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Kunnathattil M, Rahul P, Skaria T. Soluble vascular endothelial glycocalyx proteoglycans as potential therapeutic targets in inflammatory diseases. Immunol Cell Biol 2024; 102:97-116. [PMID: 37982607 DOI: 10.1111/imcb.12712] [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: 10/10/2023] [Revised: 10/30/2023] [Accepted: 10/30/2023] [Indexed: 11/21/2023]
Abstract
Reducing the activity of cytokines and leukocyte extravasation is an emerging therapeutic strategy to limit tissue-damaging inflammatory responses and restore immune homeostasis in inflammatory diseases. Proteoglycans embedded in the vascular endothelial glycocalyx, which regulate the activity of cytokines to restrict the inflammatory response in physiological conditions, are proteolytically cleaved in inflammatory diseases. Here we critically review the potential of proteolytically shed, soluble vascular endothelial glycocalyx proteoglycans to modulate pathological inflammatory responses. Soluble forms of the proteoglycans syndecan-1, syndecan-3 and biglycan exert beneficial anti-inflammatory effects by the removal of chemokines, suppression of proinflammatory cytokine expression and leukocyte migration, and induction of autophagy of proinflammatory M1 macrophages. By contrast, soluble versikine and decorin enhance proinflammatory responses by increasing inflammatory cytokine synthesis and leukocyte migration. Endogenous syndecan-2 and mimecan exert proinflammatory effects, syndecan-4 and perlecan mediate beneficial anti-inflammatory effects and glypican regulates Hh and Wnt signaling pathways involved in systemic inflammatory responses. Taken together, targeting the vascular endothelial glycocalyx-derived, soluble syndecan-1, syndecan-2, syndecan-3, syndecan-4, biglycan, versikine, mimecan, perlecan, glypican and decorin might be a potential therapeutic strategy to suppress overstimulated cytokine and leukocyte responses in inflammatory diseases.
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Affiliation(s)
- Maneesha Kunnathattil
- Department of Zoology, Government College Madappally, University of Calicut, Calicut, Kerala, India
| | - Pedapudi Rahul
- School of Biotechnology, National Institute of Technology Calicut, Calicut, Kerala, India
| | - Tom Skaria
- School of Biotechnology, National Institute of Technology Calicut, Calicut, Kerala, India
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Zhong Y, Li F, Zhang S, Yang Z, Ren X, Cao X, Xu Y, Guo D, Zhou Y, Mao F, Shen S, Sun Q. Syndecan-1 as an immunogene in Triple-negative breast cancer: regulation tumor-infiltrating lymphocyte in the tumor microenviroment and EMT by TGFb1/Smad pathway. Cancer Cell Int 2023; 23:76. [PMID: 37069585 PMCID: PMC10111802 DOI: 10.1186/s12935-023-02917-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 04/03/2023] [Indexed: 04/19/2023] Open
Abstract
BACKGROUND Immune checkpoint inhibitors are the most studied forms of immunotherapy for triple-negative breast cancer (TNBC). The Cancer Genome Map (TCGA) and METABRIC project provide large-scale cancer samples that can be used for comprehensive and reliable immunity-related gene research. METHODS We analyzed data from TCGA and METABRIC and established an immunity-related gene prognosis model for breast cancer. The SDC1 expression in tumor and cancer associated fibroblasts (CAFs) was then observed in 282 TNBC patients by immunohistochemistry. The effects of SDC1 on MDA-MB-231 proliferation, migration and invasion were evaluated. Qualitative real-time PCR and western blotting were performed to identify mRNA and protein expression, respectively. RESULTS SDC1, as a key immunity-related gene, was significantly correlated with survival in the TCGA and METABRIC databases, while SDC1 was found to be highly expressed in TNBC in the METABRIC database. In the TNBC cohort, patients with high SDC1 expression in tumor cells and low expression in CAFs had significantly lower disease-free survival (DFS) and fewer tumor-infiltrating lymphocytes (TILs). The downregulation of SDC1 decreased the proliferation of MDA-MB-231, while promoting the migration of MDA-MB-231 cells by reducing the gene expression of E-cadherin and TGFb1 and activating p-Smad2 and p-Smad3 expression. CONCLUSION SDC1 is a key immunity-related gene that is highly expressed TNBC patients. Patients with high SDC1 expression in tumors and low expression in CAFs had poor prognoses and low TILs. Our findings also suggest that SDC1 regulates the migration of MDA-MB-231 breast cancer cells through a TGFb1-Smad and E-cadherin-dependent mechanism.
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Affiliation(s)
- Ying Zhong
- Department of Breast Disease, Peking Union Medical College Hospital, No. 1 Shuaifuyuan, Wangfujing, Beijing, 100730, China
| | - Fangyuan Li
- Medical Research Central, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Wangfujing, Beijing, 100730, China
- Clinical Biobank, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Wangfujing, Beijing, 100730, China
| | - Sumei Zhang
- Medical Research Central, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Wangfujing, Beijing, 100730, China
- Clinical Biobank, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Wangfujing, Beijing, 100730, China
| | - Zhenli Yang
- Cell Resource Center, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS) & School of Basic Medicine, Peking Union Medical College, No. 5 Dongdansantiao, Dongcheng, Beijing, 100730, China
| | - Xinyu Ren
- Department of Pathology, Peking Union Medical College Hospital, No. 1 Shuaifuyuan, Wangfujing, Beijing, 100730, China
| | - Xi Cao
- Department of Breast Disease, Peking Union Medical College Hospital, No. 1 Shuaifuyuan, Wangfujing, Beijing, 100730, China
| | - Yali Xu
- Department of Breast Disease, Peking Union Medical College Hospital, No. 1 Shuaifuyuan, Wangfujing, Beijing, 100730, China
| | - Dan Guo
- Medical Research Central, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Wangfujing, Beijing, 100730, China
- Clinical Biobank, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Wangfujing, Beijing, 100730, China
| | - Yidong Zhou
- Department of Breast Disease, Peking Union Medical College Hospital, No. 1 Shuaifuyuan, Wangfujing, Beijing, 100730, China
| | - Feng Mao
- Department of Breast Disease, Peking Union Medical College Hospital, No. 1 Shuaifuyuan, Wangfujing, Beijing, 100730, China
| | - Songjie Shen
- Department of Breast Disease, Peking Union Medical College Hospital, No. 1 Shuaifuyuan, Wangfujing, Beijing, 100730, China
| | - Qiang Sun
- Department of Breast Disease, Peking Union Medical College Hospital, No. 1 Shuaifuyuan, Wangfujing, Beijing, 100730, China.
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Zhang X, Zhao Y, Liu L, He Y. Syndecan-1: A Novel Diagnostic and Therapeutic Target in Liver Diseases. Curr Drug Targets 2023; 24:1155-1165. [PMID: 37957867 DOI: 10.2174/0113894501250057231102061624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 09/12/2023] [Accepted: 10/17/2023] [Indexed: 11/15/2023]
Abstract
Syndecan-1 (SDC-1), known as a coreceptor of various growth factors or an integrin binding partner, regulates various cell behaviours. Under certain pathological conditions, SDC-1 is shed from the cell surface and plays a protective or pathogenic role in various diseases. In the liver, SDC-1 is highly expressed in hepatocytes, where it is localized on the basolateral surface. It is critical to the cellular and molecular functions of hepatocytes, including their attachment to hepatitis viruses. Previous studies have reported that SDC-1 may function as a novel and promising diagnostic and therapeutic marker for various liver diseases, such as drug-induced liver injury, liver fibrosis, and liver cancer. In this review, we summarize related research and highlight the mechanisms by which SDC-1 participates in the pathogenesis of liver diseases, as well as its potential diagnostic and therapeutic applications. This review is expected to lay the foundation for further therapeutic strategies to target SDC-1 in liver diseases.
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Affiliation(s)
- Xiaoli Zhang
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
- National Regional Infectious Diseases Center Co-constructed by National Health Commission of PRC and People's Government of Shaanxi Province, Xi'an, China
| | - Yalei Zhao
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
- National Regional Infectious Diseases Center Co-constructed by National Health Commission of PRC and People's Government of Shaanxi Province, Xi'an, China
| | - Liangru Liu
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
- National Regional Infectious Diseases Center Co-constructed by National Health Commission of PRC and People's Government of Shaanxi Province, Xi'an, China
| | - Yingli He
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
- National Regional Infectious Diseases Center Co-constructed by National Health Commission of PRC and People's Government of Shaanxi Province, Xi'an, China
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Anderson AR, Cook GA. Recombinant expression, purification, and structural analysis of two ectodomains of Syndecan-1. Protein Expr Purif 2022; 201:106170. [PMID: 36179942 DOI: 10.1016/j.pep.2022.106170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 08/12/2022] [Accepted: 09/06/2022] [Indexed: 11/17/2022]
Abstract
Syndecan-1 (SDC-1) is an integral membrane heparin sulfate proteoglycan that is involved in inflammatory response, cell-signaling, cell proliferation, and numerous other cell-matrix interactions. Like the other members of the syndecan family, very little is known about structural conformations and dynamics of SDC-1. A majority of interactions occur through the extracellular ectodomain, therefore we have dedicated our research efforts to the study this specific portion of SDC-1. The ectodomain is often shed from the cell surface due to various stimuli. The released fragment has already been used as a useful biomarker for prognosis of some diseases and cancers. SDC-1 can be cleaved in different locations depending on the sheddase, generating soluble shed ectodomains that can be carried away in blood sera. In this study, we focus specifically on two main cleavage fragments that can be generated. We show the first successful expression and purification of recombinant SDC-1 ectodomains. Production of SDC-1 in E. coli allows the production of the core protein without risking heterogeneous post-translational modifications such as glycosylation, allowing a certain level of control over protein homogeneity that is not possible in mammalian expression. An expression vector was used to generate two different fusion proteins consisting of a His-tag and a TEV cleavage site for the removal of the fusion partner. SDS-PAGE was used to track the expression as well as the purification. Masses of the isolated proteins were determined using mass spectrometry and the purity and homogeneity were evaluated by solution NMR.
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Affiliation(s)
- Austin R Anderson
- Department of Chemistry, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Gabriel A Cook
- Department of Chemistry, Oklahoma State University, Stillwater, OK, 74078, USA.
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Milusev A, Rieben R, Sorvillo N. The Endothelial Glycocalyx: A Possible Therapeutic Target in Cardiovascular Disorders. Front Cardiovasc Med 2022; 9:897087. [PMID: 35647072 PMCID: PMC9136230 DOI: 10.3389/fcvm.2022.897087] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 04/21/2022] [Indexed: 12/15/2022] Open
Abstract
The physiological, anti-inflammatory, and anti-coagulant properties of endothelial cells (ECs) rely on a complex carbohydrate-rich layer covering the luminal surface of ECs, called the glycocalyx. In a range of cardiovascular disorders, glycocalyx shedding causes endothelial dysfunction and inflammation, underscoring the importance of glycocalyx preservation to avoid disease initiation and progression. In this review we discuss the physiological functions of the glycocalyx with particular focus on how loss of endothelial glycocalyx integrity is linked to cardiovascular risk factors, like hypertension, aging, diabetes and obesity, and contributes to the development of thrombo-inflammatory conditions. Finally, we consider the role of glycocalyx components in regulating inflammatory responses and discuss possible therapeutic interventions aiming at preserving or restoring the endothelial glycocalyx and therefore protecting against cardiovascular disease.
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Affiliation(s)
- Anastasia Milusev
- Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences (GCB), University of Bern, Bern, Switzerland
| | - Robert Rieben
- Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland
| | - Nicoletta Sorvillo
- Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland
- *Correspondence: Nicoletta Sorvillo
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Abstract
Cell surface proteoglycans, such as syndecans and glypicans, regulate molecular interactions that mediate cell adhesion, migration, proliferation, and differentiation. Through these activities, surface proteoglycans modulate critical biological processes of development, inflammation, infection, tissue repair, and cancer metastasis. Proteoglycans are unique glycoproteins comprised of one or several glycosaminoglycans attached covalently to core proteins. Glycosaminoglycans mediate the majority of ligand-binding functions of proteoglycans. Accumulating evidence indicates that surface proteoglycans regulate the onset, progression, and outcome of lung diseases, including lung injury, infection, fibrosis, and cancer. This article will review key features of surface proteoglycan biology in lung health and disease.
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Zhang D, Qiao XR, Cui WJ, Zhang JT, Pan Y, Liu XF, Dong L. Syndecan-1 Amplifies Ovalbumin-Induced Airway Remodeling by Strengthening TGFβ1/Smad3 Action. Front Immunol 2021; 12:744477. [PMID: 34671356 PMCID: PMC8521046 DOI: 10.3389/fimmu.2021.744477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 09/17/2021] [Indexed: 11/25/2022] Open
Abstract
Syndecan-1 (SDC-1) is a transmembrane proteoglycan of heparin sulfate that can regulate various cell signal transduction pathways in the airway epithelial cells and fibroblasts. Airway epithelial cells and human bronchial fibroblasts are crucial in airway remodeling. However, the importance of SDC-1 in the remodeling of asthmatic airways has not been confirmed yet. The present study was the first to uncover SDC-1 overexpression in the airways of humans and mice with chronic asthma. This study also validated that an increase in SDC-1 expression was correlated with TGFβ1/Smad3-mediated airway remodeling in vivo and in vitro. A small interfering RNA targeting SDC-1 (SDC-1 siRNA) and homo-SDC-1 in pcDNA3.1 (pc-SDC-1) was designed to assess the effects of SDC-1 on TGFβ1/Smad3-mediated collagen I expression in Beas-2B (airway epithelial cells) and HLF-1 (fibroblasts) cells. Downregulation of the SDC-1 expression by SDC-1 siRNA remarkably attenuated TGFβ1-induced p-Smad3 levels and collagen I expression in Beas-2B and HLF-1 cells. In addition, SDC-1 overexpression with pc-SDC-1 enhanced TGFβ1-induced p-Smad3 level and collagen I expression in Beas-2B and HLF-1 cells. Furthermore, the levels of p-Smad3 and collagen I induced by TGFβ1 were slightly increased after the addition of the recombinant human SDC-1 protein to Beas-2B and HLF-1 cells. These findings in vitro were also confirmed in a mouse model. A short hairpin RNA targeting SDC-1 (SDC-1 shRNA) to interfere with SDC-1 expression considerably reduced the levels of p-Smad3 and remodeling protein (α-SMA, collagen I) in the airways induced by ovalbumin (OVA). Similarly, OVA-induced p-Smad3 and remodeling protein levels in airways increased after mice inhalation with the recombinant mouse SDC-1 protein. These results suggested that SDC-1 of airway epithelial cells and fibroblasts plays a key role in the development of airway remodeling in OVA-induced chronic asthma.
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Affiliation(s)
- Dong Zhang
- Department of Respiratory, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xin-Rui Qiao
- Department of Respiratory, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Wen-Jing Cui
- Department of Respiratory, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jin-Tao Zhang
- Department of Respiratory, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yun Pan
- Department of Respiratory, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiao-Fei Liu
- Department of Respiratory, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Liang Dong
- Department of Respiratory, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Respiratory, Shandong Institute of Respiratory Diseases, The First Affiliated Hospital of Shandong First Medical University, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
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Hong H, Song HK, Jang B, Park E, Han DS, Kim SE, Oh ES. Colocalization with MMP-7 in the Distal Colon is Crucial for Syndecan-2 Shedding in Dextran Sulfate Sodium-Induced Colitis Mice. J Inflamm Res 2021; 14:4987-5000. [PMID: 34616168 PMCID: PMC8488046 DOI: 10.2147/jir.s329234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/21/2021] [Indexed: 12/19/2022] Open
Abstract
Introduction Syndecan-2 expression is elevated during chronic inflammation and cancer development, and its shedding is observed in cancer patients. However, it remained unknown whether inflammation triggers syndecan-2 shedding. Methods The colitis model was produced in C57BL/6 mice by oral administration of 2–3% dextran sulfate sodium (DSS) in the drinking water. Syndecan-2 and MMP-7 expression levels in tissues and cells were detected by real-time PCR, Western blotting, and immunohistochemistry. Shed syndecan-2 levels were detected by slot blotting. For tissue culture, colon tissues were divided into proximal, transverse, and distal parts, and incubated in culture media. Results In C57BL/6 mice with DSS-induced colitis, syndecan-2 shedding began to increase after week 12 of chronic inflammation and continued to increase at week 15. The level of shed syndecan-2 correlated with the colocalization of syndecan-2 and MMP-7 in distal colon tissues. The mRNA expression of IL-6 was increased specifically in trans-distal colon tissues from weeks 9 to 15. IL-6 induced syndecan-2 expression and shedding and MMP-7 expression in ex vivo-cultured distal colon tissues and adenoma cell lines derived from the distal colon. IL-6 treatment induced STAT3 phosphorylation and MMP-7 expression in DLD-1 cells. The application of MMP-7 to ex vivo-cultured colon tissues increased the shedding of syndecan-2 to the culture medium. Conclusion Our findings suggest that chronic inflammation induces syndecan-2 shedding via the site-specific colocalization of syndecan-2 with MMP-7 in the distal colon.
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Affiliation(s)
- Heejeong Hong
- Department of Life Sciences, Ewha Womans University, Seoul, South Korea
| | - Hyun-Kuk Song
- Department of Life Sciences, Ewha Womans University, Seoul, South Korea
| | - Bohee Jang
- Department of Life Sciences, Ewha Womans University, Seoul, South Korea
| | - Eunhye Park
- Department of Life Sciences, Ewha Womans University, Seoul, South Korea
| | - Dong Soo Han
- Department of Internal Medicine, Hanyang University College of Medicine, Guri, South Korea
| | - Seong-Eun Kim
- Department of Internal Medicine, Ewha Womans University School of Medicine, Ewha Medical Research Institute, Seoul, South Korea
| | - Eok-Soo Oh
- Department of Life Sciences, Ewha Womans University, Seoul, South Korea
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Heparan Sulfate Proteoglycans Biosynthesis and Post Synthesis Mechanisms Combine Few Enzymes and Few Core Proteins to Generate Extensive Structural and Functional Diversity. Molecules 2020; 25:molecules25184215. [PMID: 32937952 PMCID: PMC7570499 DOI: 10.3390/molecules25184215] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/08/2020] [Accepted: 09/09/2020] [Indexed: 02/06/2023] Open
Abstract
Glycosylation is a common and widespread post-translational modification that affects a large majority of proteins. Of these, a small minority, about 20, are specifically modified by the addition of heparan sulfate, a linear polysaccharide from the glycosaminoglycan family. The resulting molecules, heparan sulfate proteoglycans, nevertheless play a fundamental role in most biological functions by interacting with a myriad of proteins. This large functional repertoire stems from the ubiquitous presence of these molecules within the tissue and a tremendous structural variety of the heparan sulfate chains, generated through both biosynthesis and post synthesis mechanisms. The present review focusses on how proteoglycans are “gagosylated” and acquire structural complexity through the concerted action of Golgi-localized biosynthesis enzymes and extracellular modifying enzymes. It examines, in particular, the possibility that these enzymes form complexes of different modes of organization, leading to the synthesis of various oligosaccharide sequences.
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Kouwenberg M, Rops A, Bakker-van Bebber M, Diepeveen L, Götte M, Hilbrands L, van der Vlag J. Role of syndecan-1 in the interaction between dendritic cells and T cells. PLoS One 2020; 15:e0230835. [PMID: 32701966 PMCID: PMC7377417 DOI: 10.1371/journal.pone.0230835] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 07/01/2020] [Indexed: 01/19/2023] Open
Abstract
Syndecan-1 (Sdc-1) is a heparan sulfate proteoglycan that can bind cytokines and chemokines via its heparan sulfate side chains, and has immunomodulatory properties in experimental models. Sdc-1 expression has been reported on dendritic cells (DC) and T cells. The potential role of Sdc-1 in DC-T cell interaction has not been investigated yet. We postulate that Sdc-1 is involved in DC-T cell interaction and may influence graft survival in an allogeneic transplant model. Sdc-1 expression on bone marrow-derived DC and T cells was analyzed by flow cytometry. Unstimulated and LPS stimulated Sdc-1 deficient DC were evaluated in vitro for phenotype and stimulatory capacity in mixed lymphocyte reaction. Sdc-1 deficient T cells were evaluated for proliferative capacity and differentiation in a mixed lymphocyte reaction and a proliferation assay. Allograft survival was evaluated in a fully MHC mismatched heterotopic heart transplant model, with either Sdc-1 deficient donors or recipients. Sdc-1 was expressed on the cell surface of unstimulated and LPS matured DC. Sdc-1 deficiency had no effect on expression of co-stimulatory molecules, cytokine production or T cell stimulatory capacity as compared to WT DC. Sdc-1 expression was not detectable on WT T cells, although intracellular Sdc-1 expression could be demonstrated after ConA activation. Sdc-1 deficient T cells showed reduced proliferation upon DC or ConA stimulation and reduced IL-17 production upon ConA stimulation, compared to WT T cells. Sdc-1 deficiency of either allograft or recipient did not prolong allograft survival. In conclusion, Sdc-1 is expressed on the cell surface of DC, where its absence does not affect DC phenotype or T cell stimulatory capacity. Sdc-1 is intracellularly expressed in ConA activated T cells. Sdc-1 deficiency in T cells results in a reduced proliferative response in vitro, as induced by DC and ConA. Sdc-1 deficiency in donor or recipient does not affect allograft survival.
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Affiliation(s)
- M. Kouwenberg
- Department of Nephrology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - A. Rops
- Department of Nephrology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - M. Bakker-van Bebber
- Department of Nephrology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - L. Diepeveen
- Department of Nephrology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - M. Götte
- Department of Gynecology and Obstetrics, University of Münster, Münster, Germany
| | - L. Hilbrands
- Department of Nephrology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - J. van der Vlag
- Department of Nephrology, Radboud University Medical Center, Nijmegen, The Netherlands
- * E-mail:
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Hatano S, Watanabe H. Regulation of Macrophage and Dendritic Cell Function by Chondroitin Sulfate in Innate to Antigen-Specific Adaptive Immunity. Front Immunol 2020; 11:232. [PMID: 32194548 PMCID: PMC7063991 DOI: 10.3389/fimmu.2020.00232] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 01/28/2020] [Indexed: 12/11/2022] Open
Abstract
Chondroitin sulfate (CS), a type of glycosaminoglycan (GAG), is a linear acidic polysaccharide comprised of repeating disaccharides, modified with sulfate groups at various positions. Except for hyaluronan (HA), GAGs are covalently bound to core proteins, forming proteoglycans (PGs). With highly negative charges, GAGs interact with a variety of physiologically active molecules, including cytokines, chemokines, and growth factors, and control cell behavior during development and in the progression of diseases, including cancer, infections, and inflammation. Heparan sulfate (HS), another type of GAG, and HA are well reported as regulators for leukocyte migration at sites of inflammation. There have been many reports on the regulation of immune cell function by HS and HA; however, regulation of immune cells by CS has not yet been fully understood. This article focuses on the regulatory function of CS in antigen-presenting cells, including macrophages and dendritic cells, and refers to CSPGs, such as versican and biglycan, and the cell surface proteoglycan, syndecan.
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Affiliation(s)
- Sonoko Hatano
- Institute for Molecular Science of Medicine, Aichi Medical University, Nagakute, Japan
| | - Hideto Watanabe
- Institute for Molecular Science of Medicine, Aichi Medical University, Nagakute, Japan
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Liyanage DS, Omeka WKM, Tharuka MDN, Jung S, Lee S, Lee J. Molecular insights and immune responses of big belly seahorse syndecan-2 (CD362): Involvement of ectodomain in regulating cell survival, proliferation, and wound healing. FISH & SHELLFISH IMMUNOLOGY 2020; 98:457-465. [PMID: 31982583 DOI: 10.1016/j.fsi.2020.01.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 01/21/2020] [Accepted: 01/23/2020] [Indexed: 06/10/2023]
Abstract
Syndecan-2, also known as CD362, is a transmembrane heparan sulfate proteoglycan which regulates cell growth, proliferation, cell adhesion, wound healing, and recruits immune cells. In the present study, we performed bioinformatics, spatial and temporal expression analyses of Hippocampus abdominalis syndecan-2 (HaSDC-2). Additionally, functional assays were conducted. HaSDC-2 has five major domains; an extracellular heparan sulfate attachment domain, a co-receptor binding domain, a transmembrane domain, two conserved domains (C1 domain, C2 domain), and a variable (V) domain. The ectodomain contained a signal peptide and GAG attachment sites. In-silico analysis revealed that HaSDC-2 contained a 798 bp long ORF and protein sequence of 265 amino acid residues. Further analysis of the amino acid sequence predicted a 28.9 kDa molecular weight and a 4.13 theoretical isoelectric point. The spatial expression of HaSDC-2 was ubiquitous in all tested tissues. HaSDC-2 expression in the liver was upregulated 24 h post-injection in response to all stimuli. Further, HaSDC-2 expression in blood cells was upregulated at 12 and 72 h post-injection in response to all the stimuli. HaSDC-2 + pcDNA™3.1(+) transfected cells exhibited significant survival in response to cell stressors such as H2O2 and HED. The ectodomain of recombinant HaSDC-2 treated cells showed significant cell proliferation in a concentration-dependent manner. The scratch wound healing assay showed significant Δ gap closures with increasing concentrations of HaSDC-2. Collectively, these results indicated that syndecan-2 was involved in regulating immune responses and cell stress conditions.
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Affiliation(s)
- D S Liyanage
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea
| | - W K M Omeka
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea
| | - M D Neranjan Tharuka
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju Self-Governing Province, 63333, Republic of Korea
| | - Sumi Jung
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju Self-Governing Province, 63333, Republic of Korea
| | - Sukkyoung Lee
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju Self-Governing Province, 63333, Republic of Korea
| | - Jehee Lee
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju Self-Governing Province, 63333, Republic of Korea.
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Abstract
Syndecans are transmembrane proteoglycans with heparan and chondroitin sulfate chains attached to their extracellular domain. Like many proteoglycans, they interact with a large number of ligands, such as growth factors, adhesion receptors, soluble small molecules, proteinases, and other extracellular matrix proteins to initiate downstream signaling pathways. Syndecans play a major role in inflammation, mainly by regulating leukocyte extravasation and cytokine function. At the same time, syndecans can undergo cytokine mediated changes in their expression levels during inflammation. The function of syndecans during inflammation appears to depend on the stage of inflammation, sulfation of heparan/chondroitin sulfate chains, the rate of ectodomain shedding and the solubility of the ectodomains. From the current literature, it is clear that syndecans are not only involved in the initial recruitment of pro-inflammatory molecules but also in establishing a balanced progression of inflammation. This review will summarize how cell surface and soluble syndecans regulate multiple aspects of inflammation.
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Affiliation(s)
- Sandeep Gopal
- Development and Stem Cells Program, Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, VIC, Australia
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14
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The Challenge of Modulating Heparan Sulfate Turnover by Multitarget Heparin Derivatives. Molecules 2020; 25:molecules25020390. [PMID: 31963505 PMCID: PMC7024324 DOI: 10.3390/molecules25020390] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/12/2020] [Accepted: 01/14/2020] [Indexed: 12/12/2022] Open
Abstract
This review comes as a part of the special issue "Emerging frontiers in GAGs and mimetics". Our interest is in the manipulation of heparan sulfate (HS) turnover by employing HS mimetics/heparin derivatives that exert pleiotropic effects and are interesting for interfering at multiple levels with pathways in which HS is implicated. Due to the important role of heparanase in HS post-biosynthetic modification and catabolism, we focus on the possibility to target heparanase, at both extracellular and intracellular levels, a strategy that can be applied to many conditions, from inflammation to cancer and neurodegeneration.
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Duplancic R, Roguljic M, Puhar I, Vecek N, Dragun R, Vukojevic K, Saraga-Babic M, Kero D. Syndecans and Enzymes for Heparan Sulfate Biosynthesis and Modification Differentially Correlate With Presence of Inflammatory Infiltrate in Periodontitis. Front Physiol 2019; 10:1248. [PMID: 31611818 PMCID: PMC6773826 DOI: 10.3389/fphys.2019.01248] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 09/12/2019] [Indexed: 01/20/2023] Open
Abstract
Periodontitis is a common degenerative disease initiated by the bacteria in subgingival biofilm. The exposure to bacterial biofilm triggers host inflammatory response whose dysregulation is ultimately responsible for the destruction of hard and soft periodontal tissues resulting in tooth loss. To date, significant effort has been invested in the research of the involvement of host cells and inflammatory mediators in regulation of inflammatory response in periodontitis. Syndecans (Sdcs) belong to a four-member family of heparan sulfate proteoglycans (HSPGs). Sdcs are compound molecules comprised of the core protein to which several heparan sulfate (HS) glycosaminoglycan (GAG) chains are attached. The role of Sdcs in pathogenesis of periodontitis is poorly investigated despite the numerous reports from experimental studies about the critical involvement of these factors in modulation of various aspects of inflammatory response, such as the formation of inflammatory mediators gradients, leukocyte recruitment and extracellular matrix remodeling in resolution of inflammation. Most of these functions of Sdcs are HS-related and, thus, dependent upon the structure of HS. This, in turn, is determined by the combinatorial action of enzymes for biosynthesis and modification of HS such as exostosis (EXTs), sulfotransferases (NDSTs), and heparanase 1 (HPSE1). The data presented in this study clearly indicate that some Sdcs display different expression profiles in healthy and diseased periodontal tissue. Additionally, the differences in expression profiles of HS GAG biosynthesis and modification enzymes (EXTs, NDSTs, and HPSE1) in healthy and diseased periodontal tissue imply that changes in HS GAG content and structure might also take place during periodontitis. Most notably, expression profiles of Sdcs, EXTs, NDSTs, and HPSE1 differentially correlate with the presence of inflammatory infiltrate in healthy and diseased periodontal tissue, which might imply that these factors could also be involved in modulation of inflammatory response in periodontitis.
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Affiliation(s)
- Roko Duplancic
- Study Programme of Dental Medicine, School of Medicine, University of Split, Split, Croatia
| | - Marija Roguljic
- Department of Oral Pathology and Periodontology, Study Programme of Dental Medicine, School of Medicine, University of Split, Split, Croatia
| | - Ivan Puhar
- Department of Periodontology, School of Dental Medicine, University of Zagreb, Zagreb, Croatia
| | - Nika Vecek
- Study Programme of Dental Medicine, School of Medicine, University of Split, Split, Croatia
| | - Ruzica Dragun
- Study Programme of Dental Medicine, School of Medicine, University of Split, Split, Croatia
| | - Katarina Vukojevic
- Department of Anatomy, Histology and Embryology, School of Medicine, University of Split, Split, Croatia.,Laboratory for Early Human Development, School of Medicine, University of Split, Split, Croatia
| | - Mirna Saraga-Babic
- Department of Anatomy, Histology and Embryology, School of Medicine, University of Split, Split, Croatia.,Laboratory for Early Human Development, School of Medicine, University of Split, Split, Croatia
| | - Darko Kero
- Study Programme of Dental Medicine, School of Medicine, University of Split, Split, Croatia.,Laboratory for Early Human Development, School of Medicine, University of Split, Split, Croatia
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16
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Li D, Wu Y, Guo S, Qin J, Feng M, An Y, Zhang J, Li Y, Xiong S, Zhou H, Zeng Q, Chen L, Wen F. Circulating syndecan-1 as a novel biomarker relates to lung function, systemic inflammation, and exacerbation in COPD. Int J Chron Obstruct Pulmon Dis 2019; 14:1933-1941. [PMID: 31695352 PMCID: PMC6718058 DOI: 10.2147/copd.s207855] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 07/12/2019] [Indexed: 02/05/2023] Open
Abstract
Introduction Patients with COPD often show increased systemic inflammation which is associated with lower functional status, greater exacerbation risk, and worse clinical outcomes. Syndecans (SDCs), a family of transmembrane heparan sulfate proteoglycans (HSPGs), have been found to involve in inflammatory processes in many chronic inflammatory diseases. The aim of this preliminary clinical study was to investigate the possible association between two SDCs, SDC-1 and SDC-4, with lung function, systemic inflammation, and risk of exacerbations in COPD patients. Method Serum SDC-1 and SDC-4 levels were measured in 101 COPD patients and 57 health controls. Correlations between SDCs and other parameters were analyzed using Spearsman’s rho. Receiver operating curve (ROC) analysis was used to evaluate the threshold value in differentiating disease status. Results Although both serum SDC-1 and SDC-4 showed a downward trend in COPD patients, only SDC-1 levels were correlated positively with the ratio of FEV1/FVC and parameters of small airway obstruction. Besides, SDC-1 but not SDC-4, was negatively correlated with C-reactive protein (CRP) in COPD patients and downregulated in frequent exacerbators (FEs) of COPD. Using a cutoff value of 2.08 ng/mL, the sensitivity and specificity of SDC-1 to differentiate FE were 44% and 93.4%, respectively. Conclusion In conclusion, circulating SDC-1 may be a novel inflammatory biomarker associated with lung function and systemic inflammation in patients with COPD, which could also be useful to identify the risk of COPD exacerbation. Further studies should be performed to clarify the influences of SDC-1 on the pathogenesis and outcomes of COPD.
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Affiliation(s)
- Diandian Li
- Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University and Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China, Chengdu 610041, People's Republic of China
| | - Yanqiu Wu
- Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University and Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China, Chengdu 610041, People's Republic of China
| | - Shujin Guo
- Department of Internal Medicine, Sichuan Provincial People's Hospital and Sichuan Academy of Medical Science, Chengdu 610072, People's Republic of China
| | - Jiangyue Qin
- Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University and Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China, Chengdu 610041, People's Republic of China
| | - Mei Feng
- Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University and Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China, Chengdu 610041, People's Republic of China
| | - Yunfei An
- Department of Laboratorial Medicine, West China Hospital of Sichuan University, Chengdu 610041, People's Republic of China
| | - Junlong Zhang
- Department of Laboratorial Medicine, West China Hospital of Sichuan University, Chengdu 610041, People's Republic of China
| | - Yanping Li
- Department of Respiratory and Critical Care Medicine, The 3rd People's Hospital of Chengdu, Chengdu 610031, People's Republic of China
| | - Shuguang Xiong
- Department of Respiratory and Critical Care Medicine, 416 Hospital, Chengdu 610051, People's Republic of China
| | - Hui Zhou
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Chengdu University, Chengdu 610081, People's Republic of China
| | - Qianglin Zeng
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Chengdu University, Chengdu 610081, People's Republic of China
| | - Lei Chen
- Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University and Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China, Chengdu 610041, People's Republic of China
| | - Fuqiang Wen
- Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University and Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China, Chengdu 610041, People's Republic of China
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Eustace AD, McNaughton EF, King S, Kehoe O, Kungl A, Mattey D, Nobbs AH, Williams N, Middleton J. Soluble syndecan-3 binds chemokines, reduces leukocyte migration in vitro and ameliorates disease severity in models of rheumatoid arthritis. Arthritis Res Ther 2019; 21:172. [PMID: 31300004 PMCID: PMC6625118 DOI: 10.1186/s13075-019-1939-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 06/10/2019] [Indexed: 01/04/2023] Open
Abstract
Background Syndecans are heparan sulfate proteoglycans that occur in membrane-bound or soluble forms. Syndecan-3, the least well-characterised of the syndecan family, is highly expressed on synovial endothelial cells in rheumatoid arthritis patients. Here, it binds pro-inflammatory chemokines with evidence for a role in chemokine presentation and leukocyte trafficking into the joint, promoting the inflammatory response. In this study, we explored the role of soluble syndecan-3 as a binder of chemokines and as an anti-inflammatory and therapeutic molecule. Methods A human monocytic cell line and CD14+ PBMCs were utilised in both Boyden chamber and trans-endothelial migration assays. Soluble syndecan-3 was tested in antigen-induced and collagen-induced in vivo arthritis models in mice. ELISA and isothermal fluorescence titration assays assessed the binding affinities. Syndecan-3 expression was identified by flow cytometry and PCR, and levels of shedding by ELISA. Results Using in vitro and in vivo models, soluble syndecan-3 inhibited leukocyte migration in vitro in response to CCL7 and its administration in murine models of rheumatoid arthritis reduced histological disease severity. Using isothermal fluorescence titration, the binding affinity of soluble syndecan-3 to inflammatory chemokines CCL2, CCL7 and CXCL8 was determined, revealing little difference, with Kds in the low nM range. TNFα increased cell surface expression and shedding of syndecan-3 from cultured human endothelial cells. Furthermore, soluble syndecan-3 occurred naturally in the sera of patients with rheumatoid arthritis and periodontitis, and its levels correlated with syndecan-1. Conclusions This study shows that the addition of soluble syndecan-3 may represent an alternative therapeutic approach in inflammatory disease. Electronic supplementary material The online version of this article (10.1186/s13075-019-1939-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Andrew D Eustace
- Bristol Dental School, University of Bristol, Lower Maudlin Street, BS1 2LY, Bristol, UK
| | - Emily F McNaughton
- Bristol Dental School, University of Bristol, Lower Maudlin Street, BS1 2LY, Bristol, UK
| | - Sophie King
- Bristol Dental School, University of Bristol, Lower Maudlin Street, BS1 2LY, Bristol, UK
| | - Oksana Kehoe
- Leopold Muller Arthritis Research Centre, Medical School, RJAH Orthopaedic Hospital, ISTM, Keele University, Oswestry, UK
| | - Andreas Kungl
- Institute of Pharmaceutical Sciences, Karl-Franzens-University Graz, Humboldtstrasse 46, A-8010, Graz, Austria
| | - Derek Mattey
- Staffordshire Rheumatology Centre, Haywood Hospital, Stoke-on-Trent, UK
| | - Angela H Nobbs
- Bristol Dental School, University of Bristol, Lower Maudlin Street, BS1 2LY, Bristol, UK.
| | - Neil Williams
- School of Cellular and Molecular Medicine, University of Bristol, Biomedical Sciences Building, BS8 1TD, Bristol, UK
| | - Jim Middleton
- Bristol Dental School, University of Bristol, Lower Maudlin Street, BS1 2LY, Bristol, UK
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Saleh ME, Gadalla R, Hassan H, Afifi A, Götte M, El-Shinawi M, Mohamed MM, Ibrahim SA. The immunomodulatory role of tumor Syndecan-1 (CD138) on ex vivo tumor microenvironmental CD4+ T cell polarization in inflammatory and non-inflammatory breast cancer patients. PLoS One 2019; 14:e0217550. [PMID: 31145753 PMCID: PMC6542534 DOI: 10.1371/journal.pone.0217550] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Accepted: 05/14/2019] [Indexed: 12/24/2022] Open
Abstract
Herein, we aimed to identify the immunomodulatory role of tumor Syndecan-1 (CD138) in the polarization of CD4+ T helper (Th) subsets isolated from the tumor microenvironment of inflammatory breast cancer (IBC) and non-IBC patients. Lymphocytes and mononuclear cells isolated from the axillary tributaries of non-IBC and IBC patients during modified radical mastectomy were either stimulated with the secretome as indirect co-culture or directly co-cultured with control and Syndecan-1-silenced SUM-149 IBC cells. In addition, peripheral blood mononuclear cells (PBMCs) of normal subjects were used for the direct co-culture. Employing flow cytometry, we analyzed the expression of the intracellular IFN-γ, IL-4, IL-17, and Foxp3 markers as readout for basal and co-cultured Th1, Th2, Th17, and Treg CD4+ subsets, respectively. Our data revealed that IBC displayed a lower basal frequency of Th1 and Th2 subsets than non-IBC. Syndecan-1-silenced SUM-149 cells significantly upregulated only Treg subset polarization of normal subjects relative to controls. However, Syndecan-1 silencing significantly enhanced the polarization of Th17 and Treg subsets of non-IBC under both direct and indirect conditions and induced only Th1 subset polarization under indirect conditions compared to control. Interestingly, qPCR revealed that there was a negative correlation between Syndecan-1 and each of IL-4, IL-17, and Foxp3 mRNA expression in carcinoma tissues of IBC and that the correlation was reversed in non-IBC. Mechanistically, Syndecan-1 knockdown in SUM-149 cells promoted Th17 cell expansion via upregulation of IL-23 and the Notch ligand DLL4. Overall, this study indicates a low frequency of the circulating antitumor Th1 subset in IBC and suggests that tumor Syndecan-1 silencing enhances ex vivo polarization of CD4+ Th17 and Treg cells of non-IBC, whereby Th17 polarization is possibly mediated via upregulation of IL-23 and DLL4. These findings suggest the immunoregulatory role of tumor Syndecan-1 expression in Th cell polarization that may have therapeutic implications for breast cancer.
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Affiliation(s)
| | - Ramy Gadalla
- Department of Zoology, Faculty of Science, Cairo University, Giza, Egypt
| | - Hebatallah Hassan
- Department of Zoology, Faculty of Science, Cairo University, Giza, Egypt
| | - Ahmed Afifi
- Department of Zoology, Faculty of Science, Cairo University, Giza, Egypt
| | - Martin Götte
- Department of Gynecology and Obstetrics, Münster University Hospital, Münster, Germany
| | - Mohamed El-Shinawi
- Department of General Surgery, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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19
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Wu F, Peng Z, Park PW, Kozar RA. Loss of Syndecan-1 Abrogates the Pulmonary Protective Phenotype Induced by Plasma After Hemorrhagic Shock. Shock 2018; 48:340-345. [PMID: 28107214 DOI: 10.1097/shk.0000000000000832] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Syndecan-1 (Sdc1) is considered a biomarker of injury to the endothelial glycocalyx following hemorrhagic shock, with shedding of Sdc1 deleterious. Resuscitation with fresh frozen plasma (FFP) has been correlated with restitution of pulmonary Sdc1 and reduction of lung injury, but the precise contribution of Sdc1 to FFPs protection in the lung remains unclear. Human lung endothelial cells were used to assess the time and dose-dependent effect of FFP on Sdc1 expression and the effect of Sdc1 silencing on in vitro endothelial cell permeability and actin stress fiber formation. Wild-type and Sdc1 mice were subjected to hemorrhagic shock followed by resuscitation with lactated Ringers (LR) or FFP and compared with shock alone and shams. Lungs were harvested after 3 h for analysis of permeability, histology, and inflammation and for measurement of syndecan- 2 and 4 expression. In vitro, FFP enhanced pulmonary endothelial Sdc1 expression in time- and dose-dependent manners and loss of Sdc1 in pulmonary endothelial cells worsened permeability and stress fiber formation by FFP. Loss of Sdc1 in vivo led to equivalency between LR and FFP in restoring pulmonary injury, inflammation, and permeability after shock. Lastly, Sdc1 mice demonstrated a significant increase in pulmonary syndecan 4 expression after hemorrhagic shock and FFP-based resuscitation. Taken together, our findings support a key role for Sdc1 in modulating pulmonary protection by FFP after hemorrhagic shock. Our results also suggest that other members of the syndecan family may at least be contributing to FFP's effects on the endothelium, an area that warrants further investigation.
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Affiliation(s)
- Feng Wu
- *Shock Trauma Center, University of Maryland School of Medicine, Baltimore, Maryland †Department of Anesthesia, University of Texas Health Science Center at Houston, Houston, Texas ‡Division of Respiratory Diseases, Children's Hospital, Harvard Medical School, Boston, Massachusetts
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20
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Recent Advances in ADAM17 Research: A Promising Target for Cancer and Inflammation. Mediators Inflamm 2017; 2017:9673537. [PMID: 29230082 PMCID: PMC5688260 DOI: 10.1155/2017/9673537] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 08/15/2017] [Accepted: 09/11/2017] [Indexed: 02/06/2023] Open
Abstract
Since its discovery, ADAM17, also known as TNFα converting enzyme or TACE, is now known to process over 80 different substrates. Many of these substrates are mediators of cancer and inflammation. The field of ADAM metalloproteinases is at a crossroad with many of the new potential therapeutic agents for ADAM17 advancing into the clinic. Researchers have now developed potential drugs for ADAM17 that are selective and do not have the side effects which were seen in earlier chemical entities that targeted this enzyme. ADAM17 inhibitors have broad therapeutic potential, with properties ranging from tumor immunosurveillance and overcoming drug and radiation resistance in cancer, as treatments for cardiac hypertrophy and inflammatory conditions such as inflammatory bowel disease and rheumatoid arthritis. This review focuses on substrates and inhibitors identified more recently for ADAM17 and their role in cancer and inflammation.
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21
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Abstract
Syndecans comprise a major family of cell surface heparan sulfate proteoglycans (HSPGs). Syndecans are composed of sulfated glycosaminoglycans (GAGs), heparan sulfate (HS) or both HS and chondroitin sulfate (CS), attached covalently to core proteins. Syndecans regulate many cellular processes, such as adhesion, proliferation, and migration. Syndecans bind and regulate molecules primarily through their HS chains, but do not bind to all HS/heparin-binding molecules. Furthermore, mice ablated for the syndecan-1 or -4 gene do not show major developmental abnormalities, but they do show striking pathological phenotypes when challenged with infectious or inflammatory stimuli and conditions, suggesting that certain functions of syndecans are specific and cannot be compensated for by other syndecans or other HSPGs. These observations underscore the physiological importance of syndecans and indicate a need to study the activities of isolated native syndecans to define their molecular and cellular functions, and to establish their biological significance. Here we describe methods to isolate syndecans and several assays to analyze their functions.
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Affiliation(s)
- Pyong Woo Park
- Boston Children's Hospital, Harvard Medical School, Boston, MA, United States.
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22
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Qin Q, Xu G, Qi W, Guo M, Wang Z, Xu W, Qiao Z, Gu Y, Niu J. Evaluation of the C-domain of heparanase during AGE-induced macrophage inflammatory response. Exp Ther Med 2017; 14:1017-1022. [PMID: 28810553 PMCID: PMC5526102 DOI: 10.3892/etm.2017.4609] [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: 07/15/2016] [Accepted: 04/18/2017] [Indexed: 11/05/2022] Open
Abstract
Diabetic vasculopathy is intensified by macrophage inflammation caused by advanced glycation end products (AGEs). Heparanase (HPA) is a unique endoglycosidase, which cleaves heparan sulfate proteoglycans (HSPGs) including syndecan-1 (Syn-1) to further stimulate macrophage cell migration and inflammation. The present study was planned to evaluated the role of C-domain (if any) of HPA in AGE inflammatory response in macrophages. Cell viability was assessed using MTT assay, migration assay, ELISA for tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β) levels, mRNA expression by RT-PCR and heparan degrading enzyme assay for HPA activity. In the present study, we found that pretreatment with anti-HPA antibody, which recognizes the C-domain of HPA inhibited macrophage migration, secretion of IL-1β and TNF-α as well as decreased HPA enzymatic activity and increased Syn-1 protein expression in AGE-induced macrophages. Compared with anti-HPA antibody pretreatment, co-pretreatment with anti-HPA plus Syn-1 antibodies promoted macrophage migration, and secretion of IL-1β and TNF-α significantly in AGE-induced macrophages. In addition, pretreatment with anti-HPA or anti-HPA plus Syn-1 antibodies did not markedly change the mRNA levels of IL-1β and TNF-α concentration AGE-treated macrophages. The results showed that C-domain of HPA mediates AGE-induced macrophage migration and inflammatory cytokine release via Syn-1 protein expression. Furthermore, C-domain of HPA may have a key role in diabetic vascular complication-associated inflammatory response.
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Affiliation(s)
- Qiaojing Qin
- Department of Nephrology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, P.R. China
| | - Guang Xu
- Department of Nephrology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, P.R. China
| | - Weiwei Qi
- Department of Nephrology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, P.R. China
| | - Mei Guo
- Department of Nephrology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, P.R. China
| | - Zhaoxia Wang
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
| | - Wangjie Xu
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
| | - Zhongdong Qiao
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
| | - Yong Gu
- Department of Nephrology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, P.R. China
| | - Jianying Niu
- Department of Nephrology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, P.R. China
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23
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CD138 mediates selection of mature plasma cells by regulating their survival. Blood 2017; 129:2749-2759. [PMID: 28381397 DOI: 10.1182/blood-2017-01-761643] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 03/29/2017] [Indexed: 12/13/2022] Open
Abstract
Antibody secreting cells (ASCs) are critical effector cells and long-lived sentinels for immune memory. ASCs are highly dependent on exogenous soluble factors such as interleukin-6 (IL-6) and APRIL, to prevent their cell death. We have found that the canonical surface marker of ASCs, CD138 (syndecan-1), which is upregulated during ASC maturation, is required in a cell-intrinsic manner to mount an effective long-term humoral immune response following immunization. Surface expression of CD138 increased heparan sulfate levels on ASCs, which are known to bind pro-survival cytokines, leading to increased survival in a cell-intrinsic manner in vivo. In IL-6 and APRIL-deficient hosts, ASCs underwent extensive apoptosis independently of CD138 expression. We propose a model in which CD138 expression on fully mature ASCs provides a selective survival advantage over less mature, newly minted ASCs, by enhancing pro-survival cytokine signaling.
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24
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Binder Gallimidi A, Nussbaum G, Hermano E, Weizman B, Meirovitz A, Vlodavsky I, Götte M, Elkin M. Syndecan-1 deficiency promotes tumor growth in a murine model of colitis-induced colon carcinoma. PLoS One 2017; 12:e0174343. [PMID: 28350804 PMCID: PMC5369774 DOI: 10.1371/journal.pone.0174343] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 03/07/2017] [Indexed: 12/27/2022] Open
Abstract
Syndecan-1 (Sdc1) is an important member of the cell surface heparan sulfate proteoglycan family, highly expressed by epithelial cells in adult organisms. Sdc1 is involved in the regulation of cell migration, cell-cell and cell-matrix interactions, growth-factor, chemokine and integrin activity, and implicated in inflammatory responses and tumorigenesis. Gastrointestinal tract represents an important anatomic site where loss of Sdc1 expression was reported both in inflammation and malignancy. However, the biological significance of Sdc1 in chronic colitis-associated tumorigenesis has not been elucidated. To the best of our knowledge, this study is the first to test the effects of Sdc1 loss on colorectal tumor development in inflammation-driven colon tumorigenesis. Utilizing a mouse model of colitis-related colon carcinoma induced by the carcinogen azoxymethane (AOM), followed by the inflammatory agent dextran sodium sulfate (DSS), we found that Sdc1 deficiency results in increased susceptibility to colitis-associated tumorigenesis. Importantly, colitis-associated tumors developed in Sdc1-defficient mice were characterized by increased local production of IL-6, activation of STAT3, as well as induction of several STAT3 target genes that act as important effectors of colonic tumorigenesis. Altogether, our results highlight a previously unknown effect of Sdc1 loss in progression of inflammation-associated cancer and suggest that decreased levels of Sdc1 may serve as an indicator of colon carcinoma progression in the setting of chronic inflammation.
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Affiliation(s)
- Adi Binder Gallimidi
- Sharett Oncology Institute, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Gabriel Nussbaum
- Institute of Dental Sciences, Hebrew University-Hadassah Faculty of Dental Medicine, Jerusalem, Israel
| | - Esther Hermano
- Sharett Oncology Institute, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Barak Weizman
- Sharett Oncology Institute, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Amichay Meirovitz
- Sharett Oncology Institute, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Israel Vlodavsky
- Cancer and Vascular Biology Research Center, The Rappaport Faculty of Medicine, Technion, Haifa, Israel
| | - Martin Götte
- Department of Gynecology and Obstetrics, Muenster University, Medical Center, Muenster Germany
| | - Michael Elkin
- Sharett Oncology Institute, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
- * E-mail:
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Fujikura D, Ikesue M, Endo T, Chiba S, Higashi H, Uede T. Death receptor 6 contributes to autoimmunity in lupus-prone mice. Nat Commun 2017; 8:13957. [PMID: 28045014 PMCID: PMC5216082 DOI: 10.1038/ncomms13957] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Accepted: 11/15/2016] [Indexed: 01/20/2023] Open
Abstract
Expansion of autoreactive follicular helper T (Tfh) cells is tightly restricted to prevent induction of autoantibody-dependent immunological diseases, such as systemic lupus erythematosus (SLE). Here we show expression of an orphan immune regulator, death receptor 6 (DR6/TNFRSF21), on a population of Tfh cells that are highly expanded in lupus-like disease progression in mice. Genome-wide screening reveals an interaction between syndecan-1 and DR6 resulting in immunosuppressive functions. Importantly, syndecan-1 is expressed specifically on autoreactive germinal centre (GC) B cells that are critical for maintenance of Tfh cells. Syndecan-1 expression level on GC B cells is associated with Tfh cell expansion and disease progression in lupus-prone mouse strains. In addition, Tfh cell suppression by DR6-specific monoclonal antibody delays disease progression in lupus-prone mice. These findings suggest that the DR6/syndecan-1 axis regulates aberrant GC reactions and could be a therapeutic target for autoimmune diseases such as SLE. Germinal centre (GC) reactions are driven by T follicular helper (Tfh) cells and their dysregulation can cause autoimmune disease. Here the authors show that the orphan receptor DR6 is a Tfh cell marker that binds syndecan-1 on GC B cells driving autoimmunity in lupus-prone mice.
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Affiliation(s)
- Daisuke Fujikura
- Division of Infection and Immunity, Hokkaido University Research Center for Zoonosis Control, North-20, West-10, Kita-ku, Sapporo 001-0020, Japan.,Division of Molecular Immunology, Hokkaido University Institute for Genetic Medicine, North-15, West-7, Kita-ku, Sapporo 060-0815, Japan.,Division of Bioresources, Hokkaido University Research Center for Zoonosis Control, North-20, West-10, Kita-ku, Sapporo 001-0020, Japan
| | - Masahiro Ikesue
- Division of Molecular Immunology, Hokkaido University Institute for Genetic Medicine, North-15, West-7, Kita-ku, Sapporo 060-0815, Japan
| | - Tsutomu Endo
- Division of Molecular Immunology, Hokkaido University Institute for Genetic Medicine, North-15, West-7, Kita-ku, Sapporo 060-0815, Japan
| | - Satoko Chiba
- Division of Infection and Immunity, Hokkaido University Research Center for Zoonosis Control, North-20, West-10, Kita-ku, Sapporo 001-0020, Japan.,Division of Bioresources, Hokkaido University Research Center for Zoonosis Control, North-20, West-10, Kita-ku, Sapporo 001-0020, Japan
| | - Hideaki Higashi
- Division of Infection and Immunity, Hokkaido University Research Center for Zoonosis Control, North-20, West-10, Kita-ku, Sapporo 001-0020, Japan
| | - Toshimitsu Uede
- Division of Molecular Immunology, Hokkaido University Institute for Genetic Medicine, North-15, West-7, Kita-ku, Sapporo 060-0815, Japan
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Suppressing Syndecan-1 Shedding Ameliorates Intestinal Epithelial Inflammation through Inhibiting NF-κB Pathway and TNF-α. Gastroenterol Res Pract 2016; 2016:6421351. [PMID: 27579035 PMCID: PMC4992761 DOI: 10.1155/2016/6421351] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Accepted: 07/10/2016] [Indexed: 11/17/2022] Open
Abstract
Syndecan-1 (SDC1), with a long variable ectodomain carrying heparan sulfate chains, participates in many steps of inflammatory responses. But reports about the efforts of SDC1's unshedding ectodomain on intestinal epithelial inflammation and the precise underlying mechanism are limited. In our study, unshedding SDC1 from intestinal epithelial cell models was established by transfecting with unshedding SDC1 plasmid into the cell, respectively. And the role of unshedding SDC1 in intestinal inflammation was further investigated. We found that components of NF-κB pathway, including P65 and IκBα, and secretion of TNF-α were upregulated upon LPS stimulation in intestinal epithelial cells. SDC1, especially through its unshed ectodomain, significantly lessened the upregulation extent. It also functioned in inhibiting migration of neutrophils by downregulating secretion of CXCL-1. Taken together, we conclude that suppressing SDC1 shedding from intestinal epithelial cells relieves severity of intestinal inflammation by inactivating NF-κB pathway and downregulating TNF-α expression. These results indicate that the ectodomain of SDC1 might be the optional therapy for intestinal inflammation.
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Brauer R, Ge L, Schlesinger SY, Birkland TP, Huang Y, Parimon T, Lee V, McKinney BL, McGuire JK, Parks WC, Chen P. Syndecan-1 Attenuates Lung Injury during Influenza Infection by Potentiating c-Met Signaling to Suppress Epithelial Apoptosis. Am J Respir Crit Care Med 2016; 194:333-44. [PMID: 26959387 PMCID: PMC4970595 DOI: 10.1164/rccm.201509-1878oc] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 03/09/2016] [Indexed: 12/16/2022] Open
Abstract
RATIONALE Syndecan-1 is a cell surface heparan sulfate proteoglycan primarily expressed in the lung epithelium. Because the influenza virus is tropic to the airway epithelium, we investigated the role of syndecan-1 in influenza infection. OBJECTIVES To determine the mechanism by which syndecan-1 regulates the lung mucosal response to influenza infection. METHODS Wild-type (WT) and Sdc1(-/-) mice were infected with a H1N1 virus (PR8) as an experimental model of influenza infection. Human and murine airway epithelial cell cultures were also infected with PR8 to study the mechanism by which syndecan-1 regulates the inflammatory response. MEASUREMENT AND MAIN RESULTS We found worsened outcomes and lung injury in Sdc1(-/-) mice compared with WT mice after influenza infection. Our data demonstrated that syndecan-1 suppresses bronchial epithelial apoptosis during influenza infection to limit widespread lung inflammation. Furthermore, we determined that syndecan-1 attenuated apoptosis by crosstalking with c-Met to potentiate its cytoprotective signals in airway epithelial cells during influenza infection. CONCLUSIONS Our work shows that cell-associated syndecan-1 has an important role in regulating lung injury. Our findings demonstrate a novel mechanism in which cell membrane-associated syndecan-1 regulates the innate immune response to influenza infection by facilitating cytoprotective signals through c-Met signaling to limit bronchial epithelial apoptosis, thereby attenuating lung injury and inflammation.
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Affiliation(s)
- Rena Brauer
- Women’s Guild Lung Institute, Cedars-Sinai Medical Center; Los Angeles, California; and
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - Lingyin Ge
- Women’s Guild Lung Institute, Cedars-Sinai Medical Center; Los Angeles, California; and
| | | | - Timothy P. Birkland
- Women’s Guild Lung Institute, Cedars-Sinai Medical Center; Los Angeles, California; and
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - Ying Huang
- Women’s Guild Lung Institute, Cedars-Sinai Medical Center; Los Angeles, California; and
| | - Tanyalak Parimon
- Women’s Guild Lung Institute, Cedars-Sinai Medical Center; Los Angeles, California; and
| | - Vivian Lee
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | | | - John K. McGuire
- Department of Pediatrics, University of Washington, Seattle, Washington
| | - William C. Parks
- Women’s Guild Lung Institute, Cedars-Sinai Medical Center; Los Angeles, California; and
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - Peter Chen
- Women’s Guild Lung Institute, Cedars-Sinai Medical Center; Los Angeles, California; and
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
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Abstract
Glycosaminoglycans (GAGs) are complex linear polysaccharides expressed in intracellular compartments, at the cell surface, and in the extracellular environment where they interact with various molecules to regulate many cellular processes implicated in health and disease. Subversion of GAGs is a pathogenic strategy shared by a wide variety of microbial pathogens, including viruses, bacteria, parasites, and fungi. Pathogens use GAGs at virtually every major portals of entry to promote their attachment and invasion of host cells, movement from one cell to another, and to protect themselves from immune attack. Pathogens co-opt fundamental activities of GAGs to accomplish these tasks. This ingenious strategy to subvert essential activities of GAGs likely prevented host organisms from deleting or inactivating these mechanisms during their evolution. The goal of this review is to provide a mechanistic overview of our current understanding of how microbes subvert GAGs at major steps of pathogenesis, using select GAG-pathogen interactions as representative examples.
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Affiliation(s)
- Rafael S Aquino
- Division of Respiratory Diseases and 2Division of Newborn Medicine, Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Pyong Woo Park
- Division of Respiratory Diseases Children's Hospital, Harvard Medical School, Boston, MA 02115, USA and Division of Newborn Medicine, Children's Hospital, Harvard Medical School, Boston, MA 02115, USA,
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Critical role for syndecan-4 in dendritic cell migration during development of allergic airway inflammation. Nat Commun 2015; 6:7554. [PMID: 26165408 DOI: 10.1038/ncomms8554] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 05/20/2015] [Indexed: 11/08/2022] Open
Abstract
Syndecan-4 (SDC4), expressed on dendritic cells (DCs) and activated T cells, plays a crucial role in DC motility and has been shown as a potential target for activated T-cell-driven diseases. In the present study, we investigate the role of SDC4 in the development of T-helper 2 cell-mediated allergic asthma. Using SDC4-deficient mice or an anti-SDC4 antibody we show that the absence or blocking of SDC4 signalling in ovalbumin-sensitized mice results in a reduced asthma phenotype compared with control animals. Most importantly, even established asthma is significantly decreased using the anti-SDC4 antibody. The disturbed SDC4 signalling leads to an impaired motility and directional migration of antigen-presenting DCs and therefore, to a modified sensitization leading to diminished airway inflammation. Our results demonstrate that SDC4 plays an important role in asthma induction and indicate SDC4 as possible target for therapeutic intervention in this disease.
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Morris A, Wang B, Waern I, Venkatasamy R, Page C, Schmidt EP, Wernersson S, Li JP, Spina D. The role of heparanase in pulmonary cell recruitment in response to an allergic but not non-allergic stimulus. PLoS One 2015; 10:e0127032. [PMID: 26039697 PMCID: PMC4454641 DOI: 10.1371/journal.pone.0127032] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 04/11/2015] [Indexed: 01/08/2023] Open
Abstract
Heparanase is an endo-β-glucuronidase that specifically cleaves heparan sulfate proteoglycans in the extracellular matrix. Expression of this enzyme is increased in several pathological conditions including inflammation. We have investigated the role of heparanase in pulmonary inflammation in the context of allergic and non-allergic pulmonary cell recruitment using heparanase knockout (Hpa-/-) mice as a model. Following local delivery of LPS or zymosan, no significant difference was found in the recruitment of neutrophils to the lung between Hpa-/- and wild type (WT) control. Similarly neutrophil recruitment was not inhibited in WT mice treated with a heparanase inhibitor. However, in allergic inflammatory models, Hpa-/- mice displayed a significantly reduced eosinophil (but not neutrophil) recruitment to the airways and this was also associated with a reduction in allergen-induced bronchial hyperresponsiveness, indicating that heparanase expression is associated with allergic reactions. This was further demonstrated by pharmacological treatment with a heparanase inhibitor in the WT allergic mice. Examination of lung specimens from patients with different severity of chronic obstructive pulmonary disease (COPD) found increased heparanase expression. Thus, it is established that heparanase contributes to allergen-induced eosinophil recruitment to the lung and could provide a novel therapeutic target for the development of anti-inflammatory drugs for the treatment of asthma and other allergic diseases.
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Affiliation(s)
- Abigail Morris
- Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, King’s College London, London, United Kingdom
| | - Bo Wang
- Department of Medical Biochemistry and Microbiology, Uppsala University, Box 582, Uppsala, Sweden
| | - Ida Waern
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Box 7011, Uppsala, Sweden
| | - Radhakrishnan Venkatasamy
- Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, King’s College London, London, United Kingdom
| | - Clive Page
- Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, King’s College London, London, United Kingdom
| | - Eric P. Schmidt
- Program in Translational Lung Research, University of Colorado School of Medicine, Aurora, CO, United States of America
| | - Sara Wernersson
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Box 7011, Uppsala, Sweden
| | - Jin-Ping Li
- Department of Medical Biochemistry and Microbiology, Uppsala University, Box 582, Uppsala, Sweden
| | - Domenico Spina
- Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, King’s College London, London, United Kingdom
- * E-mail:
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31
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Nikaido T, Tanino Y, Wang X, Sato S, Misa K, Fukuhara N, Sato Y, Fukuhara A, Uematsu M, Suzuki Y, Kojima T, Tanino M, Endo Y, Tsuchiya K, Kawamura I, Frevert CW, Munakata M. Serum Syndecan-4 as a Possible Biomarker in Patients With Acute Pneumonia. J Infect Dis 2015; 212:1500-8. [PMID: 25895983 DOI: 10.1093/infdis/jiv234] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 04/10/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Syndecan-4 is a transmembrane heparan sulfate proteoglycan expressed in a variety of cells, and glycosaminoglycan side chains of syndecan-4 bind to several proteins, suggesting several biological functions. However, the role of syndecan-4 in acute bacterial pneumonia has not yet been elucidated. METHODS Serum syndecan-4 levels were measured in patients with acute pneumonia, and the relationships between serum syndecan-4 levels and clinical parameters were analyzed. Next, we treated wild-type and syndecan-4-deficient mice with Streptococcus pneumoniae intranasally and analyzed the phenotype of syndecan-4-deficient mice. RESULTS In the patients with acute pneumonia, serum syndecan-4 levels were significantly higher than in the healthy volunteers and correlated negatively with the pneumonia severity score. In addition, in patients who improved with short-term antibiotic therapy, serum syndecan-4 levels were higher on admission and gradually increased during antibiotic therapy. Furthermore, in syndecan-4-deficient mice, the survival rate was significantly worse, and total neutrophil counts in bronchoalveolar lavage fluid, bacterial counts in blood, and plasma levels of inflammatory cytokines were significantly higher than in wild-type mice. CONCLUSIONS These results suggest that syndecan-4 has an anti-inflammatory function in acute pneumonia and could serve as a useful biomarker in these patients.
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Affiliation(s)
- Takefumi Nikaido
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima
| | - Yoshinori Tanino
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima
| | - Xintao Wang
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima
| | - Suguru Sato
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima
| | - Kenichi Misa
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima
| | - Naoko Fukuhara
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima
| | - Yuki Sato
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima
| | - Atsuro Fukuhara
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima
| | - Manabu Uematsu
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima
| | - Yasuhito Suzuki
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima
| | - Tetsuhito Kojima
- Department of Medical Technology, Nagoya University School of Health Sciences, Nagoya
| | - Mishie Tanino
- Department of Cancer Pathology, Hokkaido University Graduate School of Medicine, Sapporo
| | - Yuichi Endo
- Department of Immunology, Fukushima Medical University School of Medicine, Fukushima
| | - Kohsuke Tsuchiya
- Department of Microbiology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Ikuo Kawamura
- Department of Microbiology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Charles W Frevert
- Division of Pulmonary/Critical Care Medicine, Department of Medicine Comparative Pathology Program, Department of Comparative Medicine Center of Lung Biology, University of Washington School of Medicine, Seattle
| | - Mitsuru Munakata
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima
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Hammad H. Epithelial Cell Regulation of Immune Responses in the Lung. Mucosal Immunol 2015. [DOI: 10.1016/b978-0-12-415847-4.00029-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kowalewska PM, Patrick AL, Fox-Robichaud AE. Syndecan-1 in the mouse parietal peritoneum microcirculation in inflammation. PLoS One 2014; 9:e104537. [PMID: 25184228 PMCID: PMC4153572 DOI: 10.1371/journal.pone.0104537] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 06/22/2014] [Indexed: 12/31/2022] Open
Abstract
Background The heparan sulfate proteoglycan syndecan-1 (CD138) was shown to regulate inflammatory responses by binding chemokines and cytokines and interacting with adhesion molecules, thereby modulating leukocyte trafficking to tissues. The objectives of this study were to examine the expression of syndecan-1 and its role in leukocyte recruitment and chemokine presentation in the microcirculation underlying the parietal peritoneum. Methods Wild-type BALB/c and syndecan-1 null mice were stimulated with an intraperitoneal injection of Staphylococcus aureus LTA, Escherichia coli LPS or TNFα and the microcirculation of the parietal peritoneum was examined by intravital microscopy after 4 hours. Fluorescence confocal microscopy was used to examine syndecan-1 expression in the peritoneal microcirculation using fluorescent antibodies. Blocking antibodies to adhesion molecules were used to examine the role of these molecules in leukocyte-endothelial cell interactions in response to LTA. To determine whether syndecan-1 co-localizes with chemokines in vivo, fluorescent antibodies to syndecan-1 were co-injected intravenously with anti-MIP-2 (CXCL2), anti-KC (CXCL1) or anti-MCP-1 (CCL2). Results and Conclusion Syndecan-1 was localized to the subendothelial region of peritoneal venules and the mesothelial layer. Leukocyte rolling was significantly decreased with LPS treatment while LTA and TNFα significantly increased leukocyte adhesion compared with saline control. Leukocyte-endothelial cell interactions were not different in syndecan-1 null mice. Antibody blockade of β2 integrin (CD18), ICAM-1 (CD54) and VCAM-1 (CD106) did not decrease leukocyte adhesion in response to LTA challenge while blockade of P-selectin (CD62P) abrogated leukocyte rolling. Lastly, MIP-2 expression in the peritoneal venules was not dependent on syndecan-1 in vivo. Our data suggest that syndecan-1 is expressed in the parietal peritoneum microvasculature but does not regulate leukocyte recruitment and is not necessary for the presentation of the chemokine MIP-2 in this tissue.
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Affiliation(s)
| | - Amanda L Patrick
- Thrombosis and Atherosclerosis Research Institute and the Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Alison E Fox-Robichaud
- Thrombosis and Atherosclerosis Research Institute and the Department of Medicine, McMaster University, Hamilton, ON, Canada
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Syndecan-3 is selectively pro-inflammatory in the joint and contributes to antigen-induced arthritis in mice. Arthritis Res Ther 2014; 16:R148. [PMID: 25015005 PMCID: PMC4227035 DOI: 10.1186/ar4610] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 06/24/2014] [Indexed: 01/09/2023] Open
Abstract
Introduction Syndecans are heparan sulphate proteoglycans expressed by endothelial cells. Syndecan-3 is expressed by synovial endothelial cells of rheumatoid arthritis (RA) patients where it binds chemokines, suggesting a role in leukocyte trafficking. The objective of the current study was to examine the function of syndecan-3 in joint inflammation by genetic deletion in mice and compare with other tissues. Methods Chemokine C-X-C ligand 1 (CXCL1) was injected in the joints of syndecan-3−/−and wild-type mice and antigen-induced arthritis performed. For comparison chemokine was administered in the skin and cremaster muscle. Intravital microscopy was performed in the cremaster muscle. Results Administration of CXCL1 in knee joints of syndecan-3−/−mice resulted in reduced neutrophil accumulation compared to wild type. This was associated with diminished presence of CXCL1 at the luminal surface of synovial endothelial cells where this chemokine clustered and bound to heparan sulphate. Furthermore, in the arthritis model syndecan-3 deletion led to reduced joint swelling, leukocyte accumulation, cartilage degradation and overall disease severity. Conversely, CXCL1 administration in the skin of syndecan-3 null mice provoked increased neutrophil recruitment and was associated with elevated luminal expression of E-selectin by dermal endothelial cells. Similarly in the cremaster, intravital microscopy showed increased numbers of leukocytes adhering and rolling in venules in syndecan-3−/−mice in response to CXCL1 or tumour necrosis factor alpha. Conclusions This study shows a novel role for syndecan-3 in inflammation. In the joint it is selectively pro-inflammatory, functioning in endothelial chemokine presentation and leukocyte recruitment and cartilage damage in an RA model. Conversely, in skin and cremaster it is anti-inflammatory.
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Interleukin-1α promotes extracellular shedding of syndecan-2 via induction of matrix metalloproteinase-7 expression. Biochem Biophys Res Commun 2014; 446:487-92. [PMID: 24613844 DOI: 10.1016/j.bbrc.2014.02.142] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Accepted: 02/28/2014] [Indexed: 12/11/2022]
Abstract
The cell surface heparan sulfate proteoglycan, syndecan-2, is known to play an important role in the tumorigenic activity of colon cancer cells. In addition, the extracellular domain of syndecan-2 is cleaved by matrix metalloproteinase-7 (MMP-7) in various colon cancer cells, but factors involved in regulating this process remain unknown. Here, we demonstrate a role for interleukin-1α (IL-1α) in syndecan-2 shedding in colon cancer cells. Treatment of low metastatic (HT-29) and highly metastatic (HCT-116) colon cancer cells with various soluble growth factors and cytokines revealed that IL-1α specifically increased extracellular shedding of syndecan-2 in a concentration- and time-dependent manner. IL-1α did not affect the expression of syndecan-2, but did significantly reduce its cell surface levels. Notably, IL-1α increased the mRNA expression and subsequent secreted levels of MMP-7 protein and enhanced the phosphorylation of p38 and ERK mitogen-activated protein kinases. Furthermore, increased syndecan-2 shedding was dependent on the mitogen-activated protein kinase-mediated MMP-7 expression. Taken together, these data suggest that IL-1α regulates extracellular domain shedding of syndecan-2 through regulation of the MAP kinase-mediated MMP-7 expression in colon cancer cells.
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Tomasdottir V, Thorleifsdottir S, Vikingsson A, Hardardottir I, Freysdottir J. Dietary omega-3 fatty acids enhance the B1 but not the B2 cell immune response in mice with antigen-induced peritonitis. J Nutr Biochem 2013; 25:111-7. [PMID: 24332949 DOI: 10.1016/j.jnutbio.2013.09.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Revised: 09/06/2013] [Accepted: 09/10/2013] [Indexed: 12/14/2022]
Abstract
The effects of omega-3 fatty acids on the adaptive immune response have mainly been analysed in vitro with varying results. How omega-3 fatty acids affect the adaptive immune response in vivo is largely unknown. This study examined the effects of dietary fish oil on the adaptive immune response in antigen-induced inflammation in mice, focusing on its effects on B cells and B cell subsets. Mice were fed a control diet with or without 2.8% fish oil, immunized twice with methylated BSA (mBSA) and peritonitis induced by intraperitoneal injection of mBSA. Serum, spleen and peritoneal exudate were collected prior to and at different time points after induction of peritonitis. Serum levels of mBSA-specific antibodies were determined by ELISA and the number of peritoneal and splenic lymphocytes by flow cytometry. The levels of germinal center B cells and IgM(+), IgG(+) and CD138(+) cells in spleen were evaluated by immunoenzyme staining. Mice fed the fish oil diet had more peritoneal B1 cells, more IgM(+) cells in spleen and higher levels of serum mBSA-specific IgM antibodies compared with that in mice fed the control diet. However, dietary fish oil did not affect the number of peritoneal B2 cells, splenic IgG(+) or CD138(+) cells or serum levels of mBSA-specific IgG antibodies in mice with mBSA-induced peritonitis. These results indicate that dietary fish oil can enhance the adaptive immune response, specifically the B1 cell response, which may lead to better protection against secondary infection as well as improvement in reaching homeostasis following antigenic challenge.
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Affiliation(s)
- Valgerdur Tomasdottir
- Center of Rheumatology Research, Landspitali - The University Hospital of Iceland, Reykjavik, Iceland; Department of Immunology, Landspitali - The University Hospital of Iceland, Reykjavik, Iceland; Department of Biochemistry and Molecular Biology, Faculty of Medicine, Biomedical Center, University of Iceland, 101 Reykjavik, Iceland
| | - Sigrun Thorleifsdottir
- Center of Rheumatology Research, Landspitali - The University Hospital of Iceland, Reykjavik, Iceland; Department of Immunology, Landspitali - The University Hospital of Iceland, Reykjavik, Iceland; Department of Biochemistry and Molecular Biology, Faculty of Medicine, Biomedical Center, University of Iceland, 101 Reykjavik, Iceland
| | - Arnor Vikingsson
- Center of Rheumatology Research, Landspitali - The University Hospital of Iceland, Reykjavik, Iceland
| | - Ingibjorg Hardardottir
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Biomedical Center, University of Iceland, 101 Reykjavik, Iceland
| | - Jona Freysdottir
- Center of Rheumatology Research, Landspitali - The University Hospital of Iceland, Reykjavik, Iceland; Department of Immunology, Landspitali - The University Hospital of Iceland, Reykjavik, Iceland; Department of Immunology, Faculty of Medicine, Biomedical Center, University of Iceland, 101 Reykjavik, Iceland.
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Bae J, Jeong S, Lee JY, Lee HJ, Choi BH, Kim JE, Choi I, Chun T. Molecular cloning and expression analysis of pig CD138. Res Vet Sci 2013; 95:1021-5. [PMID: 24128845 DOI: 10.1016/j.rvsc.2013.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 09/12/2013] [Accepted: 09/20/2013] [Indexed: 11/25/2022]
Abstract
CD138 (syndecan-1) interacts with various components of the extracellular matrix and associates with the actin cytoskeleton. In this study, we cloned pig CD138 cDNA and determined its complete cDNA sequence. Pig CD138 cDNA contained an open reading frame (930 bp) encoding 309 amino acids with five well conserved putative glycosaminoglycan attachment sites, a putative cleavage site for matrix metalloproteinases, and conserved motifs involved in signal transduction among mammalian species. Pig CD138 mRNA was detected in various tissues, including lymphoid and non-lymphoid organs, indicating the multicellular functions of CD138 in pigs. Western blot and flow cytometry analyses detected an approximate 35 kDa pig CD138 protein expressed on the cell surface. Further immunohistochemistry analysis revealed that CD138 expression was mainly observed in submucosa and lamina propria of the pig small intestine. Further study will be necessary to define the functional importance of CD138 during specific infectious diseases in pigs.
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Affiliation(s)
- Joonbeom Bae
- Division of Biotechnology, School of Life Sciences and Biotechnology, Korea University, Seoul 136-701, Republic of Korea
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Zhang X, Wu C, Song J, Götte M, Sorokin L. Syndecan-1, a cell surface proteoglycan, negatively regulates initial leukocyte recruitment to the brain across the choroid plexus in murine experimental autoimmune encephalomyelitis. THE JOURNAL OF IMMUNOLOGY 2013; 191:4551-61. [PMID: 24078687 DOI: 10.4049/jimmunol.1300931] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The cell surface heparan sulfate proteoglycan, syndecan-1, has been reported to be a negative regulator of various inflammatory processes, but its precise mode of action is poorly defined. In this study, we use the murine model of the 35-55 peptide of myelin oligodendrocyte glycoprotein-induced experimental autoimmune encephalomyelitis (EAE), a T lymphocyte-mediated inflammation where the steps in disease development and recovery are well characterized, to decipher how syndecan-1 impacts on the inflammatory reaction. Syndecan-1 knockout (Sdc-1(-/-)) mice show enhanced disease severity and impaired recovery. The use of bone marrow chimeric mice reveals that both an immune cell and a CNS-resident source of syndecan-1 contribute to this phenotype. Epithelial cells of the choroid plexus, where initial CCL20-induced leukocyte recruitment to the brain occurs, are identified as the predominant site of syndecan-1 expression. Syndecan-1 is lost from this site during the course of EAE by shedding into the cerebrospinal fluid, which correlates with loss of epithelial cell surface-bound CCL20 and is associated with the upregulation of IL-6 expression. In Sdc-1(-/-) mice, early leukocyte recruitment via the choroid plexus is enhanced, and IL-6 is elevated, which collectively results in higher numbers of the disease inducing Th17 cells in the CNS, thereby contributing to enhanced disease severity. Furthermore, Sdc-1(-/-) mice have intrinsically elevated plasma cell numbers and higher myelin oligodendrocyte glycoprotein-specific Ab levels during EAE, which we propose contributes to impaired recovery. Our data identify the choroid plexus epithelium as a novel source of IL-6 in EAE and demonstrate that its expression negatively correlates with syndecan-1 expression at this site.
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Affiliation(s)
- Xueli Zhang
- Institute for Physiological Chemistry and Pathobiochemistry, University of Muenster, 48149 Muenster, Germany
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De Rossi G, Whiteford JR. Novel insight into the biological functions of syndecan ectodomain core proteins. Biofactors 2013; 39:374-82. [PMID: 23559542 DOI: 10.1002/biof.1104] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Accepted: 02/18/2013] [Indexed: 01/02/2023]
Abstract
Syndecans are a four member family of multifunctional transmembrane heparan sulphate bearing cell surface receptors. Each family member has common molecular architecture but a distinct expression profile. Numerous molecular interactions between syndecan heparan sulphate chains, growth factors, cytokines, and extracellular matrix molecules have been reported and syndecans are intimately associated with cell adhesion and migration. Here, we describe the important emerging concept that contained within syndecan extracellular core proteins are "adhesion regulatory domains." Cell adhesion is driven by the integrins and syndecan ectodomain adhesion regulatory domains can alter integrin driven cellular responses. Cell adhesion and migration is central to numerous pathologies and an understanding of how syndecan ectodomains influence integrins will lead to novel therapeutic strategies.
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Affiliation(s)
- Giulia De Rossi
- Centre for Microvascular Research, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6B, UK
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Tomasdottir V, Vikingsson A, Freysdottir J, Hardardottir I. Dietary fish oil reduces the acute inflammatory response and enhances resolution of antigen-induced peritonitis. J Nutr Biochem 2013; 24:1758-65. [PMID: 23769761 DOI: 10.1016/j.jnutbio.2013.03.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Revised: 03/02/2013] [Accepted: 03/22/2013] [Indexed: 01/21/2023]
Abstract
Dietary n-3 polyunsaturated fatty acids (PUFA) influence the inductive phase of inflammation but less is known about their effects on the resolution phase. This study examined the effects of dietary fish oil on induction and resolution of antigen-induced inflammation in mice. Mice were fed a control diet with or without 2.8% fish oil, immunized twice with methylated BSA (mBSA) and inflammation induced by intraperitoneal injection of mBSA. Prior to and at different time points after mBSA administration, peritoneal cells were analyzed and expression of surface molecules determined by flow cytometry. Concentration of chemokines, cytokines and soluble cytokine receptors was determined by ELISA. Mice fed the fish oil diet had fewer peritoneal neutrophils, shorter resolution interval and lower levels of pro-inflammatory cytokines and chemokines than mice fed the control diet. In mice fed the fish oil diet there was an early peak in peritoneal levels of the immunosuppressive molecules sIL-6R and TGF-β, that was not seen in mice fed the control diet. In the resolution phase, peritoneal macrophages from mice fed the fish oil diet expressed more of the atypical chemokine receptor D6 and peritoneal TGF-β levels were higher than that in mice fed the control diet. Furthermore, in the late-resolution phase there were more peritoneal eosinophils and macrophages in mice fed the fish oil diet than in mice fed the control diet. These results demonstrate a suppressive effect of n-3 PUFA on the inductive phase of inflammation and indicate an enhancing effect of n-3 PUFA on resolution of inflammation.
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Affiliation(s)
- Valgerdur Tomasdottir
- Department of Biochemistry and Molecular Biology, Biomedical Center, University of Iceland, 101 Reykjavik, Iceland; Center of Rheumatology Research and Department of Immunology, Landspitali - The University Hospital of Iceland, Reykjavik, Iceland
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Yang T, Ramocki MB, Neul JL, Lu W, Roberts L, Knight J, Ward CS, Zoghbi HY, Kheradmand F, Corry DB. Overexpression of methyl-CpG binding protein 2 impairs T(H)1 responses. Sci Transl Med 2013; 4:163ra158. [PMID: 23220634 DOI: 10.1126/scitranslmed.3004430] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The DNA binding protein methyl-CpG binding protein 2 (MeCP2) critically influences neuronal and brain function by modulating gene expression, and children with overexpression of the MECP2 gene exhibit postnatal neurological syndromes. We demonstrate that some children with MECP2 duplication also display variable immunological abnormalities that include reductions in memory T and B cells and natural killer cells and immunoglobulin assay responses. Moreover, whereas mice with MeCP2 overexpression were unable to control infection with the intra-macrophage parasite Leishmania major and secrete interferon-γ (IFN-γ) from involved lymph nodes, they were able to control airway fungal infection by Aspergillus niger and mount protective T helper cell type 2 (T(H)2)-dependent allergic responses. Relative to normal T cells, T(H) cells from children and mice with MECP2 duplication displayed similar impairments in IFN-γ secretion and T(H)1 responses that were due to both MeCP2-dependent suppression of IFN-γ transcription and sequestration of the IFN-γ locus as assessed by chromatin immunoprecipitation assay. Thus, overexpressed MeCP2 aberrantly suppresses IFN-γ secretion from T(H) cells, potentially leading to a partially immunodeficient state. Our findings establish a rational basis for identifying, treating, and preventing infectious complications potentially affecting children with MECP2 duplication.
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Affiliation(s)
- Tianshu Yang
- Translational Biology and Molecular Medicine Program, Baylor College of Medicine, Houston, TX 77030, USA
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Wade A, Robinson AE, Engler JR, Petritsch C, James CD, Phillips JJ. Proteoglycans and their roles in brain cancer. FEBS J 2013; 280:2399-417. [PMID: 23281850 DOI: 10.1111/febs.12109] [Citation(s) in RCA: 135] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 12/21/2012] [Accepted: 12/27/2012] [Indexed: 12/13/2022]
Abstract
Glioblastoma, a malignant brain cancer, is characterized by abnormal activation of receptor tyrosine kinase signalling pathways and a poor prognosis. Extracellular proteoglycans, including heparan sulfate and chondroitin sulfate, play critical roles in the regulation of cell signalling and migration via interactions with extracellular ligands, growth factor receptors and extracellular matrix components, as well as intracellular enzymes and structural proteins. In cancer, proteoglycans help drive multiple oncogenic pathways in tumour cells and promote critical tumour-microenvironment interactions. In the present review, we summarize the evidence for proteoglycan function in gliomagenesis and examine the expression of proteoglycans and their modifying enzymes in human glioblastoma using data obtained from The Cancer Genome Atlas (http://cancergenome.nih.gov/). Furthermore, we demonstrate an association between specific proteoglycan alterations and changes in receptor tyrosine kinases. Based on these data, we propose a model in which proteoglycans and their modifying enzymes promote receptor tyrosine kinase signalling and progression in glioblastoma, and we suggest that cancer-associated proteoglycans are promising biomarkers for disease and therapeutic targets.
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Affiliation(s)
- Anna Wade
- Department of Neurological Surgery, UCSF, San Francisco, CA 94158, USA
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Altemeier WA, Schlesinger SY, Buell CA, Brauer R, Rapraeger AC, Parks WC, Chen P. Transmembrane and extracellular domains of syndecan-1 have distinct functions in regulating lung epithelial migration and adhesion. J Biol Chem 2012; 287:34927-34935. [PMID: 22936802 DOI: 10.1074/jbc.m112.376814] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Syndecan-1 is a cell surface proteoglycan that can organize co-receptors into a multimeric complex to transduce intracellular signals. The syndecan-1 core protein has multiple domains that confer distinct cell- and tissue-specific functions. Indeed, the extracellular, transmembrane, and cytoplasmic domains have all been found to regulate specific cellular processes. Our previous work demonstrated that syndecan-1 controls lung epithelial migration and adhesion. Here, we identified the necessary domains of the syndecan-1 core protein that modulate its function in lung epithelial repair. We found that the syndecan-1 transmembrane domain has a regulatory function in controlling focal adhesion disassembly, which in turn controls cell migration speed. In contrast, the extracellular domain facilitates cell adhesion through affinity modulation of α(2)β(1) integrin. These findings highlight the fact that syndecan-1 is a multidimensional cell surface receptor that has several regulatory domains to control various biological processes. In particular, the lung epithelium requires the syndecan-1 transmembrane domain to govern cell migration and is independent from its ability to control cell adhesion via the extracellular domain.
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Affiliation(s)
- William A Altemeier
- Division of Pulmonary and Critical Care Medicine, Center for Lung Biology, University of Washington, Seattle, Washington 98109-4752
| | - Saundra Y Schlesinger
- Division of Pulmonary and Critical Care Medicine, Center for Lung Biology, University of Washington, Seattle, Washington 98109-4752
| | - Catherine A Buell
- Division of Pulmonary and Critical Care Medicine, Center for Lung Biology, University of Washington, Seattle, Washington 98109-4752
| | - Rena Brauer
- Division of Pulmonary and Critical Care Medicine, Center for Lung Biology, University of Washington, Seattle, Washington 98109-4752
| | - Alan C Rapraeger
- Department of Human Oncology, University of Wisconsin-Madison, Madison, Wisconsin 53792
| | - William C Parks
- Division of Pulmonary and Critical Care Medicine, Center for Lung Biology, University of Washington, Seattle, Washington 98109-4752
| | - Peter Chen
- Division of Pulmonary and Critical Care Medicine, Center for Lung Biology, University of Washington, Seattle, Washington 98109-4752.
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Syndecan-4 over-expression preserves cardiac function in a rat model of myocardial infarction. J Mol Cell Cardiol 2012; 53:250-8. [DOI: 10.1016/j.yjmcc.2012.04.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Revised: 04/14/2012] [Accepted: 04/25/2012] [Indexed: 12/31/2022]
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LaRue M, Gossett JG, Stewart RD, Backer CL, Mavroudis C, Jacobs ML. Plastic Bronchitis in Patients With Fontan Physiology: Review of the Literature and Preliminary Experience With Fontan Conversion and Cardiac Transplantation. World J Pediatr Congenit Heart Surg 2012; 3:364-72. [DOI: 10.1177/2150135112438107] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Madeleine LaRue
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Jeffrey G. Gossett
- Division of Pediatric Cardiology, Children’s Memorial Hospital, Chicago, IL, USA
| | - Robert D. Stewart
- Department of Congenital Heart Surgery, Cleveland Clinic Children’s Hospital, Center for Pediatric and Adult Congenital Heart Disease, Cleveland, OH, USA
| | - Carl L. Backer
- Department of Surgery, Division of Cardiovascular-Thoracic Surgery, Children’s Memorial Hospital, Chicago, IL, USA
| | - Constantine Mavroudis
- Congenital Heart Institute, Walt Disney Pavilion, Florida Hospital for Children, Orlando, FL, USA
| | - Marshall L. Jacobs
- Department of Congenital Heart Surgery, Cleveland Clinic Children’s Hospital, Center for Pediatric and Adult Congenital Heart Disease, Cleveland, OH, USA
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Abstract
Asthma is a T lymphocyte-controlled disease of the airway wall caused by inflammation, overproduction of mucus and airway wall remodeling leading to bronchial hyperreactivity and airway obstruction. The airway epithelium is considered an essential controller of inflammatory, immune and regenerative responses to allergens, viruses and environmental pollutants that contribute to asthma pathogenesis. Epithelial cells express pattern recognition receptors that detect environmental stimuli and secrete endogenous danger signals, thereby activating dendritic cells and bridging innate and adaptive immunity. Improved understanding of the epithelium's function in maintaining the integrity of the airways and its dysfunction in asthma has provided important mechanistic insight into how asthma is initiated and perpetuated and could provide a framework by which to select new therapeutic strategies that prevent exacerbations and alter the natural course of the disease.
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Abstract
Polyunsaturated fatty acids (PUFA) play important roles in the normal physiology and in pathological states including inflammation and cancer. While much is known about the biosynthesis and biological activities of eicosanoids derived from ω6 PUFA, our understanding of the corresponding ω3 series lipid mediators is still rudimentary. The purpose of this review is not to offer a comprehensive summary of the literature on fatty acids in prostate cancer but rather to highlight some of the areas where key questions remain to be addressed. These include substrate preference and polymorphic variants of enzymes involved in the metabolism of PUFA, the relationship between de novo lipid synthesis and dietary lipid metabolism pathways, the contribution of cyclooxygenases and lipoxygenases as well as terminal synthases and prostanoid receptors in prostate cancer, and the potential role of PUFA in angiogenesis and cell surface receptor signaling.
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Abstract
Heparin and glycosaminoglycans (GAGs) related structurally to heparin, notably heparan sulphate, bind to most, if not all, chemokines and many growth factors. The chemokine and growth factor interactions with GAGs localise the peptide mediators to specific sites in tissues and influence their stability and function. This chapter discusses the nature of these interactions and the effect on the function of a number of chemokines (PF-4, interleukin-8, RANTES and SDF-1) and growth factors (FGF, HGF, VEGF) in normal physiology and the disease setting. Novel therapeutic interventions that target chemokine and growth factor interactions with GAGs are also discussed.
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Abstract
Membrane-bound proteoglycans function primarily as coreceptors for many glycosaminoglycan (GAG)-binding ligands at the cell surface. The majority of membrane-bound proteoglycans can also function as soluble autocrine or paracrine effectors as their extracellular domains, replete with all GAG chains, are enzymatically cleaved and released from the cell surface by ectodomain shedding. In particular, the ectodomain shedding of syndecans, a major family of cell surface heparan sulfate proteoglycans, is an important posttranslational mechanism that modulates diverse pathophysiological processes. Syndecan shedding is a tightly controlled process that regulates the onset, progression, and resolution of various infectious and noninfectious inflammatory diseases. This review describes methods to induce and measure the shedding of cell membrane-bound proteoglycans, focusing on syndecan shedding as a prototypic example.
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Affiliation(s)
- Eon Jeong Nam
- Division of Respiratory Diseases, Children's Hospital, Harvard Medical School, Boston, MA, USA
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Xiao J, Angsana J, Wen J, Smith SV, Park PW, Ford ML, Haller CA, Chaikof EL. Syndecan-1 displays a protective role in aortic aneurysm formation by modulating T cell-mediated responses. Arterioscler Thromb Vasc Biol 2011; 32:386-96. [PMID: 22173227 DOI: 10.1161/atvbaha.111.242198] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Chronic inflammation drives progressive and pathological remodeling inherent to formation of abdominal aortic aneurysm (AAA). Syndecan-1 (Sdc-1) is a cell surface heparan sulfate proteoglycan that displays the capacity to modulate inflammatory processes within the vascular wall. In the current investigation, the role of Sdc-1 in AAA formation was examined using 2 models of experimental aneurysm induction, angiotensin II infusion and elastase perfusion. METHODS AND RESULTS Sdc-1 deficiency exacerbated AAA formation in both experimental models and was associated with increased degradation of elastin, greater protease activity, and enhanced inflammatory cell recruitment into the aortic wall. Bone marrow transplantation studies indicated that deficiency of Sdc-1 in marrow-derived cells significantly contributed to AAA severity. Immunostaining revealed augmented Sdc-1 expression in a subset of AAA localized macrophages. We specifically characterized a higher percentage of CD4(+) T cells in Sdc-1-deficient AAA, and antibody depletion studies established the active role of T cells in aneurysmal dilatation. Finally, we confirmed the ability of Sdc-1 macrophage to modulate the inflammatory chemokine environment. CONCLUSIONS These investigations identify cross-talk between Sdc-1-expressing macrophages and AAA-localized CD4(+) T cells, with Sdc-1 providing an important counterbalance to T-cell-driven inflammation in the vascular wall.
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Affiliation(s)
- Jiantao Xiao
- BIDMC, 110 Francis St, Suite 9F, Boston, MA 02215 or Carolyn A. Haller, PhD, BIDMC, 110 Francis St, Suite 9F, Boston, MA 02215, USA
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