ANPEP and inflammatory bowel disease: The activity of CA1, protein S100A16 (S100A16), beta-site APP-cleaving enzyme 2 (memapsin 1) (beta-secretase 2) (BACE2), and mucin-1 (MUC1) was increased in the IBD enteroids compared to the tumor enteroids, while the activity of bile acid-CoA:amino acid N acyltransferase-like (BAAT), annexin A13 (ANXA13), and aminopeptidase N (ANPEP) was decreased (Figure 6).