Microglia are activated in experimental autoimmune encephalomyelitis (EAE), a mouse model of multiple sclerosis. Here Shao-Cong Sun and colleagues demonstrate that the E3 ubiquitin ligase Peli1 is expressed in microglia and is required for their activation and expression of inflammatory cytokines and chemokines after the induction of EAE. Disease severity is reduced in Peli1-deficient mice, partly through the effects of Peli1 on TLR signaling and Traf3 degradation.
- Yichuan Xiao
- Jin Jin
- Shao-Cong Sun