KRT7 and neoplasm: There were 150 genes common between the top 1500 tumour versus normal gene list and resistance profile (Supplemetary Excel Sheet 8) among them KRT7 was highly overexpressed (Fig. 3), and the most striking change in immunoreactivity was observed in its encoded protein cytokeratin 7 (CK7) with a 75% augmentation of the number of cells stained (Table 1, Fig. 4).