Fig. 4
CoCl2 increases the migration and invasion of breast cancer cells. a Representative images of the wound-healing assay for MCF-7 cells at different times (×40). b MCF-7 cell migration is shown as a wound-healing index quantified by measuring at least three different wound areas. c Representative images of the wound-healing assay for MDA-MB-231 cells at different times (×40). d Quantitative data of MDA-MB-231 cell migration between control cells and PGCCs with budding. e, g Transwell migration and invasion assays were performed in control MCF-7 and MDA-MB-231 cells and PGCCs with budding (×100). Upper panels indicate the migration and lower panels show cell invasion. f, h Quantitative results of transwell migration and invasion assay in MCF-7 and MDA-MB-231 cells