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Karpus ON, Hsiao CC, de Kort H, Tak PP, Hamann J. Intracellular delivery of poly(I:C) induces apoptosis of fibroblast-like synoviocytes via an unknown dsRNA sensor. Biochem Biophys Res Commun 2016; 477:343-9. [PMID: 27343555 DOI: 10.1016/j.bbrc.2016.06.104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 06/21/2016] [Indexed: 11/25/2022]
Abstract
Fibroblast-like synoviocytes (FLS) express functional membranous and cytoplasmic sensors for double-stranded (ds)RNA. Notably, FLS undergo apoptosis upon transfection with the synthetic dsRNA analog poly(I:C). We here studied the mechanism of intracellular poly(I:C) recognition and subsequent cell death in FLS. FLS responded similarly to poly(I:C) or 3pRNA transfection; however, only intracellular delivery of poly(I:C) induced significant cell death, accompanied by upregulation of pro-apoptotic proteins Puma and Noxa, caspase 3 cleavage, and nuclear segregation. Knockdown of the DExD/H-box helicase MDA5 did not affect the response to intracellular poly(I:C); in contrast, knockdown of RIG-I abrogated the response to 3pRNA. Knockdown of the downstream adaptor proteins IPS, STING, and TRIF or inhibition of TBK1 did not affect the response to intracellular poly(I:C), while knockdown of IFNAR blocked intracellular poly(I:C)-mediated signaling and cell death. We conclude that a so far unknown intracellular sensor recognizes linear dsRNA and induces apoptosis in FLS.
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Ramos MI, Teunissen MBM, Helder B, Aarrass S, de Hair MJH, van Kuijk AW, Gerlag DM, Tak PP, Lebre MC. Reduced CLEC9A expression in synovial tissue of psoriatic arthritis patients after adalimumab therapy. Rheumatology (Oxford) 2016; 55:1575-84. [DOI: 10.1093/rheumatology/kew204] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Indexed: 12/14/2022] Open
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Ramwadhdoebe TH, Hähnlein J, van Kuijk BJ, Choi IY, van Boven LJ, Gerlag DM, Tak PP, van Baarsen LG. Human lymph-node CD8(+) T cells display an altered phenotype during systemic autoimmunity. Clin Transl Immunology 2016; 5:e67. [PMID: 27195110 PMCID: PMC4855272 DOI: 10.1038/cti.2016.8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 02/23/2016] [Accepted: 02/23/2016] [Indexed: 12/24/2022] Open
Abstract
Although many studies are focused on auto-reactive CD4(+) T cells, the precise role of CD8(+) T cells in autoimmunity is poorly understood. The objective of this study is to provide more insight into the phenotype and function CD8(+) T cells during the development of autoimmune disease by studying CD8(+) T cells in human lymph-node biopsies and peripheral blood obtained during the earliest phases of rheumatoid arthritis (RA). Here, we show that lymphoid pro-inflammatory CD8(+) T cells exhibit a less-responsive phenotype already during the earliest phases of autoimmunity compared with healthy individuals. We found an increase in CD8(+) memory T cells in lymphoid tissue during the earliest phases of autoimmunity, even before clinical onset of RA, accompanied by an increased frequency of non-circulating or recently activated (CD69(+)) CD8(+) T cells in lymphoid tissue and peripheral blood. Importantly, lymphoid pro-inflammatory CD8(+)IL-17A(+) T cells displayed a decreased capacity of cytokine production, which was related to disease activity in early RA patients. In addition, a decreased frequency of regulatory CD8(+)IL-10(+) T cells in peripheral blood was also related to disease activity in early RA patients. Our results suggest that different CD8(+) T-cell subsets are affected already during the earliest phases of systemic autoimmunity.
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Garcia S, Hartkamp LM, Malvar-Fernandez B, van Es IE, Lin H, Wong J, Long L, Zanghi JA, Rankin AL, Masteller EL, Wong BR, Radstake TRDJ, Tak PP, Reedquist KA. Colony-stimulating factor (CSF) 1 receptor blockade reduces inflammation in human and murine models of rheumatoid arthritis. Arthritis Res Ther 2016; 18:75. [PMID: 27036883 PMCID: PMC4818474 DOI: 10.1186/s13075-016-0973-6] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 03/14/2016] [Indexed: 12/19/2022] Open
Abstract
Background CSF-1 or IL-34 stimulation of CSF1R promotes macrophage differentiation, activation and osteoclastogenesis, and pharmacological inhibition of CSF1R is beneficial in animal models of arthritis. The objective of this study was to determine the relative contributions of CSF-1 and IL-34 signaling to CSF1R in RA. Methods CSF-1 and IL-34 were detected by immunohistochemical and digital image analysis in synovial tissue from 15 biological-naïve rheumatoid arthritis (RA) , 15 psoriatic arthritis (PsA) and 7 osteoarthritis (OA) patients . Gene expression in CSF-1- and IL-34-differentiated human macrophages was assessed by FACS analysis and quantitative PCR. RA synovial explants were incubated with CSF-1, IL-34, control antibody (Ab), or neutralizing/blocking Abs targeting CSF-1, IL-34, or CSF1R. The effect of a CSF1R-blocking Ab was examined in murine collagen-induced arthritis (CIA). Results CSF-1 (also known as M-CSF) and IL-34 expression was similar in RA and PsA synovial tissue, but lower in controls (P < 0.05). CSF-1 expression was observed in the synovial sublining, and IL-34 in the sublining and the intimal lining layer. CSF-1 and IL-34 differentially regulated the expression of 17 of 336 inflammation-associated genes in macrophages, including chemokines, extra-cellular matrix components, and matrix metalloproteinases. Exogenous CSF-1 or IL-34, or their independent neutralization, had no effect on RA synovial explant IL-6 production. Anti-CSF1R Ab significantly reduced IL-6 and other inflammatory mediator production in RA synovial explants, and paw swelling and joint destruction in CIA. Conclusions Simultaneous inhibition of CSF1R interactions with both CSF-1 and IL-34 suppresses inflammatory activation of RA synovial tissue and pathology in CIA, suggesting a novel therapeutic strategy for RA. Electronic supplementary material The online version of this article (doi:10.1186/s13075-016-0973-6) contains supplementary material, which is available to authorized users.
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Brekelmans MP, Fens N, Brinkman P, Bos LD, Sterk PJ, Tak PP, Gerlag DM. Smelling the Diagnosis: The Electronic Nose as Diagnostic Tool in Inflammatory Arthritis. A Case-Reference Study. PLoS One 2016; 11:e0151715. [PMID: 26982569 PMCID: PMC4794231 DOI: 10.1371/journal.pone.0151715] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 03/03/2016] [Indexed: 12/21/2022] Open
Abstract
Objective To investigate whether exhaled breath analysis using an electronic nose can identify differences between inflammatory joint diseases and healthy controls. Methods In a cross-sectional study, the exhaled breath of 21 rheumatoid arthritis (RA) and 18 psoriatic arthritis (PsA) patients with active disease was compared to 21 healthy controls using an electronic nose (Cyranose 320; Smiths Detection, Pasadena, CA, USA). Breathprints were analyzed with principal component analysis, discriminant analysis, and area under curve (AUC) of receiver operating characteristics (ROC) curves. Volatile organic compounds (VOCs) were identified by gas chromatography and mass spectrometry (GC-MS), and relationships between breathprints and markers of disease activity were explored. Results Breathprints of RA patients could be distinguished from controls with an accuracy of 71% (AUC 0.75, 95% CI 0.60–0.90, sensitivity 76%, specificity 67%). Breathprints from PsA patients were separated from controls with 69% accuracy (AUC 0.77, 95% CI 0.61–0.92, sensitivity 72%, specificity 71%). Distinction between exhaled breath of RA and PsA patients exhibited an accuracy of 69% (AUC 0.72, 95% CI 0.55–0.89, sensitivity 71%, specificity 72%). There was a positive correlation in RA patients of exhaled breathprints with disease activity score (DAS28) and number of painful joints. GC-MS identified seven key VOCs that significantly differed between the groups. Conclusions Exhaled breath analysis by an electronic nose may play a role in differential diagnosis of inflammatory joint diseases. Data from this study warrant external validation.
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Maijer KI, Gerlag DM, Tak PP. Prevalence of Anti-Citrullinated Protein Antibodies and IgM Rheumatoid Factor in First-Degree Relatives of Dutch Rheumatoid Arthritis Patients. Arthritis Rheumatol 2016; 67:3324-6. [PMID: 26315149 DOI: 10.1002/art.39412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 08/20/2015] [Indexed: 01/07/2023]
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Perez SG, Malvar-Fernández B, Newsom SP, Tang MW, Radstake TR, Baeten DL, Tak PP, Reedquist KA. A7.09 Class 3 semaphorins modulate the invasive capacity of rheumatoid arthritis fibroblast-like synoviocytes. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-209124.140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Koopman FA, Tang MW, Vermeij J, de Hair MJ, Choi IY, Vervoordeldonk MJ, Gerlag DM, Karemaker JM, Tak PP. Autonomic Dysfunction Precedes Development of Rheumatoid Arthritis: A Prospective Cohort Study. EBioMedicine 2016; 6:231-237. [PMID: 27211565 PMCID: PMC4856742 DOI: 10.1016/j.ebiom.2016.02.029] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 02/02/2016] [Accepted: 02/16/2016] [Indexed: 12/11/2022] Open
Abstract
Background Heart rate variability (HRV) is a validated method to establish autonomic nervous system (ANS) activity. Rheumatoid arthritis (RA) is accompanied by ANS imbalance. We hypothesized that ANS dysfunction may precede the development of RA, which would suggest that it plays a role in its etiopathogenesis. Methods First, we assessed HRV parameters in supine (resting) and upright (active) position in healthy subjects (HS, n = 20), individuals at risk of developing arthritis (AR subjects, n = 50) and RA patients (RA, n = 20). Next, we measured resting heart rate (RHR), a parasympathetic HRV parameter, in an independent prospective cohort of AR subjects (n = 45). We also evaluated expression levels of the parasympathetic nicotinic acetylcholine receptor type 7 (α7nAChR) on circulating monocytes. Findings Both AR subjects (68 beats per minute (bpm), interquartile range (IQR) 68–73) and RA patients (68 bpm, IQR 62–76) had a significantly higher RHR compared to HS (60 bpm, IQR 56–63). RHR was significantly higher at baseline in individuals who subsequently developed arthritis. Expression levels of α7nAChR were lower in AR subjects with RHR ≥ 70 bpm compared to those with RHR < 70 bpm, consistent with reduced activity of the parasympathetic cholinergic anti-inflammatory pathway. Interpretation These data support the notion that autonomic dysfunction precedes the development of RA. Individuals at risk of developing RA show autonomic dysfunction similar to established RA patients. Autonomic dysfunction is a predictor of development of arthritis in subjects at risk of RA, suggesting a role in its etiopathogenesis.
The autonomous nervous system is a neurological control system that acts largely unconsciously and regulates a variety of bodily functions. We found that dysfunction of this system may precede and predict the development of rheumatoid arthritis (RA), a chronic inflammatory disease with great unmet need. These findings provide important insights into the changes in the nervous system contributing to the development of this condition. They also open up the perspective of potential measures aimed at prevention of RA by restoring the balance in the nervous system before arthritis develops, which would have major implications for patients as well as society.
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van Vollenhoven RF, Wax S, Li Y, Tak PP. Safety and efficacy of atacicept in combination with rituximab for reducing the signs and symptoms of rheumatoid arthritis: a phase II, randomized, double-blind, placebo-controlled pilot trial. Arthritis Rheumatol 2016; 67:2828-36. [PMID: 26137975 PMCID: PMC5057363 DOI: 10.1002/art.39262] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 06/23/2015] [Indexed: 01/14/2023]
Abstract
Objective To explore the safety and tolerability of atacicept in combination with rituximab in patients with active rheumatoid arthritis (RA) receiving rituximab re‐treatment. Methods In this randomized, double‐blind, placebo‐controlled pilot trial, 2 infusions (1,000 mg per infusion) of intravenous rituximab, given 2 weeks apart, were followed by once‐weekly subcutaneous injections of 150 mg atacicept or placebo for 25 weeks. Primary end points were the nature, incidence, and severity of adverse events (AEs). Secondary end points were the effects on peripheral blood B cells, disease activity biomarkers, and American College of Rheumatology 20% (ACR20), 50% (ACR50), and 70% (ACR70) response rates. Results Eighteen patients were randomized to receive atacicept and 9 to receive placebo. AEs occurred in 17 atacicept‐treated patients (94.4%) and in all 9 placebo‐treated patients (100%). There were no infection‐related serious adverse events. Hypersensitivity and injection site reactions were more common, and more patients withdrew due to AEs, in the atacicept group. Median reductions in Ig levels from baseline to week 32 were greater with atacicept (median change in IgG −31.2%, IgM −60.9%, and IgA −56.4%) than with placebo (median change in IgG −4.4%, IgM −15.9%, and IgA −8.2%). Peripheral B cell numbers remained low in all patients after rituximab‐mediated B cell depletion, limiting comparison of time to recovery between treatment groups. There were no between‐group differences in ACR20, ACR50, and ACR70 response rates. Conclusion In this exploratory trial, atacicept in combination with rituximab showed no new safety issues. Peripheral B cell counts remained too low to determine whether atacicept delayed B cell re‐expansion following rituximab‐mediated depletion. Despite clear biologic effects, adding atacicept to rituximab in patients with active RA was not associated with clinical benefit.
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Hähnlein JS, Rodriguez-Carrio J, Ramwadhdoebe TH, Semmelink JF, Choi IY, van Lienden KP, Maas M, Gerlag DM, Tak PP, Geijtenbeek TBH, van Baarsen LGM. A1.19 Altered distribution of innate lymphoid cell populations in human LYMPH node biopsies obtained during the earliest phases of systemic autoimmunity. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-209124.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Hähnlein J, Ramwadhdoebe TH, Semmelink JF, Safy M, van Lienden KP, Maas M, Gerlag DM, Tak PP, Geijtenbeek TBH, van Baarsen LGM. A3.06 Distinct expression pattern of peripheral tissue-restricted antigens in human LYMPH node stromal cells during the earliest phases of rheumatoid arthritis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-209124.83] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Maijer KI, Neumann E, Müller-Ladner U, Drop DACAD, Ramwadhdoebe TH, Choi IYK, Gerlag DM, de Hair MJH, Tak PP. Serum Vaspin Levels Are Associated with the Development of Clinically Manifest Arthritis in Autoantibody-Positive Individuals. PLoS One 2015; 10:e0144932. [PMID: 26670468 PMCID: PMC4682927 DOI: 10.1371/journal.pone.0144932] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 11/25/2015] [Indexed: 12/26/2022] Open
Abstract
Objectives We have previously shown that overweight may increase the risk of developing rheumatoid arthritis (RA) in autoantibody positive individuals. Adipose tissue could contribute to the development of RA by production of various bioactive peptides. Therefore, we examined levels of adipokines in serum and synovial tissue of subjects at risk of RA. Methods Fifty-one individuals positive for immunoglobulin M rheumatoid factor (IgM-RF) and/or anti-citrullinated protein antibodies (ACPA), without arthritis, were included in this prospective study. Levels of adiponectin, vaspin, resistin, leptin, chemerin and omentin were determined in baseline fasting serum samples (n = 27). Synovial tissue was obtained by arthroscopy at baseline and we examined the expression of adiponectin, resistin and visfatin by immunohistochemistry. Results The development of clinically manifest arthritis after follow-up was associated with baseline serum vaspin levels (HR1.5 (95% CI 1.1 to 2.2); p = 0.020), also after adjustment for overweight (HR1.7 (95% CI 1.1 to 2.5); p = 0.016). This association was not seen for other adipokines. Various serum adipokine levels correlated with BMI (adiponectin r = -0.538, leptin r = 0.664; chemerin r = 0.529) and systemic markers of inflammation such as CRP levels at baseline (adiponectin r = -0.449, omentin r = -0.557, leptin r = 0.635, chemerin r = 0.619, resistin r = 0.520) and ESR (leptin r = 0.512, chemerin r = 0.708), p-value<0.05. Synovial expression of adiponectin, resistin and visfatin was not associated with development of clinically manifest arthritis. Conclusions In this exploratory study, serum adipokines were associated with an increased inflammatory state in autoantibody-positive individuals at risk of developing RA. Furthermore, serum vaspin levels may assist in predicting the development of arthritis in these individuals.
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Musters A, Assaf A, Gerlag DM, Tak PP, Tas SW. Discovery of Innovative Therapies for Rare Immune-Mediated Inflammatory Diseases via Off-Label Prescription of Biologics: The Case of IL-6 Receptor Blockade in Castleman's Disease. Front Immunol 2015; 6:625. [PMID: 26697019 PMCID: PMC4676110 DOI: 10.3389/fimmu.2015.00625] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 11/30/2015] [Indexed: 12/28/2022] Open
Abstract
Biologics have revolutionized the field of clinical immunology and proven to be both effective and safe in common immune-mediated inflammatory diseases (IMIDs) such as rheumatoid arthritis, inflammatory bowel diseases, and various hematological disorders. However, in patients with rare, severe IMIDs failing on standard therapies, it is virtually impossible to conduct randomized controlled trials. Therefore, biologics are usually prescribed off-label in these often severely ill patients. Unfortunately, off-label prescription is sometimes hampered in these diseases due to a lack of reimbursement that is often based on a presumed lack of evidence for effectiveness. In the present article, we will discuss that off-label prescription of biologics can be a good way to discover new treatments for rare diseases. This will be illustrated using a case of multicentric Castleman’s disease, an immune-mediated lymphoproliferative disorder, in which off-label tocilizumab (humanized anti-IL-6 receptor blocking antibody) treatment resulted in remarkable clinical improvement. Furthermore, we will give recommendations for monitoring efficacy and safety of biologic treatment in rare IMIDs, including the use of registries. In conclusion, we put forward that innovative treatments for rare IMIDs can be discovered via off-label prescription of biologicals, provided that this is based on rational arguments including knowledge of the pathophysiology of the disease.
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Abstract
There is a growing understanding of the epigenetic mechanisms that regulate gene expression in healthy conditions and a realisation that dysregulation of these mechanisms is an underlying factor in many human diseases. We discuss studies demonstrating that small molecule inhibitors of epigenetic regulatory proteins can block pathogenic mechanisms associated with rheumatoid arthritis, focusing on the effects of these inhibitors on synovial fibroblasts-fibroblast-like synoviocytes.
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Klarenbeek PL, Doorenspleet ME, Esveldt REE, van Schaik BDC, Lardy N, van Kampen AHC, Tak PP, Plenge RM, Baas F, de Bakker PIW, de Vries N. Somatic Variation of T-Cell Receptor Genes Strongly Associate with HLA Class Restriction. PLoS One 2015; 10:e0140815. [PMID: 26517366 PMCID: PMC4627806 DOI: 10.1371/journal.pone.0140815] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 09/29/2015] [Indexed: 01/18/2023] Open
Abstract
Every person carries a vast repertoire of CD4+ T-helper cells and CD8+ cytotoxic T cells for a healthy immune system. Somatic VDJ recombination at genomic loci that encode the T-cell receptor (TCR) is a key step during T-cell development, but how a single T cell commits to become either CD4+ or CD8+ is poorly understood. To evaluate the influence of TCR sequence variation on CD4+/CD8+ lineage commitment, we sequenced rearranged TCRs for both α and β chains in naïve T cells isolated from healthy donors and investigated gene segment usage and recombination patterns in CD4+ and CD8+ T-cell subsets. Our data demonstrate that most V and J gene segments are strongly biased in the naïve CD4+ and CD8+ subsets with some segments increasing the odds of being CD4+ (or CD8+) up to five-fold. These V and J gene associations are highly reproducible across individuals and independent of classical HLA genotype, explaining ~11% of the observed variance in the CD4+ vs. CD8+ propensity. In addition, we identified a strong independent association of the electrostatic charge of the complementarity determining region 3 (CDR3) in both α and β chains, where a positively charged CDR3 is associated with CD4+ lineage and a negatively charged CDR3 with CD8+ lineage. Our findings suggest that somatic variation in different parts of the TCR influences T-cell lineage commitment in a predominantly additive fashion. This notion can help delineate how certain structural features of the TCR-peptide-HLA complex influence thymic selection.
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Collins ES, Butt AQ, Gibson DS, Dunn MJ, Fearon U, van Kuijk AW, Gerlag DM, Pontifex E, Veale DJ, Tak PP, FitzGerald O, Pennington SR. A clinically based protein discovery strategy to identify potential biomarkers of response to anti-TNF-α treatment of psoriatic arthritis. Proteomics Clin Appl 2015; 10:645-62. [PMID: 26108918 DOI: 10.1002/prca.201500051] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 06/05/2015] [Accepted: 06/22/2015] [Indexed: 12/19/2022]
Abstract
PURPOSE Psoriatic arthritis (PsA) can be treated using biologic therapies targeting biomolecules such as tumor necrosis factor alpha, interleukins (IL)-17 and IL-23. Although 70% PsA patients respond well to therapy, 30% patients show no or limited clinical improvement. Biomarkers that predict response to therapy would help to avoid unnecessary use of expensive biologics in nonresponding patients and enable alternative treatments to be explored. EXPERIMENTAL DESIGN Patient synovial tissue samples from two clinical studies were analysed using difference in-gel electrophoresis-based proteomics to identify protein expression differences in response to anti-TNF-α treatment. Subsequent multiplexed MRM measurements were used to verify potential biomarkers. RESULTS A total of 119 proteins were differentially expressed (p<0.05) in response to anti-TNF-α treatment and 25 proteins were differentially expressed (p<0.05) between "good responders" and "poor responders". From these differentially expressed proteins, MRM assays were developed for four proteins to explore their potential as treatment predictive biomarkers. CONCLUSION AND CLINICAL RELEVANCE Gel-based proteomics strategy has demonstrated differential protein expression in synovial tissue of PsA patients, in response to anti-TNF-α treatment. Development of multiplex MRM assays to these differentially expressed proteins has the potential to predict response to therapy and allow alternative, more effective treatments to be explored sooner.
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Gerlag DM, Norris JM, Tak PP. Towards prevention of autoantibody-positive rheumatoid arthritis: from lifestyle modification to preventive treatment. Rheumatology (Oxford) 2015; 55:607-14. [PMID: 26374913 PMCID: PMC4795536 DOI: 10.1093/rheumatology/kev347] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Indexed: 01/02/2023] Open
Abstract
Recent advances in research into the earliest phases of RA have provided additional insights into the processes leading from the healthy to the diseased state. These insights have opened the way for the development of preventive strategies for RA, which represents a significant paradigm shift from treatment to prevention and will have major implications for patients as well as society. It would be a huge step forward if clinical signs and symptoms, disability, impaired quality of life and the need for chronic immunosuppressive treatment could be prevented. RA can be seen as a prototypic autoimmune disease, and discoveries about the preclinical diseased state for RA could potentially facilitate research into prevention of other immune-mediated inflammatory diseases such as type 1 diabetes, SLE and multiple sclerosis. This review focuses on the current knowledge of factors contributing to the development of RA and discusses the opportunities for intervention.
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Bisoendial R, Tabet F, Tak PP, Petrides F, Cuesta Torres LF, Hou L, Cook A, Barter PJ, Weninger W, Rye KA. Apolipoprotein A-I Limits the Negative Effect of Tumor Necrosis Factor on Lymphangiogenesis. Arterioscler Thromb Vasc Biol 2015; 35:2443-50. [PMID: 26359513 DOI: 10.1161/atvbaha.115.305777] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 08/25/2015] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Lymphatic endothelial dysfunction underlies the pathogenesis of many chronic inflammatory disorders. The proinflammatory cytokine tumor necrosis factor (TNF) is known for its role in disrupting the function of the lymphatic vasculature. This study investigates the ability of apolipoprotein (apo) A-I, the principal apolipoprotein of high-density lipoproteins, to preserve the normal function of lymphatic endothelial cells treated with TNF. APPROACH AND RESULTS TNF decreased the ability of lymphatic endothelial cells to form tube-like structures. Preincubation of lymphatic endothelial cells with apoA-I attenuated the TNF-mediated inhibition of tube formation in a concentration-dependent manner. In addition, apoA-I reversed the TNF-mediated suppression of lymphatic endothelial cell migration and lymphatic outgrowth in thoracic duct rings. ApoA-I also abrogated the negative effect of TNF on lymphatic neovascularization in an ATP-binding cassette transporter A1-dependent manner. At the molecular level, this involved downregulation of TNF receptor-1 and the conservation of prospero-related homeobox gene-1 expression, a master regulator of lymphangiogenesis. ApoA-I also re-established the normal phenotype of the lymphatic network in the diaphragms of human TNF transgenic mice. CONCLUSIONS ApoA-I restores the neovascularization capacity of the lymphatic system during TNF-mediated inflammation. This study provides a proof-of-concept that high-density lipoprotein-based therapeutic strategies may attenuate chronic inflammation via its action on lymphatic vasculature.
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Maijer KI, Li W, Sasso EH, Gerlag DM, Defranoux NA, Tak PP. Does the multi-biomarker disease activity score have diagnostic value in early rheumatoid arthritis and unclassified arthritis? Ann Rheum Dis 2015; 74:2097-9. [PMID: 26338034 PMCID: PMC4680142 DOI: 10.1136/annrheumdis-2015-207911] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 08/11/2015] [Indexed: 01/26/2023]
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Maijer KI, Noort AR, de Hair MJH, van der Leij C, van Zoest KPM, Choi IY, Gerlag DM, Maas M, Tak PP, Tas SW. Nuclear Factor-κB-inducing Kinase Is Expressed in Synovial Endothelial Cells in Patients with Early Arthritis and Correlates with Markers of Inflammation: A Prospective Cohort Study. J Rheumatol 2015; 42:1573-81. [PMID: 26178280 DOI: 10.3899/jrheum.150245] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/27/2015] [Indexed: 01/15/2023]
Abstract
OBJECTIVE The nuclear factor-κB (NF-κB) family of transcription factors is strongly involved in synovial inflammation. We have previously shown that NF-κB-inducing kinase (NIK) is a key regulator of inflammation-induced angiogenesis in rheumatoid arthritis (RA) synovial tissue (ST). Here, we investigated synovial NIK expression in patients with early arthritis and in autoantibody-positive individuals at risk of developing RA. METHODS ST biopsies were obtained by arthroscopy from 154 patients with early arthritis (duration < 1 yr) with various diagnoses and 54 IgM rheumatoid factor-positive and/or anticitrullinated protein antibodies-positive individuals without evidence of arthritis. ST was stained for NIK and endothelial cell (EC) markers. Additionally, measures of disease activity were collected and contrast-enhanced magnetic resonance imaging (MRI) was performed in a subset of these patients. RESULTS In patients with early arthritis, NIK was predominantly expressed in EC of small blood vessels. Further, NIK expression correlated with erythrocyte sedimentation rate (r 0.184, p = 0.024), C-reactive protein (r 0.194, p = 0.017), joint swelling (r 0.297, p < 0.001), synovial immune cell markers (lining r 0.585, p < 0.001; sublining macrophages r 0.728, p < 0.001; T cells r 0.733, p < 0.001; and B cells r 0.264, p = 0.040), MRI effusion (r 0.665, p < 0.001), MRI synovitis (r 0.632, p < 0.001), and MRI total score (r 0.569, p < 0.001). In 18.5% of autoantibody-positive individuals, ST NIK(+)EC were present, but this was not predictive of the development of arthritis. CONCLUSION NIK(+)EC are present in the earliest phase of synovial inflammation and may be indicative of high angiogenic activity in the inflamed ST. Therefore, NIK(+)EC may play an important role in the persistence of synovitis. Collectively, our data underscore the importance of angiogenesis in synovial inflammation and identify NIK as a potential therapeutic target in arthritis.
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Koopman FA, Vosters JL, Roescher N, Broekstra N, Tak PP, Vervoordeldonk MJ. Cholinergic anti-inflammatory pathway in the non-obese diabetic mouse model. Oral Dis 2015; 21:858-65. [DOI: 10.1111/odi.12354] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 05/27/2015] [Accepted: 05/29/2015] [Indexed: 01/03/2023]
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Aalbers CJ, Gerlag DM, Vervoordeldonk MJ, Tak PP, Landewé RB. Single-joint Assessment for the Evaluation of Intraarticular Treatment: Responsiveness and Discrimination of the Composite Change Index. J Rheumatol 2015; 42:1672-6. [PMID: 26178282 DOI: 10.3899/jrheum.140956] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/06/2015] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To investigate responsiveness, discrimination, and construct validity of a composite change index (CCI) for the assessment of single-joint involvement in inflammatory arthritis. METHODS Evaluation of standardized response means (SRM), Guyatt effect size, and Spearman rank correlation coefficient in a randomized controlled trial investigating the effect of an intraarticular etanercept injection. RESULTS The CCI showed a high SRM (1.68) and high Guyatt effect size (2.72). Both visual analog scale of pain and functionality had a moderate Guyatt effect size (2.06, 2.44) and high SRM (0.81, 0.97). CONCLUSION This study supports the use of the CCI as a single-joint assessment after single-joint intervention. CLINICAL TRIAL REGISTRATION NTR-1210.
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Noort AR, van Zoest KPM, van Baarsen LG, Maracle CX, Helder B, Papazian N, Romera-Hernandez M, Tak PP, Cupedo T, Tas SW. Tertiary Lymphoid Structures in Rheumatoid Arthritis: NF-κB-Inducing Kinase-Positive Endothelial Cells as Central Players. THE AMERICAN JOURNAL OF PATHOLOGY 2015; 185:1935-43. [PMID: 25963989 DOI: 10.1016/j.ajpath.2015.03.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 03/20/2015] [Accepted: 03/24/2015] [Indexed: 11/25/2022]
Abstract
Tertiary lymphoid structures (TLSs) in chronic inflammation, including rheumatoid arthritis (RA) synovial tissue (ST), often contain high endothelial venules and follicular dendritic cells (FDCs). Endothelial cell (EC)-specific lymphotoxin β (LTβ) receptor signaling is critical for the formation of lymph nodes and high endothelial venules. FDCs arise from perivascular platelet-derived growth factor receptor β(+) precursor cells (preFDCs) that require specific group 3 innate lymphoid cells (ILC3s) and LTβ for their expansion. Previously, we showed that RA ST contains ECs that express NF-κB-inducing kinase (NIK), which is pivotal in LTβ-induced noncanonical NF-κB signaling. We studied the relation between NIK(+) ECs, (pre)FDCs, and ILC3s with respect to TLSs in RA ST. TLS(+) tissues exhibited a significantly increased expression of genes involved in noncanonical NF-κB signaling, including NIK, and immunohistochemical analysis revealed that NIK was almost exclusively expressed by ECs. ILC3s were present in human RA ST in very low numbers, but not differentially in TLS(+) tissues. In contrast, TLS(+) tissues contained significantly more NIK(+) ECs and perivascular platelet-derived growth factor receptor β(+) preFDCs, which correlated significantly with the quantity of FDCs. We established a strong link between NIK(+) ECs, (pre)FDCs, and the presence of TLSs, indicating that NIK(+) ECs may not only be important orchestrators of lymph node development but also contribute to the formation of TLSs in chronic inflammation.
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Aalbers CJ, Bevaart L, Loiler S, de Cortie K, Wright JF, Mingozzi F, Tak PP, Vervoordeldonk MJ. Preclinical Potency and Biodistribution Studies of an AAV 5 Vector Expressing Human Interferon-β (ART-I02) for Local Treatment of Patients with Rheumatoid Arthritis. PLoS One 2015; 10:e0130612. [PMID: 26107769 PMCID: PMC4479517 DOI: 10.1371/journal.pone.0130612] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 05/21/2015] [Indexed: 01/09/2023] Open
Abstract
Introduction Proof of concept for local gene therapy for the treatment of arthritis with immunomodulatory cytokine interferon beta (IFN-β) has shown promising results in animal models of rheumatoid arthritis (RA). For the treatment of RA patients, we engineered a recombinant adeno-associated serotype 5 vector (rAAV5) encoding human (h)IFN-β under control of a nuclear factor κB promoter (ART-I02). Methods The potency of ART-I02 in vitro as well as biodistribution in vivo in arthritic animals was evaluated to characterize the vector prior to clinical application. ART-I02 expression and bioactivity after transduction was evaluated in fibroblast-like synoviocytes (FLS) from different species. Biodistribution of the vector after local injection was assessed in a rat adjuvant arthritis model through qPCR analysis of vector DNA. In vivo imaging was used to investigate transgene expression and kinetics in a mouse collagen induced arthritis model. Results Transduction of RA FLS in vitro with ART-I02 resulted in high expression levels of bioactive hIFN-β. Transduction of FLS from rhesus monkeys, rodents and rabbits with ART-I02 showed high transgene expression, and hIFN-β proved bioactive in FLS from rhesus monkeys. Transgene expression and bioactivity in RA FLS were unaltered in the presence of methotrexate. In vivo, vector biodistribution analysis in rats after intra-articular injection of ART-I02 demonstrated that the majority of vector DNA remained in the joint (>93%). In vivo imaging in mice confirmed local expression of rAAV5 in the knee joint region and demonstrated rapid detectable and sustained expression up until 7 weeks. Conclusions These data show that hIFN-β produced by RA FLS transduced with ART-I02 is bioactive and that intra-articular delivery of rAAV5 drives expression of a therapeutic transgene in the joint, with only limited biodistribution of vector DNA to other tissues, supporting progress towards a phase 1 clinical trial for the local treatment of arthritis in patients with RA.
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MESH Headings
- Animals
- Arthritis, Experimental/therapy
- Arthritis, Rheumatoid/drug therapy
- Arthritis, Rheumatoid/therapy
- Cells, Cultured
- Cytokines/biosynthesis
- Dependovirus/genetics
- Gene Expression/drug effects
- Genes, Synthetic
- Genetic Therapy
- Genetic Vectors/administration & dosage
- Genetic Vectors/genetics
- Genetic Vectors/pharmacokinetics
- Genetic Vectors/therapeutic use
- Humans
- Injections, Intra-Articular
- Interferon-beta/genetics
- Macaca mulatta
- Male
- Methotrexate/pharmacology
- Methotrexate/therapeutic use
- Mice
- Mice, Inbred DBA
- NF-kappa B/genetics
- Promoter Regions, Genetic/genetics
- Rabbits
- Rats
- Rats, Inbred Lew
- Specific Pathogen-Free Organisms
- Synovial Membrane/cytology
- Synovial Membrane/virology
- Tissue Distribution
- Transduction, Genetic
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Bevaart L, Aalbers CC, Vierboom M, Broekstra N, Kondova I, Breedveld E, Hauck B, Wright F, Tak PP, Vervoordeldonk MJ. SAFETY, BIODISTRIBUTION, AND EFFICACY OF AN AAV-5 VECTOR ENCODING HUMAN INTERFERON-BETA (ART-I02) DELIVERED VIA INTRA-ARTICULAR INJECTION IN RHESUS MONKEYS WITH COLLAGEN-INDUCED ARTHRITIS. HUM GENE THER CL DEV 2015. [DOI: 10.1089/hum.2015.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Snoek SA, Kramer E, van Geldorp M, Brunekreef R, Broekstra N, van Ittersum J, Tak PP, Vervoordeldonk MJ, Finn JD. 93. Macrophages Are a Barrier to AAV5 Mediated Gene Expression in the Air Pouch Synovial Inflammation (APSI) Model. Mol Ther 2015. [DOI: 10.1016/s1525-0016(16)33698-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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78
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Aalbers CJ, Broekstra N, van Geldorp M, Tak PP, Vervoordeldonk MJ, Finn JD. 645. Improving RAAV Gene Expression Inflammatory Conditions Using Empty Capsids and an Immunosuppressive Compound. Mol Ther 2015. [DOI: 10.1016/s1525-0016(16)34254-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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79
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Maharaj AB, Govender J, Maharaj K, Rajkaran M, Tak PP. Summary of Sensitivity and Specificity for Psoriatic Arthritis in a South African Cohort according to Classification Criteria. J Rheumatol 2015; 42:960-2. [PMID: 25877500 DOI: 10.3899/jrheum.141537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/24/2015] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To evaluate the sensitivity and specificity of the classification criteria for psoriatic arthritis (PsA) in a South African cohort. METHODS Data from consecutive patients with PsA and other chronic inflammatory arthritides were collected prospectively. Subjects were classified according to the classification criteria. The sensitivity and specificity in each group of patients were compared with a clinical diagnosis made by a rheumatologist. RESULTS The European Spondylarthropathy Study Group criteria exhibited the lowest sensitivity followed by the Moll and Wright criteria. The sensitivity and specificity of the ClASsification for Psoriatic ARthritis (CASPAR) criteria were 98.4% and 99.7%, respectively. CONCLUSION The CASPAR criteria were evaluated in our cohort and they performed well.
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Diogo D, Bastarache L, Liao KP, Graham RR, Fulton RS, Greenberg JD, Eyre S, Bowes J, Cui J, Lee A, Pappas DA, Kremer JM, Barton A, Coenen MJH, Franke B, Kiemeney LA, Mariette X, Richard-Miceli C, Canhão H, Fonseca JE, de Vries N, Tak PP, Crusius JBA, Nurmohamed MT, Kurreeman F, Mikuls TR, Okada Y, Stahl EA, Larson DE, Deluca TL, O'Laughlin M, Fronick CC, Fulton LL, Kosoy R, Ransom M, Bhangale TR, Ortmann W, Cagan A, Gainer V, Karlson EW, Kohane I, Murphy SN, Martin J, Zhernakova A, Klareskog L, Padyukov L, Worthington J, Mardis ER, Seldin MF, Gregersen PK, Behrens T, Raychaudhuri S, Denny JC, Plenge RM. TYK2 protein-coding variants protect against rheumatoid arthritis and autoimmunity, with no evidence of major pleiotropic effects on non-autoimmune complex traits. PLoS One 2015; 10:e0122271. [PMID: 25849893 PMCID: PMC4388675 DOI: 10.1371/journal.pone.0122271] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 02/17/2015] [Indexed: 02/06/2023] Open
Abstract
Despite the success of genome-wide association studies (GWAS) in detecting a large number of loci for complex phenotypes such as rheumatoid arthritis (RA) susceptibility, the lack of information on the causal genes leaves important challenges to interpret GWAS results in the context of the disease biology. Here, we genetically fine-map the RA risk locus at 19p13 to define causal variants, and explore the pleiotropic effects of these same variants in other complex traits. First, we combined Immunochip dense genotyping (n = 23,092 case/control samples), Exomechip genotyping (n = 18,409 case/control samples) and targeted exon-sequencing (n = 2,236 case/controls samples) to demonstrate that three protein-coding variants in TYK2 (tyrosine kinase 2) independently protect against RA: P1104A (rs34536443, OR = 0.66, P = 2.3x10-21), A928V (rs35018800, OR = 0.53, P = 1.2x10-9), and I684S (rs12720356, OR = 0.86, P = 4.6x10-7). Second, we show that the same three TYK2 variants protect against systemic lupus erythematosus (SLE, Pomnibus = 6x10-18), and provide suggestive evidence that two of the TYK2 variants (P1104A and A928V) may also protect against inflammatory bowel disease (IBD; Pomnibus = 0.005). Finally, in a phenome-wide association study (PheWAS) assessing >500 phenotypes using electronic medical records (EMR) in >29,000 subjects, we found no convincing evidence for association of P1104A and A928V with complex phenotypes other than autoimmune diseases such as RA, SLE and IBD. Together, our results demonstrate the role of TYK2 in the pathogenesis of RA, SLE and IBD, and provide supporting evidence for TYK2 as a promising drug target for the treatment of autoimmune diseases.
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81
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Strang AC, Knetsch MLW, Koole LH, de Winter RJ, van der Wal AC, de Vries CJM, Tak PP, Bisoendial RJ, Stroes ESG, Rotmans JI. Effect of anti-ApoA-I antibody-coating of stents on neointima formation in a rabbit balloon-injury model. PLoS One 2015; 10:e0122836. [PMID: 25821966 PMCID: PMC4378909 DOI: 10.1371/journal.pone.0122836] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 02/15/2015] [Indexed: 01/17/2023] Open
Abstract
Background and Aims Since high-density lipoprotein (HDL) has pro-endothelial and anti-thrombotic effects, a HDL recruiting stent may prevent restenosis. In the present study we address the functional characteristics of an apolipoprotein A-I (ApoA-I) antibody coating in vitro. Subsequently, we tested its biological performance applied on stents in vivo in rabbits. Materials and Methods The impact of anti ApoA-I- versus apoB-antibody coated stainless steel discs were evaluated in vitro for endothelial cell adhesion, thrombin generation and platelet adhesion. In vivo, response to injury in the iliac artery of New Zealand white rabbits was used as read out comparing apoA-I-coated versus bare metal stents. Results ApoA-I antibody coated metal discs showed increased endothelial cell adhesion and proliferation and decreased thrombin generation and platelet adhesion, compared to control discs. In vivo, no difference was observed between ApoA-I and BMS stents in lumen stenosis (23.3±13.8% versus 23.3±11.3%, p=0.77) or intima surface area (0.81±0.62 mm2 vs 0.84±0.55 mm2, p=0.85). Immunohistochemistry also revealed no differences in cell proliferation, fibrin deposition, inflammation and endothelialization. Conclusion ApoA-I antibody coating has potent pro-endothelial and anti-thrombotic effects in vitro, but failed to enhance stent performance in a balloon injury rabbit model in vivo.
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Koopman FA, Roescher N, Vosters JL, Broekstra N, Tak PP, Vervoordeldonk MJ. A8.16 The cholinergic anti-inflammatory pathway does not influence sialadenitis or diabetes in the non-obese diabetic mouse model of SjÖgren’s syndrome. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-207259.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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van Baarsen LGM, de Hair MJH, Semmelink JF, Choi IY, Gerlag DM, Tak PP. A7.7 Synovial tissue profiling in autoantibody positive individuals without arthritis reveals gene signatures associated with subsequent development of rheumatoid arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-207259.177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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84
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Koopman FA, Tang MW, Vermeij J, de Hair MJ, Choi IY, Vervoordeldonk MJ, Gerlag DM, Karemaker JM, Tak PP. A7.8 Autonomic dysfunction in the preclinical phase of rheumatoid arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-207259.178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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85
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Maijer KI, Noort AR, de Hair MJH, van der Leij C, van Zoest KPM, Choi IY, Gerlag DM, Maas M, Tak PP, Tas SW. A6.21 NF-κB-inducing kinase (NIK) is expressed in synovial endothelial cells in early arthritis patients and correlates with markers of inflammation. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-207259.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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86
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García S, Malvar-Fernández B, Baeten DL, Tak PP, Reedquist KA. A2.25 TIE2 signalling induces a pro-inflammatory phenotype in rheumatoid arthritis and psoriatic arthritis macrophages. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-207259.60] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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87
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Ramwadhdoebe TH, Hähnlein J, Maijer KI, Gerlag DM, Tak PP, van Baarsen LGM. A1.8 CD4 +T-helper cell subsets in lymph node biopsies and peripheral blood during the earliest phases of rheumatoid arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-207259.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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88
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Hähnlein J, Ramwadhdoebe TH, Semmelink JF, Choi IY, Smits NAM, Berger FH, Maas M, Gerlag DM, Geijtenbeek TBH, Tak PP, van Baarsen LBM. A6.9 Distinct expression of T-cell homing molecules in human autoimmune lymph node stromal cells upon TLR-3 triggering. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-207259.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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89
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Van der Horst A, Choi YK, van Schaardenburg DJ, Gerlag DM, Hamann D, Tak PP, Thurlings RM. A7.3 The mucosal anti-citrullinated protein antibody response in pre-clinical rheumatoid arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-207259.173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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90
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Snoek SA, Braam C, Brunekreef R, Broekstra N, van Ittersum J, Tak PP, Vervoordeldonk MJ, Finn JD. A6.39 Dynamic regulation of adenosine receptors determines responses to adenosine in primary cells from healthy donors and rheumatoid arthritis patients. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-207259.165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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91
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Ramwadhdoebe TH, Hähnlein J, van Kuijk BJ, Choi IY, Gerlag DM, Tak PP, van Baarsen LGM. A1.20 Lymphoid tissue analyses in autoantibody positive individuals at risk for developing rheumatoid arthritis reveals an important role for CD8 +T cells during the earliest phases of autoimmunity. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-207259.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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92
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Nguyen DT, Dellbrügge S, Tak PP, Woo SLY, Blankevoort L, van Dijk NC. Histological characteristics of ligament healing after bio-enhanced repair of the transected goat ACL. J Exp Orthop 2015; 2:4. [PMID: 26914872 PMCID: PMC4544611 DOI: 10.1186/s40634-015-0021-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Accepted: 02/06/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Recently, healing of a ruptured anterior cruciate ligament (ACL) is reconsidered. In a previous study, we have shown that the transected ACL can heal after treatment with the triple X locking suture alone or combined with small intestine submucosa (SIS). The first research question of this study was whether the healing ACLs in both groups show histological characteristics that are typical for ligament healing. Secondly, did the combined treatment with SIS lead to improved histological healing, in terms of the morphology of the fibrous synovial layer, the extracellular matrix (ECM), collagen fiber orientation, cellularity, ratio of myofibroblasts, and collagen type 3 staining. The hypothesis was that SIS enhances the healing by the scaffolding effect, endogenous growth factors, and chemoattractants. METHODS In the Suture group, the left ACL was transected and sutured with the triple X locking suture repair technique. In the Suture-SIS group, the left ACL underwent the same procedure with the addition of SIS. The right ACL served as internal control. Standard histology and immunostaining of α-smooth muscle actin (SMA) and collagen type 3 were used. RESULTS Microscopy showed that the fibrous synovial layer around the ACL was reestablished in both groups. The collagen fibers in the Suture-SIS group stained denser, were more compactly arranged, and the ECM contained fewer voids and fat vacuoles. Neovasculature running between the collagen fibers was observed in both experimental groups. Collagen type 3 stained less in the Suture-SIS group. The cellularity in the Suture group, Suture-SIS group and Control was 1265 ± 1034 per mm(2), 954 ± 378 per mm(2), 254 ± 92, respectively; 49%, 26% and 20% of the cells stain positive for α-SMA, respectively. CONCLUSION The healing ACL in both treated groups showed histological characteristics which are comparable to the spontaneously healing medial collateral ligament and showed that the ACL has a similar intrinsic healing response. Though, no definitive conclusions on the beneficial effects of the SIS scaffold on the healing process can be made.
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Finn JD, Snoek S, van Ittersum J, Broekstra N, Braam C, Kramer E, van Geldorp M, Tak PP, Vervoordeldonk MJ. A8.12 AAV mediated expression of CD39 and CD73 is effective in reducing inflammation in the air pouch synovial inflammation model. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-207259.197] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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94
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Ramwadhdoebe TH, Boumans MJH, Bruijnen STG, Safy M, Berger FH, van Baarsen LGM, van der Laken CJ, Gerlag DM, Thurlings RM, Tak PP. A8.10 The effect of rituximab treatment on B and T cell subsets in lymphoid tissues of patients with rheumatoid arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-207259.195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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95
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Finn JD, van Ittersum J, Broekstra N, Tak PP, Vervoordeldonk MJ. A8.14 CD39 and CD73 transgenic exosomes and recombinant fusion protein as novel therapeutics for the treatment of inflammatory disease. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-207259.199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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96
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Noort AR, Tak PP, Tas SW. Non-canonical NF-κB signaling in rheumatoid arthritis: Dr Jekyll and Mr Hyde? Arthritis Res Ther 2015; 17:15. [PMID: 25774937 PMCID: PMC4308835 DOI: 10.1186/s13075-015-0527-3] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The nuclear factor-κB (NF-κB) family of transcription factors is essential for the expression of pro-inflammatory cytokines, but can also induce regulatory pathways. NF-κB can be activated via two distinct pathways: the classical or canonical pathway, and the alternative or non-canonical pathway. It is well established that the canonical NF-κB pathway is essential both in acute inflammatory responses and in chronic inflammatory diseases, including rheumatoid arthritis (RA). Although less extensively studied, the non-canonical NF-κB pathway is not only central in lymphoid organ development and adaptive immune responses, but is also thought to play an important role in the pathogenesis of RA. Importantly, this pathway appears to have cell type-specific functions and, since many different cell types are involved in the pathogenesis of RA, it is difficult to predict the net overall contribution of the non-canonical NF-κB pathway to synovial inflammation. In this review, we describe the current understanding of non-canonical NF-κB signaling in various important cell types in the context of RA and consider the relevance to the pathogenesis of the disease. In addition, we discuss current drugs targeting this pathway, as well as future therapeutic prospects.
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Karpus ON, Kiener HP, Niederreiter B, Yilmaz-Elis AS, van der Kaa J, Ramaglia V, Arens R, Smolen JS, Botto M, Tak PP, Verbeek JS, Hamann J. CD55 deposited on synovial collagen fibers protects from immune complex-mediated arthritis. Arthritis Res Ther 2015; 17:6. [PMID: 25596646 PMCID: PMC4325944 DOI: 10.1186/s13075-015-0518-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 01/06/2015] [Indexed: 12/31/2022] Open
Abstract
INTRODUCTION CD55, a glycosylphosphatidylinositol-anchored, complement-regulating protein (decay-accelerating factor), is expressed by fibroblast-like synoviocytes (FLS) with high local abundance in the intimal lining layer. We here explored the basis and consequences of this uncommon presence. METHODS Synovial tissue, primary FLS cultures, and three-dimensional FLS micromasses were analyzed. CD55 expression was assessed by quantitative polymerase chain reaction (PCR), in situ hybridization, flow cytometry, and immunohistochemistry. Reticular fibers were visualized by Gomori staining and colocalization of CD55 with extracellular matrix (ECM) proteins by confocal microscopy. Membrane-bound CD55 was released from synovial tissue with phospholipase C. Functional consequences of CD55 expression were studied in the K/BxN serum transfer model of arthritis using mice that in addition to CD55 also lack FcγRIIB (CD32), increasing susceptibility for immune complex-mediated pathology. RESULTS Abundant CD55 expression seen in FLS of the intimal lining layer was associated with linearly oriented reticular fibers and was resistant to phospholipase C treatment. Expression of CD55 colocalized with collagen type I and III as well as with complement C3. A comparable distribution of CD55 was established in three-dimensional micromasses after ≥3 weeks of culture together with the ECM. CD55 deficiency did not enhance K/BxN serum-induced arthritis, but further exaggerated disease activity in Fcgr2b (-/-) mice. CONCLUSIONS CD55 is produced by FLS and deposited on the local collagen fiber meshwork, where it protects the synovial tissue against immune complex-mediated arthritis.
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van Maanen MA, Papke RL, Koopman FA, Koepke J, Bevaart L, Clark R, Lamppu D, Elbaum D, LaRosa GJ, Tak PP, Vervoordeldonk MJ. Two novel α7 nicotinic acetylcholine receptor ligands: in vitro properties and their efficacy in collagen-induced arthritis in mice. PLoS One 2015; 10:e0116227. [PMID: 25617631 PMCID: PMC4305287 DOI: 10.1371/journal.pone.0116227] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 12/04/2014] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION The cholinergic anti-inflammatory pathway can downregulate inflammation via the release of acetylcholine (ACh) by the vagus nerve. This neurotransmitter binds to the α7 subunit of nicotinic acetylcholine receptors (α7nAChR), expressed on macrophages and other immune cells. We tested the pharmacological and functional profile of two novel compounds, PMP-311 and PMP-072 and investigated their role in modulating collagen-induced arthritis (CIA) in mice. METHODS Both compounds were characterized with binding, electrophysiological, and pharmacokinetic studies. For in vivo efficacy studies in the CIA model the compounds were administered daily by oral gavage from day 20 till sacrifice at day 34. Disease progression was monitored by visual clinical scoring and measurement of paw swelling. Inflammation and joint destruction were examined by histology and radiology. RESULTS Treatment with PMP-311 was effective in preventing disease onset, reducing clinical signs of arthritis, and reducing synovial inflammation and bone destruction. PMP-072 also showed a trend in arthritis reduction at all concentrations tested. The data showed that while both compounds bind to α7nAChR with high affinity, PMP-311 acts like a classical agonist of ion channel activity, and PMP-072 can actually act as an ion channel antagonist. Moreover, PMP-072 was clearly distinct from typical competitive antagonists, since it was able to act as a silent agonist. It synergizes with the allosteric modulator PNU-120596, and subsequently activates desensitized α7nAChR. However, PMP-072 was less efficacious than PMP-311 at both channel activation and desensitization, suggesting that both conducting and non-conducting states maybe of importance in driving an anti-inflammatory response. Finally, we found that the anti-arthritic effect can be observed despite limited penetration of the central nervous system. CONCLUSIONS These data provide direct evidence that the α7nAChR in immune cells does not require typical ion channel activation to exert its antiinflammatory effects.
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Klein K, Kabala PA, Grabiec AM, Gay RE, Kolling C, Lin LL, Gay S, Tak PP, Prinjha RK, Ospelt C, Reedquist KA. The bromodomain protein inhibitor I-BET151 suppresses expression of inflammatory genes and matrix degrading enzymes in rheumatoid arthritis synovial fibroblasts. Ann Rheum Dis 2014; 75:422-9. [DOI: 10.1136/annrheumdis-2014-205809] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Accepted: 11/07/2014] [Indexed: 12/14/2022]
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Angiolilli C, Grabiec AM, Ferguson BS, Ospelt C, Malvar Fernandez B, van Es IE, van Baarsen LGM, Gay S, McKinsey TA, Tak PP, Baeten DL, Reedquist KA. Inflammatory cytokines epigenetically regulate rheumatoid arthritis fibroblast-like synoviocyte activation by suppressing HDAC5 expression. Ann Rheum Dis 2014; 75:430-8. [PMID: 25452308 DOI: 10.1136/annrheumdis-2014-205635] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Accepted: 11/07/2014] [Indexed: 11/04/2022]
Abstract
OBJECTIVES Epigenetic modifications play an important role in the regulation of gene transcription and cellular function. Here, we examined if pro-inflammatory factors present in the inflamed joint of patients with rheumatoid arthritis (RA) could regulate histone deacetylase (HDAC) expression and function in fibroblast-like synoviocytes (FLS). METHODS Protein acetylation in synovial tissue was assessed by immunohistochemistry. The mRNA levels of HDAC family members and inflammatory mediators in the synovial tissue and the changes in HDAC expression in RA FLS were measured by quantitative (q) PCR. FLS were either transfected with HDAC5 siRNA or transduced with adenoviral vector encoding wild-type HDAC5 and the effects of HDAC5 manipulation were examined by qPCR arrays, ELISA and ELISA-based assays. RESULTS Synovial class I HDAC expression was associated with local expression of tumour necrosis factor (TNF) and matrix metalloproteinase-1, while class IIa HDAC5 expression was inversely associated with parameters of disease activity (erythrocyte sedimentation rate, C-reactive protein, Disease Activity Score in 28 Joints). Interleukin (IL)-1β or TNF stimulation selectively suppressed HDAC5 expression in RA FLS, which was sufficient and required for optimal IFNB, CXCL9, CXCL10 and CXCL11 induction by IL-1β, associated with increased nuclear accumulation of the transcription factor, interferon regulatory factor 1(IRF1). CONCLUSIONS Inflammatory cytokines suppress RA FLS HDAC5 expression, promoting nuclear localisation of IRF1 and transcription of a subset of type I interferon response genes. Our results identify HDAC5 as a novel inflammatory mediator in RA, and suggest that strategies rescuing HDAC5 expression in vivo, or the development of HDAC inhibitors not affecting HDAC5 activity, may have therapeutic applications in RA treatment.
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