A water extract of Samchulkunbi-tang attenuates airway inflammation by inhibiting inos and MMP-9 activities in an ovalbumin-induced murine asthma model.

A water extract of Samchulkunbi-tang attenuates airway inflammation by inhibiting inos and MMP-9 activities in an ovalbumin-induced murine asthma model.
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DOI:
10.1186/1472-6882-12-257
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发表时间:
2012-12-17
影响因子:
--
通讯作者:
Shin HK
Shin HK
中科院分区:
医学3区
文献类型:
--
作者:
Lee MY;Shin IS;Lim HS;Shin HK

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在这项研究中,我们研究了三出昆必汤水提取物(SCTE)对已建立的卵清蛋白(OVA)诱发过敏性哮喘小鼠模型的影响。测量了 SCTE 对 Th1 和 Th2 细胞因子、嗜酸细胞趋化因子、总免疫球蛋白 E 和 OVA 特异性免疫球蛋白 E 的产生、诱导型一氧化氮合酶表达以及基质金属蛋白酶 9 活性的影响。在第 0 天和第 14 天,通过腹膜内注射 20 μg 卵清蛋白 (OVA) 致敏,卵清蛋白 (OVA) 乳化于 2 mg 氢氧化铝的 200 μL PBS 缓冲液中。在第 21、22 和 23 天,小鼠气道暴露于 OVA(1%,w/v,PBS 溶液)1 小时。从第 18 天到第 23 天,每天给小鼠口服 SCTE,剂量为 200 和 400 mg/kg。SCTE 减少了支气管肺泡灌洗液中炎症细胞、细胞因子和趋化因子的数量,以及小鼠肺组织中 iNOS 表达和 MMP-9 活性。使用苏木精和伊红以及高碘酸希夫染色的组织学研究表明,SCTE 显着抑制 OVA 诱导的肺组织炎症细胞浸润和气道杯状细胞增生。 SCTE 还降低了刀豆蛋白 A 刺激的脾细胞中 IL-4 和 IL-13 的表达。这些结果与用孟鲁司特作为阳性对照获得的结果相似。总的来说,这些结果表明 SCTE 凭借其抗炎活性可能是治疗过敏性气道炎症的有效口服疗法。
In this study, we investigated the effect of Samchulkunbi-tang water extract (SCTE) in an established mouse model of ovalbumin (OVA)-induced allergic asthma. The effects of SCTE on the production of Th1 and Th2 cytokines, eotaxin, and total and OVA-specific immunoglobulin E, inducible nitric oxide synthase expression, and matrix metalloproteinase-9 activity were measured. Mice were sensitized on days 0 and 14 with an intraperitoneal injection of 20 μg ovalbumin (OVA) emulsified in 2 mg aluminum hydroxide in 200 μL PBS buffer. On days 21, 22, and 23, mice received an airway exposure to OVA (1%, w/v, in PBS) for 1 h. SCTE was administered orally to mice at doses of 200 and 400 mg/kg per day from days 18 to 23. SCTE reduced the number of inflammatory cells, cytokines, and chemokines in bronchoalveolar lavage fluids and iNOS expression and MMP-9 activity in mouse lung tissue. Histological studies using hematoxylin & eosin and periodic acid-schiff staining showed that SCTE substantially inhibited OVA-induced inflammatory cell infiltration in lung tissue and goblet cell hyperplasia in the airway. SCTE also reduced IL-4 and IL-13 expression in concanavalin-A-stimulated splenocytes. These results were similar to those obtained with montelukast as a positive control. Collectively, these results suggest that SCTE may be an effective oral treatment for allergic airway inflammation by virtue of its anti-inflammatory activity.
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