B7H3 is an immune checkpoint overexpressed in many cancers and associated with tumor immune evasion. Here, the authors discover that in colorectal cancer, particularly microsatellite-stable tumors, palmitic acid promotes ZDHHC24- mediated B7H3 palmitoylation, regulating CD8⁺ T cell antitumor activity.
- Zejun Rao
- Changsheng Huang
- Xuelai Luo