We examined Btbd7 and N-cadherin expression in bronchial epithelial HBE cell and lung cancer cell lines including A549, BE1, LK2, NCI-H157, NCI-H460, NCI-H1299, LH7, LTE and SPC using Western blotting (Figure 5, A, B). The gene discussed is BTBD7; the disease is lung carcinoma.