This work was supported by the grants from the National Natural Science Foundation of China (no. 30600636) and Innovation Foundation of Central South University for Postgraduates.
Wnt inhibitory factor-1 (WIF-1) acts as a Wnt antagonist and tumor suppressor, but hypermethylation of WIF-1 gene promoter and low expression of WIF-1 activate Wnt signaling aberrantly and induce the development of ...