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Expression of α-smooth muscle actin (SMA) in basal cell carcinoma and CAF. The figure demonstrates SMA-positive stroma (red) and negative control (NC). Cultured CAF from the human basal cell carcinoma visualised by detection of α-smooth muscle actin (red signal) in the extracellular matrix rich in fibronectin (green signal). Nuclei are counterstained by DAPI (blue signal). The bar represents 500 and 50 μm, respectively. Specimens were prepared in the authors’ laboratory.
