We examined 11 NSCLC cell lines for expression of GPRC5A, EGFR and HER2, and found that 4 out of 11 NSCLC cell lines (H292G, Calu-1, H322, and H226b) expressed elevated levels of GPRC5A (Figure 3A). This evidence concerns the gene ERBB2 and non-small cell lung carcinoma.