We first used GEPIA2 database (http://gepia2.cancer‐pku.cn/), a web‐based tool for gene expression on TCGA and GTExdata, to analyse the expression of IL-6 in pancreatic adenocarcinoma (PAAD) and found a higher expression of IL-6 in PC (Figure 5(b)). Here, IL6 is linked to pancreatic adenocarcinoma.