Microglia as drivers of neurodegeneration: The role of innate-adaptive immune signaling

Microglia contribute to neurodegeneration through numerous mechanisms. In this issue of Neuron, Shi et al.1 identify a maladaptive innate-adaptive immune axis with CD8+ T cells, mediated through microglial CCL2/8 and CCR2/5, in radiation-induced brain injury and stroke. Their findings across species and injuries suggest broader implications for neurodegenerative conditions. Microglia contribute to neurodegeneration through numerous mechanisms. In this issue of Neuron, Shi et al.1 identify a maladaptive innate-adaptive immune axis with CD8+ T cells, mediated through microglial CCL2/8 and CCR2/5, in radiation-induced brain injury and stroke. Their findings across species and injuries suggest broader implications for neurodegenerative conditions.