Fig. 1From: Spheres derived from the human SN12C renal cell carcinoma cell line are enriched in tumor initiating cellsMicrograph representative of adherent cells and spheroid cells generated from SN12C cells by SFM. a The adherent cells. Bar = 25 μm. b Examples of spheroid cells isolated from SN12C adherent cells which were placed in the serum-free culture. Bar = 50 μm. c Spheres passaged continuously for three times. Representative staining of three independent experiments is shownBack to article page