Article(id=1239174987345612930, tenantId=1146029695717560320, journalId=1205117082300743687, issueId=1239174986137661844, articleNumber=null, orderNo=null, doi=10.14109/j.cnki.xyylc.2024.04.08, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1645804800000, receivedDateStr=2022-02-26, revisedDate=null, revisedDateStr=null, acceptedDate=1701014400000, acceptedDateStr=2023-11-27, onlineDate=1773371939741, onlineDateStr=2026-03-13, pubDate=1713974400000, pubDateStr=2024-04-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773371939741, onlineIssueDateStr=2026-03-13, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773371939741, creator=13701087609, updateTime=1773371939741, updator=13701087609, issue=Issue{id=1239174986137661844, tenantId=1146029695717560320, journalId=1205117082300743687, year='2024', volume='43', issue='4', pageStart='241', pageEnd='320', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773371939453, creator=13701087609, updateTime=1773372128807, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1239175780396233704, tenantId=1146029695717560320, journalId=1205117082300743687, issueId=1239174986137661844, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1239175780396233705, tenantId=1146029695717560320, journalId=1205117082300743687, issueId=1239174986137661844, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=279, endPage=284, ext={EN=ArticleExt(id=1239174987584688260, articleId=1239174987345612930, tenantId=1146029695717560320, journalId=1205117082300743687, language=EN, title=Effects of Platycodon grandiflorum extract on proliferation and metastasis of rheumatoid arthritis fibroblast-like synovial cells based on RhoA/ROCK pathway, columnId=1207314218647392369, journalTitle=Chinese Journal of New Drugs and Clinical Remedies, columnName=Original Article, runingTitle=null, highlight=null, articleAbstract=
AIM

To investigate the effects of Platycodon grandiflorum extract(PGE)on the proliferation and metastasis of fibroblast-like synovial cells in rheumatoid arthritis(RA)and its mechanism of action.

METHODS

Fibroblast-like synovial cells MH7A were divided into control group, PGE-L group(25 mg·L-1 PGE), PGE-M group(50 mg·L-1 PGE), PGE-H group(100 mg·L-1 PGE), PGE + angiotensin(Ang)Ⅱ group(100 mg·L-1 PGE + 100 nmol·L-1 Ras homologous gene family member A(RhoA)/Rho kinase(ROCK)pathway activator AngⅡ), and treated accordingly. Cell proliferation, apoptosis, migration and invasion were detected by CCK-8 method, flow cytometry and Transwell, respectively.The expression levels of related proteins were detected by Western blot, and the RhoA activity in cells was detected by GST-pull down method.

RESULTS

Compared with the control group, absorbance value(24, 48 and 72 h after PGE treatment),the number of migrating and invading cells, the expression of cyclin D1, matrix metalloproteinase(MMP)-2, MMP-9,ROCK1 and ROCK2 proteins, and the activity of RhoA were significantly reduced, and p21 protein expression and the apoptosis rate were increased in PGE-L group, PGE-M group, and PGE-H group, and the higher the concentration of PGE,the more obvious the corresponding trend was(P<0.05). Compared with the PGE-H group, the absorbance value(24, 48,72 h after PGE treatment), the number of migratory and invasive cells, the expression of cyclin D1, MMP-2, MMP-9, ROCK1,ROCK2 protein and RhoA activity were increased, amd p21 protein expression and apoptosis rate decreased in PGE + Ang Ⅱgroup(P<0.05).

CONCLUSION

PGE can inhibit the proliferation and metastasis of MH7A cells, which may be related to the inhibition of RhoA/ROCK pathway.

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目的

探讨桔梗提取物(PGE)对类风湿关节炎(RA)成纤维样滑膜细胞增殖和转移的影响及其作用机制。

方法

将成纤维样滑膜细胞MH7A细胞分为对照组、PGE-L组(25 mg·L-1 PGE)、PGE-M组(50 mg·L-1 PGE)、PGE-H组(100 mg·L-1 PGE)、PGE +血管紧张素(Ang)Ⅱ组[100 mg·L-1 PGE + 100 nmol·L-1 Ras同源基因家族成员A(RhoA)/Rho激酶(ROCK)通路激活剂AngⅡ],给予相应的处理。采用CCK-8法、流式细胞术、Transwell实验分别检测细胞增殖、凋亡、迁移与侵袭情况,Western blot法检测相关蛋白表达水平,GST-pull down法检测细胞中RhoA活性。

结果

与对照组比较,PGE-L组、PGE-M组、PGE-H组的吸光度值(PGE处理24、48、72h)、迁移及侵袭细胞数目、细胞周期蛋白D1(cyclin D1)、基质金属蛋白酶(MMP)-2、MMP-9、ROCK1、ROCK2蛋白表达及RhoA活性降低,p21蛋白表达及细胞凋亡率升高(P<0.05),且PGE的浓度越高,对应的趋势越明显(P<0.05)。与PGE-H组比较,PGE+AngⅡ组的吸光度值(PGE处理24、48、72 h)、迁移及侵袭细胞数目、cyclin D1、MMP-2、MMP-9、ROCK1、ROCK2蛋白表达及RhoA活性升高,p21蛋白表达及细胞凋亡率降低(P<0.05)。

结论

PGE可抑制MH7A细胞增殖与转移,该机制可能与抑制RhoA/ROCK通路有关。

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王洋,女,主治医师,学士,主要从事中医综合治疗的研究,E-mail:

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J Hubei Univ Chin Med, 2016, 18(6): 17-20., articleTitle=Effects of warm acupuncture on the expression of protein RhoA protein in rheumatoid arthritis rats, refAbstract=null)], funds=[Fund(id=1239213767628747528, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, awardId=2016-zj-936Q, language=CN, fundingSource=青海省科技项目(2016-zj-936Q), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1239213760771060259, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, xref=null, ext=[AuthorCompanyExt(id=1239213760779448867, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, companyId=1239213760771060259, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Department of Traditional Chinese Medicine, Qinghai Fifth People’s Hospital, Xining QINGHAI 810001, China), AuthorCompanyExt(id=1239213760787837477, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, companyId=1239213760771060259, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=青海省第五人民医院 中医科,青海 西宁 810001)])], figs=[ArticleFig(id=1239213764436882099, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, language=EN, label=null, caption=null, figureFileSmall=TYAWR/Oqy+eVlIPR0F66Jw==, figureFileBig=Wy0aFNzGd9SukPIayIHOvw==, tableContent=null), ArticleFig(id=1239213764503990967, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, language=CN, label=图1, caption=流式细胞术检测各组MH7A细胞凋亡

A:对照组,B:PGE-L组,C:PGE-M组,D:PGE-H组,E:PGE+AngⅡ组,PGE:桔梗提取物,Ang:血管紧张素

, figureFileSmall=TYAWR/Oqy+eVlIPR0F66Jw==, figureFileBig=Wy0aFNzGd9SukPIayIHOvw==, tableContent=null), ArticleFig(id=1239213764613042880, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, language=EN, label=null, caption=null, figureFileSmall=EboSK3GQE0RkX8mG8hNzVQ==, figureFileBig=/UiUWghouuUmIy6Aq2JTUA==, tableContent=null), ArticleFig(id=1239213764680151750, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, language=CN, label=图2, caption=Transwell检测各组MH7A细胞迁移与侵袭情况

A:对照组,B:PGE-L组,C:PGE-M组,D:PGE-H组,E:PGE+AngⅡ组,PGE:桔梗提取物,Ang:血管紧张素

, figureFileSmall=EboSK3GQE0RkX8mG8hNzVQ==, figureFileBig=/UiUWghouuUmIy6Aq2JTUA==, tableContent=null), ArticleFig(id=1239213764755649225, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, language=EN, label=null, caption=null, figureFileSmall=FiHbe8SCEKZa4wWuLxy4dg==, figureFileBig=IkI1/adT4j0Gv3pyq6m6Qw==, tableContent=null), ArticleFig(id=1239213764868895436, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, language=CN, label=图3, caption=Western blot法检测各组MH7A细胞中cyclin D1、p21、MMP-2、MMP-9蛋白表达

A:对照组,B:PGE-L组,C:PGE-M组,D:PGE-H组,E:PGE+AngⅡ组,MMP:基质金属蛋白酶,cyclin:细胞周期蛋白,PGE:桔梗提取物,Ang:血管紧张素

, figureFileSmall=FiHbe8SCEKZa4wWuLxy4dg==, figureFileBig=IkI1/adT4j0Gv3pyq6m6Qw==, tableContent=null), ArticleFig(id=1239213764956975825, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, language=EN, label=null, caption=null, figureFileSmall=z+1yb+uswuQMPBrkQ6fmnQ==, figureFileBig=8u3GBZiJckxzwUeI4mwk6g==, tableContent=null), ArticleFig(id=1239213765095387863, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, language=CN, label=图4, caption=GST-pull down法检测各组MH7A细胞中Rho A活性

A:对照组,B:PGE-L组,C:PGE-M组,D:PGE-H组,E:PGE+AngⅡ组,RhoA:Ras同源基因家族成员A,PGE:桔梗提取物,Ang:血管紧张素

, figureFileSmall=z+1yb+uswuQMPBrkQ6fmnQ==, figureFileBig=8u3GBZiJckxzwUeI4mwk6g==, tableContent=null), ArticleFig(id=1239213765179273947, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, language=EN, label=null, caption=null, figureFileSmall=NyLnr8O1UZWTWfBYIFivGA==, figureFileBig=XcIgjXuuMwcsHLMSajzpDw==, tableContent=null), ArticleFig(id=1239213765254771423, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, language=CN, label=图5, caption=Western blot法检测各组MH7A细胞中ROCK1、ROCK2蛋白表达

A:对照组,B:PGE-L组,C:PGE-M组,D:PGE-H组,E:PGE+AngⅡ组,ROCK:Rho激酶,PGE:桔梗提取物,Ang:血管紧张素

, figureFileSmall=NyLnr8O1UZWTWfBYIFivGA==, figureFileBig=XcIgjXuuMwcsHLMSajzpDw==, tableContent=null), ArticleFig(id=1239213765372211938, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
组别0 h24 h48 h72 h
对照0.20±0.030.59±0.060.87±0.111.25±0.16
PGE-L0.24±0.05a0.51±0.05b0.74±0.09b1.04±0.09b
PGE-M0.23±0.06ad0.42±0.03be0.62±0.06be0.83±0.07be
PGE-H0.22±0.04adg0.29±0.01beh0.49±0.03beh0.65±0.07beh
PGE+Ang Ⅱ0.23±0.05j0.48±0.03k0.73±0.05k0.93±0.10k
), ArticleFig(id=1239213765485458152, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, language=CN, label=表1, caption=

各组MH7A细胞处理0、24、48、72 h时的吸光度值比较

, figureFileSmall=null, figureFileBig=null, tableContent=
组别0 h24 h48 h72 h
对照0.20±0.030.59±0.060.87±0.111.25±0.16
PGE-L0.24±0.05a0.51±0.05b0.74±0.09b1.04±0.09b
PGE-M0.23±0.06ad0.42±0.03be0.62±0.06be0.83±0.07be
PGE-H0.22±0.04adg0.29±0.01beh0.49±0.03beh0.65±0.07beh
PGE+Ang Ⅱ0.23±0.05j0.48±0.03k0.73±0.05k0.93±0.10k
), ArticleFig(id=1239213765623870187, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
组别细胞凋亡率/%迁移细胞/个侵袭细胞/个
对照8.7±1.2156.5±18.796.7±11.2
PGE-L14.7±2.0b116.7±10.8b71.9±9.4b
PGE-M26.6±4.2be86.4±9.2be49.5±6.0be
PGE-H39.6±5.1beh43.7±5.9beh24.6±3.7beh
PGE+AngⅡ16.3±2.3k108.8±12.6k68.7±2.5k
), ArticleFig(id=1239213765724533488, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, language=CN, label=表2, caption=

各组MH7A细胞凋亡、迁移与侵袭情况比较

, figureFileSmall=null, figureFileBig=null, tableContent=
组别细胞凋亡率/%迁移细胞/个侵袭细胞/个
对照8.7±1.2156.5±18.796.7±11.2
PGE-L14.7±2.0b116.7±10.8b71.9±9.4b
PGE-M26.6±4.2be86.4±9.2be49.5±6.0be
PGE-H39.6±5.1beh43.7±5.9beh24.6±3.7beh
PGE+AngⅡ16.3±2.3k108.8±12.6k68.7±2.5k
), ArticleFig(id=1239213765837779701, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
组别cyclin D1p21MMP-2MMP-9
对照0.85±0.130.25±0.020.79±0.120.86±0.14
PGE-L0.71±0.09b0.36±0.04b0.65±0.10b0.69±0.11b
PGE-M0.58±0.05be0.49±0.05be0.46±0.06be0.51±0.12be
PGE-H0.27±0.04beh0.72±0.08beh0.29±0.04beh0.33±0.04beh
PGE+AngⅡ0.63±0.04k0.39±0.03k0.62±0.04k0.68±0.05k
), ArticleFig(id=1239213765934248697, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, language=CN, label=表3, caption=

各组MH7A细胞中cyclin D1、p21、MMP-2、MMP-9蛋白表达比较

, figureFileSmall=null, figureFileBig=null, tableContent=
组别cyclin D1p21MMP-2MMP-9
对照0.85±0.130.25±0.020.79±0.120.86±0.14
PGE-L0.71±0.09b0.36±0.04b0.65±0.10b0.69±0.11b
PGE-M0.58±0.05be0.49±0.05be0.46±0.06be0.51±0.12be
PGE-H0.27±0.04beh0.72±0.08beh0.29±0.04beh0.33±0.04beh
PGE+AngⅡ0.63±0.04k0.39±0.03k0.62±0.04k0.68±0.05k
), ArticleFig(id=1239213766022329085, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
组别RhoA活性ROCK1/GAPDHROCK2/GAPDH
对照0.98±0.111.01±0.080.75±0.06
PGE-L0.77±0.08b0.75±0.05b0.53±0.04b
PGE-M0.56±0.06be0.52±0.04be0.34±0.02be
PGE-H0.32±0.05beh0.29±0.02beh0.14±0.01beh
PGE+AngⅡ0.71±0.05k0.68±0.05k0.42±0.04k
), ArticleFig(id=1239213767490335489, tenantId=1146029695717560320, journalId=1205117082300743687, articleId=1239174987345612930, language=CN, label=表5, caption=

各组MH7A细胞中RhoA活性、ROCK1、ROCK2蛋白表达比较

, figureFileSmall=null, figureFileBig=null, tableContent=
组别RhoA活性ROCK1/GAPDHROCK2/GAPDH
对照0.98±0.111.01±0.080.75±0.06
PGE-L0.77±0.08b0.75±0.05b0.53±0.04b
PGE-M0.56±0.06be0.52±0.04be0.34±0.02be
PGE-H0.32±0.05beh0.29±0.02beh0.14±0.01beh
PGE+AngⅡ0.71±0.05k0.68±0.05k0.42±0.04k
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基于RhoA/ROCK通路探讨桔梗提取物对类风湿关节炎成纤维样滑膜细胞增殖及转移的影响
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王洋 , 田伟峰 , 毛文娟
中国新药与临床杂志 | 论著 2024,43(4): 279-284
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中国新药与临床杂志 | 论著 2024, 43(4): 279-284
基于RhoA/ROCK通路探讨桔梗提取物对类风湿关节炎成纤维样滑膜细胞增殖及转移的影响
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王洋 , 田伟峰, 毛文娟
作者信息
  • 青海省第五人民医院 中医科,青海 西宁 810001
  • 王洋,女,主治医师,学士,主要从事中医综合治疗的研究,E-mail:

Effects of Platycodon grandiflorum extract on proliferation and metastasis of rheumatoid arthritis fibroblast-like synovial cells based on RhoA/ROCK pathway
Yang WANG , Wei-feng TIAN, Wen-juan MAO
Affiliations
  • Department of Traditional Chinese Medicine, Qinghai Fifth People’s Hospital, Xining QINGHAI 810001, China
出版时间: 2024-04-25 doi: 10.14109/j.cnki.xyylc.2024.04.08
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目的

探讨桔梗提取物(PGE)对类风湿关节炎(RA)成纤维样滑膜细胞增殖和转移的影响及其作用机制。

方法

将成纤维样滑膜细胞MH7A细胞分为对照组、PGE-L组(25 mg·L-1 PGE)、PGE-M组(50 mg·L-1 PGE)、PGE-H组(100 mg·L-1 PGE)、PGE +血管紧张素(Ang)Ⅱ组[100 mg·L-1 PGE + 100 nmol·L-1 Ras同源基因家族成员A(RhoA)/Rho激酶(ROCK)通路激活剂AngⅡ],给予相应的处理。采用CCK-8法、流式细胞术、Transwell实验分别检测细胞增殖、凋亡、迁移与侵袭情况,Western blot法检测相关蛋白表达水平,GST-pull down法检测细胞中RhoA活性。

结果

与对照组比较,PGE-L组、PGE-M组、PGE-H组的吸光度值(PGE处理24、48、72h)、迁移及侵袭细胞数目、细胞周期蛋白D1(cyclin D1)、基质金属蛋白酶(MMP)-2、MMP-9、ROCK1、ROCK2蛋白表达及RhoA活性降低,p21蛋白表达及细胞凋亡率升高(P<0.05),且PGE的浓度越高,对应的趋势越明显(P<0.05)。与PGE-H组比较,PGE+AngⅡ组的吸光度值(PGE处理24、48、72 h)、迁移及侵袭细胞数目、cyclin D1、MMP-2、MMP-9、ROCK1、ROCK2蛋白表达及RhoA活性升高,p21蛋白表达及细胞凋亡率降低(P<0.05)。

结论

PGE可抑制MH7A细胞增殖与转移,该机制可能与抑制RhoA/ROCK通路有关。

桔梗  /  关节炎,类风湿  /  滑膜细胞  /  肿瘤转移  /  增殖  /  桔梗提取物
AIM

To investigate the effects of Platycodon grandiflorum extract(PGE)on the proliferation and metastasis of fibroblast-like synovial cells in rheumatoid arthritis(RA)and its mechanism of action.

METHODS

Fibroblast-like synovial cells MH7A were divided into control group, PGE-L group(25 mg·L-1 PGE), PGE-M group(50 mg·L-1 PGE), PGE-H group(100 mg·L-1 PGE), PGE + angiotensin(Ang)Ⅱ group(100 mg·L-1 PGE + 100 nmol·L-1 Ras homologous gene family member A(RhoA)/Rho kinase(ROCK)pathway activator AngⅡ), and treated accordingly. Cell proliferation, apoptosis, migration and invasion were detected by CCK-8 method, flow cytometry and Transwell, respectively.The expression levels of related proteins were detected by Western blot, and the RhoA activity in cells was detected by GST-pull down method.

RESULTS

Compared with the control group, absorbance value(24, 48 and 72 h after PGE treatment),the number of migrating and invading cells, the expression of cyclin D1, matrix metalloproteinase(MMP)-2, MMP-9,ROCK1 and ROCK2 proteins, and the activity of RhoA were significantly reduced, and p21 protein expression and the apoptosis rate were increased in PGE-L group, PGE-M group, and PGE-H group, and the higher the concentration of PGE,the more obvious the corresponding trend was(P<0.05). Compared with the PGE-H group, the absorbance value(24, 48,72 h after PGE treatment), the number of migratory and invasive cells, the expression of cyclin D1, MMP-2, MMP-9, ROCK1,ROCK2 protein and RhoA activity were increased, amd p21 protein expression and apoptosis rate decreased in PGE + Ang Ⅱgroup(P<0.05).

CONCLUSION

PGE can inhibit the proliferation and metastasis of MH7A cells, which may be related to the inhibition of RhoA/ROCK pathway.

Platycodonis radix  /  arthritis, rheumatoid  /  synoviocytes  /  neoplasm metastasis  /  proliferation  /  Platycodon grandiflorum extract
王洋, 田伟峰, 毛文娟. 基于RhoA/ROCK通路探讨桔梗提取物对类风湿关节炎成纤维样滑膜细胞增殖及转移的影响. 中国新药与临床杂志, 2024 , 43 (4) : 279 -284 . DOI: 10.14109/j.cnki.xyylc.2024.04.08
Yang WANG, Wei-feng TIAN, Wen-juan MAO. Effects of Platycodon grandiflorum extract on proliferation and metastasis of rheumatoid arthritis fibroblast-like synovial cells based on RhoA/ROCK pathway[J]. Chinese Journal of New Drugs and Clinical Remedies, 2024 , 43 (4) : 279 -284 . DOI: 10.14109/j.cnki.xyylc.2024.04.08
类风湿关节炎(RA)是一种自身免疫病,主要特征表现为肢体关节炎症持续时间长,导致骨侵蚀,甚至畸形和残疾[1]。大量研究证实,RA成纤维样滑膜细胞参与了滑膜关节的慢性炎症,可诱发软骨和骨骼损伤,在RA进展中发挥关键作用[2]。在RA发病机制中,激活的成纤维样滑膜细胞表现出与肿瘤细胞相似的增殖、转移特征,这是异常增生和关节破坏的主要触发因素[3],因此寻找抑制RA成纤维样滑膜细胞增殖和转移的药物具有重要意义。桔梗是桔梗科多年生植物,含有类黄酮、多酚和三萜皂苷等活性化合物,具有抗炎、抗氧化、抗癌、免疫调节等多种药理活性[4]。桔梗提取物(Platycodon grandiflorum extract,PGE)能减轻RA大鼠关节肿胀程度,并抑制炎症反应[5]。有研究发现,Ras同源基因家族成员A(RhoA)/ Rho激酶(ROCK)通路对RA成纤维样滑膜细胞分泌趋化因子具有一定的调控作用,抑制该通路对于治疗RA是有利的[6]。但PGE对RA成纤维样滑膜细胞增殖及转移的影响以及可能机制尚不清楚,因此本研究观察PGE对RA成纤维样滑膜细胞增殖、转移及RhoA / ROCK通路的影响。
RA成纤维样滑膜细胞MH7A购自上海冠导生物公司。一年野生九桔兰花桔梗购自西宁市市场;CCK-8试剂盒购自赛因百奥生物技术(北京)公司;血管紧张素(angiotensin,Ang)Ⅱ购自北京索莱宝科技有限公司;annexin V-FITC/PI细胞凋亡检测试剂盒购自武汉益普生物公司;BCA试剂盒购自碧云天生物科技有限公司;ECL化学发光试剂盒购自广州吉赛生物科技有限公司;兔多克隆抗体细胞周期蛋白D1(cyclin D1)、p21、基质金属蛋白酶(MMP)-2、MMP-9、ROCK1、ROCK2、GAPDH、RhoA及辣根过氧化物酶(HRP)标记的羊抗兔二抗均购自英国Abcam公司。酶标仪购自上海研卉生物公司,FACSCantoⅡ型流式细胞仪购自美国BD公司。
取新鲜桔梗3 000 g,置于水中浸泡30 min后,清洗、晾干、切成薄片,将薄片置于70%乙醇50 L中提取,过滤、减压、浓缩,乙醇蒸发后得浓度为5 kg·L-1的浓缩液600 mL用于后续实验。经鉴定,PGE主要成分包括桔梗皂苷D、桔梗总皂苷以及其他黄酮类化合物。
将MH7A细胞置于含有10%胎牛血清(FBS)的DMEM培养基,在37 ℃下,含有5% CO2的培养箱中进行常规传代培养。取对数生长期的MH7A细胞,参考既往研究[78]及前期预实验结果,将细胞分为5组:对照组(细胞未经过任何处理)、PGE-L组(给予终浓度为25 mg·L-1 PGE处理)、PGE-M组(给予终浓度为50 mg·L-1 PGE处理)、PGE-H组(给予终浓度为100 mg·L-1 PGE处理)、PGE+Ang Ⅱ组(给予终浓度为100 mg·L-1 PGE和100 nmol·L-1 RhoA/ROCK通路激活剂Ang Ⅱ共同处理)。
采用CCK-8法检测。将MH7A细胞以2×108个·L-1接种于96孔培养板中生长。24 h后,将MH7A细胞按照“细胞培养与分组”中进行处理,分别在细胞处理的0、24、48、72 h时向每孔中加入CCK-8溶液10 μL,37 ℃孵育2 h,通过酶标仪测量450 nm处的吸光度(A)值。
采用流式细胞术检测。收集处理24 h的各组细胞,用PBS洗涤两次后,加入结合缓冲液500 μL悬浮细胞,随后加入annexin V-FITC 5 μL和PI 10 μL于避光条件下孵育20min,流式细胞仪检测细胞凋亡情况。
采用Transwell实验[9]检测。细胞迁移:以无FBS的DMEM培养基将MH7A细胞浓度调整为1×109个·L-1,取200 μL加入到Transwell上室中,向下室中加入含10% FBS的DMEM培养基500 μL,孵育48 h后,将迁移的细胞用多聚甲醛固定,0.2%结晶紫室温染色后,在光学显微镜下观察细胞迁移情况。细胞侵袭:将基质胶涂于Transwell上室中,待其自然干燥后,将各组MH7A细胞以无FBS的DMEM培养基调整细胞浓度为1×109个·L-1,剩余步骤同细胞迁移实验。
采用Western blot法检测。用RIPA裂解缓冲液提取蛋白质,蛋白质经定量、电泳、转膜、封闭后,加入一抗cyclin D1(1:2 000)、p21(1:1 000)、MMP-2(1:1 000)、MMP-9(1:1 000)、ROCK1(1:3 000)、ROCK2(1:3 000)、GAPDH(1:2 000),在4 ℃下孵育过夜。次日,用TBST洗涤3次后,加入HRP偶联的羊抗兔二抗(1:1 000),在室温下孵育1 h,然后通过ECL试剂观察蛋白显色,最后以GAPDH为内部参照,Image J软件分析各个蛋白的灰度值。
采用GST-pull down方法[10]检测。用裂解缓冲液裂解各组细胞,收集裂解物并离心,取上清液530 μL分成两份。(1)取上清液30 μL,通过Western blot法检测总RhoA蛋白表达水平;(2)取上清液500 μL,加入Rho结合域(RBD)-GST与琼脂糖珠混合,冰浴中孵育1 h后,将混合物离心并弃去上清液。洗涤3次后,加入上样缓冲液重悬,煮沸5 min,10% SDS-PAGE电泳后电转至PVDF膜上,5%BSA封闭,加入兔多克隆抗体RhoA,4 ℃下孵育过夜。次日,用TBST洗涤后,加入二抗在室温下孵育1 h,用凝胶成像系统分析蛋白水平。以GTP-RhoA蛋白/总RhoA蛋白表示RhoA的活性。
采用SPSS 16.0软件进行统计分析,数据以均值±标准差表示,多组数据间的比较采用单因素方差分析,2组间比较采用SNK-q检验。P<0.05为差异有显著意义。
与对照组比较,PGE-L组、PGE-M组、PGE-H组在细胞处理24、48、72 h时的A值均显著降低;且随着PGE浓度的升高,A值显著降低(P<0.05)。与PGE-H组比较,PGE+Ang Ⅱ组24、48、72 h时的A值显著升高(P<0.05)。见表1
与对照组比较,PGE-L组、PGE-M组、PGE-H组的MH7A细胞凋亡率显著升高(P<0.05);且随着PGE浓度的升高,细胞凋亡率显著升高(P<0.05)。与PGE-H组比较,PGE+AngⅡ组MH7A细胞凋亡率显著降低(P<0.05),见表2图1
与对照组比较,PGE-L组、PGE-M组、PGE-H组MH7A细胞迁移、侵袭数目显著降低(P<0.05);且随着PGE浓度的升高,MH7A细胞迁移、侵袭数目显著降低(P<0.05)。与PGE-H组比较,PGE+AngⅡ组MH7A细胞迁移、侵袭数目显著升高(P<0.05)。见表2图2
与对照组比较,PGE-L组、PGE-M组、PGE-H组MH7A细胞中p21蛋白表达升高,cyclin D1、MMP-2、MMP-9蛋白表达降低,差异均有显著意义(P<0.05);且PGE浓度越高,对应蛋白变化的趋势越明显(P<0.05)。与PGE-H组比较,PGE+AngⅡ组MH7A细胞中p21蛋白表达显著降低,cyclin D1、MMP-2、MMP-9蛋白表达显著升高(P<0.05)。见表3图3
与对照组比较,PGE-L组、PGE-M组、PGE-H组MH7A细胞中RhoA活性和ROCK1、 ROCK2蛋白表达降低,总RhoA蛋白表达水平无显著变化,且随着PGE浓度的升高,MH7A细胞中RhoA活性和ROCK1、ROCK2蛋白表达水平显著降低(P<0.05)。与PGE-H组比较,PGE+AngⅡ组MH7A细胞中RhoA活性和ROCK1、ROCK2蛋白表达升高(P<0.05),总RhoA蛋白表达无显著变化,见图4图5表5
RA是一种慢性自身免疫病,由于目前使用的抗RA药物会引起较严重的不良反应,因此,迫切需要研发一些毒性较小的药物来治疗RA,以期提高RA患者的生活质量[11]。桔梗作为草药可用来治疗呼吸系统疾病、哮喘和糖尿病,有研究发现PGE通过抑制炎症反应而发挥治疗鸡传染性喉气管炎的作用[1213]。本研究结果显示,PGE可显著抑制MH7A细胞增殖、迁移与侵袭,诱导细胞凋亡,且PGE浓度越高,对应的趋势越明显,提示PGE可通过影响MH7A细胞行为来改善RA。cyclin D1可与细胞周期蛋白依赖性激酶相结合,促进RA成纤维样滑膜细胞细胞周期从G1期转向S期,具有促进细胞增殖的作用,而p21在细胞生命活动中具有抗增殖作用[14]。当RA发生时,成纤维样滑膜细胞会分泌大量的促炎性细胞因子以及MMPs,MMPs通过降解细胞外基质进而引发软骨和骨骼损伤[15]。本研究结果发现,PGE可明显抑制MH7A细胞中cyclin D1、MMP-2、MMP-9蛋白的表达,上调p21蛋白的表达,且PGE浓度越高,MH7A细胞中对应蛋白变化趋势越明显,提示PGE可通过调控cyclin D1、MMP-2、MMP-9、p21蛋白表达影响MH7A细胞增殖、迁移、侵袭及凋亡进而改善RA,PGE可能成为治疗RA的潜在有效药物。
RhoA是小分子GTP酶,而ROCK为RhoA信号通路下游的一个靶标,有ROCK1和ROCK2两种亚型,RhoA/ROCK通路参与细胞的生长、分化、迁移和发育[16]。有研究证明,欧前胡素通过抑制RhoA/ROCK1通路抑制人前列腺癌PC3细胞恶性生物学行为[17];温针灸通过抑制RA大鼠膝关节滑膜组织中RhoA蛋白表达,可减轻RA大鼠关节炎性损伤状况[18]。本研究结果显示,PGE可明显抑制MH7A细胞中RhoA活性及ROCK1、ROCK2蛋白的表达,且PGE浓度越高,对应的趋势越明显。推测PGE可能通过抑制RhoA/ROCK通路来抑制MH7A细胞的增殖、迁移与侵袭。为了进一步证实该推测,本研究用PGE和RhoA/ROCK通路激活剂AngⅡ共同干预MH7A细胞,结果发现,AngⅡ减弱了高剂量PGE对MH7A细胞增殖、迁移与侵袭的抑制作用以及对细胞凋亡的促进作用,提示PGE对MH7A细胞的影响可能与抑制RhoA/ROCK通路有关。
综上所述,PGE可抑制MH7A细胞的增殖与转移,该作用可能与抑制RhoA/ROCK通路有关,但PGE抑制MH7A细胞增殖与转移的作用机制较为复杂,且具体通过RhoA/ROCK通路下游的哪些蛋白来发挥作用有待进一步深入研究。
  • 青海省科技项目(2016-zj-936Q)
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doi: 10.14109/j.cnki.xyylc.2024.04.08
  • 接收时间:2022-02-26
  • 首发时间:2026-03-13
  • 出版时间:2024-04-25
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  • 收稿日期:2022-02-26
  • 录用日期:2023-11-27
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青海省科技项目(2016-zj-936Q)
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    青海省第五人民医院 中医科,青海 西宁 810001
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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