Fig. 3: SDF-1 triggers CAF-induced EMT and invasion in lung cancer cells.

a, b SDF-1 protein levels in the conditioned medium quantified by ELISA. a Five groups of CAF and corresponding NF cultured separately for 72 h. b Lung cancers cells incubated with DMEM, NF-CM, CAF-CM, and CAF-CM + SDF-1 neutralising antibody for 24 h. c Western blotting analysis of epithelial and mesenchymal marker expression. d Transwell assay examining the invasiveness of cells; scale bar: 200μm.The error bars represent suggested the standard errors of the mean of the three individual experiments. *p < 0.05.