Figure 2. KCTD12 suppresses the stemness of CRC cells.
(A) KCTD12 protein was analyzed by Western blotting in the indicated CRC cell lines. (B) The indicated stable cell lines with silencing or overexpression of KCTD12 were analyzed by Western blotting. α-tubulin or HSP70 was used as the loading control. (C-E) CD44, CD133 and CD29 levels were analyzed by Western blotting, qRT-PCR and flow cytometry, in the indicated stable cell lines. Red lines indicating the mean intensity of fluorescence of CD44+ or CD133+ were quantified by Flow-J software in the flow cytometry analysis. The mean intensity of fluorescence of CD44+ or CD133+ was calculated in triplicates. (F,G) Images and quantification of the number and size of spheres formed from the indicated stable cell lines in the absence of serum for 7 days. Original magnification in F, 40×(upper), 400×(lower). Original magnification in G, 40×. Scale bars, 100 μm. The results are presented as the means ± SD, and all data are representative of three independent experiments. *P < 0.05, **P < 0.01.