Jianguo Xu, Xin Li, Xiaoli Zeng, Hairong Bao, Xiaoju Liu
{"title":"Punicalagin化合物通过PAR2/mTOR途径缓解香烟烟雾提取物诱导的支气管上皮细胞衰老","authors":"Jianguo Xu, Xin Li, Xiaoli Zeng, Hairong Bao, Xiaoju Liu","doi":"10.2174/0109298673346794241001110826","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Tobacco smoke is an important inducer of airway epithelial cell aging. Punicalagin(PCG) is a natural anti-aging compound. The effect of PCG on tobacco smoke-induced airway epithelial cell senescence is unknown.</p><p><strong>Objective: </strong>Our study investigated whether PCG can treat the human bronchial epithelial cell line (BEAS-2B) aging by inhibiting the protease-activated receptor 2 (PAR2)/m- TOR pathway.</p><p><strong>Methods: </strong>Bioinformatics techniques were used to analyze the potential biological functions of PAR2. Molecular dynamics evaluated the binding ability of PCG and PAR2. The CCK8 assay was used to detect the cytotoxicity of CSE and PCG. The activity of the PAR2/mTOR pathway and the expression of the characteristic aging markers p16, p21, and SIRT1 are detected by qRT-PCR and Western blotting. Cell senescence was observed by Senescence-associated β-galactosidase (SA-β-gal) staining. The senescence-associated secretory phenotype (SASP): concentrations of interleukin IL-6, IL-8, and TNF- α were detected by ELISA.</p><p><strong>Results: </strong>The GSE57148 bioinformatics analysis dataset showed that PAR2 regulates lung senescence through the mTOR signaling pathway. Molecular dynamics results found that PCG and PAR2 had a strong and stable binding force. CSE induces BEAS-2B cell senescence and activates the PAR2/mTOR pathway. Inhibition of PAR2 mitigated the senescence changes. In addition, PCG's pretreatment can significantly alleviate CSE-induced BEAS-2B cell senescence while inhibiting the PAR2/mTOR pathway.</p><p><strong>Conclusion: </strong>PCG has a therapeutic effect on the senescence of airway epithelial cells.</p>","PeriodicalId":10984,"journal":{"name":"Current medicinal chemistry","volume":null,"pages":null},"PeriodicalIF":3.5000,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The Punicalagin Compound Mitigates Bronchial Epithelial Cell Senescence Induced by Cigarette Smoke Extract through the PAR2/mTOR Pathway.\",\"authors\":\"Jianguo Xu, Xin Li, Xiaoli Zeng, Hairong Bao, Xiaoju Liu\",\"doi\":\"10.2174/0109298673346794241001110826\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>Tobacco smoke is an important inducer of airway epithelial cell aging. Punicalagin(PCG) is a natural anti-aging compound. The effect of PCG on tobacco smoke-induced airway epithelial cell senescence is unknown.</p><p><strong>Objective: </strong>Our study investigated whether PCG can treat the human bronchial epithelial cell line (BEAS-2B) aging by inhibiting the protease-activated receptor 2 (PAR2)/m- TOR pathway.</p><p><strong>Methods: </strong>Bioinformatics techniques were used to analyze the potential biological functions of PAR2. Molecular dynamics evaluated the binding ability of PCG and PAR2. The CCK8 assay was used to detect the cytotoxicity of CSE and PCG. The activity of the PAR2/mTOR pathway and the expression of the characteristic aging markers p16, p21, and SIRT1 are detected by qRT-PCR and Western blotting. Cell senescence was observed by Senescence-associated β-galactosidase (SA-β-gal) staining. The senescence-associated secretory phenotype (SASP): concentrations of interleukin IL-6, IL-8, and TNF- α were detected by ELISA.</p><p><strong>Results: </strong>The GSE57148 bioinformatics analysis dataset showed that PAR2 regulates lung senescence through the mTOR signaling pathway. Molecular dynamics results found that PCG and PAR2 had a strong and stable binding force. CSE induces BEAS-2B cell senescence and activates the PAR2/mTOR pathway. Inhibition of PAR2 mitigated the senescence changes. In addition, PCG's pretreatment can significantly alleviate CSE-induced BEAS-2B cell senescence while inhibiting the PAR2/mTOR pathway.</p><p><strong>Conclusion: </strong>PCG has a therapeutic effect on the senescence of airway epithelial cells.</p>\",\"PeriodicalId\":10984,\"journal\":{\"name\":\"Current medicinal chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2024-10-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Current medicinal chemistry\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.2174/0109298673346794241001110826\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"BIOCHEMISTRY & MOLECULAR BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current medicinal chemistry","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.2174/0109298673346794241001110826","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
The Punicalagin Compound Mitigates Bronchial Epithelial Cell Senescence Induced by Cigarette Smoke Extract through the PAR2/mTOR Pathway.
Background: Tobacco smoke is an important inducer of airway epithelial cell aging. Punicalagin(PCG) is a natural anti-aging compound. The effect of PCG on tobacco smoke-induced airway epithelial cell senescence is unknown.
Objective: Our study investigated whether PCG can treat the human bronchial epithelial cell line (BEAS-2B) aging by inhibiting the protease-activated receptor 2 (PAR2)/m- TOR pathway.
Methods: Bioinformatics techniques were used to analyze the potential biological functions of PAR2. Molecular dynamics evaluated the binding ability of PCG and PAR2. The CCK8 assay was used to detect the cytotoxicity of CSE and PCG. The activity of the PAR2/mTOR pathway and the expression of the characteristic aging markers p16, p21, and SIRT1 are detected by qRT-PCR and Western blotting. Cell senescence was observed by Senescence-associated β-galactosidase (SA-β-gal) staining. The senescence-associated secretory phenotype (SASP): concentrations of interleukin IL-6, IL-8, and TNF- α were detected by ELISA.
Results: The GSE57148 bioinformatics analysis dataset showed that PAR2 regulates lung senescence through the mTOR signaling pathway. Molecular dynamics results found that PCG and PAR2 had a strong and stable binding force. CSE induces BEAS-2B cell senescence and activates the PAR2/mTOR pathway. Inhibition of PAR2 mitigated the senescence changes. In addition, PCG's pretreatment can significantly alleviate CSE-induced BEAS-2B cell senescence while inhibiting the PAR2/mTOR pathway.
Conclusion: PCG has a therapeutic effect on the senescence of airway epithelial cells.
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Aims & Scope
Current Medicinal Chemistry covers all the latest and outstanding developments in medicinal chemistry and rational drug design. Each issue contains a series of timely in-depth reviews and guest edited thematic issues written by leaders in the field covering a range of the current topics in medicinal chemistry. The journal also publishes reviews on recent patents. Current Medicinal Chemistry is an essential journal for every medicinal chemist who wishes to be kept informed and up-to-date with the latest and most important developments.
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