Clonal expansions of pathogenic CD8+ effector cells in the CNS of myelin mutant mice.

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Authors

  • Christoph Leder
  • Nicholas Schwab
  • Chi Wang Ip
  • Antje Kroner
  • Klaus-Armin Nave
  • K. Dornmaier
  • Rudolf Martini
  • Heinz Wiendl

Tissue damage in the CNS is critically influenced by the adaptive immune system. Primary oligodendrocyte damage (by overexpression of PLP) leads to low-grade inflammation of high pathological impact, which is mediated by CD8+ T cells. To yield further insight into pathogenesis and nature of immune responses in myelin mutated mice, we here apply a detailed immunological characterization of CD8+ T cells in PLP-transgenic and aged wild type mice. We provide evidence that T effector cells accumulate in the CNS of PLP-transgenic and wild-type mice and show a higher level of activation in mutant mice, indicated by surface markers and clonal expansions, as demonstrated by T cell receptor CDR3-spectratype analysis. Vβ-Jβ similarities suggest specificity against a common antigen, albeit we could not find specific responses against myelin-antigen-derived peptides. The association of primary oligodendrocyte damage with secondary expansions of pathogenic cells underlines the role of adaptive immune reactions in neurodegenerative and neuroinflammatory diseases.

OriginalspracheEnglisch
ZeitschriftMolecular and Cellular Neuroscience
Jahrgang36
Ausgabenummer3
Seiten (von - bis)416-424
Anzahl der Seiten9
DOIs
PublikationsstatusErschienen - 01.11.2007
Extern publiziertJa

DOI