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Kobayashi H, Terkawi MA, Ota M, Hasegawa T, Yamamoto T, Shimizu T, Sato D, Fujita R, Murakami T, Amizuka N, Iwasaki N, Takahata M. Involvement of Siglec-15 in regulating RAP1/RAC signaling in cytoskeletal remodeling in osteoclasts mediated by macrophage colony-stimulating factor. Bone Res 2024; 12:35. [PMID: 38849345 PMCID: PMC11161467 DOI: 10.1038/s41413-024-00340-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 04/12/2024] [Accepted: 04/28/2024] [Indexed: 06/09/2024] Open
Abstract
DNAX-associated protein 12 kD size (DAP12) is a dominant immunoreceptor tyrosine-based activation motif (ITAM)-signaling adaptor that activates costimulatory signals essential for osteoclastogenesis. Although several DAP12-associated receptors (DARs) have been identified in osteoclasts, including triggering receptor expressed on myeloid cells 2 (TREM-2), C-type lectin member 5 A (CLEC5A), and sialic acid-binding Ig-like lectin (Siglec)-15, their precise role in the development of osteoclasts and bone remodeling remain poorly understood. In this study, mice deficient in Trem-2, Clec5a, Siglec-15 were generated. In addition, mice double deficient in these DAR genes and FcεRI gamma chain (FcR)γ, an alternative ITAM adaptor to DAP12, were generated. Bone mass analysis was conducted on all mice. Notably, Siglec-15 deficient mice and Siglec-15/FcRγ double deficient mice exhibited mild and severe osteopetrosis respectively. In contrast, other DAR deficient mice showed normal bone phenotype. Likewise, osteoclasts from Siglec-15 deficient mice failed to form an actin ring, suggesting that Siglec-15 promotes bone resorption principally by modulating the cytoskeletal organization of osteoclasts. Furthermore, biochemical analysis revealed that Sigelc-15 activates macrophage colony-stimulating factor (M-CSF)-induced Ras-associated protein-1 (RAP1)/Ras-related C3 botulinum toxin substrate 1 (Rac1) pathway through formation of a complex with p130CAS and CrkII, leading to cytoskeletal remodeling of osteoclasts. Our data provide genetic and biochemical evidence that Siglec-15 facilitates M-CSF-induced cytoskeletal remodeling of the osteoclasts.
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Affiliation(s)
- Hideyuki Kobayashi
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| | - M Alaa Terkawi
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| | - Masahiro Ota
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| | - Tomoka Hasegawa
- Department of Developmental Biology of Hard Tissue, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Tomomaya Yamamoto
- Department of Developmental Biology of Hard Tissue, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Tomohiro Shimizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| | - Dai Sato
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| | - Ryo Fujita
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| | - Toshifumi Murakami
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| | - Norio Amizuka
- Department of Developmental Biology of Hard Tissue, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| | - Masahiko Takahata
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan.
- Department of Orthopaedic Surgery, Dokkyo Medical University, Mibu Shimotsuga, 321-0293, Japan.
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Xie G, Huang C, Jiang S, Li H, Gao Y, Zhang T, Zhang Q, Pavel V, Rahmati M, Li Y. Smoking and osteoimmunology: Understanding the interplay between bone metabolism and immune homeostasis. J Orthop Translat 2024; 46:33-45. [PMID: 38765605 PMCID: PMC11101877 DOI: 10.1016/j.jot.2024.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/07/2024] [Accepted: 04/10/2024] [Indexed: 05/22/2024] Open
Abstract
Smoking continues to pose a global threat to morbidity and mortality in populations. The detrimental impact of smoking on health and disease includes bone destruction and immune disruption in various diseases. Osteoimmunology, which explores the communication between bone metabolism and immune homeostasis, aims to reveal the interaction between the osteoimmune systems in disease development. Smoking impairs the differentiation of mesenchymal stem cells and osteoblasts in bone formation while promoting osteoclast differentiation in bone resorption. Furthermore, smoking stimulates the Th17 response to increase inflammatory and osteoclastogenic cytokines that promote the receptor activator of NF-κB ligand (RANKL) signaling in osteoclasts, thus exacerbating bone destruction in periodontitis and rheumatoid arthritis. The pro-inflammatory role of smoking is also evident in delayed bone fracture healing and osteoarthritis development. The osteoimmunological therapies are promising in treating periodontitis and rheumatoid arthritis, but further research is still required to block the smoking-induced aggravation in these diseases. Translational potential This review summarizes the adverse effect of smoking on mesenchymal stem cells, osteoblasts, and osteoclasts and elucidates the smoking-induced exacerbation of periodontitis, rheumatoid arthritis, bone fracture healing, and osteoarthritis from an osteoimmune perspective. We also propose the therapeutic potential of osteoimmunological therapies for bone destruction aggravated by smoking.
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Affiliation(s)
- Guangyang Xie
- Deparment of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
- Xiangya School of Medicine, Central South University, Changsha 410083, Hunan, China
| | - Cheng Huang
- Department of Orthopeadics, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Shide Jiang
- The Central Hospital of Yongzhou, Yongzhou, 425000, China
| | - Hengzhen Li
- Deparment of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Yihan Gao
- Deparment of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
- Xiangya School of Medicine, Central South University, Changsha 410083, Hunan, China
| | - Tingwei Zhang
- Department of Orthopaedics, Wendeng Zhenggu Hospital of Shandong Province, Weihai, 264400, China
| | - Qidong Zhang
- Department of Orthopeadics, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Volotovski Pavel
- Republican Scientific and Practical Center of Traumatology and Orthopedics, Minsk 220024, Belarus
| | - Masoud Rahmati
- Department of Physical Education and Sport Sciences, Faculty of Literature and Human Sciences, Lorestan University, Khoramabad, Iran
- Department of Physical Education and Sport Sciences, Faculty of Literature and Humanities, Vali-E-Asr University of Rafsanjan, Rafsanjan, Iran
| | - Yusheng Li
- Deparment of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
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Reis E Sousa C, Yamasaki S, Brown GD. Myeloid C-type lectin receptors in innate immune recognition. Immunity 2024; 57:700-717. [PMID: 38599166 DOI: 10.1016/j.immuni.2024.03.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/01/2024] [Accepted: 03/05/2024] [Indexed: 04/12/2024]
Abstract
C-type lectin receptors (CLRs) expressed by myeloid cells constitute a versatile family of receptors that play a key role in innate immune recognition. Myeloid CLRs exhibit a remarkable ability to recognize an extensive array of ligands, from carbohydrates and beyond, and encompass pattern-associated molecular patterns (PAMPs), damage-associated molecular patterns (DAMPs), and markers of altered self. These receptors, classified into distinct subgroups, play pivotal roles in immune recognition and modulation of immune responses. Their intricate signaling pathways orchestrate a spectrum of cellular responses, influencing processes such as phagocytosis, cytokine production, and antigen presentation. Beyond their contributions to host defense in viral, bacterial, fungal, and parasitic infections, myeloid CLRs have been implicated in non-infectious diseases such as cancer, allergies, and autoimmunity. A nuanced understanding of myeloid CLR interactions with endogenous and microbial triggers is starting to uncover the context-dependent nature of their roles in innate immunity, with implications for therapeutic intervention.
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Affiliation(s)
- Caetano Reis E Sousa
- Immunobiology Laboratory, The Francis Crick Institute, 1 Midland Road, NW1 1AT London, UK.
| | - Sho Yamasaki
- Molecular Immunology, Research Institute for Microbial Diseases, Immunology Frontier Research Center (IFReC), Osaka University, Suita 565-0871, Japan.
| | - Gordon D Brown
- MRC Centre for Medical Mycology at the University of Exeter, Geoffrey Pope Building, Stocker Road, Exeter EX4 4QD, UK.
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Chen JC, Goodrich JA, Walker DI, Liao J, Costello E, Alderete TL, Valvi D, Hampson H, Li S, Baumert BO, Rock S, Jones DP, Eckel SP, McConnell R, Gilliland FD, Aung MT, Conti DV, Chen Z, Chatzi L. Exposure to per- and polyfluoroalkyl substances and high-throughput proteomics in Hispanic youth. ENVIRONMENT INTERNATIONAL 2024; 186:108601. [PMID: 38537583 DOI: 10.1016/j.envint.2024.108601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 03/20/2024] [Accepted: 03/22/2024] [Indexed: 04/26/2024]
Abstract
BACKGROUND Strong epidemiological evidence shows positive associations between exposure to per- and polyfluoroalkyl substances (PFAS) and adverse cardiometabolic outcomes (e.g., diabetes, hypertension, and dyslipidemia). However, the underlying cardiometabolic-relevant biological activities of PFAS in humans remain largely unclear. AIM We evaluated the associations of PFAS exposure with high-throughput proteomics in Hispanic youth. MATERIAL AND METHODS We included 312 overweight/obese adolescents from the Study of Latino Adolescents at Risk (SOLAR) between 2001 and 2012, along with 137 young adults from the Metabolic and Asthma Incidence Research (Meta-AIR) between 2014 and 2018. Plasma PFAS (i.e., PFOS, PFOA, PFHxS, PFHpS, PFNA) were quantified using liquid-chromatography high-resolution mass spectrometry. Plasma proteins (n = 334) were measured utilizing the proximity extension assay using an Olink Explore Cardiometabolic Panel I. We conducted linear regression with covariate adjustment to identify PFAS-associated proteins. Ingenuity Pathway Analysis, protein-protein interaction network analysis, and protein annotation were used to investigate alterations in biological functions and protein clusters. RESULTS Results after adjusting for multiple comparisons showed 13 significant PFAS-associated proteins in SOLAR and six in Meta-AIR, sharing similar functions in inflammation, immunity, and oxidative stress. In SOLAR, PFNA demonstrated significant positive associations with the largest number of proteins, including ACP5, CLEC1A, HMOX1, LRP11, MCAM, SPARCL1, and SSC5D. After considering the mixture effect of PFAS, only SSC5D remained significant. In Meta-AIR, PFAS mixtures showed positive associations with GDF15 and IL6. Exploratory analysis showed similar findings. Specifically, pathway analysis in SOLAR showed PFOA- and PFNA-associated activation of immune-related pathways, and PFNA-associated activation of inflammatory response. In Meta-AIR, PFHxS-associated activation of dendric cell maturation was found. Moreover, PFAS was associated with common protein clusters of immunoregulatory interactions and JAK-STAT signaling in both cohorts. CONCLUSION PFAS was associated with broad alterations of the proteomic profiles linked to pro-inflammation and immunoregulation. The biological functions of these proteins provide insight into potential molecular mechanisms of PFAS toxicity.
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Affiliation(s)
- Jiawen Carmen Chen
- Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, CA, United States.
| | - Jesse A Goodrich
- Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, CA, United States
| | - Douglas I Walker
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Jiawen Liao
- Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, CA, United States
| | - Elizabeth Costello
- Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, CA, United States
| | - Tanya L Alderete
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
| | - Damaskini Valvi
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Hailey Hampson
- Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, CA, United States
| | - Shiwen Li
- Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, CA, United States
| | - Brittney O Baumert
- Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, CA, United States
| | - Sarah Rock
- Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, CA, United States
| | - Dean P Jones
- Clinical Biomarkers Laboratory, Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Emory University, Atlanta, GA, United States
| | - Sandrah P Eckel
- Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, CA, United States
| | - Rob McConnell
- Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, CA, United States
| | - Frank D Gilliland
- Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, CA, United States
| | - Max T Aung
- Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, CA, United States
| | - David V Conti
- Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, CA, United States
| | - Zhanghua Chen
- Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, CA, United States
| | - Lida Chatzi
- Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, CA, United States
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Furuya H, Nguyen CT, Chan T, Marusina AI, Merleev AA, Garcia-Hernandez MDLL, Hsieh SL, Tsokos GC, Ritchlin CT, Tagkopoulos I, Maverakis E, Adamopoulos IE. IL-23 induces CLEC5A + IL-17A + neutrophils and elicit skin inflammation associated with psoriatic arthritis. J Autoimmun 2024; 143:103167. [PMID: 38301504 PMCID: PMC10981569 DOI: 10.1016/j.jaut.2024.103167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 01/04/2024] [Accepted: 01/09/2024] [Indexed: 02/03/2024]
Abstract
IL-23-activation of IL-17 producing T cells is involved in many rheumatic diseases. Herein, we investigate the role of IL-23 in the activation of myeloid cell subsets that contribute to skin inflammation in mice and man. IL-23 gene transfer in WT, IL-23RGFP reporter mice and subsequent analysis with spectral cytometry show that IL-23 regulates early innate immune events by inducing the expansion of a myeloid MDL1+CD11b+Ly6G+ population that dictates epidermal hyperplasia, acanthosis, and parakeratosis; hallmark pathologic features of psoriasis. Genetic ablation of MDL-1, a major PU.1 transcriptional target during myeloid differentiation exclusively expressed in myeloid cells, completely prevents IL-23-pathology. Moreover, we show that IL-23-induced myeloid subsets are also capable of producing IL-17A and IL-23R+MDL1+ cells are present in the involved skin of psoriasis patients and gene expression correlations between IL-23 and MDL-1 have been validated in multiple patient cohorts. Collectively, our data demonstrate a novel role of IL-23 in MDL-1-myelopoiesis that is responsible for skin inflammation and related pathologies. Our data open a new avenue of investigations regarding the role of IL-23 in the activation of myeloid immunoreceptors and their role in autoimmunity.
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Affiliation(s)
- Hiroki Furuya
- Department of Rheumatology and Clinical Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA
| | - Cuong Thach Nguyen
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, USA
| | - Trevor Chan
- Department of Computer Science, University of California, Davis, CA, USA; Genome Center, University of California, Davis, CA, USA
| | - Alina I Marusina
- Department of Dermatology, University of California, Davis, Sacramento, USA
| | | | | | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Nankang, Taipei, Taiwan
| | - George C Tsokos
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, USA
| | - Christopher T Ritchlin
- Division of Allergy, Immunology & Rheumatology, University of Rochester Medical School, NY, USA
| | - Ilias Tagkopoulos
- Department of Computer Science, University of California, Davis, CA, USA; Process Integration and Predictive Analytics, PIPA LLC, CA, USA
| | - Emanual Maverakis
- Department of Dermatology, University of California, Davis, Sacramento, USA
| | - Iannis E Adamopoulos
- Department of Rheumatology and Clinical Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA; Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, USA.
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Legaki E, Koutouratsas T, Theocharopoulos C, Lagkada V, Gazouli M. Polymorphisms in CLEC5A and CLEC7A genes modify risk for inflammatory bowel disease. Ann Gastroenterol 2024; 37:64-70. [PMID: 38223252 PMCID: PMC10785015 DOI: 10.20524/aog.2024.0843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 11/13/2023] [Indexed: 01/16/2024] Open
Abstract
Background Inflammatory bowel disease (IBD) seems to arise from an interplay between genetic and environmental factors. CLEC5A and CLEC7A genes code for 2 members of the C-type lectin receptor superfamily, which participate in the immune response against various pathogens, mediating inflammatory signaling. CLEC5A polymorphisms have been linked to the risk of Crohn's disease (CD), whereas CLEC7A has been implicated in fungal dysbiosis, chemically induced colitis in mice and undertreated ulcerative colitis (UC) in humans. This study aimed to explore how specific CLEC5A and CLEC7A polymorphisms contribute to the development of CD and UC. Methods One hundred twelve CD patients, 94 UC patients and 164 sex- and age- matched healthy individuals were genotyped for the single nucleotide polymorphisms rs2078178 and rs16910631 of the CLEC7A gene, and rs1285933 of the CLEC5A gene. Results The CLEC7A rs2078178 AA genotype was more frequent in UC patients compared to healthy individuals, The CLEC7A rs16910631 CT genotype was significantly associated with UC risk compared to healthy individuals, while there was no statistical correlation with CD. The CLEC5A rs1285933 GA genotype was found to be protective against UC and CD, and the AA genotype against CD. Carriers of the rs1285933 A allele appeared to have reduced susceptibility to CD, implying that the presence of the A allele could be protective against CD development. Conclusions This is the first study to correlate the CLEC5A rs1285933 polymorphism with the risk for UC. The rs2078178 AA genotype and the CLEC7A rs16910631 CT could be promising biomarkers for UC susceptibility.
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Affiliation(s)
- Evangelia Legaki
- Laboratory of Biology, Medical School, National and Kapodistrian University of Athens, Greece (Evangelia Legaki, Tilemachos Koutouratsas, Charalampos Theocharopoulos, Vivian Lagkada, Maria Gazouli)
| | - Tilemachos Koutouratsas
- Laboratory of Biology, Medical School, National and Kapodistrian University of Athens, Greece (Evangelia Legaki, Tilemachos Koutouratsas, Charalampos Theocharopoulos, Vivian Lagkada, Maria Gazouli)
| | - Charalampos Theocharopoulos
- Laboratory of Biology, Medical School, National and Kapodistrian University of Athens, Greece (Evangelia Legaki, Tilemachos Koutouratsas, Charalampos Theocharopoulos, Vivian Lagkada, Maria Gazouli)
| | - Vivian Lagkada
- Laboratory of Biology, Medical School, National and Kapodistrian University of Athens, Greece (Evangelia Legaki, Tilemachos Koutouratsas, Charalampos Theocharopoulos, Vivian Lagkada, Maria Gazouli)
| | - Maria Gazouli
- Laboratory of Biology, Medical School, National and Kapodistrian University of Athens, Greece (Evangelia Legaki, Tilemachos Koutouratsas, Charalampos Theocharopoulos, Vivian Lagkada, Maria Gazouli)
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Wang W, Kang L, Li H, Sha X, Li J, He S. Identification of potential biomarkers associated with CD4 + T cell infiltration in myocardial ischemia-reperfusion injury using bioinformation analysis. J Thorac Dis 2023; 15:5613-5624. [PMID: 37969273 PMCID: PMC10636474 DOI: 10.21037/jtd-23-1335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 10/19/2023] [Indexed: 11/17/2023]
Abstract
Background Myocardial ischemia-reperfusion injury (MIRI) is often part of clinical events such as cardiac arrest, resuscitation, and reperfusion after coronary artery occlusion. Recently, more and more studies have shown that the immune microenvironment is an integral part of ischemia-reperfusion injury (IRI), and CD4+ T-cell infiltration plays an important role, but there are no relevant molecular targets for clinical diagnosis and treatment. Methods The transcriptome data and matched group information were retrieved from the Gene Expression Omnibus (GEO) database. The ImmuCellAI-mouse (Immune Cell Abundance Identifier for mouse) algorithm was used to calculate each symbol's CD4+ T cell infiltration score. The time period with the greatest change in the degree of CD4+ T cell infiltration [ischemia-reperfusion 6 hours (IR6h)-ischemia-reperfusion 24 hours (IR24h)] was selected for the next analysis. Weighted gene co-expression network analysis (WGCNA) and differential expression analysis were performed to screen out CD4+ T cell-related genes and from which the gene CLEC5A was screened for the highest correlation with CD4+ T cell infiltration. The potential regulatory mechanism of CD4+ T cells in MIRI was discussed through various enrichment analysis. Finally, we analyzed the expression and molecular function (MF) of CLEC5A and its related genes in MIRI. Results A total of 406 CD4+ T cell-related genes were obtained by intersecting the results of WGCNA and differential expression analysis. Functional enrichment analysis indicated that the CD4+ T cell-related genes were mainly involved in chemokine signaling pathway and cell cycle. By constructing a protein-protein interaction (PPI) network, a total of 12 hub genes were identified as candidate genes for further analysis. Through the correlation analysis between the 12 candidate genes found in the PPI network and CD4+ T cell infiltration fraction, we determined the core gene CLEC5A. Finally, a gene interaction network was constructed to decipher the biological functions of CLEC5A using GeneMANIA. Conclusions In this study, RNA sequencing (RNA-Seq) data at different time points after reperfusion were subjected to a series of bioinformatics methods such as PPI network, WGCNA module, etc., and CLEC5A, a pivotal gene associated with CD4+ T-cells, was found, which may serve as a new target for diagnosis or treatment.
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Affiliation(s)
- Wenmiao Wang
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China
- Graduate School, Shandong University, Jinan, China
| | - Li Kang
- School of Public Health, Nantong University, Nantong, China
| | - Houqiang Li
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Xinyu Sha
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Jing Li
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Shuai He
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China
- School of Public Health, Nantong University, Nantong, China
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Furuya H, Nguyen CT, Gu R, Hsieh SL, Maverakis E, Adamopoulos IE. Interleukin-23 Regulates Inflammatory Osteoclastogenesis via Activation of CLEC5A(+) Osteoclast Precursors. Arthritis Rheumatol 2023; 75:1477-1489. [PMID: 36787107 PMCID: PMC10423744 DOI: 10.1002/art.42478] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 01/12/2023] [Accepted: 02/09/2023] [Indexed: 02/15/2023]
Abstract
OBJECTIVE To investigate the role of interleukin-23 (IL-23) in pathologic bone remodeling in inflammatory arthritis. METHODS In this study we investigated the role of IL-23 in osteoclast differentiation and activation using in vivo gene transfer techniques in wild-type and myeloid DNAX-activation protein 12-associating lectin-1 (MDL-1)-deficient mice, and by performing in vitro and in vivo osteoclastogenesis assays using spectral flow cytometry, micro-computed tomography analysis, Western blotting, and immunoprecipitation. RESULTS Herein, we show that IL-23 induces the expansion of a myeloid osteoclast precursor population and supports osteoclastogenesis and bone resorption in inflammatory arthritis. Genetic ablation of C-type lectin domain family member 5A, also known as MDL-1, prevents the induction of osteoclast precursors by IL-23 that is associated with bone destruction, as commonly observed in inflammatory arthritis. Moreover, osteoclasts derived from the bone marrow of MDL-1-deficient mice showed impaired osteoclastogenesis, and MDL-1-/- mice had increased bone mineral density. CONCLUSION Our data show that IL-23 signaling regulates the availability of osteoclast precursors in inflammatory arthritis that could be effectively targeted for the treatment of inflammatory bone loss in inflammatory arthritis.
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Affiliation(s)
- Hiroki Furuya
- Department of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School
| | - Cuong Thach Nguyen
- Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis
| | - Ran Gu
- Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei, Taiwan
| | - Emanual Maverakis
- Department of Dermatology, University of California, Davis, Sacramento, CA, USA
| | - Iannis E Adamopoulos
- Department of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School
- Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis
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Machado TL, Santos AC, Azamor T, da Silva AMV, Pimenta VR, Tubarão LN, da Silva ADS, Flores Rodrigues DDR, Müller R, Pinto MA, Villar LM, Bom APA, Melgaço JG. CLEC5A expression can be triggered by spike glycoprotein and may be a potential target for COVID-19 therapy. J Med Virol 2023; 95:e28427. [PMID: 36571274 PMCID: PMC9880667 DOI: 10.1002/jmv.28427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 12/02/2022] [Accepted: 12/20/2022] [Indexed: 12/27/2022]
Abstract
The immune response is crucial for coronavirus disease 19 (COVID-19) progression, with the participation of proinflammatory cells and cytokines, inducing lung injury and loss of respiratory function. CLEC5A expression on monocytes can be triggered by viral and bacterial infections, leading to poor outcomes. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is able to induce neutrophil activation by CLEC5A and Toll-like receptor 2, leading to an aggressive inflammatory cascade, but little is known about the molecular interactions between CLEC5A and SARS-CoV-2 proteins. Here, we aimed to explore how CLEC5A expression could be affected by SARS-CoV-2 infection using immunological tools with in vitro, in vivo, and in silico assays. The findings revealed that high levels of CLEC5A expression were found in monocytes from severe COVID-19 patients in comparison with mild COVID-19 and unexposed subjects, but not in vaccinated subjects who developed mild COVID-19. In hamsters, we detected CLEC5A gene expression during 3-15 days of Omicron strain viral challenge. Our results also showed that CLEC5A can interact with SARS-CoV-2, promoting inflammatory cytokine production, probably through an interaction with the receptor-binding domain in the N-acetylglucosamine binding site (NAG-601). The high expression of CLEC5A and high levels of proinflammatory cytokine production were reduced in vitro by a human CLEC5A monoclonal antibody. Finally, CLEC5A was triggered by spike glycoprotein, suggesting its involvement in COVID-19 progression; therapy with a monoclonal antibody could be a good strategy for COVID-19 treatment, but vaccines are still the best option to avoid hospitalization/deaths.
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Affiliation(s)
- Thiago L. Machado
- Instituto de Tecnologia em Imunobiológicos, Bio‐Manguinhos, Fundação Oswaldo Cruz, FiocruzRio de JaneiroBrazil
| | - Alanna C. Santos
- Laboratório de Hepatites Virais, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, FiocruzRio de JaneiroBrazil
| | - Tamiris Azamor
- Instituto de Tecnologia em Imunobiológicos, Bio‐Manguinhos, Fundação Oswaldo Cruz, FiocruzRio de JaneiroBrazil
| | - Andrea M. V. da Silva
- Instituto de Tecnologia em Imunobiológicos, Bio‐Manguinhos, Fundação Oswaldo Cruz, FiocruzRio de JaneiroBrazil
| | - Vanessa R. Pimenta
- Instituto de Tecnologia em Imunobiológicos, Bio‐Manguinhos, Fundação Oswaldo Cruz, FiocruzRio de JaneiroBrazil
| | - Luciana N. Tubarão
- Instituto de Tecnologia em Imunobiológicos, Bio‐Manguinhos, Fundação Oswaldo Cruz, FiocruzRio de JaneiroBrazil
| | - Alexandre dos Santos da Silva
- Laboratório de Desenvolvimento Tecnológico em Virologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, FiocruzRio de JaneiroBrazil
| | | | - Rodrigo Müller
- Instituto de Tecnologia em Imunobiológicos, Bio‐Manguinhos, Fundação Oswaldo Cruz, FiocruzRio de JaneiroBrazil
| | - Marcelo A. Pinto
- Laboratório de Desenvolvimento Tecnológico em Virologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, FiocruzRio de JaneiroBrazil
| | - Livia M. Villar
- Laboratório de Hepatites Virais, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, FiocruzRio de JaneiroBrazil
| | - Ana P. A. Bom
- Instituto de Tecnologia em Imunobiológicos, Bio‐Manguinhos, Fundação Oswaldo Cruz, FiocruzRio de JaneiroBrazil
| | - Juliana G. Melgaço
- Instituto de Tecnologia em Imunobiológicos, Bio‐Manguinhos, Fundação Oswaldo Cruz, FiocruzRio de JaneiroBrazil
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10
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Yasmin T, Adiba M, Saba AA, Nabi AHMN. In Silico Design of siRNAs for Silencing CLEC5A Receptor as a Potential Therapeutic Approach Against Dengue and Japanese Encephalitis Virus Infection in Human. Bioinform Biol Insights 2022; 16:11779322221142122. [PMID: 36530559 PMCID: PMC9749047 DOI: 10.1177/11779322221142122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 11/09/2022] [Indexed: 09/04/2024] Open
Abstract
Dengue and Japanese encephalitis virus (JEV) are mosquito-borne RNA viruses that can cause severe illness leading to death in the tropics and subtropics. Both of these viruses interact directly with the C-type lectin domain family 5, member A receptor (CLEC5A) on human macrophages which stimulates the release of proinflammatory cytokines. Since blockade of this interaction has been shown to suppress the secretion of cytokines, CLEC5A is considered a potential target for the development of new treatments to reduce virus-induced brain damage. Developing a vaccine against dengue is challenging because this virus can cause disease through 4 different serotypes. Therefore, the vaccine must immunize against all 4 serotypes to be effective, while unvaccinated people still contract JEV and suffer from its complications. Small interfering RNAs (siRNAs) play an important role in regulating gene expression by causing the degradation of target mRNAs. In this study, we attempted to rationally design potential siRNA molecules using various software, targeting the CLEC5A gene. In total, 3 siRNAs were found to be potential candidates for CLEC5A silencing. They showed good target accessibility, optimum guanine-cytosine (GC) content, the least chance of off-target effects, positive energy of folding, and strong interaction with Argonaute2 protein as denoted by a negative docking energy score. In addition, molecular dynamics simulation of the siRNA-Ago2-docked complexes showed the stability of the complexes over 1.5 nanoseconds. These predicted siRNAs might effectively downregulate the expression of the CLEC5A receptor and thus prove vital in the treatment of dengue and JEV infections.
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Affiliation(s)
- Tahirah Yasmin
- Laboratory of Population Genetics, Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, Bangladesh
| | - Maisha Adiba
- Laboratory of Population Genetics, Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, Bangladesh
| | - Abdullah Al Saba
- Laboratory of Population Genetics, Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, Bangladesh
| | - AHM Nurun Nabi
- Laboratory of Population Genetics, Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, Bangladesh
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11
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Liu ACH, Cathelin S, Yang Y, Dai DL, Ayyathan DM, Hosseini M, Minden MD, Tierens A, Chan SM. Targeting STAT5 Signaling Overcomes Resistance to IDH Inhibitors in Acute Myeloid Leukemia through Suppression of Stemness. Cancer Res 2022; 82:4325-4339. [PMID: 36150062 DOI: 10.1158/0008-5472.can-22-1293] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 08/01/2022] [Accepted: 09/21/2022] [Indexed: 01/24/2023]
Abstract
Mutant isocitrate dehydrogenase 1 (IDH1) and IDH2 block the differentiation of acute myeloid leukemia (AML) cells through production of R-2-hydroxyglutarate (R-2-HG). IDH inhibitors can induce differentiation of AML cells by lowering R-2-HG but have limited clinical efficacy as single agents. Here, we performed a genome-wide CRISPR knockout screen in an Idh1-mutated hematopoietic progenitor cell line to identify genes that increased the differentiation response to ivosidenib, an IDH1 inhibitor. The screen identified C-type lectin member 5a (Clec5a), which encodes a spleen tyrosine kinase (SYK)-coupled surface receptor, as one of the top hits. Knockout of Clec5a and Syk rendered cells more sensitive to ivosidenib-induced differentiation through a reduction in STAT5-dependent expression of stemness-related genes, including genes in the homeobox (HOX) family. Importantly, direct inhibition of STAT5 activity was sufficient to increase the differentiation response to IDH inhibitors in primary human IDH1- and IDH2-mutated AML cells, including those harboring mutations in receptor tyrosine kinase (RTK) and MAPK genes that have been linked to drug resistance. In patient-derived xenograft models of IDH1-mutated AML, combination treatment with ivosidenib and the STAT5 inhibitor pimozide was superior to each agent alone in inducing differentiation in leukemic cells without compromising normal hematopoiesis. These findings demonstrate that STAT5 is a critical mediator of resistance to IDH inhibitors and provide the rationale for combining STAT5 and IDH inhibitors in the treatment of IDH-mutated AML. SIGNIFICANCE A CRISPR knockout screen identifies a mechanism of resistance to IDH inhibitors in AML involving activated STAT5 signaling, suggesting a potential strategy to improve the clinical efficacy of IDH inhibitors.
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Affiliation(s)
- Alex C H Liu
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.,Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Severine Cathelin
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Yitong Yang
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.,Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - David L Dai
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.,Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | | | - Mohsen Hosseini
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Mark D Minden
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.,Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Anne Tierens
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Steven M Chan
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.,Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
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12
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Bone Loss in Intestinal Inflammation Disease Yields to Osteoclastogenesis Inhibition. Cell Mol Gastroenterol Hepatol 2022; 14:945-946. [PMID: 35948074 PMCID: PMC9500436 DOI: 10.1016/j.jcmgh.2022.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 07/21/2022] [Indexed: 12/10/2022]
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13
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Xu J, Ma J, Zeng Y, Si H, Wu Y, Zhang S, Shen B. A Cross-Tissue Transcriptome-Wide Association Study Identifies Novel Susceptibility Genes for Juvenile Idiopathic Arthritis in Asia and Europe. Front Immunol 2022; 13:941398. [PMID: 35967305 PMCID: PMC9367689 DOI: 10.3389/fimmu.2022.941398] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 06/22/2022] [Indexed: 12/14/2022] Open
Abstract
Background Juvenile idiopathic arthritis (JIA) is the most common rheumatic disease in children, and its pathogenesis is still unclear. Genome-wide association studies (GWASs) of JIA have identified hundreds of risk factors, but few of them implicated specific biological mechanisms. Methods A cross-tissue transcriptome-wide association study (TWAS) was performed with the functional summary-based imputation software (FUSION) tool based on GWAS summary datasets (898 JIA patients and 346,102 controls from BioBank Japan (BBJ)/FinnGen). The gene expression reference weights of skeletal muscle and the whole blood were obtained from the Genotype-Tissue Expression (GTExv8) project. JIA-related genes identified by TWAS findings genes were further compared with the differentially expressed genes (DEGs) identified by the mRNA expression profile of JIA from the Gene Expression Omnibus (GEO) database (accession number: GSE1402). Last, candidate genes were analyzed using functional enrichment and annotation analysis by Metascape to examine JIA-related gene sets. Results The TWAS identified 535 significant genes with P < 0.05 and contains 350 for Asian and 195 for European (including 10 genes both expressed in Asian and European), such as CDC16 (P = 1.72E-03) and PSMD5-AS1 (P = 3.65E-02). Eight overlapping genes were identified based on TWAS results and DEGs of JIA patients, such as SIRPB1 (PTWAS = 4.21E-03, PDEG = 1.50E-04) and FRAT2 (PTWAS = 2.82E-02, PDEG = 1.43E-02). Pathway enrichment analysis of TWAS identified 183 pathways such as cytokine signaling in the immune system and cell adhesion molecules. By integrating the results of DEGs pathway and process enrichment analyses, 19 terms were identified such as positive regulation of T-cell activation. Conclusion By conducting two populations TWAS, we identified a group of JIA-associated genes and pathways, which may provide novel clues to uncover the pathogenesis of JIA.
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14
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Peek CT, Ford CA, Eichelberger KR, Jacobse J, Torres TP, Maseda D, Latour YL, Piazuelo MB, Johnson JR, Byndloss MX, Wilson KT, Rathmell JC, Goettel JA, Cassat JE. Intestinal Inflammation Promotes MDL-1 + Osteoclast Precursor Expansion to Trigger Osteoclastogenesis and Bone Loss. Cell Mol Gastroenterol Hepatol 2022; 14:731-750. [PMID: 35835390 PMCID: PMC9420375 DOI: 10.1016/j.jcmgh.2022.07.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 07/01/2022] [Accepted: 07/05/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND & AIMS Inflammatory bowel disease (IBD) is characterized by severe gastrointestinal inflammation, but many patients experience extra-intestinal disease. Bone loss is one common extra-intestinal manifestation of IBD that occurs through dysregulated interactions between osteoclasts and osteoblasts. Systemic inflammation has been postulated to contribute to bone loss, but the specific pathologic mechanisms have not yet been fully elucidated. We hypothesized that intestinal inflammation leads to bone loss through increased abundance and altered function of osteoclast progenitors. METHODS We used chemical, T cell driven, and infectious models of intestinal inflammation to determine the impact of intestinal inflammation on bone volume, the skeletal cytokine environment, and the cellular changes to pre-osteoclast populations within bone marrow. Additionally, we evaluated the potential for monoclonal antibody treatment against an inflammation-induced osteoclast co-receptor, myeloid DNAX activation protein 12-associating lectin-1 (MDL-1) to reduce bone loss during colitis. RESULTS We observed significant bone loss across all models of intestinal inflammation. Bone loss was associated with an increase in pro-osteoclastogenic cytokines within the bone and an expansion of a specific Cd11b-/loLy6Chi osteoclast precursor (OCP) population. Intestinal inflammation led to altered OCP expression of surface receptors involved in osteoclast differentiation and function, including the pro-osteoclastogenic co-receptor MDL-1. OCPs isolated from mice with intestinal inflammation demonstrated enhanced osteoclast differentiation ex vivo compared to controls, which was abrogated by anti-MDL-1 antibody treatment. Importantly, in vivo anti-MDL-1 antibody treatment ameliorated bone loss during intestinal inflammation. CONCLUSIONS Collectively, these data implicate the pathologic expansion and altered function of OCPs expressing MDL-1 in bone loss during IBD.
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Affiliation(s)
- Christopher T Peek
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Caleb A Ford
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee
| | - Kara R Eichelberger
- Department of Pediatrics, Division of Pediatric Infectious Diseases, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Justin Jacobse
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee; Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Teresa P Torres
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Damian Maseda
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee; Department of Dermatology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Yvonne L Latour
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - M Blanca Piazuelo
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee; Center for Mucosal Inflammation and Cancer, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Joshua R Johnson
- Vanderbilt Center for Bone Biology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Mariana X Byndloss
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee; Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Keith T Wilson
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee; Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee; Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee; Center for Mucosal Inflammation and Cancer, Vanderbilt University Medical Center, Nashville, Tennessee; Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee
| | - Jeffrey C Rathmell
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee; Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee; Center for Mucosal Inflammation and Cancer, Vanderbilt University Medical Center, Nashville, Tennessee; Vanderbilt Center for Immunobiology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Jeremy A Goettel
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee; Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee; Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee; Center for Mucosal Inflammation and Cancer, Vanderbilt University Medical Center, Nashville, Tennessee
| | - James E Cassat
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee; Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee; Department of Pediatrics, Division of Pediatric Infectious Diseases, Vanderbilt University Medical Center, Nashville, Tennessee; Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee; Center for Mucosal Inflammation and Cancer, Vanderbilt University Medical Center, Nashville, Tennessee; Vanderbilt Center for Immunobiology, Vanderbilt University Medical Center, Nashville, Tennessee; Vanderbilt Center for Bone Biology, Vanderbilt University Medical Center, Nashville, Tennessee.
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15
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Zhou Y, Zhang C, Zhou Z, Zhang C, Wang J. Identification of Key Genes and Pathways Associated with PIEZO1 in Bone-Related Disease Based on Bioinformatics. Int J Mol Sci 2022; 23:5250. [PMID: 35563641 PMCID: PMC9104149 DOI: 10.3390/ijms23095250] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 04/21/2022] [Accepted: 05/05/2022] [Indexed: 12/20/2022] Open
Abstract
PIEZO1 is a mechano-sensitive ion channel that can sense various forms of mechanical stimuli and convert them into biological signals, affecting bone-related diseases. The present study aimed to identify key genes and signaling pathways in Piezo1-regulated bone-related diseases and to explain the potential mechanisms using bioinformatic analysis. The differentially expressed genes (DEGs) in tendon, femur, and humerus bone tissue; cortical bone; and bone-marrow-derived macrophages were identified with the criteria of |log2FC| > 1 and adjusted p-value < 0.05 analysis based on a dataset from GSE169261, GSE139121, GSE135282, and GSE133069, respectively, and visualized in a volcano plot. Venn diagram analyses were performed to identify the overlapping DEGs expressed in the above-mentioned tissues. Gene Ontology (GO) enrichment analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis, protein−protein interaction (PPI) analysis, and module analysis were also conducted. Furthermore, qRT-PCR was performed to validate the above results using primary chondrocytes. As a result, a total of 222 overlapping DEGs and 12 mostly overlapping DEGs were identified. Key Piezo1-related genes, such as Lcn2, Dkk3, Obscn, and Tnnt1, were identified, and pathways, such as Wnt/β-catenin and PI3k-Akt, were also identified. The present informatic study provides insight, for the first time, into the potential therapeutic targets of Piezo1-regulated bone-related diseases
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Affiliation(s)
- Yuanyuan Zhou
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510006, China; (C.Z.); (C.Z.)
| | - Chen Zhang
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510006, China; (C.Z.); (C.Z.)
| | - Zhongguo Zhou
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane City 4072, Australia;
| | - Chao Zhang
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510006, China; (C.Z.); (C.Z.)
| | - Jiali Wang
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510006, China; (C.Z.); (C.Z.)
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16
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Activation of the Innate Immune Checkpoint CLEC5A on Myeloid Cells in the Absence of Danger Signals Modulates Macrophages’ Function but Does Not Trigger the Adaptive T Cell Immune Response. J Immunol Res 2022; 2022:9926305. [PMID: 35252461 PMCID: PMC8896916 DOI: 10.1155/2022/9926305] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 11/30/2021] [Accepted: 02/09/2022] [Indexed: 12/19/2022] Open
Abstract
C-Type lectin receptor 5A (CLEC5A) is a spleen tyrosine kinase- (Syk-) coupled pattern recognition receptor expressed on myeloid cells and involved in the innate immune response to viral and bacterial infections. Activation of the CLEC5A receptor with pathogen-derived antigens leads to a secretion of proinflammatory mediators such as TNF-α and IL-6 that may provoke a systemic cytokine storm, and CLEC5A gene polymorphisms are associated with the severity of DV infection. In addition, the CLEC5A receptor was mentioned in the context of noninfectious disorders like chronic obstructive pulmonary disease (COPD) or arthritis. Altogether, CLEC5A may be considered as an innate immune checkpoint capable to amplify proinflammatory signals, and this way contributes to infection or to aseptic inflammation. In this study, we determined CLEC5A receptor expression on different macrophage subsets (in vitro and ex vivo) and the functional consequences of its activation in aseptic conditions. The CLEC5A surface expression appeared the highest on proinflammatory M1 macrophages while intermediate on tumor-associated phenotypes (M2c or TAM). In contrast, the CLEC5A expression on ex vivo-derived alveolar macrophages from healthy donors or macrophages from ovarian cancer patients was hardly detectable. Targeting CLEC5A on noninflammatory macrophages with an agonistic α-CLEC5A antibody triggered a release of proinflammatory cytokines, resembling a response to dengue virus, and led to phenotypic changes in myeloid cells that may suggest their reprogramming towards a proinflammatory phenotype, e.g., upregulation of CD80 and downregulation of CD163. Interestingly, the CLEC5A agonist upregulated immune-regulatory molecules like CD206, PD-L1, and cytokines like IL-10, macrophage-derived chemokine (MDC/CCL22), and thymus and activation chemokine (TARC/CCL17) which are associated with an anti-inflammatory or a protumorigenic macrophage phenotype. In the absence of concomitant pathogenic or endogenous danger signals, the CLEC5A receptor activation did not amplify an autologous T cell response, which may represent a protective innate mechanism to avoid an undesirable autoimmune adaptive response.
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17
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Cao X, Cordova AF, Li L. Therapeutic Interventions Targeting Innate Immune Receptors: A Balancing Act. Chem Rev 2021; 122:3414-3458. [PMID: 34870969 DOI: 10.1021/acs.chemrev.1c00716] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The innate immune system is an organism's first line of defense against an onslaught of internal and external threats. The downstream adaptive immune system has been a popular target for therapeutic intervention, while there is a relative paucity of therapeutics targeting the innate immune system. However, the innate immune system plays a critical role in many human diseases, such as microbial infection, cancer, and autoimmunity, highlighting the need for ongoing therapeutic research. In this review, we discuss the major innate immune pathways and detail the molecular strategies underpinning successful therapeutics targeting each pathway as well as previous and ongoing efforts. We will also discuss any recent discoveries that could inform the development of novel therapeutic strategies. As our understanding of the innate immune system continues to develop, we envision that therapies harnessing the power of the innate immune system will become the mainstay of treatment for a wide variety of human diseases.
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18
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Sung PS, Hsieh SL. C-type lectins and extracellular vesicles in virus-induced NETosis. J Biomed Sci 2021; 28:46. [PMID: 34116654 PMCID: PMC8193014 DOI: 10.1186/s12929-021-00741-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 06/08/2021] [Indexed: 12/12/2022] Open
Abstract
Dysregulated formation of neutrophil extracellular traps (NETs) is observed in acute viral infections. Moreover, NETs contribute to the pathogenesis of acute viral infections, including those caused by the dengue virus (DV) and severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). Furthermore, excessive NET formation (NETosis) is associated with disease severity in patients suffering from SARS-CoV-2-induced multiple organ injuries. Dendritic cell-specific intercellular adhesion molecule-3-grabbing non-integrin (DC-SIGN) and other members of C-type lectin family (L-SIGN, LSECtin, CLEC10A) have been reported to interact with viral glycans to facilitate virus spreading and exacerbates inflammatory reactions. Moreover, spleen tyrosine kinase (Syk)-coupled C-type lectin member 5A (CLEC5A) has been shown as the pattern recognition receptor for members of flaviviruses, and is responsible for DV-induced cytokine storm and Japanese encephalomyelitis virus (JEV)-induced neuronal inflammation. Moreover, DV activates platelets via CLEC2 to release extracellular vesicles (EVs), including microvesicles (MVs) and exosomes (EXOs). The DV-activated EXOs (DV-EXOs) and MVs (DV-MVs) stimulate CLEC5A and Toll-like receptor 2 (TLR2), respectively, to enhance NET formation and inflammatory reactions. Thus, EVs from virus-activated platelets (PLT-EVs) are potent endogenous danger signals, and blockade of C-type lectins is a promising strategy to attenuate virus-induced NETosis and intravascular coagulopathy.
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Affiliation(s)
- Pei-Shan Sung
- Genomics Research Center, Academia Sinica, 128, Academia Road, Sec. 2, Nankang District, Taipei, 115 Taiwan
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, 128, Academia Road, Sec. 2, Nankang District, Taipei, 115 Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
- Institute for Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan
- Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan
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Nrf2-ARE Signaling Partially Attenuates Lipopolysaccharide-Induced Mammary Lesions via Regulation of Oxidative and Organelle Stresses but Not Inflammatory Response in Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:8821833. [PMID: 33505589 PMCID: PMC7810562 DOI: 10.1155/2021/8821833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 12/18/2020] [Accepted: 12/26/2020] [Indexed: 11/30/2022]
Abstract
The incidence of mastitis is high during the postpartum stage, which causes severe pain and hinders breast feeding in humans and reduces milk production in dairy cows. Studies suggested that inflammation in multiple organs is associated with oxidative stress and nuclear factor E2-related factor 2 (Nrf2)-antioxidant response element pathway is one of the most important antioxidant pathways, but the effects of Nrf2 on antioxidation in the mammary gland during mastitis are still unclear. In this study, intramammary lipopolysaccharide (LPS) challenge was carried out in wild-type (WT) and Nrf2 knockout mice. Results showed that the expression of Nrf2 affected the expression of milk protein genes (Csn2 and Csn3). Importantly, LPS treatment increased the expression of Nrf2 and HO-1 and the content of glutathione in the mammary gland of WT mice, but not in Nrf2(-/-) mice. The expression levels of glutathione synthesis genes (GCLC, GCLM, and xCT) were lower in Nrf2(-/-) mice than in WT mice. Moreover, mitochondrial-dependent apoptotic and endoplasmic reticulum stress were significantly relieved in WT mice compared with that in Nrf2(-/-) mice. In summary, the expression of Nrf2 may play an important role in prevention of oxidative and organelle stresses during endotoxin-induced mastitis in mouse mammary gland.
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20
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Menegatti S, Guillemot V, Latis E, Yahia-Cherbal H, Mittermüller D, Rouilly V, Mascia E, Rosine N, Koturan S, Millot GA, Leloup C, Duffy D, Gleizes A, Hacein-Bey-Abina S, Sellam J, Berenbaum F, Miceli-Richard C, Dougados M, Bianchi E, Rogge L. Immune response profiling of patients with spondyloarthritis reveals signalling networks mediating TNF-blocker function in vivo. Ann Rheum Dis 2020; 80:475-486. [PMID: 33268443 PMCID: PMC7958106 DOI: 10.1136/annrheumdis-2020-218304] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 10/30/2020] [Accepted: 10/30/2020] [Indexed: 12/24/2022]
Abstract
Objectives Antitumour necrosis factor (TNF) therapy has revolutionised treatment of several chronic inflammatory diseases, including spondyloarthritis (SpA). However, TNF inhibitors (TNFi) are not effective in all patients and the biological basis for treatment failure remains unknown. We have analysed induced immune responses to define the mechanism of action of TNF blockers in SpA and to identify immunological correlates of responsiveness to TNFi. Methods Immune responses to microbial and pathway-specific stimuli were analysed in peripheral blood samples from 80 patients with axial SpA before and after TNFi treatment, using highly standardised whole-blood stimulation assays. Cytokines and chemokines were measured in a Clinical Laboratory Improvement Amendments (CLIA)-certified laboratory, and gene expression was monitored using nCounter assays. Results Anti-TNF therapy induced profound changes in patients’ innate immune responses. TNFi action was selective, and had only minor effects on Th1/Th17 immunity. Modular transcriptional repertoire analysis identified prostaglandin E2 synthesis and signalling, leucocyte recirculation, macrophage polarisation, dectin and interleukin (IL)-1 signalling, as well as the nuclear factor kappa B (NF-kB) transcription factor family as key pathways targeted by TNF blockers in vivo. Analysis of induced immune responses before treatment initiation revealed that expression of molecules associated with leucocyte adhesion and invasion, chemotaxis and IL-1 signalling are correlated with therapeutic responses to anti-TNF. Conclusions We show that TNFi target multiple immune cell pathways that cooperate to resolve inflammation. We propose that immune response profiling provides new insight into the biology of TNF-blocker action in patients and can identify signalling pathways associated with therapeutic responses to biological therapies.
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Affiliation(s)
- Silvia Menegatti
- Immunoregulation Unit, Department of Immunology, Institut Pasteur, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,INSERM U932, Institut Curie, PSL Research University, Paris, France
| | - Vincent Guillemot
- Bioinformatics and Biostatistics Hub-Département de Biologie Computationelle, Institut Pasteur, USR 3756 IP CNRS, Paris, France
| | - Eleonora Latis
- Immunoregulation Unit, Department of Immunology, Institut Pasteur, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Hanane Yahia-Cherbal
- Immunoregulation Unit, Department of Immunology, Institut Pasteur, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Daniela Mittermüller
- Immunoregulation Unit, Department of Immunology, Institut Pasteur, Paris, France
| | | | - Elena Mascia
- Immunoregulation Unit, Department of Immunology, Institut Pasteur, Paris, France
| | - Nicolas Rosine
- Immunoregulation Unit, Department of Immunology, Institut Pasteur, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Surya Koturan
- Immunoregulation Unit, Department of Immunology, Institut Pasteur, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Gael A Millot
- Bioinformatics and Biostatistics Hub-Département de Biologie Computationelle, Institut Pasteur, USR 3756 IP CNRS, Paris, France
| | - Claire Leloup
- Immunoregulation Unit, Department of Immunology, Institut Pasteur, Paris, France
| | - Darragh Duffy
- Institut Pasteur, Translational Immunology Laboratory, Department of Immunology, Paris, France
| | - Aude Gleizes
- Clinical Immunology Laboratory, Groupe Hospitalier Universitaire Paris-Sud, Hôpital Kremlin-Bicêtre, AP-HP, Le-Kremlin-Bicêtre, France.,UTCBS CNRS UMR 8258, INSERM U1267, Faculté de Pharmacie de Paris, Université de Paris, Paris, France
| | - Salima Hacein-Bey-Abina
- Clinical Immunology Laboratory, Groupe Hospitalier Universitaire Paris-Sud, Hôpital Kremlin-Bicêtre, AP-HP, Le-Kremlin-Bicêtre, France.,UTCBS CNRS UMR 8258, INSERM U1267, Faculté de Pharmacie de Paris, Université de Paris, Paris, France
| | | | - Jérémie Sellam
- Sorbonne Université, Service de Rhumatologie, Hôpital Saint-Antoine, AP-HP, Paris, France.,Centre de Recherche Saint-Antoine, INSERM UMR_S 938, Paris, France
| | - Francis Berenbaum
- Sorbonne Université, Service de Rhumatologie, Hôpital Saint-Antoine, AP-HP, Paris, France.,Centre de Recherche Saint-Antoine, INSERM UMR_S 938, Paris, France
| | - Corinne Miceli-Richard
- Immunoregulation Unit, Department of Immunology, Institut Pasteur, Paris, France.,Paris Descartes University, Rheumatology Department, Cochin Hospital, AP-HP, Paris, France.,Unité Mixte AP-HP/Institut Pasteur, Institut Pasteur, Paris, France
| | - Maxime Dougados
- Paris Descartes University, Rheumatology Department, Cochin Hospital, AP-HP, Paris, France.,Unité Mixte AP-HP/Institut Pasteur, Institut Pasteur, Paris, France.,INSERM U1153 Clinical Epidemiology and Biostatistics, PRES Sorbonne Paris-Cité, Paris, France
| | - Elisabetta Bianchi
- Immunoregulation Unit, Department of Immunology, Institut Pasteur, Paris, France.,Unité Mixte AP-HP/Institut Pasteur, Institut Pasteur, Paris, France
| | - Lars Rogge
- Immunoregulation Unit, Department of Immunology, Institut Pasteur, Paris, France .,Unité Mixte AP-HP/Institut Pasteur, Institut Pasteur, Paris, France
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21
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Al-Bari AA, Al Mamun A. Current advances in regulation of bone homeostasis. FASEB Bioadv 2020; 2:668-679. [PMID: 33205007 PMCID: PMC7655096 DOI: 10.1096/fba.2020-00058] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 08/18/2020] [Accepted: 08/21/2020] [Indexed: 02/06/2023] Open
Abstract
Bone homeostasis is securely controlled by the dynamic well‐balanced actions among osteoclasts, osteoblasts and osteocytes. Osteoclasts are large multinucleated cells that degrade bone matrix and involve in the bone remodelling in conjunction with other bone cells, osteoblasts and osteocytes, the completely matured form of osteoblasts. Disruption of this controlling balance among these cells or any disparity in bone remodelling caused by a higher rate of resorption by osteoclasts over construction of bone by osteoblasts results in a reduction of bone matrix including bone mineral density (BMD) and bone marrow cells (BMCs). The dominating effect of osteoclasts results in advanced risk of bone crack and joint destruction in several diseases including osteoporosis and rheumatoid arthritis (RA). However, the boosted osteoblastic activity produces osteosclerotic phenotype and weakened its action primes to osteomalacia or rickets. On the other hand, senescent osteocytes predominately progress the senescence associated secretory phenotype (SASP) and may contribute to age related bone loss. Here, we discuss an advanced level work on newly identified cellular mechanisms controlling the remodelling of bone and crosstalk among bone cells as these relate to the therapeutic targeting of the skeleton.
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Affiliation(s)
| | - Abdullah Al Mamun
- Department of Genetic Engineering and Biotechnology Shahjalal University of Science and Technology Sylhet Bangladesh
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22
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Girón-Ulloa A, González-Domínguez E, Klimek RS, Patiño-Martínez E, Vargas-Ayala G, Segovia-Gamboa NC, Campos-Peña V, Rodríguez-Arellano ME, Meraz-Ríos MA, Campos-Campos SF, Sánchez-Torres C. Specific macrophage subsets accumulate in human subcutaneous and omental fat depots during obesity. Immunol Cell Biol 2020; 98:868-882. [PMID: 32696992 DOI: 10.1111/imcb.12380] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 07/18/2020] [Accepted: 07/19/2020] [Indexed: 12/17/2022]
Abstract
Obesity is a chronic inflammatory disease associated with adipose tissue macrophage (ATM) activation. ATMs from lean mice contribute to tissue homeostasis by their M2-oriented polarization, whereas obesity leads to an increase of M1 inflammatory ATMs that underlies obesity-related metabolic disorders. In humans, studies characterizing ATMs and their functional status are limited. Here we investigated ATM phenotype in visceral (VAT) and subcutaneous (SAT) adipose tissue from healthy lean and obese individuals using two molecules previously identified as markers of M1-like and M2-like/tissue-resident macrophages, the C-type lectin CLEC5A and the scavenger receptor CD163L1, respectively. CD163L1 was expressed by the majority of ATMs, and CD163L1+ ATM density was greater with respect to cells expressing the pan-macrophage markers CD68 or CD11b. ATM counts in SAT, but not in VAT, increased in obese compared to lean individuals, measured with the three markers. Accordingly, CD163L1, CD68 and ITGAM gene expression was significantly enhanced in obese with respect to control individuals only in SAT. CLEC5A+ ATMs had a proinflammatory profile and were abundant in the lean VAT, but their density diminished in obesity. The only ATM subset that increased its counts in the obese VAT had a mixed M1-like (CD11c+ CD163- CD209- ) and M2-like (CLEC5A- CD206+ ) phenotype. ATM expansion was dominated by a subset of M2-like macrophages (CD11c- CLEC5A- CD163+ CD206+ CD209+ ) in the obese SAT, with a minor contribution of a CD11c+ CLEC5A- ATM subpopulation. Thus, both SAT and VAT seems to limit inflammation during obesity by differentially altering their ATM subset composition.
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Affiliation(s)
- Angélica Girón-Ulloa
- Department of Molecular Biomedicine, Centro de Investigación y de Estudios Avanzados del I.P.N., Mexico City, Mexico
| | - Erika González-Domínguez
- Department of Molecular Biomedicine, Centro de Investigación y de Estudios Avanzados del I.P.N., Mexico City, Mexico
| | - Rebeca S Klimek
- Department of Molecular Biomedicine, Centro de Investigación y de Estudios Avanzados del I.P.N., Mexico City, Mexico
| | - Eduardo Patiño-Martínez
- Department of Molecular Biomedicine, Centro de Investigación y de Estudios Avanzados del I.P.N., Mexico City, Mexico
| | - Germán Vargas-Ayala
- Department of Internal Medicine, Hospital General Ticomán, Mexico City, Mexico
| | - Norma C Segovia-Gamboa
- Department of Molecular Biomedicine, Centro de Investigación y de Estudios Avanzados del I.P.N., Mexico City, Mexico
| | - Victoria Campos-Peña
- Experimental Laboratory for Neurodegenerative Diseases, Instituto Nacional de Neurología y Neurocirugía "Manuel Velazco Suárez", Mexico City, Mexico
| | | | - Marco A Meraz-Ríos
- Department of Molecular Biomedicine, Centro de Investigación y de Estudios Avanzados del I.P.N., Mexico City, Mexico
| | | | - Carmen Sánchez-Torres
- Department of Molecular Biomedicine, Centro de Investigación y de Estudios Avanzados del I.P.N., Mexico City, Mexico
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23
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Al-Bari MAA, Hossain S, Mia U, Al Mamun MA. Therapeutic and Mechanistic Approaches of Tridax Procumbens Flavonoids for the Treatment of Osteoporosis. Curr Drug Targets 2020; 21:1687-1702. [PMID: 32682372 DOI: 10.2174/1389450121666200719012116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 06/16/2020] [Accepted: 06/17/2020] [Indexed: 11/22/2022]
Abstract
Homeostasis of bone is closely regulated by the balanced activities between the bone resorbing activity of osteoclast cells and bone-forming ability of osteoblast cells. Multinucleated osteoclasts degrade bone matrix and involve in the dynamic bone remodelling in coordination with osteoblasts. Disruption of this regulatory balance between these cells or any imbalance in bone remodelling caused by a higher rate of resorption over construction of bone results in a decrease of bone matrix including bone mineral density (BMD). These osteoclast-dominant effects result in a higher risk of bone crack and joint demolition in several bone-related diseases, including osteoporosis and rheumatoid arthritis (RA). Tridax procumbens is a very interesting perennial plant and its secondary metabolites called here T. procumbens flavonoids (TPFs) are well-known phytochemical agents owing to various therapeutic practices such as anti-inflammatory, anti-anaemic and anti-diabetic actions. This review designed to focus the systematic convention concerning the medicinal property and mechanism of actions of TPFs for the management of bone-related diseases. Based on the current literature, the review offers evidence-based information of TPFs for basic researchers and clinicians for the prevention and treatment of bone related diseases, including osteoporosis. It also emphasizes the medical significance for more research to comprehend the cellular signalling pathways of TPFs for the regulation of bone remodelling and discusses the possible promising ethnobotanical resource that can convey the preclinical and clinical clues to develop the next generation therapeutic agents for the treatment of bonerelated disorders.
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Affiliation(s)
| | - Showna Hossain
- Department of Pharmacy, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Ujjal Mia
- Department of Pharmacy, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Md Abdullah Al Mamun
- Department of Genetic Engineering and Biotechnology, Shahjalal University of Science and Technology, Sylhet-3114, Bangladesh
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24
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Wang R, Du X, Zhi Y. Screening of Critical Genes Involved in Metastasis and Prognosis of High-Grade Serous Ovarian Cancer by Gene Expression Profile Data. J Comput Biol 2020; 27:1104-1114. [PMID: 31725318 DOI: 10.1089/cmb.2019.0235] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Ruike Wang
- Department of Traditional Chinese Medicine, Jining No. 1 People's Hospital, Jining City, China
- Affiliated Jining No. 1 People's Hospital of Jining Medical University, Jining City, China
| | - Xia Du
- Department of Dermatology, Jining No. 1 People's Hospital, Jining City, China
| | - Yaqin Zhi
- Affiliated Jining No. 1 People's Hospital of Jining Medical University, Jining City, China
- Department of Oncology, Jining No. 1 People's Hospital, Jining City, China
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25
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Győri DS, Mócsai A. Osteoclast Signal Transduction During Bone Metastasis Formation. Front Cell Dev Biol 2020; 8:507. [PMID: 32637413 PMCID: PMC7317091 DOI: 10.3389/fcell.2020.00507] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 05/27/2020] [Indexed: 12/18/2022] Open
Abstract
Osteoclasts are myeloid lineage-derived bone-resorbing cells of hematopoietic origin. They differentiate from myeloid precursors through a complex regulation process where the differentiation of preosteoclasts is followed by intercellular fusion to generate large multinucleated cells. Under physiological conditions, osteoclastogenesis is primarily directed by interactions between CSF-1R and macrophage colony-stimulating factor (M-CSF, CSF-1), receptor activator of nuclear factor NF-κB (RANK) and RANK ligand (RANKL), as well as adhesion receptors (e.g., integrins) and their ligands. Osteoclasts play a central role in physiological and pathological bone resorption and are also required for excessive bone loss during osteoporosis, inflammatory bone and joint diseases (such as rheumatoid arthritis) and cancer cell-induced osteolysis. Due to the major role of osteoclasts in these diseases the better understanding of their intracellular signaling pathways can lead to the identification of potential novel therapeutic targets. Non-receptor tyrosine kinases and lipid kinases play major roles in osteoclasts and small-molecule kinase inhibitors are emerging new therapeutics in diseases with pathological bone loss. During the last few years, we and others have shown that certain lipid (such as phosphoinositide 3-kinases PI3Kβ and PI3Kδ) and tyrosine (Src-family and Syk) kinases play a critical role in osteoclast differentiation and function in humans and mice. Some of these signaling pathways shows similarity to immunoreceptor-like receptor signaling and involves important other enzymes (e.g., PLCγ2) and adapter proteins (such as the ITAM-bearing adapters DAP12 and the Fc-receptor γ-chain). Here, we review recently identified osteoclast signaling pathways and their role in osteoclast differentiation and function as well as pathological bone loss associated with osteolytic tumors of the bone. A better understanding of osteoclast signaling may facilitate the design of novel and more efficient therapies for pathological bone resorption and osteolytic skeletal metastasis formation.
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Affiliation(s)
- Dávid S. Győri
- Department of Physiology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
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26
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Hile G, Kahlenberg JM, Gudjonsson JE. Recent genetic advances in innate immunity of psoriatic arthritis. Clin Immunol 2020; 214:108405. [PMID: 32247832 DOI: 10.1016/j.clim.2020.108405] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 03/28/2020] [Accepted: 03/28/2020] [Indexed: 12/19/2022]
Abstract
Psoriatic arthritis (PsA) is a heterogeneous disease that affects multiple organ systems including the peripheral and axial joints, entheses and nails. PsA is associated with significant comorbidities including cardiovascular, metabolic, and psychiatric diseases. The pathogenesis of PsA is complex and involves genetic, immunologic and environmental factors. Recent evidence suggests the heritability for PsA to be stronger and distinct from that of PsC. Prominent genes identified via GWAS for PsA include HLA-B/C, HLAB, IL12B, IL23R, TNP1, TRAF3IP3, and REL. We review the genetics of psoriatic arthritis and discuss the role of the innate immune system as important in the pathogenesis of PsA by focusing on key signaling pathways and cellular makeup. Understanding the candidate genes identified in PsA highlights pathways of critical importance to the pathogenesis of psoriatic disease including the key role of the innate immune response, mediated through IL-23/IL-17 axis, RANK and NFκB signaling pathways.
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Affiliation(s)
- Grace Hile
- Department of Dermatology, University of Michigan, Ann Arbor 48109, MI, USA.
| | - J Michelle Kahlenberg
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Johann E Gudjonsson
- Department of Dermatology, University of Michigan, Ann Arbor 48109, MI, USA.
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27
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Elevated Expression of C-Type Lectin Domain Family 5-Member A (CLEC5A) and Its Relation to Inflammatory Parameters and Disease Course in Adult-Onset Still's Disease. J Immunol Res 2020; 2020:9473497. [PMID: 32377540 PMCID: PMC7195645 DOI: 10.1155/2020/9473497] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 04/07/2020] [Indexed: 12/15/2022] Open
Abstract
C-type lectin domain family 5-member A (CLEC5A) associates with adaptor DAP12 (DNAX activation protein 12) to form receptor complexes involved in inflammatory responses. We postulated a potential role of CLEC5A in the pathogenesis of adult-onset Still's disease (AOSD) and aimed to investigate CLEC5A expression and its association with activity parameters and disease course. In 34 AOSD patients and 12 healthy controls (HC), circulating levels of CLEC5A-expressing monocytes or granulocytes were determined by flow cytometry analysis, the mRNA expression of CLEC5A and DAP12 on PBMCs by quantitative PCR, and plasma levels of proinflammatory cytokines by ELISA. AOSD patients had significantly higher percentages and mean fluorescence intensity (MFI) of CLEC5A-expressing monocytes (median 62.1% and 3.20, respectively) or granulocytes (72.6% and 3.22, respectively) compared with HC (in monocytes: 17.0% and 0.65, both p < 0.001; in granulocytes: 67.3%, p < 0.05 and 0.90, p < 0.001; respectively). Patients also had significantly higher levels of CLEC5A mRNA expression on PBMCs compared with HC (median 1.77 vs. 0.68, p < 0.05). The levels of CLEC5A-expressing monocytes or granulocytes were positively associated with activity scores and levels of IL-1β and IL-18 in AOSD patients. The patients with a systemic pattern had significantly higher levels of CLEC5A-expressing granulocytes and IL-18 compared to those with a chronic articular pattern of disease course. After 6 months of therapy, levels of CLEC5A-expressing monocytes and granulocytes significantly declined, paralleling the decrease of AOSD activity. Elevated CLEC5A levels and their positive association with activity parameters suggest that CLEC5A is involved in the pathogenesis and may serve as an activity indicator of AOSD.
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28
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Sung PS, Chang WC, Hsieh SL. CLEC5A: A Promiscuous Pattern Recognition Receptor to Microbes and Beyond. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1204:57-73. [PMID: 32152943 PMCID: PMC7121389 DOI: 10.1007/978-981-15-1580-4_3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
CLEC5A is a spleen tyrosine kinase (Syk)-coupled C-type lectin that is highly expressed by monocytes, macrophages, neutrophils, and dendritic cells and interacts with virions directly, via terminal fucose and mannose moieties of viral glycans. CLEC5A also binds to N-acetylglucosamine (GlcNAc) and N-acetylmuramic acid (MurNAc) disaccharides of bacterial cell walls. Compared to other C-type lectins (DC-SIGN and DC-SIGNR) and TLRs, CLEC5A binds its ligands with relatively low affinities. However, CLEC5A forms a multivalent hetero-complex with DC-SIGN and other C-type lectins upon engagement with ligands, and thereby mediates microbe-induced inflammatory responses via activation of Syk. For example, in vivo studies in mouse models have demonstrated that CLEC5A is responsible for flaviviruses-induced hemorrhagic shock and neuroinflammation, and a CLEC5A polymorphism in humans is associated with disease severity following infection with dengue virus. In addition, CLEC5A is co-activated with TLR2 by Listeria and Staphylococcus. Furthermore, CLEC5A-postive myeloid cells are responsible for Concanavilin A-induced aseptic inflammatory reactions. Thus, CLEC5A is a promiscuous pattern recognition receptor in myeloid cells and is a potential therapeutic target for attenuation of both septic and aseptic inflammatory reactions.
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Affiliation(s)
- Pei-Shan Sung
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Wei-Chiao Chang
- School of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Taipei, Taiwan. .,School of Medicine, Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.
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29
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Saferding V, Blüml S. Innate immunity as the trigger of systemic autoimmune diseases. J Autoimmun 2019; 110:102382. [PMID: 31883831 DOI: 10.1016/j.jaut.2019.102382] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 12/09/2019] [Indexed: 12/12/2022]
Abstract
The innate immune system consists of a variety of elements controlling and participating in virtually all aspects of inflammation and immunity. It is crucial for host defense, but on the other hand its improper activation is also thought to be responsible for the generation of autoimmunity and therefore diseases such as autoimmune arthritides like rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), multiple sclerosis (MS) or inflammatory bowel disease. The innate immune system stands both at the beginning as well as the end of autoimmunity. On one hand, it regulates the activation of the adaptive immune system and the breach of self-tolerance, as antigen presenting cells (APCs), especially dendritic cells, are essential for the activation of naïve antigen specific T cells, a crucial step in the development of autoimmunity. Various factors controlling the function of dendritic cells have been identified that directly regulate lymphocyte homeostasis and in some instances the generation of organ specific autoimmunity. Moreover, microbial cues have been identified that are prerequisites for the generation of several specific autoimmune diseases. On the other hand, the innate immune system is also responsible for mediating the resulting organ damage underlying the clinical symptoms of a given autoimmune disease via production of proinflammatory cytokines that amplify local inflammation and further activate other immune or parenchymal cells in the vicinity, the generation of matrix degrading and proteolytic enzymes or reactive oxygen species directly causing tissue damage. In the last decades, molecular characterization of cell types and their subsets as well as both positive and negative regulators of immunity has led to the generation of various scenarios of how autoimmunity develops, which eventually might lead to the development of targeted interventions for autoimmune diseases. In this review, we try to summarize the elements that are contributing to the initiation and perpetuation of autoimmune responses.
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Affiliation(s)
| | - Stephan Blüml
- Department of Rheumatology, Medical University Vienna, Austria.
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30
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Sung PS, Hsieh SL. CLEC2 and CLEC5A: Pathogenic Host Factors in Acute Viral Infections. Front Immunol 2019; 10:2867. [PMID: 31867016 PMCID: PMC6909378 DOI: 10.3389/fimmu.2019.02867] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 11/22/2019] [Indexed: 12/11/2022] Open
Abstract
The protective roles of endosomal toll-like receptors (TLRs) and cytosolic nucleic acid sensors are well elucidated, but the pathogenic host factors during viral infections remain unclear. Spleen tyrosine kinase (Syk)-coupled C-type lectins (CLECs) CLEC2 and CLEC5A are highly expressed on platelets and myeloid cells, respectively. CLEC2 has been shown to recognize snake venom aggretin and the endogenous ligand podoplanin and acts as a critical regulator in the development and immunothrombosis. Although CLEC2 has been reported to interact with type I immunodeficiency virus (HIV-1), its role in viral infections is still unclear. CLEC5A binds to fucose and mannose moieties of dengue virus membrane glycans, as well as to N-acetylglucosamine (GlcNAc)/N-acetylmuramic acid (MurNAc) disaccharides that form the backbone of L. monocytogenes peptidoglycans. Recently, we demonstrated that both CLEC2 and CLEC5A are critical in microbe-induced “neutrophil extracellular trap” (NET) formation and proinflammatory cytokine production. Moreover, activation of CLEC2 by dengue virus (DV) and H5N1 influenza virus (IAV) induces the release of extracellular vesicles (EVs), which further enhance NETosis and proinflammatory cytokine production via CLEC5A and Toll-like receptor 2 (TLR2). These findings not only illustrate the immunomodulatory effects of EVs during platelet-leukocyte interactions, but also demonstrate the critical roles of CLEC2 and CLEC5A in acute viral infections.
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Affiliation(s)
- Pei-Shan Sung
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute for Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan
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31
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Abstract
The C-type lectins are a superfamily of proteins that recognize a broad repertoire of ligands and that regulate a diverse range of physiological functions. Most research attention has focused on the ability of C-type lectins to function in innate and adaptive antimicrobial immune responses, but these proteins are increasingly being recognized to have a major role in autoimmune diseases and to contribute to many other aspects of multicellular existence. Defects in these molecules lead to developmental and physiological abnormalities, as well as altered susceptibility to infectious and non-infectious diseases. In this Review, we present an overview of the roles of C-type lectins in immunity and homeostasis, with an emphasis on the most exciting recent discoveries.
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32
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Fan HW, Ni Q, Fan YN, Ma ZX, Li YB. C-type lectin domain family 5, member A (CLEC5A, MDL-1) promotes brain glioblastoma tumorigenesis by regulating PI3K/Akt signalling. Cell Prolif 2019; 52:e12584. [PMID: 30834619 PMCID: PMC6536598 DOI: 10.1111/cpr.12584] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 01/04/2019] [Accepted: 01/19/2019] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES Glioblastoma is the most common malignant glioma of all brain tumours. It is difficult to treat because of its poor response to chemotherapy and radiotherapy and high recurrence rate after treatment. The aetiology of glioblastoma is a result of disorders of multiple factors. Depending on cell signal transduction, these glioblastoma-associated factors lead to cell proliferation, differentiation and apoptosis. Therefore, investigation of the potential factors which involved in the development of glioblastoma could provide a new target for the treatment of glioblastoma. MATERIALS AND METHODS We analysed the transcript expression of CLEC5A in glioblastoma by accessing The Cancer Genome Atlas (TCGA). qRT-PCR was performed to detect the RNA expression of genes in cells and tissues, and Western blot was used to measure the protein levels (Cyclin D1, Bcl-2, BAX, PCNA, MMP2, MMP9, Akt and Akt phosphorylation) in tissues and cells. Cell proliferation, migration, invasion, cycle and apoptosis were measured by CCK-8, transwell and flow cytometry assays, respectively. Ki67 level and lung metastasis were determined by immunochemistry and H&E staining. RESULTS In this study, we found that CLEC5A was highly upregulated in glioblastoma compared to normal brain tissues, which had an opposite relation with the overall patient survival. Downregulation of CLEC5A could inhibit cell proliferation, migration and invasion via promoting apoptosis and G1 arrest. In contrast, overexpression of CLEC5A stimulated cell proliferation, migration and invasion. In addition, we found that CLEC5A level was positively correlated with Akt phosphorylation level. Akt inhibitor or agonist could reverse the modulation effects of CLEC5A in glioblastoma. Moreover, In vivo results suggested that inhibition of CLEC5A significantly reduced tumour size, weight, cell proliferation ability and lung metastasis via inhibition of phosphorylation Akt. CONCLUSION Both in vitro and in vivo evidences supported that CLEC5A was involved in glioblastoma pathogenesis via regulation of PI3K/Akt pathway. Thus, CLEC5A might serve as a potential therapeutic target in the treatment of glioblastoma in the future.
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Affiliation(s)
- Hong-Wei Fan
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Qi Ni
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Ya-Ni Fan
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zhi-Xiang Ma
- Department of Clinical Pharmacology Lab, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Ying-Bin Li
- Department of Neurosurgery, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
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Abstract
Bone is a crucial element of the skeletal-locomotor system, but also functions as an immunological organ that harbors hematopoietic stem cells (HSCs) and immune progenitor cells. Additionally, the skeletal and immune systems share a number of regulatory molecules, including cytokines and signaling molecules. Osteoimmunology was created as an interdisciplinary field to explore the shared molecules and interactions between the skeletal and immune systems. In particular, the importance of an inseparable link between the two systems has been highlighted by studies on the pathogenesis of rheumatoid arthritis (RA), in which pathogenic helper T cells induce the progressive destruction of multiple joints through aberrant expression of receptor activator of nuclear factor (NF)-κB ligand (RANKL). The conceptual bridge of osteoimmunology provides not only a novel framework for understanding these biological systems but also a molecular basis for the development of therapeutic approaches for diseases of bone and/or the immune system.
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Affiliation(s)
- Kazuo Okamoto
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroshi Takayanagi
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
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The expression profile of genes involved in osteoclastogenesis detected in whole blood of Arabian horses during 3 years of competing at race track. Res Vet Sci 2018; 123:59-64. [PMID: 30586653 DOI: 10.1016/j.rvsc.2018.12.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 11/09/2018] [Accepted: 12/17/2018] [Indexed: 11/24/2022]
Abstract
One of the most significant reason of economic loss on race track performance is lame in performed horses. Primarily, due to the failure within proper bone maintenance during conditioning in young horses. The training overload causes bone turnover disturbances in homeostasis between bone resorption and bone formation which promote the bone loss. Within our study we investigated training induced changes in transcript abundance of genes (NFATc1, CTSK, DAP12, CLEC5A, IL6ST, VAV3) involved in osteoclastogenesis hence bone resorption, in whole blood of Arabian horses. The expression pattern of all analysed genes varied depend of exercise intense activity. All training stages generate similar response to training whatever season was. The initial training had greater effect on expression pattern than increased, prolonged, established conditioning. Notwithstanding, the significant increase of transcript abundance of all investigated genes was observed during period of starts with racing competition. There is no biomarker known with highly significant accuracy according to degree of articular cartilage or bone disease in a single joint. Thus, the markers presented in our report, poses the potential to be further investigate as useful tool for bone turnover.
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Cui YC, Wu Q, Teh SW, Peli A, Bu G, Qiu YS, Benelli G, Kumar SS. Bone breaking infections – A focus on bacterial and mosquito-borne viral infections. Microb Pathog 2018; 122:130-136. [DOI: 10.1016/j.micpath.2018.06.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 06/04/2018] [Accepted: 06/11/2018] [Indexed: 12/15/2022]
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Xiong W, Wang H, Lu L, Xi R, Wang F, Gu G, Tao R. The macrophage C-type lectin receptor CLEC5A (MDL-1) expression is associated with early plaque progression and promotes macrophage survival. J Transl Med 2017; 15:234. [PMID: 29126450 PMCID: PMC5681784 DOI: 10.1186/s12967-017-1336-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 10/30/2017] [Indexed: 12/11/2022] Open
Abstract
Background Biomarkers of early plaque progression are still elusive. Myeloid DAP12-associating lectin-1 (MDL-1), also called CLEC5A, is a C-type lectin receptor implicated in the progression of multiple acute and chronic inflammatory diseases. However, the relationship between its level and atherosclerosis is unknown. In this study, we aimed to investigate the correlation between macrophage MDL-1 expression and early atherosclerosis progression. Methods Immunofluorescence staining, real-time PCR and western blot were performed to analyze MDL-1 expression in aorta or mice macrophages. The role of MDL-1 in macrophage survival was further investigated by adenovirus infection and TUNEL assay. Results Significant MDL-1 expression was found in advanced human and apoE−/− mice atherosclerotic plaques, especially in lesional macrophages. In the model of atherosclerosis regression, we found MDL-1 expression was highly downregulated in lesional macrophages from ldlr−/− mouse regressive plaques, coincident with a reduction in lesional macrophage content and marker of M1 proinflammatory macrophages. Furthermore, we found MDL-1 was significantly expressed in inflammatory M1 subtype polarized bone marrow-derived macrophages. In vitro experiments, the level of MDL-1 was remarkably elevated in macrophages treated with pathophysiological drivers of plaque progression, such as oxidized low-density lipoprotein (ox-LDL) and hypoxia. Mechanistically, we demonstrated that MDL-1 overexpression notably promoted macrophage survival and decreased cleaved caspase-3 expression under ox-LDL stimulation, which suggested that it could maintain lesional macrophage survival and cause its accumulation. Conclusions This study firstly demonstrated that MDL-1 is mainly expressed in atherosclerotic lesional macrophages and increased macrophage MDL-1 expression is associated with early plaque progression and promotes macrophage survival. Electronic supplementary material The online version of this article (10.1186/s12967-017-1336-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Weixin Xiong
- Department of Cardiology, Ruijin Hospital, Jiao Tong University School of Medicine, No. 197, Ruijin Er Road, Huangpu District, Shanghai, 200025, China
| | - Haibo Wang
- Institute of Cardiovascular Disease, Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Lin Lu
- Department of Cardiology, Ruijin Hospital, Jiao Tong University School of Medicine, No. 197, Ruijin Er Road, Huangpu District, Shanghai, 200025, China.,Institute of Cardiovascular Disease, Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Rui Xi
- Department of Cardiology, Ruijin Hospital, Jiao Tong University School of Medicine, No. 197, Ruijin Er Road, Huangpu District, Shanghai, 200025, China
| | - Fang Wang
- Department of Cardiology, Ruijin Hospital, Jiao Tong University School of Medicine, No. 197, Ruijin Er Road, Huangpu District, Shanghai, 200025, China
| | - Gang Gu
- Department of Cardiology, Ruijin Hospital, Jiao Tong University School of Medicine, No. 197, Ruijin Er Road, Huangpu District, Shanghai, 200025, China.
| | - Rong Tao
- Department of Cardiology, Ruijin Hospital, Jiao Tong University School of Medicine, No. 197, Ruijin Er Road, Huangpu District, Shanghai, 200025, China.
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Okamoto K, Nakashima T, Shinohara M, Negishi-Koga T, Komatsu N, Terashima A, Sawa S, Nitta T, Takayanagi H. Osteoimmunology: The Conceptual Framework Unifying the Immune and Skeletal Systems. Physiol Rev 2017; 97:1295-1349. [DOI: 10.1152/physrev.00036.2016] [Citation(s) in RCA: 241] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 03/29/2017] [Accepted: 04/04/2017] [Indexed: 12/13/2022] Open
Abstract
The immune and skeletal systems share a variety of molecules, including cytokines, chemokines, hormones, receptors, and transcription factors. Bone cells interact with immune cells under physiological and pathological conditions. Osteoimmunology was created as a new interdisciplinary field in large part to highlight the shared molecules and reciprocal interactions between the two systems in both heath and disease. Receptor activator of NF-κB ligand (RANKL) plays an essential role not only in the development of immune organs and bones, but also in autoimmune diseases affecting bone, thus effectively comprising the molecule that links the two systems. Here we review the function, gene regulation, and signal transduction of osteoimmune molecules, including RANKL, in the context of osteoclastogenesis as well as multiple other regulatory functions. Osteoimmunology has become indispensable for understanding the pathogenesis of a number of diseases such as rheumatoid arthritis (RA). We review the various osteoimmune pathologies, including the bone destruction in RA, in which pathogenic helper T cell subsets [such as IL-17-expressing helper T (Th17) cells] induce bone erosion through aberrant RANKL expression. We also focus on cellular interactions and the identification of the communication factors in the bone marrow, discussing the contribution of bone cells to the maintenance and regulation of hematopoietic stem and progenitors cells. Thus the time has come for a basic reappraisal of the framework for understanding both the immune and bone systems. The concept of a unified osteoimmune system will be absolutely indispensable for basic and translational approaches to diseases related to bone and/or the immune system.
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Affiliation(s)
- Kazuo Okamoto
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Tomoki Nakashima
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Masahiro Shinohara
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Takako Negishi-Koga
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Noriko Komatsu
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Asuka Terashima
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Shinichiro Sawa
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Takeshi Nitta
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
| | - Hiroshi Takayanagi
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Tokyo, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo, Japan
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Xavier-Carvalho C, Cezar RDDS, Freire NM, Vasconcelos CMMD, Solorzano VEF, de Toledo-Pinto TG, Fialho LG, do Carmo RF, Vasconcelos LRS, Cordeiro MT, Baptista P, de Azeredo EL, da Cunha RV, de Souza LJ, Pacheco AG, Kubelka CF, Moura PMMFD, Moraes MO. Association of rs1285933 single nucleotide polymorphism in CLEC5A gene with dengue severity and its functional effects. Hum Immunol 2017; 78:649-656. [PMID: 28764923 DOI: 10.1016/j.humimm.2017.07.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 06/26/2017] [Accepted: 07/27/2017] [Indexed: 12/16/2022]
Abstract
Outbreaks of the Zika, dengue, and chikungunya viruses, especially in the Americas, pose a global threat due to their rapid spread and difficulty controlling the vector. Extreme phenotypes are often observed, from asymptomatic to severe clinical manifestations, which are well-studied in dengue. Host variations are also important contributors to disease outcomes, and many case-control studies have associated single nucleotide polymorphisms (SNPs) with severe dengue. Here, we found that the TC genotype and T-carriers for SNP rs1285933 in the C-type lectin superfamily member 5 (CLEC5A) gene was associated with severe dengue in a Northern Brazilian population (OR=2.75 and p-value=0.01, OR=2.11 and p-value=0.04, respectively). We also tested the functional effect of the CLEC5A protein and found that it is upregulated on the surface of human monocytes after in vitro dengue infection. CLEC5A was correlated with viral load inside the monocytes (Spearman r=0.55, p=0.008) and TNF production in culture supernatants (Spearman r=0.72, p=0.03). Analysis of mRNA in blood samples from DENV4-infected patients exhibiting mild symptoms showed that CLEC5A mRNA expression is correlated with TNF (r=0.67, p=0.0001) and other immune mediators. Monocytes from rs1285933 TT/TC individuals showed lower CLEC5A expression compared to CC genotypes. However, in these cells, CLEC5A was not correlated with TNF production. In summary, we confirmed that CLEC5A is genetically associated with dengue severity outcome, playing a central role during the immune response triggered by a dengue viral infection, and rs1285933 is a relevant SNP that is able to regulate signaling pathways after interactions between the dengue virus and CLEC5A receptors.
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Affiliation(s)
- Caroline Xavier-Carvalho
- Laboratório de Hanseníase, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, RJ, Brazil; Laboratório de Imunologia Viral, Instituto Oswaldo Cruz - FIOCRUZ, Rio de Janeiro, RJ, Brazil
| | | | - Naishe Matos Freire
- Faculdade de Ciências Médicas, Universidade de Pernambuco, Recife, PE, Brazil
| | | | | | | | - Luciana Gomes Fialho
- Laboratório de Imunologia Viral, Instituto Oswaldo Cruz - FIOCRUZ, Rio de Janeiro, RJ, Brazil
| | - Rodrigo Feliciano do Carmo
- Colegiado de Ciências Farmacêuticas, Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
| | - Luydson Richardson Silva Vasconcelos
- Faculdade de Ciências Médicas, Universidade de Pernambuco, Recife, PE, Brazil; Laboratório de Doenças Transmissíveis, Departamento de Parasitologia, FIOCRUZ, Recife, PE, Brazil
| | | | - Paulo Baptista
- Faculdade de Ciências Médicas, Universidade de Pernambuco, Recife, PE, Brazil
| | | | - Rivaldo Venâncio da Cunha
- Departamento de Clínica Médica, FM, Universidade Federal do Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Luiz José de Souza
- Centro de Referência em Dengue e Faculdade de Medicina, Campos de Goytacazes, RJ, Brazil
| | | | | | - Patrícia Muniz Mendes Freire de Moura
- Instituto de Ciências Biológicas, Universidade de Pernambuco, Recife, PE, Brazil; Laboratório de Doenças Transmissíveis, Departamento de Parasitologia, FIOCRUZ, Recife, PE, Brazil
| | - Milton Ozorio Moraes
- Laboratório de Hanseníase, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, RJ, Brazil.
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Humphrey MB, Nakamura MC. A Comprehensive Review of Immunoreceptor Regulation of Osteoclasts. Clin Rev Allergy Immunol 2017; 51:48-58. [PMID: 26573914 DOI: 10.1007/s12016-015-8521-8] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Osteoclasts require coordinated co-stimulation by several signaling pathways to initiate and regulate their cellular differentiation. Receptor activator for NF-κB ligand (RANKL or TNFSF11), a tumor necrosis factor (TNF) superfamily member, is the master cytokine required for osteoclastogenesis with essential co-stimulatory signals mediated by immunoreceptor tyrosine-based activation motif (ITAM)-signaling adaptors, DNAX-associated protein 12 kDa size (DAP12) and FcεRI gamma chain (FcRγ). The ITAM-signaling adaptors do not have an extracellular ligand-binding domain and, therefore, must pair with ligand-binding immunoreceptors to interact with their extracellular environment. DAP12 pairs with a number of different immunoreceptors including triggering receptor expressed on myeloid cells 2 (TREM2), myeloid DAP12-associated lectin (MDL-1), and sialic acid-binding immunoglobulin-type lectin 15 (Siglec-15); while FcRγ pairs with a different set of receptors including osteoclast-specific activating receptor (OSCAR), paired immunoglobulin receptor A (PIR-A), and Fc receptors. The ligands for many of these receptors in the bone microenvironment remain unknown. Here, we will review immunoreceptors known to pair with either DAP12 or FcRγ that have been shown to regulate osteoclastogenesis. Co-stimulation and the effects of ITAM-signaling have turned out to be complex, and now include paradoxical findings that ITAM-signaling adaptor-associated receptors can inhibit osteoclastogenesis and immunoreceptor tyrosine-based inhibitory motif (ITIM) receptors can promote osteoclastogenesis. Thus, co-stimulation of osteoclastogenesis continues to reveal additional complexities that are important in the regulatory mechanisms that seek to maintain bone homeostasis.
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Affiliation(s)
- Mary Beth Humphrey
- Division of Rheumatology, Immunology, and Allergy, Department of Medicine, University of Oklahoma Health Sciences Center, 975 NE 10th St., BRC209, Oklahoma City, OK, 73104, USA
| | - Mary C Nakamura
- Division of Rheumatology, Department of Medicine, University of California, San Francisco, CA, USA. .,Arthritis/Immunology Section, San Francisco Veterans Administration Medical Center, 4150 Clement St 111R, San Francisco, CA, 94121, USA.
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Huang YL, Chen ST, Liu RS, Chen YH, Lin CY, Huang CH, Shu PY, Liao CL, Hsieh SL. CLEC5A is critical for dengue virus-induced osteoclast activation and bone homeostasis. J Mol Med (Berl) 2016; 94:1025-37. [PMID: 27033255 PMCID: PMC4992505 DOI: 10.1007/s00109-016-1409-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 01/27/2016] [Accepted: 03/04/2016] [Indexed: 12/31/2022]
Abstract
Abstract Osteoclasts are bone tissue macrophages critical to maintain bone homeostasis. However, whether osteoclasts are susceptible to flaviviral infections and involved in dengue virus (DV)-induced disease pathogenesis is still unknown. In this study, we found that osteoclasts were preferentially susceptible to DV infection and produced similar amounts of cytokines and infectious virions as macrophages. Interestingly, DV-induced cytokine secretion and nuclear translocation of the transcription factor NFATc1 in osteoclast via the Syk-coupled myeloid C-type lectin member 5A (CLEC5A). Moreover, DV caused transient inflammatory reaction in bone tissue and upregulated osteolytic activity to release C-telopeptide of type I collagen (CTX-1) from bone tissue. Furthermore, DV-induced osteolytic activity was attenuated in CLEC5A-deficient mice, and administration of antagonistic anti-CLEC5A mAb inhibited DV-activated osteolytic activity and reduced CTX-1 serum level in vivo. This observation suggests that osteoclasts serve as a novel target for DV, and transient upregulation of osteolytic activity may contribute to the clinical symptoms in dengue patients. Key messages Cultured osteoclasts were susceptible to DV infection. Osteoclasts produced similar amounts of cytokines and infectious virions as macrophages. DV induced nuclear translocation of NFATc1 in osteoclast via CLEC5A. DV caused transient inflammatory reaction in bone tissue and upregulated osteolytic activity. Antagonistic anti-CLEC5A mAb inhibited DV-activated osteolytic activity in vivo.
Electronic supplementary material The online version of this article (doi:10.1007/s00109-016-1409-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ya-Lang Huang
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Szu-Ting Chen
- Department of Microbiology and Immunology, Taipei Medical University, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Genomics Research Center, Academia Sinica, 128, Academia Road, Sec. 2, Nankang District, Taipei, 115, Taiwan
| | - Ren-Shyan Liu
- Molecular and Genetic Imaging Core, Department of Nuclear Medicine, National Yang-Ming University Medical School and Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yen-Hsu Chen
- Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung City, Taiwan
| | - Chun-Yu Lin
- Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung City, Taiwan
| | - Chung-Hao Huang
- Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung City, Taiwan
| | - Pei-Yun Shu
- Divisions of Infectious Disease, Center for Disease Control, Taipei, Taiwan
| | - Ching-Len Liao
- Institute of Infectious Diseases and Vaccinology, National Health Research Institute, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan. .,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan. .,Genomics Research Center, Academia Sinica, 128, Academia Road, Sec. 2, Nankang District, Taipei, 115, Taiwan. .,Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.
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Abstract
In this chapter, a comprehensive overview of the known ligands for the C-type lectins (CTLs) is provided. Emphasis has been placed on the chemical structure of the glycans that bind to the different CTLs and the amount of structural variation (or overlap) that each CTL can tolerate. In this way, both the synthetic carbohydrate chemist and the immunologist can more readily gain insight into the existing structure-activity space for the CTL ligands and, ideally, see areas of synergy that will help identify and refine the ligands for these receptors.
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Affiliation(s)
- Sho Yamasaki
- Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
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Wortham BW, Eppert BL, Flury JL, Garcia SM, Donica WR, Osterburg A, Joyce-Shaikh B, Cua DJ, Borchers MT. Cutting Edge: CLEC5A Mediates Macrophage Function and Chronic Obstructive Pulmonary Disease Pathologies. THE JOURNAL OF IMMUNOLOGY 2016; 196:3227-31. [PMID: 26927798 DOI: 10.4049/jimmunol.1500978] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Accepted: 02/12/2016] [Indexed: 12/21/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a devastating disease with no effective therapies. We investigated the role of the C-type lectin receptor, CLEC5A, in macrophage activation and pulmonary pathogenesis in a mouse model of COPD. We demonstrate that CLEC5A is expressed on alveolar macrophages in mice exposed long-term to cigarette smoke (CS), as well as in human smokers. We also show that CLEC5A-mediated activation of macrophages enhanced cytokine elaboration alone, as well as in combination with LPS or GM-CSF in CS-exposed mice. Furthermore, usingClec5a-deficient mice, we demonstrate that CS-induced macrophage responsiveness is mediated by CLEC5A, and CLEC5A is required for the development of inflammation, proinflammatory cytokine expression, and airspace enlargement. These findings suggest a novel mechanism that promotes airway inflammation and pathologies in response to CS exposure and identifies CLEC5A as a novel target for the therapeutic control of COPD pathogenesis.
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Affiliation(s)
- Brian W Wortham
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267; and
| | - Bryan L Eppert
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267; and
| | - Jennifer L Flury
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267; and
| | - Sara Morgado Garcia
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267; and
| | - Walter R Donica
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267; and
| | - Andrew Osterburg
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267; and
| | | | - Daniel J Cua
- Merck Research Laboratories, Palo Alto, CA 94304
| | - Michael T Borchers
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267; and
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Ohradanova-Repic A, Machacek C, Fischer MB, Stockinger H. Differentiation of human monocytes and derived subsets of macrophages and dendritic cells by the HLDA10 monoclonal antibody panel. Clin Transl Immunology 2016; 5:e55. [PMID: 26900469 PMCID: PMC4735061 DOI: 10.1038/cti.2015.39] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 11/30/2015] [Accepted: 12/01/2015] [Indexed: 12/26/2022] Open
Abstract
The mononuclear phagocyte system, consisting of monocytes, macrophages and dendritic cells (DCs), has an important role in tissue homeostasis as well as in eliciting immune responses against invading pathogens. Blood monocytes have been viewed for decades as precursors of tissue macrophages. Although the newest data show that in the steady state resident macrophages of many organs are monocyte independent, blood monocytes critically contribute to tissue macrophage and DC pools upon inflammation. To better understand the relationship between these populations and their phenotype, we isolated and differentiated human blood CD14+ monocytes in vitro into immature and mature monocyte-derived dendritic cells (MoDCs) as well as into seven different monocyte-derived macrophage subsets. We used the panel of 70 monoclonal antibodies (mAbs) submitted to the 10th Human Leukocyte Differentiation Antigen Workshop to determine the expression profiles of these 10 populations by flow cytometry. We now can compile subpanels of mAbs to differentiate the 10 monocyte/macrophage/MoDC subsets, providing the basis for novel diagnostic and therapeutic tools.
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Affiliation(s)
- Anna Ohradanova-Repic
- Molecular Immunology Unit, Institute for Hygiene and Applied Immunology, Centre for Pathophysiology, Infectiology and Immunology, Medical University of Vienna , Vienna, Austria
| | - Christian Machacek
- Molecular Immunology Unit, Institute for Hygiene and Applied Immunology, Centre for Pathophysiology, Infectiology and Immunology, Medical University of Vienna , Vienna, Austria
| | - Michael B Fischer
- Department of Transfusion Medicine, Medical University of Vienna, Vienna, Austria; Department for Health Sciences and Biomedicine, Center for Biomedical Technology, Danube University Krems, Krems, Austria
| | - Hannes Stockinger
- Molecular Immunology Unit, Institute for Hygiene and Applied Immunology, Centre for Pathophysiology, Infectiology and Immunology, Medical University of Vienna , Vienna, Austria
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Das A, Chai JC, Yang CS, Lee YS, Das ND, Jung KH, Chai YG. Dual transcriptome sequencing reveals resistance of TLR4 ligand-activated bone marrow-derived macrophages to inflammation mediated by the BET inhibitor JQ1. Sci Rep 2015; 5:16932. [PMID: 26582142 PMCID: PMC4652239 DOI: 10.1038/srep16932] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 10/05/2015] [Indexed: 01/08/2023] Open
Abstract
Persistent macrophage activation is associated with the expression of various pro-inflammatory genes, cytokines and chemokines, which may initiate or amplify inflammatory disorders. A novel synthetic BET inhibitor, JQ1, was proven to exert immunosuppressive activities in macrophages. However, a genome-wide search for JQ1 molecular targets has not been undertaken. The present study aimed at evaluating the anti-inflammatory function and underlying genes that are targeted by JQ1 in LPS-stimulated primary bone marrow-derived macrophages (BMDMs) using global transcriptomic RNA sequencing and quantitative real-time PCR. Among the annotated genes, transcriptional sequencing of BMDMs that were treated with JQ1 revealed a selective effect on LPS-induced gene expression in which the induction of cytokines/chemokines, interferon-stimulated genes, and prominent (transcription factors) TFs was suppressed. Additionally, we found that JQ1 reduced the expression of previously unidentified genes that are important in inflammation. Importantly, these inflammatory genes were not affected by JQ1 treatment alone. Furthermore, we confirmed that JQ1 reduced cytokines/chemokines in the supernatants of LPS treated BMDMs. Moreover, the biological pathways and gene ontology of the differentially expressed genes were determined in the JQ1 treatment of BMDMs. These unprecedented results suggest that the BET inhibitor JQ1 is a candidate for the prevention or therapeutic treatment of inflammatory disorders.
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Affiliation(s)
- Amitabh Das
- Department of Bionanotechnology, Hanyang University, Seoul, 133-791, Republic of Korea
| | - Jin Choul Chai
- Department of Molecular &Life Sciences, Hanyang University, Ansan, 426-791, Republic of Korea
| | - Chul-Su Yang
- Department of Molecular &Life Sciences, Hanyang University, Ansan, 426-791, Republic of Korea
| | - Young Seek Lee
- Department of Molecular &Life Sciences, Hanyang University, Ansan, 426-791, Republic of Korea
| | - Nando Dulal Das
- Epigenetics Drug Discovery Unit, Division of Structural &Synthetic Biology, RIKEN Center for Life Science Technologies, 1-7-22 Suehiro-cho, Yokohama 230-0045, Japan
| | - Kyoung Hwa Jung
- Institute of Natural Science &Technology, Hanyang University, Ansan, 426-791, Republic of Korea
| | - Young Gyu Chai
- Department of Bionanotechnology, Hanyang University, Seoul, 133-791, Republic of Korea.,Department of Molecular &Life Sciences, Hanyang University, Ansan, 426-791, Republic of Korea
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Shimizu T, Takahata M, Kameda Y, Endo T, Hamano H, Hiratsuka S, Ota M, Iwasaki N. Sialic acid-binding immunoglobulin-like lectin 15 (Siglec-15) mediates periarticular bone loss, but not joint destruction, in murine antigen-induced arthritis. Bone 2015; 79:65-70. [PMID: 26027508 DOI: 10.1016/j.bone.2015.05.029] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 05/20/2015] [Accepted: 05/21/2015] [Indexed: 01/01/2023]
Abstract
Osteoclastogenesis requires immunoreceptor tyrosine-based activation motif signaling. Multiple immunoreceptors associated with immunoreceptor tyrosine-based activation motif adaptor proteins, including DNAX-activating protein 12 kDa (DAP12) and Fc receptor common γ (FcRγ), have been identified in osteoclast lineage cells, and some are involved in arthritis-induced bone destruction. Sialic acid-binding immunoglobulin-like lectin 15 (Siglec-15) is an immunoreceptor that regulates osteoclast development and bone resorption in association with DAP12. Whether Siglec-15 is involved in arthritis-induced bone lesions, however, remains unknown. Here we used a murine antigen-induced arthritis model to examine the role of Siglec-15 in the development of bone lesions induced by joint inflammation. Arthritis was unilaterally induced in the knee joints of 8-week-old female wild-type (WT) and Siglec-15(-/-) mice, and the contralateral knees were used as a control. The degree of joint inflammation, and cartilage and subchondral bone destruction in Siglec-15(-/-) mice was comparable to that in WT mice, indicating that Siglec-15 is not involved in the development of arthritis and concomitant cartilage and subchondral bone destruction. On the other hand, the degree of periarticular bone loss in the proximal tibia of the arthritic knee was significantly lower in Siglec-15(-/-) mice compared to WT mice. Although osteoclast formation in the metaphysis was enhanced in both WT and Siglec-15(-/-) mice after arthritis induction, mature multinucleated osteoclast formation was impaired in Siglec-15(-/-) mice, indicating impaired osteoclast bone resorptive function in the periarticular regions of the arthritic joint in Siglec-15(-/-) mice. Confirming this result, Siglec-15(-/-) primary unfractionated bone marrow cells harvested from arthritic femurs and tibiae failed to develop into mature multinuclear osteoclasts. Our findings suggest that Siglec-15 is a therapeutic target for periarticular bone loss, but not for joint destruction, in inflammatory arthritis, such as rheumatoid arthritis.
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Affiliation(s)
- Tomohiro Shimizu
- Hokkaido University, Department of Orthopedic Surgery, School of Medicine, Sapporo, Japan
| | - Masahiko Takahata
- Hokkaido University, Department of Orthopedic Surgery, School of Medicine, Sapporo, Japan.
| | - Yusuke Kameda
- Hokkaido University, Department of Orthopedic Surgery, School of Medicine, Sapporo, Japan
| | - Tsutomu Endo
- Hokkaido University, Department of Orthopedic Surgery, School of Medicine, Sapporo, Japan
| | - Hiroki Hamano
- Hokkaido University, Department of Orthopedic Surgery, School of Medicine, Sapporo, Japan
| | - Shigeto Hiratsuka
- Hokkaido University, Department of Orthopedic Surgery, School of Medicine, Sapporo, Japan
| | - Masahiro Ota
- Hokkaido University, Department of Orthopedic Surgery, School of Medicine, Sapporo, Japan
| | - Norimasa Iwasaki
- Hokkaido University, Department of Orthopedic Surgery, School of Medicine, Sapporo, Japan
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Molecular diagnostics identifies risks for graft dysfunction despite borderline histologic changes. Kidney Int 2015; 88:785-95. [DOI: 10.1038/ki.2015.211] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 05/06/2015] [Accepted: 05/07/2015] [Indexed: 11/09/2022]
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Dolcino M, Ottria A, Barbieri A, Patuzzo G, Tinazzi E, Argentino G, Beri R, Lunardi C, Puccetti A. Gene Expression Profiling in Peripheral Blood Cells and Synovial Membranes of Patients with Psoriatic Arthritis. PLoS One 2015; 10:e0128262. [PMID: 26086874 PMCID: PMC4473102 DOI: 10.1371/journal.pone.0128262] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 04/24/2015] [Indexed: 12/22/2022] Open
Abstract
Background Psoriatic arthritis (PsA) is an inflammatory arthritis whose pathogenesis is poorly understood; it is characterized by bone erosions and new bone formation. The diagnosis of PsA is mainly clinical and diagnostic biomarkers are not yet available. The aim of this work was to clarify some aspects of the disease pathogenesis and to identify specific gene signatures in paired peripheral blood cells (PBC) and synovial biopsies of patients with PsA. Moreover, we tried to identify biomarkers that can be used in clinical practice. Methods PBC and synovial biopsies of 10 patients with PsA were used to study gene expression using Affymetrix arrays. The expression values were validated by Q-PCR, FACS analysis and by the detection of soluble mediators. Results Synovial biopsies of patients showed a modulation of approximately 200 genes when compared to the biopsies of healthy donors. Among the differentially expressed genes we observed the upregulation of Th17 related genes and of type I interferon (IFN) inducible genes. FACS analysis confirmed the Th17 polarization. Moreover, the synovial trascriptome shows gene clusters (bone remodeling, angiogenesis and inflammation) involved in the pathogenesis of PsA. Interestingly 90 genes are modulated in both compartments (PBC and synovium) suggesting that signature pathways in PBC mirror those of the inflamed synovium. Finally the osteoactivin gene was upregulared in both PBC and synovial biopsies and this finding was confirmed by the detection of high levels of osteoactivin in PsA sera but not in other inflammatory arthritides. Conclusions We describe the first analysis of the trancriptome in paired synovial tissue and PBC of patients with PsA. This study strengthens the hypothesis that PsA is of autoimmune origin since the coactivity of IFN and Th17 pathways is typical of autoimmunity. Finally these findings have allowed the identification of a possible disease biomarker, osteoactivin, easily detectable in PsA serum.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Antonio Puccetti
- Institute G. Gaslini, Genova, Italy
- University of Genova, Genova, Italy
- * E-mail:
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Chen X, Eksioglu EA, Carter JD, Fortenbery N, Donatelli SS, Zhou J, Liu J, Yang L, Gilvary D, Djeu J, Wei S. Inactivation of DAP12 in PMN inhibits TREM1-mediated activation in rheumatoid arthritis. PLoS One 2015; 10:e0115116. [PMID: 25642940 PMCID: PMC4313943 DOI: 10.1371/journal.pone.0115116] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Accepted: 11/19/2014] [Indexed: 11/18/2022] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease characterized by dysregulated and chronic systemic inflammatory responses that affect the synovium, bone, and cartilage causing damage to extra-articular tissue. Innate immunity is the first line of defense against invading pathogens and assists in the initiation of adaptive immune responses. Polymorphonuclear cells (PMNs), which include neutrophils, are the largest population of white blood cells in peripheral blood and functionally produce their inflammatory effect through phagocytosis, cytokine production and natural killer-like cytotoxic activity. TREM1 (triggering receptor expressed by myeloid cells) is an inflammatory receptor in PMNs that signals through the use of the intracellular activating adaptor DAP12 to induce downstream signaling. After TREM crosslinking, DAP12's tyrosines in its ITAM motif get phosphorylated inducing the recruitment of Syk tyrosine kinases and eventual activation of PI3 kinases and ERK signaling pathways. While both TREM1 and DAP12 have been shown to be important activators of RA pathogenesis, their activity in PMNs or the importance of DAP12 as a possible therapeutic target have not been shown. Here we corroborate, using primary RA specimens, that isolated PMNs have an increased proportion of both TREM1 and DAP12 compared to normal healthy control isolated PMNs both at the protein and gene expression levels. This increased expression is highly functional with increased activation of ERK and MAPKs, secretion of IL-8 and RANTES and cytotoxicity of target cells. Importantly, based on our hypothesis of an imbalance of activating and inhibitory signaling in the pathogenesis of RA we demonstrate that inhibition of the DAP12 signaling pathway inactivates these important inflammatory cells.
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Affiliation(s)
- Xianghong Chen
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - Erika A. Eksioglu
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - John D. Carter
- Department of Internal Medicine, Division of Rheumatology, University of South Florida College of Medicine, Tampa, Florida, United States of America
| | - Nicole Fortenbery
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - Sarah S. Donatelli
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - Junmin Zhou
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - Jinhong Liu
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - Lili Yang
- Department of Immunology, Tianjin Medical University Cancer Hospital and Research Institute, Tianjin, China
| | - Danielle Gilvary
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - Julie Djeu
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - Sheng Wei
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
- Department of Immunology, Tianjin Medical University Cancer Hospital and Research Institute, Tianjin, China
- * E-mail:
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Kameda Y, Takahata M, Mikuni S, Shimizu T, Hamano H, Angata T, Hatakeyama S, Kinjo M, Iwasaki N. Siglec-15 is a potential therapeutic target for postmenopausal osteoporosis. Bone 2015; 71:217-26. [PMID: 25460183 DOI: 10.1016/j.bone.2014.10.027] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 10/16/2014] [Accepted: 10/23/2014] [Indexed: 11/25/2022]
Abstract
Sialic acid-binding immunoglobulin-like lectin 15 (Siglec-15) is an immunoreceptor that regulates osteoclast development and bone resorption in association with an immunoreceptor tyrosine-based activation motif (ITAM) adaptor protein, DNAX-activating protein 12kDa (DAP12). Although Siglec-15 has an important role in physiologic bone remodeling by modulating RANKL signaling, it is unclear whether it is involved in pathologic bone loss in which multiple osteoclastogenic factors participate in excessive osteoclastogenesis. Here we demonstrated that Siglec-15 is involved in estrogen deficiency-induced bone loss. WT and Siglec-15(-/-) mice were ovariectomized (Ovx) or sham-operated at 14wk of age and their skeletal phenotype was evaluated at 18 and 22wk of age. Siglec-15(-/-) mice showed resistance to estrogen deficiency-induced bone loss compared to WT mice. Although the number of tartrate-resistant acid phosphatase (TRAP)-positive osteoclasts increased after ovariectomy in both WT and Siglec-15(-/-) mice, the increase was lower in Siglec-15(-/-) mice than in WT mice. Importantly, osteoclasts in Siglec-15(-/-) mice were small and failed to spread on the bone surface, indicating impaired osteoclast differentiation. Because upregulated production of TNF-α as well as RANKL is mainly responsible for estrogen deficiency-induced development of osteoclasts, we examined whether Siglec-15 deficiency affects TNF-α-induced osteoclastogenesis in vitro. The TNF-α mediated induction of TRAP-positive multinucleated cells was impaired in Siglec-15(-/-) cells, suggesting that Siglec-15 is involved in TNF-α induced osteoclastogenesis. We also confirmed that signaling through osteoclast-associated receptor/Fc receptor common γ chain, which is an alternative ITAM adaptor to DAP12, rescues multinucleation but not cytoskeletal organization of TNF-α and RANKL-induced Siglec-15(-/-) osteoclasts, indicating that the Siglec-15/DAP12 pathway is especially important for cytoskeletal organization of osteoclasts in both RANKL and TNF-α induced osteoclastogenesis. The present findings indicate that Siglec-15 is involved in estrogen deficiency-induced differentiation of osteoclasts and is thus a potential therapeutic target for postmenopausal osteoporosis.
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Affiliation(s)
- Yusuke Kameda
- Hokkaido University, Department of Orthopedic Surgery, School of Medicine, Sapporo, Japan
| | - Masahiko Takahata
- Hokkaido University, Department of Orthopedic Surgery, School of Medicine, Sapporo, Japan.
| | - Shintaro Mikuni
- Hokkaido University, Laboratory of Molecular Cell Dynamics, Faculty of Advanced Life Science, Sapporo, Japan
| | - Tomohiro Shimizu
- Hokkaido University, Department of Orthopedic Surgery, School of Medicine, Sapporo, Japan
| | - Hiroki Hamano
- Hokkaido University, Department of Orthopedic Surgery, School of Medicine, Sapporo, Japan
| | - Takashi Angata
- Institute of Biological Chemistry, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei 11529, Taiwan
| | | | - Masataka Kinjo
- Hokkaido University, Laboratory of Molecular Cell Dynamics, Faculty of Advanced Life Science, Sapporo, Japan
| | - Norimasa Iwasaki
- Hokkaido University, Department of Orthopedic Surgery, School of Medicine, Sapporo, Japan
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