CXCL1 and skin squamous cell carcinoma: In skin squamous cell carcinomas, upregulation of ETV1 was sufficient to induce most CAF effectors upregulated by fibroblast growth factor (FGF), which could promote the secretion of multiple chemokines with macrophage-recruiting activity including CXCL1, CXCL10, and CXCL11.