Abstract:
:Adjuvant arthritis in Lewis rats is a model of T cell-mediated autoimmune arthritis resembling human rheumatoid arthritis. A nonapeptide from the 65-kD heat-shock protein of Mycobacterium bovis BCG, amino acid sequence 180-188, has been described to carry the dominant immunogenic epitope(s) for both arthritis-protective and arthritogenic T cell clones. Here we demonstrate that immunizations with the synthetic nonapeptide completely protected rats against adjuvant arthritis induced by M. tuberculosis. Interestingly, deletion of the N-terminal threonine of the nonapeptide resulted in loss of the protective activity. Pretreatments with the nonapeptide resulted in an immune response to the nonapeptide and to M. tuberculosis. After immunizations with the synthetic nonapeptide, only low titres of nonapeptide-specific antibodies were produced, whereas a significant cellular immune response to the nonapeptide was observed. In addition, the protection was transferable to naive rats by spleen T cells. These findings document the requirement of a T cell-specific immune response to the dominant epitope of the 65-kD mycobacterial heat-shock protein for the protection against adjuvant arthritis and suggest the feasibility of immune intervention in autoimmune arthritis through the use of synthetic peptides.
journal_name
Clin Exp Immunoljournal_title
Clinical and experimental immunologyauthors
Yang XD,Gasser J,Feige Udoi
10.1111/j.1365-2249.1990.tb03316.xsubject
Has Abstractpub_date
1990-08-01 00:00:00pages
189-94issue
2eissn
0009-9104issn
1365-2249journal_volume
81pub_type
杂志文章abstract::The concept that during an immune challenge the release of glucocorticoids (GC) provides feedback inhibition on evolving immune responses has been drawn primarily from studies of autoimmune and/or inflammatory processes in animal models. The epidemic form of haemolytic uraemic syndrome (HUS) occurs secondary to infect...
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pub_type: 杂志文章
doi:
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