Western blotting assay was performed as previously described46 (link). The anti-NHERF1 was purchased from Sigma-Aldrich (HPA009672, St. Louis, MO) and Becton Dickinson Labware (#611161, Billerica, MA), respectively. Anti-HA (#561) was purchased from Medical & Biological Laboratories (Nagoya, Japan). Anti-c-Myc (#ab32072) and anti-β-catenin (#ab22656) were purchased from Abcam (Cambridge, UK). Anti-GAPDH (#5174), anti-β-catenin (#9581), and anti-TCF-1 (#2206) were purchased from Cell Signaling Technology (Danvers, MA). Anti-ACTN4 was purchased from Enzo Life Sciences (#ALX-210-356, Shanghai, China) and Santa Cruz Biotechnology (#sc-134236, Santa Cruz, CA), respectively. Anti-Ki67 (#zm-0166) and horse radish peroxidase-conjugated secondary antibodies were purchased from ZSGB-BIO (Beijing, China). Infrared fluorescent dyes-conjugated secondary antibodies were purchased from LI-COR Biosciences (Lincoln, NE). IWR-1-endo (#S7086) was purchased from Selleck (Houston, TX).
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