Abstract
Biologic antirheumatic drugs (BIO) have been reported to be potent therapeutic agents in the prevention of inflammatory joint destruction in rheumatoid arthritis (RA). The aim of this study was to investigate the immune-inflammatory cells, including Toll-like receptor (TLR)-equipped cells, in synovial tissue samples from RA patients on BIO compared to patients, who are only on conventional disease-modifying antirheumatic drug (DMARD). We analyzed immune-inflammatory cells in RA synovitis in patients of BIO group (n = 20) or DMARD group (n = 20). The grading scores of synovitis was 1.7 and 1.8 in each BIO and DMARD group and correlated best with the CD3+ T (r = 0.71/0.70, p < 0.05) and CD20+ B (r = 0.80/0.84, p < 0.05) cells in the both groups, but less well with the CD68+ macrophages and S-100+ dendritic cells (DCs). Interestingly, both T (116 vs. 242, p < 0.05) and B (80 vs. 142, p < 0.05) cell counts were lower in the BIO than in the DMARD group, whereas macrophage and DC counts did not differ. In contrast, the C-reactive protein (CRP) and disease activity score DAS28-CRP did not show clear-cut correlations with the inflammatory grade of the synovitis (r range, 0–0.35). Similar numbers of cells immunoreactive for TLR-1 to TLR-6 and TLR-9 were found in synovitis in both groups. Patients clinically responding to biologics might still have the potential of moderate/severe local joint inflammation, composed in particular of and possibly driven by the autoinflammatory TLR+ cells.
Similar content being viewed by others
References
Siegel RM (2009) Effector mechanisms of autoimmunity and inflammation. In: Firestein GS, Budd RC, Harris ED Jr, Mclnnes IB, Ruddy S, Sergent JS (eds) Text book of rheumatology, 8th edn. WB Saunders, Philadelphia, pp 259–263
Firestein GS (2003) Evolving concepts of rheumatoid arthritis. Nature 423:356–361
Santiago-Schwarz F, Anand P, Liu S, Carsons SE (2001) Dendritic cells (DCs) in rheumatoid arthritis (RA): progenitor cells and soluble factors contained in RA synovial fluid yield a subset of myeloid DCs that preferentially activate Th1 inflammatory-type responses. J Immunol 167:1758–1768
Theofilopoulos AN, Gonzalez-Quintial R, Lawson BR et al (2010) Sensors of the innate immune system: their link to rheumatic diseases. Nat Rev Rheumatol 6:146–156
Radstake TR, van Lieshout AW, van Riel PL, van den Berg WB, Adema GJ (2005) Dendritic cells, Fc gamma receptors, and Toll-like receptors: potential allies in the battle against rheumatoid arthritis. Ann Rheum Dis 64:1532–1538
Huang QQ, Pope RM (2009) The role of toll-like receptors in rheumatoid arthritis. Curr Rheumatol Rep 11:357–364
Akira S, Takeda K, Kaisho T (2001) Toll-like receptors: critical proteins linking innate and acquired immunity. Nat Immunol 2:675–680
Tamaki Y, Takakubo Y, Goto K et al (2009) Increased expression of toll-like receptors in aseptic loose periprosthetic tissues and septic synovial membranes around total hip implants. J Rheumatol 36:598–608
Khan S, Greenberg JD, Bhardwaj N (2009) Dendritic cells as targets for therapy in rheumatoid arthritis. Nat Rev Rheumatol 5:566–571
Roelofs MF, Joosten LA, Abdollahi-Roodsaz S et al (2005) The expression of toll-like receptors 3 and 7 in rheumatoid arthritis synovium is increased and costimulation of toll-like receptors 3, 4, and 7/8 results in synergistic cytokine production by dendritic cells. Arthritis Rheum 52:2313–2322
Radstake TR, Roelofs MF, Jenniskens YM et al (2004) Expression of toll-like receptors 2 and 4 in rheumatoid synovial tissue and regulation by proinflammatory cytokines interleukin-12 and interleukin-18 via interferon-gamma. Arthritis Rheum 50:3856–3865
Goronzy JJ, Weyand CM (2009) Developments in the scientific understanding of rheumatoid arthritis. Arthritis Res Ther 11:249
Lipsky PE, van der Heijde DM, St Clair EW et al (2000) Infliximab and methotrexate in thetreatment of rheumatoid arthritis. Anti-tumor necrosis factor trial in rheumatoid arthritis with concomitant therapy study group. N Engl J Med 30:1594–1602
Goekoop-Ruiterman YP, de Vries-Bouwstra JK, Allaart CF et al (2005) Clinical and radiographic outcomes of four different treatment strategies in patients with early rheumatoid arthritis (the BeSt study): a randomized, controlled trial. Arthritis Rheum 52:3381–3390
Klareskog L, van der Heijde D, de Jager JP et al (2004) Therapeutic effect of the combination of etanercept and methotrexate compared with each treatment alone in patients with rheumatoid arthritis: double-blind randomised controlled trial. Lancet 363:675–681
Takakubo Y, Takagi M, Tamaki Y et al (2010) Mid-term results of joint-preserving procedures by a modified Mann method for big toe deformities in rheumatoid patients undergoing forefoot surgeries. Mod Rheumatol 20:147–153
Abdollahi-Roodsaz S, Joosten LA, Roelofs MF et al (2007) Inhibition of Toll-like receptor 4 breaks the inflammatory loop in autoimmune destructive arthritis. Arthritis Rheum 56:2957–2967
Felson DT, Anderson JJ, Boers M et al (1995) American College of Rheumatology. Preliminary definition of improvement in rheumatoid arthritis. Arthritis Rheum 38:727–735
Prevoo ML, van’t Hof MA, Kuper HH, van Leeuwen MA, van de Putte LB, van Riel PL (1995) Modified disease activity scores that include twenty-eight-joint counts. Development and validation in a prospective longitudinal study of patients with rheumatoid arthritis. Arthritis Rheum 38:44–48
Maeda K, Matsuda M, Degawa N et al (1995) In vitro immune complex binding assay to examine the mechanism of immune complex trapping by human follicular dendritic cells (FDC). Adv Exp Med Biol 378:317–319
Krenn V, Morawietz L, Haupl T, Neidel J, Petersen I, Konig A (2002) Grading of chronic synovitis—a histopathological grading system for molecular and diagnostic pathology. Pathol Res Pract 198:317–325
Takakubo Y, Takagi M, Maeda K et al (2008) Distribution of myeloid dendritic cells and plasmacytoid dendritic cells in the synovial tissues of rheumatoid arthritis. J Rheumatol 35:1919–1931
Tsuge K, Takeda H, Kawada S, Maeda K, Yamakawa M (2005) Characterization of dendritic cells in differentiated thyroid cancer. J Pathol 205:565–576
Page G, Miossec P (2004) Paired synovium and lymph nodes from rheumatoid arthritis patients differ in dendritic cell and chemokine expression. J Pathol 204:28–38
Kavousanaki M, Makrigiannakis A, Boumpas D, Verginis P (2010) Novel role of plasmacytoid dendritic cells in humans: induction of interleukin-10-producing Treg cells by plasmacytoid dendritic cells in patients with rheumatoid arthritis responding to therapy. Arthritis Rheum 62:53–63
van Gestel AM, Haagsma CJ, van Riel PL (1998) Validation of rheumatoid arthritis improvement criteria that include simplified joint counts. Arthritis Rheum 41:1845–1850
Baldwin HM, Ito-Ihara T, Isaacs JD, Hilkens CM (2010) Tumour necrosis factor alpha blockade impairs dendritic cell survival and function in rheumatoid arthritis. Ann Rheum Dis 69:1200–1207
Roelofs MF, Wenink MH, Brentano F et al (2009) Type I interferons might form the link between Toll-like receptor (TLR) 3/7 and TLR4-mediated synovial inflammation in rheumatoid arthritis (RA). Ann Rheum Dis 68:1486–1493
Iwahashi M, Yamamura M, Aita T et al (2004) Expression of Toll-like receptor 2 on CD16+ blood monocytes and synovial tissue macrophages in rheumatoid arthritis. Arthritis Rheum 50:1457–1467
Miyasaka N, Takeuchi T, Eguchi K (2005) Proposed [corrected] Japanese guidelines for the use of infliximab for rheumatoid arthritis. Mod Rheumatol 15:4–8
Cañete JD, Celis R, Moll C et al (2009) Clinical significance of synovial lymphoid neogenesis and its reversal after anti-tumour necrosis factor alpha therapy in rheumatoid arthritis. Ann Rheum Dis 68:751–756
Van de Sande MG, Gerlag DM, Lodde BM et al (2011) Evaluating antirheumatic treatments using synovial biopsy: a recommendation for standardisation to be used in clinical trials. Ann Rheum Dis 70:423–427
Acknowledgment
We sincerely thank a lot Ms. Eiko Saito for her skillful technical support in immunohistochemistry. Y. Takakubo from Japan was supported by the Excellent Young Researchers Overseas Visit Program, the Japan Society for the Promotion of Science (21–8117), and Y. T. Konttinen from Finland by ORTON Orthopedic Hospital, Helsinki University Central Hospital, Sigrid Jusélius Foundation, Finska Läkaresällskapet, and the Danish Council for Strategic Research (“Individualized musculoskeletal medicine”).
Disclosures
None.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Takakubo, Y., Tamaki, Y., Hirayama, T. et al. Inflammatory immune cell responses and Toll-like receptor expression in synovial tissues in rheumatoid arthritis patients treated with biologics or DMARDs. Clin Rheumatol 32, 853–861 (2013). https://doi.org/10.1007/s10067-013-2209-3
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10067-013-2209-3