Research Article

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

Figure 7

Breast cancer stem cells were attracted by BPMNs. (a) The proportion of CD44+/CD24- cells in the metastatic MCF-7 cells and ALDH1A1+ subpopulation in MDA-MB-231 and MDA-MB-453 cells was much higher than those in the control groups. (b) The percentage of cancer stem cells was significantly increased by the BPMNs in all three types of cancer cells. In particular, stem-like cells in metastatic MDA-MB-231, MCF-7, and MDA-MB-453 cells increased by approximately 63.47%, 149.48%, and 127.60%, respectively, compared to controls (). BPMNs in this detection were collected from the coculture system on day 7. Data are presented as the (). and . BPMNs: bony premetastatic niches; ALDH1A1: Aldehyde Dehydrogenase 1 Family Member A1.
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