Article(id=1222466821098300163, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1222466818573324401, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2019-0074, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1548172800000, receivedDateStr=2019-01-23, revisedDate=1553788800000, revisedDateStr=2019-03-29, acceptedDate=null, acceptedDateStr=null, onlineDate=1769388402485, onlineDateStr=2026-01-26, pubDate=1560268800000, pubDateStr=2019-06-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769388402485, onlineIssueDateStr=2026-01-26, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769388402485, creator=13701087609, updateTime=1769388402485, updator=13701087609, issue=Issue{id=1222466818573324401, tenantId=1146029695717560320, journalId=1189982191388893191, year='2019', volume='54', issue='6', pageStart='963', pageEnd='1144', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769388401883, creator=13701087609, updateTime=1769389420159, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1222471089591149021, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1222466818573324401, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1222471089591149022, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1222466818573324401, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1123, endPage=1131, ext={EN=ArticleExt(id=1222466822008464133, articleId=1222466821098300163, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=Smart fluorescent nano-delivery system for breast cancer cell tracing and growth inhibition, columnId=1190335348761793317, journalTitle=Acta Pharmaceutica Sinica, columnName=Original Articles, runingTitle=null, highlight=null, articleAbstract=
This study aimed to construct an intelligent fluorescent nanocarrier for tumor cell tracing. Doxorubicin (DOX) was used as a model drug, and the gene targeting siBcl-2 was loaded to achieve synergistic inhibition of tumor cells. Mesoporous silicon nanoparticles (MSN) were prepared by a sol-gel method, and acetaldehyde cystine (AC) and polyethyleneimine (PEI) were covalently modified. The prepared nanocarrier MSN-AC-PEI was uniformly dispersed, with a particle size of 235.53 nm and a potential of 14.63 mV. The carrier material MSN-AC-PEI could load siRNA with the mass ratio of 60:1 (Wvectors:WsiRNA) and protect siRNA from RNase I degradation. To simulate the microenvironment of tumor, DOX release in phosphate buffer (pH 5) including 10 mmol·L-1 glutathione (GSH) was investigated. The cumulative release rate of DOX at 120 h is 35 times that of the normal physiological environment, which lays the foundation for the intelligent release of DOX in tumor cells. The results of cell experiments showed that the carrier material MSN-AC-PEI had significant green fluorescence, and the traceability can be maintained for 24 h after taken up by MCF-7 cells. After 24 hours of administration of the nano drug delivery system MSN-AC-PEI@DOX/siBcl-2, the inhibition rate of tumor cell proliferation reached 40.91%, and the late apoptosis rate was 60.84%. The Western blot results showed that compared with free DOX and siBcl-2, the nano-delivery system MSN-AC-PEI@DOX/siBcl-2 can significantly reduce the expression of anti-apoptotic protein Bcl-2, thereby enhancing its anti-tumor ability.
, correspAuthors=Bei-bei ZHANG, Rui-fang LI, 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=Bei-bei ZHANG, Wei-lan HUANG, Yu-ying MEI, Yue-xin SHAO, Lu ZHANG, Rui-fang LI), CN=ArticleExt(id=1222466825636537165, articleId=1222466821098300163, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=智能型荧光纳米递送系统用于乳腺癌细胞的示踪和增殖抑制研究, columnId=1190335348896011050, journalTitle=药学学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=
本研究旨在构建一种智能型荧光纳米载体用于肿瘤细胞的示踪,同时通过物理吸附和静电吸附作用,完成模型药物多柔比星(DOX)和小分子干扰RNA(siBcl-2)的负载,实现对肿瘤细胞的协同抑制。本文采用溶胶凝胶法制备介孔硅纳米粒(MSN),共价修饰乙醛化胱氨酸(AC)及聚乙烯亚胺(PEI),所制备的纳米载体MSN-AC-PEI分散均匀,粒径为235.53 nm,电位为14.63 mV;载体材料对siRNA负载比例可达到60:1(质量比),且载体材料可保护siRNA不受RNA酶降解;为模拟肿瘤微环境,DOX在pH 5、10 mmol·L-1谷胱甘肽(GSH)中的释放行为被研究,结果证明,DOX在120 h的累积释放率为正常生理环境的35倍,为其在肿瘤细胞内的智能释放奠定了基础。细胞实验结果表明:MSN-AC-PEI载体材料具有显著的绿色荧光,被肿瘤细胞(MCF-7)摄取后,24 h仍具有示踪能力。纳米递药系统MSN-AC-PEI@DOX/siBcl-2给药24 h后,对肿瘤细胞增殖抑制率可达到40.91%,晚期凋亡率为60.84%。Western blot实验结果表明:与单独DOX及siBcl-2相比,纳米递药系统能显著降低抗凋亡蛋白Bcl-2的表达,从而提升其抗肿瘤能力。
, correspAuthors=张贝贝, 李瑞芳, authorNote=null, correspAuthorsNote=
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The representation of the formation of mesoporous silica-acetaldehyde modified cystine-polyethyleneimine (MSN-AC-PEI) nanocarriers for the co-delivery of small interfering RNA (siBcl-2) and doxorubicin (DOX) , figureFileSmall=k9Jj6DvTpJTkxkYOU1o2Vg==, figureFileBig=GDiL57rEaRTlh3aA6haRxQ==, tableContent=null), ArticleFig(id=1222466945757205238, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466821098300163, language=EN, label=null, caption=null, figureFileSmall=SobNI9/COpb1CpkOsNyDjQ==, figureFileBig=FQ3pkUZhIO5POYNUHGozJg==, tableContent=null), ArticleFig(id=1222466945849479930, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466821098300163, language=CN, label=Figure 2, caption=
TEM characterization of mesoporous silicon nanoparticles (MSN) (A) and MSN-AC-PEI nano-carriers (B) , figureFileSmall=SobNI9/COpb1CpkOsNyDjQ==, figureFileBig=FQ3pkUZhIO5POYNUHGozJg==, tableContent=null), ArticleFig(id=1222466945941754623, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466821098300163, language=EN, label=null, caption=null, figureFileSmall=ra0DaDCMZv8CDz9s2Ja7xg==, figureFileBig=qmQ7kJETalmEG4lezlIpnA==, tableContent=null), ArticleFig(id=1222466946055000839, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466821098300163, language=CN, label=Figure 3, caption=
The fluorescence spectra of acetaldehyde cystine (AC) in aqueous suspension (A). The representative zeta potential (B), hydrodynamic diameters (C) and thermogravimetric analysis-differential thermal analysis (TG-DTA) of MSN, NH2-MSN, NH2-HMSN-AC and MSN-AC-PEI (D). n = 3, $\bar{x}\pm s$ , figureFileSmall=ra0DaDCMZv8CDz9s2Ja7xg==, figureFileBig=qmQ7kJETalmEG4lezlIpnA==, tableContent=null), ArticleFig(id=1222466946164052745, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466821098300163, language=EN, label=null, caption=null, figureFileSmall=6dXI7eaTLwO7OlWBblJneA==, figureFileBig=YOdlGyvI59BLXAQLbbOfSg==, tableContent=null), ArticleFig(id=1222466946268910347, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466821098300163, language=CN, label=Figure 4, caption=
Agarose gel electrophoresis retardation assay of MSN-AC-PEI@siRNA complexes under various vector/siRNA mass ratios (0:1, 10:1, 20:1, 40:1, 60:1 and 80:1 from left to right). PEI1.8 was used for lane 1-6, and PEI25 was used for lane 7-12 (A). RNase protection assay of nanocomplexes (B). a: The MSN-AC-PEI@siRNA complexes with various vector/siRNA mass ratios (0:1, 60:1, 70:1, 80:1 from left to right); b: 5 ng·μL-1 RNase was added; c: 2 Heparin sodium (2 mg·mL-1) was added; d: 5 ng·μL-1 RNase and 2 mg·mL-1 heparin sodium were added , figureFileSmall=6dXI7eaTLwO7OlWBblJneA==, figureFileBig=YOdlGyvI59BLXAQLbbOfSg==, tableContent=null), ArticleFig(id=1222466946323436303, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466821098300163, language=EN, label=null, caption=null, figureFileSmall=7nX0jWrQd7d1crudOvYRnQ==, figureFileBig=7M/nPLnA6Q5i7gZyCvGDIA==, tableContent=null), ArticleFig(id=1222466946436682517, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466821098300163, language=CN, label=Figure 5, caption=
In vitro DOX release profiles of MSN-AC-PEI@DOX complexes in phosphate buffer saline (pH 5 or 7.4) with or without 10 mmol·L-1 glutathione (GSH) (A). GSH depletion by MSN-AC-PEI. The reduced GSH (150 μmol·L-1) was incubated with different concentrations of MSN-AC-PEI for 2 h and the free GSH was determined (B). n = 3, $\bar{x}\pm s$. *P < 0.05, **P < 0.01 vs control , figureFileSmall=7nX0jWrQd7d1crudOvYRnQ==, figureFileBig=7M/nPLnA6Q5i7gZyCvGDIA==, tableContent=null), ArticleFig(id=1222466946545734426, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466821098300163, language=EN, label=null, caption=null, figureFileSmall=tsz7HDxWa+v0Vm5pJIlwhA==, figureFileBig=dZXw6jTpfnRXAhMNUPuk1A==, tableContent=null), ArticleFig(id=1222466946612843294, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466821098300163, language=CN, label=Figure 6, caption=
CLSM images of MCF-7 cells after incubation with MSN-AC-PEI@DOX complexes for 6 h (A). Scale bar: 50 μm (upper), 15 μm (bottom). Cellular uptake of different nanoparticles in MCF-7 cells for 6 h was determined by flow cytometry (B) , figureFileSmall=tsz7HDxWa+v0Vm5pJIlwhA==, figureFileBig=dZXw6jTpfnRXAhMNUPuk1A==, tableContent=null), ArticleFig(id=1222466946692535072, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466821098300163, language=EN, label=null, caption=null, figureFileSmall=iAkwfukk6/plkgMCE9mhRw==, figureFileBig=iYXe1Q7EaAvp8xBdmB3lBQ==, tableContent=null), ArticleFig(id=1222466946809975589, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466821098300163, language=CN, label=Figure 7, caption=
CLSM images of MCF-7 cells after incubation with MSN-AC-PEI@DOX complexes for 2, 6 and 24 h , figureFileSmall=iAkwfukk6/plkgMCE9mhRw==, figureFileBig=iYXe1Q7EaAvp8xBdmB3lBQ==, tableContent=null), ArticleFig(id=1222466946893861671, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466821098300163, language=EN, label=null, caption=null, figureFileSmall=bgZ/PGfAncV/QM7rfLFU3Q==, figureFileBig=vgQkUwq5CVdn9CSGfzOj5g==, tableContent=null), ArticleFig(id=1222466947019690792, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466821098300163, language=CN, label=Figure 8, caption=
Cell viabilities of MCF-7 cells treated with different concentration of MSN-AC-PEI (A) and different formulations of DOX/ siBcl-2 for 24, 48 and 72 h (B). n = 4, $\bar{x}\pm s$. ***P < 0.001 vs MSN-AC-PEI+DOX group, ###P < 0.001 vs MSN-AC-PEI+siBcl-2 group , figureFileSmall=bgZ/PGfAncV/QM7rfLFU3Q==, figureFileBig=vgQkUwq5CVdn9CSGfzOj5g==, tableContent=null), ArticleFig(id=1222466947116159789, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466821098300163, language=EN, label=null, caption=null, figureFileSmall=X3SrTfw5AaGuXgYaaljNqg==, figureFileBig=ZgW5EtpnwJii8xHrgzdH5Q==, tableContent=null), ArticleFig(id=1222466947221017390, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466821098300163, language=CN, label=Figure 9, caption=
Annexin V-FITC apoptosis assay for the determination of apoptotic/necrotic cells in MCF-7 cells treated with different formulations for 48 h was detected by flow cytometry. Untreated cells were used as a control , figureFileSmall=X3SrTfw5AaGuXgYaaljNqg==, figureFileBig=ZgW5EtpnwJii8xHrgzdH5Q==, tableContent=null), ArticleFig(id=1222466947300709168, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466821098300163, language=EN, label=null, caption=null, figureFileSmall=Feq0//VHbJWY2IfE/YmHgA==, figureFileBig=LClgxxfdAKRoy5qnqN+wlA==, tableContent=null), ArticleFig(id=1222466947372012340, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1222466821098300163, language=CN, label=Figure 10, caption=
The expression level of Bcl-2 for control (1), naked carrier MSN-AC-PEI (2), MSN-AC-PEI@DOX nano system (3), MSN-AC-PEI@siBcl-2 nano system (4) and DOX/siBcl-2 co-delivery nano system (5) was evaluated by Western blot (A). Semi-quantitative analysis of immunoblotting assay (B). n = 3, $\bar{x}\pm s$. ***P < 0.001 vs control , figureFileSmall=Feq0//VHbJWY2IfE/YmHgA==, figureFileBig=LClgxxfdAKRoy5qnqN+wlA==, tableContent=null)], attaches=null, journal=Journal(id=1189982048455397383, delFlag=0, nameCn=药学学报, nameEn=Acta Pharmaceutica Sinica, nameHistory1=null, nameHistory2=null, issn=0513-4870, eissn=null, cn=11-2163/R, coden=null, periodic=0, language=CN, oaType=null, ccby=null, superviseOffice=null, ownerOffice=null, pubOffice=null, editorOffice=null, officeType=null, aims=null, clcCode=null, officeProv=null, officeCity=null, officeAddr=null, officeZip=null, officeEmail=null, officePhone=null, editDirector=null, officeDirector=null, officeDirectorPhone=null, officeStaffNum=null, officeEmpNum=null, coverPicUrl=BTxjudbJDVO4PqdBR6On6Q==, journalPrice=null, startedYear=null, abbrevIsoEn=null, journalRemark=null, publicationField=null, createdTime=1761643429151, updatedTime=1761735768113, createdBy=18614031015, 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