Article(id=1218551222202712942, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1218551220327858844, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2018-0188, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1520179200000, receivedDateStr=2018-03-05, revisedDate=1522512000000, revisedDateStr=2018-04-01, acceptedDate=null, acceptedDateStr=null, onlineDate=1768454850960, onlineDateStr=2026-01-15, pubDate=1531324800000, pubDateStr=2018-07-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1768454850960, onlineIssueDateStr=2026-01-15, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1768454850960, creator=13701087609, updateTime=1768454850960, updator=13701087609, issue=Issue{id=1218551220327858844, tenantId=1146029695717560320, journalId=1189982191388893191, year='2018', volume='53', issue='7', pageStart='1017', pageEnd='1193', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1768454850513, creator=13701087609, updateTime=1768457068973, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1218560525269651614, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1218551220327858844, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1218560525269651615, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1218551220327858844, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1036, endPage=1041, ext={EN=ArticleExt(id=1218551224161452120, articleId=1218551222202712942, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=Effect of cornel iridoid glycoside on PP2Ac phosphorylation in okadaic acid-induced neurotoxicity cells, columnId=1218551221934277457, journalTitle=Acta Pharmaceutica Sinica, columnName=SPECIAL REPORTS·Pharmacology of Chinese Medicine and Nervous Diseases, runingTitle=null, highlight=null, articleAbstract=
Alzheimer's disease (AD) is the most common neurodegenerative disease in the aging population.Abnormal hyperphosphorylation of tau is the main cause of AD.Protein phosphatases 2A (PP2A) can increase the hyperphosphorylation of tau.Cornel iridoid glycoside (CIG) is one of the main components extracted from Cornus of ficinalis.The aim of the present study was to investigate the effects and the underlying mechanisms of CIG on enhancing PP2A activity.SK-N-SH cells were exposed to 20 nmol·L-1 okadaic acid (OA, an inhibitor of PP2A) for 6 h to induce the hyper-phosphorylation of tau, in order to define the effect of CIG on the activity of PP2A and posttranslational modification of PP2A catalytic subunit C (PP2Ac).We found that OA significantly decreased PP2A activity, increased the phosphorylation of PP2Ac, and enhanced tau hyper-phosphorylation.Pre-incubation of CIG significantly attenuated the OA-induced tau hyper-phosphorylation at Ser 199/202 and Ser 396, and recovered the activity of PP2A.CIG inhibited PP2Ac phosphorylation at Tyr 307 and increased Src phosphorylation.In conclusion, the mechanism of CIG inhibition of tau hyper-phosphorylation was activation of PP2A to reduce the level of p-Src for a reduction of PP2Ac phosphorylation at Tyr307.
, correspAuthors=Lin LI, Lan ZHANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2018 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=Cui-cui YANG, Xue-xian KUAI, Li ZHANG, Ya-li LI, Lin LI, Lan ZHANG), CN=ArticleExt(id=1218551226111803716, articleId=1218551222202712942, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=山茱萸环烯醚萜苷对冈田酸拟阿尔茨海默病细胞模型PP2A催化亚基C磷酸化及其调节酶Src的影响, columnId=1218551222261433210, journalTitle=药学学报, columnName=专题报道·中药药理与神经疾患, runingTitle=null, highlight=null, articleAbstract=
微管相关蛋白tau的异常过度磷酸化是阿尔茨海默病(Alzheimer's disease, AD)的重要发病机制之一, 蛋白磷酸酯酶2A (protein phosphatases 2A, PP2A)能够促进tau蛋白的去磷酸化。山茱萸环烯醚萜苷(CIG)是本室从山茱萸中提取的主要有效部位。本实验的目的是研究CIG对PP2A活性及其相关调节酶的影响, 应用PP2A抑制剂冈田酸(okadaic acid, OA)与人神经母细胞瘤细胞株(SK-N-SH细胞)孵育制备拟AD细胞模型; 采用PP2A试剂盒测定细胞内PP2A的活性; 应用Western blot方法检测tau蛋白磷酸化、PP2A催化亚基C (PP2Ac)和Src的表达。结果显示:OA与SK-N-SH细胞孵育6 h后, 显著增高tau蛋白的磷酸化水平, 降低PP2A活性, 增高PP2Ac和Src的磷酸化水平。CIG与细胞预孵育24 h能够明显抑制OA模型细胞tau蛋白在Ser 199/Ser 202位点和Ser 396位点的过度磷酸化, 恢复PP2A活性, 抑制PP2Ac在Tyr 307位点的过度磷酸化和Src在Tyr 416位点的过度磷酸化。提示CIG通过抑制Src在Tyr 416位点的磷酸化降低其活性而抑制PP2Ac的磷酸化, 从而恢复PP2A活性, 促进tau蛋白的去磷酸化, 最终抑制tau蛋白异常过度磷酸化。结果说明CIG可能有利于治疗AD。
, correspAuthors=李林, 张兰, authorNote=null, correspAuthorsNote=
, copyrightStatement=版权所有©《药学学报》编辑部2018, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=50vxsFtFawaO/P9Q53/a0g==, magXml=5/fGlPKBRHcm57Hx2akDiQ==, pdfUrl=null, pdf=Cr1YsAPbZkR149IMWQCpgw==, pdfFileSize=325111, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=8olUc3oVbnUZ5yxgb0grmQ==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=G9Gxs3tEgS7q+bO0DFpCeQ==, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=杨翠翠, 郐学先, 张丽, 李雅莉, 李林, 张兰)}, authors=[Author(id=1218970792172376332, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, 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=1218970792340148513, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, authorId=1218970792172376332, language=EN, stringName=Cui-cui YANG, firstName=Cui-cui, middleName=null, lastName=YANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=1. Department of Pharmacy, Xuanwu Hospital of Capital Medical University, Beijing Engineering Research Center for Nerve System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1218970792495337777, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, authorId=1218970792172376332, language=CN, stringName=杨翠翠, firstName=翠翠, middleName=null, lastName=杨, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=1.首都医科大学宣武医院药学部, 北京市神经药物工程技术研究中心, 北京脑重大疾病研究院, 神经变性病教育部重点实验室, 北京 100053, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1218970791706808553, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, xref=null, ext=[AuthorCompanyExt(id=1218970791719391465, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, companyId=1218970791706808553, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. Department of Pharmacy, Xuanwu Hospital of Capital Medical University, Beijing Engineering Research Center for Nerve System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China), AuthorCompanyExt(id=1218970791736168685, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, companyId=1218970791706808553, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.首都医科大学宣武医院药学部, 北京市神经药物工程技术研究中心, 北京脑重大疾病研究院, 神经变性病教育部重点实验室, 北京 100053)])]), Author(id=1218970792608583999, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, orderNo=1, 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=1218970792705053007, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, authorId=1218970792608583999, language=EN, stringName=Xue-xian KUAI, firstName=Xue-xian, middleName=null, lastName=KUAI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=1. Department of Pharmacy, Xuanwu Hospital of Capital Medical University, Beijing Engineering Research Center for Nerve System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
2. Laboratory of Molecular Biology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1218970792826687838, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, authorId=1218970792608583999, language=CN, stringName=郐学先, firstName=学先, middleName=null, lastName=郐, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=1.首都医科大学宣武医院药学部, 北京市神经药物工程技术研究中心, 北京脑重大疾病研究院, 神经变性病教育部重点实验室, 北京 100053
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1, address=1. Department of Pharmacy, Xuanwu Hospital of Capital Medical University, Beijing Engineering Research Center for Nerve System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1218970793204175247, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, authorId=1218970792944128366, language=CN, stringName=张丽, firstName=丽, middleName=null, lastName=张, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=1.首都医科大学宣武医院药学部, 北京市神经药物工程技术研究中心, 北京脑重大疾病研究院, 神经变性病教育部重点实验室, 北京 100053, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1218970791706808553, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, xref=null, ext=[AuthorCompanyExt(id=1218970791719391465, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, companyId=1218970791706808553, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. Department of Pharmacy, Xuanwu Hospital of Capital Medical University, Beijing Engineering Research Center for Nerve System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China), AuthorCompanyExt(id=1218970791736168685, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, companyId=1218970791706808553, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.首都医科大学宣武医院药学部, 北京市神经药物工程技术研究中心, 北京脑重大疾病研究院, 神经变性病教育部重点实验室, 北京 100053)])]), Author(id=1218970793325810077, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, orderNo=3, 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=1218970793422279081, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, authorId=1218970793325810077, language=EN, stringName=Ya-li LI, firstName=Ya-li, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=1. Department of Pharmacy, Xuanwu Hospital of Capital Medical University, Beijing Engineering Research Center for Nerve System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1218970793602634174, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, authorId=1218970793325810077, language=CN, stringName=李雅莉, firstName=雅莉, middleName=null, lastName=李, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=1.首都医科大学宣武医院药学部, 北京市神经药物工程技术研究中心, 北京脑重大疾病研究院, 神经变性病教育部重点实验室, 北京 100053, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1218970791706808553, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, xref=null, ext=[AuthorCompanyExt(id=1218970791719391465, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, companyId=1218970791706808553, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. Department of Pharmacy, Xuanwu Hospital of Capital Medical University, Beijing Engineering Research Center for Nerve System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China), AuthorCompanyExt(id=1218970791736168685, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, companyId=1218970791706808553, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.首都医科大学宣武医院药学部, 北京市神经药物工程技术研究中心, 北京脑重大疾病研究院, 神经变性病教育部重点实验室, 北京 100053)])]), Author(id=1218970793703297481, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, orderNo=4, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=lanizhg@126.com, emailSecond=null, emailThird=null, correspondingAuthor=1, authorType=1, ext={EN=AuthorExt(id=1218970793816543705, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, authorId=1218970793703297481, language=EN, stringName=Lin LI, firstName=Lin, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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Department of Pharmacy, Xuanwu Hospital of Capital Medical University, Beijing Engineering Research Center for Nerve System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China), AuthorCompanyExt(id=1218970791736168685, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, companyId=1218970791706808553, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.首都医科大学宣武医院药学部, 北京市神经药物工程技术研究中心, 北京脑重大疾病研究院, 神经变性病教育部重点实验室, 北京 100053)]), AuthorCompany(id=1218970792004604156, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, xref=null, ext=[AuthorCompanyExt(id=1218970792029769987, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, companyId=1218970792004604156, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2. 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Effect of cornel iridoid glycoside (CIG) on tau hyper- phosphorylation in okadaic acid (OA)-induced cells, cells were exposed to OA for 6 h after incubation with CIG (50, 100, 200 μg·mL-1). A: The levels of tau phosphorylation at different sites were detected by Western blot. pS 199/202: Tau phosphorylation at Ser 199/Ser 202; pS 396: Tau phosphorylation at Ser 396; Tau 5: Total 5. B: Quantitative analysis of tau phosphorylation. n = 3, $\overline{x}±s$. ##P < 0.01 vs control group; **P < 0.01 vs model group
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The effect of CIG on phosphorylation of PP2Ac in OA-induced cells, cells were exposed to OA for 6 h after the incubation with CIG (50, 100, 200 mg·mL-1). A: The levels of PP2Ac and phosphorylated PP2Ac (p-PP2Ac) at Tyr 307 site were detected by Western blot; B: Quantitative analysis of PP2Ac and p-PP2Ac. n = 3, $\overline{x}±s$. #P < 0.05 vs control group; *P < 0.05 vs model group
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The effect of CIG on phosphorylation of Src in OA-induced cells, cells were exposed to OA for 6 h after the incubation with CIG (50, 100, 200 mg·mL-1). A: The levels of Src and phosphorylated Src (p-Src) at Ser 416 site were detected by Western blot; B: Quantitative analysis of Src and p-Src. n = 3, $\overline{x}±s$. #P < 0.05 vs control group; *P < 0.05, **P < 0.01 vs model group
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Schematic diagram of CIG inhibiting tau hyper-phosphorylation. PP2A consists of a dimeric core enzyme composed of the structure A and catalytic subunit C, and a regulatory subunit B
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| Antibody name | Class | Clone | Action site | Company |
| pS 199/202 | Poly- | p-Tau | Ser 199/202 | Invitrogen |
| pS 396 | Poly- | p-Tau | Ser 396 | Invitrogen |
| Tau-5 | Mono- | Total tau | | Calbiochem |
| p-PP2Ac | Poly- | p-PP2A | Tyr 307 | Santa cruz |
| PP2Ac | Poly- | PP2A | | Santa cruz |
| p-Src | Poly- | | Tyr 416 | Invitrogen |
| Src | Poly- | | | Cell signaling |
| GAPDH | Mono- | GAPDH | | ZSGB-BIO |
), ArticleFig(id=1218970799889896270, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, language=CN, label=Table 1, caption=
Primary antibodies used in this study. Poly-: Polyclonal; Mono-: Monoclonal; PP2Ac: Protein phosphatases 2A catalytic subunit C; GAPDH: Glyceraldehyde-3-phosphate dehydrogenase
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| Antibody name | Class | Clone | Action site | Company |
| pS 199/202 | Poly- | p-Tau | Ser 199/202 | Invitrogen |
| pS 396 | Poly- | p-Tau | Ser 396 | Invitrogen |
| Tau-5 | Mono- | Total tau | | Calbiochem |
| p-PP2Ac | Poly- | p-PP2A | Tyr 307 | Santa cruz |
| PP2Ac | Poly- | PP2A | | Santa cruz |
| p-Src | Poly- | | Tyr 416 | Invitrogen |
| Src | Poly- | | | Cell signaling |
| GAPDH | Mono- | GAPDH | | ZSGB-BIO |
), ArticleFig(id=1218970800024114015, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218551222202712942, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| Group | Relative activity of PP2A /% |
| Control | 100.00 ± 5.00 |
| Control + CIG 100 μg·mL-1 | 94.52 ± 1.24 |
| Model | 78.09 ± 10.35# |
| Model + CIG 50 μg·mL-1 | 104.30 ± 9.15* |
| 100 μg·mL-1 | 98.90 ± 9.44* |
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The effect of CIG on protein phosphatases 2A (PP2A) activity. The PP2A activity of control group was set as 100%. n = 3, $\overline{x}±s$. #P < 0.05 vs control group; *P < 0.05 vs model group
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| Group | Relative activity of PP2A /% |
| Control | 100.00 ± 5.00 |
| Control + CIG 100 μg·mL-1 | 94.52 ± 1.24 |
| Model | 78.09 ± 10.35# |
| Model + CIG 50 μg·mL-1 | 104.30 ± 9.15* |
| 100 μg·mL-1 | 98.90 ± 9.44* |
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