We found that PTBP3 expression in BeWo cells (human placental choriocarcinoma cells) was the highest in the Human Protein Atlas (HPA) datasets, followed by K-562 (chronic myelogenous leukaemia cells) and OE19 (human oesophageal cancer cells) (Supplementary Figure S2A). This evidence concerns the gene PTBP3 and carcinoma of esophagus.