Immune responses against self-TCR peptides

Cellular Immunology
Y KawanoI Gery

Abstract

Vaccination of rats against the TCR peptide V beta 8.2 (39-59) was reported to inhibit the immunopathogenic process of EAE. Analysis of the immune response to this peptide and several related TCR peptides yielded the following findings: (i) Lewis rats immunized in vivo and challenged in vitro responded with vigorous lymphocyte proliferative responses to peptide V beta 8.2 (39-59) and to three other rat TCR peptides, V beta 8.3 (15-32), V beta 8.3 (39-59), and V beta 14 (39-59). On the other hand, two other rat peptides, V beta 8.2 (18-38) and V beta 8.3 (62-76), were poorly immunogenic. (ii) Rat peptide V beta 8.2 (39-59) was found more immunogenic than its mouse homolog, in both Lewis rats and B10.A mice. A moderate level of cross-reactivity was observed between these two peptide homologs. (iii) Rats of different genetic makeups varied in their response to peptide V beta 8.2 (39-59). A similar pattern of response of the different rats was found with another TCR peptide, V beta 14 (39-59). Hybrids between high and low responder rat strains resembled the high responders in their response to the TCR peptides. (iv) Sensitized lymph node cells as well as lymphocytes of a cell line specific for peptide V beta 8.2 (39-59) failed to r...Continue Reading

Citations

Sep 1, 1995·Current Eye Research·L V Rizzo, R R Caspi

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