However, the expression levels of CCK-B receptor in normal gastric tissues were higher than those in other groups (P<0.05), and its expressions did not correlate with the differentiation and metastasis of gastric cancer (P>0.05).
The highest incidence of CCK(2)R expression in MTCs was observed in early-tumor stages, whereas CCK(2)Rcould not be detected in advanced or metastasized tumors.