Fig. 6From: Transcriptional factor six2 promotes the competitive endogenous RNA network between CYP4Z1 and pseudogene CYP4Z2P responsible for maintaining the stemness of breast cancer cellsTranscriptional factor six2 promotes the stemness of breast cancer cells in vivo. a–c Images (a, b) and number (c) of tumors harvested when serially diluted MCF-7, MCF-7-six2, and MCF-7-Plko-six2 were seeded. d Weight of tumors harvested when serially diluted cells depicted in a were seeded, the data are presented as the means ± SDs, *P < 0.05, **P < 0.01, #P < 0.05 vs. MCF-7 group. e–g Images (e, f) and number (g) of tumors harvested when serially diluted MDA-MB-231, 231-six2, and 231-Plko-six2 were seeded. h, i Pr values, associated probabilities (h), and TIC (tumor-initiating cell) frequencies (i) of cells depicted in eBack to article page