Figure 1From: Proteinase-activated receptor 4 stimulation-induced epithelial-mesenchymal transition in alveolar epithelial cellsTypical phase contrast images of primary cultured mouse alveolar epithelial cells. Epithelial cells were treated for 72 h without agonist (control) or with thrombin (1 U/ml), PAR4 agonist peptide (AYPGKF-NH2, 100 μM) or TGF-β (5 ng/ml).Back to article page