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Morphology (×100) of the DU145 and DU145-Id4 cell lines in culture. (A) Parental DU145 cells show a more mesenchymal morphology that is long and spindle shaped. (B & C) The DU145-Id4 cells appear more like epithelial cells that tend to adhere to each other hence appear as clusters. The DU145-Id4 cell line shown above is at passage 28.
