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Representative images of the epithelial (A) and mesenchymal (B) phenotypes in A549 cell line. The latter was induced through treatment with the pro-fibrotic cytokine Transforming Growth Factor Beta 1, (TGF-β1, 5 ng/mL) for 48 h. Epithelial cells exhibit regular shapes and a high degree of spatial organization, while mesenchymal ones are more variable, spindle-like and have a less organized structure.
