Article(id=1218263332721705296, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1218263316816905068, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2016-1098, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1479052800000, receivedDateStr=2016-11-14, revisedDate=1481731200000, revisedDateStr=2016-12-15, acceptedDate=null, acceptedDateStr=null, onlineDate=1768386212759, onlineDateStr=2026-01-14, pubDate=1489248000000, pubDateStr=2017-03-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1768386212759, onlineIssueDateStr=2026-01-14, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1768386212759, creator=13701087609, updateTime=1768386212759, updator=13701087609, issue=Issue{id=1218263316816905068, tenantId=1146029695717560320, journalId=1189982191388893191, year='2017', volume='52', issue='3', pageStart='339', pageEnd='504', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1768386208967, creator=13701087609, updateTime=1768386500746, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1218264540681261791, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1218263316816905068, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1218264540685456096, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1218263316816905068, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=474, endPage=480, ext={EN=ArticleExt(id=1218263333208244617, articleId=1218263332721705296, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=Endocytosis pathway and intracellular distribution of heparosan, columnId=null, journalTitle=Acta Pharmaceutica Sinica, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In this study, the endocytosis pathway of heparosan and its intracellular distribution were investigated in MCF-7 tumor cells and COS7 normal cells. The endocytosis inhibition and cellular probe location experiments showed that MCF-7 tumor cells took heparosan more efficiently and selectively than COS7 cells. The cellular uptake of heparosan was energy-dependent in both MCF-7 tumor cells and COS7 normal cells. Moreover, the major endocytosis pathway of heparosan into MCF-7 tumor cells was caveolin-mediated endocytosis and macropinocytosis. The internalized heparosan was mainly located in lysosomes of the cells.
, correspAuthors=Jing-hua CHEN, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2017 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=Huan-huan PENG, Ying LI, Jia-yi YUAN, Jing-xiao CHEN, Jing-hua CHEN), CN=ArticleExt(id=1218263335355728477, articleId=1218263332721705296, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=Heparosan细胞入胞途径及其胞内分布, columnId=1190335348896011050, journalTitle=药学学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=
本文对肝素前体(heparosan)的细胞摄取途径及其进入细胞后的分布情况进行了研究。通过胞吞途径抑制及细胞探针定位实验发现,MCF-7肿瘤细胞较COS7正常细胞对heparosan的摄取效率更高,具有选择性。Heparosan在MCF-7肿瘤细胞和COS7正常细胞中的内吞过程均为能量依赖。Heparosan主要通过小窝蛋白和巨胞饮介导的内吞进入MCF-7肿瘤细胞,并且主要分布于溶酶体中。
, correspAuthors=陈敬华, authorNote=null, correspAuthorsNote=
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Investigating the molecular basis for the virulence of Escherichia coli K5 by nuclear magnetic resonance analysis of the capsule polysaccharide[J]. J Mol Microbiol Biotechnol, 2009, 17:71-82., articleTitle=null, refAbstract=null), Reference(id=1218968432926708186, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218263332721705296, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[11], rfOrder=10, authorNames=null, journalName=null, refType=null, unstructuredReference=Wang Z, Zhang Z, Mccallum SA, et al. Nuclear magnetic resonance quantification for monitoring heparosan K5 capsular polysaccharide production[J]. 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Synthetic routes of heporasan-RhB (HB) (a) and dextran-RhB (DB) (b). DCC: Dicyclohexylcarbodiimide; DMAP: 4-Dimethylaminopyridine
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Fluorescent intensity of HB and DB incubated with COS7 and MCF-7 cells with different concentrations (a) and various periods (b) (n=3) at 37 ℃. *P < 0.05, **P < 0.01 vs COS7 HB or MCF-7 HB
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Confocal laser scanning microscopy (CLSM) images of HB and DB incubated with COS7 cells (a) and MCF-7 cells (b) for different periods at 37 ℃. Scale bar: 25 μm
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CLSM images of COS7 (a) and MCF-7 (b) cells incubated with HB and DB at 37 ℃ and 4 ℃. Scale bar: 25 μm
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Effect of various endocytosis inhibitor treatments on the uptake of HB and DB by COS7 (a) and MCF-7 (b) cells (n=3). Control: HB or DB without endocytosis inhibitor; CPM: Chlorpromazine, clathrin-mediated endocytosis inhibitor; FP: Filipin, caveolin-mediated endocytosis inhibitor; WTM: Wortamannin, micropinocytosis inhibitor; 4 ℃, energy-dependent. *P < 0.05, **P < 0.01 vs control
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CLSM images of endocytosis pathway labeled COS7 (a), MCF-7 (b) co-incubated with HB and DB at 37 ℃, scale bar: 25 μm. Alexa 488-Transfeerin: Clathrin-mediated endocytosis probe; Alexa 488-Cholera toxin: Caveolin-mediated endocytosis probe; FITC-DEX: Micropinocytosis probe
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CLSM images of HB and DB in COS7 (A) and MCF-7 (B) cells incubated with HB and DB at 37 ℃. A and B: HB; A1 and B1: DB. Scale bar: 25 μm
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