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Mucin 분비에 미치는 大靑龍湯 및 <石室秘?>急治法方에 대한 연구
박완열,서운교 대한한방내과학회 2006 大韓韓方內科學會誌 Vol.27 No.1
Objectives : This study was done with intend to investigate whether two oriental medical prescriptions, daecheongryong-tang (DCRT) and prescription A (P-A) significantly affect mucin release from cultured hamster tracheal surface epithelial (HTSE) cells. Methods : Confluent HTSE cells were metabolically radiolabeled with 3H-glucosamine for 24 hrs and chased for 30 min in the presence of DCRT or P-A to assess the effect of each agent on 3H-mucin release. Possible cytotoxicities of each agent were assessed by measuring lactate dehydrogenase (LDH) release. Also, the effects of DCRT and P-A on contractility of isolated tracheal smooth muscle were investigated. Results were as follows: 1. DCRT significantly inhibited mucin release from cultured HTSE cells, with significant cytotoxicity. 2. P-A significantly increased mucin release from cultured HTSE cells, with significant cytotoxicity. 3. DCRT inhibited Ach-induced contraction of isolated tracheal smooth muscle. 4. P-A also inhibited Ach-induced contraction of isolated tracheal smooth muscle. Conclusion: Results suggest that DCRT and P-A have regulating effects on mucin secretion from goblet cells. Further investigation is needed, because of the value in finding novel agents to this purpose, and these oriental medical prescriptions have potential for this role.
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청조구폐탕(淸燥救肺湯)과 이음전(理陰煎)이 호흡기 접액분비에 미치는 영향
박완열,서운교,Park, Wan-Yeol,Seo, Un-Kyo 대한한방내과학회 2008 大韓韓方內科學會誌 Vol.29 No.2
Objectives : In this study, the author tried to examine whether Cheogjogupye-tang (淸燥救肺湯, CGPT) and Yieum-jeon (理陰煎, YEJ) significantly affect in vitro and in vivo mucin secretion, MUC5AC gene expression in airway epithelial cells and contractility of isolated tracheal smooth muscle of rabbit. Materials and Methods : For in vitro experiment, confluent hamster tracheal surface epithelial (HTSE) cells were chased for 30 minutes in the presence of CGPT and YEJ to assess the effects of the agents on mucin secretion by enzyme-linked immunosorbent assay (ELISA), with removal of oriental herbal medicine extract from each agent-treated sample by centrifuge microfilter. Also, the effects of the agents on TNF-alpha or EGF-induced MUC5AC gene expression in human airway epithelial cells (NCI-H292) were investigated. Possible cytotoxicities of the agent were assessed by examining both LDH release from HTSE cells and the rate of survival and proliferation of NCI-H292 cells. For in vivo experiment, hypersecretion of airway mucin and goblet cell hyperplasia was induced by exposure of rats to $SO_2$ over 3 weeks. Effects of CGPT and YEJ orally administered for 1 week on in vivo mucin secretion from tracheal goblet cells of rats and hyperplasia of goblet cells were assessed using ELISA and histological analysis after staining the epithelial tissue with alcian blue, respectively. Also, the effects of CGPT and YEJ on contractility of isolated tracheal smooth muscle were investigated. Results : (1) CGPT significantly inhibited in vitro mucin secretion from cultured HTSE cells. However, YEJ did not affect in vitro mucin secretion; (2) CGPT and YEJ did not affect hypersecretion of in vivo mucin and hyperplasia of tracheal goblet cells; (3) CGPT and YEJ slightly increased the expression levels of TNF-alpha or EGF-induced MUC5AC gene in NCI-H292 cells; (4) CGPT and YEJ inhibited acetylcholine-induced contraction of isolated tracheal smooth muscle of rabbit; (5) CGPT and YEJ did not affect LDH release from HTSE cells and the survival and proliferation of NCI-H292 cells. Conclusion : The results from the present study suggest that CGPT and YEJ mainly affect the expression of mucin gene rather than secretion of mucin and do not show remarkable cytotoxicity to respiratory epithelial cells.
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Mucin 분비에 미치는 대청룡탕(大靑龍湯) 및 <석실비록(石室秘錄)> 급치법방(急治法方)에 대한 연구
박완열,서운교,Park, Wan-Yeol,Suh, Woon-Gyo 대한한방내과학회 2006 大韓韓方內科學會誌 Vol.27 No.1
Objectives : This study was done with intend to investigate whether two oriental medical prescriptions, daecheongryong-tang (DCRT) and prescription A (P-A) significantly affect mucin release from cultured hamster tracheal surface epithelial (HTSE) cells. Methods : Confluent HTSE cells were metabolically radiolabeled with $^3H$-glucosamine for 24 hrs and chased for 30 min in the presence of DCRT or P-A to assess the effect of each agent on $^3H$-mucin release. Possible cytotoxicities of each agent were assessed by measuring lactate dehydrogenase (LDH) release. Also, the effects of DCRT and P-A on contractility of isolated tracheal smooth muscle were investigated. Results were as follows : 1. DCRT significantly inhibited mucin release from cultured HTSE cells, with significant cytotoxicity. 2. P-A significantly increased mucin release from cultured HTSE cells, with significant cytotoxicity. 3. DCRT inhibited Ach-induced contraction of isolated tracheal smooth muscle. 4. P-A also inhibited Ach-induced contraction of isolated tracheal smooth muscle. Conclusion: Results suggest that DCRT and P-A have regulating effects on mucin secretion from goblet cells. Further investigation is needed, because of the value in finding novel agents to this purpose, and these oriental medical prescriptions have potential for this role.
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