ZNF668 expression in non-small cell lung carcinoma cell lines. (A) Protein expression of ZNF668 in five lung cancer cell lines (A549, H292, H1299, H460 and SPC) and a human bronchial epithelium cell line (HBE). Data are representative of at least three independent experiments generating similar results. (B) Localization of ZNF668 in lung cancer cell lines (HBE, A549, and H1299). ZNF668 was primarily localized in the nuclei of lung cancer cells. Magnification, ×600. ZNF668, zinc finger protein 668.