Fig. 2.

Expression of SFRP1 in six human colorectal cancer cell lines. **P < 0.01, compared with sw480 cell line. a Relative mRNA expression of SFRP1 by RT-PCR. b Relative protein expression of SFRP1 by Western blot. RT-PCR and western blot were performed on six human colorectal cancer lines. GAPDH was used as a control for cDNA synthesis. SFRP1 mRNA expression was significantly reduced in human sw1116 cells, while it was significantly overexpressed in human caco-2 cells