In addition, the infiltration abundance of CD8+ T cells was significantly higher in the high ENTPD1-expressing group than in the low ENTPD1-expressing group in ESCC tissues (p < 0.0001) (Figure 7b); however, there was no significant difference in normal tissues (p > 0.05) (Figure 7c). Here, ENTPD1 is linked to esophageal squamous cell carcinoma.