In The Cancer Genome Atlas (TCGA) database [110], we found increased FAK expression at the mRNA level in several human malignancies, including 51% of uveal melanoma, 49% of ovarian serous cystadenocarcinoma, 41% of liver hepatocellular carcinoma, 34% of breast invasive carcinoma, 23% of lung adenocarcinoma, and 20% of lung squamous cell carcinoma, while not being reported in SCLC (Figure 3A). Here, PTK2 is linked to small cell lung carcinoma.