However, overexpression of EGFR has been associated with tumor growth and progression in a variety of cancers including non-small cell lung cancer (NSCLC), head and neck squamous cell carcinoma, and pancreatic cancer (Huang and Harari, 1999; Kris et al., 2003; Moore et al., 2007; Harrington et al., 2009). This evidence concerns the gene EGFR and non-small cell lung carcinoma.