The total proteins were extracted from the corresponding cells, loaded and separated on 10% SDS-PAGE and then transferred to PVDF membranes (Millipore, Billerica, MA, USA). The primary antibodies used for the analysis included mouse anti-KAT6B monoclonal Ab (Abnova, Taiwan, China); rabbit anti-phospho-PI3K p85 (Tyr458) polyclonal Ab, mouse anti-phospho-Akt (Thr308) monoclonal Ab, rabbit anti-PTEN monoclonal Ab and mouse anti-κBα (Ser32/36) monoclonal Ab (Cell Signaling Technology, Danvers, MA, USA); mouse anti-tubulin monoclonal Ab (Santa Cruz, Dallas, Texas, USA).
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