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The protein level of β-catenin by western blot (A–B) and immunofluorescence (C). (D–E) The DKK1 protein level was detected by western blot. Statistical results from the densitometric measurements after normalization against β-actin were calculated as the mean ± SD (n = 6). Values are expressed as a percentage of the corresponding control value. **p < 0.01, *p < 0.05.
