MBNL3 and hepatocellular carcinoma: Yuan et al recently reported that splicing factor MBNL3 modulated the alternative splicing of lncRNA PXN‐AS1, which generated 2 different isoforms of PXN‐AS1.33 PXN‐AS1‐L is one of the isoforms which contains the exon 4 and has 863 nucleotides in length, and whereas PXN‐AS1‐S is another isoform which lacks the exon 4 and has 686 nucleotides in length.33 They found PXN‐AS1‐L was upregulated in HCC tissues and had oncogenic roles in HCC.33 In this study, we focused our attention on lncRNA PXN‐AS1‐L.