DNMT and STAT3 role in miR-29a low-expression. (A) DNMT1 and DNMT3b endogenous expression in ALK⁺ ALCL cell lines were detected by Western blotting following NPM-ALK or STAT3 knockdown by siRNA. (B) RQ miR-29a after inhibition of STAT3 in Karpas-299 and SU-DHL-1 cells. P for siCtl vs siSTAT3 in Karpas-299 (*P < .05). NS: not significant.