As previously described [14 (link)], WB analysis was used to detect protein expression. RIPA Lysis Buffer (Beyotime) was used to extract protein. The proteins were resolved by SDS-PAGE gel and transferred to PVDF membrane. The membrane was incubated with anti-PDK1 (1:2,000, Sigma-Aldrich) or anti-β-actin (1:1,000, Sigma-Aldrich), and then incubated with goat anti-mouse IgG (1:20,000, Biovision). Using the ECL luminescent solution (Meilunbio), the protein signals were visualized.