The interplay between microglial phagocytosis and function is not completely understood. Here, the authors show that in response to neurodegeneration, the phagocytic receptor MerTK in microglia triggers PU.1 and IRF8, which elicit TGFβ1 as an autocrine signal. This signaling pathway also occurs in Alzheimer’s disease mouse model and patient cells.
- Yingying Huang
- Zhangyuzi Deng
- Ying Cao