GDF2 and hepatocellular carcinoma: We compared the gene expression profiles of HUVECs pre‐incubated with HBV‐uninfected, HBV‐infected or BMP9‐overexpressing HBV‐infected HCC cells (HepG2, HepG2.2.15 and HepG2.2.15‐BMP9 cells, respectively) for 24 h to understand the molecular mechanisms of BMP9‐induced vascular normalisation in HBV‐infected HCC.