Lack of Th2 cytokine increase during spontaneous remission of experimental allergic encephalomyelitis

F Di Rosa, A Francesconi, A Di Virgilio… - European journal of …, 1998 - Wiley Online Library
F Di Rosa, A Francesconi, A Di Virgilio, L Finocchi, I Santilio, V Barnaba
European journal of immunology, 1998Wiley Online Library
The mechanisms underlying spontaneous remission of autoimmune diseases are presently
unknown, though regulatory T cells are believed to play a major role in this process. We
tested the hypothesis that Th2 and/or other T cell regulatory cytokines cause the
spontaneous remission of experimental allergic encephalomyelitis (EAE), a model of Th1‐
mediated autoimmunity. We analyzed the cytokine profile of lymph node and central nervous
system‐infiltrating cells in individual SJL mice at different stages of proteolipid protein (PLP) …
Abstract
The mechanisms underlying spontaneous remission of autoimmune diseases are presently unknown, though regulatory T cells are believed to play a major role in this process. We tested the hypothesis that Th2 and/or other T cell regulatory cytokines cause the spontaneous remission of experimental allergic encephalomyelitis (EAE), a model of Th1‐mediated autoimmunity. We analyzed the cytokine profile of lymph node and central nervous system‐infiltrating cells in individual SJL mice at different stages of proteolipid protein (PLP) 139 – 151 peptide‐induced EAE. We found that IFN‐γ slowly fades away after clinical recovery, whereas IL‐4, IL‐10 and transforming growth factor‐β remain low or undetectable. Our peptide‐results therefore suggest that regulatory T cells producing anti‐inflammatory cytokines are not involved in spontaneous remission of EAE and challenge the view that the Th1/Th2 balance has a key role in EAE regulation.
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