Abstract
Sjögren’s syndrome (SS) is an autoimmune disease that affects exocrine glands including salivary and lacrimal glands. Recently, autoantibodies against muscarinic acetylcholine receptor M3 (M3R) have been detected in serum from 9 to 100 % of patients with SS in addition to anti-SS-A and anti-SS-B antibodies. These observations suggest the possibility that anti-M3R antibodies could serve as a new diagnostic test in patients with SS. Some anti-M3R antibodies are directly responsible for salivary underproduction in patients with SS. Thus, strategies designed to eliminate such pathogenic antibodies could help cure SS sufferers. In this review, we summarize the current state of knowledge of anti-M3R autoantibodies in patients with SS and the correlation between B cell epitopes and the function of anti-M3R antibodies.
Similar content being viewed by others
References
Dawson L, Tobin A, Smith P, Gorton T. Antimuscarinic antibodies in Sjögren’s syndrome. Arthr Rheum. 2005;52:2984–95.
Li J, Ha YM, Ku NY, et al. Inhibitory effects of autoantibodies on the muscarinic receptors in Sjögren’s syndrome. Lab Invest. 2004;84:1430–8.
Scarselli M, Li B, Kim SK. Wess. Multiple residues in the second extracellular loop are critical for M3 muscarinic acetylcholine receptor activation. J Biol Chem. 2007;282:7385–96.
Naito Y, Matsumoto I, Wakamatsu E, et al. Muscarinic acetylcholine receptor autoantibodies in patients with Sjögren’s syndrome. Ann Rheum Dis. 2005;64:510–1.
Nakamura Y, Wakamatsu E, Matsumoto I, et al. High prevalence of autoantibodies to muscarinic-3 acetylcholine receptor in patients with juvenile-onset Sjögren’s syndrome. Ann Rheum Dis. 2008;67:136–7.
Koo NY, Li J, Hwang SM, et al. Functional epitopes of muscarinic type 3 receptor which interacts with autoantibodies from Sjögren’s syndrome patients. Rheumatology. 2008;47:828–33.
Tsuboi H, Matsumoto I, Wakamatsu E, Nakamura Y, Iizuka M, Hayashi T, Goto D, Ito S, Sumida T. New epitopes and function of anti-M3 muscarinic acetylcholine receptor antibodies in patients with Sjogren’s syndrome. Clin Exp Immunol. 2010;162:53–61.
Bacman SR, Berra A, Sterin-Borda L, Borda ES. Human primary Sjögren’s syndrome autoantibodies as mediators of nitric oxide release coupled to lacrimal gland muscarinic acetylcholine receptors. Curr Eye Res. 1998;17:1135–42.
Waterman SA, Gordon TP, Rischmueller M. Inhibitory effects of muscarinic receptor autoantibodies on parasympathetic neurotransmission in Sjögren’s syndrome. Arthr Rheum. 2000;43:1647–54.
Gao J, Cha S, Jonsson R, Opalko J, Peck AB. Detection of anti-type 3 muscarinic acetylcholine receptor antibodies in the sera of Sjögren’s syndrome patients by use of a transfected cell line assay. Arthr Rheum. 2004;50:2615–21.
Marczinovits I, Kovacs L, Gyorgy A, Toth GK, Dorgai L, Molnar J, Pokorny G. A peptide of human muscarinic acetylcholine receptor 3 is antigenic in primary Sjögren’s syndrome. J Autoimmun. 2005;24:47–54.
Kovacs L, Marczinovits I, Gyorgy A, Toth GK, Dorgai L, Pal J, Molnar J, Pokorny G. Clinical associations of autoantibodies to human muscarinic acetylcholine receptor 3213–228 in primary Sjögren’s syndrome. Rheumatology. 2005;44:1021–5.
He J, Qiang L, Ding Y, Wei P, Li YN, Hua H, Li ZG. The role of muscarinic acetylcholine receptor type 3 polypeptide (M3RP205–220) antibody in the saliva of patients with primary Sjogren’s syndrome. Clin Exp Rheumatol. 2012;30:322–6.
Cavill D, Waterman SA, Gordon TP. Antibodies raised against the second extracellular loop of the human muscarinic M3 receptor mimic functional autoantibodies in Sjögren’s syndrome. Scand J Immunol. 2004;59:261–6.
Dawson LJ, Stanbury J, Venn N, Hasdimir B, Rogers SN, Smith PM. Antimuscarinic antibodies in primary Sjögren’s syndrome reversibly inhibit the mechanism of fluid secretion by human submandibular salivary acinar cells. Arthr Rheum. 2006;54:1165–73.
Tsuboi H, Nakamura Y, Iizuka M, Matsuo N, Matsumoto I, Sumida T. Generation and functional analysis of monoclonal antibodies against the second extracellular loop of human M3 muscarinic acetylcholine receptor. Mod Rheumatol. 2012;22:264–71.
Jin M, Hwang S-M, Davies AJ, Shin Y, Bae J-S, Lee J-H, Lee EB, Song YW, Park K. Autoantibodies in primary Sjogren’s syndrome patients induce internalization of muscarinic type 3 receptors. Biochim Biophys Acta. 2012;1822:161–7.
Acknowledgments
The authors thank Dr. F.G. Issa for critical reading of the manuscript. This work was supported by the Research Program for Intractable Diseases, Health and Labor Sciences Research Grants from the Ministry of Health, Labor, and Welfare, Japan and the Ministry of Education, Culture, Sports, Science, and Technology.
Conflict of interest
None.
Author information
Authors and Affiliations
Corresponding author
About this article
Cite this article
Sumida, T., Tsuboi, H., Iizuka, M. et al. Anti-M3 muscarinic acetylcholine receptor antibodies in patients with Sjögren’s syndrome. Mod Rheumatol 23, 841–845 (2013). https://doi.org/10.1007/s10165-012-0788-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10165-012-0788-5