Figure 1.
Migration, invasion, and spheroid formation in epithelial ovarian carcinoma cells with ovarian cancer stromal progenitor cells (OCSPCs). (A upper panel) Migration and (A middle panel) invasiveness of SKOV3 or SKOV3-green fluorescent protein (GFP) cells/mesenchymal-like OCSPCs (msc-OCSPCs) compared with SKOV3 or SKOV3-GFP cells/epithelial-like OCSPCs (epi-OCSPCs) and normal ovarian stromal progenitor cells, which were derived from benign ascites. OCSPCs were derived from malignant ascites. (A lower panel) Spheroid formation from SKOV3 cells or SKOV3-GFP cells cocultured with mesenchymal-like OCSPCs (SKOV3/msc-OCSPCs) compared with spheroid formation from SKOV3 cells or SKOV3-GFP cells cocultured with epi-OCSPCs cells (SKOV3/epi-OCSPCs) for 7 or 14 days. (B right) Collagen alpha-3 (VI; COL6A3) expression in OCSPCs following the shRNA knockdown of COL6A3 RNA. m: msc-OCSPCs; m-v: msc-OCSPCs/mockCOL6A3; m22-26: msc-OCSPCs/shCOL6A3. (B left) Invasiveness of SKOV3 cocultured with msc-OCSPCs or msc-OCSPCs/shCOL6A3 cells for 1-3 days.