We also found that within the tumor lesions, ACSL3 is broadly expressed in tumor cells and only to a limited extent in stromal fibroblasts as evidenced by costaining with basic cytokeratin, a marker of epithelial cells (colocalization score, 68.23 ± 7.14%) and fibroblast activation protein α (FAP; colocalization score, 3.63 ± 2.18%), respectively (Fig. 2C). This evidence concerns the gene FAP and neoplasm.