Fig. 6

KDM4B is frequently up-regulated in colorectal tumor tissues and positive expression is correlated with an unfavorable prognosis. a and b Representative results of immunohistochemical staining for KDM4B expression in colorectal cancer tissues (a) and adjacent nontumor tissues (b). c Dot plots showing immunohistochemical scores and mean ± SD of KDM4B in colorectal tumor and NT tissues. d Kaplan-Meier survival curves of patients with colorectal cancer in the tissue microarray (n = 80) segregate into high- and low-KDM4B expression groups. e Kaplan-Meier survival curves of patients with colorectal cancer in TCGA database segregate into high- and low-KDM4B expression groups