Fig. 6

Widespread changes of gene expressions and critical pathways in human lung adenocarcinoma cells A549 with GMDS knockdown. a Heatmap containing 739 differentially expressed genes in human lung adenocarcinoma cell line A549 infected with lentivirus expressing either Scr-shRNA (purple) or GMDS-shRNA (red) with the criteria P < 0.05 and ▏fold change ▏ > 1.5. Genes and samples were listed in rows and columns, respectively. A colour standard for normalized expression data was shown at the bottom of the microarray heatmap (green represents downregulated genes while red represents upregulated genes). b Gene expression changes identified in microarray were confirmed using real-time quantitative PCR for selected genes CASP8, MAP3K7, CDKN1A, FAS, JUN, DDIT3, VEGFA, SKA1 and MAD2L1 in human lung adenocarcinoma cell line A549 infected with lentivirus expressing either Scr-shRNA or GMDS-shRNA. Histogram shown here was one out of three independent experiments (p < 0.01) and normalized to GAPDH. c Protein level of FAS, VEGFA, DDIT3, JUN and CDKN1A in human human lung adenocarcinoma cell line A549 infected with lentivirus expressing either Scr-shRNA or GMDS-shRNA. GAPDH was used as internal control. d Caspase3/7 activity analysis in A549 cells and H1299 cells infected with lentivirus expressing either Scr-shRNA or GMDS-shRNA. Data shown are the mean ± SEM of caspase3/7 activity from three independent experiments (**, p < 0.01)