牛蒡子苷减轻脂多糖诱导人鼻咽上皮细胞炎症损伤的作用
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篇名: 牛蒡子苷减轻脂多糖诱导人鼻咽上皮细胞炎症损伤的作用
TITLE: Effects of arctiin relieving inflammatory injury of human nasopharyngeal epithelial cells induced by lipopolysac- charide
摘要: 目的 探讨牛蒡子苷(ARC)减轻脂多糖(LPS)诱导的人鼻咽上皮细胞NP-69炎症损伤的作用。方法采用MTS法测定0.0001、0.001、0.01、0.1、1.0、10μmol/LARC作用24h对NP-69细胞增殖的影响。采用划痕实验分别检测经0.01、0.1、1.0μmol/LARC作用24h和经0.01、0.1、1.0μmol/LARC预处理24h+1.0μg/mLLPS刺激24h后NP-69细胞的迁移情况。以LPS刺激建立NP-69细胞炎症损伤模型,检测上清液中一氧化氮(NO)、肿瘤坏死因子α(TNF-α)、白细胞介素6(IL-6)、IL-1β水平以及细胞中胞质紧密连接蛋白1(ZO-1)、β-防御素3(BD3)、Janus激酶1(JAK1)、信号转导及转录活化因子3(STAT3)mRNA和蛋白的相对表达量。结果与正常组比较,0.0001、0.001、0.01、0.1、1.0、10μmol/LARC作用24h对NP-69细胞增殖均无影响(P>0.05)。0.1、1.0μmol/LARC均可显著提高细胞的迁移率(P<0.05)。对LPS刺激NP-69细胞造成的炎症损伤,ARC(1.0μmol/L)能显著减少NO、TNF-α、IL-6的释放(P<0.05),同时能显著上调ZO-1、BD3mRNA和蛋白的表达并下调STAT3mRNA和蛋白的表达(P<0.01或P<0.05)。结论ARC具有明显减轻LPS致NP-69细胞炎症损伤的作用,并可增强炎症环境下鼻黏膜上皮屏障的物理及免疫防御功能;上述作用可能与抑制IL-6/JAK1/STAT3信号通路相关。
ABSTRACT: OBJECTIVE To investigate the effect of arctiin (ARC)relieving lipopolysaccharide (LPS)induced inflammatory injury of human nasopharyngeal epithelial cells NP- 69. METHODS The effects of 24 h treatment of 0.000 1,0.001,0.01,0.1, 1.0,10 μmol/L ARC on the proliferation of NP-69 were determined by MTS method. After 0.01,0.1,and 1.0 μmol/L ARC was applied to NP- 69 for 24 h and NP- 69 was pre-treated with 0.01,0.1 and 1.0 μmol/L ARC for 24 h,and then stimulated with 1.0 μg/mL LPS for 24 h,scratch tests were used to detect cell migration in both experiments. LPS stimulated NP- 69 to establish an inflammation injury model. The levels of nitric oxide (NO),tumor necrosis factor α(TNF-α)interleukin-6(IL-6),and IL- 1β in cell supernatants were detected ,and mRNA and protein expression of zonula oecludens protein 1(ZO-1),β-defensin 3(BD3), Janus kinase 1 (JAK1),signal transducer and activator of transcription 3 (STAT3) in cell supernatant were also detected. RESULTS Compared with normal group ,0.000 1,0.001,0.01,0.1,1.0,10 μmol/L ARC had no effect on the proliferation of NP-69 after 24 h treatment (P>0.05). ARC (0.1,1.0 μmol/L)could significantly promote the rate of cell migration (P<0.05). For the inflammatory injure of NP- 69 cells stimulated by LPS ,ARC(1.0 μmol/L)could significantly reduce the release of NO , TNF-α and IL-6(P<0.05),significantly increased mRNA and protein expression of ZO- 1 and BD 3 but decreased mRNA and protein expression of STAT 3(P<0.01 or P<0.05). CONCLUSIONS ARC has the effect of reducing the inflammatory injury of NP-69 cells induced by LPS ,promoting the physical and immune defense ability of the nasal mucosa epithelial barrierunder inflammatory environment. The mechanism of action may be related to inhibiting IL- 6/JAK1/STAT3 signaling pathway.
期刊: 2022年第33卷第12期
作者: 聂发龙,赵显芳,朱紫陌,江自鲜,代蓉,李秀芳
AUTHORS: NIE Falong ,ZHAO Xianfang ,ZHU Zimo,JIANG Zixian ,DAI Rong,LI Xiufang
关键字: 牛蒡子苷;脂多糖;NP-69细胞;炎症反应;鼻黏膜上皮屏障
KEYWORDS: arctiin;lipopolysaccharide;NP-69;inflammation;nasopharyngeal epithelial barrier
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