Korean J Physiol Pharmacol.
2006 Dec;10(6):317-321.
Glycyrrhizin and Morroniside Stimulate Mucin Secretion from Cultured Airway Epithelial Cells
- Affiliations
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- 1Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, Korea. LCJ123@cnu.ac.kr
- 2Department of Food Science and Nutrition, Andong National University, Andong, Korea.
- 3Department of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea.
- 4Department of Oriental Medicine, College of Oriental Medicine, Daejeon University, Daejeon, Korea.
- 5Department of Oriental Medicine, College of Oriental Medicine, Dongguk University, Gyeoungju, Korea.
Abstract
- In this study, we investigated whether glycyrrhizin, prunetin and morroniside affect mucin secretion from cultured airway epithelial cells and compared the possible activities of these agents with the inhibitory action on mucin secretion by poly-L-lysine (PLL) and the stimulatory action by adenosine triphosphate (ATP). Confluent primary hamster tracheal surface epithelial (HTSE) cells were metabolically radiolabeled using (3)H-glucosamine for 24 h and chased for 30 min in the presence of varying concentrations of each agent to assess the effects on (3)H-mucin secretion. The results were as follows: 1) glycyrrhizin and morroniside increased basal mucin secretion from airway; 2) prunetin did not affect basal mucin secretion; 3) glycyrrhizin did not inhibit ATP-induced mucin secretion. We conclude that glycyrrhizin and morroniside can increase basal mucin secretion, by directly acting on airway mucin-secreting cells and suggest that two compounds be further investigated for the possible use as mild expectorants during the treatment of inflammatory airway diseases.
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