Fig. 8. EGFR signaling regulates IPO13 expression in EGFR mutation-positive NSCLC.
A Gene Set Enrichment Analysis (GSEA) showed genes that are positively correlated to high IPO13 expression on the left side (red), while genes with negative correlation are shown on the right side (blue). B IHC analysis of IPO13 expression in NSCLC tumor tissues with various EGFR status (wild and mutant). Scale bar, 100 μm. C Human lung cancer cells H1975 (L858R and T790M) and H1299 (wild type) treated with different concentrations of osimertinib for 24 h; then MTT assay was used to test the viability of the cells. Data presented as mean ± S.D. *P < 0.05, **P < 0.01, ***P < 0.001. D The expression of IPO13 protein and phosphorylation levels of EGFR in treated cells detected by immunoblot assay. E Significant pathways obtained by GSEA that strongly correlated with IPO13 expression, including apical junction, glycolysis, and DNA repair.