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  • Title: A synthetic peptide analogue of a determinant of type II collagen prevents the onset of collagen-induced arthritis.
    Author: Myers LK, Rosloniec EF, Seyer JM, Stuart JM, Kang AH.
    Journal: J Immunol; 1993 May 15; 150(10):4652-8. PubMed ID: 8482852.
    Abstract:
    The immunization of genetically susceptible strains of mice with type II collagen (CII) elicits a collagen-induced arthritis that resembles rheumatoid arthritis. Our laboratory previously identified a region of CII, CII-245-270, that contains a T cell epitope that is prominent in the immune response to CII. Residues critical to the I-Aq-restricted presentation of this determinant have been characterized. To produce synthetic peptides with the potential of disrupting I-Aq-restricted Ag presentation, synthetic analogue peptides were developed that contain site-directed substitutions in critical positions. One analogue peptide was found to be an efficient competitor for binding to I-Aq and to be capable of inhibiting T cell responses in vitro. When DBA/1 mice were coimmunized with CII and the analogue peptide, the incidence and severity of arthritis were greatly reduced, concordant with the humoral immune responses to CII.
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