immunoregulatory role. Beyond its implications in physiology, the activity of LAIR1 can be inappropriately involved in various autoimmune or inflammatory disorders and has been implicated in cancer physiopathology, including hematological neoplasms. Its action as an inhibitory receptor can result in the dysregulation of immune cellular responses and in immune escape within the tumor microenvironment. Furthermore, when expressed by tumor cells, LAIR1 can modulate their proliferation or invasion properties, with contradictory pro- or anti-tumoral effects depending on tumor type. In this review, we will focus on its role in normal physiological conditions, as well as during pathological situations, including hematological malignancies. We will also discuss potential therapeutic strategies targeting LAIR1 for the treatment of various autoimmune diseases and cancer settings.
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Affiliation(s)
| | - Lucie Donaty
- Department of Biological Hematology, CHU Montpellier, 34295 Montpellier, France
| | | | - Vanessa Lacheretz-Szablewski
- Department of Biopathology, CHU Montpellier, 34295 Montpellier, France
- Faculty of Medicine, University of Montpellier, 34090 Montpellier, France
| | - Jennifer Russello
- Department of Biological Hematology, CHU Montpellier, 34295 Montpellier, France
| | | | | | - Jérôme Moreaux
- Department of Biological Hematology, CHU Montpellier, 34295 Montpellier, France
- Faculty of Medicine, University of Montpellier, 34090 Montpellier, France
- Institute of Human Genetics, UMR 9002 CNRS-UM, 34396 Montpellier, France
- Institut Universitaire de France (IUF), 75005 Paris, France
| | - Caroline Bret
- Department of Biological Hematology, CHU Montpellier, 34295 Montpellier, France
- Faculty of Medicine, University of Montpellier, 34090 Montpellier, France
- Institute of Human Genetics, UMR 9002 CNRS-UM, 34396 Montpellier, France
- Correspondence: ; Tel.: +33-0467-337-031
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6
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Cytotoxic T Cell Expression of Leukocyte-Associated Immunoglobulin-Like Receptor-1 (LAIR-1) in Viral Hepatitis C-Mediated Hepatocellular Carcinoma. Int J Mol Sci 2022; 23:ijms232012541. [PMID: 36293412 PMCID: PMC9604124 DOI: 10.3390/ijms232012541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 10/10/2022] [Accepted: 10/12/2022] [Indexed: 11/17/2022] Open
Abstract
Virus-related hepatocellular carcinoma (HCC) pathogenesis involves liver inflammation, therefore, despite successful treatment, hepatitis C virus (HCV) may progress to HCC from initiated liver cirrhosis. Cytotoxic T cells (Tcs) are known to be involved in HCV-related cirrhotic complications and HCC pathogenesis. The inhibitory checkpoint leukocyte-associated immunoglobulin-like receptor-1 (LAIR-1) is expressed on Tcs. Therefore, we aimed to determine whether the Tc expression level of LAIR-1 is associated with HCC progression and to evaluate LAIR-1 expression as a noninvasive biomarker for HCC progression in the context of liver cirrhosis related to HCV genotype 4 (G4) in Egyptian patients’ peripheral venous blood liquid biopsy. A total of 64 patients with HCC and 37 patients with liver cirrhosis were enrolled in this case-controlled study, and their LAIR-1 expression on Tc related to the progression of liver cirrhosis was examined and compared to that of the apparently healthy control group (n = 20). LAIR-1 expression was analyzed using flow cytometry. Results: The HCC group had significantly higher LAIR-1 expression on Tc and percentage of Tc positive for LAIR-1 (LAIR-1+Tc%) than the HCV G4-related liver cirrhosis group. LAIR-1+Tc% was correlated with the HCC surrogate tumor marker AFP (r = 0.367, p = 0.001) and insulin resistance and inflammation prognostic ratios/indices. A receiver operating characteristic (ROC) curve revealed that adding LAIR-1+Tc% to AFP can distinguish HCC transformation in the Egyptian patients’ cohort. Upregulated LAIR-1 expression on Tc could be a potential screening noninvasive molecular marker for chronic inflammatory HCV G4 related liver cirrhosis. Moreover, LAIR-1 expression on Tc may be one of the players involved in the progression of liver cirrhosis to HCC.
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7
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Vyas M, Peigney D, Demehri S. Extracellular matrix-natural killer cell interactome: an uncharted territory in health and disease. Curr Opin Immunol 2022; 78:102246. [PMID: 36174410 DOI: 10.1016/j.coi.2022.102246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 08/27/2022] [Indexed: 01/29/2023]
Abstract
Extracellular matrix (ECM) constantly undergoes remodeling to maintain the tissue homeostasis and an impaired ECM remodeling is a hallmark of many diseases, including cancer, infections, and inflammatory disorders. ECM has recently become recognized to regulate the immune response in peripheral tissues. Most immune cells express a diverse array of ECM receptors that, upon engagement by their cognate ECM ligands, can regulate their movement and effector functions. Natural killer (NK) cells are innate lymphocytes capable of mounting a swift cytotoxic immunity against cancer and virally infected cells using germline-encoded activating and inhibitory receptors. Regulation of NK cell effector function by ECM proteins in peripheral tissues is an emerging field with major implications for maintaining tolerance in normal tissues and controlling solid cancers, viral infections, and inflammatory diseases. The development of novel therapeutics targeting ECM-NK cell interplay represents a promising strategy to promote health and combat many diseases affecting solid organs.
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Affiliation(s)
- Maulik Vyas
- Center for Cancer Immunology and Cutaneous Biology Research Center, Department of Dermatology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Domitille Peigney
- Center for Cancer Immunology and Cutaneous Biology Research Center, Department of Dermatology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Shadmehr Demehri
- Center for Cancer Immunology and Cutaneous Biology Research Center, Department of Dermatology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.
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Exploring the R-ISS stage-specific regular networks in the progression of multiple myeloma at single-cell resolution. SCIENCE CHINA. LIFE SCIENCES 2022; 65:1811-1823. [PMID: 35437648 DOI: 10.1007/s11427-021-2097-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 03/22/2022] [Indexed: 10/18/2022]
Abstract
The Revised International Staging System (R-ISS) is a simple and powerful prognostic tool for multiple myeloma (MM). However, heterogeneity in R-ISS stage is still poorly characterised, hampering improvement of treatments. We used single-cell RNA-seq to examine novel cellular heterogeneity and regular networks in nine MM patients stratified by R-ISS. Plasma cells were clustered into nine groups (P1-P9) based on gene expression, where P1-P5 were almost enriched in stage III.PDIA6 was significantly upregulated in P3 and LETM1 was enriched in P1, and they were validated to be upregulated in the MM cell line and in 22 other patients' myeloma cells. Furthermore, in progression, PDIA6 was newly found and verified to be activated by UQCRB through oxidative phosphorylation, while LETM1 was activated by STAT1 via the C-type lectin receptor-signalling pathway. Finally, a subcluster of monocytes was exclusively found in stage III specifically expressed chemokines modulated by ATF3. A few ligand-receptor pairs (CCL3/CCL5/CCL3L1-CCR1) were obviously active in monocyte-plasma communications in stage III. Herein, this study identified novel molecules, networks and crosstalk pairs in different R-ISS stages of MM, providing significant insight for its prognosis and treatment.
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9
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Gaboriaud C, Lorvellec M, Rossi V, Dumestre-Pérard C, Thielens NM. Complement System and Alarmin HMGB1 Crosstalk: For Better or Worse. Front Immunol 2022; 13:869720. [PMID: 35572583 PMCID: PMC9095977 DOI: 10.3389/fimmu.2022.869720] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 04/04/2022] [Indexed: 12/21/2022] Open
Abstract
Our immune system responds to infectious (PAMPs) and tissue damage (DAMPs) signals. The complement system and alarmin High-Mobility Group Box 1 (HMGB1) are two powerful soluble actors of human host defense and immune surveillance. These systems involve molecular cascades and amplification loops for their signaling or activation. Initially activated as alarm raising systems, their function can be finally switched towards inflammation resolution, where they sustain immune maturation and orchestrate repair mechanisms, opening the way back to homeostasis. However, when getting out of control, these defense systems can become deleterious and trigger serious cellular and tissue damage. Therefore, they can be considered as double-edged swords. The close interaction between the complement and HMGB1 pathways is described here, as well as their traditional and non-canonical roles, their functioning at different locations and their independent and collective impact in different systems both in health and disease. Starting from these systems and interplay at the molecular level (when elucidated), we then provide disease examples to better illustrate the signs and consequences of their roles and interaction, highlighting their importance and possible vicious circles in alarm raising and inflammation, both individually or in combination. Although this integrated view may open new therapeutic strategies, future challenges have to be faced because of the remaining unknowns regarding the molecular mechanisms underlying the fragile molecular balance which can drift towards disease or return to homeostasis, as briefly discussed at the end.
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Affiliation(s)
| | | | | | - Chantal Dumestre-Pérard
- Univ. Grenoble Alpes, CEA, CNRS, IBS, Grenoble, France.,Laboratoire d'Immunologie, Pôle de Biologie, CHU Grenoble Alpes, Grenoble, France
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10
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Helou DG, Shafiei-Jahani P, Hurrell BP, Painter JD, Quach C, Howard E, Akbari O. LAIR-1 acts as an immune checkpoint on activated ILC2s and regulates the induction of airway hyperreactivity. J Allergy Clin Immunol 2022; 149:223-236.e6. [PMID: 34144112 PMCID: PMC8674385 DOI: 10.1016/j.jaci.2021.05.042] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 05/24/2021] [Accepted: 05/28/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND Type 2 innate lymphoid cells (ILC2s) are relevant players in type 2 asthma. They initiate eosinophil infiltration and airway hyperreactivity (AHR) through cytokine secretion. Leukocyte-associated immunoglobulin-like receptor 1 (LAIR-1) is an inhibitory receptor considered to be an immune checkpoint in different inflammatory diseases. OBJECTIVE Our aim here was to investigate the expression of LAIR-1 and assess its role in human and murine ILC2s. METHODS Wild-type and LAIR-1 knockout mice were intranasally challenged with IL-33, and pulmonary ILC2s were sorted to perform an ex vivo comparative study based on RNA sequencing and flow cytometry. We next studied the impact of LAIR-1 deficiency on AHR and lung inflammation by using knockout mice and adoptive transfer experiments in Rag2-/-Il2rg-/- mice. Knockdown antisense strategies and humanized mice were used to assess the role of LAIR-1 in human ILC2s. RESULTS We have demonstrated that LAIR-1 is inducible on activated ILC2s and downregulates cytokine secretion and effector function. LAIR-1 signaling in ILC2s was mediated via inhibitory pathways, including SHP1/PI3K/AKT, and LAIR-1 deficiency led to exacerbated ILC2-dependent AHR in IL-33 and Alternaria alternata models. In adoptive transfer experiments, we confirmed the LAIR-1-mediated regulation of ILC2s in vivo. Interestingly, LAIR-1 was expressed and inducible in human ILC2s, and knockdown approaches of Lair1 resulted in higher cytokine production. Finally, engagement of LAIR-1 by physiologic ligand C1q significantly reduced ILC2-dependent AHR in a humanized ILC2 murine model. CONCLUSION Our results unravel a novel regulatory axis in ILC2s with the capacity to reduce allergic AHR and lung inflammation.
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Affiliation(s)
- Doumet Georges Helou
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, Calif
| | - Pedram Shafiei-Jahani
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, Calif
| | - Benjamin P Hurrell
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, Calif
| | - Jacob D Painter
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, Calif
| | - Christine Quach
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, Calif
| | - Emily Howard
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, Calif
| | - Omid Akbari
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, Calif.
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11
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Gu Y, Bi Y, Wei H, Li J, Huang Z, Liao C, Liao W, Huang Y. Expression and clinical significance of inhibitory receptor Leukocyte-associated immunoglobulin-like receptor-1 on peripheral blood T cells of chronic hepatitis B patients: A cross-sectional study. Medicine (Baltimore) 2021; 100:e26667. [PMID: 34398030 PMCID: PMC8294879 DOI: 10.1097/md.0000000000026667] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 06/29/2021] [Indexed: 01/04/2023] Open
Abstract
Leukocyte-associated immunoglobulin-like receptor-1 (LAIR-1) is an inhibitory receptor that is expressed on the surface of multiple immune cells and plays key roles in immune modulation. In patients with chronic hepatitis B (CHB), T cell number and functions are abnormal and the expression of inhibitory receptors is elevated. However, the expression of LAIR-1 on T cells in patients with CHB is still undetermined.We recruited 320 patients with CHB in different disease phases and 17 healthy donors. Serum biochemical and virological examinations were performed for each participant, and their demographic and clinical data were collected. According to the latest American Association for the Study of Liver Disease guidelines, we categorized the patients into 4 groups: immune active, immune tolerant, inactive CHB, and gray zone. Additionally, we tested the expression of LAIR-1 on T cells and T cell subsets using flow cytometry.We observed a significant decrease in LAIR-1 expression on CD3+ T cells and its two subsets (CD4+ and CD8+ T cells) in patients with CHB. LAIR-1 expression on T cells was the lowest in the immune active group. LAIR-1 expression levels on CD4+ and CD8+ T cells showed a significant negative association with hepatitis B virus (HBV) DNA load and were lower in hepatitis B e antigen (HBeAg)-positive patients than in HBeAg-negative patients (P < .05). In addition, LAIR-1 expression levels on CD3+, CD4+, and CD8+ T cells were all negatively associated with liver inflammation and fibrosis parameters, such as alanine aminotransferase and aspartate aminotransferase levels, FibroScan value, and aspartate aminotransferase-to-platelet ratio index score.LAIR-1 expression levels on T cells were associated with HBV DNA load and liver inflammation and fibrosis parameters, indicating that LAIR-1 may play an important regulatory role in HBV-induced T cell immune pathogenesis and may be a therapeutic target for CHB.
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Affiliation(s)
- Yurong Gu
- Department of Infectious Diseases, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yanhua Bi
- Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Huan Wei
- Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jing Li
- Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zexuan Huang
- Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Chunhong Liao
- Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Weixin Liao
- Department of Infectious Diseases, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yuehua Huang
- Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Department of Infectious Diseases, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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12
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Ramos MIP, Tian L, de Ruiter EJ, Song C, Paucarmayta A, Singh A, Elshof E, Vijver SV, Shaik J, Bosiacki J, Cusumano Z, Jensen C, Willumsen N, Karsdal MA, Liu L, Langermann S, Willems S, Flies D, Meyaard L. Cancer immunotherapy by NC410, a LAIR-2 Fc protein blocking human LAIR-collagen interaction. eLife 2021; 10:62927. [PMID: 34121658 PMCID: PMC8225389 DOI: 10.7554/elife.62927] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 06/11/2021] [Indexed: 12/25/2022] Open
Abstract
Collagens are a primary component of the extracellular matrix and are functional ligands for the inhibitory immune receptor leukocyte-associated immunoglobulin-like receptor (LAIR)-1. LAIR-2 is a secreted protein that can act as a decoy receptor by binding collagen with higher affinity than LAIR-1. We propose that collagens promote immune evasion by interacting with LAIR-1 expressed on immune cells, and that LAIR-2 releases LAIR-1-mediated immune suppression. Analysis of public human datasets shows that collagens, LAIR-1 and LAIR-2 have unique and overlapping associations with survival in certain tumors. We designed a dimeric LAIR-2 with a functional IgG1 Fc tail, NC410, and showed that NC410 increases human T cell expansion and effector function in vivo in a mouse xenogeneic-graft versus-host disease model. In humanized mouse tumor models, NC410 reduces tumor growth that is dependent on T cells. Immunohistochemical analysis of human tumors shows that NC410 binds to collagen-rich areas where LAIR-1+ immune cells are localized. Our findings show that NC410 might be a novel strategy for cancer immunotherapy for immune-excluded tumors.
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Affiliation(s)
- M Ines Pascoal Ramos
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands.,Oncode Institute, Utrecht, Netherlands
| | | | | | | | | | - Akashdip Singh
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands.,Oncode Institute, Utrecht, Netherlands
| | - Eline Elshof
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands.,Oncode Institute, Utrecht, Netherlands
| | - Saskia V Vijver
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands.,Oncode Institute, Utrecht, Netherlands
| | | | | | | | | | | | | | | | | | - Stefan Willems
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | | | - Linde Meyaard
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands.,Oncode Institute, Utrecht, Netherlands
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13
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Yabe R, Chung SH, Murayama MA, Kubo S, Shimizu K, Akahori Y, Maruhashi T, Seno A, Kaifu T, Saijo S, Iwakura Y. TARM1 contributes to development of arthritis by activating dendritic cells through recognition of collagens. Nat Commun 2021; 12:94. [PMID: 33397982 PMCID: PMC7782728 DOI: 10.1038/s41467-020-20307-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 11/20/2020] [Indexed: 12/29/2022] Open
Abstract
TARM1 is a member of the leukocyte immunoglobulin-like receptor family and stimulates macrophages and neutrophils in vitro by associating with FcRγ. However, the function of this molecule in the regulation of the immune system is unclear. Here, we show that Tarm1 expression is elevated in the joints of rheumatoid arthritis mouse models, and the development of collagen-induced arthritis (CIA) is suppressed in Tarm1-/- mice. T cell priming against type 2 collagen is suppressed in Tarm1-/- mice and antigen-presenting ability of GM-CSF-induced dendritic cells (GM-DCs) from Tarm1-/- mouse bone marrow cells is impaired. We show that type 2 collagen is a functional ligand for TARM1 on GM-DCs and promotes DC maturation. Furthermore, soluble TARM1-Fc and TARM1-Flag inhibit DC maturation and administration of TARM1-Fc blocks the progression of CIA in mice. These results indicate that TARM1 is an important stimulating factor of dendritic cell maturation and could be a good target for the treatment of autoimmune diseases.
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Affiliation(s)
- Rikio Yabe
- Center for Animal Disease Models, Research Institute for Biomedical Sciences (RIBS), Tokyo University of Science, Noda, Chiba, 278-0022, Japan
- Medical Mycobiology Research Center, Chiba University, Chiba, Chiba, 260-8673, Japan
| | - Soo-Hyun Chung
- Center for Animal Disease Models, Research Institute for Biomedical Sciences (RIBS), Tokyo University of Science, Noda, Chiba, 278-0022, Japan
| | - Masanori A Murayama
- Center for Animal Disease Models, Research Institute for Biomedical Sciences (RIBS), Tokyo University of Science, Noda, Chiba, 278-0022, Japan
| | - Sachiko Kubo
- Center for Animal Disease Models, Research Institute for Biomedical Sciences (RIBS), Tokyo University of Science, Noda, Chiba, 278-0022, Japan
| | - Kenji Shimizu
- Center for Animal Disease Models, Research Institute for Biomedical Sciences (RIBS), Tokyo University of Science, Noda, Chiba, 278-0022, Japan
| | - Yukiko Akahori
- Medical Mycobiology Research Center, Chiba University, Chiba, Chiba, 260-8673, Japan
| | - Takumi Maruhashi
- Center for Animal Disease Models, Research Institute for Biomedical Sciences (RIBS), Tokyo University of Science, Noda, Chiba, 278-0022, Japan
| | - Akimasa Seno
- Center for Animal Disease Models, Research Institute for Biomedical Sciences (RIBS), Tokyo University of Science, Noda, Chiba, 278-0022, Japan
| | - Tomonori Kaifu
- Center for Animal Disease Models, Research Institute for Biomedical Sciences (RIBS), Tokyo University of Science, Noda, Chiba, 278-0022, Japan
| | - Shinobu Saijo
- Medical Mycobiology Research Center, Chiba University, Chiba, Chiba, 260-8673, Japan.
| | - Yoichiro Iwakura
- Center for Animal Disease Models, Research Institute for Biomedical Sciences (RIBS), Tokyo University of Science, Noda, Chiba, 278-0022, Japan.
- Medical Mycobiology Research Center, Chiba University, Chiba, Chiba, 260-8673, Japan.
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14
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McQuitty CE, Williams R, Chokshi S, Urbani L. Immunomodulatory Role of the Extracellular Matrix Within the Liver Disease Microenvironment. Front Immunol 2020; 11:574276. [PMID: 33262757 PMCID: PMC7686550 DOI: 10.3389/fimmu.2020.574276] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 10/14/2020] [Indexed: 12/12/2022] Open
Abstract
Chronic liver disease when accompanied by underlying fibrosis, is characterized by an accumulation of extracellular matrix (ECM) proteins and chronic inflammation. Although traditionally considered as a passive and largely architectural structure, the ECM is now being recognized as a source of potent damage-associated molecular pattern (DAMP)s with immune-active peptides and domains. In parallel, the ECM anchors a range of cytokines, chemokines and growth factors, all of which are capable of modulating immune responses. A growing body of evidence shows that ECM proteins themselves are capable of modulating immunity either directly via ligation with immune cell receptors including integrins and TLRs, or indirectly through release of immunoactive molecules such as cytokines which are stored within the ECM structure. Notably, ECM deposition and remodeling during injury and fibrosis can result in release or formation of ECM-DAMPs within the tissue, which can promote local inflammatory immune response and chemotactic immune cell recruitment and inflammation. It is well described that the ECM and immune response are interlinked and mutually participate in driving fibrosis, although their precise interactions in the context of chronic liver disease are poorly understood. This review aims to describe the known pro-/anti-inflammatory and fibrogenic properties of ECM proteins and DAMPs, with particular reference to the immunomodulatory properties of the ECM in the context of chronic liver disease. Finally, we discuss the importance of developing novel biotechnological platforms based on decellularized ECM-scaffolds, which provide opportunities to directly explore liver ECM-immune cell interactions in greater detail.
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Affiliation(s)
- Claire E. McQuitty
- Institute of Hepatology, Foundation for Liver Research, London, United Kingdom
- Faculty of Life Sciences & Medicine, King’s College London, London, United Kingdom
| | - Roger Williams
- Institute of Hepatology, Foundation for Liver Research, London, United Kingdom
- Faculty of Life Sciences & Medicine, King’s College London, London, United Kingdom
| | - Shilpa Chokshi
- Institute of Hepatology, Foundation for Liver Research, London, United Kingdom
- Faculty of Life Sciences & Medicine, King’s College London, London, United Kingdom
| | - Luca Urbani
- Institute of Hepatology, Foundation for Liver Research, London, United Kingdom
- Faculty of Life Sciences & Medicine, King’s College London, London, United Kingdom
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15
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Hammad R, Hamdino M, El-Nasser AM, Sobhy A, Eldesoky NAR, Mashaal AM, Ali HF. Immunoregulatory complement receptor-1 and leukocyte-associated Ig-like receptor-1 expression on leukocytes in Psoriasis vulgaris. Innate Immun 2020; 26:683-692. [PMID: 32731787 PMCID: PMC7787551 DOI: 10.1177/1753425920942570] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/24/2020] [Accepted: 06/15/2020] [Indexed: 12/12/2022] Open
Abstract
Psoriasis vulgaris (PsV) is an immune-mediated inflammatory disorder with devastating psychosocial consequences. Expression of immunoregulator molecules on leukocytes in PsV remains unclear. Leukocyte-associated Ig-like receptor-1 (LAIR-1) and complement receptor-1 (CR-1) are immunoregulator receptors reported to bind complement component 1q involved in phagocytosis. We aimed to explore if altered leukocyte expression of LAIR-1 and CR-1 is associated with PsV. This case-control study included 36 PsV patients and 36 healthy controls. Neutrophils, monocytes and B and T cells were examined by flow cytometry for LAIR-1 and CR-1 mean fluorescence intensity (MFI) and positive cell percentage. Comparison between both groups revealed a significant decrease in LAIR-1 MFI on neutrophils and T cells (P < 0.001 and P = 0.003, respectively). CR-1 MFI on neutrophils, monocytes and T cells also showed a significant decrease in patients (P = 0.033, P = 0.001 and P = 0.040, respectively). There was a significant positive correlation of LAIR-1 MFI on neutrophils with CR-1 MFI on neutrophils (r = 0.503; P = 0.002) and LAIR-1 MFI on monocytes with CR-1 MFI on monocytes (r = 0.371; P = 0.026). Receiver operating characteristic curves revealed that CR-1 MFI on monocytes had the highest discrimination power to differentiate patients from controls, with 86.1% specificity and 75% sensitivity (P = 0.001). In conclusion, altered leukocytes expression of LAIR-1 and CR-1 is associated with PsV. Down-regulated CR-1 MFI on monocytes is a promising diagnostic biomarker for PsV.
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Affiliation(s)
- Reham Hammad
- Clinical Pathology Department, Faculty of Medicine (for Girls), Al-Azhar University, Egypt
| | - Mervat Hamdino
- Dermatology and Venereology Departmet, Faculty of Medicine (for Girls), Al-Azhar University, Egypt
| | - Asmaa M El-Nasser
- Medical Microbiology and Immunology Department, Faculty of Medicine (for Girls), Al-Azhar University, Egypt
| | - Ali Sobhy
- Clinical Pathology Department, Faculty of Medicine (Assiut), Al-Azhar University, Egypt
| | | | - Alya Mohammad Mashaal
- Immunology, Zoology and Entomology Department, Faculty of Science (for Girls), Al-Azhar University, Egypt
| | - Hany F Ali
- Clinical Pathology Department, Faculty of Medicine (for Boys), Al-Azhar University, Egypt
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16
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Carvalheiro T, Garcia S, Pascoal Ramos MI, Giovannone B, Radstake TRDJ, Marut W, Meyaard L. Leukocyte Associated Immunoglobulin Like Receptor 1 Regulation and Function on Monocytes and Dendritic Cells During Inflammation. Front Immunol 2020; 11:1793. [PMID: 32973751 PMCID: PMC7466540 DOI: 10.3389/fimmu.2020.01793] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 07/06/2020] [Indexed: 12/30/2022] Open
Abstract
Inhibitory receptors are crucial immune regulators and are essential to prevent exacerbated responses, thus contributing to immune homeostasis. Leukocyte associated immunoglobulin like receptor 1 (LAIR-1) is an immune inhibitory receptor which has collagen and collagen domain containing proteins as ligands. LAIR-1 is broadly expressed on immune cells and has a large availability of ligands in both circulation and tissues, implicating a need for tight regulation of this interaction. In the current study, we sought to examine the regulation and function of LAIR-1 on monocyte, dendritic cell (DC) and macrophage subtypes, using different in vitro models. We found that LAIR-1 is highly expressed on intermediate monocytes as well as on plasmacytoid DCs. LAIR-1 is also expressed on skin immune cells, mainly on tissue CD14+ cells, macrophages and CD1c+ DCs. In vitro, monocyte and type-2 conventional DC stimulation leads to LAIR-1 upregulation, which may reflect the importance of LAIR-1 as negative regulator under inflammatory conditions. Indeed, we demonstrate that LAIR-1 ligation on monocytes inhibits toll like receptor (TLR)4 and Interferon (IFN)-α- induced signals. Furthermore, LAIR-1 is downregulated on GM-CSF and IFN-γ monocyte-derived macrophages and monocyte-derived DCs. In addition, LAIR-1 triggering during monocyte derived-DC differentiation results in significant phenotypic changes, as well as a different response to TLR4 and IFN-α stimulation. This indicates a role for LAIR-1 in skewing DC function, which impacts the cytokine expression profile of these cells. In conclusion, we demonstrate that LAIR-1 is consistently upregulated on monocytes and DC during the inflammatory phase of the immune response and tends to restore its expression during the resolution phase. Under inflammatory conditions, LAIR-1 has an inhibitory function, pointing toward to a potential intervention opportunity targeting LAIR-1 in inflammatory conditions.
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Affiliation(s)
- Tiago Carvalheiro
- Center for Translational Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands.,Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
| | - Samuel Garcia
- Center for Translational Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands.,Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands.,Rheumatology & Immuno-Mediated Diseases Research Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, Vigo, Spain.,Rheumatology Department, University Hospital Complex of Vigo, Vigo, Spain
| | - M Inês Pascoal Ramos
- Center for Translational Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands.,Oncode Institute, Utrecht, Netherlands
| | - Barbara Giovannone
- Center for Translational Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands.,Department of Dermatology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Timothy R D J Radstake
- Center for Translational Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands.,Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
| | - Wioleta Marut
- Center for Translational Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands.,Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
| | - Linde Meyaard
- Center for Translational Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands.,Oncode Institute, Utrecht, Netherlands
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17
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Rowley AT, Meli VS, Wu-Woods NJ, Chen EY, Liu WF, Wang SW. Effects of Surface-Bound Collagen-Mimetic Peptides on Macrophage Uptake and Immunomodulation. Front Bioeng Biotechnol 2020; 8:747. [PMID: 32719788 PMCID: PMC7348040 DOI: 10.3389/fbioe.2020.00747] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 06/11/2020] [Indexed: 11/13/2022] Open
Abstract
The interaction between collagen/collagen-like peptides and the commonly expressed immune cell receptor LAIR-1 (leukocyte-associated immunoglobulin-like receptor-1) regulates and directs immune responses throughout the body. Understanding and designing these interactions within the context of biomaterials could advance the development of materials used in medical applications. In this study, we investigate the immunomodulatory effects of biomaterials engineered to display a human collagen III-derived ligand peptide (LAIR1-LP) that targets LAIR-1. Specifically, we examine the effects of LAIR1-LP functionalized surfaces on uptake of polymeric particles and cell debris by macrophages polarized toward inflammatory or healing phenotypes. We observed that culture of macrophages on LAIR1-LP functionalized surfaces increased their uptake of PLGA micro- and nano-particles, as well as apoptotic fibroblasts, while reducing their secretion of TNFα in response to LPS/IFNγ pro-inflammatory stimulation, when compared to cells seeded on control surfaces. To investigate the role of LAIR-1 in the observed LAIR1-LP-induced effects, we used siRNA to knock down LAIR-1 expression and found that cells lacking LAIR-1 exhibited enhanced particle uptake on LAIR1-LP and control surfaces. Furthermore, analysis of gene expression showed that LAIR-1 knockdown led to increase expression of other receptors involved in cell uptake, including CD-36, SRA-1, and beta-2 integrin. Together, our study suggests that LAIR1-LP enhances macrophage uptake potentially through interactions with collagen-domain binding surface receptors, and inhibits inflammation through interaction with LAIR-1.
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Affiliation(s)
- Andrew T Rowley
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, United States
| | - Vijaykumar S Meli
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, United States.,Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, United States
| | - Natalie J Wu-Woods
- Department of Materials Science and Engineering, University of California, Irvine, Irvine, CA, United States
| | - Esther Y Chen
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, United States
| | - Wendy F Liu
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, United States.,Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, United States.,The Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California, Irvine, Irvine, CA, United States
| | - Szu-Wen Wang
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, United States.,Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, United States
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18
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Park JE, Brand DD, Rosloniec EF, Yi AK, Stuart JM, Kang AH, Myers LK. Leukocyte-associated immunoglobulin-like receptor 1 inhibits T-cell signaling by decreasing protein phosphorylation in the T-cell signaling pathway. J Biol Chem 2020; 295:2239-2247. [PMID: 31932281 DOI: 10.1074/jbc.ra119.011150] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 01/09/2020] [Indexed: 12/23/2022] Open
Abstract
Multiple observations implicate T-cell dysregulation as a central event in the pathogenesis of rheumatoid arthritis. Here, we investigated mechanisms for suppressing T-cell activation via the inhibitory receptor leukocyte-associated immunoglobulin-like receptor 1 (LAIR-1). To determine how LAIR-1 affects T-cell receptor (TCR) signaling, we compared 1) T cells from LAIR-1-sufficient and -deficient mice, 2) Jurkat cells expressing either LAIR-1 mutants or C-terminal Src kinase (CSK) mutants, and 3) T cells from mice that contain a CSK transgene susceptible to chemical inhibition. Our results indicated that LAIR-1 engagement by collagen or by complement C1q (C1Q, which contains a collagen-like domain) inhibits TCR signaling by decreasing the phosphorylation of key components in the canonical T-cell signaling pathway, including LCK proto-oncogene SRC family tyrosine kinase (LCK), LYN proto-oncogene SRC family tyrosine kinase (LYN), ζ chain of T-cell receptor-associated protein kinase 70 (ZAP-70), and three mitogen-activated protein kinases (extracellular signal-regulated kinase, c-Jun N-terminal kinase 1/2, and p38). The intracellular region of LAIR-1 contains two immunoreceptor tyrosine-based inhibition motifs that are both phosphorylated by LAIR-1 activation, and immunoprecipitation experiments revealed that Tyr-251 in LAIR-1 binds CSK. Using CRISPR/Cas9-mediated genome editing, we demonstrate that CSK is essential for the LAIR-1-induced inhibition of the human TCR signal transduction. T cells from mice that expressed a PP1 analog-sensitive form of CSK (CskAS) corroborated these findings, and we also found that Tyr-251 is critical for LAIR-1's inhibitory function. We propose that LAIR-1 activation may be a strategy for controlling inflammation and may offer a potential therapeutic approach for managing autoimmune diseases.
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Affiliation(s)
- Jeoung-Eun Park
- Department of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee 38163
| | - David D Brand
- Department of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee 38163; Department of MicrobiologyγÇô-ImmunologyγÇô-Biochemistry, University of Tennessee Health Science Center, Memphis, Tennessee 38163; Research Service, Veterans Affairs Medical Center, Memphis, Tennessee 38104
| | - Edward F Rosloniec
- Department of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee 38163; Research Service, Veterans Affairs Medical Center, Memphis, Tennessee 38104
| | - Ae-Kyung Yi
- Department of MicrobiologyγÇô-ImmunologyγÇô-Biochemistry, University of Tennessee Health Science Center, Memphis, Tennessee 38163
| | - John M Stuart
- Department of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee 38163; Research Service, Veterans Affairs Medical Center, Memphis, Tennessee 38104
| | - Andrew H Kang
- Department of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee 38163; Research Service, Veterans Affairs Medical Center, Memphis, Tennessee 38104
| | - Linda K Myers
- Department of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee 38163.
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19
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Cao Q, Yang S, Lv Q, Liu Y, Li L, Wu X, Qu G, He X, Zhang X, Sun S, Li B, An J, Hu T, Xue J. Five ETS family members, ELF-1, ETV-4, ETV-3L, ETS-1, and ETS-2 upregulate human leukocyte-associated immunoglobulin-like receptor-1 gene basic promoter activity. Aging (Albany NY) 2019; 10:1390-1401. [PMID: 29915163 PMCID: PMC6046229 DOI: 10.18632/aging.101475] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Accepted: 06/10/2018] [Indexed: 12/14/2022]
Abstract
Human leukocyte-associated immunoglobulin-like receptor-1 (LAIR-1), an immunoinhibitory receptor, is expressed on most types of hematopoietic cells and some tumor cells. LAIR-1 plays an inhibitory role in immune cell maturation, differentiation, and activation. LAIR-1 is also involved in some autoimmune diseases and tumors. However, the mechanism controlling the regulation of the LAIR-1 gene is still unknown. In order to elucidate the molecular mechanisms involved in LAIR-1 regulation, in the present study, we cloned and characterized the promoter region of LAIR-1 gene using a series of truncated promoter plasmids in luciferase reporter assays. Our results show that the basic core promoter of LAIR-1 is located within the region -256/-8 relative to the translational start site. Our further studies indicate that five ETS transcription factors: ELF-1, ETV-4, ETV-3L, ETS-1 and ETS-2, can up-regulate the LAIR-1 basic promoter activity. Of these, ETS-2 is the most effective transcription factor. Moreover, ETS-2 was confirmed to interact directly with the basic promoter of LAIR-1. This study presents the first description of regions/factors capable of up-regulation the promoter activity of LAIR-1. This new knowledge contributes to understanding of the molecular mechanisms involved in LAIR-1 associated immune regulation and diseases.
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Affiliation(s)
- Qizhi Cao
- Department of Immunology, School of Basic Medical Sciences, Binzhou Medical University, Shandong 264003, China.,Anti-aging Research Institution, Binzhou Medical University, Shandong 264003, China
| | - Shude Yang
- School of Agriculture, Ludong University, Shandong 264003, China
| | - Qing Lv
- Anti-aging Research Institution, Binzhou Medical University, Shandong 264003, China.,School of Gerontology, Binzhou Medical University, Shandong 264003, China
| | - Yan Liu
- Department of Immunology, School of Basic Medical Sciences, Binzhou Medical University, Shandong 264003, China
| | - Li Li
- Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xiaojie Wu
- Department of Immunology, School of Basic Medical Sciences, Binzhou Medical University, Shandong 264003, China
| | - Guiwu Qu
- Anti-aging Research Institution, Binzhou Medical University, Shandong 264003, China.,School of Gerontology, Binzhou Medical University, Shandong 264003, China
| | - Xiaoli He
- The People's Liberation Army 107 Hospital, Affiliated Hospital of Bin Zhou Medical University, Yantai 264002, China
| | - Xiaoshu Zhang
- Department of Immunology, School of Basic Medical Sciences, Binzhou Medical University, Shandong 264003, China
| | - Shuqin Sun
- School of Gerontology, Binzhou Medical University, Shandong 264003, China
| | - Boqing Li
- Department of Microbiology, School of Basic Medical Sciences, Binzhou Medical University, Shandong 264003, China
| | - Jing An
- School of Medicine, University of California - San Diego, La Jolla, CA 92037, USA
| | - Tao Hu
- Department of Immunology, School of Basic Medical Sciences, Binzhou Medical University, Shandong 264003, China
| | - Jiangnan Xue
- Department of Immunology, School of Basic Medical Sciences, Binzhou Medical University, Shandong 264003, China
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20
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Achieng AO, Guyah B, Cheng Q, Ong'echa JM, Ouma C, Lambert CG, Perkins DJ. Molecular basis of reduced LAIR1 expression in childhood severe malarial anaemia: Implications for leukocyte inhibitory signalling. EBioMedicine 2019; 45:278-289. [PMID: 31257148 PMCID: PMC6642411 DOI: 10.1016/j.ebiom.2019.06.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 06/18/2019] [Accepted: 06/20/2019] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Leukocyte-associated immunoglobulin like receptor-1 (LAIR1) is a transmembrane inhibitory receptor that influences susceptibility to a myriad of inflammatory diseases. Our recent investigations of severe malarial anaemia (SMA) pathogenesis in Kenyan children discovered that novel LAIR1 genetic variants which were associated with decreased LAIR1 transcripts enhanced the longitudinal risk of SMA and all-cause mortality. METHODS To characterize the molecular mechanism(s) responsible for altered LAIR1 signalling in severe malaria, we determined LAIR1 transcripts and protein, sLAIR1, sLAIR2, and complement component 1q (C1q) in children with malarial anaemia, followed by a series of in vitro experiments investigating the LAIR1 signalling cascade. FINDINGS Kenyan children with SMA had elevated circulating levels of soluble LAIR1 (sLAIR1) relative to non-SMA (1.69-fold P < .0001). The LAIR1 antagonist, sLAIR2, was also elevated in the circulation of children with SMA (1.59 fold-change, P < .0001). There was a positive correlation between sLAIR1 and sLAIR2 (ρ = 0.741, P < .0001). Conversely, circulating levels of complement component 1q (C1q), a LAIR1 natural ligand, were lower in SMA (-1.21-fold P = .048). These in vivo findings suggest that reduced membrane-bound LAIR1 expression in SMA is associated with elevated production of sLAIR1, sLAIR2 (antagonist), and limited C1q (agonist) availability. Since reduced LAIR1 transcripts in SMA were associated with increased acquisition of haemozoin (PfHz) by monocytes (P = .028), we explored the relationship between acquisition of intraleukocytic PfHz, LAIR1 expression, and subsequent impacts on leukocyte signalling in cultured PBMCs from malaria-naïve donors stimulated with physiological concentrations of PfHz (10 μg/mL). Phagocytosis of PfHz reduced LAIR1 transcript and protein expression in a time-dependent manner (P < .050), and inhibited LAIR1 signalling through decreased phosphorylation of LAIR1 (P < .0001) and SH2-domain containing phosphatase-1 (SHP-1) (P < .001). This process was associated with NF-κB activation (P < .0001) and enhanced production of IL-6, IL-1β, and TNF-α (all P < .0001). INTERPRETATION Collectively, these findings demonstrate that SMA is characterized by reduced LAIR1 transmembrane expression, reduced C1q, and enhanced production of sLAIR1 and sLAIR2, molecular events which can promote enhanced production of cytokines that contribute to the pathogenesis of SMA. These investigations are important for discovering immune checkpoints that could be future targets of immunotherapy to improve disease outcomes.
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Affiliation(s)
- Angela O Achieng
- University of New Mexico-Kenya Global Health Programs, Kisumu and Siaya, Kenya; Department of Biomedical Sciences and Technology, School of Public Health and Community Development, Maseno University, Maseno, Kenya
| | - Bernard Guyah
- Department of Biomedical Sciences and Technology, School of Public Health and Community Development, Maseno University, Maseno, Kenya
| | - Qiuying Cheng
- University of New Mexico, Center for Global Health, Department of Internal Medicine, NM, USA
| | - John M Ong'echa
- Kenya Medical Research Institute, Centre for Global Health Research, Kisumu, Kenya
| | - Collins Ouma
- University of New Mexico-Kenya Global Health Programs, Kisumu and Siaya, Kenya; Department of Biomedical Sciences and Technology, School of Public Health and Community Development, Maseno University, Maseno, Kenya
| | - Christophe G Lambert
- University of New Mexico, Center for Global Health, Department of Internal Medicine, NM, USA
| | - Douglas J Perkins
- University of New Mexico-Kenya Global Health Programs, Kisumu and Siaya, Kenya; University of New Mexico, Center for Global Health, Department of Internal Medicine, NM, USA.
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21
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Rowley AT, Nagalla RR, Wang S, Liu WF. Extracellular Matrix-Based Strategies for Immunomodulatory Biomaterials Engineering. Adv Healthc Mater 2019; 8:e1801578. [PMID: 30714328 DOI: 10.1002/adhm.201801578] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/08/2019] [Indexed: 12/14/2022]
Abstract
The extracellular matrix (ECM) is a complex and dynamic structural scaffold for cells within tissues and plays an important role in regulating cell function. Recently it has become appreciated that the ECM contains bioactive motifs that can directly modulate immune responses. This review describes strategies for engineering immunomodulatory biomaterials that utilize natural ECM-derived molecules and have the potential to harness the immune system for applications ranging from tissue regeneration to drug delivery. A top-down approach utilizes full-length ECM proteins, including collagen, fibrin, or hyaluronic acid-based materials, as well as matrices derived from decellularized tissue. These materials have the benefit of maintaining natural conformation and structure but are often heterogeneous and encumber precise control. By contrast, a bottom-up approach leverages immunomodulatory domains, such as Arg-Gly-Asp (RGD), matrix metalloproteinase (MMP)-sensitive peptides, or leukocyte-associated immunoglobulin-like receptor-1(LAIR-1) ligands, by incorporating them into synthetic materials. These materials have tunable control over immune cell functions and allow for combinatorial approaches. However, the synthetic approach lacks the full natural context of the original ECM protein. These two approaches provide a broad range of engineering techniques for immunomodulation through material interactions and hold the potential for the development of future therapeutic applications.
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Affiliation(s)
- Andrew T. Rowley
- Department of Chemical and Biomolecular EngineeringUniversity of California Irvine CA 92697 USA
| | - Raji R. Nagalla
- Department of Biomedical EngineeringUniversity of California Irvine CA 92697 USA
| | - Szu‐Wen Wang
- Department of Chemical and Biomolecular EngineeringUniversity of California Irvine CA 92697 USA
- Department of Biomedical EngineeringUniversity of California Irvine CA 92697 USA
- Department of Materials Science and EngineeringUniversity of California Irvine CA 92697 USA
| | - Wendy F. Liu
- Department of Chemical and Biomolecular EngineeringUniversity of California Irvine CA 92697 USA
- Department of Biomedical EngineeringUniversity of California Irvine CA 92697 USA
- The Edwards Lifesciences Center for Advanced Cardiovascular TechnologyUniversity of California Irvine CA 92697 USA
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Expression of LAIR-1 (CD305) on Human Blood Monocytes as a Marker of Hepatic Cirrhosis Progression. J Immunol Res 2019; 2019:2974753. [PMID: 31019980 PMCID: PMC6451821 DOI: 10.1155/2019/2974753] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 01/08/2019] [Accepted: 02/02/2019] [Indexed: 01/15/2023] Open
Abstract
Background and Aim The presumed role of the inhibitory receptor LAIR-1 (CD305) in the inflammatory response suggests that it might contribute to the pathophysiology of chronic inflammatory diseases such as liver cirrhosis. We studied the LAIR-1 expression on liver macrophages and blood monocytes related to the progression of liver cirrhosis. Methods The expression of LAIR-1 was analyzed by immunohistochemistry, flow cytometry, and Western blot. Results We found a decreased number of macrophages expressing LAIR-1 in cirrhotic liver that could be due to a high presence of collagen, ligand of LAIR-1, in the fibrotic tissue which could downregulate its expression or interfere with the immunostaining. The expression of LAIR-1 decreased after cell differentiation, and the total content, but not the cell surface expression, increased after activation in the HL-60 human macrophage in vitro model. Blood monocytes exhibited higher LAIR-1 expression levels in cirrhotic patients, which were evident even in early clinical stages in all monocyte subsets, and greater in the "intermediate" inflammatory monocyte subpopulation. The in vitro activation of human blood monocytes did not increase its expression on the cell surface suggesting that the in vivo increase of LAIR-1 must be the result of a specific combination of stimuli present in cirrhotic patients. This represents an exclusive feature of liver cirrhosis, since blood monocytes from other chronic inflammatory pathologies showed similar or lower LAIR-1 levels compared with those of healthy controls. Conclusions These results may indicate that monocyte LAIR-1 expression is a new biomarker to early detect liver damage caused by chronic inflammation in liver cirrhosis.
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23
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Yang LL, Zhang MJ, Wu L, Mao L, Chen L, Yu GT, Deng WW, Zhang WF, Liu B, Sun WK, Sun ZJ. LAIR-1 overexpression and correlation with advanced pathological grade and immune suppressive status in oral squamous cell carcinoma. Head Neck 2018; 41:1080-1086. [PMID: 30549148 DOI: 10.1002/hed.25539] [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: 03/14/2018] [Revised: 08/02/2018] [Accepted: 10/06/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND This study aims to investigate the characteristic role of inhibitory receptor leukocyte-associated immunoglobulin-like receptor 1 (LAIR-1) in oral squamous cell carcinoma (OSCC). METHODS The expressions of LAIR-1 and other immune-related molecules were detected in a human OSCC tissue microarray. LAIR-1 expression difference among different clinicopathological parameters was analyzed. The correlations of LAIR-1 with several immune-related markers were assessed. RESULTS Compared with dysplasia and oral mucosa, the expression of LAIR-1 was significantly upregulated in the stroma of OSCC, and its overexpression was correlated with advanced pathological grade. Overexpression of LAIR-1 was significantly associated with tumor-associated macrophage and myeloid-derived suppressor cell markers (CD68, CD163; CD33, CD11b), indoleamine 2,3-dioxygenase (IDO) and two immune checkpoints (B7-H3 and VISTA). CONCLUSIONS Overexpression of LAIR-1 was associated with advanced pathological grade and correlated with immune suppressive features in OSCC. Further studies are required to identify the specific immunological role of LAIR-1.
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Affiliation(s)
- Lei-Lei Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral Maxillofacial-Head Neck Oncology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Meng-Jie Zhang
- Department of Stomatology, Jining Medical University, Jining, China
| | - Lei Wu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Liang Mao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Lei Chen
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Guang-Tao Yu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Wei-Wei Deng
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Wen-Feng Zhang
- Department of Oral Maxillofacial-Head Neck Oncology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Bing Liu
- Department of Oral Maxillofacial-Head Neck Oncology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Wei-Ke Sun
- School of Stomatology, Binzhou Medical University, Binzhou, China
| | - Zhi-Jun Sun
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral Maxillofacial-Head Neck Oncology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
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24
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Macrophage depletion with clodronate-containing liposomes affects the incidence and development of rheumatoid arthritis. Z Rheumatol 2018; 78:996-1003. [DOI: 10.1007/s00393-018-0563-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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25
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Farias TDJ, Augusto DG, de Almeida RC, Malheiros D, Petzl-Erler ML. Screening the full leucocyte receptor complex genomic region revealed associations with pemphigus that might be explained by gene regulation. Immunology 2018; 156:86-93. [PMID: 30216441 DOI: 10.1111/imm.13003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 08/31/2018] [Accepted: 09/05/2018] [Indexed: 12/11/2022] Open
Abstract
Pemphigus foliaceus (PF) is a blistering autoimmune skin disease rare in most of the world but endemic in certain regions of Brazil. PF is characterized by the detachment of epidermal cells and the presence of autoantibodies against desmoglein 1. In previous studies, we have shown that genetic polymorphisms and variable expression levels of certain leucocyte receptor complex (LRC) genes were associated with PF. However, the role of the LRC on PF susceptibility remained to be investigated. Here, we analysed 527 tag single nucleotide polymorphisms (SNPs) distributed within the 1·5 Mb LRC. After quality control, a total of 176 SNPs were analysed in 229 patients with PF and 194 controls. Three SNPs were associated with differential susceptibility to PF. The intergenic variant rs465169 [odds ratio (OR) = 1·50; P = 0·004] is located in a region that might regulate several immune-related genes, including VSTM1, LILRB1/2, LAIR1/2, LILRA3/4 and LENG8. The rs35336528 (OR = 3·44; P = 0·009) and rs1865097 (OR = 0·57; P = 0·005) SNPs in LENG8 and FCAR genes, respectively, were also associated with PF. Moreover, we found four haplotypes with SNPs within the KIR3DL2/3, LAIR2 and LILRB1 genes associated with PF (P < 0·05), which corroborate previously reported associations. Thus, our results confirm the importance of the LRC for differential susceptibility to PF and reveal new markers that might influence expression levels of several LRC genes, as well as candidates for further functional studies.
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Affiliation(s)
| | - Danillo G Augusto
- Laboratory of Human Molecular Genetics, Department of Genetics, Federal University of Paraná, Curitiba, Brazil.,Biological Sciences, Universidade Estadual de Santa Cruz, Ilhéus, Brazil
| | - Rodrigo Coutinho de Almeida
- Department of Biomedical Data Sciences, Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Danielle Malheiros
- Laboratory of Human Molecular Genetics, Department of Genetics, Federal University of Paraná, Curitiba, Brazil
| | - Maria Luiza Petzl-Erler
- Laboratory of Human Molecular Genetics, Department of Genetics, Federal University of Paraná, Curitiba, Brazil
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26
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Silencing LAIR-1 in human THP-1 macrophage increases foam cell formation by modulating PPARγ and M2 polarization. Cytokine 2018; 111:194-205. [PMID: 30176557 DOI: 10.1016/j.cyto.2018.08.028] [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: 04/12/2018] [Revised: 08/06/2018] [Accepted: 08/25/2018] [Indexed: 12/22/2022]
Abstract
Formation of macrophage-derived foam cells may mark the initial stages of atherosclerosis. We investigated the association between the expression of the leukocyte-associated immunoglobulin-like receptor 1 (LAIR-1) in macrophages and foam cell formation. A foam cell model was established by incubating THP-1-derived macrophages and bone marrow macrophages (BMMs) with oxidized low-density lipoprotein (ox-LDL). The role of LAIR-1 in foam cell formation was evaluated via Oil Red O staining and Dil-ox-LDL fluorescence intensities. Peroxisome proliferator-activated receptor gamma (PPARγ), cholesterol metabolism-related genes, and the role of LAIR-1 in activating classically activated (M1) and alternatively activated (M2) macrophages were evaluated by qPCR. Additionally, activation of protein-tyrosine phosphatase-1 (SHP-1) and cAMP-response element binding protein (CREB) were detected by western blotting. Results indicated that silencing LAIR-1 in macrophages modulated the SHP-1/CREB/PPARγ pathway, thereby promoting M2 macrophage polarization and increasing foam cell formation. Therefore, Inhibition of LAIR-1 in macrophages may promote foam cell formation and atherosclerosis.
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27
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Jin J, Wang Y, Ma Q, Wang N, Guo W, Jin B, Fang L, Chen L. LAIR-1 activation inhibits inflammatory macrophage phenotype in vitro. Cell Immunol 2018; 331:78-84. [PMID: 29887420 DOI: 10.1016/j.cellimm.2018.05.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 04/25/2018] [Accepted: 05/30/2018] [Indexed: 12/11/2022]
Abstract
Macrophages are key cell types of innate immunity and play a central role in inflammation and host defense. Leukocyte-associated Ig-like receptor-1 (LAIR-1) is highly expressed on macrophages and regulates macrophage functions in several conditions. However, whether LAIR-1 is involved in governing macrophage polarization is still not clear. Here, we investigated the effect of LAIR-1 on macrophage polarization using human macrophage polarization model with THP-1 cells. It was found that LAIR-1 was highly expressed in THP-1 macrophages. IFN-γ reduced LAIR-1 expression in THP-1 macrophages. However, IL-4 did not have an effect on the expression of LAIR-1. Moreover, activation of LAIR-1 significantly inhibited the proinflammatory M1-like macrophage differentiation and promoted alternative activation of macrophages. Therefore, LAIR-1 may play critical roles in macrophage polarization. This study provides a rationale for macrophage polarization and sheds light on homeostatic mechanism in which LAIR-1 activation can terminate inflammation which may be impaired in patients with autoimmune disease.
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Affiliation(s)
- Jingyi Jin
- Department of Immunology, The Fourth Military Medical University, Xi'an 710032, China
| | - Ying Wang
- Department of Stomatology, 307 Hospital, PLA, Beijing 100071, China
| | - Qianli Ma
- Department of Immunology, The Fourth Military Medical University, Xi'an 710032, China
| | - Ning Wang
- Department of Immunology, The Fourth Military Medical University, Xi'an 710032, China
| | - Wenwei Guo
- Department of Immunology, The Fourth Military Medical University, Xi'an 710032, China
| | - Boquan Jin
- Department of Immunology, The Fourth Military Medical University, Xi'an 710032, China
| | - Liang Fang
- Department of Immunology, The Fourth Military Medical University, Xi'an 710032, China.
| | - Lihua Chen
- Department of Immunology, The Fourth Military Medical University, Xi'an 710032, China.
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28
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Zhang Y, Wang S, Dong H, Yi X, Zhang J, Liu X, Zhuang R, Ding Y. LAIR-1 shedding from human fibroblast-like synoviocytes in rheumatoid arthritis following TNF-α stimulation. Clin Exp Immunol 2018; 192:193-205. [PMID: 29328500 DOI: 10.1111/cei.13100] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 12/29/2017] [Accepted: 01/02/2018] [Indexed: 12/14/2022] Open
Abstract
This study examined the expression of the inhibitory receptor, leucocyte-associated immunoglobulin (Ig)-like receptor-1 (LAIR-1) in fibroblast-like synoviocytes (FLS) in rheumatoid arthritis (RA) patients to investigate its potential role in the modulation of inflammatory cytokines, matrix metalloproteinases (MMPs) and invasiveness of synoviocytes. LAIR-1 expression in synovial tissues from RA patients, osteoarthritis patients and healthy donors was analysed by immunohistochemistry. The membrane-bound form (mLAIR-1) was detected by flow cytometry. Factors involved in inflammation and MMP activity in FLS were analysed by quantitative polymerase chain reaction (qPCR). LAIR-1 expression was higher in the synovia of the RA patients than those of the osteoarthritis patients. Co-immunostaining of vimentin/LAIR-1 demonstrated that LAIR-1 was localized mainly in FLS in the RA patients. Surprisingly, primary FLS isolated from the RA patients had low levels of mLAIR-1 expression, with cytoplasmic distribution. The extracellular domain of LAIR-1 was shed from the cell surface in response to tumour necrosis factor (TNF)-α, and this process could be blocked by serine protease inhibitors. Additional experiments indicated that LAIR-1 over-expression reduced FLS invasion considerably, which reduced simultaneously the mRNA levels of interleukin (IL)-6, IL-8 and MMP-13 in the presence of TNF-α. Our study demonstrated that LAIR-1 is an anti-inflammatory molecule, and was up-regulated in FLS in the RA patients; however, cell-surface LAIR-1 could be shed from cells in the inflammatory microenvironment in RA. This may weaken the interaction of LAIR-1 with its ligand, thus reducing the anti-inflammatory effects of LAIR-1. These findings suggested that LAIR-1 may be an important factor involved in the mediation of the progressive joint destruction in RA.
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Affiliation(s)
- Y Zhang
- Transplant Immunology Laboratory, the Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - S Wang
- Orthopedic Department of Tangdu Hospital, the Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - H Dong
- Transplant Immunology Laboratory, the Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - X Yi
- Orthopedic Department of Tangdu Hospital, the Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - J Zhang
- Orthopedic Department of Tangdu Hospital, the Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - X Liu
- Transplant Immunology Laboratory, the Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - R Zhuang
- Transplant Immunology Laboratory, the Fourth Military Medical University, Xi'an, Shaanxi Province, China.,Department of Immunology, the Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - Y Ding
- Orthopedic Department of Tangdu Hospital, the Fourth Military Medical University, Xi'an, Shaanxi Province, China
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29
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Kim YK, Chu SH, Hsieh JY, Kamoku CM, Tenner AJ, Liu WF, Wang SW. Incorporation of a Ligand Peptide for Immune Inhibitory Receptor LAIR-1 on Biomaterial Surfaces Inhibits Macrophage Inflammatory Responses. Adv Healthc Mater 2017; 6. [PMID: 29083540 DOI: 10.1002/adhm.201700707] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 08/22/2017] [Indexed: 01/22/2023]
Abstract
Leukocyte-associated immunoglobulin-like receptor-1 (LAIR-1) is an inhibitory receptor broadly expressed on immune cells, with its ligands residing within the extracellular matrix protein collagen. In this study, surfaces are modified with a LAIR-1 ligand peptide (LP), and it is observed that macrophages cultured on LAIR-1 LP-conjugated surfaces exhibit significantly reduced secretion of inflammatory cytokines in response to proinflammatory stimuli that reflect an injured environment. These downregulated mediators include TNF-α, MIP-1α, MIP-1β, MIP-2, RANTES, and MIG. Knockdown of LAIR-1 using siRNA abrogates this inhibition of cytokine secretion, supporting the specificity of the inhibitory effect to this receptor. These results are the first to demonstrate that integration of LAIR-1 ligands with biomaterials could suppress inflammatory responses.
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Affiliation(s)
- Yoon Kyung Kim
- Department of Chemical Engineering & Materials Science; University of California; Irvine CA 92697 USA
- Department of Biomedical Engineering; University of California; Irvine CA 92697 USA
- The Edwards Lifesciences Center for Advanced Cardiovascular Technology; University of California; Irvine CA 92697 USA
| | - Shu-Hui Chu
- Department of Molecular Biology and Biochemistry; University of California; Irvine CA 92697 USA
| | - Jessica Y. Hsieh
- Department of Biomedical Engineering; University of California; Irvine CA 92697 USA
- The Edwards Lifesciences Center for Advanced Cardiovascular Technology; University of California; Irvine CA 92697 USA
| | - Cody M. Kamoku
- Department of Chemical Engineering & Materials Science; University of California; Irvine CA 92697 USA
| | - Andrea J. Tenner
- Department of Molecular Biology and Biochemistry; University of California; Irvine CA 92697 USA
| | - Wendy F. Liu
- Department of Chemical Engineering & Materials Science; University of California; Irvine CA 92697 USA
- Department of Biomedical Engineering; University of California; Irvine CA 92697 USA
- The Edwards Lifesciences Center for Advanced Cardiovascular Technology; University of California; Irvine CA 92697 USA
| | - Szu-Wen Wang
- Department of Chemical Engineering & Materials Science; University of California; Irvine CA 92697 USA
- Department of Biomedical Engineering; University of California; Irvine CA 92697 USA
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30
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Kim S, Easterling ER, Price LC, Smith SL, Coligan JE, Park JE, Brand DD, Rosloniec EF, Stuart JM, Kang AH, Myers LK. The Role of Leukocyte-Associated Ig-like Receptor-1 in Suppressing Collagen-Induced Arthritis. THE JOURNAL OF IMMUNOLOGY 2017; 199:2692-2700. [PMID: 28887430 DOI: 10.4049/jimmunol.1700271] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 08/10/2017] [Indexed: 11/19/2022]
Abstract
Several observations implicate a critical role for T cell dysregulation as a central problem in rheumatoid arthritis. We investigated a mechanism for suppressing T cell activation by stimulating a natural inhibitory receptor called leukocyte-associated Ig-like receptor-1 (LAIR-1). The collagen-induced arthritis (CIA) model and DR-1 transgenic mice were used to study the importance of LAIR-1 in autoimmune arthritis. Splenocytes from wild-type or LAIR-1-/- mice were stimulated with soluble anti-CD3 Ab in the presence or absence of α1(II) and supernatants were collected for cytokine analysis. B6.DR1 mice were immunized with type II collagen/CFA to induce arthritis and were treated with either the stimulatory mAb to LAIR-1 or a hamster IgG control. Finally, B6.DR1/LAIR-1-/- and B6.DR1/LAIR-1+/+ mice were challenged for CIA and mean severity scores were recorded thrice weekly. Using splenocytes or purified CD4+ cells that were sufficient in LAIR-1, CD3-induced cytokine secretion was significantly suppressed in the presence of collagen, whereas LAIR-1-deficient splenocytes had no attenuation. Treatment with a stimulatory mAb to LAIR-1 also significantly attenuated CIA in the LAIR+/+ mice. When B6.DR1/LAIR-1-/- mice were immunized with type II collagen they developed more severe arthritis and had a greater percentage of affected limbs than the wild-type mice. These data demonstrate that collagen can suppress the T cell cytokine response through the action of LAIR-1. Treatment with stimulating LAIR-1 Abs suppresses CIA whereas B6.DR1/LAIR-1-/- mice develop more severe arthritis than wild-type controls. These data suggest that LAIR-1 may be a potential therapeutic target for suppressing rheumatoid arthritis.
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Affiliation(s)
- Seunghyun Kim
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163
| | - Ellis R Easterling
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163
| | - Lauren C Price
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163
| | - Savannah L Smith
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163
| | - John E Coligan
- Receptor Cell Biology Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, Rockville, MD 20852
| | - Jeoung-Eun Park
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163
| | - David D Brand
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163.,Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN 38163.,Research Service, Veterans Affairs Medical Center, Memphis, TN 38104; and
| | - Edward F Rosloniec
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163.,Research Service, Veterans Affairs Medical Center, Memphis, TN 38104; and
| | - John M Stuart
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163.,Research Service, Veterans Affairs Medical Center, Memphis, TN 38104; and
| | - Andrew H Kang
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163.,Research Service, Veterans Affairs Medical Center, Memphis, TN 38104; and
| | - Linda K Myers
- Division of Rheumatology, Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN 38163
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31
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The leukocyte-associated immunoglobulin (Ig)–like receptor-1 modulating cell apoptosis and inflammatory cytokines secretion in THP-1 cells after Helicobacter pylori infection. Microb Pathog 2017. [DOI: 10.1016/j.micpath.2017.06.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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32
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Eakin AJ, Bustard MJ, McGeough CM, Ahmed T, Bjourson AJ, Gibson DS. Siglec-1 and -2 as potential biomarkers in autoimmune disease. Proteomics Clin Appl 2016; 10:635-44. [DOI: 10.1002/prca.201500069] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 11/25/2015] [Accepted: 01/05/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Amanda J. Eakin
- Northern Ireland Centre for Stratified Medicine; Altnagelvin Hospital Campus; Ulster University; Londonderry Northern Ireland UK
| | - Michael J. Bustard
- Northern Ireland Centre for Stratified Medicine; Altnagelvin Hospital Campus; Ulster University; Londonderry Northern Ireland UK
| | - Cathy M. McGeough
- Northern Ireland Centre for Stratified Medicine; Altnagelvin Hospital Campus; Ulster University; Londonderry Northern Ireland UK
| | - Tahanver Ahmed
- Northern Ireland Centre for Stratified Medicine; Altnagelvin Hospital Campus; Ulster University; Londonderry Northern Ireland UK
| | - Anthony J. Bjourson
- Northern Ireland Centre for Stratified Medicine; Altnagelvin Hospital Campus; Ulster University; Londonderry Northern Ireland UK
| | - David S. Gibson
- Northern Ireland Centre for Stratified Medicine; Altnagelvin Hospital Campus; Ulster University; Londonderry Northern Ireland UK
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33
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Differential gene expression levels might explain association of LAIR2 polymorphisms with pemphigus. Hum Genet 2015; 135:233-44. [PMID: 26721477 DOI: 10.1007/s00439-015-1626-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 12/11/2015] [Indexed: 12/11/2022]
Abstract
The leukocyte-associated immunoglobulin-like receptor 1 (LAIR-1) is a collagen-binding inhibitory receptor important for the regulation of immune responses, expressed on the majority of peripheral blood mononuclear cells (PBMC). LAIR-2 is a soluble homolog that antagonizes LAIR-1 inhibitory function by binding the same ligands. We sought to investigate whether LAIR1 and LAIR2 single nucleotide polymorphisms (SNP) are associated with differential mRNA expression levels. We analyzed 14 SNPs of LAIR1 (6) and LAIR2 (8) by mass spectrometry-based genotyping and extracted mRNA from PBMC of 177 healthy subjects, followed by quantitative assays. Four SNPs of LAIR1 and two SNPs of LAIR2 mark differential mRNA levels in healthy individuals. To verify the biological relevance of these findings, we analyzed additional 515 individuals (282 patients and 233 controls) to check if LAIR1 and LAIR2 differential mRNA expression could be related to susceptibility to pemphigus foliaceus (PF), an autoimmune blistering skin disease endemic in Brazil. Two LAIR1 variants (rs56802430 G, OR = 1.52, p = 0.0329; rs11084332 C, OR = 0.57, p = 0.0022) and one LAIR2 (rs2287828 T+, OR = 1.9, p = 0.0097) contribute to differential susceptibility to PF. Furthermore, we demonstrate interactions among four LAIR2 SNPs (rs2042287, rs2287828, rs2277974 and rs114834145). A haplotype harboring these SNPs is strongly associated with higher LAIR2 mRNA levels (4.5-fold, p = 0.0069) and with higher susceptibility to PF (OR = 4.02, p = 0.0008). We suggest that LAIR1 and LAIR2 genetic variants are associated with regulation of gene expression and variable PF susceptibility, and show indirect association of LAIR2 differential mRNA expression with PF pathogenesis. Our data demonstrate how this relatively unknown disease can add invaluable knowledge regarding the role of LAIR1 and LAIR2 in immune responses.
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