Fig. 1From: Cigarette and IL-17A synergistically induce bronchial epithelial-mesenchymal transition via activating IL-17R/NF-κB signalingCells identification. When bronchial epithelial cells were isolated and cultured, cells were identified by immunofluorescence staining of CK-18. Cells were mainly CK-18+ staining. (× 400 magnification)Back to article page