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Polyclonal B-cell Activation by Bacteria That Induce Nonsuppurative Sequelae

Overview
Journal Rheumatol Int
Specialty Rheumatology
Date 1989 Jan 1
PMID 2575282
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Abstract

The polyclonal B cell activation (PBA) process induced by Klebsiella pneumoniae K34 (klebs) and Yersinia enterocolitica 03 (yers) was investigated. Both heat-inactivated bacteria and their cell wall biostructures (klebsM, muriene, protein I etc.) stimulate human blood B cells to differentiate into immunoglobulin-secreting cells without prior proliferation and without T cells. Klebs-activated B cells secrete mainly IgM and to a lesser degree IgG (mainly IgG2). The PBA process was regulated by CD4+ cells and monocytes, but not by CD8+ cells. While interleukin 2 is able both to induce proliferation and to enhance differentiation in klebs-activated B cell cultures, the low-molecular-weight B cell growth factor (BCGF) did not lead to a significant amount of 3H-thymidine uptake. In addition, in klebs-activated B cell cultures various anti-polynucleotide autoantibodies and the 16/6 idiotype were detectable. Thus, bacteria that induce nonsuppurative sequelae (e.g. klebs, yers) can use several mechanisms to overcome tolerance in their host.

References
1.
Vuento R . Antigen-specific lymphocyte transformation in patients with recent yersiniosis. Acta Pathol Microbiol Immunol Scand C. 1983; 91(2):89-93. View

2.
Gross W, Schlaak M . Modulation of human lymphocyte functions by group A streptococci. Clin Immunol Immunopathol. 1984; 32(2):234-47. DOI: 10.1016/0090-1229(84)90124-7. View

3.
Gross W, Sieg I, Steppat D . T-cell influence on the B-cell differentiation process induced by Klebsiella. Immunol Lett. 1985; 10(3-4):213-6. DOI: 10.1016/0165-2478(85)90080-x. View

4.
Vuento R, Leino R, Viander M, Toivanen A . In vitro lymphoproliferative response to Yersinia: depressed response in arthritic patients years after Yersinia infection. Clin Exp Rheumatol. 1983; 1(3):219-24. View

5.
Gross W, Lohmann C, Ludemann G, Ludemann J . Lymphocyte response to enterobacterial biostructures in seronegative spondarthritis: specific T-cell mediated immunity or non-specific polyclonal B-cell activation?. Br J Rheumatol. 1988; 27 Suppl 2:23-8. DOI: 10.1093/rheumatology/xxvii.suppl_2.23. View