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Outer Membrane Protein of Gut Commensal Microorganism Induces Autoantibody Production and Extra-Intestinal Gland Inflammation in Mice

Overview
Journal Int J Mol Sci
Publisher MDPI
Date 2018 Oct 24
PMID 30347705
Citations 10
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Abstract

Gut commensal microorganisms have been linked with chronic inflammation at the extra-intestinal niche of the body. The object of the study was to investigate on the chronic effects of a gut commensal on extra-intestinal glands. The presence of autoimmune response was diagnosed by autoantibody levels and histological methods. Repeated injection of induced mononuclear cell inflammation in the Harderian and submandibular salivary glands of female C57BL/6 mice. Inflammation was reproduced by adoptive transfer of splenocytes to immune-deficient Rag2 knockout mice and CD4⁺ T cells to mature T cell-deficient TCRβ-TCRδ knockout mice. MALDI TOF mass spectrometry of the protein to which sera of -treated mice reacted was determined as the outer membrane protein A (OmpA) of . Multiple genera of the Enterobacteriaceae possessed OmpA with high amino-acid sequence similarities. Repeated injection of recombinant OmpA reproduced mononuclear cell inflammation of the Harderian and salivary glands in mice and elevation of autoantibodies against Sjögren's-syndrome-related antigens SSA/Ro and SSB/La. The results indicated the possibility of chronic stimuli from commensal bacteria-originated components as a pathogenic factor to elicit extra-intestinal autoimmunity.

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References
1.
de Paiva C, Jones D, Stern M, Bian F, Moore Q, Corbiere S . Altered Mucosal Microbiome Diversity and Disease Severity in Sjögren Syndrome. Sci Rep. 2016; 6:23561. PMC: 4834578. DOI: 10.1038/srep23561. View

2.
Prasadarao N, Blom A, Villoutreix B, Linsangan L . A novel interaction of outer membrane protein A with C4b binding protein mediates serum resistance of Escherichia coli K1. J Immunol. 2002; 169(11):6352-60. DOI: 10.4049/jimmunol.169.11.6352. View

3.
Szymula A, Rosenthal J, Szczerba B, Bagavant H, Fu S, Deshmukh U . T cell epitope mimicry between Sjögren's syndrome Antigen A (SSA)/Ro60 and oral, gut, skin and vaginal bacteria. Clin Immunol. 2014; 152(1-2):1-9. PMC: 4004658. DOI: 10.1016/j.clim.2014.02.004. View

4.
Higuchi T, Haruta I, Shibata N, Yanagisawa N, Yagi J . Flagellar filament structural protein induces Sjögren's syndrome-like sialadenitis in mice. Oral Dis. 2017; 23(5):636-643. DOI: 10.1111/odi.12649. View

5.
Gu H, Liao Y, Zhang J, Wang Y, Liu Z, Cheng P . Rational Design and Evaluation of an Artificial K1 Protein Vaccine Candidate Based on the Structure of OmpA. Front Cell Infect Microbiol. 2018; 8:172. PMC: 5974202. DOI: 10.3389/fcimb.2018.00172. View