The tumour microenvironment often suppresses immune cell function and cancer-associated fibroblasts (CAF) are involved in the process. Here authors show in human tumours and in mouse models that AEBP1 is highly expressed in CAFs, and via autocrine stimulation of its receptor CKAP4, it induces the upregulation of PD-L1, which inhibits the anti-tumor T cell response.
- Xiaoyu Wang
- Jie Li
- Hongzhong Li