Article(id=1220655365977461006, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1220655362521351042, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2020-0842, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1590422400000, receivedDateStr=2020-05-26, revisedDate=1592236800000, revisedDateStr=2020-06-16, acceptedDate=null, acceptedDateStr=null, onlineDate=1768956517929, onlineDateStr=2026-01-21, pubDate=1594483200000, pubDateStr=2020-07-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1768956517929, onlineIssueDateStr=2026-01-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1768956517929, creator=13701087609, updateTime=1768956517929, updator=13701087609, issue=Issue{id=1220655362521351042, tenantId=1146029695717560320, journalId=1189982191388893191, year='2020', volume='55', issue='7', pageStart='1357', pageEnd='1706', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1768956517105, creator=13701087609, updateTime=1768957228011, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1220658344335950505, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1220655362521351042, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1220658344335950506, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1220655362521351042, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1614, endPage=1621, ext={EN=ArticleExt(id=1220655366644355381, articleId=1220655365977461006, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=Mechanisms of bupivacaine inhibition of glutamate-induced intracellular calcium elevation in primary cultured rat hippocampal astrocytes, columnId=1190335348761793317, journalTitle=Acta Pharmaceutica Sinica, columnName=Original Articles, runingTitle=null, highlight=null, articleAbstract=
This research investigated the mechanism by which bupivacaine inhibits glutamate-induced intracellular free Ca2+ increases in primary cultured hippocampal astrocytes. Immunofluorescence was used to demonstrate the expression of metabotropic glutamate receptor (mGluR5 receptor) on neurons and astrocytes. Calcium imaging was used to measure the alteration of intracellular free Ca2+ ([Ca2+]i) in primary cultured rat hippocampal neurons and astrocytes. The animal experiments were approved by the Animal Experiments Ethical Committee of Hebei Medical University. The results showed that mGluR5 receptor was abundantly expressed in the primary cultured rat neurons and astrocytes. Bupivacaine (300 μmol·L-1) significantly inhibited 1 mmol·L-1 glutamate-induced[Ca2+]i increase in astrocytes (P < 0.01). 2-Methyl-6-(2-phenylethynyl)-pyridine (MPEP) (10 μmol·L-1) completely abolished the increase of[Ca2+]i induced by 1 mmol·L-1 glutamate in the astrocytes (P < 0.01), while the inhibitory effect on neurons was only 10%-20%. Bupivacaine (300 μmol·L-1) completely inhibited the[Ca2+]i increase induced by mGluR5 receptor agonists (RS)-3, 5-dihydroxyphenylglycine (DHPG) (50 μmol·L-1) and (RS)-2-chloro-5-hydroxyphenylglycine sodium salt (CHPG) (1 mmol·L-1) in astrocytes (P < 0.01). In addition, bupivacaine inhibited the CHPG-induced[Ca2+]i increase in a dose-dependent manner in astrocytes with an IC50 of 100 μmol·L-1. The results from this study indicate that bupivacaine inhibits glutamate-induced[Ca2+]i elevation by acting on the mGluR5 receptor in primary cultured hippocampal astrocytes.
, correspAuthors=Wei ZHANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2020 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 MA, Xiao-que ZHU, Wen-yan GUO, Jie HAO, Bao-hua JIN, Wei ZHANG), CN=ArticleExt(id=1220655368175276447, articleId=1220655365977461006, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=布比卡因抑制谷氨酸诱导大鼠海马星形胶质细胞内钙升高的机制, columnId=1190335348896011050, journalTitle=药学学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=
本文以原代培养的大鼠海马星形胶质细胞为研究对象,探讨布比卡因(bupivacaine)抑制谷氨酸诱导的海马星形胶质细胞内钙升高的机制。运用免疫荧光技术确定代谢型谷氨酸受体(mGluR5受体)在神经元和星形胶质细胞上的表达情况;利用钙离子成像技术,观察布比卡因和mGluR5受体拮抗剂2-甲基-6-(苯乙炔)吡啶盐酸盐[2-methyl-6-(2-phenylethynyl)-pyridine,MPEP]对谷氨酸诱导的大鼠海马神经元和星形胶质细胞胞内游离钙(intracellular free Ca2+concentration,[Ca2+]i)变化的影响;观察布比卡因对mGluRs(mGluR1/5)受体激动剂(RS)-3,5-二羟基苯基甘氨酸[(RS)-3,5-dihydroxyphenylglycine,DHPG]及mGluR5受体特异性激动剂2-氯-5羟苯基甘氨酸钠盐[(RS)-2-chloro-5-hydroxyphenylglycine sodium salt,CHPG]诱导的大鼠海马神经元和星形胶质细胞[Ca2+]i变化的影响。动物实验已获得河北医科大学实验动物伦理委员会批准。结果显示,神经元和星形胶质细胞上mGluR5受体表达丰富;300 μmol·L-1布比卡因可抑制1 mmol·L-1谷氨酸诱导的星形胶质细胞[Ca2+]i的升高(P < 0.01);10 μmol·L-1 MPEP完全抑制了1 mmol·L-1谷氨酸诱导的星形胶质细胞[Ca2+]i的升高(P < 0.01),而对神经元[Ca2+]i升高反应的抑制率仅为10%~20%;300 μmol·L-1布比卡因可完全抑制50 μmol·L-1 DHPG介导的星形胶质细胞[Ca2+]i升高的反应(P < 0.01);布比卡因浓度依赖性地抑制CHPG诱导的星形胶质细胞[Ca2+]i的升高,IC50约为100 μmol·L-1。以上研究结果表明,布比卡因通过作用于星形胶质细胞上的mGluR5受体抑制谷氨酸介导的海马星形胶质细胞[Ca2+]i升高的反应。
, correspAuthors=张炜, authorNote=null, correspAuthorsNote=
, copyrightStatement=版权所有©《药学学报》编辑部2020, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=12p8LNFJb96OfxsK8eKS1Q==, magXml=7aR2ayt69abKMz+Tgr1yJA==, pdfUrl=null, pdf=+bLHaubRsBQkVNuBN7a8KA==, pdfFileSize=595589, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=diRPe5VeUb+y4jqWTlXYrQ==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=wBGHbuCPp38UCTiwTevyuw==, mapNumber=null, authorCompany=null, fund=null, authors=
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Effects of bupivacaine on the glutamate-induced [Ca2+]i elevation of astrocytes in the co-cultured system. A: 300 μmol·L-1 bupivacaine preincubation 5 min significantly inhibited glutamate-induced [Ca2+]i elevation in astrocytes representative trace; B: Percent changes in peak, area under the curve (AUC) and Tau value. Cells were exposed to 1 mmol·L-1 glutamate for 10 s. $ \bar x \pm s$, n= 10. **P < 0.01 vs glutamate group. [Ca2+]i: Intracellular free Ca2+ concentration , figureFileSmall=y3C1o8olxXMXF9w/Ml7SVQ==, figureFileBig=diRPe5VeUb+y4jqWTlXYrQ==, tableContent=null), ArticleFig(id=1220655371643966098, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1220655365977461006, language=EN, label=null, caption=null, figureFileSmall=fF78Hju1+bj/r1WguBW0xw==, figureFileBig=zTv9L7e+TXTFNenMZsVp9g==, tableContent=null), ArticleFig(id=1220655371732046490, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1220655365977461006, language=CN, label=Figure 2, caption=
Effects of MPEP on the glutamate-induced [Ca2+]i increase of neurons and astrocytes in the co-cultured system. 10 μmol·L-1 MPEP preincubation (5 min) suppressed the glutamate-induced [Ca2+]i elevation in neurons in co-cultured system (A: A representative trace; B: Percent changes in peak, AUC and Tau value, n = 35). The increase of [Ca2+]i induced by glutamate was completely abolished by MPEP in astrocytes (C: A representative trace; D: Percent changes in peak, AUC and Tau value, n = 22). Cells were exposed to 1 mmol·L-1 glutamate for 10 s. $ \bar x \pm s$. **P < 0.01 vs glutamate group. MPEP: 2-Methyl-6-(2-phenylethynyl)-pyridine , figureFileSmall=fF78Hju1+bj/r1WguBW0xw==, figureFileBig=zTv9L7e+TXTFNenMZsVp9g==, tableContent=null), ArticleFig(id=1220655371824321183, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1220655365977461006, language=EN, label=null, caption=null, figureFileSmall=BvFJtraHWRVjpm4pxmEHSg==, figureFileBig=maieSh1/Qool+rMCYWfYBg==, tableContent=null), ArticleFig(id=1220655371908207269, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1220655365977461006, language=CN, label=Figure 3, caption=
Neuron staining with metabotropic glutamate receptor 5 (mGluR5) in neuron. A-C: Representative images show the neuron immunostained with NeuN (red), mGluR5 (green), DAPI (blue). D was merged by the other three. Scale bar: 25 μm , figureFileSmall=BvFJtraHWRVjpm4pxmEHSg==, figureFileBig=maieSh1/Qool+rMCYWfYBg==, tableContent=null), ArticleFig(id=1220655371983704745, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1220655365977461006, language=EN, label=null, caption=null, figureFileSmall=tCOdM83TXg2rnbYAZr2LIw==, figureFileBig=oSFUjubT7EK8fPEsQ0aYEA==, tableContent=null), ArticleFig(id=1220655372084368047, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1220655365977461006, language=CN, label=Figure 4, caption=
Astrocytes staining with mGluR5 in pure-astrocytes system. A-C: Representative images show the astrocytes immunostained with GFAP (red), mGluR5 (green), DAPI (blue). D was merged by the other three. Scale bar: 25 μm , figureFileSmall=tCOdM83TXg2rnbYAZr2LIw==, figureFileBig=oSFUjubT7EK8fPEsQ0aYEA==, tableContent=null), ArticleFig(id=1220655372189225651, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1220655365977461006, language=EN, label=null, caption=null, figureFileSmall=+7NN6j/eo7stbZrX0L7jnQ==, figureFileBig=ieiDHd62BSYewiL3GKvBsA==, tableContent=null), ArticleFig(id=1220655372260528824, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1220655365977461006, language=CN, label=Figure 5, caption=
Effect of bupivacaine on the DHPG-induced [Ca2+]i changes of astrocytes in the co-cultured system. 50 μmol·L-1 DHPG (10 s) induced elevation of [Ca2+]i in astrocytes (A: A representative trace; B: Percent changes in peak, AUC and Tau value, n = 26) in primary cultured hippocampal astrocyte. $ \bar x \pm s$. 300 μmol·L-1 bupivacaine preincubation (5 min) significantly inhibited the DHPG-induced [Ca2+]i elevation in astrocytes (C: A representative trace; D: Percent changes in peak and AUC value, n = 40). $ \bar x \pm s$. **P < 0.01 vs DHPG group. DHPG: (RS)-3, 5-Dihydroxyphenylglycine , figureFileSmall=+7NN6j/eo7stbZrX0L7jnQ==, figureFileBig=ieiDHd62BSYewiL3GKvBsA==, tableContent=null), ArticleFig(id=1220655372352803518, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1220655365977461006, language=EN, label=null, caption=null, figureFileSmall=+iNqv6c2x6DwKgZQdXxtWg==, figureFileBig=V7Wg7JfTL36MeyapQ3juRg==, tableContent=null), ArticleFig(id=1220655372436689599, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1220655365977461006, language=CN, label=Figure 6, caption=
Effect of bupivacaine on the CHPG-induced [Ca2+]i changes of astrocyte in the co-cultured system. Stimulation with 1 mmol·L-1 CHPG for 20 s induced elevation of [Ca2+]i in astrocytes (A: A representative trace; B: Percent changes in peak, AUC and Tau value, n = 16) in co-cultured primary hippocampal neurons with astrocyte systems. $ \bar x \pm s$. Preincubation with 300 μmol·L-1 bupivacaine for 5 min inhibited CHPG-induced elevation in [Ca2+]i in astrocytes co-cultured with neurons (C: A representative trace; D: Percent changes in peak and AUC value, n = 12). $ \bar x \pm s$. **P < 0.01 vs CHPG group. CHPG: [(RS)-2-Chloro-5-hydroxyphenylglycine sodium salt , figureFileSmall=+iNqv6c2x6DwKgZQdXxtWg==, figureFileBig=V7Wg7JfTL36MeyapQ3juRg==, tableContent=null), ArticleFig(id=1220655372533158594, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1220655365977461006, language=EN, label=null, caption=null, figureFileSmall=ZqKF0boaYdLUCSffXzWCKg==, figureFileBig=6u6iu7XzoeqUTnoov9vj7w==, tableContent=null), ArticleFig(id=1220655372608656070, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1220655365977461006, language=CN, label=Figure 7, caption=
The concentration-effect curves of bupivacaine inhibiting on the CHPG-induced elevation in astrocytes. Preincubation with bupivacaine (10, 30, 100, and 300 μmol·L-1 for 5 min, n = 10, 14, 20 and 12, respectively) inhibited CHPG-induced [Ca2+]i elevation in astrocytes. A: Inhibitory curves of bupivacaine on peak; B: Percent changes in peak; C: Inhibitory curves of bupivacaine on AUC; D: Percent changes in AUC. Cells were exposed to 1 mmol·L-1 CHPG for 20 s. $ \bar x \pm s$. **P < 0.01 vs CHPG group , figureFileSmall=ZqKF0boaYdLUCSffXzWCKg==, figureFileBig=6u6iu7XzoeqUTnoov9vj7w==, 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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