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Phenotypic analysis for cell type-specific markers. The indicated cells were grown to 95% confluence, fixed, and stained with mAbs specific for CD31 (endothelial marker), or PAN cytokeratin (epithelial): or isotype-matched non-specific antibody controls. Detection was performed with an Alexa-Fluor-647-conjugated anti-mouse IgG antibody and is shown in orange. Nuclei were stained with DAPI (blue). Images are shown at 10× magnification.
