FAP and carcinoma: Distinguishing FAPhigh and FAPlow expressing tumor cells (Fig. S3A) in TCGA RNA-seq datasets (FAPhigh/low tumor lesions; n = 1292; FAPhigh carcinoma cell lines; n = 237); FAPhigh TC cell lines; n = 6); fibroblastic cell lines (n = 29), the highest increase in both FN1 and FAP expression levels was detected in the FAPhigh TC cell lines mimicking the FAP expression levels of fibroblasts.