T helper type 1 and 17 cells determine efficacy of interferon-Β in multiple sclerosis and experimental encephalomyelitis

Academic Article

Abstract

  • Interferon-Β (IFN-Β) is the major treatment for multiple sclerosis. However, this treatment is not always effective. Here we have found congruence in outcome between responses to IFN-Β in experimental autoimmune encephalomyelitis (EAE) and relapsing-remitting multiple sclerosis (RRMS). IFN-Β was effective in reducing EAE symptoms induced by T helper type 1 (T H 1) cells but exacerbated disease induced by T H 17 cells. Effective treatment in T H 1-induced EAE correlated with increased interleukin-10 (IL-10) production by splenocytes. In T H 17-induced disease, the amount of IL-10 was unaltered by treatment, although, unexpectedly, IFN-Β treatment still reduced IL-17 production without benefit. Both inhibition of IL-17 and induction of IL-10 depended on IFN-γ. In the absence of IFN-γ signaling, IFN-Β therapy was ineffective in EAE. In RRMS patients, IFN-Β nonresponders had higher IL-17F concentrations in serum compared to responders. Nonresponders had worse disease with more steroid usage and more relapses than did responders. Hence, IFN-Β is proinflammatory in T H 17-induced EAE. Moreover, a high IL-17F concentration in the serum of people with RRMS is associated with nonresponsiveness to therapy with IFN-Β. © 2010 Nature America, Inc. All rights reserved.
  • Authors

    Published In

  • Nature Medicine  Journal
  • Digital Object Identifier (doi)

    Author List

  • Axtell RC; De Jong BA; Boniface K; Van Der Voort LF; Bhat R; De Sarno P; Naves R; Han M; Zhong F; Castellanos JG
  • Start Page

  • 406
  • End Page

  • 412
  • Volume

  • 16
  • Issue

  • 4