AXL has been reported to be overexpressed or ectopically expressed in a multitude of human cancers, including breast (Zhang et al. 2008), colon (Craven et al. 1995), lung (Ishikawa et al. 2013), hepatocellular carcinoma (He et al. 2010), and esophageal adenocarcinoma (Hector et al. 2010). This evidence concerns the gene AXL and cancer.