T-Cell response to self HSP60 peptides in renal transplant recipients: a regulatory role?
2004
Abstract T-cell responses to heat shock proteins (Hsp) have been suggested to play a role not only in inflammatory conditions, but also in various human autoimmune diseases and in the allograft response. Previous data from our group suggested that during the early posttransplantation (post-Tx) period ( 1 year). IFNγ production induced by Hsp60 peptides was observed in 71% and 75% of the patients in the early and late post-Tx periods, respectively. Interleukin (IL)-10 production induced by Hsp60 peptides was observed in 28% of the patients in the early period and in 62% in the late period. Interestingly, the production of IL-10 was induced mainly by peptides of the intermediate and the C-terminal regions. This suggests a predominance of autoreactive regulatory anti-Hsp T-cell repertoire in the late post-Tx period, which predominantly recognize peptides from the intermediate and C-terminal regions of the protein.
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