80 Scopus citations


Neuroinflammation, characterized by activated microglia and infiltrating T cells, is a prominent pathological feature in neurodegenerative diseases. However, whether this inflammation contributes to neuronal injury or is a late consequence of neuronal injury is unclear. In this issue of the JCI, Brochard et al. report that CD4+ T cells are cytotoxic in a mouse model of Parkinson disease (PD) (see the related article beginning on page 182). Specifically, invading T lymphocytes contributed to neuronal cell death via the Fas/FasL pathway. The results implicate the adaptive immune system in the pathogenesis of Parkinson neurodegeneration and provide a meaningful rationale for immune-based therapies for PD.

Original languageEnglish (US)
Pages (from-to)13-15
Number of pages3
JournalJournal of Clinical Investigation
Issue number1
StatePublished - Jan 5 2009

ASJC Scopus subject areas

  • Medicine(all)


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