Fig. 1

IL-33 expression was upregulated in human HCC tissues and was associated with poor patient survival. a The representative IHC images of IL-33 expression in HCC (left-strong, moderate, weak) and in adjacent normal tissues (right-weak or negative) were presented. b IL-33 expression was frequently upregulated in 69 HCC tissues compared with that in the 64 adjacent para-carcinoma tissues. c After excluding the influence of individual differences, the expression of IL-33 was analysed in 64 paired HCC and adjacent para-cancer tissues in this dataset. d Kaplan–Meier OS and e DFS curves for 69 HCC patients were analysed based on the H-score of IL-33 staining. HCC hepatocellular carcinoma, IL-33 interleukin-33, OS overall survival, DFS disease-free survival