Abstract
Systemic lupus erythematosus (lupus) is an autoimmune disease that affects primarily women, especially those of reproductive age. Lupus is a prototypic organ non-specific autoimmune disease that may affect any organ in the body resulting in displaying a broad spectrum of clinical and immunological manifestations. The pathogenesis of lupus involves a complex interplay between genetic and environmental factors and the adaptive and innate immune systems. Defects in central and peripheral tolerance, increased antigenic load, excess T-cell help, B cell hyperactivity, autoantibody production and cytokine imbalance, ultimately lead to immune-complex formation and complement activation causing immunologically mediated organ damage, culminating in premature death. There is an urgent need for the development of novel agents since many patients are refractory to traditional agents. However, there are two hurdles that make development of new therapeutic agents difficult. First, we do not understand the whole picture of the pathogenesis of lupus because of its complex and multi-systemic presentation. Secondly, lupus lacks a reliable and sensitive biomarker for measuring disease activity, and a standardized method for defining response to therapy. Nevertheless, great advances have been made during the past 10 years because of the great efforts of basic researchers and clinicians on elucidating the cause of the disease, and participation of pharmaceutical and biotechnical companies in the development of novel agents. My goal was to evaluate the efficacy and safety of novel pharmaceutical agents by a comprehensive review of open-label and randomized clinical trials conducted in patients with lupus.
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References
2. Hostmann A, Jacobi AM, Mei H, Hiepe F, Dorner T. Peripheral B cell abnormalities and disease activity in systemic lupus erythematosus. Lupus. 2008. 17:1064–1069.
3. Perosa F, Favoino E, Caragnano MA, Prete M, Dammacco F. CD20: A target antigen for immunotherapy of autoimmune diseases. Autoimmunity Reviews. 2005. 4:526–531.
4. Gunnarsson I, Sundelin B, Jonsdottir T, Jacobson SH, Henriksson EW, van Vollenhoven RF. Histopathologic and clinical outcome of rituximab treatment in patients with cyclophosphamide-resistant proliferative lupus nephritis. Arthritis and Rheumatism. 2007. 56:1263–1272.
5. Galarza-Maldonado C, Kourilovitch MR, Molineros JE, Cardiel MH, Zurita L, Soroka NF, et al. The administration of low doses of rituximab followed by hydroxychloroquine, prednisone and low doses of mycophenolate mofetil is an effective therapy in Latin American patients with active systemic lupus erythematosus. Autoimmunity Reviews. 2010. 10:108–111.
6. Merrill JT, Neuwelt CM, Wallace DJ, Shanahan JC, Latinis KM, Oates JC, et al. Efficacy and safety of rituximab in moderately-to -severely active systemic lupus erythematosus: the randomized, double-blind, phase II/III systemic lupus erythematosus evaluation of rituximab trial. Arthritis and Rheumatism. 2010. 62:222–233.
7. Sanz I, Lee FEH. B cells as therapeutic targets in SLE. Nature Reviews Rheumatology. 2010. 6:326–337.
8. Turner-Stokes T, Lu TY, Ehrenstein MR, Giles I, Rahman A, Isenberg DA. The efficacy of repeated treatment with B-cell depletion therapy in systemic lupus erythematosus: an evaluation. Rheumatology. 2011. 50:1401–1408.
9. Anolik JH, Aringer M. New treatments for SLE: cell-depleting and anti-cytokine therapies. Best Pract Res Clin Rheumatol. 2005. 19:859–878.
10. Rituxan warning. FDA Consum. 2007. 41:3.
11. Sato S, Miller AS, Inaoki M, Bock CB, Jansen PJ, Tang MLK, et al. CD22 is both a positive and negative regulator of B lymphocyte antigen receptor signal transduction: Altered signaling in CD22-deficient mice. Immunity. 1996. 5:551–562.
12. Jacobi AM, Goldenberg DM, Hiepe F, Radbruch A, Burmester GR, Dorner T. Dif ferential ef fects of epratuzumab on peripheral blood B cells of patients with systemic lupus erythematosus versus normal controls. Ann Rheum Dis. 2008. 67:450–457.
13. Stohl W, Metyas S, Tan SM, Cheema GS, Oamar B, Xu D, et al. B lymphocyte stimulator overexpression in patients with systemic lupus erythematosus - Longitudinal observations. Arthritis and Rheumatism. 2003. 48:3475–3486.
14. Navarra SV, Guzman RM, Gallacher AE, Hall S, Levy RA, Jimenez RE, et al. Efficacy and safety of belimumab in patients with active systemic lupus erythematosus: a randomised, placebo-controlled, phase 3 trial. Lancet. 2011. 377:721–731.
15. Cockerill KA, Iverson GM, Jones DS, Linnik MD. Therapeutic potential of toleragens in the management of antiphospholipid syndrome. Biodrugs. 2004. 18:297–305.
16. Grammer AC, Lipsky PE. CD154-CD40 interactions mediate differentiation to plasma cells in healthy individuals and persons with systemic lupus erythematosus. Arthritis and Rheumatism. 2002. 46:1417–1429.
17. Wang XB, Huang WQ, Schiffer LE, Mihara M, Akkerman A, Hiromatsu K, et al. Effects of anti-CD154 treatment on B cells in murine systemic lupus erythematosus. Arthritis and Rheumatism. 2003. 48:495–506.
18. Boumpas DT, Furie R, Manzi S, Illei GG, Wallace DJ, Balow JE, et al. A shor t course of BG9588 (anti-CD40 ligand antibody) improves serologic activity and decreases hematuria in patients with proliferative lupus glomerulonephritis. Arthritis and Rheumatism. 2003. 48:719–727.
19. Finck BK, Linsley PS, Wofsy D. Treatment of Murine Lupus with Ctla4ig. Science. 1994. 265:1225–1227.
20. Daikh DI, Wofsy D. Cutting edge: reversal of murine lupus nephritis with CTLA4Ig and cyclophosphamide. J Immunol. 2001. 166:2913–2916.
21. Weinblatt M, Combe B, Covucci A, Aranda R, Becker JC, Keystone E. Safety of the selective costimulation modulator abatacept in rheumatoid arthritis patients receiving background biologic and nonbiologic disease-modifying antirheumatic drugs: A one-year randomized, placebo-controlled study. Arthritis and Rheumatism. 2006. 54:2807–2816.
22. Usmani N, Goodfield M. Efalizumab in the treatment of discoid lupus erythematosus. Archives of Dermatology. 2007. 143:873–877.
23. Mount GR, Gilliland WR. Emerging biological therapies in systemic lupus erythematosus. Clin Pharmacol Ther. 2008. 83:167–171.
24. Horkko S, Miller E, Dudl E, Reaven P, Curtiss LK, Zvaifler NJ, et al. Antiphospholipid antibodies are directed against epitopes of oxidized phospholipids - Recognition of cardiolipin by monoclonal antibodies to epitopes of oxidized low density lipoprotein. Journal of Clinical Investigation. 1996. 98:815–825.
25. Burlingame RW, Rubin RL, Balderas RS, Theofilopoulos AN. Genesis and Evolution of Antichromatin Autoantibodies in Murine Lupus Implicates T-Dependent Immunization with Self Antigen. Journal of Clinical Investigation. 1993. 91:1687–1696.
26. Mevorach D, Zhou JL, Song X, Elkon KB. Systemic exposure to irradiated apoptotic cells induces autoantibody production. J Exp Med. 1998. 188:387–392.
27. Korb LC, Ahearn JM. C1q binds directly and specifically to surface blobs of apoptotic human keratinocytes - Complement deficiency and systemic tapes erythematosus revisited. J Immunol. 1997. 158:4525–4528.
28. Gershov D, Kim S, Brot N, Elkon KB. C-reactive protein binds to apoptotic cells, protects the cells from assembly of the terminal complement components, and sustains an antiinflammatory innate immune response: Implications for systemic autoimmunity. Journal of Experimental Medicine. 2000. 192:1353–1363.
29. Botto M, Dell'Agnola C, Bygrave AE, Thompson EM, Cook HT, Petry F, et al. Homozygous C1q deficiency causes glomerulonephritis associated with multiple apoptotic bodies. Nat Genet. 1998. 19:56–59.
30. Bickerstaff MCM, Botto M, Hutchinson WL, Herbert J, Tennent GA, Bybee A, et al. Serum amyloid P component controls chromatin degradation and prevents antinuclear autoimmunity. Nature Medicine. 1999. 5:694–697.
31. Bao L, Quigg RJ. Complement in lupus nephritis: The good, the bad, and the unknown. Seminars in Nephrology. 2007. 27:69–80.
32. Grondal G, Kristjansdottir H, Gunnlaugsdottir B, Arnason A, Lundberg I, Klareskog L, et al. Increased number of interleukin-10-producing cells in systemic lupus erythematosus patients and their first-degree relatives and spouses in Icelandic multicase families. Arthritis and Rheumatism. 1999. 42:1649–1654.
33. Ronnelid J, Tejde A, Mathsson L, Nilsson-Ekdahl K, Nilsson B. Immune complexes from SLE sera induce IL10 production from normal peripheral blood mononuclear cells by an Fc gamma RII dependent mechanism: implications for a possible vicious cycle maintaining B cell hyperactivity in SLE. Ann Rheum Dis. 2003. 62:37–42.
34. Llorente L, Richaud-Patin Y, Garcia-Padilla C, Claret E, Jakez-Ocampo J, Cardiel MH, et al. Clinical and biologic effects of anti-interleukin-10 monoclonal antibody administration in systemic lupus erythematosus. Arthritis and Rheumatism. 2000. 43:1790–1800.
35. Illei GG, Shirota Y, Yarboro CH, Daruwalla J, Tackey E, Takada K, et al. Tocilizumab in Systemic Lupus Erythematosus Data on Safety, Preliminary Efficacy, and Impact on Circulating Plasma Cells From an Open-Label Phase I Dosage-Escalation Study. Arthritis and Rheumatism. 2010. 62:542–552.
36. Takemura T, Yoshioka K, Murakami K, Akano N, Okada M, Aya N, et al. Cellular-Localization of Inflammatory Cytokines in Human Glomerulonephritis. Virchows Arch. 1994. 424:459–464.
37. Ostendorf B, Iking-Konert C, Kurz K, Jung G, Sander O, Schneider M. Preliminary results of safety and efficacy of the interleukin 1 receptor antagonist anakinra in patients with severe lupus arthritis. Ann Rheum Dis. 2005. 64:630–633.
38. Tracey D, Klareskog L, Sasso EH, Salfeld JG, Tak PP. Tumor necrosis factor antagonist mechanisms of action: A comprehensive review. Pharmacol Ther. 2008. 117:244–279.
39. Rosenblum H, Amital H. Anti-TNF therapy: Safety aspects of taking the risk. Autoimmunity Reviews. 2011. 10:563–568.
40. Bender NK, Heilig CE, Droll B, Wohlgemuth J, Armbruster FP, Heilig B. Immunogenicity, efficacy and adverse events of adalimumab in RA patients. Rheumatology International. 2007. 27:269–274.
41. Valesini G, Lannuccelli C, Marocchi E, Pascoll L, Scalzi V, Di Franco M. Biological and clinical effects of anti-TNF alpha treatment. Autoimmunity Reviews. 2007. 7:35–41.
42. Aringer M, Graninger WB, Steiner GN, Smolen JS. Safety and efficacy of tumor necrosis factor alpha blockade in systemic lupus erythematosus - An open-label study. Arthritis and Rheumatism. 2004. 50:3161–3169.
43. Soforo E, Baumgartner M, Francis L, et al. Induction of systemic lupus erythematosus with tumor necrosis factor blockers. J Rheumatol. 2010. 37:204–205.
44. Aringer M, Smolen JS. Therapeutic blockade of TNF in patients with SLE-Promising or crazy? Autoimmunity Reviews. 2012. 11:321–325.