KDM4C and esophageal squamous cell carcinoma: Similarly, GASC1 protein levels in ESCC and peritumor tissues were also no significant difference (P>0.05, Figures 2(c) and 2(d)), and good differentiated ESCC tissues had a lower level of GASC1 compared to medium and poor differentiated ESCC tissues (P<0.05, Figure 2(e)).