Glycosaminoglycans in the lamina propria and submucosal layer of the monkey palatal mucosa

Abstract

We compared glycosaminoglycans (GAG) in the lamina propria, fatty zone and glandular zone of the submucosal layer of the palatal mucosa. The GAG were chemically analyzed, separated by electrophoresis, and the results obtained were compared. The GAG content of the lamina propria and the glandular zone was higher than that of the fatty zone. Four GAG, hyaluronic acid, dermatan sulfate, chondrotin sulfate and heparan sulfate, were found in the palatal mucosa. Each layer had all four components. Dermatan sulfate was the predominant GAG in the lamina propria and gladular zone, followed by hyaluronic acid. Hyaluronic acid was the predominatnt GAG in the fatty zone of the submucosal layer, followed by dermatan sulfate.