[Retracted] Breast Cancer Cells Metastasize to the Tissue-Engineered Premetastatic Niche by Using an Osteoid-Formed Polycaprolactone/Nanohydroxyapatite Scaffold

Figure 3

Cell viability and proliferation of hMSCs on the PCL-nHA scaffolds. Live/dead staining of hMSCs on the (a) PCL and (b) PCL-nHA scaffolds 24 h after cell seeding. Live cells are indicated by green, and dead cells are red. Scale  μm. (c) Cell growth within PCL and PCL-nHA scaffolds after 1, 3, and 7 days, as determined by MTT assay. The proliferation of hMSCs on PCL-nHA scaffolds increased significantly on days 3 and 7 (, , compared to the values of the PCL scaffolds). All data were normalized to the cell viability on PCL scaffolds on day 1. Data are presented as the (). hMSCs: human mesenchymal stem cells; PCL: polycaprolactone; nHA: nanohydroxyapatite.

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