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Roberts JL, Kapfhamer D, Devarapalli V, Drissi H. IL-17RA Signaling in Prx1+ Mesenchymal Cells Influences Fracture Healing in Mice. Int J Mol Sci 2024; 25:3751. [PMID: 38612562 PMCID: PMC11011315 DOI: 10.3390/ijms25073751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 03/17/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
Fracture healing is a complex series of events that requires a local inflammatory reaction to initiate the reparative process. This inflammatory reaction is important for stimulating the migration and proliferation of mesenchymal progenitor cells from the periosteum and surrounding tissues to form the cartilaginous and bony calluses. The proinflammatory cytokine interleukin (IL)-17 family has gained attention for its potential regenerative effects; however, the requirement of IL-17 signaling within mesenchymal progenitor cells for normal secondary fracture healing remains unknown. The conditional knockout of IL-17 receptor a (Il17ra) in mesenchymal progenitor cells was achieved by crossing Il17raF/F mice with Prx1-cre mice to generate Prx1-cre; Il17raF/F mice. At 3 months of age, mice underwent experimental unilateral mid-diaphyseal femoral fractures and healing was assessed by micro-computed tomography (µCT) and histomorphometric analyses. The effects of IL-17RA signaling on the osteogenic differentiation of fracture-activated periosteal cells was investigated in vitro. Examination of the intact skeleton revealed that the conditional knockout of Il17ra decreased the femoral cortical porosity but did not affect any femoral trabecular microarchitectural indices. After unilateral femoral fractures, Il17ra conditional knockout impacted the cartilage and bone composition of the fracture callus that was most evident early in the healing process (day 7 and 14 post-fracture). Furthermore, the in vitro treatment of fracture-activated periosteal cells with IL-17A inhibited osteogenesis. This study suggests that IL-17RA signaling within Prx1+ mesenchymal progenitor cells can influence the early stages of endochondral ossification during fracture healing.
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Affiliation(s)
- Joseph L. Roberts
- Department of Orthopaedics, Emory University, Atlanta, GA 30329, USA; (J.L.R.)
- Atlanta VA Health Care System, Decatur, GA 30033, USA
- College of Health Solutions, Arizona State University, Phoenix, AZ 85004, USA
| | - David Kapfhamer
- Department of Orthopaedics, Emory University, Atlanta, GA 30329, USA; (J.L.R.)
- Atlanta VA Health Care System, Decatur, GA 30033, USA
| | - Varsha Devarapalli
- Department of Orthopaedics, Emory University, Atlanta, GA 30329, USA; (J.L.R.)
- Atlanta VA Health Care System, Decatur, GA 30033, USA
| | - Hicham Drissi
- Department of Orthopaedics, Emory University, Atlanta, GA 30329, USA; (J.L.R.)
- Atlanta VA Health Care System, Decatur, GA 30033, USA
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Chang YH, Hsing CH, Chiu CJ, Wu YR, Hsu SM, Hsu YH. Protective role of IL-17-producing γδ T cells in a laser-induced choroidal neovascularization mouse model. J Neuroinflammation 2023; 20:279. [PMID: 38007487 PMCID: PMC10676594 DOI: 10.1186/s12974-023-02952-1] [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: 08/14/2023] [Accepted: 11/07/2023] [Indexed: 11/27/2023] Open
Abstract
BACKGROUND Vision loss in patients with wet/exudative age-related macular degeneration (AMD) is associated with choroidal neovascularization (CNV), and AMD is the leading cause of irreversible vision impairment in older adults. Interleukin-17A (IL-17A) is a component of the microenvironment associated with some autoimmune diseases. Previous studies have indicated that wet AMD patients have elevated serum IL-17A levels. However, the effect of IL-17A on AMD progression needs to be better understood. We aimed to investigate the role of IL-17A in a laser-induced CNV mouse model. METHODS We established a laser-induced CNV mouse model in wild-type (WT) and IL-17A-deficient mice and then evaluated the disease severity of these mice by using fluorescence angiography. We performed enzyme-linked immunosorbent assay (ELISA) and fluorescence-activated cell sorting (FACS) to analyze the levels of IL-17A and to investigate the immune cell populations in the eyes of WT and IL-17A-deficient mice. We used ARPE-19 cells to clarify the effect of IL-17A under oxidative stress. RESULTS In the laser-induced CNV model, the CNV lesions were larger in IL-17A-deficient mice than in WT mice. The numbers of γδ T cells, CD3+CD4+RORγt+ T cells, Treg cells, and neutrophils were decreased and the number of macrophages was increased in the eyes of IL-17A-deficient mice compared with WT mice. In WT mice, IL-17A-producing γδ T-cell numbers increased in a time-dependent manner from day 7 to 28 after laser injury. IL-6 levels increased and IL-10, IL-24, IL-17F, and GM-CSF levels decreased in the eyes of IL-17A-deficient mice after laser injury. In vitro, IL-17A inhibited apoptosis and induced the expression of the antioxidant protein HO-1 in ARPE-19 cells under oxidative stress conditions. IL-17A facilitated the repair of oxidative stress-induced barrier dysfunction in ARPE-19 cells. CONCLUSIONS Our findings provide new insight into the protective effect of IL-17A in a laser-induced CNV model and reveal a novel regulatory role of IL-17A-producing γδ T cells in the ocular microenvironment in wet AMD.
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Affiliation(s)
- Yu-Hsien Chang
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chung-Hsi Hsing
- Department of Anesthesiology, Chi Mei Medical Center, Tainan, Taiwan
- Department of Medical Research, Chi Mei Medical Center, Tainan, Taiwan
| | - Chiao-Juno Chiu
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Rou Wu
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Sheng-Min Hsu
- Department of Ophthalmology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Hsiang Hsu
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
- Research Center of Clinical Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
- Antibody New Drug Research Center, National Cheng Kung University, Tainan, Taiwan.
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Zou Y, Zhang X, Liang J, Peng L, Qin J, Zhou F, Liu T, Dai L. Mucin 1 aggravates synovitis and joint damage of rheumatoid arthritis by regulating inflammation and aggression of fibroblast-like synoviocytes. Bone Joint Res 2022; 11:639-651. [PMID: 36048147 PMCID: PMC9533250 DOI: 10.1302/2046-3758.119.bjr-2021-0398.r2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Aims To explore the synovial expression of mucin 1 (MUC1) and its role in rheumatoid arthritis (RA), as well as the possible downstream mechanisms. Methods Patients with qualified synovium samples were recruited from a RA cohort. Synovium from patients diagnosed as non-inflammatory orthopaedic arthropathies was obtained as control. The expression and localization of MUC1 in synovium and fibroblast-like synoviocytes were assessed by immunohistochemistry and immunofluorescence. Small interfering RNA and MUC1 inhibitor GO-203 were adopted for inhibition of MUC1. Lysophosphatidic acid (LPA) was used as an activator of Rho-associated pathway. Expression of inflammatory cytokines, cell migration, and invasion were evaluated using quantitative real-time polymerase chain reaction (PCR) and Transwell chamber assay. Results A total of 63 RA patients and ten controls were included. Expression of MUC1 was observed in both the synovial lining and sublining layer. The percentage of MUC1+ cells in the lining layer of synovium was significantly higher in RA than that in control, and positively correlated to joint destruction scores of RA. Meanwhile, MUC1+ cells in the sublining layer were positively correlated to the Krenn subscore of inflammatory infiltration. Knockdown of MUC1, rather than GO-203 treatment, ameliorated the expression of proinflammatory cytokines, cell migration, and invasion of rheumatoid synoviocytes. Knockdown of MUC1 decreased expression of RhoA, Cdc42, and Rac1. Treatment with LPA compromised the inhibition of migration and invasion, but not inflammation, of synoviocytes by MUC1 knockdown. Conclusion Upregulated MUC1 promotes the aggression of rheumatoid synoviocytes via Rho guanosine triphosphatases (GTPases), thereby facilitating synovitis and joint destruction during the pathological process of RA. Cite this article: Bone Joint Res 2022;11(9):639–651.
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Affiliation(s)
- Yaoyao Zou
- Department of Rheumatology, Sun Yat-Sen Memorial Hospital, Guangzhou, China
| | - Xuepei Zhang
- Department of Rheumatology, Sun Yat-Sen Memorial Hospital, Guangzhou, China
| | - Jinjian Liang
- Department of Rheumatology, Sun Yat-Sen Memorial Hospital, Guangzhou, China
| | - Liqin Peng
- Department of Rheumatology, Sun Yat-Sen Memorial Hospital, Guangzhou, China
| | - Jiale Qin
- Zhong Shan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Feng Zhou
- Zhong Shan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Ting Liu
- Zhong Shan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Lie Dai
- Department of Rheumatology, Sun Yat-Sen Memorial Hospital, Guangzhou, China
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4
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Abstract
Rho guanosine triphosphatase (GTPases), as molecular switches, have been identified to be dysregulated and involved in the pathogenesis of various rheumatic diseases, mainly including rheumatoid arthritis, osteoarthritis, systemic sclerosis, and systemic lupus erythematosus. Downstream pathways involving multiple types of cells, such as fibroblasts, chondrocytes, synoviocytes, and immunocytes are mediated by activated Rho GTPases to promote pathogenesis. Targeted therapy via inhibitors of Rho GTPases has been implicated in the treatment of rheumatic diseases, demonstrating promising effects. In this review, the effects of Rho GTPases in the pathogenesis of rheumatic diseases are summarized, and the Rho GTPase-mediated pathways are elucidated. Therapeutic strategies using Rho GTPase inhibitors in rheumatic diseases are also discussed to provide insights for further exploration of targeted therapy in preclinical studies and clinical practice. Future directions on studies of Rho GTPases in rheumatic diseases based on current understandings are provided.
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Affiliation(s)
- Ruijie Zeng
- Department of Gastroenterology, Guangdong Academy of Medical Sciences, Guangdong Provincial People's Hospital, Guangzhou 510080, China
- Shantou University Medical College, Shantou 515041, China
| | - Zewei Zhuo
- Department of Gastroenterology, Guangdong Academy of Medical Sciences, Guangdong Provincial People's Hospital, Guangzhou 510080, China
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou 510006, China
| | - Yujun Luo
- Department of Gastroenterology, Guangdong Academy of Medical Sciences, Guangdong Provincial People's Hospital, Guangzhou 510080, China
| | - Weihong Sha
- Department of Gastroenterology, Guangdong Academy of Medical Sciences, Guangdong Provincial People's Hospital, Guangzhou 510080, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
- School of Medicine, South China University of Technology, Guangzhou 510006, China
- Corresponding author
| | - Hao Chen
- Department of Gastroenterology, Guangdong Academy of Medical Sciences, Guangdong Provincial People's Hospital, Guangzhou 510080, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
- School of Medicine, South China University of Technology, Guangzhou 510006, China
- Corresponding author
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5
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Guan C, Zhao F, Yang Z, Tang Q, Wang L, Li X, Zhang L, Deng Z, Hou H, Wang J, Xu Y, Zhang R, Lin Y, Tan P, Zhang Y, Liu S, Zhang L. A review of key cytokines based on gene polymorphism in the pathogenesis of pre-eclampsia. Am J Reprod Immunol 2021; 87:e13503. [PMID: 34599631 DOI: 10.1111/aji.13503] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/26/2021] [Accepted: 09/28/2021] [Indexed: 12/15/2022] Open
Abstract
Although a number of theories have been suggested, including roles for oxidative stress, an abnormal maternal-fetal interface, and genetic and environmental factors, the etiopathology of pre-eclampsia (PE) remains unclear. Maternal immune tolerance is important for maintaining pregnancy, and researchers have increasingly focused on the critical roles of cytokines in the pathogenesis of PE in recent years. The assessment of candidate genetic polymorphisms in PE could partially elucidate the mechanisms of susceptibility to disease, and contribute to seeking for new diagnosis and treatment methods of PE. PE can lead to severe complications, and even the death of both mother and fetus. Although the complex pathology is not yet clear, some evidence suggested that the occurrence of PE is related to inflammatory factors. We reviewed the current understandings of roles of cytokines in PE, and provided an extensive overview of the role of single nucleotide chain polymorphisms (SNPs) in the genes potentially underlying the pathophysiology of PE.
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Affiliation(s)
- Chengcheng Guan
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Fei Zhao
- Department of gynecology and obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Zhencui Yang
- Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Qian Tang
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ling Wang
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xueli Li
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lixia Zhang
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ziwen Deng
- Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Huabin Hou
- Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jingli Wang
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yinglei Xu
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ru Zhang
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yan Lin
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ping Tan
- Department of gynecology and obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yan Zhang
- Department of gynecology and obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shiguo Liu
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lu Zhang
- Medical genetic department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
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Anti-IL-17A treatment reduces serum inflammatory, angiogenic and tissue remodeling biomarkers accompanied by less synovial high endothelial venules in peripheral spondyloarthritis. Sci Rep 2020; 10:21094. [PMID: 33273664 PMCID: PMC7713433 DOI: 10.1038/s41598-020-78204-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 11/17/2020] [Indexed: 12/11/2022] Open
Abstract
Spondyloarthritis (SpA) is characterized by inflammation and new bone formation. The exact pathophysiology underlying these processes remains elusive. We propose that the extensive neoangiogenesis in SpA could play a role both in sustaining/enhancing inflammation and in new bone formation. While ample data is available on effects of anti-TNF on angiogenesis, effects of IL-17A blockade on serum markers are largely unknown. We aimed to assess the impact of secukinumab (anti-IL-17A) on synovial neoangiogenesis in peripheral SpA, and how this related to changes in inflammatory and tissue remodeling biomarkers. Serum samples from 20 active peripheral SpA patients included in a 12 week open-label trial with secukinumab were analyzed for several markers of angiogenesis and tissue remodeling. Synovial biopsies taken before and after treatment were stained for vascular markers. Serum levels of MMP-3, osteopontin, IL-6 (all P < 0.001), IL-31, S100A8, S100A9, Vascular Endothelial Growth Factor A (VEGF-A), IL-33, TNF-α (all P < 0.05) decreased significantly upon anti-IL17A treatment. Secukinumab treatment resulted in a decrease in the number of synovial high endothelial venules and lymphoid aggregate score. These results indicate that anti-IL-17A not only diminishes inflammation, but also impacts angiogenesis and tissue remodeling/new bone formation. This may have important implications for disease progression and/or structural damage.
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7
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Two patterns of cytokine production by placental macrophages. Placenta 2020; 91:1-10. [PMID: 31941612 DOI: 10.1016/j.placenta.2020.01.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 12/09/2019] [Accepted: 01/07/2020] [Indexed: 01/07/2023]
Abstract
INTRODUCTION Macrophages participate in the regulation immune and morphogenetic events in the placenta. However, these roles remain unclear for placental macrophages (Hofbauer cells). The aims of this study were to characterize the consecutive steps of cytokine production (intracellular synthesis and secretion) in placental macrophages in early and late gestation and to compare the secretory profiles of placental macrophages and villous tissue. METHODS Macrophages and villous tissue were isolated from placentas obtained from normal pregnancies at either 9-12 or 38-40 weeks of gestation. Intracellular cytokines were determined by flow cytometry after staining with monoclonal antibodies. Secreted cytokines were quantified by cytometric bead array and ELISA. RESULTS Two patterns of cytokine production were revealed in placental macrophages. Cytokines in the first group (IL-1, IL-6, IL-8, IL-10, TNFα) demonstrated low basal production and were stimulated by bacterial endotoxin. Cytokines in the second group (IL-11, IL-17A, IL-17F, TGF-β, VEGF) were characterized by constitutive production and did not respond to stimulation. Gestational age-dependent changes were observed: basal secretion of TNFα and IL-8 increased whereas IL-11 and IL-17 secretion decreased in third-trimester macrophages compared with the first-trimester cells. Comparison of cytokine production at the cellular and tissue levels suggested the contribution of the placental macrophages both in intraplacental and extraplacental cytokine production. DISCUSSION It would be safe to assume that the two patterns of cytokine production, revealed in our study, correspond to two regulatory roles of placental macrophages: "immune" and "morphogenetic". The inflammatory phenotype of macrophages is attenuated in early gestation and increases with the progression of pregnancy. The cytokines of the first group supposedly contribute to both local and extraplacental levels, whereas the cytokine effects of the second group are more likely confined to the placental tissue.
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Zou Y, Xu S, Xiao Y, Qiu Q, Shi M, Wang J, Liang L, Zhan Z, Yang X, Olsen N, Zheng SG, Xu H. Long noncoding RNA LERFS negatively regulates rheumatoid synovial aggression and proliferation. J Clin Invest 2018; 128:4510-4524. [PMID: 30198906 DOI: 10.1172/jci97965] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 07/26/2018] [Indexed: 12/27/2022] Open
Abstract
Fibroblast-like synoviocytes (FLSs) are critical to synovial aggression and joint destruction in rheumatoid arthritis (RA). The role of long noncoding RNAs (lncRNAs) in RA is largely unknown. Here, we identified a lncRNA, LERFS (lowly expressed in rheumatoid fibroblast-like synoviocytes), that negatively regulates the migration, invasion, and proliferation of FLSs through interaction with heterogeneous nuclear ribonucleoprotein Q (hnRNP Q). Under healthy conditions, by binding to the mRNA of RhoA, Rac1, and CDC42 - the small GTPase proteins that control the motility and proliferation of FLSs - the LERFS-hnRNP Q complex decreased the stability or translation of target mRNAs and downregulated their protein levels. But in RA FLSs, decreased LERFS levels induced a reduction of the LERFS-hnRNP Q complex, which reduced the binding of hnRNP Q to target mRNA and therefore increased the stability or translation of target mRNA. These findings suggest that a decrease in synovial LERFS may contribute to synovial aggression and joint destruction in RA and that targeting the lncRNA LERFS may have therapeutic potential in patients with RA.
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Affiliation(s)
- Yaoyao Zou
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Siqi Xu
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Youjun Xiao
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Qian Qiu
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Maohua Shi
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jingnan Wang
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Liuqin Liang
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zhongping Zhan
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xiuyan Yang
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Nancy Olsen
- Department of Medicine, Milton S. Hershey Medical Center, Pennsylvania State University, Hershey, Pennsylvania, USA
| | - Song Guo Zheng
- Department of Medicine, Milton S. Hershey Medical Center, Pennsylvania State University, Hershey, Pennsylvania, USA
| | - Hanshi Xu
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
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Wade SM, Trenkmann M, McGarry T, Canavan M, Marzaioli V, Wade SC, Veale DJ, Fearon U. Altered expression of microRNA-23a in psoriatic arthritis modulates synovial fibroblast pro-inflammatory mechanisms via phosphodiesterase 4B. J Autoimmun 2018; 96:86-93. [PMID: 30181004 DOI: 10.1016/j.jaut.2018.08.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 08/17/2018] [Accepted: 08/26/2018] [Indexed: 12/24/2022]
Abstract
OBJECTIVES To investigate the functional role of miR-23a in synovial fibroblasts (SFC) activation in psoriatic arthritis (PsA). METHODS Differential expression of the miR-23a-27a-24-2 cluster was identified by real-time quantitative PCR in PsA synovial tissue and peripheral blood mononuclear cells (PBMC) compared to osteoarthritis (OA) and correlated with disease activity. For regulation experiments, PsA synovial fibroblasts (SFC) were cultured with Toll-like receptor (TLR) ligands and pro-inflammatory cytokines. PsA SFC were transfected with a miR-23a inhibitor to assess the functional effect on migration, invasion and expression of pro-inflammatory meditators. The direct interaction between miR-23a and predicted target mRNA, phosphodiesterase 4B (PDE4B), was examined by luciferase reporter gene assay, with the expression and regulation confirmed by RT-PCR and western blot. A PDE4 inhibitor was used to analyse the function of PDE4B signalling in both miR-23a and Poly(I:C)-induced PsA SFC activation. RESULTS Synovial tissue expression of miR-23a was lower in PsA compared to OA and correlated inversely with disease activity and synovitis. TLR activation via Poly(I:C) and LPS, but not Pam3CSK4, significantly decreased miR-23a expression, with no significant effect observed in reponse to stimulation with pro-inflammatory cytokines. Decreased miR-23a expression enhanced PsA SFC migration, invasion and secretion of IL-6, IL-8, MCP-1, RANTES and VEGF. We identified PDE4B as a direct target of miR-23a and demonstrated enhanced mRNA and protein expression of PDE4B in anti-miR-23a transfected PsA SFC. Poly(I:C) and/or miR-23a-induced migration and enhanced cytokine expression was suppressed by the blockade of PDE4 signalling. CONCLUSIONS In PsA, dysregulated miR-23a expression contributes to synovial inflammation through enhanced SFC activation, via PDE4B signalling, and identifies a novel anti-inflammatory mechanism of PDE4 blockade.
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Affiliation(s)
- Sarah M Wade
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland; Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, University College Dublin, Dublin, Ireland
| | - Michelle Trenkmann
- Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, University College Dublin, Dublin, Ireland
| | - Trudy McGarry
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland; Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, University College Dublin, Dublin, Ireland
| | - Mary Canavan
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Viviana Marzaioli
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Siobhan C Wade
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Douglas J Veale
- Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, University College Dublin, Dublin, Ireland
| | - Ursula Fearon
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland.
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10
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Zhao P, Miao J, Zhang K, Lv M, Han Q, Zhu P. Circulating Angiogenic T Cells Are Increased in Lupus Nephritis Patients. Med Sci Monit 2018; 24:5384-5390. [PMID: 30072685 PMCID: PMC6087034 DOI: 10.12659/msm.908406] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 03/15/2018] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Patients with systemic lupus erythematosus (SLE), especially with lupus nephritis (LN), undergo vascular damage and repair during the course of the disease. Since the recently identified angiogenic T cells (Tang) are involved in endothelial repair coupled with endothelial progenitor cells (EPCs), this study investigated the circulating Tang cells in LN patients and their potential correlations with disease features. MATERIAL AND METHODS Circulating Tang cells and EPCs were assessed by flow cytometry in peripheral blood samples from 67 SLE patients; of these, 32 had LN and 30 were matched healthy controls (HCs). The plasma levels of interleukin IL-17, IL-8, and vascular endothelial growth factor (VEGF) were quantified by immunoassays. RESULTS The percentage of circulating Tang cells in LN patients was significantly increased as compared to the non-LN patients and HCs, and they were positively correlated with the level of EPC and VEGF. Additionally, circulating Tang cell percentages were positively correlated with the extent of proteinuria in LN patients. CONCLUSIONS The increased levels of circulating Tang cells in LN patients might play a role in the balance of endothelium dysfunction in these patients.
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Affiliation(s)
- Peng Zhao
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, P.R. China
- Department of Hematology and Rheumatology, 3201 Hospital, Xi’an Jiaotong University Health Science Center, Hanzhong, Shaanxi, P.R. China
| | - Jinlin Miao
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, P.R. China
| | - Kui Zhang
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, P.R. China
| | - Minghua Lv
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, P.R. China
| | - Qing Han
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, P.R. China
| | - Ping Zhu
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, P.R. China
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11
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MacDonald IJ, Liu SC, Su CM, Wang YH, Tsai CH, Tang CH. Implications of Angiogenesis Involvement in Arthritis. Int J Mol Sci 2018; 19:ijms19072012. [PMID: 29996499 PMCID: PMC6073145 DOI: 10.3390/ijms19072012] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 06/25/2018] [Accepted: 07/08/2018] [Indexed: 12/28/2022] Open
Abstract
Angiogenesis, the growth of new blood vessels, is essential in the pathogenesis of joint inflammatory disorders such as rheumatoid arthritis (RA) and osteoarthritis (OA), facilitating the invasion of inflammatory cells and increase in local pain receptors that contribute to structural damage and pain. The angiogenic process is perpetuated by various mediators such as growth factors, primarily vascular endothelial growth factor (VEGF) and hypoxia-inducible factors (HIFs), as well as proinflammatory cytokines, various chemokines, matrix components, cell adhesion molecules, proteases, and others. Despite the development of potent, well-tolerated nonbiologic (conventional) and biologic disease-modifying agents that have greatly improved outcomes for patients with RA, many remain resistant to these therapies, are only partial responders, or cannot tolerate biologics. The only approved therapies for OA include symptom-modifying agents, such as analgesics, non-steroidal anti-inflammatory drugs (NSAIDs), steroids, and hyaluronic acid. None of the available treatments slow the disease progression, restore the original structure or enable a return to function of the damaged joint. Moreover, a number of safety concerns surround current therapies for RA and OA. New treatments are needed that not only target inflamed joints and control articular inflammation in RA and OA, but also selectively inhibit synovial angiogenesis, while preventing healthy tissue damage. This narrative review of the literature in PubMed focuses on the evidence illustrating the therapeutic benefits of modulating angiogenic activity in experimental RA and OA. This evidence points to new treatment targets in these diseases.
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Affiliation(s)
- Iona J MacDonald
- Graduate Institute of Basic Medical Science, China Medical University, Taichung 40402, Taiwan.
| | - Shan-Chi Liu
- Graduate Institute of Basic Medical Science, China Medical University, Taichung 40402, Taiwan.
- Department of Orthopedic Surgery, China Medical University Hospital, Taichung 40447, Taiwan.
| | - Chen-Ming Su
- Department of Biomedical Sciences Laboratory, Wenzhou Medical University, Dongyang 325035, Zhejiang, China.
| | - Yu-Han Wang
- Graduate Institute of Biomedical Science, China Medical University, Taichung 40402, Taiwan.
| | - Chun-Hao Tsai
- Department of Orthopedic Surgery, China Medical University Hospital, Taichung 40447, Taiwan.
- School of Medicine, China Medical University, Taichung 40402, Taiwan.
| | - Chih-Hsin Tang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung 40402, Taiwan.
- School of Medicine, China Medical University, Taichung 40402, Taiwan.
- Chinese Medicine Research Center, China Medical University, Taichung 40402, Taiwan.
- Department of Biotechnology, College of Health Science, Asia University, Taichung 41354, Taiwan.
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12
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Pavlov O, Selutin A, Pavlova O, Selkov S. Macrophages are a source of IL-17 in the human placenta. Am J Reprod Immunol 2018; 80:e13016. [DOI: 10.1111/aji.13016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 06/12/2018] [Indexed: 12/18/2022] Open
Affiliation(s)
- Oleg Pavlov
- Department of Immunology and Cell Interaction; D.O. Ott Research Institute for Obstetrics, Gynecology and Reproduction; St. Petersburg Russia
| | - Aleksandr Selutin
- Department of Immunology and Cell Interaction; D.O. Ott Research Institute for Obstetrics, Gynecology and Reproduction; St. Petersburg Russia
| | - Oksana Pavlova
- Department of Histology, Cytology and Embryology; Pavlov First Saint Petersburg State Medical University; St. Petersburg Russia
| | - Sergei Selkov
- Department of Immunology and Cell Interaction; D.O. Ott Research Institute for Obstetrics, Gynecology and Reproduction; St. Petersburg Russia
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13
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Panariti A, Baglole CJ, Sanchez V, Eidelman DH, Hussain S, Olivenstein R, Martin JG, Hamid Q. Interleukin-17A and vascular remodelling in severe asthma; lack of evidence for a direct role. Clin Exp Allergy 2018; 48:365-378. [PMID: 29337379 DOI: 10.1111/cea.13093] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 11/10/2017] [Accepted: 12/11/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND Bronchial vascular remodelling may contribute to the severity of airway narrowing through mucosal congestion. Interleukin (IL)-17A is associated with the most severe asthmatic phenotype but whether it might contribute to vascular remodelling is uncertain. OBJECTIVE To assess vascular remodelling in severe asthma and whether IL-17A directly or indirectly may cause endothelial cell activation and angiogenesis. METHODS Bronchial vascularization was quantified in asthmatic subjects, COPD and healthy subjects together with the number of IL-17A+ cells as well as the concentration of angiogenic factors in the sputum. The effect of IL-17A on in vitro angiogenesis, cell migration and endothelial permeability was assessed directly on primary human lung microvascular endothelial cells (HMVEC-L) or indirectly with conditioned medium derived from normal bronchial epithelial cells (NHBEC), fibroblasts (NHBF) and airway smooth muscle cells (ASMC) after IL-17A stimulation. RESULTS Severe asthmatics have increased vascularity compared to the other groups, which correlates positively with the concentrations of angiogenic factors in sputum. Interestingly, we demonstrated that increased bronchial vascularity correlates positively with the number of subepithelial IL-17A+ cells. However IL-17A had no direct effect on HMVEC-L function but it enhanced endothelial tube formation and cell migration through the production of angiogenic factors by NHBE and ASMC. CONCLUSIONS & CLINICAL RELEVANCE Our results shed light on the role of IL-17A in vascular remodelling, most likely through stimulating the synthesis of other angiogenic factors. Knowledge of these pathways may aid in the identification of new therapeutic targets.
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Affiliation(s)
- A Panariti
- Research Institute of the McGill University Health Centre, Meakins-Christie Laboratories, Montreal, QC, Canada
| | - C J Baglole
- Research Institute of the McGill University Health Centre, Meakins-Christie Laboratories, Montreal, QC, Canada
| | - V Sanchez
- Research Institute of the McGill University Health Centre, Meakins-Christie Laboratories, Montreal, QC, Canada
| | - D H Eidelman
- Research Institute of the McGill University Health Centre, Meakins-Christie Laboratories, Montreal, QC, Canada
| | - S Hussain
- Research Institute of the McGill University Health Centre, Meakins-Christie Laboratories, Montreal, QC, Canada
| | - R Olivenstein
- Research Institute of the McGill University Health Centre, Meakins-Christie Laboratories, Montreal, QC, Canada
| | - J G Martin
- Research Institute of the McGill University Health Centre, Meakins-Christie Laboratories, Montreal, QC, Canada
| | - Q Hamid
- Research Institute of the McGill University Health Centre, Meakins-Christie Laboratories, Montreal, QC, Canada
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14
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Al-Soudi A, Kaaij MH, Tas SW. Endothelial cells: From innocent bystanders to active participants in immune responses. Autoimmun Rev 2017; 16:951-962. [PMID: 28698091 DOI: 10.1016/j.autrev.2017.07.008] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Accepted: 06/05/2017] [Indexed: 02/07/2023]
Abstract
The endothelium is crucially important for the delivery of oxygen and nutrients throughout the body under homeostatic conditions. However, it also contributes to pathology, including the initiation and perpetuation of inflammation. Understanding the function of endothelial cells (ECs) in inflammatory diseases and molecular mechanisms involved may lead to novel approaches to dampen inflammation and restore homeostasis. In this article, we discuss the various functions of ECs in inflammation with a focus on pathological angiogenesis, attraction of immune cells, antigen presentation, immunoregulatory properties and endothelial-to-mesenchymal transition (EndMT). We also review the current literature on approaches to target these processes in ECs to modulate immune responses and advance anti-inflammatory therapies.
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Affiliation(s)
- A Al-Soudi
- Amsterdam Rheumatology and Immunology Center, Department of Clinical Immunology & Rheumatology and Laboratory for Experimental Immunology, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands
| | - M H Kaaij
- Amsterdam Rheumatology and Immunology Center, Department of Clinical Immunology & Rheumatology and Laboratory for Experimental Immunology, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands
| | - S W Tas
- Amsterdam Rheumatology and Immunology Center, Department of Clinical Immunology & Rheumatology and Laboratory for Experimental Immunology, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands.
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15
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Matsuura T, Sato M, Nagai K, Sato T, Arito M, Omoteyama K, Suematsu N, Okamoto K, Kato T, Soma Y, Kurokawa MS. Serum peptides as putative modulators of inflammation in psoriasis. J Dermatol Sci 2017; 87:36-49. [PMID: 28431948 DOI: 10.1016/j.jdermsci.2017.03.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 03/21/2017] [Indexed: 12/29/2022]
Abstract
BACKGROUND Psoriasis is a refractory inflammatory disease, however, its pathophysiology is still not fully understood. OBJECTIVE We tried to identify novel serum peptides associated with the pathophysiology of psoriasis. METHODS Serum peptides from 24 patients with psoriasis vulgaris (PV), 10 patients with psoriatic arthritis (PsA), 14 patients with atopic dermatitis (AD), and 23 healthy control (HC) subjects were analyzed by mass spectrometry. The effects of some peptides on the secretion of humoral factors from dermal cells were investigated by cytokine arrays and ELISAs. RESULTS A total of 93 peptides were detected. 24, 20, 23, and 2 peptides showed at least 1.2-fold difference in ion intensity between the psoriasis (PV+PsA) and HC groups, between the PV+PsA and AD groups, between the PV and PsA groups, and between patients with severe-to-moderate PV (n=6) and those with mild PV (n=18), respectively (p<0.05). 13 out of 27 peptides that showed at least 1.5-fold ion intensity difference in the abovementioned 4 comparisons were identified. The parent proteins of the identified peptides included a coagulation factor, proteins involved in the maintenance of skin, and a protein relating to cytoskeleton. We focused on 2 peptides that were increased in the PV+PsA group: a fibrinogen α chain-derived peptide (1462m/z), the unmodified form of which was fibrinopeptide A-des-alanine (FPAdA), and a filaggrin (FLG)-derived peptide (1977m/z), a modified form of FLG2099-2118 (Q2099pE, Q2115E; FLG-pEE). FPAdA stimulation increased the secretion of GROα from dermal microvascular endothelial cells (dMVECs) and decreased the secretion of lipocalin-2 from keratinocytes in comparison to FPAdA-resequenced peptide stimulation (GROα, 280.9±7.3pg/mL vs. 229.6±5.0pg/mL, p<0.001; lipocalin-2, 273±13pg/mL vs. 350±10pg/mL, p<0.01). Interestingly, FLG-pEE stimulation decreased the secretion of GROα, IL-8, and MCP-1 from dMVECs in comparison to FLG-derived control peptide stimulation (GROα, 844.3±47.5pg/mL vs. 1038.5±96.9pg/mL, p<0.05; IL-8, 2240.1±172.6pg/mL vs. 3221.8±523.7pg/mL, p<0.05; MCP-1, 4057.8±157.2pg/mL vs. 4619.1±213.4pg/mL, p<0.05). CONCLUSIONS The results suggested that some serum peptides are involved in the pathophysiology of psoriasis, regulating the secretion of inflammatory chemokines and an antimicrobial protein. The modulation of serum peptides may be a potential therapeutic strategy for psoriasis.
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Affiliation(s)
- Tetsuhiko Matsuura
- Department of Dermatology, St. Marianna University School of Medicine, Japan
| | - Masaaki Sato
- Clinical Proteomics and Molecular Medicine, St. Marianna University Graduate School of Medicine, Japan
| | - Kouhei Nagai
- Department of Genetic Engineering, Faculty of Biology-Oriented Science and Technology, Kindai University, Japan
| | - Toshiyuki Sato
- Clinical Proteomics and Molecular Medicine, St. Marianna University Graduate School of Medicine, Japan
| | - Mitsumi Arito
- Clinical Proteomics and Molecular Medicine, St. Marianna University Graduate School of Medicine, Japan
| | - Kazuki Omoteyama
- Clinical Proteomics and Molecular Medicine, St. Marianna University Graduate School of Medicine, Japan
| | - Naoya Suematsu
- Clinical Proteomics and Molecular Medicine, St. Marianna University Graduate School of Medicine, Japan
| | - Kazuki Okamoto
- Clinical Proteomics and Molecular Medicine, St. Marianna University Graduate School of Medicine, Japan
| | - Tomohiro Kato
- Clinical Proteomics and Molecular Medicine, St. Marianna University Graduate School of Medicine, Japan
| | - Yoshinao Soma
- Department of Dermatology, St. Marianna University School of Medicine, Japan
| | - Manae S Kurokawa
- Disease Biomarker Analysis and Molecular Regulation, St. Marianna University Graduate School of Medicine, Japan.
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16
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Quantitative imaging by pixel-based contrast-enhanced ultrasound reveals a linear relationship between synovial vascular perfusion and the recruitment of pathogenic IL-17A-F +IL-23 + CD161 + CD4 + T helper cells in psoriatic arthritis joints. Clin Rheumatol 2016; 36:391-399. [PMID: 27995384 DOI: 10.1007/s10067-016-3500-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 11/27/2016] [Indexed: 12/14/2022]
Abstract
To develop quantitative imaging biomarkers of synovial tissue perfusion by pixel-based contrast-enhanced ultrasound (CEUS), we studied the relationship between CEUS synovial vascular perfusion and the frequencies of pathogenic T helper (Th)-17 cells in psoriatic arthritis (PsA) joints. Eight consecutive patients with PsA were enrolled in this study. Gray scale CEUS evaluation was performed on the same joint immediately after joint aspiration, by automatic assessment perfusion data, using a new quantification approach of pixel-based analysis and the gamma-variate model. The set of perfusional parameters considered by the time intensity curve includes the maximum value (peak) of the signal intensity curve, the blood volume index or area under the curve, (BVI, AUC) and the contrast mean transit time (MTT). The direct ex vivo analysis of the frequencies of SF IL17A-F+CD161+IL23+ CD4+ T cells subsets were quantified by fluorescence-activated cell sorter (FACS). In cross-sectional analyses, when tested for multiple comparison setting, a false discovery rate at 10%, a common pattern of correlations between CEUS Peak, AUC (BVI) and MTT parameters with the IL17A-F+IL23+ - IL17A-F+CD161+ - and IL17A-F+CD161+IL23+ CD4+ T cells subsets, as well as lack of correlation between both peak and AUC values and both CD4+T and CD4+IL23+ T cells, was observed. The pixel-based CEUS assessment is a truly measure synovial inflammation, as a useful tool to develop quantitative imaging biomarker for monitoring target therapeutics in PsA.
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17
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Lavocat F, Maggi L, Annunziato F, Miossec P. T-cell clones from Th1, Th17 or Th1/17 lineages and their signature cytokines have different capacity to activate endothelial cells or synoviocytes. Cytokine 2016; 88:241-250. [PMID: 27693917 DOI: 10.1016/j.cyto.2016.09.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 09/20/2016] [Accepted: 09/21/2016] [Indexed: 01/21/2023]
Abstract
OBJECTIVE To compare the direct effect of cytokines on synoviocytes and endothelial cells to the effects of supernatants from Th1, Th17 and Th1/17 clones and the direct cell-cell interactions with the same clones. METHODS Th17 and Th1/17 clones were obtained from the CD161+CCR6+ fraction and Th1 clones from the CD161-CCR6- fraction of human CD4+ T-cells. Endothelial cells or synoviocytes were cultured in the presence of either isolated pro-inflammatory cytokines (IL-17 and/or TNF-α) or supernatants from the T-cell clones or co-cultured with T-cell clones themselves. IL-6 and IL-8 expression and production were analyzed. RESULTS IL-17 and TNF-α induced IL-6 and IL-8 expression, although IL-17 alone had a limited effect on endothelial cells compared to synoviocytes. Supernatants from activated T-helper clones also induced IL-6 and IL-8 expression but with discrepancies between endothelial cells and synoviocytes. Endothelial cells were mostly activated by Th1 clone supernatants whereas synoviocytes were activated by all T-cell subtypes. Finally, cell-cell contact experiments showed a great heterogeneity among cell clones, even from the same lineage. IL-6 expression was mostly induced by contact with Th1 clones both in endothelial and mesenchymal cells whereas IL-8 expression was induced by all T-cell clones whatever their phenotype. CONCLUSION We showed that endothelial cells were much more sensitive to Th1 activation whereas synoviocytes were activated by all T-helper lineages. This work highlights the heterogeneity of interactions between T-cells and stromal cells through soluble factors or direct cell contact.
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Affiliation(s)
- Fabien Lavocat
- Department of Immunology and Rheumatology, Immunogenomics and Inflammation Research Unit EA 4130, University of Lyon, Edouard Herriot Hospital, Lyon, France.
| | - Laura Maggi
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.
| | - Francesco Annunziato
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.
| | - Pierre Miossec
- Department of Immunology and Rheumatology, Immunogenomics and Inflammation Research Unit EA 4130, University of Lyon, Edouard Herriot Hospital, Lyon, France.
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18
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Talia DM, Deliyanti D, Agrotis A, Wilkinson-Berka JL. Inhibition of the Nuclear Receptor RORγ and Interleukin-17A Suppresses Neovascular Retinopathy: Involvement of Immunocompetent Microglia. Arterioscler Thromb Vasc Biol 2016; 36:1186-96. [PMID: 27055905 DOI: 10.1161/atvbaha.115.307080] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 03/28/2016] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Although inhibitors of vascular endothelial growth factor (VEGF) provide benefit for the management of neovascular retinopathies, their use is limited to end-stage disease and some eyes are resistant. We hypothesized that retinoic acid-related orphan nuclear receptor γ (RORγ) and its downstream effector, interleukin (IL)-17A, upregulate VEGF and hence are important treatment targets for neovascular retinopathies. APPROACH AND RESULTS Utilizing a model of oxygen-induced retinopathy, confocal microscopy and flow cytometry, we identified that retinal immunocompetent cells, microglia, express IL-17A. This was confirmed in primary cultures of rat retinal microglia, where hypoxia increased IL-17A protein as well as IL-17A, RORγ, and tumor necrosis factor-α mRNA, which were reduced by the RORγ inhibitor, digoxin, and the RORα/RORγ inverse agonist, SR1001. By contrast, retinal macroglial Müller cells and ganglion cells, key sources of VEGF in oxygen-induced retinopathy, did not produce IL-17A when exposed to hypoxia and IL-1β. However, they expressed IL-17 receptors, and in response to IL-17A, secreted VEGF. This suggested that RORγ and IL-17A inhibition might attenuate neovascular retinopathy. Indeed, digoxin and SR1001 reduced retinal vaso-obliteration, neovascularization, and vascular leakage as well as VEGF and VEGF-related placental growth factor. Digoxin and SR1001 reduced microglial-derived IL-17A and Müller cell and ganglion cell damage. The importance of IL-17A in oxygen-induced retinopathy was confirmed by IL-17A neutralization reducing vasculopathy, VEGF, placental growth factor, tumor necrosis factor-α, microglial density and Müller cell, and ganglion cell injury. CONCLUSIONS Our findings indicate that an RORγ/IL-17A axis influences VEGF production and neovascular retinopathy by mechanisms involving neuroglia. Inhibition of RORγ and IL-17A may have potential for the improved treatment of neovascular retinopathies.
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MESH Headings
- Angiogenesis Inhibitors/pharmacology
- Animals
- Antibodies, Monoclonal/pharmacology
- Cells, Cultured
- Digoxin/pharmacology
- Disease Models, Animal
- Ependymoglial Cells/drug effects
- Ependymoglial Cells/immunology
- Ependymoglial Cells/metabolism
- Hyperoxia/complications
- Interleukin-17/antagonists & inhibitors
- Interleukin-17/genetics
- Interleukin-17/metabolism
- Mice, Inbred C57BL
- Microglia/drug effects
- Microglia/immunology
- Microglia/metabolism
- Microglia/pathology
- Nuclear Receptor Subfamily 1, Group F, Member 3/antagonists & inhibitors
- Nuclear Receptor Subfamily 1, Group F, Member 3/genetics
- Nuclear Receptor Subfamily 1, Group F, Member 3/metabolism
- Placenta Growth Factor/metabolism
- Rats, Sprague-Dawley
- Retina/drug effects
- Retina/immunology
- Retina/metabolism
- Retina/pathology
- Retinal Ganglion Cells/drug effects
- Retinal Ganglion Cells/immunology
- Retinal Ganglion Cells/metabolism
- Retinal Neovascularization/immunology
- Retinal Neovascularization/metabolism
- Retinal Neovascularization/pathology
- Retinal Neovascularization/prevention & control
- Retinopathy of Prematurity/immunology
- Retinopathy of Prematurity/metabolism
- Retinopathy of Prematurity/pathology
- Retinopathy of Prematurity/prevention & control
- Signal Transduction/drug effects
- Sulfonamides/pharmacology
- Thiazoles/pharmacology
- Tumor Necrosis Factor-alpha/metabolism
- Vascular Endothelial Growth Factor A/metabolism
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Affiliation(s)
- Dean M Talia
- From the Department of Immunology and Pathology, Monash University, Melbourne, Victoria, Australia
| | - Devy Deliyanti
- From the Department of Immunology and Pathology, Monash University, Melbourne, Victoria, Australia
| | - Alex Agrotis
- From the Department of Immunology and Pathology, Monash University, Melbourne, Victoria, Australia
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19
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Karczewski J, Dobrowolska A, Rychlewska-Hańczewska A, Adamski Z. New insights into the role of T cells in pathogenesis of psoriasis and psoriatic arthritis. Autoimmunity 2016; 49:435-450. [DOI: 10.3109/08916934.2016.1166214] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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20
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Connecting the innate and adaptive immune responses in mouse choroidal neovascularization via the anaphylatoxin C5a and γδT-cells. Sci Rep 2016; 6:23794. [PMID: 27029558 PMCID: PMC4814842 DOI: 10.1038/srep23794] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 03/10/2016] [Indexed: 01/12/2023] Open
Abstract
Neovascular age-related macular degeneration (AMD) is characterized by choroidal neovascularization (CNV). An overactive complement system is associated with AMD pathogenesis, and serum pro-inflammatory cytokines, including IL-17, are elevated in AMD patients. IL-17 is produced by complement C5a-receptor-expressing T-cells. In murine CNV, infiltrating γδT- rather than Th17-cells produce the IL-17 measurable in lesioned eyes. Here we asked whether C5a generated locally in response to CNV recruits IL-17-producing T-cells to the eye. CNV lesions were generated using laser photocoagulation and quantified by imaging; T-lymphocytes were characterized by QRT-PCR. CNV resulted in an increase in splenic IL-17-producing γδT- and Th17-cells; yet in the CNV eye, only elevated levels of γδT-cells were observed. Systemic administration of anti-C5- or anti-C5a-blocking antibodies blunted the CNV-induced production of splenic Th17- and γδT-cells, reduced CNV size and eliminated ocular γδT-cell infiltration. In ARPE-19 cell monolayers, IL-17 triggered a pro-inflammatory state; and splenocyte proliferation was elevated in response to ocular proteins. Thus, we demonstrated that CNV lesions trigger a systemic immune response, augmenting local ocular inflammation via the infiltration of IL-17-producing γδT-cells, which are presumably recruited to the eye in a C5a-dependent manner. Understanding the complexity of complement-mediated pathological mechanisms will aid in the development of an AMD treatment.
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21
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Gene Expression Profiling of IL-17A-Treated Synovial Fibroblasts from the Human Temporomandibular Joint. Mediators Inflamm 2015; 2015:436067. [PMID: 26839464 PMCID: PMC4709758 DOI: 10.1155/2015/436067] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 11/11/2015] [Accepted: 11/17/2015] [Indexed: 11/18/2022] Open
Abstract
Synovial fibroblasts contribute to the inflammatory temporomandibular joint under pathogenic stimuli. Synovial fibroblasts and T cells participate in the perpetuation of joint inflammation in a mutual activation feedback, via secretion of cytokines and chemokines that stimulate each other. IL-17 is an inflammatory cytokine produced primarily by Th17 cells which plays critical role in the pathogenesis of numerous autoimmune and inflammatory diseases. Here, we investigated the roles of IL-17A in temporomandibular joint disorders (TMD) using genome-wide analysis of synovial fibroblasts isolated from patients with TMD. IL-17 receptors were expressed in synovial fibroblasts as assessed using real-time PCR. Microarray analysis indicated that IL-17A treatment of synovial fibroblasts upregulated the expression of IL-6 and chemokines. Real-time PCR analysis showed that the gene expression of IL-6, CXCL1, IL-8, and CCL20 was significantly higher in IL-17A-treated synovial fibroblasts compared to nontreated controls. IL-6 protein production was increased by IL-17A in a time- and a dose-dependent manner. Additionally, IL-17A simulated IL-6 protein production in synovial fibroblasts samples isolated from three patients. Furthermore, signal inhibitor experiments indicated that IL-17-mediated induction of IL-6 was transduced via activation of NFκB and phosphatidylinositol 3-kinase/Akt. These results suggest that IL-17A is associated with the inflammatory progression of TMD.
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22
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Foti DP, Greco M, Palella E, Gulletta E. New laboratory markers for the management of rheumatoid arthritis patients. Clin Chem Lab Med 2015; 52:1729-37. [PMID: 24933628 DOI: 10.1515/cclm-2014-0383] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 05/22/2014] [Indexed: 11/15/2022]
Abstract
Rheumatoid arthritis, the most prominent of systemic autoimmune rheumatic diseases, represents an important social health problem. Recent insights into the immunopathogenic mechanism of this complex and multiform illness might open new perspectives for a more appropriate laboratory approach. In this review we focus on the most relevant pathogenetic mechanism; indicating the laboratory biomarkers specifically linked to early diagnosis, prognosis, evolutive aspects of the disease, and therapeutic efficacy. Evidence based on laboratory medicine could provide the best outcome for patients.
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23
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Lu S, Li H, Gao R, Gao X, Xu F, Wang Q, Lu G, Xia D, Zhou J. IL-17A, but not IL-17F, is indispensable for airway vascular remodeling induced by exaggerated Th17 cell responses in prolonged ovalbumin-challenged mice. THE JOURNAL OF IMMUNOLOGY 2015; 194:3557-66. [PMID: 25780043 DOI: 10.4049/jimmunol.1400829] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 02/02/2015] [Indexed: 12/17/2022]
Abstract
We previously demonstrated an essential role of Th17 cells in excessive mucous secretion and airway smooth muscle proliferation in a prolonged OVA-challenged C57BL/6 mouse model. However, the impact of Th17 cells in vascular remodeling, another characteristic feature of airway remodeling in asthma, remains elusive. This issue was further investigated in this study. The time-course experiments showed that progressively increasing levels of Th17 cells and IL-17A (not IL-17F) in the lungs of prolonged allergen-challenged mice were positively correlated with microvessel density in peribronchial tissues. In addition, exaggerated airway vascular remodeling in this mouse model was exacerbated by airway administration of IL-17A or adoptive transfer of Th17 cells. This effect was dramatically alleviated by the administration of anti-IL-17A Ab, but not anti-IL-17F Ab. Boyden chamber assays indicated that IL-17A accelerates endothelial progenitor cell (EPC) migration. Furthermore, EPC accumulation in the airways of allergen-exposed mice after adoptive transfer of Th17 cells was eliminated by blockade of IL-17A. We found that IL-17A promoted tubule-like formation rather than proliferation of pulmonary microvascular endothelia cells (PMVECs) in vitro. In addition, IL-17A induced PMVEC tube formation via the PI3K/AKT1 pathway, and suppression of the PI3K pathway markedly reduced the formation of tubule-like structures. Collectively, our results indicate that Th17 cells contribute to the airway vascular remodeling in asthma by mediating EPC chemotaxis, as well as PMVEC tube formation, via IL-17A rather than IL-17F.
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Affiliation(s)
- Shan Lu
- Department of Respiratory Diseases, First Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310003 Zhejiang, China
| | - Hequan Li
- Department of Respiratory Diseases, First Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310003 Zhejiang, China;
| | - Rundi Gao
- Department of Respiratory Diseases, First Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310003 Zhejiang, China; Department of Respiratory Diseases, First Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou, 310053 Zhejiang, China
| | - Xuan Gao
- Department of Respiratory Diseases, First Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310003 Zhejiang, China
| | - Fei Xu
- Department of Respiratory Diseases, First Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310003 Zhejiang, China
| | - Qing Wang
- Department of Respiratory Diseases, First Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310003 Zhejiang, China
| | - Guohua Lu
- Department of Respiratory Diseases, First Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310003 Zhejiang, China
| | - Dajing Xia
- School of Public Health, Zhejiang University, Hangzhou, 310058 Zhejiang, China; and Institute of Immunology, Zhejiang University School of Medicine, Hangzhou, 310058 Zhejiang, China
| | - Jianying Zhou
- Department of Respiratory Diseases, First Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310003 Zhejiang, China;
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Whole Genome Expression Profiling and Signal Pathway Screening of MSCs in Ankylosing Spondylitis. Stem Cells Int 2014; 2014:913050. [PMID: 25544849 PMCID: PMC4269092 DOI: 10.1155/2014/913050] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 10/26/2014] [Accepted: 11/12/2014] [Indexed: 11/18/2022] Open
Abstract
The pathogenesis of dysfunctional immunoregulation of mesenchymal stem cells (MSCs) in ankylosing spondylitis (AS) is thought to be a complex process that involves multiple genetic alterations. In this study, MSCs derived from both healthy donors and AS patients were cultured in normal media or media mimicking an inflammatory environment. Whole genome expression profiling analysis of 33,351 genes was performed and differentially expressed genes related to AS were analyzed by GO term analysis and KEGG pathway analysis. Our results showed that in normal media 676 genes were differentially expressed in AS, 354 upregulated and 322 downregulated, while in an inflammatory environment 1767 genes were differentially expressed in AS, 1230 upregulated and 537 downregulated. GO analysis showed that these genes were mainly related to cellular processes, physiological processes, biological regulation, regulation of biological processes, and binding. In addition, by KEGG pathway analysis, 14 key genes from the MAPK signaling and 8 key genes from the TLR signaling pathway were identified as differentially regulated. The results of qRT-PCR verified the expression variation of the 9 genes mentioned above. Our study found that in an inflammatory environment ankylosing spondylitis pathogenesis may be related to activation of the MAPK and TLR signaling pathways.
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Krstić J, Obradović H, Jauković A, Okić-Đorđević I, Trivanović D, Kukolj T, Mojsilović S, Ilić V, Santibañez JF, Bugarski D. Urokinase type plasminogen activator mediates Interleukin-17-induced peripheral blood mesenchymal stem cell motility and transendothelial migration. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2014; 1853:431-44. [PMID: 25433194 DOI: 10.1016/j.bbamcr.2014.11.025] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 11/18/2014] [Accepted: 11/19/2014] [Indexed: 12/18/2022]
Abstract
Mesenchymal stem cells (MSCs) have the potential to migrate toward damaged tissues increasing tissue regeneration. Interleukin-17 (IL-17) is a proinflammatory cytokine with pleiotropic effects associated with many inflammatory diseases. Although IL-17 can modulate MSC functions, its capacity to regulate MSC migration is not well elucidated so far. Here, we studied the role of IL-17 on peripheral blood (PB) derived MSC migration and transmigration across endothelial cells. IL-17 increased PB-MSC migration in a wound healing assay as well as cell mobilization from collagen gel. Concomitantly IL-17 induced the expression of urokinase type plasminogen activator (uPA) without affecting matrix metalloproteinase expression. The incremented uPA expression mediated the capacity of IL-17 to enhance PB-MSC migration in a ERK1,2 MAPK dependent way. Also, IL-17 induced PB-MSC migration alongside with changes in cell polarization and uPA localization in cell protrusions. Moreover, IL-17 increased PB-MSC adhesion to endothelial cells and transendothelial migration, as well as increased the capacity of PB-MSC adhesion to fibronectin, in an uPA-dependent fashion. Therefore, our data suggested that IL-17 may act as chemotropic factor for PB-MSCs by incrementing cell motility and uPA expression during inflammation development.
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Affiliation(s)
- Jelena Krstić
- Laboratory for Experimental Hematology and Stem Cells Institute for Medical Research, University of Belgrade, Dr Subotića 4, 11129 Belgrade, Serbia
| | - Hristina Obradović
- Laboratory for Experimental Hematology and Stem Cells Institute for Medical Research, University of Belgrade, Dr Subotića 4, 11129 Belgrade, Serbia
| | - Aleksandra Jauković
- Laboratory for Experimental Hematology and Stem Cells Institute for Medical Research, University of Belgrade, Dr Subotića 4, 11129 Belgrade, Serbia
| | - Ivana Okić-Đorđević
- Laboratory for Experimental Hematology and Stem Cells Institute for Medical Research, University of Belgrade, Dr Subotića 4, 11129 Belgrade, Serbia
| | - Drenka Trivanović
- Laboratory for Experimental Hematology and Stem Cells Institute for Medical Research, University of Belgrade, Dr Subotića 4, 11129 Belgrade, Serbia
| | - Tamara Kukolj
- Laboratory for Experimental Hematology and Stem Cells Institute for Medical Research, University of Belgrade, Dr Subotića 4, 11129 Belgrade, Serbia
| | - Slavko Mojsilović
- Laboratory for Experimental Hematology and Stem Cells Institute for Medical Research, University of Belgrade, Dr Subotića 4, 11129 Belgrade, Serbia
| | - Vesna Ilić
- Laboratory for Immunology, Institute for Medical Research, University of Belgrade, Dr Subotića 4, 11129 Belgrade, Serbia
| | - Juan F Santibañez
- Laboratory for Experimental Hematology and Stem Cells Institute for Medical Research, University of Belgrade, Dr Subotića 4, 11129 Belgrade, Serbia.
| | - Diana Bugarski
- Laboratory for Experimental Hematology and Stem Cells Institute for Medical Research, University of Belgrade, Dr Subotića 4, 11129 Belgrade, Serbia
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Furst DE, Emery P. Rheumatoid arthritis pathophysiology: update on emerging cytokine and cytokine-associated cell targets. Rheumatology (Oxford) 2014; 53:1560-9. [PMID: 24402580 PMCID: PMC4135582 DOI: 10.1093/rheumatology/ket414] [Citation(s) in RCA: 144] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 10/29/2013] [Indexed: 12/14/2022] Open
Abstract
Biologic therapies that target pathogenic cytokines such as TNF, IL-1β or IL-6 have greatly improved the treatment of RA. Unfortunately, not all RA patients respond to current biologic therapies and responses are not always maintained, suggesting that there are alternative drivers of RA pathogenesis that might serve as promising therapeutic targets. Discovery of the new Th17 subset of Th cells, and their role in autoimmune disease development, has implicated the proinflammatory IL-12 and IL-17 families of cytokines in RA disease pathogenesis. Members of these cytokine families are elevated in the blood and joints of RA patients and have been shown to remain elevated in patients who do not respond to current biologics. In addition, these cytokines have been shown to play roles in joint destruction and erosion. A new subclass of biologics that target the IL-12 and/or IL-17 signalling pathways are under development. Here we review evidence for a role of Th17 cells as well as IL-12 and IL-17 cytokines in RA pathogenesis as the rationale for a subsequent discussion of the ongoing and completed clinical trials of newly emerging biologic therapies directed at IL-12 or IL-17 pathway inhibition.
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Affiliation(s)
- Daniel E Furst
- Division of Rheumatology, Department of Medicine, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Chapel Allerton Hospital and NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, UK.
| | - Paul Emery
- Division of Rheumatology, Department of Medicine, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Chapel Allerton Hospital and NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, UK.Division of Rheumatology, Department of Medicine, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Chapel Allerton Hospital and NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, UK
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Moran EM, Mastaglia FL. The role of interleukin-17 in immune-mediated inflammatory myopathies and possible therapeutic implications. Neuromuscul Disord 2014; 24:943-52. [PMID: 25052503 DOI: 10.1016/j.nmd.2014.06.432] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 06/03/2014] [Accepted: 06/09/2014] [Indexed: 12/26/2022]
Abstract
The idiopathic inflammatory myopathies are a heterogeneous group of autoimmune muscle disorders with distinct clinical and pathological features and underlying immunopathogenic mechanisms. Traditionally, CD4(+) Th1 cells or CD8(+) cytotoxic effector T cells and type I/II interferons have been primarily implicated in the pathogenesis of the inflammatory myopathies. The presence of IL-17A producing cells in the inflamed muscle tissue of myositis patients and the results of in vitro studies suggest that IL-17A and the Th17 pathway may also have a key role in these diseases. The contribution of IL-17A to other chronic inflammatory and autoimmune diseases has been well established and clinical trials of IL-17A inhibitors are now at an advanced stage. However the precise role of IL-17A in the various forms of myositis and the potential for therapeutic targeting is currently unknown and warrants further investigation.
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Affiliation(s)
- Ellen M Moran
- Institute for Immunology & Infectious Diseases (IIID), Murdoch University, Murdoch, WA, Australia.
| | - Frank L Mastaglia
- Institute for Immunology & Infectious Diseases (IIID), Murdoch University, Murdoch, WA, Australia; Western Australian Neuroscience Research Institute, Centre for Neuromuscular & Neurological Disorders, University of Western Australia, Australia
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Wu Y, Zhu L, Liu L, Zhang J, Peng B. Interleukin-17A stimulates migration of periodontal ligament fibroblasts via p38 MAPK/NF-κB -dependent MMP-1 expression. J Cell Physiol 2014; 229:292-9. [PMID: 23929359 DOI: 10.1002/jcp.24444] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Accepted: 08/01/2013] [Indexed: 12/31/2022]
Abstract
Interleukin-17 (IL-17) is a cytokine secreted predominantly by Th17 cells. Although IL-17 is primarily associated with the induction of tissue inflammation, the other biological functions of IL-17, including its wound-healing functions, have yet to be thoroughly explored. Fibroblast proliferation and migration play essential roles in periodontal wound-healing responses. In this study, we report that IL-17A can increase the migration and expression of matrix metalloproteinase (MMP)-1 in human periodontal ligament (PDL) fibroblasts but has no effect on PDL fibroblast proliferation. IL-17A-induced MMP-1 expression led to cell migration, which was attenuated by pre-treatment with IL-17 receptor neutralizing antibody and small interfering RNA (siRNA) for MMP-1. The IL-17A-induced cell migration was also attenuated by its tissue inhibitor of matrix metalloproteinase (TIMP)-1. In addition, a p38 mitogen-activated protein kinase (MAPK) inhibitor (SB203580) inhibited IL-17A-induced increase of the migration and MMP-1 upregulation of PDL fibroblasts. The involvement of p38 MAPK in IL-17A-induced MMP-1 expression and cell migration was further confirmed by transfection of p38α siRNA. A nuclear factor kappaB (NF-κB) inhibitor (pyrrolidine dithiocarbamate) also suppressed the cell migration and MMP-1 expression enhanced by IL-17A. Moreover, transfection with p38α siRNA inhibited IL-17A-induced NF-κB nuclear translocation as well as NF-κB binding activity. Our results suggest that IL-17A enhances the migration of PDL fibroblasts by increasing MMP-1 expression through the IL-17 receptor, p38 MAPK, and NF-κB signal transduction pathways.
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Affiliation(s)
- Yan Wu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
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Horie S, Robbie SJ, Liu J, Wu WK, Ali RR, Bainbridge JW, Nicholson LB, Mochizuki M, Dick AD, Copland DA. CD200R signaling inhibits pro-angiogenic gene expression by macrophages and suppresses choroidal neovascularization. Sci Rep 2013; 3:3072. [PMID: 24170042 PMCID: PMC3812658 DOI: 10.1038/srep03072] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Accepted: 10/11/2013] [Indexed: 12/23/2022] Open
Abstract
Macrophages are rapidly conditioned by cognate and soluble signals to acquire phenotypes that deliver specific functions during inflammation, wound healing and angiogenesis. Whether inhibitory CD200R signaling regulates pro-angiogenic macrophage phenotypes with the potential to suppress ocular neovascularization is unknown. CD200R-deficient bone marrow derived macrophages (BMMΦ) were used to demonstrate that macrophages lacking this inhibitory receptor exhibit enhanced levels of Vegfa, Arg-1 and Il-1β when stimulated with PGE2 or RPE-conditioned (PGE2-enriched) media. Endothelial tube formation in HUVECs was increased when co-cultured with PGE2-conditioned CD200R−/− BMMΦ, and laser-induced choroidal neovascularization was enhanced in CD200R-deficient mice. In corroboration, signaling through CD200R results in the down-regulation of BMMΦ angiogenic and pro-inflammatory phenotypes. Translational potential of this pathway was investigated in the laser-induced model of choroidal neovascularization. Local delivery of a CD200R agonist mAb to target myeloid infiltrate alters macrophage phenotype and inhibits pro-angiogenic gene expression, which suppresses pathological angiogenesis and CNV development.
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Affiliation(s)
- Shintaro Horie
- 1] Academic Unit of Ophthalmology, School of Clinical Sciences, University of Bristol, Bristol, UK [2] Department of Ophthalmology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan [3]
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Kim SJ, Chen Z, Chamberlain ND, Volin MV, Swedler W, Volkov S, Sweiss N, Shahrara S. Angiogenesis in rheumatoid arthritis is fostered directly by toll-like receptor 5 ligation and indirectly through interleukin-17 induction. ACTA ACUST UNITED AC 2013; 65:2024-36. [PMID: 23666857 DOI: 10.1002/art.37992] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Accepted: 04/23/2013] [Indexed: 02/04/2023]
Abstract
OBJECTIVE To examine the impact of Toll-like receptor 5 (TLR-5) on endothelial cell function in rheumatoid arthritis (RA) and vascularization in collagen-induced arthritis (CIA). METHODS Endothelial cell migration and tube formation assays were used to demonstrate the direct role of TLR-5 ligation in angiogenesis. Mice with CIA were treated with the TLR-5 agonist flagellin to document the effect of TLR-5 ligation in RA pathology. Vascularization in CIA was determined by immunohistochemical analysis and determination of cytokine levels in ankle joints. Spleen Th17 cells and joint interleukin-17 (IL-17) were quantified by fluorescence-activated cell sorting analysis and enzyme-linked immunosorbent assay. The development of Th17 cells induced by TLR-5 ligation was validated in RA peripheral blood mononuclear cells. RESULTS Ligation of TLR-5 to endogenous ligands expressed in RA synovial fluid contributed to endothelial cell infiltration and tube formation. Furthermore, treatment with flagellin after the onset of CIA exacerbated joint inflammation; in contrast, inflammation in control mice remained at a plateau phase. We showed that TLR-5-enhanced disease severity was attributable to Th17 cell differentiation and joint vascularization in CIA. Examination of the underlying mechanism using RA peripheral blood mononuclear cells documented that ligation of TLR-5 in myeloid cells and production of Th17-promoting cytokines were necessary for Th17 cell polarization. Additionally, we demonstrated that blockade of the IL-17 cascade markedly reduced endothelial cell migration activated by flagellin-conditioned medium, suggesting that TLR-5 ligation can mediate RA angiogenesis either directly by attracting endothelial cells or indirectly by fostering Th17 cell development. CONCLUSION Our data demonstrate a novel role for TLR-5 in RA angiogenesis; thus, TLR-5 may be a promising new target for RA treatment.
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Bid HK, Roberts RD, Manchanda PK, Houghton PJ. RAC1: an emerging therapeutic option for targeting cancer angiogenesis and metastasis. Mol Cancer Ther 2013; 12:1925-34. [PMID: 24072884 DOI: 10.1158/1535-7163.mct-13-0164] [Citation(s) in RCA: 198] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Angiogenesis and metastasis are well recognized as processes fundamental to the development of malignancy. Both processes involve the coordination of multiple cellular and chemical activities through myriad signaling networks, providing a mass of potential targets for therapeutic intervention. This review will focus on one master regulator of cell motility, RAC1, and the existing data with regard to its role in cell motility, including particular roles for tumor angiogenesis and invasion/metastasis. We also emphasize the preclinical investigations carried out with RAC1 inhibitors to evaluate the therapeutic potential of this target. Herein, we explore potential future directions as well as the challenges of targeting RAC1 in the treatment of cancer. Recent insights at the molecular and cellular levels are paving the way for a more directed and detailed approach to target mechanisms of RAC1 regulating angiogenesis and metastasis. Understanding these mechanisms may provide insight into RAC1 signaling components as alternative therapeutic targets for tumor angiogenesis and metastasis.
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Affiliation(s)
- Hemant K Bid
- Corresponding Author: Peter J. Houghton, Center for Childhood Cancer, The Research Institute, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205.
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Hu J, Ye H, Zhang D, Liu W, Li M, Mao Y, Lu Y. U87MG glioma cells overexpressing IL-17 acclerate early-stage growth in vivo and cause a higher level of CD31 mRNA expression in tumor tissues. Oncol Lett 2013; 6:993-999. [PMID: 24137452 PMCID: PMC3796409 DOI: 10.3892/ol.2013.1518] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Accepted: 07/30/2013] [Indexed: 01/12/2023] Open
Abstract
Immunological alterations have been reported to be involved in glioma, the most common malignant disease of the adult brain. Our recent study identified higher levels of IL-17 in glioma specimens. The present study investigated the role and possible mechanisms of IL-17 in glioma tumorigenesis. Human IL-17 cDNA was cloned and inserted into the eukaryotic pEGFP-N1 expression vector, which was used to transfect the glioma U87MG cell line, resulting in a high level of IL-17 expression in these cells. The cells were then transfected with IL-17 (pEGFP-N1-IL-17-U87MG) or mock (pEGFP-N1-U87MG) vector or left untransfected (U87MG) and subcutaneously inoculated into the right flank of nude mice. The results revealed that the pEGFP-N1-IL-17-U87MG cells grew more rapidly in the early stages (P<0.05, determined on day 32 post-inoculation compared with the other two groups). Quantitative (q)PCR detected higher mouse (m)CD31 mRNA levels in the IL-17-transfected group (P<0.01) compared with the mock-transfected and untransfected groups. IL-17 transfection altered the mRNA expression of a panel of molecules that are associated with immunity and inflammation in U87MG cells in vitro. An effect of the vector was identified, whereby the mock transfection strongly inhibited cell growth in vivo and dramatically altered the mRNA levels of multiple molecules in the cell culture in vitro compared with the untransfected cells. The present study confirmed that IL-17 overexpression may enhance glioma cell growth in vivo, which may be associated with accelerated angiogenesis. IL-17 overexpression may also alter the cellular mRNA expression of immune-related molecules.
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Affiliation(s)
- Jinhui Hu
- Department of Lab Medicine, Gongli Hospital, Second Military Medicine University, Pudong New Area, Shanghai 200135, P.R. China ; Department of Lab Medicine, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
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Krstić J, Jauković A, Mojsilović S, Ðorđević IO, Trivanović D, Ilić V, Santibañez JF, Bugarski D. In vitro effects of IL-17 on angiogenic properties of endothelial cells in relation to oxygen levels. Cell Biol Int 2013; 37:1162-70. [PMID: 23765637 DOI: 10.1002/cbin.10144] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Accepted: 06/05/2013] [Indexed: 12/20/2022]
Abstract
The aim of this study has been to elucidate how different oxygen levels impact the effects of Interleukin-17 (IL-17) on angiogenic properties of endothelial cells. Two endothelial cell lines, mouse MS-1 and human EA.hy 926, were grown in 20% and 3% O2 and their angiogenic abilities analyzed after IL-17 treatment: proliferation, apoptosis, migration and tubulogenesis. Expression of endothelial nitric oxide synthase (eNOS) and cyclooxygenase-2 (Cox-2) was also measured. Considering EA.hy 926 cell line, hypoxia alone reduced proliferation, survival and migration, but not their ability to form tubules. When cultured at 20% O2 , IL-17 stimulated proliferation, migration and tubulogenesis, whereas a hypoxic environment did not affect their migration and proliferation, but increased their survival and tubulogenic properties. Expression of eNOS and Cox-2 increased by both IL-17 and hypoxia, as well as with their combination. With the MS-1 cell line hypoxia did not affect proliferation, survival, migration and tubule formation. At 20% O2 , IL-17 did not alter their proliferation,but inhibited migration and stimulated tubule formation. At 3% O2 , only the stimulating effect of IL-17 on tubulogenesis was evident. The constitutive expression of eNOS was unaffected by oxygen concentrations or IL-17 supplementation, whereas both IL-17 and hypoxia upregulated Cox-2 expression. Thus the effects of IL-17 on the angiogenic properties of endothelial cells depend on both the cell line used and the oxygen concentration.
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Affiliation(s)
- Jelena Krstić
- Laboratory for Experimental Hematology and Stem Cells, Institute for Medical Research, University of Belgrade, Dr. Subotića 4, P.O. Box 102, 11129, Belgrade, Serbia
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Esnault S, Kelly EAB, Nettenstrom LM, Cook EB, Seroogy CM, Jarjour NN. Human eosinophils release IL-1ß and increase expression of IL-17A in activated CD4+ T lymphocytes. Clin Exp Allergy 2013. [PMID: 23181791 DOI: 10.1111/j.1365-2222.2012.04060.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Differentiation and activation of CD4(+) T cells is controlled by various cytokines produced by innate immune cells. We have shown that eosinophils (EOS) have the potential to influence Th1 and Th2 cytokine generation by CD4(+) cells, but their influence on IL-17A (IL-17) has not been established. OBJECTIVE The purpose of this study is to determine the effect of EOS on IL-17 production by lymphocytes. METHODS Pre-activated CD4(+) T cells were cultured in the presence of either autologous EOS or EOS culture supernatants. Expression of IL-17 was determined by real-time quantitative PCR (qPCR) after 5 h and protein level was measured after 48 h. To determine the effect of allergen-induced airway EOS on IL-17, subjects with mild allergic asthma underwent bronchoscopic segmental bronchoprovocation with allergen (SBP-Ag) after a treatment with an anti-IL-5 neutralizing antibody (mepolizumab) to reduce airway eosinophilia. IL-17 mRNA was measured in bronchoalveolar lavage (BAL) cells by qPCR. RESULTS In vitro, EOS significantly increased IL-17 production by CD4(+) T cells. Addition of exogenous IL-1ß increased expression of IL-17 mRNA by CD4(+) T cells. EOS expressed and released IL-1ß. Furthermore, levels of IL-1ß in EOS supernatants highly correlated with their ability to increase IL-17 expression by CD4(+) T cells, and neutralizing antibody to IL-1ß reduced expression of IL-17 mRNA. In vivo, reduction of EOS in the airway using mepolizumab was associated with diminished IL-17 expression after SBP-Ag. CONCLUSIONS AND CLINICAL RELEVANCE Our data demonstrate that EOS can promote IL-17 production through the release of IL-1ß. Enhanced IL-17 cytokine production is another mechanism by which EOS may participate in pathogenesis of allergic airway inflammation in asthma.
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Affiliation(s)
- S Esnault
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA.
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Hasegawa E, Sonoda KH, Shichita T, Morita R, Sekiya T, Kimura A, Oshima Y, Takeda A, Yoshimura T, Yoshida S, Ishibashi T, Yoshimura A. IL-23-independent induction of IL-17 from γδT cells and innate lymphoid cells promotes experimental intraocular neovascularization. THE JOURNAL OF IMMUNOLOGY 2013; 190:1778-87. [PMID: 23319736 DOI: 10.4049/jimmunol.1202495] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Choroidal neovascularization (CNV) is a characteristic of age-related macular degeneration. Genome-wide association studies have provided evidence that the immune system is involved in the pathogenesis of age-related macular degeneration; however, the role of inflammatory cytokines in CNV has not been established. In this study, we demonstrated that IL-17 had a strong potential for promoting neovascularization in a vascular endothelial growth factor-independent manner in laser-induced experimental CNV in mice. Infiltrated γδT cells and Thy-1(+) innate lymphoid cells, but not Th17 cells, were the main sources of IL-17 in injured eyes. IL-23 was dispensable for IL-17 induction in the eye. Instead, we found that IL-1β and high-mobility group box 1 strongly promoted IL-17 expression by γδT cells. Suppression of IL-1β and high-mobility group box 1, as well as depletion of γδT cells, reduced IL-17 levels and ameliorated experimental CNV. Our findings suggest the existence of a novel inflammatory cytokine network that promotes neovascularization in the eye.
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Affiliation(s)
- Eiichi Hasegawa
- Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo 160-8582, Japan
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Dong W, Zhu P. Functional niche of inflamed synovium for Th17-cell expansion and activation in rheumatoid arthritis: Implication to clinical therapeutics. Autoimmun Rev 2012; 11:844-51. [DOI: 10.1016/j.autrev.2012.02.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Accepted: 02/23/2012] [Indexed: 12/14/2022]
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Rodríguez-Carrio J, Prado C, de Paz B, López P, Gómez J, Alperi-López M, Ballina-García FJ, Suárez A. Circulating endothelial cells and their progenitors in systemic lupus erythematosus and early rheumatoid arthritis patients. Rheumatology (Oxford) 2012; 51:1775-84. [PMID: 22753774 DOI: 10.1093/rheumatology/kes152] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVE The aim of this study was to investigate the endothelial progenitor cell population in SLE and early RA patients and its potential relationships with disease features and cytokine serum levels. METHODS Endothelial progenitor cells (EPCs), mature EPCs (mEPCs) and endothelial cells (ECs) were measured in peripheral blood samples from 83 SLE and 85 early RA patients and 39 healthy controls by flow cytometry on the basis of CD34, VEGF receptor 2 and CD133 expression. Serum levels of IL-1β, IL-6, IL-8, IL-17, VEGF-A, IFN-α, TGF-β and GM-CSF were quantified by immunoassays. Clinical and immunological data were obtained by reviewing clinical histories. RESULTS Circulating EPCs were increased in SLE but not in early RA patients associated with an enhanced CD34(+) bone marrow-progenitor cell release but unrelated to disease features. The amount of mEPCs, however, was significantly higher in SLE patients presenting anti-SSA/SSB antibodies and/or malar rash, whereas the presence of specific autoantibodies was associated with EC counts in early RA and SLE patients. As expected, most cytokines tested were altered in both diseases but, interestingly, IFN-α levels, and to a lesser extent IL-6 and IL-1β, were associated with CD133 loss and increased mEPC number, whereas VEGF and TGF-β seem to exert an opposite effect. CONCLUSION Our results show that high IFN-α levels and/or the presence of disease-specific antibodies may identify a group of SLE patients with increased mEPC and EC counts, and consequently probably defective endothelial repair, thus supporting their use as surrogate biomarkers of endothelial damage and high cardiovascular risk.
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Affiliation(s)
- Javier Rodríguez-Carrio
- Department of Functional Biology, Immunology Area, Faculty of Medicine, University of Oviedo, Oviedo, Spain
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Al-Alwan LA, Chang Y, Baglole CJ, Risse PA, Halayko AJ, Martin JG, Eidelman DH, Hamid Q. Autocrine-regulated airway smooth muscle cell migration is dependent on IL-17-induced growth-related oncogenes. J Allergy Clin Immunol 2012; 130:977-85.e6. [PMID: 22698519 DOI: 10.1016/j.jaci.2012.04.042] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2011] [Revised: 02/21/2012] [Accepted: 04/20/2012] [Indexed: 01/08/2023]
Abstract
BACKGROUND Airway smooth muscle cell (ASMC) migration is one of the proposed mechanisms underlying the increased airway smooth muscle mass seen in airway remodeling of patients with severe asthma. IL-17-related cytokines are a new subgroup of inflammatory mediators that have been suggested to play a role in regulating smooth muscle function. We hypothesized that IL-17-induced chemokine production from smooth muscle cells can contribute to migration of additional smooth muscle cells in the airways of asthmatic patients. OBJECTIVE We sought to investigate the effect of IL-17 on smooth muscle-derived chemokines and to examine the mechanisms involved in their production and contribution to the increase in airway smooth muscle migration. METHODS The effect of IL-17-induced supernatants on human ASMC migration was investigated. IL-17-induced growth-related oncogene (GRO) production and mRNA expression was assessed by using ELISA and RT-PCR, respectively. The direct effect of GROs on ASMC migration and the involvement of the CXCR2 receptor were also examined. RESULTS IL-17-induced supernatants promoted ASMC migration. After IL-17 stimulation, GROs were the most abundant chemokines produced from ASMCs, and blocking their effect by using neutralizing antibodies significantly inhibited ASMC migration. In addition, a combination of recombinant human GRO-α, GRO-β, and GRO-γ was able to promote significant migration of ASMCs that was mediated through the CXCR2 receptor. CONCLUSION These findings suggest that IL-17-induced GROs can be an important mediator of ASMC migration and therefore might contribute to the pathogenesis of airway remodeling in asthmatic patients.
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Affiliation(s)
- Laila A Al-Alwan
- Meakins-Christie Laboratories and the Respiratory Division, Department of Medicine, McGill University, Montreal, Quebec, Canada
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