Fig. 4

Expressions of fibroblast growth factor 10 (FGF10), FGF receptor 2 (FGFR2), SRY-box transcription factor 2 (SOX2), and SOX9 in IMR-90 cells, ex vivo fetal lungs, and fibroblasts of ex vivo fetal lungs by lipopolysaccharide (LPS). A Expressions of FGF10, FGFR2, SOX2, and SOX9 in IMR-90 cells by LPS at 0, 10, 30, and 50 μg/ml for 24 h (n = 6). B Expressions of FGF10, FGFR2, SOX2, and SOX9 in whole fetal lungs by LPS at 0, 10, 30, and 50 μg/ml for 3 days (n = 6). C Expressions of fibronectin⁺ FGF10, SOX2, and SOX9 of fetal lungs by LPS at 0 and 50 μg/ml for 3 days. DAPI (in blue). Fibronectin (in red). FGF10, SOX2, and SOX9 (in green) (n = 3). *p < 0.05