Knockdown of lncRNA ATB leads to downregulation of p38 and N-cadherin expression. (A) The protein expression levels of N-cadherin and E-cadherin were detected by western blotting in lung cancer cells with and without ATB knockdown. (B) The protein expression level of p38 in lung cancer cells with and without ATB knockdown was detected by western blotting. LncRNA, long non-coding RNA; NC, negative control; sh, short hairpin RNA; N-cad, N-cadherin; E-cad, E-cadherin.