We also stably expressed Flag-tagged SMARCC1 or SMARCC2 under the retroviral LTR promoter control41 in human lung carcinoma H1299 cells and found that the ectopically expressed Flag-SMARCC1 and SMARCC2 are also sensitive to LSD1 silencing (see below). Here, SMARCC2 is linked to lung carcinoma.