NOTCH2 and non-small cell lung carcinoma: Furthermore, the expression of LINC01806 in obtained NSCLC tumors was also determined by ISH assay and we found that restricted LINC01806 expression induced by LINC01806 knockdown was not recovered by down-regulating miR-4428 or up-regulating NOTCH2 (Additional file 2: Fig. S2E).