Figure 2From: Cigarette smoke induces epithelial to mesenchymal transition and increases the metastatic ability of breast cancer cellsCigarette smoke induces morphological alterations in mammary epithelial cell lines. Photomicrographs showing morphological alterations of MCF 10A cells exposed to CSE for 44 weeks, MCF-12A cells exposed to CSC for 21 weeks, and MCF7 cells exposed to CSE for 4 weeks. Inserts highlight the spindle shape of cells treated with CSE or CSC. The size bar represents 50 μm.Back to article page