Anticarcinogenic Effect of Panax ginseng C.A. Meyer and Identification of Active Compounds
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2017年3月第24卷第3期 中国中医药信息杂志 ·53·
参芪抑瘤方药物血清对胃癌MGC-803细胞增殖的影响
马春林1,吴红彦1,2,3,李海龙1,2,陈杰1,张宣1,李红亮1
1.甘肃中医药大学,甘肃 兰州 730000;
2.甘肃省中医方药挖掘和创新转化重点实验室,甘肃 兰州 730000;
3.甘肃省中药新产品创制工程实验室,甘肃 兰州 730000
摘要:目的 观察参芪抑瘤方药物血清对胃癌MGC-803细胞增殖的影响,探讨其相关机制。方法 以参
芪抑瘤方不同浓度药物血清干预胃癌MGC-803细胞后,MTT法检测细胞增殖,流式细胞仪检测细胞周期,qRT-PCR检测CDKN1B、CDKN1C基因表达,Western blot检测p27、p57蛋白表达。结果 3%、5%、10%药
物血清作用于MGC-803细胞24、48、72 h,细胞增殖水平显著降低(P<0.01),且与时间和剂量呈依赖关系;3%、5%、10%药物血清作用于MGC-803细胞24 h后,G0/G1期细胞增多,S期细胞减少;qRT-PCR检测结
果显示,与对照组和空白血清组比较,药物血清各剂量组MGC-803细胞CDKN1B、CDKN1C mRNA表达显
著上调(P<0.01);Western blot检测结果显示,与对照组比较,药物血清各剂量组MGC-803细胞p27、p57
蛋白表达显著上调(P<0.01)。结论 参芪抑瘤方药物血清可抑制胃癌MGC-803细胞的增殖,其机制可能是
通过调节CDKN1B、CDKN1C mRNA和蛋白表达,进而干预细胞周期。 关键词:参芪抑瘤方;药物血清;胃癌细胞;细胞增殖;细胞周期
DOI:10.3969/j.issn.1005-5304.2017.03.013 中图分类号:R285.5 文献标识码:A 文章编号:1005-5304(2017)03-0053-04
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2023年第34卷第2220233422 2701 ·药学研究·艳山姜总黄酮改善无水乙醇致胃黏膜细胞损伤的作用及机制 Δ魏晴*,薛娟,梁珊珊 #(贵州中医药大学药学院,贵阳 550025)中图分类号 R965 文献标志码 A 文章编号 1001-0408(2023)22-2701-07DOI 10.6039/j.issn.1001-0408.2023.22.03摘要 目的 探讨艳山姜总黄酮通过微RNA-146a-5p(miR-146a-5p)对无水乙醇诱导的胃黏膜细胞损伤的改善作用及潜在机制。方法 以人胃黏膜细胞GES-1为对象,以无水乙醇诱导建立急性胃溃疡细胞模型,在考察不同质量浓度艳山姜总黄酮对细胞活力影响及筛选作用浓度的基础上,检测细胞中miR-146a-5p的相对表达量,细胞中肿瘤坏死因子受体关联因子6(TRAF6)、核因子κB p65(NF-κB p65)、肿瘤坏死因子α(TNF-α)蛋白的表达水平,以及细胞上清液中白细胞介素1β(IL-1β)、IL-6、前列腺素E2(PEG2)水平;验证miR-146a-5p与TRAF6的靶向关系,并观察过表达miR-146a-5p、敲减TRAF6对模型细胞上清液中IL-1β、IL-6、PEG2水平的影响,以及敲减miR-146a-5p对艳山姜总黄酮抗胃溃疡作用的影响。结果 与空白组比较,模型组细胞中miR-146a-5p的相对表达量和上清液中PGE2水平均显著降低(P<0.01),细胞中TRAF6、NF-κB p65、TNF-α蛋白的表达水平和上清液中IL-1β、IL-6水平均显著升高(P<0.01)。与模型组比较,模型+艳山姜总黄酮(60 mg/L)组细胞中miR-146a-5p的相对表达量和上清液中PGE2水平均显著升高(P<0.01),细胞中TRAF6、NF-κB p65、TNF-α蛋白的表达水平和上清液中IL-1β、IL-6水平均显著降低(P<0.05或P<0.01)。miR-146a-5p与TRAF6存在靶向关系且呈负相关;过表达miR-146a-5p或敲减TRAF6后,细胞上清液中IL-1β、IL-6水平均显著降低,PGE2水平显著升高(P<0.05)。敲减miR-146a-5p后,艳山姜总黄酮作用下的细胞上清液中IL-1β、IL-6水平和细胞中TRAF6蛋白的表达水平均显著升高,PGE2水平显著降低(P<0.05)。结论 艳山姜总黄酮对无水乙醇致胃黏膜细胞损伤有一定的改善作用,其机制可能与上调miR-146a-5p的表达、抑制TRAF6的表达,进而抑制相关炎症因子的分泌有关。关键词 艳山姜总黄酮;胃黏膜细胞;微RNA-146a-5p;肿瘤坏死因子受体关联因子6;抗胃溃疡作用Improvement effect and mechanism of total flavonoids from Alpinia zerumbet on gastric mucosa injury induced by absolute ethanolWEI Qing,XUE Juan,LIANG Shanshan(College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China)ABSTRACTOBJECTIVE To explore the improvement effect and potential mechanism of total flavonoids from Alpinia zerumbet on gastric mucosa injury induced by absolute ethanol through microRNA-146a-5p (miR-146a-5p). METHODS Using human gastric mucosa GES-1 cells as objects, the acute gastric ulcer model was established by absolute ethanol; based on the investigation of the effects of different concentrations of total flavonoids from A. zerumbet on cell activity and the selection of action concentration, the relative expression level of miR-146a-5p in GES-1 cells was detected, the protein expressions of tumor necrosis factor (TNF) receptor-associated factor 6(TRAF6), nuclear factor-κB p65 (NF-κB p65) and TNF-α were detected, and the levels of interleukin-1β (IL-1β), IL-6 and prostaglandin E2 (PGE2) in cell supernatant were determined. The targeting relationship between miR-146a-5p and TRAF6 was verified; the effects of overexpressed miR-146a-5p and TRAF6 knockdown on the levels of IL-1β, IL-6 and PEG2 in supernatant of model cells as well as the effects of miR-146a-5p knockdown on anti-gastric ulcer effect of total flavonoids from A. zerumbet were observed. RESULTS Compared with the blank group, the relative expression of miR-146a-5p in cells and the level of PGE2 in cell supernatant were decreased significantly in the model group (P<0.01), while the protein expressions of TRAF6, NF-κB p65 and TNF-α in cells and the levels of IL-1β and IL-6 in cell supernatant were increased significantly (P<0.01). Compared with the model group, the relative expression of miR-146a-5p in cells and the level of PGE2 in cell supernatant were increased significantly in model+A. zerumbet total flavonoids (60 mg/L) group (P<0.01), while the protein expressions of TRAF6, NF-κB p65 and TNF-α in cells and the levels of IL-1β and IL-6 in cell supernatant were decreased significantly (P<0.05 or P<0.01). There was a targeted relationship and a negative correlation between miR-146a-5p and TRAF6. After overexpression of miR-146a-5p or TRAF6
本研究还将血清Lp-PLA2、RDW用于AIS的诊断
分析,ROC曲线分析显示,二者联合应用诊断AIS的
AUC达到0.961,明显高于单项指标应用,表明血清Lp
-PLA2联合RDW对AIS具有较高的诊断效能。
4 结论
综上所述,Lp-PLA2、RDW均与AIS的发生发展、
病情严重程度关系密切,二者联合用于AIS诊断中具有
较高的诊断效能。临床在诊疗疑似AIS患者时可密切
关注患者的Lp-PLA2、RDW水平,发挥其早期诊断、病
情严重程度监测的积极作用,使患者获得最佳预后。
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