Immunoblots were performed following standard procedures24 (link). Specific antibodies against HDAC6 (7558 S Cell Signalling), acetyl-α-tubulin (ab24610, Abcam), α-tubulin (ab52866, Abcam), acetyl-histone H3-lys9 (9649, Cell Signaling), histone H3 (NB500-171, Novus), PARP (ab32064, Abcam), BMI-1 (05-637, Millipore), SOX2 (AB5603, Millipore), SOX9 (AB5535, Millipore), and β-actin (A5441, Sigma) were used in the study. For secondary antibodies, horseradish peroxidase (HRP)-linked anti-rabbit (7074S, Cell Signalling) or anti-mouse (7076S, Cell Signalling) were used. Detection was performed by chemiluminiscence using NOVEX ECL Chemi Substrate (ThermoFisher).
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