Fig. 5

SHP2 facilitates the CXCL8 secretion of EGFR T790M mutant LUAD. A Differentially expressed mRNA in inhibited, over-expressed and parental PC9GR cells in plot of secreted signaling molecule, a subset of 32 significant genes were identified with an FDR of < 0.05. B mRNA expression of CXCL8 and IL-6 genes showed significant diversity among the three groups, while TGF-β1 mRNA was not significantly altered. Meanwhile the correlation analysis implied a significant correlation coefficient of r = 0.9253 between CXCL8 and SHP2, the relationship of IL-6 and SHP2 was conferred a r = 0.8501. For NGS data analysis, three replicates for each biological group were included in the analysis. C The concentration of CXCL8 in the culture medium of SHP2 over-expressing PC9GRcells was significantly higher than that of parental cells, while the CXCL8 in the supernatant of SHP2 inhibited PC9GR cells was significantly reduced. D Activated ERK, AKT and RelA/p65 were significantly up-regulated in SHP2 over-expressing cells than parental cells, and down-regulated in SHP2 knock-down cells. Each experiment was repeated 3 times