Self-DNA has been implicated in the activation of cGAS/STING/IFN-I responses in autoimmunity and inflammatory diseases. Here the authors show that macrophage uses a process termed ‘nucleocytosis’ to extract nuclear DNA from lysosome-impaired, dying target cells, thereby activating downstream cGAS-STING signaling and IFN-I production.
- Hideo Negishi
- Yusuke Wada
- Ken J. Ishii