Article(id=1199786454458138729, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1199786450628735631, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2024-0040, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1705248000000, receivedDateStr=2024-01-15, revisedDate=1717084800000, revisedDateStr=2024-05-31, acceptedDate=null, acceptedDateStr=null, onlineDate=1763980981696, onlineDateStr=2025-11-24, pubDate=1726070400000, pubDateStr=2024-09-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763980981696, onlineIssueDateStr=2025-11-24, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763980981696, creator=13701087609, updateTime=1763980981696, updator=13701087609, issue=Issue{id=1199786450628735631, tenantId=1146029695717560320, journalId=1189982191388893191, year='2024', volume='59', issue='9', pageStart='2417', pageEnd='2676', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1763980980784, creator=13701087609, updateTime=1764225057364, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1200810182063280632, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1199786450628735631, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1200810182063280633, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1199786450628735631, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=2564, endPage=2573, ext={EN=ArticleExt(id=1199786455494131830, articleId=1199786454458138729, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=Design, synthesis and antidepressant activity of novel genipin derivatives, columnId=null, journalTitle=Acta Pharmaceutica Sinica, columnName=null, runingTitle=null, highlight=null, articleAbstract=

The pathogenesis of depression is complex, and some existing monoamine antidepressants have problems such as drug resistance or off-target failure. Traditional Chinese medicine has the characteristics of "multi-component and multi-target", and has been used in the treatment of depression in clinical practice. Yueju pill is effective in the treatment of depression. Geniposide and ligustrazine, the active ingredients of Gardeniae fructus and Ligusticum sinense 'Chuanxiong', play a key role in the treatment of depression. In this study, based on the neuroprotective activity of genipin and the rapid antidepressant activity of tetramethylpyrazine, a series of novel genipin derivatives were designed and synthesized through pharmacophore assembly principle, and their neuroprotective activity and antidepressant effect were investigated. The results showed that the novel genipin derivatives had well neuroprotective activity on the glutamate-induced HT-22 cell model, with compounds W-1 and W-3 showing better protective activity. In behavioral despair depression (BDD) model mice, compound W-3 was found to have better antidepressant activity than W-1 in tail suspension test and forced swimming test. Further study on the behavior of chronic unpredictable mild stress (CUMS) model mice showed that W-3 could significantly improve the depression-like behavior of model mice. All animal experiments were approved by the Experimental Animal Ethics Committee of Anhui University of Chinese Medicine (approval number: AHUCM-mouse-2022027). The effects of the preferred compound W-3 on protein kinase A (PKA), cAMP response element binding protein (CREB), brain-derived neurotrophic factor (BDNF), 5-hydroxytryptamine 1A (5-HT1A) receptor, N-methyl-D-aspartate ionic glutamate receptor 2A (GluN2A) and N-methyl-D-aspartate ionic glutamate receptor 2B (GluN2B) were analyzed by Western blot. W-3 treatment significantly up-regulated the protein expression of PKA, CREB, BDNF and 5-HT1A, and down-regulated the protein expression of GluN2A and GluN2B. The results of qRT-PCR were consistent with those of Western blot. According to the above results, compound W-3 has a potential antidepressant effect, and its mechanism may be related to the activation of PKA-CREB-BDNF signaling pathway by regulating the expression of GluN2A, GluN2B and 5-HT1A receptor proteins.

, correspAuthors=Yan-chun ZHANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2024 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=Hong-yan CHENG, Dan-hui WANG, Wen-jie ZHAO, Tian-cheng WANG, Wen-xue XU, Cai-yun ZHANG, Ya-nan ZHAO, Yan-chun ZHANG), CN=ArticleExt(id=1199786458509836598, articleId=1199786454458138729, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=新型京尼平衍生物的设计、合成及抗抑郁活性研究, columnId=1190335348896011050, journalTitle=药学学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=

抑郁症发病机制复杂, 现有部分单胺类抗抑郁药物存在耐药或失效脱靶等问题。中药经方具有多成分、多靶点等特点, 在临床中用于治疗抑郁症效果显著。越鞠丸在抑郁症治疗中成效显著, 其中“栀子-川芎”药对发挥了关键的抗抑郁作用, 京尼平苷和川芎嗪分别作为栀子和川芎的有效成分具有良好抗抑郁活性。本研究基于京尼平的神经保护活性及川芎嗪的快速抗抑郁活性, 通过药效团拼合原理将二者进行拼合, 设计合成一系列新型京尼平衍生物, 并进行神经保护活性和抗抑郁作用研究。结果表明, 新型京尼平衍生物在谷氨酸诱导的HT-22细胞模型上具有良好的神经保护活性, 其中化合物W-1和W-3的保护活性较好。在行为绝望抑郁(behavioral despair depression, BDD) 模型小鼠的悬尾实验与强迫游泳实验的研究中发现, 化合物W-3相较于W-1抗抑郁活性更优。进一步对慢性不可预知性温和应激(chronic unpredictable mild stress, CUMS) 模型小鼠的行为学进行研究, 结果显示, W-3可显著改善模型小鼠抑郁样行为, 所有动物实验经安徽中医药大学实验动物伦理委员会批准(批准号: AHUCM-mouse-2022027)。通过蛋白质印迹法分析了优选化合物W-3对蛋白激酶A (protein kinase A, PKA)、cAMP反应元件结合蛋白(cAMP response element binding, CREB)、脑源性神经营养因子(brain-derived neurotrophic factor, BDNF)、5-羟色胺1A (5-hydroxytryptamine 1A, 5-HT1A) 受体以及N-甲基-D-天冬氨酸离子型谷氨酸受体2A (N-methyl-D-aspartate ionic glutamate receptor 2A, GluN2A) 和N-甲基-D-天冬氨酸离子型谷氨酸受体2B (N-methyl-D-aspartate ionic glutamate receptor 2B, GluN2B) 蛋白表达的影响, 检测结果显示, W-3可显著上调PKA、CREB、BDNF和5-HT1A蛋白表达水平, 并下调GluN2A和GluN2B蛋白表达水平; qRT-PCR结果与蛋白质印迹法检测结果一致。根据以上结果推测, 化合物W-3具有潜在的抗抑郁作用, 作用机制可能与调节GluN2A、GluN2B及5-HT1A受体蛋白的表达, 从而激活PKA-CREB-BDNF信号通路有关。

, correspAuthors=张艳春, authorNote=null, correspAuthorsNote=
*张艳春, E-mail:
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Reagents and conditions: (ⅰ) <i>p</i>-TsOH·H<sub>2</sub>O, MeOH/<i>i</i>-PrOH, 80 ℃, 1 h; (ⅱ) CH<sub>3</sub>SO<sub>2</sub>Cl, Et<sub>3</sub>N, CH<sub>2</sub>Cl<sub>2</sub>, 0 ℃, 2 h; (ⅲ) CH<sub>2</sub>Cl<sub>2</sub>, 0 ℃, 6 h; (iv) K<sub>2</sub>CO<sub>3</sub>, DMF, r.t, 4 h; CH<sub>3</sub>OH/HCl (Conc.) , figureFileSmall=x5GMdZWuHXdQ2Xi6rqVqjQ==, figureFileBig=G7GN9kapZOsvYSgv2+nptA==, tableContent=null), ArticleFig(id=1200378859658015041, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199786454458138729, language=EN, label=null, caption=null, figureFileSmall=LFd3DlFx1fF1hj9CJsabXQ==, figureFileBig=0UjgvfW6Xo6TFB6ySP9CZQ==, tableContent=null), ArticleFig(id=1200378859829981517, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199786454458138729, language=CN, label=Figure 3, caption= The effects of novel genipin derivatives on the survival rate of HT-22 cells induced by glutamate. <i>n</i> = 6, <span class="mag-xml-inline-formula"><tex-math id="M1">$ \overline{x} $</tex-math></span> ± <i>s</i>. <sup>& & &</sup> <i>P</i> < 0.001 <i>vs</i> control; <sup>*</sup><i>P</i> < 0.05, <sup>**</sup><i>P</i> < 0.01, <sup>***</sup><i>P</i> < 0.001 <i>vs</i> model; <sup>#</sup><i>P</i> < 0.05, <sup>##</sup><i>P</i> < 0.01, <sup>###</sup><i>P</i> < 0.001 <i>vs</i> Flu; <sup>Δ</sup><i>P</i> < 0.05, <sup>ΔΔ</sup><i>P</i> < 0.01, <sup>ΔΔΔ</sup><i>P</i> < 0.001 <i>vs</i> genipin. Flu: Fluoxetine , figureFileSmall=LFd3DlFx1fF1hj9CJsabXQ==, figureFileBig=0UjgvfW6Xo6TFB6ySP9CZQ==, tableContent=null), ArticleFig(id=1200378859930644820, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199786454458138729, language=EN, label=null, caption=null, figureFileSmall=tqUYmyxpb6U9APeB1vvPzA==, figureFileBig=KjQQD1kzSo/2sAP5GDFT5A==, tableContent=null), ArticleFig(id=1200378860027113820, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199786454458138729, language=CN, label=Figure 4, caption= Effect of W-3 on the duration of TST and FST immobility in BDD model (<i>n</i> = 6, <span class="mag-xml-inline-formula"><tex-math id="M2">$ \overline {x} $</tex-math></span> ± <i>s</i>) and CUMS model (<i>n</i> = 10, <span class="mag-xml-inline-formula"><tex-math id="M3">$ \overline {x} $</tex-math></span> ± <i>s</i>). A: TST in BDD model; B: FST in BDD model; C: TST in CUMS model; D: FST in CUMS model. <sup>&</sup> <i>P</i> < 0.05, <sup>& &</sup> <i>P</i> < 0.01, <sup>& & &</sup> <i>P</i> < 0.001 <i>vs</i> control; <sup>**</sup><i>P</i> < 0.01, <sup>***</sup><i>P</i> < 0.001 <i>vs</i> CUMS model; <sup>###</sup><i>P</i> < 0.001 <i>vs</i> Flu. FST: Forced swim test; TST: Tail suspension test; CUMS: Chronic unpredictable mild stress; BDD: Behavioral despair depression , figureFileSmall=tqUYmyxpb6U9APeB1vvPzA==, figureFileBig=KjQQD1kzSo/2sAP5GDFT5A==, tableContent=null), ArticleFig(id=1200378860127777120, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199786454458138729, language=EN, label=null, caption=null, figureFileSmall=IijxXz/jOo8K3ovR/yHmDg==, figureFileBig=BABb0D1uSSgUadHADQ5muw==, tableContent=null), ArticleFig(id=1200378860241023333, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199786454458138729, language=CN, label=Figure 5, caption= Effect of compound W-3 on the rate of sugar-water preference in CUMS model. <i>n</i> = 10, <span class="mag-xml-inline-formula"><tex-math id="M4">$ \overline{x} $</tex-math></span> ± <i>s</i>. <sup>& & &</sup> <i>P</i> < 0.001 <i>vs</i> control; <sup>***</sup><i>P</i> < 0.001 <i>vs</i> CUMS model; <sup>#</sup><i>P</i> < 0.05, <sup>###</sup><i>P</i> < 0.001 <i>vs</i> Flu , figureFileSmall=IijxXz/jOo8K3ovR/yHmDg==, figureFileBig=BABb0D1uSSgUadHADQ5muw==, tableContent=null), ArticleFig(id=1200378860366852460, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199786454458138729, language=EN, label=null, caption=null, figureFileSmall=z1QCmD8IiyZCkfdlXYuulQ==, figureFileBig=WRiuBQaDlGYXa03+v9sy8g==, tableContent=null), ArticleFig(id=1200378860488487283, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199786454458138729, language=CN, label=Figure 6, caption= Effects of W-3 on spontaneous activity in CUMS model. A: Representative map of open field route; B: Total distance and average speed of mice movement. <i>n</i> = 10, <span class="mag-xml-inline-formula"><tex-math id="M5">$ \overline{x} $</tex-math></span> ± <i>s</i>. <sup>& & &</sup> <i>P</i> < 0.001 <i>vs</i> control; <sup>*</sup><i>P</i> < 0.05, <sup>**</sup><i>P</i> < 0.01, <sup>***</sup><i>P</i> < 0.001 <i>vs</i> CUMS model; <sup>#</sup><i>P</i> < 0.05, <sup>##</sup><i>P</i> < 0.01 <i>vs</i> Flu , figureFileSmall=z1QCmD8IiyZCkfdlXYuulQ==, figureFileBig=WRiuBQaDlGYXa03+v9sy8g==, tableContent=null), ArticleFig(id=1200378860622705017, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199786454458138729, language=EN, label=null, caption=null, figureFileSmall=0wuXWx3x3ryuVyehPVOo9g==, figureFileBig=TCBKQcjx5FICVF3DFHaX7Q==, tableContent=null), ArticleFig(id=1200378860769505662, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199786454458138729, language=CN, label=Figure 7, caption= Effect of W-3 on PKA-CREB-BDNF signaling pathway (A-E). <i>n</i> = 3, <span class="mag-xml-inline-formula"><tex-math id="M6">$ \overline{x} $</tex-math></span> ± <i>s</i>. <sup>& &</sup> <i>P</i> < 0.01, <sup>& & &</sup> <i>P</i> < 0.001 <i>vs</i> control; <sup>*</sup><i>P</i> < 0.05, <sup>**</sup><i>P</i> < 0.01 <i>vs</i> CUMS model; <sup>#</sup><i>P</i> < 0.05 <i>vs</i> Flu. PKA: Protein kinase A; BDNF: Brain-derived neurotrophic factor; CREB: Cyclic-AMP response binding protein; p-CREB: Phospho cyclic-AMP response binding protein; GAPDH: Glyceraldehyde-3-phosphate dehydrogenase , figureFileSmall=0wuXWx3x3ryuVyehPVOo9g==, figureFileBig=TCBKQcjx5FICVF3DFHaX7Q==, tableContent=null), ArticleFig(id=1200378860891140487, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199786454458138729, language=EN, label=null, caption=null, figureFileSmall=klMXjGvPmnV8xkQA4tMPgg==, figureFileBig=T89LeS6myfo5zNasBmJRrw==, tableContent=null), ArticleFig(id=1200378861016969612, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199786454458138729, language=CN, label=Figure 8, caption= Effect of W-3 on receptor proteins in brain (A-D). <i>n</i> = 3, <span class="mag-xml-inline-formula"><tex-math id="M7">$ \overline{x} $</tex-math></span> ± <i>s</i>. <sup>& &</sup> <i>P</i> < 0.01, <sup>& & &</sup> <i>P</i> < 0.001 <i>vs</i> control; <sup>*</sup><i>P</i> < 0.05, <sup>**</sup><i>P</i> < 0.01 <i>vs</i> CUMS model; <sup>#</sup><i>P</i> < 0.05 <i>vs</i> Flu. 5-HT<sub>1A</sub>: 5-Hydroxytryptamine 1A; GluN2A: <i>N</i>-Methyl-<i>D</i>-aspartate receptor 2A; GluN2B: <i>N</i>-Methyl-<i>D</i>-aspartate receptor 2B , figureFileSmall=klMXjGvPmnV8xkQA4tMPgg==, figureFileBig=T89LeS6myfo5zNasBmJRrw==, tableContent=null), ArticleFig(id=1200378861117632914, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199786454458138729, language=EN, label=null, caption=null, figureFileSmall=Be5fLyMLb/VwfLnUiPmmoA==, figureFileBig=hfHN/8Dh3zdDciMUrFbSiw==, tableContent=null), ArticleFig(id=1200378861214101910, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199786454458138729, language=CN, label=Figure 9, caption= Effect of W-3 on the mRNA levels of <i>CREB</i>, <i>PKA</i>, <i>BDNF</i>, <i>5-HT</i><sub><i>1A</i></sub>, <i>GluN2A</i> and <i>GluN2B</i>. <i>n</i> = 3, <span class="mag-xml-inline-formula"><tex-math id="M8">$ \overline{x} $</tex-math></span> ± <i>s</i>. <sup>& & &</sup> <i>P</i> < 0.001 <i>vs</i> control; <sup>***</sup><i>P</i> < 0.001 <i>vs</i> CUMS model; <sup>#</sup><i>P</i> < 0.05, <sup>##</sup><i>P</i> < 0.01, <sup>###</sup><i>P</i> < 0.001 <i>vs</i> Flu , figureFileSmall=Be5fLyMLb/VwfLnUiPmmoA==, figureFileBig=hfHN/8Dh3zdDciMUrFbSiw==, tableContent=null), ArticleFig(id=1200378861386068382, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199786454458138729, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
Gene Forward primer (5'→3') Reverse primer (5'→3')
β-actin AGTGTGACGTTGACATCCGT TGCTAGGAGCCAGAGCAGTA
CREB GTGAAGATGGCCGAGAACTT CAGCTCATCAGGAAGGTCAT
BDNF TTACTCTCCTGGGTTCCTGA ACGTCCACTTCTGTTTCCTT
PKA CTTCCTGTTCCCACCCTATC AAATCTTCCTTGGCTTTGGC
5-HT1A CTTTCCAATGTCTGCACCTG ACCAGCAACTTTGGCAATTT
GluN2A TGACTATTCTCCGCCTTTCC CGTCCAACTTCCCAGTTTTC
GluN2B CCTCCTGTGTGAGAGGAAAG GTAGAGGAGTCTCTGTGTGG
), ArticleFig(id=1200378861553840549, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199786454458138729, language=CN, label=Table 1, caption=

Sequences of primers

, figureFileSmall=null, figureFileBig=null, tableContent=
Gene Forward primer (5'→3') Reverse primer (5'→3')
β-actin AGTGTGACGTTGACATCCGT TGCTAGGAGCCAGAGCAGTA
CREB GTGAAGATGGCCGAGAACTT CAGCTCATCAGGAAGGTCAT
BDNF TTACTCTCCTGGGTTCCTGA ACGTCCACTTCTGTTTCCTT
PKA CTTCCTGTTCCCACCCTATC AAATCTTCCTTGGCTTTGGC
5-HT1A CTTTCCAATGTCTGCACCTG ACCAGCAACTTTGGCAATTT
GluN2A TGACTATTCTCCGCCTTTCC CGTCCAACTTCCCAGTTTTC
GluN2B CCTCCTGTGTGAGAGGAAAG GTAGAGGAGTCTCTGTGTGG
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新型京尼平衍生物的设计、合成及抗抑郁活性研究
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程红艳 1 , 王丹慧 1 , 赵文杰 1 , 王天城 1 , 许文雪 1 , 张彩云 1, 2 , 赵亚男 3 , 张艳春 1, 2, *
药学学报 | 研究论文 2024,59(9): 2564-2573
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药学学报 | 研究论文 2024, 59(9): 2564-2573
新型京尼平衍生物的设计、合成及抗抑郁活性研究
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程红艳1, 王丹慧1, 赵文杰1, 王天城1, 许文雪1, 张彩云1, 2, 赵亚男3, 张艳春1, 2, *
作者信息
  • 1.安徽中医药大学药学院, 安徽 合肥 230012
  • 2.安徽省中药研究与开发重点实验室, 安徽 合肥 230012
  • 3.中国科学院合肥肿瘤医院药学中心, 安徽 合肥 230012

通讯作者:

*张艳春, E-mail:
Design, synthesis and antidepressant activity of novel genipin derivatives
Hong-yan CHENG1, Dan-hui WANG1, Wen-jie ZHAO1, Tian-cheng WANG1, Wen-xue XU1, Cai-yun ZHANG1, 2, Ya-nan ZHAO3, Yan-chun ZHANG1, 2, *
Affiliations
  • 1. College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
  • 2. Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei 230012, China
  • 3. Pharmacy Center, Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei 230012, China
出版时间: 2024-09-12 doi: 10.16438/j.0513-4870.2024-0040
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抑郁症发病机制复杂, 现有部分单胺类抗抑郁药物存在耐药或失效脱靶等问题。中药经方具有多成分、多靶点等特点, 在临床中用于治疗抑郁症效果显著。越鞠丸在抑郁症治疗中成效显著, 其中“栀子-川芎”药对发挥了关键的抗抑郁作用, 京尼平苷和川芎嗪分别作为栀子和川芎的有效成分具有良好抗抑郁活性。本研究基于京尼平的神经保护活性及川芎嗪的快速抗抑郁活性, 通过药效团拼合原理将二者进行拼合, 设计合成一系列新型京尼平衍生物, 并进行神经保护活性和抗抑郁作用研究。结果表明, 新型京尼平衍生物在谷氨酸诱导的HT-22细胞模型上具有良好的神经保护活性, 其中化合物W-1和W-3的保护活性较好。在行为绝望抑郁(behavioral despair depression, BDD) 模型小鼠的悬尾实验与强迫游泳实验的研究中发现, 化合物W-3相较于W-1抗抑郁活性更优。进一步对慢性不可预知性温和应激(chronic unpredictable mild stress, CUMS) 模型小鼠的行为学进行研究, 结果显示, W-3可显著改善模型小鼠抑郁样行为, 所有动物实验经安徽中医药大学实验动物伦理委员会批准(批准号: AHUCM-mouse-2022027)。通过蛋白质印迹法分析了优选化合物W-3对蛋白激酶A (protein kinase A, PKA)、cAMP反应元件结合蛋白(cAMP response element binding, CREB)、脑源性神经营养因子(brain-derived neurotrophic factor, BDNF)、5-羟色胺1A (5-hydroxytryptamine 1A, 5-HT1A) 受体以及N-甲基-D-天冬氨酸离子型谷氨酸受体2A (N-methyl-D-aspartate ionic glutamate receptor 2A, GluN2A) 和N-甲基-D-天冬氨酸离子型谷氨酸受体2B (N-methyl-D-aspartate ionic glutamate receptor 2B, GluN2B) 蛋白表达的影响, 检测结果显示, W-3可显著上调PKA、CREB、BDNF和5-HT1A蛋白表达水平, 并下调GluN2A和GluN2B蛋白表达水平; qRT-PCR结果与蛋白质印迹法检测结果一致。根据以上结果推测, 化合物W-3具有潜在的抗抑郁作用, 作用机制可能与调节GluN2A、GluN2B及5-HT1A受体蛋白的表达, 从而激活PKA-CREB-BDNF信号通路有关。

新型京尼平衍生物  /  药物设计  /  抗抑郁活性  /  作用机制

The pathogenesis of depression is complex, and some existing monoamine antidepressants have problems such as drug resistance or off-target failure. Traditional Chinese medicine has the characteristics of "multi-component and multi-target", and has been used in the treatment of depression in clinical practice. Yueju pill is effective in the treatment of depression. Geniposide and ligustrazine, the active ingredients of Gardeniae fructus and Ligusticum sinense 'Chuanxiong', play a key role in the treatment of depression. In this study, based on the neuroprotective activity of genipin and the rapid antidepressant activity of tetramethylpyrazine, a series of novel genipin derivatives were designed and synthesized through pharmacophore assembly principle, and their neuroprotective activity and antidepressant effect were investigated. The results showed that the novel genipin derivatives had well neuroprotective activity on the glutamate-induced HT-22 cell model, with compounds W-1 and W-3 showing better protective activity. In behavioral despair depression (BDD) model mice, compound W-3 was found to have better antidepressant activity than W-1 in tail suspension test and forced swimming test. Further study on the behavior of chronic unpredictable mild stress (CUMS) model mice showed that W-3 could significantly improve the depression-like behavior of model mice. All animal experiments were approved by the Experimental Animal Ethics Committee of Anhui University of Chinese Medicine (approval number: AHUCM-mouse-2022027). The effects of the preferred compound W-3 on protein kinase A (PKA), cAMP response element binding protein (CREB), brain-derived neurotrophic factor (BDNF), 5-hydroxytryptamine 1A (5-HT1A) receptor, N-methyl-D-aspartate ionic glutamate receptor 2A (GluN2A) and N-methyl-D-aspartate ionic glutamate receptor 2B (GluN2B) were analyzed by Western blot. W-3 treatment significantly up-regulated the protein expression of PKA, CREB, BDNF and 5-HT1A, and down-regulated the protein expression of GluN2A and GluN2B. The results of qRT-PCR were consistent with those of Western blot. According to the above results, compound W-3 has a potential antidepressant effect, and its mechanism may be related to the activation of PKA-CREB-BDNF signaling pathway by regulating the expression of GluN2A, GluN2B and 5-HT1A receptor proteins.

novel genipin derivative  /  drug design  /  antidepressant activity  /  mechanism of action
程红艳, 王丹慧, 赵文杰, 王天城, 许文雪, 张彩云, 赵亚男, 张艳春. 新型京尼平衍生物的设计、合成及抗抑郁活性研究. 药学学报, 2024 , 59 (9) : 2564 -2573 . DOI: 10.16438/j.0513-4870.2024-0040
Hong-yan CHENG, Dan-hui WANG, Wen-jie ZHAO, Tian-cheng WANG, Wen-xue XU, Cai-yun ZHANG, Ya-nan ZHAO, Yan-chun ZHANG. Design, synthesis and antidepressant activity of novel genipin derivatives[J]. Acta Pharmaceutica Sinica, 2024 , 59 (9) : 2564 -2573 . DOI: 10.16438/j.0513-4870.2024-0040
抑郁症是一种常见的情绪障碍, 复发率高, 主要表现为持续性抑郁、记忆力减退和睡眠障碍[1]。抑郁症的发病机制复杂, 现有研究主要集中在单胺递质假说, 认为中枢神经系统5-羟色胺(5-hydroxytryptamine, 5-HT)、去甲肾上腺素(noradrenaline, NE/NA) 和多巴胺(dopamine, DA) 水平的降低是抑郁症发生发展的主要原因[2]。目前临床一线抗抑郁药物主要是基于经典单胺策略开发的, 但这些药物普遍存在起效时间迟缓(2~6周), 对部分难治性抑郁症疗效不佳甚至无效, 临床应用效果不理想等缺陷[3]
中药因其多途径、多成分、多靶点及不良反应小等特点在抑郁症的治疗中取得显著的疗效, 并且相对于西医治疗而言, 中医以其整体观念和辨证论治特点在抑郁症治疗方面具有很大的优势[4]。逍遥散、栀子厚朴汤、开心散、越鞠丸等抗抑郁经方, 在临床中用于治疗产后抑郁、脑卒中后抑郁等疗效显著[5-7]。其中越鞠丸具有确切的快速抗抑郁作用, 方中“栀子-川芎”组合是越鞠丸发挥抗抑郁作用的关键药对[8-10]。其中, 环烯醚萜类化合物京尼平苷(又称栀子苷, geniposide) 作为栀子中发挥抗抑郁活性的主要成分[11], 可能通过激活蛋白激酶A (protein kinase A, PKA)-cAMP反应元件结合蛋白(cyclic-AMP response binding protein, CREB)-脑源性神经营养因子(brain-derived neurotrophic factor, BDNF) 信号通路和激活5-HT1A受体发挥快速抗抑郁作用[12]。京尼平作为栀子主要药效成分京尼平苷的苷元, 可通过减少谷氨酸的含量, 降低N-甲基-D-天冬氨酸受体(N-methyl-D-aspartic acid receptor, NMDAR) 过度激活引起的神经兴奋毒性作用, 增强海马组织中神经元的活性, 从而修复和改善神经元的功能以及改善抑郁症组织中糖和能量的代谢异常, 进而发挥抗抑郁作用[13, 14]。川芎嗪作为川芎的主要活性成分之一, 可能通过调节BDNF发挥神经保护作用, 提高抗抑郁活性[15, 16]。同时, 川芎嗪与京尼平的联用可发挥协同增效的作用[17, 18]。因此, 本课题组为获得作用于非单胺类物质发挥抗抑郁作用的化合物, 结合栀子-川芎的结构优势与药理活性, 设计合成了一类新型抗抑郁化合物。
前期, 课题组基于京尼平在神经系统中的重要作用, 设计合成了一系列新型化合物, 具有一定的神经保护活性[19]。本研究基于栀子苷与川芎嗪潜在的抗抑郁活性, 利用药效团拼合原理, 以哌嗪作为连接基团, 将京尼平与川芎嗪进行拼合(图 1), 以期获得一类具有抗抑郁活性的新型化合物(图 2)。
目标化合物W-3采取合成路线1中所示的合成方法, 以京尼平为起始原料, 将京尼平的半缩醛结构修饰为缩醛结构, 再与甲磺酰氯反应得到中间体化合物。在碳酸钾为缚酸剂、二甲基甲酰胺(N, N-dimethylformamide, DMF) 为溶剂的条件下, 用不同取代基的苄哌嗪取代中间体化合物, 通过浓盐酸调节pH得到化合物W-3。
选用小鼠海马神经元HT-22细胞对目标化合物W-1~W-8进行体外神经保护活性考察, 通过CCK-8法筛选出谷氨酸最佳造模浓度为5 mmol·L-1、作用时间为24 h, 活性保护结果如图 3所示。
在化合物神经保护活性实验中, 与正常组比较, 模型组HT-22细胞存活率显著降低(P < 0.001); 与模型组比较, 化合物W-1~W-8各浓度给药组HT-22细胞存活率显著提高(P < 0.05)。从图 3中可以看出W-1和W-5细胞存活率高于W-4和W-8, 其中W-1和W-5的C-1位羟基被甲基取代, 推测化合物C-1位羟基以甲基取代活性优于异丙基取代。化合物W-1和W-3在各给药浓度对细胞的保护作用均明显优于京尼平(P < 0.05), 且W-3在10 μmol·L-1时对谷氨酸诱导的小鼠海马神经元HT-22细胞损伤模型中细胞的存活率(75.06% ± 1.12%) 与阳性对照氟西汀(fluoxetine, Flu) 的细胞存活率(74.84% ± 0.92%) 相当, 明显高于对照药京尼平的细胞存活率(57.03% ± 1.26%) (图 3)。对比W-3与其他化合物结构特征发现, 其左侧为川芎嗪结构, 推测左侧芳环以川芎嗪结构更换苯环结构能够提高化合物对HT-22的神经保护作用。通过初步的神经细胞保护实验筛选, 最终选择活性较好的化合物W-1和W-3进行抑郁模型小鼠的行为学研究。
在行为绝望抑郁症(behavioral despair depression, BDD) 模型小鼠强迫游泳实验(forced swimming test, FST) 和悬尾实验(tail suspension test, TST) 中, 与正常组相比, 各给药组小鼠静止不动时间显著减少(P < 0.05)。且化合物W-3高剂量组在两种实验中小鼠静止时间与阳性药Flu组相近(图 4AB)。在实验过程中, 化合物W-1高剂量组小鼠出现死亡, 于是将化合物W-1给药组剂量调整为1和0.1 mg·kg-1。BDD模型是一种抗抑郁药物快速筛选的模型, 初步筛选结果显示化合物W-3比化合物W-1具有更好的抗抑郁活性, 因此选择化合物W-3在慢性不可预知性温和应激(chronic unpredictable mild stress, CUMS) 模型小鼠中进行抗抑郁作用机制研究。
在CUMS模型小鼠的TST和FST中, 化合物W-3给药组的小鼠静止不动时间呈剂量依赖性减少, 且高剂量组(10 mg·kg-1) 的治疗效果与阳性药Flu组(20 mg·kg-1) 相当, 与BDD模型小鼠结果一致(图 4CD)。28天CUMS建模后, 与正常组相比, CUMS模型组小鼠的糖水偏爱率明显降低(P < 0.001), 提示CUMS模型建立成功; 与模型组相比, W-3中、高剂量给药组小鼠糖水偏爱率显著提高(P < 0.001) (图 5)。在旷场实验(open field test, OFT) 中, 与正常组相比, CUMS模型组小鼠的移动总距离和移动平均速度明显减少(P < 0.001), 阳性药Flu组与化合物W-3高剂量组小鼠的活动范围相似, 社交区域周围均有较多活动轨迹(图 6)。
在糖水偏好实验与OFT中, W-3低剂量组(0.1 mg·kg-1) 对模型小鼠抑郁样行为的改善作用与模型组相比无显著性差异, 推测低剂量组可能未对模型小鼠发挥抗抑郁作用, 故选择W-3中剂量组(1 mg·kg-1) 和高剂量组(10 mg·kg-1) 进行蛋白水平及基因水平分析。
与正常组相比, CUMS模型组小鼠脑中PKA、pCREB、CREB、BDNF和5-HT1A受体蛋白表达水平显著下调, N-甲基-D-天冬氨酸离子型谷氨酸受体2A (N-methyl-D-aspartate receptor 2A, GluN2A) 和N-甲基-D-天冬氨酸离子型谷氨酸受体2B (N-methyl-D-aspartate receptor 2B, GluN2B) 受体蛋白表达水平显著升高。与模型组比较, 化合物W-3给药组逆转了上述蛋白的表达情况, 且呈剂量依赖性, W-3高剂量给药组对蛋白表达的影响与阳性药Flu相当, 无显著性差异(图 78)。与正常组比较, CUMS模型组大鼠PKACREBBDNF5-HT1A mRNA表达水平显著降低(P < 0.01), GluN2AGluN2B mRNA表达水平显著升高。与模型组比较, 化合物W-3给药组呈剂量依赖性方式显著逆转上述蛋白mRNA表达水平。qRT-PCR结果与Western blot结果一致(图 9)。
传统抗抑郁药物主要以增强中枢单胺神经递质系统功能为主, 随着人们对快速抗抑郁药物神经机制的研究, 谷氨酸日益成为抗抑郁药物研究新的关注点。谷氨酸的过度释放或者其NMDA受体的过度激活都会引起神经元毒性, 并导致神经退行性变化, 是抑郁症发生的重要原因[20]。现有研究表明, 抑郁症患者血清中谷氨酸水平与抑郁症严重程度呈正相关[21]。患者中枢谷氨酸受体及转运蛋白的异常, 可能介导了谷氨酸快速兴奋性突触传递和代谢异常, 进而诱发抑郁疾病的发作[22]。本研究对谷氨酸诱导HT-22细胞建立的神经损伤模型进行研究, 结果表明, 目标化合物均有一定的神经保护活性, 其中W-1和W-3保护活性相对最优, 有进一步研究的价值。
研究表明, 海马中谷氨酸含量适度增加, 可能通过激活NMDA受体的GluN2A和GluN2B两种亚型, 介导海马神经元的损伤及神经细胞凋亡, 诱导抑郁的发生和发展[23, 24]。通过抑制NMDA受体的表达可逆转该受体过度激活引起的CREB-BDNF信号通路抑制作用, 恢复神经可塑性调节[25]。BDNF作为脑中一种重要的神经营养因子, 具有广泛的神经保护和再生作用, 是抑郁症发病与治疗的重要标志蛋白[26]。现有抗抑郁药物大都通过调控PKA-CREB信号通路进而调控BDNF表达水平来发挥抗抑郁活性[27, 28]。研究表明, 激活PKA-CREB-BDNF信号通路可发挥神经保护作用, 从而产生抗抑郁活性[29, 30]。因此, 本研究对NMDA受体的两种亚型GluN2A和GluN2B以及PKA、BDNF和CREB蛋白表达情况进行了分析, 结果发现化合物W-3可通过抑制GluN2A和GluN2B蛋白的表达水平, 从而激活PKA-CREB-BDNF信号通路, 发挥抗抑郁作用。
研究发现, 调节情绪和记忆的脑区中的5-HT1A受体活性或表达发生变化可导致5-HT系统的功能下降, 提高该受体的表达或增强其活性可发挥抗抑郁作用[31]。本研究发现, W-3给药组小鼠脑中5-HT1A受体表达水平有所升高, 表明该化合物也可通过激活5-HT1A受体发挥抗抑郁作用。
W-3能够显著缓解CUMS模型小鼠抑郁样行为, 其机制可能与激活PKA-CREB-BDNF信号通路有关, 通过调控5-HT1A、GluN2A和GluN2B受体靶蛋白表达水平发挥潜在的抗抑郁作用。因此, 化合物W-3可能是一种抑郁症治疗和神经系统保护化合物。本课题从中药活性成分中寻找有效的抗抑郁活性小分子, 并对其结构进行修饰与改造, 这一设计思路为后期治疗抑郁症化合物的研究提供参考。
小鼠海马神经元HT-22细胞系购自中国科学院上海细胞生物学研究所。8~9周龄雄性ICR小鼠(SPF, 20~25 g) 购自安徽医科大学, 动物许可证号: SCXK (安徽)-2017-001。5~6周龄雄性C57BL/6J小鼠(SPF, 20~25 g), 由江苏集萃药康生物科技股份有限公司提供, 动物使用许可证号: SCXK (SU) 2018-0008。实验前, 将小鼠置于温度25 ℃、湿度50%~60%、12 h明暗循环的环境中适应性饲养1周。实验过程中可自由获得水和饲料, 所有实验程序均通过安徽中医药大学实验动物伦理委员会批准(伦理批准号: AHUCM-mouse-2022027)。
熔点在开放的毛细管中测定, 并且没有校正。在Bruker 400 (Brucker, 瑞士) 上测量1H NMR和13C NMR光谱, 并且相对于四甲基硅烷, 所有化学位移以ppm为单位, 质谱由AB-SCIEX-X500R质谱仪测定。实验所需化学试剂购自上海阿拉丁、麦克林、润捷和江苏强盛等常规供应商, 所有溶剂均为市售化学纯或分析纯, 无特殊说明, 一般不经纯化处理直接使用。
胎牛血清(安徽康源生物技术有限责任公司, 20221213); DMEM培养基(赛默飞世尔科技公司, 8122638); PBS缓冲液和CCK-8试剂盒(北京兰杰柯科技有限公司, 22282121和01100088); 胰酶细胞消化液(上海碧云天生物科技有限公司, 122022230225); CREB抗体、BDNF抗体和pCREB抗体(英国Abcam公司, GR3102561-9、GR3105124-2和GR3012040-15); GAPDH抗体、山羊抗小鼠IgG和山羊抗兔IgG (北京中杉金桥生物技术有限公司, 210040421、236000213和234750414); PKA抗体、5-HT1A抗体、GluN2A抗体和GluN2B抗体(北京博奥森生物技术有限公司, AF19210562、AD08246150、AF19210516和AG08450014); ECL超敏发光试剂盒(北京兰杰柯科技有限公司, 23158476); 反转录试剂盒(北京宝日医生物技术有限公司, AM62082A)。
取100 mL干燥的单口烧瓶, 依次加入京尼平(1.0 g, 4.42 mmol)、对甲苯磺酸-水合物(1.0 g, 5.30 mmol)、乙醇(7.74 mL, 132.33 mmol), 80 ℃下反应1 h后, TLC检测(石油醚∶乙酸乙酯= 1∶1) 原料基本反应完全, 加水10 mL, 二氯甲烷(2 × 30 mL) 萃取, 合并有机相, 饱和氯化钠溶液(3 × 30 mL) 洗涤, 无水硫酸钠干燥, 浓缩, 经硅胶柱分离(石油醚∶乙酸乙酯= 4∶1) 得淡黄色油状物1.5 g, 产率80%。
取100 mL干燥的单口烧瓶, 依次加入1-乙氧基-7-(羟甲基)-1,4a,5,7a-四氢环戊烷[c]吡喃-4-羧酸甲酯(0.9 g, 3.54 mmol)、二氯甲烷15 mL、三乙胺(5.3 g, 5.31 mmol), 冰浴条件下缓慢滴加甲磺酰氯(4.2 g, 3.72 mmol), 冰浴条件下继续反应2 h, TLC检测(石油醚∶乙酸乙酯= 1∶1) 原料基本反应完全。向反应液中加入10%稀盐酸进行洗涤(3 × 20 mL), 无水硫酸钠干燥, 浓缩得淡黄色油状物1.2 g, 产率75%。
在250 mL单口烧瓶中依次加入哌嗪(8.8 g, 10.26 mmol)、二氯甲烷28 mL, 0 ℃条件下缓慢滴加2-(氯甲基)-3, 5, 6-三甲基吡嗪(5.0 g, 2.93 mmol) 的二氯甲烷溶液, 在冰浴条件下继续反应6 h, TLC检测(石油醚∶乙酸乙酯= 1∶1) 原料基本反应完全, 水洗(4 × 50 mL), 饱和氯化钠溶液(2 × 30 mL) 洗涤, 无水硫酸钠干燥, 浓缩得淡黄色油状物1.6 g, 产率77%。
在250 mL单口烧瓶中依次加入甲基1-乙氧基-7-((甲基磺酰基)氧基)-1,4a,5,7a-四氢环戊基[c]吡喃-4-羧酸甲酯(1.5 g, 4.3 mmol)、2,3,5-三甲基-6-(哌嗪-1-基甲基)吡嗪(1.6 g, 8.4 mmol)、碳酸钾(1.2 g, 8.7 mmol)、DMF 20 mL, 常温反应4 h, TLC检测(石油醚∶乙酸乙酯= 1∶1) 原料基本反应完全, 加水10 mL, 二氯甲烷(2 × 30 mL) 萃取, 合并有机相, 饱和氯化钠溶液(3 × 30 mL) 洗涤, 无水硫酸钠干燥, 浓缩, 经硅胶柱分离(石油醚∶乙酸乙酯= 5∶1) 得油状物, 加5 mL甲醇溶解, 浓盐酸调pH 2, 冷冻, 析晶, 过滤, 滤饼干燥得1.0 g白色固体, 产率58%, m.p. 273.8~274.9 ℃。1H NMR (300 MHz, CDCl3) δ 7.52 (s, 1H), 5.74 (s, 1H), 4.71 (d, J = 7.3 Hz, 1H), 3.75 (s, 4H), 3.63 (d, J = 7.1 Hz, 3H), 3.19 (q, J = 8.5, 8.1 Hz, 2H), 3.04 (d, J = 14.2 Hz, 1H), 2.85 (m, J = 15.6, 9.1 Hz, 1H), 2.71~2.63 (m, 2H), 2.60 (s, 8H), 2.52 (s, 9H), 1.26 (d, J = 7.1 Hz, 3H); 13C NMR (101 MHz, CDCl3) δ 168.01, 152.31, 149.87, 149.47, 148.03, 129.52, 110.95, 101.29, 65.21, 61.76, 57.93, 53.22, 51.14, 46.60, 38.78, 35.11, 21.55, 21.45, 20.97, 15.13. ESI-HR-MS m/z: calcd. for C25H36N4O4 [M+H]+ 457.280 9, found 457.280 4。
HT-22细胞以2×104的密度接种于96孔板中, 设空白对照组、正常对照组和药物组。药物组在不同时间(6、12、24和48 h) 加入不同浓度的谷氨酸, 对应时间点每孔加入10 μL CCK-8溶液, 37 ℃恒温培养箱中孵育2 h后, 在450 nm波长下测定吸光度(optical density, OD) 值。
将细胞同前接种于96孔板, 分为对照组、模型组(谷氨酸5 mmol·L-1)、谷氨酸诱导W-3、Flu和京尼平给药组(0.1、1和10 μmol·L-1)。处理24 h后, 采用CCK-8法测定OD值, 按公式(1) 计算细胞存活率。
$存活率/\% = \frac{\left(\mathrm{实}\mathrm{验}\mathrm{组}\mathrm{O}\mathrm{D}\mathrm{值}-\mathrm{空}\mathrm{白}\mathrm{对}\mathrm{照}\mathrm{组}\mathrm{O}\mathrm{D}\mathrm{值}\right)}{\left(\mathrm{对}\mathrm{照}\mathrm{组}\mathrm{O}\mathrm{D}\mathrm{值}-\mathrm{空}\mathrm{白}\mathrm{对}\mathrm{照}\mathrm{组}\mathrm{O}\mathrm{D}\mathrm{值}\right)}\times 100\mathrm{\%} $
绝望行为抑郁症动物模型是筛选抗抑郁药的药理学检测模型[32]。小鼠适应性喂养7天后, 随机分为8组: 正常组、Flu (20 mg·kg-1) 组、W-1 (0.1、1和10 mg·kg-1) 组、W-3 (0.1、1和10 mg·kg-1) 组。给药组小鼠给予0.1 mL·20 g-1腹腔注射, 正常组给予等体积生理盐水。腹腔注射1 h后, 对小鼠进行悬尾实验和强迫游泳实验, 记录小鼠静止不动时间(s)。
在Willner法[33]基础上对CUMS建模方法进行改进。C57BL/6J小鼠暴露于不可预测的温和应激连续28天。应激因素包括禁食、夹尾、冰水游泳、湿笼、拥挤、夜间光照等。适应性喂养7天后, 将小鼠随机分为正常组(给予等量生理盐水)、CUMS组、W-3 (0.1、1和10 mg·kg-1) 组和Flu (20 mg·kg-1) 组。小鼠单次腹腔注射5 μL·g-1, 正常组和CUMS组给予等体积生理盐水。经过应激至3周末开始给药, 给药同时每天持续进行应激, 持续到5周末结束给药, 之后进行行为学指标检测。
采用FST和TST作为行为绝望试验评估化合物W-3的抗抑郁活性。小鼠悬尾实验操作参照Lucien Steru的方法加以改进[34]。强迫游泳实验操作参照Porsolt的方法加以改进[35]。采用实验室自制强迫游泳玻璃桶, 每组实验小鼠在强迫游泳前24 h分别进行15 min游泳训练, 24 h后分别腹腔注射给予各组小鼠相应药物, 1 h后放入桶内进行强迫游泳, 统计小鼠悬挂后和放入桶内前6 min内后4 min的累计不动时间。
糖水偏好实验被用来检测抑郁症的核心症状快感缺失行为, 以评估实验动物的抑郁程度, 并且作为检验CUMS模型建立成功的评判标准[36]。在实验正式开始前, 进行三天训练。第四天小鼠单独饲养, 给予一瓶蒸馏水、一瓶1%的蔗糖溶液和饲料。4 h后, 按公式(2) 计算糖水偏好率。
$糖水偏好率/\% = \frac{\mathrm{糖}\mathrm{水}\mathrm{消}\mathrm{耗}\mathrm{量}}{\left(\mathrm{糖}\mathrm{水}\mathrm{消}\mathrm{耗}\mathrm{量}+\mathrm{水}\mathrm{消}\mathrm{耗}\mathrm{量}\right)}\times 100\mathrm{\%}$
将小鼠放置在测试房间中适应10 min, 之后放入旷场立体室的中央位置, 由系统录像设备记录小鼠自由移动5 min的轨迹, 并对其分析得出5 min内小鼠活动的总路程和平均速度。
行为学实验结束后, 立即按0.3%戊巴比妥钠50 mg·kg-1的标准对各组实验小鼠进行腹腔注射麻醉。眼眶静脉丛采血, 血液采集后立即取出小鼠的脑组织, 置于EP管并储存于液氮罐中。
将小鼠脑组织与RIPA缓冲液(RIPA裂解液∶PMSF = 100∶1) 混合匀浆, 冰上充分裂解, 细胞直接加入RIPA缓冲裂解液于冰上裂解。BCA试剂盒检测蛋白浓度。将等量的样品进行SDS-PAGE并转移到PVDF膜上。室温下用5%脱脂牛奶封闭膜2 h, TBST清洗3遍后于4 ℃下与一抗孵育过夜。孵育完成后TBST清洗3遍并在室温下与相应的二抗孵育1.2 h。然后用超敏化学发光液显影, Image J软件分析条带的光密度值。
采用qRT-PCR技术检测小鼠脑组织中BDNFCREBPKA5-HT1AGluN2AGluN2B的mRNA表达水平。实验中所选引物序列见表 1, 引物由通用生物(安徽) 股份有限公司合成, cDNA进行聚合酶链式反应, 反应以β-actin为内标参照物, 目的基因的相对表达量用RQ = 2-△△CT法计算。
PCR反应体系: 2 × SYBR Green mixture 5 μL, 正、反向游引物(10 μmol·L-1) 各1 μL, cDNA模板1 μL, 用灭菌水补足至总体积10 μL。
PCR反应参数: 95 ℃预变性1 min, 1次循环; 95 ℃变性20 s; 60 ℃退火1 min, 共计40次循环。
所有实验至少进行了三次重复, 使用Graphpad Prism 6等软件对实验结果进行统计分析, 结果以均数±标准差($ \overline {x} $ ± s) 表示, 两组间均数比较采用t检验, 多组间均数比较采用单因素方差分析; P < 0.05为差异具有统计学意义。
作者贡献: 程红艳负责调研整理文献和文章撰写; 王丹慧负责调研整理文献、设计研究方案、实施研究过程、采集整理数据; 赵文杰参与研究、统计分析、提供技术支持; 王天城、许文雪、张彩云和赵亚男给予工作支持、修订论文、论文校正; 张艳春对本文提供指导性支持, 设计论文总纲和终审论文。
利益冲突: 所有作者均声明不存在任何利益相关问题。
  • 中药研究与开发安徽省重点实验室开放基金项目(AKLPDCM202306)
  • 安徽省高等学校自然科学类研究项目(2023AH040107)
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2024年第59卷第9期
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doi: 10.16438/j.0513-4870.2024-0040
  • 接收时间:2024-01-15
  • 首发时间:2025-11-24
  • 出版时间:2024-09-12
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  • 收稿日期:2024-01-15
  • 修回日期:2024-05-31
基金
中药研究与开发安徽省重点实验室开放基金项目(AKLPDCM202306)
安徽省高等学校自然科学类研究项目(2023AH040107)
作者信息
    1.安徽中医药大学药学院, 安徽 合肥 230012
    2.安徽省中药研究与开发重点实验室, 安徽 合肥 230012
    3.中国科学院合肥肿瘤医院药学中心, 安徽 合肥 230012

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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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