Article(id=1222466553581392896, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1222466550314030044, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2018-0891, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1538236800000, receivedDateStr=2018-09-30, revisedDate=1542816000000, revisedDateStr=2018-11-22, acceptedDate=null, acceptedDateStr=null, onlineDate=1769388338704, onlineDateStr=2026-01-26, pubDate=1552320000000, pubDateStr=2019-03-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769388338704, onlineIssueDateStr=2026-01-26, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769388338704, creator=13701087609, updateTime=1769388338704, updator=13701087609, issue=Issue{id=1222466550314030044, tenantId=1146029695717560320, journalId=1189982191388893191, year='2019', volume='54', issue='3', pageStart='393', pageEnd='586', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769388337923, creator=13701087609, updateTime=1769389281170, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1222470506633224654, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1222466550314030044, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1222470506633224655, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1222466550314030044, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=475, endPage=481, ext={EN=ArticleExt(id=1222466554231509014, articleId=1222466553581392896, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=The "target + activity" method for rapid discovery of active compounds targeting Hsp90 in pancreatic cancer cells from
Physalis angulata L., columnId=1190335348761793317, journalTitle=Acta Pharmaceutica Sinica, columnName=Original Articles, runingTitle=null, highlight=null, articleAbstract=
The purpose of this study was to select the active compounds targeting Hsp90 protein in pancreatic cancer cells through a new dual "target + activity" rapid discovery technique. We combined an in vitro anti-cancer activity screening method with a dual-luciferase reporter gene and multi-chromatography separation technology, for rapid discovery of potential Hsp90 inhibitors from the Chinese herbal medicine Physalis angulata L. The anti-proliferation activity of those compounds was assessed in pancreatic cancer cell line BxPC-3 by MTT assays. The molecular mechanisms of Hsp90 inhibition were explored by Western blot and shRNA knockdown assays. As a result, two withanolides, withanolide E (WE) and 4β-hydroxywithanolide E (HWE), were identified from Physalis angulata L. The half maximal inhibitory concentration (IC50) of WE and HWE were 0.71±0.03 and 1.23±0.10 μmol·L-1 for the growth of BxPC-3 cells in 48 h. Luciferase reporter assay demonstrated that WE and HWE significantly induced heat shock element (HSE) activity in a dose-and time-dependent manner. The molecular mechanism study showed that after exposing to 5 μmol·L-1 WE or HWE for 48 h, the aggregation of Hsp90 dimer was upregulated to 6.5±1.3 and 11.8±2.0 fold, while the expression of Hsp90 client protein Akt was downregulated to 21.7%±2.8% and 9.8%±1.4% of the control group. Moreover, the Hsp90 inhibitory activity of WE or HWE was canceled by shRNA mediated Hsp90 knockdown. Overall, based on the dual "target + active" rapid discovery technique, two new Hsp90 inhibitors WE and HWE were found from Physalis angulata L. The Hsp90 inhibitory mechanism of WE and HWE may be mediated by induction of Hsp90 aggregate dimer and inhibition of Hsp90 client protein Akt expression.
, correspAuthors=Man-cang GU, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2019 Acta Pharmaceutica Sinica. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Ya-fang QIAN, Bo YANG, Di FENG, Yi-fan QIAN, Ya-li WU, Xu ZHANG, Man-cang GU), CN=ArticleExt(id=1222466555745652843, articleId=1222466553581392896, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=“靶点+活性”快速发现苦蘵中靶向Hsp90抗胰腺癌有效成分的研究, columnId=1190335348896011050, journalTitle=药学学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=
本研究基于"靶点+活性"双重导向快速发现技术筛选苦蘵中靶向Hsp90蛋白杀伤胰腺癌细胞的活性单体。通过将体外抗肿瘤活性筛选技术、双萤光素酶报告基因技术与多元色谱分离技术相耦合,从中药苦蘵中筛选靶向Hsp90的活性单体。研究化合物抗胰腺癌细胞BXPC-3生长活性,初步探讨化合物抑制Hsp90分子机制。结果显示从苦蘵中分离得到醉茄内酯类化合物withanolide E(WE)与4β-hydroxywithanolide E(HWE)。MTT结果显示,WE与HWE处理BXPC-3细胞48 h的半数抑制率(IC50)分别为0.71±0.03和1.23±0.10 μmol·L-1;萤光素酶报告基因实验结果显示,WE与HWE可使细胞热休克元件活性增强12.5±3.4倍与28.1±3.4倍;两者均呈现量效与时效关系。分子机制研究提示,与DMSO组相比5 μmol·L-1 WE和HWE分别处理BXPC-3细胞48 h可诱导Hsp90二聚体蛋白表达上调6.5±1.3和11.8±2.0倍,Hsp90客户蛋白Akt表达下调至DMSO组的21.7%±2.8%和9.8%±1.4%;shRNA干扰Hsp90基因表达可阻断其抑制Akt表达与杀伤肿瘤细胞的作用。采用"靶点+活性"双重导向快速发现技术可从苦蘵中筛选得到靶向Hsp90蛋白杀伤胰腺癌细胞的活性单体WE与HWE;其分子机制可能与诱导胰腺癌细胞形成无活性Hsp90二聚体,进而抑制Hsp90客户蛋白Akt表达有关。
, correspAuthors=谷满仓, authorNote=null, correspAuthorsNote=
, copyrightStatement=版权所有©《药学学报》编辑部2019, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=NRy16ZgabpAwlye8UUMtRw==, magXml=Rio29depM/HYKcfCMXpvrg==, pdfUrl=null, pdf=0DNGY6AFa69Byz305h+96Q==, pdfFileSize=504882, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=YoI2JStQB/pBftkLVrMotQ==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=4Ly75BvRvZddqzCkWn2BdQ==, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=钱亚芳, 杨波, 冯迪, 钱亿帆, 吴亚莉, 张姁, 谷满仓)}, authors=[Author(id=1222466556290912399, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1222466556416741528, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, authorId=1222466556290912399, language=EN, stringName=Ya-fang QIAN, firstName=Ya-fang, middleName=null, lastName=QIAN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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177: 456-469., articleTitle=Inhibition of heat shock protein 90 exerts an antitumour effect in angiosarcoma:involvement of the vascular endothelial growth factor signalling pathway, refAbstract=null)], funds=[Fund(id=1222466561902891573, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, awardId=81673607, language=CN, fundingSource=国家自然科学基金资助项目(81673607), fundOrder=null, country=null), Fund(id=1222466562032915006, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, awardId=81303235, language=CN, fundingSource=国家自然科学基金资助项目(81303235), fundOrder=null, country=null), Fund(id=1222466562154549827, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, awardId=81774011, language=CN, fundingSource=国家自然科学基金资助项目(81774011), fundOrder=null, country=null), Fund(id=1222466562288767558, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, awardId=Y19H280009, language=CN, fundingSource=浙江省自然科学基金资助项目(Y19H280009), fundOrder=null, country=null), Fund(id=1222466562410402381, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, awardId=Y17H280023, language=CN, fundingSource=浙江省自然科学基金资助项目(Y17H280023), fundOrder=null, country=null), Fund(id=1222466562544620117, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, awardId=2018GZ24, language=CN, fundingSource=湖州市科技计划公益类研究(2018GZ24), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1222466555959562360, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, xref=null, ext=[AuthorCompanyExt(id=1222466555984728186, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, companyId=1222466555959562360, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. The First Affiliated Hospital of Zhejiang Chinese Medical University(Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou 310006, China), AuthorCompanyExt(id=1222466556018282622, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, companyId=1222466555959562360, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.浙江中医药大学附属第一医院 (浙江省中医院), 浙江 杭州 310006)]), AuthorCompany(id=1222466556144111752, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, xref=null, ext=[AuthorCompanyExt(id=1222466556156694666, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, companyId=1222466556144111752, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2. School of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310053, China), AuthorCompanyExt(id=1222466556160888970, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, companyId=1222466556144111752, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.浙江中医药大学药学院, 浙江 杭州 310053)])], figs=[ArticleFig(id=1222466560380359107, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, language=EN, label=null, caption=null, figureFileSmall=UbKiNMQsQ7rgGSi76T4IXQ==, figureFileBig=YoI2JStQB/pBftkLVrMotQ==, tableContent=null), ArticleFig(id=1222466560468439499, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, language=CN, label=Figure 1, caption=
The chemical structures of withanolide E (WE, A) and 4β-hydroxywithanolide E (HWE, B) , figureFileSmall=UbKiNMQsQ7rgGSi76T4IXQ==, figureFileBig=YoI2JStQB/pBftkLVrMotQ==, tableContent=null), ArticleFig(id=1222466560715903452, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, language=EN, label=null, caption=null, figureFileSmall=F3/xahbecePdievgM2Wp1w==, figureFileBig=jFtUQoW2TXaI25IheGJnKQ==, tableContent=null), ArticleFig(id=1222466560795595236, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, language=CN, label=Figure 2, caption=
The anti-proliferation and heat shock induction activity of compounds from Physalis angulata L. A: The percentage of cell proliferation of BXPC-3 cells after exposing to different concentrations of WE and HWE for 48 h; B: The percentage of cell proliferation of BXPC-3 cells after exposing to 1.25 μmol·L-1 WE and HWE for 12, 24 and 48 h; C: The fold changes of heat shock element (HSE) reporter activity in HEK293T cells for the treatment of WE and HWE (0.062 5, 0.125, 0.25, 0.5 μmol·L-1) for 24 h; D: The fold changes of HSE reporter activity in HEK293T cells for the treatment of 0.125 μmol·L-1 WE and HWE for 6, 12 and 24 h. n = 3, $\bar{x}\pm s$. #P < 0.05, ##P < 0.01 vs DMSO group , figureFileSmall=F3/xahbecePdievgM2Wp1w==, figureFileBig=jFtUQoW2TXaI25IheGJnKQ==, tableContent=null), ArticleFig(id=1222466560913035758, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, language=EN, label=null, caption=null, figureFileSmall=DpLoaqB7/i0eoA3RDxxX+A==, figureFileBig=nSC862e7y34Py062shXaCw==, tableContent=null), ArticleFig(id=1222466561005310453, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, language=CN, label=Figure 3, caption=
The inhibitory effect of WE and HWE on Hsp90 client protein Akt expression. A: The Akt protein expression in BXPC-3 cells after exposure to WE and HWE for 48 h; B: Quantitative analysis of Akt expression. n = 3, $\bar{x}\pm s$. #P < 0.05, ##P < 0.01 vs DMSO group , figureFileSmall=DpLoaqB7/i0eoA3RDxxX+A==, figureFileBig=nSC862e7y34Py062shXaCw==, tableContent=null), ArticleFig(id=1222466561122750976, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, language=EN, label=null, caption=null, figureFileSmall=VPxRe/TtLQOUCWOIesPPDg==, figureFileBig=cyORHPUIh4mh9Hx0SZqYGg==, tableContent=null), ArticleFig(id=1222466561240191496, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, language=CN, label=Figure 4, caption=
WE and HWE induced Hsp90 to aggregate dimer formation. A: The dimer, monomer and total expression of Hsp90 after exposure to 5 μmol·L-1 WE and HWE for 48 h; B: Quantitative analysis of Hsp90 dimer and total protein expression. n = 3, $\bar{x}\pm s$. ##P < 0.01 vs DMSO group , figureFileSmall=VPxRe/TtLQOUCWOIesPPDg==, figureFileBig=cyORHPUIh4mh9Hx0SZqYGg==, tableContent=null), ArticleFig(id=1222466561349243404, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, language=EN, label=null, caption=null, figureFileSmall=IZPZoV+9a2/EiywRA8RphQ==, figureFileBig=pn98ZEosbaNfIHQAii4n1w==, tableContent=null), ArticleFig(id=1222466561475072533, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, language=CN, label=Figure 5, caption=
shRNA knockdown Hsp90 blocked the anti-proliferation activity of WE and HWE. BXPC-3 cells were pre-treated with scramble shRNA or Hsp90α/β shRNA. Then the Hsp90 knockdown clones were exposed to 5 μmol·L-1 WE and HWE or DMSO for 48 h, respectively. The clones expressed scramble shRNA were serviced as control. A: The clone formation of each group was assessed by crystal violent staining assay; B: The Hsp90 and Akt protein levels. β-Actin was loading control for Western blot assay. C: The percentage of cell proliferation. n = 3, $\bar{x}\pm s$. ##P < 0.01 vs DMSO group , figureFileSmall=IZPZoV+9a2/EiywRA8RphQ==, figureFileBig=pn98ZEosbaNfIHQAii4n1w==, tableContent=null), ArticleFig(id=1222466561600901663, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| Fraction | 24 h IC50/μg·mL-1 | HSE induction activity (Fluc/Rluc/%) |
| DMSO | Treatment |
| 1 | > 100 | | 144.1 ± 18.3 |
| 2 | > 100 | | 138.3 ± 22.9 |
| 3 | 31.7 ± 0.7 | | 477.2 ± 95.3# |
| 4 | 4.35 ± 0.3 | | 2274.3 ± 472.4## |
| 5 | 11.6 ± 0.3 | 143.3 ± 24.4 | 1410.7 ± 220.7## |
| 6 | 56.2 ± 1.3 | | 389.7 ± 88.5# |
| 7 | > 100 | | 149.5 ± 24.9 |
| 8 | > 100 | | 121.9 ± 20.9 |
| 9 | > 100 | | 140.0 ± 23.7 |
), ArticleFig(id=1222466561709953578, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466553581392896, language=CN, label=Table 1, caption=
The activity screening results of dichloromethane fractions from Physalis angulata L.in BXPC-3 cells. n=3, $\bar{x}\pm s$. #P < 0.05, ##P < 0.01 vs DMSO group. IC50: Half maximal inhibitory concentration
, figureFileSmall=null, figureFileBig=null, tableContent=
| Fraction | 24 h IC50/μg·mL-1 | HSE induction activity (Fluc/Rluc/%) |
| DMSO | Treatment |
| 1 | > 100 | | 144.1 ± 18.3 |
| 2 | > 100 | | 138.3 ± 22.9 |
| 3 | 31.7 ± 0.7 | | 477.2 ± 95.3# |
| 4 | 4.35 ± 0.3 | | 2274.3 ± 472.4## |
| 5 | 11.6 ± 0.3 | 143.3 ± 24.4 | 1410.7 ± 220.7## |
| 6 | 56.2 ± 1.3 | | 389.7 ± 88.5# |
| 7 | > 100 | | 149.5 ± 24.9 |
| 8 | > 100 | | 121.9 ± 20.9 |
| 9 | > 100 | | 140.0 ± 23.7 |
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