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Abstract
Fudosteine is a novel mucoactive agent, although little is known about how fudosteine decreases mucin production. The present study examined the effects of fudosteine on MUC5AC mucin synthesis and cellular signalling. An animal model of lipopolysaccharide (LPS)-induced inflammation and a bronchial epithelial cell line model of tumour necrosis factor (TNF)-alpha-induced inflammation were used. Fudosteine was administered before stimulation with LPS or TNF-alpha. The MUC5AC mucin levels were assayed and the expression of the MUC5AC gene was measured. Western blotting was carried out for the detection of phosphorylated epidermal growth factor receptor (p-EGFR), phosphorylated p38 mitogen-activated protein kinase (p-p38 MAPK) and phosphorylated extracellular signal-related kinase (p-ERK). MUC5AC mucin synthesis and the expression of the MUC5AC gene were increased by LPS in rats or TNF-alpha in NCI-H292 cells; these effects were inhibited by fudosteine treatment. After stimulation with LPS or TNF-alpha, the expression of p-EGFR, p-p38 MAPK and p-ERK were detected. Fudosteine treatment reduced the expression levels of p-p38 MAPK and p-ERK in vivo and of p-ERK in vitro. The present results suggest fudosteine inhibits MUC5AC mucin hypersecretion by reducing MUC5AC gene expression and the effects of fudosteine are associated with the inhibition of extracellular signal-related kinase and p38 mitogen-activated protein kinase in vivo and extracellular signal-related kinase in vitro.
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Affiliation(s)
- C K Rhee
- Dept of Internal Medicine, St Mary's Hospital, The Catholic University Medical College, #62 Yeoi-Do Dong, Young Dung Po Gu, Seoul, Korea
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Kim SJ, Kang CM, You MB, Yoon HK, Kim YK, Kim KH, Moon HS, Park SH, Song JS. IP-10 Decreases TNF-α Induced MUC5AC Expression in Human Airway Epithelial Cells: a Possible Relation with Little Sputum Production in Idiopathic Pulmonary Fibrosis. Tuberc Respir Dis (Seoul) 2008. [DOI: 10.4046/trd.2008.64.5.347] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Seung Joon Kim
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Chun Mi Kang
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Moon Bin You
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyung Kyu Yoon
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Young Kyoon Kim
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kwan Hyoung Kim
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hwa Sik Moon
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sung Hak Park
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jeong Sup Song
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Chae SY, You MB, Kang KH, Lee BS, Chae EH, Joo EH, Kim MC, Cho WH, Oh YL, Lee SI, Kim HJ, Lee HJ. A case of abnormally exposed nodular shaped-bronchial vessel occurred massive hemorrhage during bronchoscopy. Tuberc Respir Dis (Seoul) 2002. [DOI: 10.4046/trd.2002.53.2.216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Soo Youb Chae
- Department of Internal medicine, Seoul Adventist Hospital, Seoul, Korea. Hi Kim
| | - Moon Bin You
- Department of Internal medicine, Seoul Adventist Hospital, Seoul, Korea. Hi Kim
| | - Ki Hoon Kang
- Department of Internal medicine, Seoul Adventist Hospital, Seoul, Korea. Hi Kim
| | - Byung Soo Lee
- Department of Internal medicine, Seoul Adventist Hospital, Seoul, Korea. Hi Kim
| | - Eun Ha Chae
- Department of Internal medicine, Seoul Adventist Hospital, Seoul, Korea. Hi Kim
| | - Eun Hyun Joo
- Department of Internal medicine, Seoul Adventist Hospital, Seoul, Korea. Hi Kim
| | - Myung Chan Kim
- Department of Internal medicine, Seoul Adventist Hospital, Seoul, Korea. Hi Kim
| | - Wook Hyun Cho
- Department of Internal medicine, Seoul Adventist Hospital, Seoul, Korea. Hi Kim
| | - Yong Leul Oh
- Department of Internal medicine, Seoul Adventist Hospital, Seoul, Korea. Hi Kim
| | - Soon Il Lee
- Department of Internal medicine, Seoul Adventist Hospital, Seoul, Korea. Hi Kim
| | - Hui-Jung Kim
- Department of Internal medicine, Seoul Adventist Hospital, Seoul, Korea. Hi Kim
| | - Hyo Jin Lee
- Department of Anatomical Pathology, Seoul Adventist Hospital, Seoul, Korea
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