(A) Immunoblotting of SH-SY5Y cells stably expressing AR-24Q (SH24Q) or AR-97Q (SH97Q) for Dnmt1, Dnmt3a and Dnmt3b. (B) Densitometry quantification showing that Dnmt1 level was up-regulated in SH97Q cells compared with SH24Q cells (n = 3). 