Abstract
We report the course of a 55-year-old woman, the first patient with primary Sjögren's syndrome and distal renal tubular acidosis but without lymphoma to be treated with B-cell depletion using Rituximab. Rapidly after B-cell depletion, remarkable improvement in xerostomia occurred, while serological findings and tubular acidosis have been unchanged. In labial salivary gland biopsy, lymphocyte infiltration and particularly CD20-positive cells decreased strikingly. Aquaporin 1 (AQP-1) expression in myoepithelial cells was very low before treatment and increased noticeably. Apical AQP-5 in acinus cells likewise increased following Rituximab. In contrast, basolateral NKCC1 was expressed at unchanged intensity before and following Rituximab. The improvement has been sustained and still is most gratifying 10 months after treatment. B-cell depletion may be effective treatment in Sjögren's syndrome. Likewise, it may now be possible to separate the immunologic phenomena in Sjögren's syndrome from the consequences of prolonged hyposalivation when studying the pathophysiology of xerostomia.
References
Groom J, Kalled SL, Cutler AH et al (2002) Association of BAFF/BLyS overexpression and altered B cell differentiation with Sjögren's syndrome. J Clin Invest 109:59–68
Somer BG, Tsai DE, Downs L, Weinstein B, Shuster SJ (2003) Improvement in Sjögren's syndrome following therapy with Rituximab for marginal zone lymphoma. Arthritis Rheum 49:394–398
Cragg MS, Walshe CA, Ivanóv AO, Glennie MJ (2005) The biology of CD20 and its potential as a target for mAb therapy. Curr Dir Autoimmun 8:140–174
Venables PJW (2004) Sjögren's syndrome. Best Pract Res Clin Rheumatol 18:313–329
Cavill D, Waterman SA, Gordon TP (2004) Antibodies raised against the second extracellular loop of the human muscarinic M3 receptor mimic functional autoantibodies in Sjögren's syndrome. Scand J Immunol 59:261–266
Maruyama T, Saito I, Hayashi Y, Kompfner E, Fox RI, Burton DR, Ditzel HJ (2004) Molecular analysis of the human autoantibody response to α-fodrin in Sjögren's syndrome reveals novel apoptosis-induced specificity. Am J Pathol 165:53–61
Turner RJ, Sugiya H (2002) Understanding salivary fluid and protein secretion. Oral Dis 8:3–11
Matsuzaki T, Tajika Y, Ablimit A, Aoki T, Hagiwara H, Takata K (2004) Aquaporins in the digestive system. Med Electron Microsc 37:71–80
Beroukas D, Hiscock J, Gannon BJ, Jonsson R, Gordon TP, Waterman SA (2002) Selective down-regulation of aquaporin-1 in salivary glands in primary Sjögren's syndrome. Lab Invest 82:1547–1552
Li J, Ha YM, Kü NY, Choi SY, Lee SJ, Oh SB, Kim JS, Lee JH, Lee EB, Song YW, Park K (2004) Inhibitory effects of autoantibodies on muscarinic receptors in Sjögren's syndrome. Lab Invest 84:1430–1438
Gresz V, Kwon T-H, Gong H, Agre P, Steward MC, King LS, Nielsen S (2004) Immunolocalization of AQP-5 in rat parotid and submandibular salivary glands after stimulation or inhibition of secretion in vivo. Am J Physiol 287:G151–G161
Ishikawa Y, Inoue N, Zhenfang Y, Nakae Y (2004) Molecular mechanisms and drug development in aquaporin water channel diseases: the translocation of aquaporin-5 from lipid rafts to the apical plasma membrane of parotid glands of normal rats and the impairment of it in diabetic or aged rats. J Pharmacol Sci 96:271–275
Kallenbach M, Duan H, Ring T (2005) Rituximab induced remission in a patient with Wegener's granulomatosis. Nephron Clin Pract 99:c92–c96
Mariette X, Ravaud P, Steinfeld S, Baron G, Goetz J, Hachulla E, Combe B, Puéchal X, Pennec Y, Sauvezie B, Perdriger A, Hayem G, Janin A, Sibilia J (2004) Inefficacy of infliximab in primary Sjögren's syndrome. Arthritis Rheum 50:1270–1276
Pijpe J, Van Imhoff GW, Vissink A, Van der Wal JE, Kluin PM, Spijkervet FKL, Kallenberg CGM, Bootsma H (2004) Changes in salivary gland immunohistology and function after rituximab mono-therapy in a patient with Sjögren's syndrome and associated MALT-lymphoma. Ann Rheum Dis (epub ahead of print) http://Doi:10.1136/ard.2004.030684
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Ring, T., Kallenbach, M., Prætorius, J. et al. Successful treatment of a patient with primary Sjögren's syndrome with Rituximab. Clin Rheumatol 25, 891–894 (2006). https://doi.org/10.1007/s10067-005-0086-0
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DOI: https://doi.org/10.1007/s10067-005-0086-0