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dc.contributor.author임재향-
dc.date.accessioned2020-03-23T16:30:13Z-
dc.date.available2020-03-23T16:30:13Z-
dc.date.issued2020-
dc.identifier.issn1421-9778-
dc.identifier.otherOAK-26604-
dc.identifier.urihttps://dspace.ewha.ac.kr/handle/2015.oak/253599-
dc.description.abstractBACKGROUND/AIMS: Idiopathic pulmonary fibrosis (IPF) is a specific form of progressive and chronic interstitial lung disease of unknown cause. IPF is characterized by excessive deposition of extracellular matrix (ECM) and destructive pathological remodeling due to epithelial-to-mesenchymal transition (EMT). Eventually, lung interstitium thickens and stiffens and breathing becomes difficult. It has been well established that the transforming growth factor-β1 (TGF-β1)/Smad signaling pathway plays a critical role in the pathogenesis of pulmonary fibrosis. TGF-β1-mediated activation of mitogen activated protein kinase (MAPK) family affects Smad signaling. p90RSK is a serine/threonine kinase and is activated by the extracellular signal-regulated kinase (ERK) signaling pathway. However, the roles played by p90RSK in TGF-β1 signaling and the pathogenesis of pulmonary fibrosis remain unknown. METHODS: We investigated whether p90RSK regulates the pathogenesis of pulmonary fibrosis using in vitro and in vivo systems and Western blotting, real-time quantitative PCR, transcriptional activity assays and immunofluorescence studies. RESULTS: Pharmacological inhibition of p90RSK by FMK or inhibition of p90RSK with adenoviral vector encoding a dominant negative form of p90RSK suppressed TGF-β1-induced ECM accumulation and EMT in lung epithelial cells and fibroblasts. Interestingly, FMK significantly inhibited TGF-β1-induced Smad3 nuclear translocation and smad binding element-dependent transcriptional activity, but not Smad3 phosphorylation. Furthermore, in a mouse model of bleomycin-induced lung fibrosis, FMK ameliorated pulmonary fibrosis. CONCLUSION: These findings indicate that p90RSK plays critical roles in pulmonary fibrosis, which suggests it be viewed as a novel therapeutic target for the treatment of lung fibrosis. © Copyright by the Author(s). Published by Cell Physiol Biochem Press.-
dc.languageEnglish-
dc.publisherNLM (Medline)-
dc.subjectPulmonary fibrosis-
dc.subjectp90RSK-
dc.subjectTGF-β1-
dc.subjectECM-
dc.subjectEMT-
dc.titlep90RSK Inhibition Ameliorates TGF-β1 Signaling and Pulmonary Fibrosis by Inhibiting Smad3 Transcriptional Activity-
dc.typeArticle-
dc.relation.issue2-
dc.relation.volume54-
dc.relation.indexSCOPUS-
dc.relation.startpage195-
dc.relation.lastpage210-
dc.relation.journaltitleCellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology-
dc.identifier.doi10.33594/000000214-
dc.identifier.scopusid2-s2.0-85079789459-
dc.author.googleKim S.-
dc.author.googleHan J.-H.-
dc.author.googleLee H.-
dc.author.googleKim J.-R.-
dc.author.googleLim J.H.-
dc.author.googleWoo C.-H.-
dc.contributor.scopusid임재향(7403454262)-
dc.date.modifydate20200323113156-
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의과대학 > 의학과 > Journal papers
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