10017
Among mucus - secreting cells , the gastric gland mucous cells , Brunner ' s glands , accessory glands of pancreaticobiliary tract , and pancreatic ducts exhibiting gastric metaplasia are unique in that they express class III mucin identified by paradoxical Con A staining composed of periodate oxidation , sodium borohydride reduction , Con A , and horseradish peroxidase reaction .
 class III mucin, Con A, Con A, horseradish peroxidase
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 class III mucin, Con A, Con A, horseradish peroxidase