Cyclic stretch induced IL-33 production through HMGB1/TLR-4 signaling pathway in murine respiratory epithelial cells
Nuclear and cytoplasm protein fractions of MLE-12 cells with (cyclic S) or without (con) 6h stretch were isolated, and mIL-33 in nucleus and cytoplasm were measured by Western blot (A) or ELISA (B). Lamin B and β-actin (A) served as a loading control for nucleus and cytoplasmic protein, respectively. **P<0.01, ***P<0.001 compared with control (con). Each stretching group collected from three wells for a single experiment, the bar graphs illustrate data representative of three independent experiments.