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Maintenance of the expression of the hPLAP enzyme by hPLAP-tg BMSCs after seeding on different biomaterials. (A) PCL membrane, (B) PCL scaffold, and (C) fibrin hydrogel. Left and middle panels show histochemical staining for hPLAP enzymatic activity of hPLAP-tg BMSCs. Right panels show morphological details of the seeded cells as observed by SEM (after 3 days of culture).
