滋阴明目方调控GRP78/IRE1/ATF6通路改善视网膜色素变性的体外研究

R285.5; 目的 探讨滋阴明目方改善视网膜色素变性的作用机制.方法 将 20 只SD大鼠按随机数字表法分为空白血清组和滋阴明目方含药血清组,每组10 只.滋阴明目方含药血清组大鼠灌胃滋阴明目方(46.875 g/kg),空白血清组大鼠灌胃蒸馏水.制备滋阴明目方含药血清及空白血清,采用液质联用技术分析滋阴明目方含药血清的化学成分.采用衣霉素干预人视网膜色素上皮(ARPE-19)细胞构建内质网应激损伤模型.CCK-8 法筛选滋阴明目方含药血清最优体积分数.将ARPE-19 细胞分为空白组、模型组、空白血清组、滋阴明目方含药血清组、牛磺熊去氧胆酸组,分别进行干预.干预24 h后,采用多时间动态细...

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Published in北京中医药大学学报 Vol. 47; no. 6; pp. 773 - 781
Main Authors 欧晨, 宋厚盼, 谢薇, 彭俊, 曾梅艳, 彭清华
Format Journal Article
LanguageChinese
Published 湖南中医药大学%湖南中医药大学 01.06.2024
湖南中医药大学第一附属医院 长沙 410007
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ISSN1006-2157
DOI10.3969/j.issn.1006-2157.2024.06.006

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Abstract R285.5; 目的 探讨滋阴明目方改善视网膜色素变性的作用机制.方法 将 20 只SD大鼠按随机数字表法分为空白血清组和滋阴明目方含药血清组,每组10 只.滋阴明目方含药血清组大鼠灌胃滋阴明目方(46.875 g/kg),空白血清组大鼠灌胃蒸馏水.制备滋阴明目方含药血清及空白血清,采用液质联用技术分析滋阴明目方含药血清的化学成分.采用衣霉素干预人视网膜色素上皮(ARPE-19)细胞构建内质网应激损伤模型.CCK-8 法筛选滋阴明目方含药血清最优体积分数.将ARPE-19 细胞分为空白组、模型组、空白血清组、滋阴明目方含药血清组、牛磺熊去氧胆酸组,分别进行干预.干预24 h后,采用多时间动态细胞功能分析系统对细胞进行形态观察,CCK-8 法检测各组细胞存活率,Annexin V-FITC/PI法检测各组细胞凋亡率,蛋白质印迹法和微滴式数字PCR法检测各组细胞葡萄糖调节蛋白 78(GRP78)、1 型内质网转膜蛋白激酶(IRE1)、活化转录因子 6(ATF6)的蛋白及mRNA表达.结果 液质联用分析得到滋阴明目方含药血清中包含熊果苷、水杨酸、木犀草素、丹酚酸A、刺桐碱、牛磺酸、檞皮素、麦芽酚、黄芩苷、丹参素等主要化学成分.与模型组比较,滋阴明目方含药血清组细胞数量增多,生长较均匀,漂浮的死亡ARPE-19 细胞及碎片减少;滋阴明目方含药血清组和牛磺熊去氧胆酸组的细胞存活率均升高,细胞凋亡率均下降(均P<0.05);滋阴明目方含药血清组GRP78、IRE1、ATF6 蛋白表达降低,牛磺熊去氧胆酸组IRE1、ATF6蛋白表达降低(均 P<0.05);滋阴明目方含药血清组和牛磺熊去氧胆酸组 GRP78、IRE1、ATF6 mRNA表达降低(均P<0.05).结论 滋阴明目方可以减少ARPE-19 细胞内质网应激损伤模型的细胞凋亡,其分子机制可能与下调GRP78、IRE1、ATF6 的表达,抑制细胞内质网应激反应有关.
AbstractList R285.5; 目的 探讨滋阴明目方改善视网膜色素变性的作用机制.方法 将 20 只SD大鼠按随机数字表法分为空白血清组和滋阴明目方含药血清组,每组10 只.滋阴明目方含药血清组大鼠灌胃滋阴明目方(46.875 g/kg),空白血清组大鼠灌胃蒸馏水.制备滋阴明目方含药血清及空白血清,采用液质联用技术分析滋阴明目方含药血清的化学成分.采用衣霉素干预人视网膜色素上皮(ARPE-19)细胞构建内质网应激损伤模型.CCK-8 法筛选滋阴明目方含药血清最优体积分数.将ARPE-19 细胞分为空白组、模型组、空白血清组、滋阴明目方含药血清组、牛磺熊去氧胆酸组,分别进行干预.干预24 h后,采用多时间动态细胞功能分析系统对细胞进行形态观察,CCK-8 法检测各组细胞存活率,Annexin V-FITC/PI法检测各组细胞凋亡率,蛋白质印迹法和微滴式数字PCR法检测各组细胞葡萄糖调节蛋白 78(GRP78)、1 型内质网转膜蛋白激酶(IRE1)、活化转录因子 6(ATF6)的蛋白及mRNA表达.结果 液质联用分析得到滋阴明目方含药血清中包含熊果苷、水杨酸、木犀草素、丹酚酸A、刺桐碱、牛磺酸、檞皮素、麦芽酚、黄芩苷、丹参素等主要化学成分.与模型组比较,滋阴明目方含药血清组细胞数量增多,生长较均匀,漂浮的死亡ARPE-19 细胞及碎片减少;滋阴明目方含药血清组和牛磺熊去氧胆酸组的细胞存活率均升高,细胞凋亡率均下降(均P<0.05);滋阴明目方含药血清组GRP78、IRE1、ATF6 蛋白表达降低,牛磺熊去氧胆酸组IRE1、ATF6蛋白表达降低(均 P<0.05);滋阴明目方含药血清组和牛磺熊去氧胆酸组 GRP78、IRE1、ATF6 mRNA表达降低(均P<0.05).结论 滋阴明目方可以减少ARPE-19 细胞内质网应激损伤模型的细胞凋亡,其分子机制可能与下调GRP78、IRE1、ATF6 的表达,抑制细胞内质网应激反应有关.
Abstract_FL Objective We aimed to explore the mechanism of Ziyin Mingmu Formula in improving retinitis pigmentosa.Methods Twenty SD rats were randomly divided into the blank serum group and the Ziyin Mingmu Formula containing serum group using a random number table method,with 10 rats in each group.The rats in the Ziyin Mingmu Formula containing serum group were given Ziyin Mingmu Formula(46.875 g/kg),while the rats in the blank serum group were given distilled water.The Ziyin Mingmu Formula containing serum and blank serum were prepared.Analysis of chemical components in Ziyin Mingmu Formula containing serum using liquid chromatography-mass spectrometry technology.Adult retinal pigment epithelial cell line-19(ARPE-19)cells were treated with tunicamycin to induce endoplasmic reticulum stress injury model.The optimal volume fraction of Ziyin Mingmu Formula containing serum was screened by CCK-8.ARPE-19 cells were divided into the blank group,the model group,the blank serum group,the Ziyin Mingmu Formula containing serum group and the tauroursodeoxycholic acid group,each group is intervened separately.After 24 hours of intervention,the morphological observation of cells was performed using a multi-time dynamic cell function analysis system,cell survival rate was detected by CCK-8,cell apoptosis rate was detected by Annexin V-FITC/PI,and protein and mRNA expressions of 78 kDa glucose regulated protein(GRP78),inositol-requiring enzyme 1(IRE1)and activating transcription factor 6(ATF6)were detected by Western blotting and ddPCR.Results The main chemical components in Ziyin Mingmu Formula containing serum were obtained by liquid chromatography-mass spectrometry analysis,such as arbutin,salicylic acid,luteolin,Salvianolic acid A,erysovine,taurine,quercetin,maltol,baicalin,and danshensu.Compared with the model group,the number of cells in Ziyin Mingmu Formula containing serum group increased,the growth was more uniform,and the floating dead ARPE-19 cells and fragments decreased.The cell survival rate of Ziyin Mingmu Formula containing serum group and taursodeoxycholic acid group increased,and the cell apoptosis rate decreased(P<0.05).The protein expressions of GRP78,IRE1,and ATF6 in Ziyin Mingmu Formula containing serum group were decreased,and IRE1 and ATF6 in taursodeoxycholic acid group were decreased(P<0.05).The mRNA expressions of GRP78,IRE1,and ATF6 in Ziyin Mingmu Formula containing serum group and tauroursodeoxycholic acid group were decreased(P<0.05).Conclusion Ziyin Mingmu Formula can reduce the cell apoptosis of ARPE-19 cells induced by endoplasmic reticulum stress,and its molecular mechanism is related to down-regulating the expression of GRP78,IRE1,ATF6 and inhibiting the endoplasmic reticulum stress response.
Author 曾梅艳
谢薇
欧晨
彭清华
彭俊
宋厚盼
AuthorAffiliation 湖南中医药大学第一附属医院 长沙 410007;湖南中医药大学%湖南中医药大学
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Author_FL OU Chen
XIE Wei
ZENG Meiyan
PENG Qinghua
SONG Houpan
PENG Jun
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DocumentTitle_FL Ziyin Mingmu Formula improve retinitis pigmentosa through the GRP78/IRE1/ATF6 pathway in vitro study
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Keywords Ziyin Mingmu Formula
adult retinal pigment epithelial cell line-19
葡萄糖调节蛋白78/1型内质网转膜蛋白激酶/活化转录因子6通路
apoptosis
滋阴明目方
人视网膜色素上皮细胞系-19
内质网应激
凋亡
78 kDa glucose regulated protein/inositol-requiring enzyme 1/activating transcription factor 6 pathway
endoplasmic reticulum stress
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PublicationTitle 北京中医药大学学报
PublicationTitle_FL Journal of Beijing University of Traditional Chinese Medicine
PublicationYear 2024
Publisher 湖南中医药大学%湖南中医药大学
湖南中医药大学第一附属医院 长沙 410007
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Snippet R285.5; 目的 探讨滋阴明目方改善视网膜色素变性的作用机制.方法 将 20 只SD大鼠按随机数字表法分为空白血清组和滋阴明目方含药血清组,每组10 只.滋阴明目方含药血清组大...
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Title 滋阴明目方调控GRP78/IRE1/ATF6通路改善视网膜色素变性的体外研究
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