Abstract:
:Autoreactivity to heat shock protein 60 (Hsp60) has been implicated in the pathogenesis and regulation of chronic inflammation, especially in autoimmune diseases. In transplantation, there is a lack of information regarding the cytokine profile and specificity of cells that recognize self-Hsp60 as well as the kinetics of autoreactivity following transplantation. We studied the cellular reactivity of peripheral and graft-infiltrating lymphocytes against Hsp60 in renal transplant patients. Cytokine production induced by this protein in peripheral blood mononuclear cells indicated a predominance of interleukin (IL)-10 during the late post-transplantation period, mainly in response to intermediate and C-terminal peptides. Patients with chronic rejection presented reactivity to Hsp60 with a higher IL-10/interferon (IFN)-gamma ratio compared to long-term clinically stable patients. Graft-infiltrating T cell lines, cocultured with antigen-presenting cells, preferentially produced IL-10 after Hsp60 stimulation. These results suggest that, besides its proinflammatory activity, autoreactivity to Hsp60 in transplantation may also have a regulatory role.
journal_name
Clin Exp Immunoljournal_title
Clinical and experimental immunologyauthors
Caldas C,Luna E,Spadafora-Ferreira M,Porto G,Iwai LK,Oshiro SE,Monteiro SM,Fonseca JA,Lemos F,Hammer J,Ho PL,Kalil J,Coelho Vdoi
10.1111/j.1365-2249.2006.03195.xsubject
Has Abstractpub_date
2006-10-01 00:00:00pages
66-75issue
1eissn
0009-9104issn
1365-2249pii
CEI3195journal_volume
146pub_type
杂志文章abstract::An experimental model of immunological deficiency obtained by treating mice for 6 months with serum of human blood drawn from different healthy individuals has been studied. The results show that an alteration of a circulating lymphocyte population with alterations of the ratio CD4+/CD8+ appeared in mice stimulated fo...
journal_title:Clinical and experimental immunology
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journal_title:Clinical and experimental immunology
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