For immunoblotting of astrocyte elevated gene-1 (AEG-1), enhancer of zeste homolog 2 (EZH2) and GAPDH, rabbit EZH2 antibody (#5246) was purchased from Cell Signaling Technology, Inc., and rabbit AEG-1 antibody (abs124058) and mouse GAPDH antibody (ab127428) were obtained from Absin Bioscience, Inc. (Shanghai, China). Western blotting was performed as previously described (19 (link)).