The immunomodulatory functions of mast cells (MCs) within the tumor microenvironment are elusive. Here, the authors present a transcriptomic characterization of LUAD-infiltrating MCs and identify a proinflammatory subset that contributes to the activation of cytotoxic MAIT cells by secreting IL-18 via NRLP3 activation and pyroptosis, ultimately boosting anti-tumor immunity.
- Fanfan Fan
- Jun Wang
- Haiquan Chen
