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Berkhout LC, I'Ami MJ, Kruithof S, Vogelzang EH, Hooijberg F, Hart MHL, Bentlage AEH, Thomas D, Vermeire S, Vidarsson G, Ten Brinke A, Nurmohamed MT, Wolbink GJ, Rispens T. Formation and clearance of TNF-TNF inhibitor complexes during TNF inhibitor treatment. Br J Pharmacol 2024; 181:1165-1181. [PMID: 37859583 DOI: 10.1111/bph.16269] [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: 02/25/2023] [Revised: 06/29/2023] [Accepted: 07/31/2023] [Indexed: 10/21/2023] Open
Abstract
BACKGROUND AND PURPOSE Millions of patients with inflammatory diseases are treated with tumour necrosis factor (TNF) inhibitors (TNFi). Individual treatment response varies, in part related to variable drug clearance. The role of TNF-TNFi complexes in clearance of the different TNFi is controversial. Moreover, mechanistic insight into the structural aspects and biological significance of TNF-TNFi complexes is lacking. We hypothesized a role for Fc-mediated clearance of TNF-TNFi immune complexes. Therefore, we investigated circulating TNF-TNFi complexes upon treatment with certolizumab-lacking Fc tails-in comparison with adalimumab, golimumab, infliximab and etanercept. EXPERIMENTAL APPROACH Drug-tolerant ELISAs were developed and used to quantify TNF during adalimumab, golimumab, etanercept, certolizumab and infliximab treatment in patients with inflammatory arthritis or ulcerative colitis for a maximum follow-up of 1 year. Effects on in vitro TNF production and Fc-mediated uptake of TNF-TNFi complexes were investigated for all five TNFi. KEY RESULTS Circulating TNF concentrations were >20-fold higher during certolizumab treatment compared with adalimumab, reaching up to 23.1 ng·ml-1 . Internalization of TNF-TNFi complexes by macrophages depended on Fc valency, with efficient uptake for the full antibody TNFi (three Fc tails), but little or no uptake for etanercept and certolizumab (one and zero Fc tail, respectively). TNF production was not affected by TNFi. Total TNF load did not affect clearance rate of total TNFi. CONCLUSIONS AND IMPLICATIONS Differences in TNFi structure profoundly affect clearance of TNF, while it is unlikely that TNF itself significantly contributes to target-mediated drug disposition of TNFi.
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Affiliation(s)
- Lea Catharina Berkhout
- Department of Immunopathology, Sanquin Research, Amsterdam, The Netherlands
- Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - Merel Jeanne I'Ami
- Amsterdam Rheumatology and Immunology Center | Reade, Amsterdam, The Netherlands
| | - Simone Kruithof
- Department of Immunopathology, Sanquin Research, Amsterdam, The Netherlands
- Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - Erik Hans Vogelzang
- Amsterdam Rheumatology and Immunology Center | Reade, Amsterdam, The Netherlands
| | - Femke Hooijberg
- Amsterdam Rheumatology and Immunology Center | Reade, Amsterdam, The Netherlands
| | - Margaretha Hendrika Louise Hart
- Department of Immunopathology, Sanquin Research, Amsterdam, The Netherlands
- Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - Arthur Ebel Herman Bentlage
- Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
- Department of Experimental Immunohematology, Sanquin Research, Amsterdam, The Netherlands
| | - Debby Thomas
- Department of Pharmaceutical and Pharmacological Sciences, Laboratory for Therapeutic and Diagnostic Antibodies, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Severine Vermeire
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium
- Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium
- Translational Research in Gastrointestinal Disorders, University Hospitals Leuven, Leuven, Belgium
| | - Gestur Vidarsson
- Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
- Department of Experimental Immunohematology, Sanquin Research, Amsterdam, The Netherlands
| | - Anja Ten Brinke
- Department of Immunopathology, Sanquin Research, Amsterdam, The Netherlands
- Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - Michael Twahier Nurmohamed
- Amsterdam Rheumatology and Immunology Center | Reade, Amsterdam, The Netherlands
- Amsterdam Rheumatology and Immunology Center | VU University Medical Center, Amsterdam, The Netherlands
| | - Gerrit Jan Wolbink
- Department of Immunopathology, Sanquin Research, Amsterdam, The Netherlands
- Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Rheumatology and Immunology Center | Reade, Amsterdam, The Netherlands
| | - Theo Rispens
- Department of Immunopathology, Sanquin Research, Amsterdam, The Netherlands
- Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
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Yang Y, He X, Rojas M, Leung PSC, Gao L. Mechanism-based target therapy in primary biliary cholangitis: opportunities before liver cirrhosis? Front Immunol 2023; 14:1184252. [PMID: 37325634 PMCID: PMC10266968 DOI: 10.3389/fimmu.2023.1184252] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 05/16/2023] [Indexed: 06/17/2023] Open
Abstract
Primary biliary cholangitis (PBC) is an immune-mediated liver disease characterized by cholestasis, biliary injuries, liver fibrosis, and chronic non-suppurative cholangitis. The pathogenesis of PBC is multifactorial and involves immune dysregulation, abnormal bile metabolism, and progressive fibrosis, ultimately leading to cirrhosis and liver failure. Ursodeoxycholic acid (UDCA) and obeticholic acid (OCA) are currently used as first- and second-line treatments, respectively. However, many patients do not respond adequately to UDCA, and the long-term effects of these drugs are limited. Recent research has advanced our understanding the mechanisms of pathogenesis in PBC and greatly facilitated development of novel drugs to target mechanistic checkpoints. Animal studies and clinical trials of pipeline drugs have yielded promising results in slowing disease progression. Targeting immune mediated pathogenesis and anti-inflammatory therapies are focused on the early stage, while anti-cholestatic and anti-fibrotic therapies are emphasized in the late stage of disease, which is characterized by fibrosis and cirrhosis development. Nonetheless, it is worth noting that currently, there exists a dearth of therapeutic options that can effectively impede the progression of the disease to its terminal stages. Hence, there is an urgent need for further research aimed at investigating the underlying pathophysiology mechanisms with potential therapeutic effects. This review highlights our current knowledge of the underlying immunological and cellular mechanisms of pathogenesis in PBC. Further, we also address current mechanism-based target therapies for PBC and potential therapeutic strategies to improve the efficacy of existing treatments.
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Affiliation(s)
- Yushu Yang
- Department of Rheumatology and Immunology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - XiaoSong He
- Division of Rheumatology, Allergy, and Clinical Immunology, University of California, Davis, Davis, CA, United States
| | - Manuel Rojas
- Division of Rheumatology, Allergy, and Clinical Immunology, University of California, Davis, Davis, CA, United States
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Patrick S. C. Leung
- Division of Rheumatology, Allergy, and Clinical Immunology, University of California, Davis, Davis, CA, United States
| | - Lixia Gao
- Department of Rheumatology and Immunology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Division of Rheumatology, Allergy, and Clinical Immunology, University of California, Davis, Davis, CA, United States
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3
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Casasola-LaMacchia A, Seward RJ, Tourdot S, Willetts M, Kruppa G, Agostino MJ, Bergeron G, Ahyi-Amendah N, Ciarla A, Lu Z, Kim HY, Hickling TP, Neubert H. HLAII peptide presentation of infliximab increases when complexed with TNF. Front Immunol 2022; 13:932252. [PMID: 36177046 PMCID: PMC9513746 DOI: 10.3389/fimmu.2022.932252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022] Open
Abstract
CD4+ T-cell activation through recognition of Human Leukocyte Antigen II (HLAII)-presented peptides is a key step in the development of unwanted immune response against biotherapeutics, such as the generation of anti-drug antibodies (ADA). Therefore, the identification of HLAII-presented peptides derived from biotherapeutics is a crucial part of immunogenicity risk assessment and mitigation strategies during drug development. To date, numerous CD4+ T-cell epitopes have been identified by HLAII immunopeptidomics in antibody-based biotherapeutics using either their native or aggregated form. Antibody-target immune complexes have been detected in patients with ADA and are thought to play a role in ADA development by enhancing the presentation of CD4+ T-cell epitopes at the surface of antigen presenting cells (APCs). The aim of this study was to investigate the effect of biotherapeutic antibody-target immune complexes on the HLAII peptide presentation of biotherapeutics in human primary monocyte-derived dendritic cells (DCs). The trimeric tumor necrosis factor (TNF) and its biotherapeutic antagonists infliximab (INFL), adalimumab (ADAL), and a single armed Fab’ were used as a model system. The HLAII immunopeptidome of DCs loaded with antagonists or their immune complexes with TNF was analyzed by trapped ion mobility time-of-flight mass spectrometry (timsTOF MS) leading to the identification of ~ 12,000 unique HLAII-associated peptides per preparation. Anti-TNF sequences were detected at a median of 0.3% of the total immunopeptidome, against a majority background of peptides from endogenous and media-derived proteins. TNF antagonist presentation spanned the variable and constant regions in a widespread manner in both light and heavy chains, consistent with previously discovered HLAII peptides. This investigation extends the collection of observed HLAII peptides from anti-TNF biotherapeutics to include sequences that at least partially span the complementary determining regions (CDRs), such as the LCDR1 for both INFL and ADAL. Although antagonist presentation varied significantly across donors, peptides from both bivalent antagonists INFL and ADAL were more highly presented relative to the Fab’. While TNF immune complexes did not alter overall HLAII presentation, a moderate increase in presentation of a subset of peptide clusters was observed in the case of INFL-TNF, which included HCDR2, HCDR3 and LCDR2 sequences.
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Affiliation(s)
- Andrea Casasola-LaMacchia
- BioMedicine Design, Worldwide Research, Development and Medical, Pfizer Inc., Andover, MA, United States
- *Correspondence: Andrea Casasola-LaMacchia,
| | - Robert Joseph Seward
- BioMedicine Design, Worldwide Research, Development and Medical, Pfizer Inc., Andover, MA, United States
| | - Sophie Tourdot
- BioMedicine Design, Worldwide Research, Development and Medical, Pfizer Inc., Andover, MA, United States
| | | | - Gary Kruppa
- Bruker Daltonics, Billerica, MA, United States
| | | | - Gabrielle Bergeron
- BioMedicine Design, Worldwide Research, Development and Medical, Pfizer Inc., Andover, MA, United States
| | - Nathalie Ahyi-Amendah
- BioMedicine Design, Worldwide Research, Development and Medical, Pfizer Inc., Andover, MA, United States
| | - Andrew Ciarla
- BioMedicine Design, Worldwide Research, Development and Medical, Pfizer Inc., Andover, MA, United States
| | - Zhaojiang Lu
- Analytical Research and Development, Biotherapeutics Pharmaceutical Sciences, Pfizer Inc., Andover, MA, United States
| | - Hai-Young Kim
- Analytical Research and Development, Biotherapeutics Pharmaceutical Sciences, Pfizer Inc., Andover, MA, United States
| | - Timothy P. Hickling
- BioMedicine Design, Worldwide Research, Development and Medical, Pfizer Inc., Andover, MA, United States
| | - Hendrik Neubert
- BioMedicine Design, Worldwide Research, Development and Medical, Pfizer Inc., Andover, MA, United States
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4
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Martínez-Ramos S, Rafael-Vidal C, Pego-Reigosa JM, García S. Monocytes and Macrophages in Spondyloarthritis: Functional Roles and Effects of Current Therapies. Cells 2022; 11:cells11030515. [PMID: 35159323 PMCID: PMC8834543 DOI: 10.3390/cells11030515] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 01/27/2023] Open
Abstract
Spondyloarthritis (SpA) is a family of chronic inflammatory diseases, being the most prevalent ankylosing spondylitis (AS) and psoriatic arthritis (PsA). These diseases share genetic, clinical and immunological features, such as the implication of human leukocyte antigen (HLA) class I molecule 27 (HLA-B27), the inflammation of peripheral, spine and sacroiliac joints and the presence of extra-articular manifestations (psoriasis, anterior uveitis, enthesitis and inflammatory bowel disease). Monocytes and macrophages are essential cells of the innate immune system and are the first line of defence against external agents. In rheumatic diseases including SpA, the frequency and phenotypic and functional characteristics of both cell types are deregulated and are involved in the pathogenesis of these diseases. In fact, monocytes and macrophages play key roles in the inflammatory processes characteristics of SpA. The aim of this review is analysing the characteristics and functional roles of monocytes and macrophages in these diseases, as well as the impact of different current therapies on these cell types.
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Affiliation(s)
- Sara Martínez-Ramos
- Rheumatology & Immuno-Mediated Diseases Research Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36312 Vigo, Spain; (S.M.-R.); (C.R.-V.); (J.M.P.-R.)
- Rheumatology Department, University Hospital Complex of Vigo, 36214 Vigo, Spain
| | - Carlos Rafael-Vidal
- Rheumatology & Immuno-Mediated Diseases Research Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36312 Vigo, Spain; (S.M.-R.); (C.R.-V.); (J.M.P.-R.)
- Rheumatology Department, University Hospital Complex of Vigo, 36214 Vigo, Spain
| | - José M. Pego-Reigosa
- Rheumatology & Immuno-Mediated Diseases Research Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36312 Vigo, Spain; (S.M.-R.); (C.R.-V.); (J.M.P.-R.)
- Rheumatology Department, University Hospital Complex of Vigo, 36214 Vigo, Spain
| | - Samuel García
- Rheumatology & Immuno-Mediated Diseases Research Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36312 Vigo, Spain; (S.M.-R.); (C.R.-V.); (J.M.P.-R.)
- Rheumatology Department, University Hospital Complex of Vigo, 36214 Vigo, Spain
- Correspondence: ; Tel.: +34-986-217-463
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5
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Dharmasiri S, Garrido-Martin EM, Harris RJ, Bateman AC, Collins JE, Cummings JRF, Sanchez-Elsner T. Human Intestinal Macrophages Are Involved in the Pathology of Both Ulcerative Colitis and Crohn Disease. Inflamm Bowel Dis 2021; 27:1641-1652. [PMID: 33570153 PMCID: PMC8522792 DOI: 10.1093/ibd/izab029] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Intestinal macrophages are key immune cells in the maintenance of intestinal immune homeostasis and have a role in the pathogenesis of inflammatory bowel disease (IBD). However, the mechanisms by which macrophages exert a pathological influence in both ulcerative colitis (UC) and Crohn disease (CD) are not yet well understood. METHODS We purified intestinal macrophages from gastrointestinal mucosal biopsies (patients with UC, patients with CD, and healthy donors) and analyzed their transcriptome by RNA sequencing and bioinformatics, confirming results with quantitative polymerase chain reaction and immunohistochemistry. RESULTS Compared with those of healthy donors, intestinal macrophages in patients with UC and with CD showed cellular reprograming of 1287 and 840 dysregulated genes, respectively (false discovery rate ≤ 0.1). The UC and CD intestinal macrophages showed an activated M1 inflammatory phenotype and the downregulation of genes engaged in drug/xenobiotic metabolism. Only macrophages from CD showed, concomitant to an M1 phenotype, a significant enrichment in the expression of M2 and fibrotic and granuloma-related genes. For the first time, we showed (and validated by quantitative polymerase chain reaction and immunohistochemistry) that intestinal macrophages in patients with IBD present both M1 and M2 features, as recently described for tumor-associated macrophages, that affect key pathways for IBD pathology, represented by key markers such as MMP12 (fibrosis), CXCL9 (T-cell attraction), and CD40 (T-cell activation). CONCLUSIONS Our data support the therapeutic targeting of macrophages to maintain remission in IBD but also indicate that a shift toward an M2 program-as proposed by some reports-may not limit the recruitment and activation of T cells because M2 features do not preclude M1 activation in patients with UC or CD and could exacerbate M2-related CD-specific features such as fibrosis and the formation of granulomas.
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Affiliation(s)
- Suranga Dharmasiri
- Clinical and Experimental Sciences, Sir Henry Wellcome Laboratories, University of Southampton School of Medicine, Southampton, United Kingdom
- University Hospital Southampton NHS FT, Southampton, United Kingdom
| | - Eva M Garrido-Martin
- Clinical and Experimental Sciences, Sir Henry Wellcome Laboratories, University of Southampton School of Medicine, Southampton, United Kingdom
- H12O-CNIO Lung Cancer Clinical Research Unit, Fundación Investigación Hospital 12 Octubre i+12/CNIO/CIBERONC. Avda Córdoba s/n, Madrid, Spain
| | - Richard J Harris
- Clinical and Experimental Sciences, Sir Henry Wellcome Laboratories, University of Southampton School of Medicine, Southampton, United Kingdom
- University Hospital Southampton NHS FT, Southampton, United Kingdom
| | - Adrian C Bateman
- University Hospital Southampton NHS FT, Southampton, United Kingdom
| | - Jane E Collins
- Clinical and Experimental Sciences, Sir Henry Wellcome Laboratories, University of Southampton School of Medicine, Southampton, United Kingdom
| | - J R Fraser Cummings
- Clinical and Experimental Sciences, Sir Henry Wellcome Laboratories, University of Southampton School of Medicine, Southampton, United Kingdom
- University Hospital Southampton NHS FT, Southampton, United Kingdom
| | - Tilman Sanchez-Elsner
- Clinical and Experimental Sciences, Sir Henry Wellcome Laboratories, University of Southampton School of Medicine, Southampton, United Kingdom
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6
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Biological Treatments in Inflammatory Bowel Disease: A Complex Mix of Mechanisms and Actions. BIOLOGICS 2021. [DOI: 10.3390/biologics1020012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Inflammatory bowel disease (IBD) is a chronic disease that requires lifelong medication and whose incidence is increasing over the world. There is currently no cure for IBD, and the current therapeutic objective is to control the inflammatory process. Approximately one third of treated patients do not respond to treatment and refractoriness to treatment is common. Therefore, pharmacological treatments, such as monoclonal antibodies, are urgently needed, and new treatment guidelines are regularly published. Due to the extremely important current role of biologics in the therapy of IBD, herein we have briefly reviewed the main biological treatments currently available. In addition, we have focused on the mechanisms of action of the most relevant groups of biological agents in IBD therapy, which are not completely clear but are undoubtfully important for understanding both their therapeutic efficacy and the adverse side effects they may have. Further studies are necessary to better understand the action mechanism of these drugs, which will in turn help us to understand how to improve their efficacy and safety. These studies will hopefully pave the path for a personalized medicine.
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7
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Gong W, Liu P, Zheng T, Wu X, Zhao Y, Ren J. The ubiquitous role of spleen tyrosine kinase (Syk) in gut diseases: From mucosal immunity to targeted therapy. Int Rev Immunol 2021; 41:552-563. [PMID: 34355656 DOI: 10.1080/08830185.2021.1962860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Spleen tyrosine kinase (Syk) is a cytoplasmic non-receptor protein tyrosine kinase expressed in a variety of cells and play crucial roles in signal transduction. Syk mediates downstream signaling by recruiting to the dually phosphorylated immunoreceptor tyrosine-based activation motifs (ITAMs) of the transmembrane adaptor molecule or the receptor chain itself. In gut diseases, Syk is observed to be expressed in intestinal epithelial cells, monocytes/macrophages, dendritic cells and mast cells. Activation of Syk in these cells can modulate intestinal mucosal immune response by promoting inflammatory cytokines and chemokines production, thus regulating gut homeostasis. Due to the restriction of specificity and selectivity for the development of Syk inhibitors, only a few such inhibitors are available in gut diseases, including intestinal ischemia/reperfusion damage, infectious disease, inflammatory bowel disease, etc. The promising outcomes of Syk inhibitors from both preclinical and clinical studies have shown to attenuate the progression of gut diseases thereby indicating a great potential in the development of Syk targeted therapy for treatment of gut diseases. This review depicts the characterization of Syk, summarizes the signal pathways of Syk, and discusses its potential targeted therapy for gut diseases.
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Affiliation(s)
- Wenbin Gong
- School of Medicine, Research Institute of General Surgery, Southeast University, Jinling Hospital, Nanjing, P.R. China
| | - Peizhao Liu
- Research Institute of General Surgery, Jinling Hospital, Nanjing, P.R. China
| | - Tao Zheng
- Department of General Surgery, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Xiuwen Wu
- Research Institute of General Surgery, Jinling Hospital, Nanjing, P.R. China
| | - Yun Zhao
- Department of General Surgery, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Jianan Ren
- School of Medicine, Research Institute of General Surgery, Southeast University, Jinling Hospital, Nanjing, P.R. China.,Research Institute of General Surgery, Jinling Hospital, Nanjing, P.R. China
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Prins MM, Verstockt B, Ferrante M, Vermeire S, Wildenberg ME, Koelink PJ. Monocyte TREM-1 Levels Associate With Anti-TNF Responsiveness in IBD Through Autophagy and Fcγ-Receptor Signaling Pathways. Front Immunol 2021; 12:627535. [PMID: 33790898 PMCID: PMC8005579 DOI: 10.3389/fimmu.2021.627535] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 02/25/2021] [Indexed: 01/14/2023] Open
Abstract
The expression of Triggering Receptor Expressed on Myeloid cells (TREM)-1 has been described as a predictive marker for anti-Tumor Necrosis Factor (TNF)-α monoclonal antibody (mAb) therapy responsiveness in patients with inflammatory bowel disease (IBD). Here we investigated expression of TREM-1 specifically in CD14+ monocytes in relation to anti-TNF response. The pretreatment TREM-1 expression levels of CD14+ monocytes of Crohn's disease (CD) patients were predictive of outcome to anti-TNF mAb therapy, with low TREM-1 expression associated with response to anti-TNF. FACSorting of CD14+ monocytes with different TREM-1 levels showed that differentiation towards regulatory CD206+ M2 type macrophages by anti-TNF was suppressed in CD14+ monocytes with high TREM-1 expression. Activity of the Fcγ-Receptor and autophagy pathway, both necessary for M2 type differentiation and the response to anti-TNF, were decreased in CD14+ monocytes with high expression of TREM-1. We confirmed that the activity of the Fcγ-Receptor pathway was decreased in the CD patients that did not respond to anti-TNF therapy and that it was negatively correlated with TREM-1 expression levels in the CD patient cohort. In conclusion, our results indicate that TREM-1 expression levels in CD14+ monocytes associate with decreased autophagy and FcγR activity resulting in decreased differentiation to M2 type regulatory macrophages upon anti-TNF mAb treatment, which may explain anti-TNF non-response in IBD patients with high expression levels of TREM-1.
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Affiliation(s)
- Marileen M Prins
- Tytgat Institute for Liver and Intestinal Research, Amsterdam UMC, Location AMC, Amsterdam, Netherlands
| | - Bram Verstockt
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium.,Translational Research Center for Gastrointestinal Disorders [TARGID], Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], KU Leuven, Leuven, Belgium
| | - Marc Ferrante
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium.,Translational Research Center for Gastrointestinal Disorders [TARGID], Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], KU Leuven, Leuven, Belgium
| | - Séverine Vermeire
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium.,Translational Research Center for Gastrointestinal Disorders [TARGID], Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], KU Leuven, Leuven, Belgium
| | - Manon E Wildenberg
- Tytgat Institute for Liver and Intestinal Research, Amsterdam UMC, Location AMC, Amsterdam, Netherlands.,Department of Gastroenterology and Hepatology, Amsterdam UMC, Location AMC, Amsterdam, Netherlands
| | - Pim J Koelink
- Tytgat Institute for Liver and Intestinal Research, Amsterdam UMC, Location AMC, Amsterdam, Netherlands
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Jefremow A, Neurath MF. All are Equal, Some are More Equal: Targeting IL 12 and 23 in IBD - A Clinical Perspective. Immunotargets Ther 2020; 9:289-297. [PMID: 33274187 PMCID: PMC7705252 DOI: 10.2147/itt.s282466] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 11/10/2020] [Indexed: 12/19/2022] Open
Abstract
Chronic inflammatory diseases like inflammatory bowel diseases (IBD) or psoriasis represents a worldwide health burden. Researchers provided great achievements in understanding the origin of these diseases leading to improved therapeutic options. The discovery of cytokines like tumor necrosis factor-α or transforming growth factor-β are examples for these efforts. Interleukin 12 (IL 12) and interleukin 23 (IL 23) represent different important cytokines in this regard. They both belong to the interleukin 12 family and are related by sharing the subunit p40. Ustekinumab is an antibody that blocks p40 and thereby interleukins 12 and 23. Trials showed promising results in treating IBD patients with this drug. Consequently, new questions arose about the distinct features of IL 12 and 23. This review focuses on these interleukins regarding their functions in the healthy and inflamed gut and provides an overview about the results from in vitro and in vivo studies as well as clinical trials.
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Affiliation(s)
- André Jefremow
- Department of Medicine 1, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany
| | - Markus F Neurath
- Department of Medicine 1, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany
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Koelink PJ, Bloemendaal FM, Li B, Westera L, Vogels EWM, van Roest M, Gloudemans AK, van 't Wout AB, Korf H, Vermeire S, te Velde AA, Ponsioen CY, D'Haens GRAM, Verbeek JS, Geiger TL, Wildenberg ME, van den Brink GR. Anti-TNF therapy in IBD exerts its therapeutic effect through macrophage IL-10 signalling. Gut 2020; 69:1053-1063. [PMID: 31506328 PMCID: PMC7282553 DOI: 10.1136/gutjnl-2019-318264] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 08/26/2019] [Accepted: 08/30/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Macrophage interleukin (IL)-10 signalling plays a critical role in the maintenance of a regulatory phenotype that prevents the development of IBD. We have previously found that anti-tumour necrosis factor (TNF) monoclonal antibodies act through Fcγ-receptor (FcγR) signalling to promote repolarisation of proinflammatory intestinal macrophages to a CD206+ regulatory phenotype. The role of IL-10 in anti-TNF-induced macrophage repolarisation has not been examined. DESIGN We used human peripheral blood monocytes and mouse bone marrow-derived macrophages to study IL-10 production and CD206+ regulatory macrophage differentiation. To determine whether the efficacy of anti-TNF was dependent on IL-10 signalling in vivo and in which cell type, we used the CD4+CD45Rbhigh T-cell transfer model in combination with several genetic mouse models. RESULTS Anti-TNF therapy increased macrophage IL-10 production in an FcγR-dependent manner, which caused differentiation of macrophages to a more regulatory CD206+ phenotype in vitro. Pharmacological blockade of IL-10 signalling prevented the induction of these CD206+ regulatory macrophages and diminished the therapeutic efficacy of anti-TNF therapy in the CD4+CD45Rbhigh T-cell transfer model of IBD. Using cell type-specific IL-10 receptor mutant mice, we found that IL-10 signalling in macrophages but not T cells was critical for the induction of CD206+ regulatory macrophages and therapeutic response to anti-TNF. CONCLUSION The therapeutic efficacy of anti-TNF in resolving intestinal inflammation is critically dependent on IL-10 signalling in macrophages.
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Affiliation(s)
- Pim J Koelink
- Tytgat Insitute for Liver & Intestinal Research, Amsterdam UMC, Amsterdam, The Netherlands
| | - Felicia M Bloemendaal
- Tytgat Insitute for Liver & Intestinal Research, Amsterdam UMC, Amsterdam, The Netherlands,Department of Gastroenterology and hepatology, Amsterdam UMC, Amsterdam, The Netherlands
| | - Bofeng Li
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Liset Westera
- Tytgat Insitute for Liver & Intestinal Research, Amsterdam UMC, Amsterdam, The Netherlands
| | - Esther W M Vogels
- Tytgat Insitute for Liver & Intestinal Research, Amsterdam UMC, Amsterdam, The Netherlands
| | - Manon van Roest
- Tytgat Insitute for Liver & Intestinal Research, Amsterdam UMC, Amsterdam, The Netherlands
| | - Anouk K Gloudemans
- Janssen Prevention Center of Janssen Vaccines & Prevention BV, Janssen Pharmaceutical Companies of Johnson & Johnson, Leiden, The Netherlands
| | - Angelique B van 't Wout
- Janssen Prevention Center of Janssen Vaccines & Prevention BV, Janssen Pharmaceutical Companies of Johnson & Johnson, Leiden, The Netherlands
| | - Hannelie Korf
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Clinical and Experimental Medicine, KU Leuven, Leuven, Belgium
| | - Séverine Vermeire
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Clinical and Experimental Medicine, KU Leuven, Leuven, Belgium
| | - Anje A te Velde
- Tytgat Insitute for Liver & Intestinal Research, Amsterdam UMC, Amsterdam, The Netherlands
| | - Cyriel Y Ponsioen
- Gastroenterology & Hepatology, Amsterdam UMC, Amsterdam, The Netherlands
| | - Geert RAM D'Haens
- Gastroenterology & Hepatology, Amsterdam UMC, Amsterdam, The Netherlands
| | - J Sjef Verbeek
- Human Genetics, Leids Universitair Medisch Centrum, Leiden, The Netherlands
| | - Terrence L Geiger
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Manon E Wildenberg
- Tytgat Insitute for Liver & Intestinal Research, Amsterdam UMC, Amsterdam, The Netherlands,Gastroenterology & Hepatology, Amsterdam UMC, Amsterdam, The Netherlands
| | - Gijs R van den Brink
- Tytgat Insitute for Liver & Intestinal Research, Amsterdam UMC, Amsterdam, The Netherlands,Gastroenterology & Hepatology, Amsterdam UMC, Amsterdam, The Netherlands,Roche Innovation Center Basel, F Hoffmann-La Roche AG, Basel, Switzerland
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11
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Ridley ML, Fleskens V, Roberts CA, Lalnunhlimi S, Alnesf A, O'Byrne AM, Steel KJA, Povoleri GAM, Sumner J, Lavender P, Taams LS. IKZF3/Aiolos Is Associated with but Not Sufficient for the Expression of IL-10 by CD4 + T Cells. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2020; 204:2940-2948. [PMID: 32321757 PMCID: PMC7231851 DOI: 10.4049/jimmunol.1901283] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 04/01/2020] [Indexed: 01/10/2023]
Abstract
The expression of anti-inflammatory IL-10 by CD4+ T cells is indispensable for immune homeostasis, as it allows T cells to moderate their effector function. We previously showed that TNF-α blockade during T cell stimulation in CD4+ T cell/monocyte cocultures resulted in maintenance of IL-10-producing T cells and identified IKZF3 as a putative regulator of IL-10. In this study, we tested the hypothesis that IKZF3 is a transcriptional regulator of IL-10 using a human CD4+ T cell-only culture system. IL-10+ CD4+ T cells expressed the highest levels of IKZF3 both ex vivo and after activation compared with IL-10-CD4+ T cells. Pharmacological targeting of IKZF3 with the drug lenalidomide showed that IKZF3 is required for anti-CD3/CD28 mAb-mediated induction of IL-10 but is dispensable for ex vivo IL-10 expression. However, overexpression of IKZF3 was unable to upregulate IL-10 at the mRNA or protein level in CD4+ T cells and did not drive the transcription of the IL10 promoter or putative local enhancer constructs. Collectively, these data indicate that IKZF3 is associated with but not sufficient for IL-10 expression in CD4+ T cells.
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Affiliation(s)
- Michael L Ridley
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology and Microbial Sciences, King's College London, London SE1 1UL, United Kingdom
| | - Veerle Fleskens
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology and Microbial Sciences, King's College London, London SE1 1UL, United Kingdom
| | - Ceri A Roberts
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology and Microbial Sciences, King's College London, London SE1 1UL, United Kingdom
| | - Sylvine Lalnunhlimi
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology and Microbial Sciences, King's College London, London SE1 1UL, United Kingdom
| | - Aldana Alnesf
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology and Microbial Sciences, King's College London, London SE1 1UL, United Kingdom
| | - Aoife M O'Byrne
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology and Microbial Sciences, King's College London, London SE1 1UL, United Kingdom
| | - Kathryn J A Steel
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology and Microbial Sciences, King's College London, London SE1 1UL, United Kingdom
| | - Giovanni A M Povoleri
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology and Microbial Sciences, King's College London, London SE1 1UL, United Kingdom
| | - Jonathan Sumner
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King's College London, Guy's Hospital, London SE1 9RT, United Kingdom; and
| | - Paul Lavender
- MRC and Asthma UK Centre in Allergic Mechanisms of Asthma, Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, Guy's Hospital, London SE1 9RT, United Kingdom
| | - Leonie S Taams
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology and Microbial Sciences, King's College London, London SE1 1UL, United Kingdom;
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12
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Caër C, Wick MJ. Human Intestinal Mononuclear Phagocytes in Health and Inflammatory Bowel Disease. Front Immunol 2020; 11:410. [PMID: 32256490 PMCID: PMC7093381 DOI: 10.3389/fimmu.2020.00410] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 02/21/2020] [Indexed: 12/18/2022] Open
Abstract
Inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis, is a complex immune-mediated disease of the gastrointestinal tract that increases morbidity and negatively influences the quality of life. Intestinal mononuclear phagocytes (MNPs) have a crucial role in maintaining epithelial barrier integrity while controlling pathogen invasion by activating an appropriate immune response. However, in genetically predisposed individuals, uncontrolled immune activation to intestinal flora is thought to underlie the chronic mucosal inflammation that can ultimately result in IBD. Thus, MNPs are involved in fine-tuning mucosal immune system responsiveness and have a critical role in maintaining homeostasis or, potentially, the emergence of IBD. MNPs include monocytes, macrophages and dendritic cells, which are functionally diverse but highly complementary. Despite their crucial role in maintaining intestinal homeostasis, specific functions of human MNP subsets are poorly understood, especially during diseases such as IBD. Here we review the current understanding of MNP ontogeny, as well as the recently identified human intestinal MNP subsets, and discuss their role in health and IBD.
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Affiliation(s)
- Charles Caër
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Mary Jo Wick
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
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13
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Berkhout LC, l'Ami MJ, Ruwaard J, Hart MH, Heer POD, Bloem K, Nurmohamed MT, van Vollenhoven RF, Boers M, Alvarez DF, Smith CH, Wolbink GJ, Rispens T. Dynamics of circulating TNF during adalimumab treatment using a drug-tolerant TNF assay. Sci Transl Med 2020; 11:11/477/eaat3356. [PMID: 30700574 DOI: 10.1126/scitranslmed.aat3356] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 09/08/2018] [Accepted: 12/19/2018] [Indexed: 12/24/2022]
Abstract
Patients with rheumatoid arthritis (RA) can be successfully treated with tumor necrosis factor (TNF) inhibitors, including the monoclonal antibody adalimumab. Once in remission, a proportion of patients can successfully discontinue treatment, indicating that blocking TNF is no longer required for disease control. To explore the dynamics of circulating TNF during adalimumab treatment, we developed a competition enzyme-linked immunosorbent assay that can quantify TNF in the presence of large amounts of TNF inhibitor, i.e., a "drug-tolerant" assay. In 193 consecutive adalimumab-treated patients with RA, we demonstrated that circulating TNF increased in average of >50-fold upon treatment and reached a stable concentration in time for most patients. A similar increase in TNF was found in 30 healthy volunteers after one dose of adalimumab. This implies that TNF in circulation during anti-TNF treatment is not primarily associated with disease activity. During treatment, TNF was in complex with adalimumab and could be recovered as inactive 3:1 adalimumab-TNF complexes. No quantitative association was found between TNF and adalimumab concentrations. Low TNF concentrations at week 4 were associated with a higher frequency of antidrug antibodies (ADAs) at subsequent time points, less frequent methotrexate use at baseline, and less frequent remission after 52 weeks. Also in healthy volunteers, early low TNF concentrations are associated with ADAs. In conclusion, longitudinal TNF concentrations are mostly stable during adalimumab treatment and may therefore not predict successful treatment discontinuation. However, early low TNF is strongly associated with ADA formation and may be used as timely predictor of nonresponse toward adalimumab treatment.
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Affiliation(s)
- Lea C Berkhout
- Department of Immunopathology, Sanquin Research, 1066 CX Amsterdam, Netherlands, and Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, Netherlands
| | - Merel J l'Ami
- Amsterdam Rheumatology and immunology Center, Reade, 1056 AB Amsterdam, Netherlands
| | - Jill Ruwaard
- Amsterdam Rheumatology and immunology Center, Reade, 1056 AB Amsterdam, Netherlands
| | - Margreet H Hart
- Department of Immunopathology, Sanquin Research, 1066 CX Amsterdam, Netherlands, and Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, Netherlands
| | - Pleuni Ooijevaar-de Heer
- Department of Immunopathology, Sanquin Research, 1066 CX Amsterdam, Netherlands, and Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, Netherlands
| | - Karien Bloem
- Department of Immunopathology, Sanquin Research, 1066 CX Amsterdam, Netherlands, and Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, Netherlands
| | - Michael T Nurmohamed
- Amsterdam Rheumatology and immunology Center, Reade, 1056 AB Amsterdam, Netherlands.,Amsterdam Rheumatology and Immunology Center, Amsterdam UMC, VU University Medical Center, 1081 HV Amsterdam, Netherlands
| | - Ronald F van Vollenhoven
- Amsterdam Rheumatology and immunology Center, Reade, 1056 AB Amsterdam, Netherlands.,Amsterdam Rheumatology and Immunology Center, Amsterdam UMC, VU University Medical Center, 1081 HV Amsterdam, Netherlands.,Amsterdam Rheumatology and Immunology Center, Amsterdam UMC, Academic Medical Center, 1105 AZ Amsterdam, Netherlands
| | - Maarten Boers
- Amsterdam Rheumatology and Immunology Center, Amsterdam UMC, VU University Medical Center, 1081 HV Amsterdam, Netherlands.,Department of Epidemiology and Biostatistics, VU University Medical Center, 1081 HV Amsterdam, Netherlands
| | | | - Catherine H Smith
- St. John's Institute of Dermatology, Division of Genetics and Molecular Medicine, Kings College London, SE1 9RT London, UK
| | - Gerrit J Wolbink
- Department of Immunopathology, Sanquin Research, 1066 CX Amsterdam, Netherlands, and Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, Netherlands.,Amsterdam Rheumatology and immunology Center, Reade, 1056 AB Amsterdam, Netherlands
| | - Theo Rispens
- Department of Immunopathology, Sanquin Research, 1066 CX Amsterdam, Netherlands, and Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, Netherlands.
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14
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Li Y, Yu X, Ma Y, Hua S. IL-23 and dendritic cells: What are the roles of their mutual attachment in immune response and immunotherapy? Cytokine 2019; 120:78-84. [PMID: 31029042 DOI: 10.1016/j.cyto.2019.02.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 02/21/2019] [Accepted: 02/22/2019] [Indexed: 12/12/2022]
Abstract
Interleukin-23 (IL-23) is a cytokine that is composed of the subunits p19 and p40, while its receptor (IL-23R) consists of two subunits, that is, IL-23Rα and IL-12Rβ1. The interaction between IL-23 and IL-23R is necessary for exerting cardinal biological effects upon certain cell types, including promotion of memory T cell proliferation and Th17 cell-mediated IL-17 secretion. Accordingly, dendritic cells (DCs) are one of the main sources for IL-23 secretion. Interestingly, IL-23R is also present on the DC plasma membrane, suggesting that IL-23 potentially acts on DCs via an autocrine manner. In this review, we have summarized a variety of IL-23-mediated effects on the intracellular signaling pathways such as Janus kinase 2, tyrosine kinase 2, signal transducer and activator of transcription (STAT), mitogen-activated protein kinase signaling, and so forth, which may underlie numerous processes such as DC maturation, antigen presentation, T cell proliferation/activation, and cytokine secretion, which may be implicated in many immune-related diseases through IL-23/DC interactions. Accordingly, these signaling pathways are extensively involved in the pathogenesis and progression of numerous diseases, including autoimmune disease (e.g., atopic dermatitis, asthma, and multiple sclerosis) and infection (e.g., bacterial, fungal, and viral infections). Taken together, they are potentially applicable to novel but promising strategies for treating numerous diseases associated with the mutual attachment of IL-23 and DCs.
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Affiliation(s)
- Yanchun Li
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, 130 021 Jinlin, China
| | - Xiuhua Yu
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, 130 021 Jinlin, China
| | - Yucong Ma
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, 130 021 Jinlin, China
| | - Shucheng Hua
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, 130 021 Jinlin, China.
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15
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Castro-Dopico T, Clatworthy MR. IgG and Fcγ Receptors in Intestinal Immunity and Inflammation. Front Immunol 2019; 10:805. [PMID: 31031776 PMCID: PMC6473071 DOI: 10.3389/fimmu.2019.00805] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 03/26/2019] [Indexed: 12/15/2022] Open
Abstract
Fcγ receptors (FcγR) are cell surface glycoproteins that mediate cellular effector functions of immunoglobulin G (IgG) antibodies. Genetic variation in FcγR genes can influence susceptibility to a variety of antibody-mediated autoimmune and inflammatory disorders, including systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA). More recently, however, genetic studies have implicated altered FcγR signaling in the pathogenesis of inflammatory bowel disease (IBD), a condition classically associated with dysregulated innate and T cell immunity. Specifically, a variant of the activating receptor, FcγRIIA, with low affinity for IgG, confers protection against the development of ulcerative colitis, a subset of IBD, leading to a re-evaluation of the role of IgG and FcγRs in gastrointestinal tract immunity, an organ system traditionally associated with IgA. In this review, we summarize our current understanding of IgG and FcγR function at this unique host-environment interface, from the pathogenesis of colitis and defense against enteropathogens, its contribution to maternal-fetal cross-talk and susceptibility to cancer. Finally, we discuss the therapeutic implications of this information, both in terms of how FcγR signaling pathways may be targeted for the treatment of IBD and how FcγR engagement may influence the efficacy of therapeutic monoclonal antibodies in IBD.
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Affiliation(s)
- Tomas Castro-Dopico
- Molecular Immunity Unit, MRC Laboratory of Molecular Biology, Department of Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Menna R. Clatworthy
- Molecular Immunity Unit, MRC Laboratory of Molecular Biology, Department of Medicine, University of Cambridge, Cambridge, United Kingdom
- NIHR Cambridge Biomedical Research CentreCambridge, United Kingdom
- Cellular Genetics, Wellcome Sanger Institute, Hinxton, United Kingdom
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16
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Neurath MF. IL-23 in inflammatory bowel diseases and colon cancer. Cytokine Growth Factor Rev 2018; 45:1-8. [PMID: 30563755 DOI: 10.1016/j.cytogfr.2018.12.002] [Citation(s) in RCA: 117] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 12/11/2018] [Indexed: 02/07/2023]
Abstract
Studies in recent years have identified a pivotal role of the cytokine IL-23 in the pathogenesis of inflammatory bowel diseases (IBD: Crohn´s disease, ulcerative colitis) and colitis-associated colon cancer. Genetic studies revealed that subgroups of IBD patients have single nucleotide polymorphisms in the IL-23R gene suggesting that IL-23R signaling affects disease susceptibility. Furthermore, increased production of IL-23 by macrophages, dendritic cells or granulocytes has been observed in various mouse models of colitis, colitis-associated cancer and IBD patients. Moreover, in several murine models of colitis, suppression of IL-12/IL-23 p40, IL-23 p19 or IL-23R function led to marked suppression of gut inflammation. This finding was associated with reduced activation of IL-23 target cells such as T helper 17 cells, innate lymphoid cells type 3, granulocytes and natural killer cells as well as with impaired production of proinflammatory cytokines. Based on these findings, targeting of IL-23 emerges as important concept for suppression of gut inflammation and inflammation-associated cancer growth. Consistently, neutralizing antibodies against IL-12/IL-23 p40 and IL-23 p19 have been successfully used in clinical trials for therapy of Crohn´s disease and pilot studies in ulcerative colitis are ongoing. These findings underline the crucial regulatory role of IL-23 in chronic intestinal inflammation and colitis-associated cancer and indicate that therapeutic strategies aiming at IL-23 blockade may be of key relevance for future therapy of IBD patients.
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Affiliation(s)
- Markus F Neurath
- Department of Medicine 1, University of Erlangen-Nürnberg, Kussmaul Research Campus & Ludwig Demling Endoscopy Center of Excellence, Erlangen, Germany; Deutsches Zentrum für Immuntherapie (DZI), University of Erlangen-Nürnberg, Germany.
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17
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Bain CC, Schridde A. Origin, Differentiation, and Function of Intestinal Macrophages. Front Immunol 2018; 9:2733. [PMID: 30538701 PMCID: PMC6277706 DOI: 10.3389/fimmu.2018.02733] [Citation(s) in RCA: 189] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Accepted: 11/06/2018] [Indexed: 12/12/2022] Open
Abstract
Macrophages are increasingly recognized as essential players in the maintenance of intestinal homeostasis and as key sentinels of the intestinal immune system. However, somewhat paradoxically, they are also implicated in chronic pathologies of the gastrointestinal tract, such as inflammatory bowel disease (IBD) and are therefore considered potential targets for novel therapies. In this review, we will discuss recent advances in our understanding of intestinal macrophage heterogeneity, their ontogeny and the potential factors that regulate their origin. We will describe how the local environment of the intestine imprints the phenotypic and functional identity of the macrophage compartment, and how this changes during intestinal inflammation and infection. Finally, we highlight key outstanding questions that should be the focus of future research.
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Affiliation(s)
- Calum C Bain
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, United Kingdom
| | - Anika Schridde
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, United Kingdom
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