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Characterization of isolated breast myoepithelial cells and control luminal epithelial cells. The left column shows the reactivity pattern of CALLA-isolated cells and the right column demonstrates control EMA-isolated cells. The CALLA-isolated cells express CK14 but lack CK18 and EMA, and show punctate staining for β4-integrin (A–D). The EMA-isolated cells lack CK14 but express CK18 and EMA with no detectable β4-integrin (E–H). Scale bar, 25 μm.
