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dc.contributor.author최형철ko
dc.contributor.author성진영ko
dc.contributor.author우창훈ko
dc.contributor.author강영진ko
dc.contributor.author이광윤ko
dc.date.accessioned2015-12-17T01:15:42Z-
dc.date.available2015-12-17T01:15:42Z-
dc.date.created2015-11-13-
dc.date.issued201109-
dc.identifier.citationBIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, v.413, no.1, pp.143 - 148-
dc.identifier.issn0006-291X-
dc.identifier.urihttp://hdl.handle.net/YU.REPOSITORY/24624-
dc.identifier.urihttp://dx.doi.org/10.1016/j.bbrc.2011.08.071-
dc.description.abstractVascular cells have a limited lifespan with limited cell proliferation and undergo cellular senescence. The functional changes associated with cellular senescence are thought to contribute to age-related vascular disorders. AMP-activated protein kinase (AMPK) has been discussed in terms of beneficial or harmful effects for aging-related diseases. However, the detailed functional mechanisms of AMPK are largely unclear. An aging model was established by stimulating vascular smooth muscle cell (VSMC) with adriamycin. Adriamycin progressively increased the mRNA and protein expressions of AMPK. The phosphorylation levels of LKB1 and acetyl-CoA carboxylase (ACC), the upstream and downstream of AMPK, were dramatically increased by adriamycin stimulation. The expressions of p53 and p21, which contribute to vascular senescence, were also increased. Inhibition of AMPK diminished senescence-associated beta-galactosidase (SA-beta-gal) staining, and restored VSMC proliferation. Cytosolic translocation of LKB1 by adriamycin could be a mechanism for AMPK activation in senescence. Furthermore, p53 siRNA and p21 siRNA transfection attenuated adriamycin-induced SA-beta-gal staining. These results suggest that LKB1 dependent AMPK activation elicits VSMC senescence and p53-p21 pathway is a mediator of LKB1/AMPK-induced senescence. (C) 2011 Elsevier Inc. All rights reserved.-
dc.language영어-
dc.publisherACADEMIC PRESS INC ELSEVIER SCIENCE-
dc.subjectACTIVATED PROTEIN-KINASE-
dc.subjectENDOTHELIAL-CELLS-
dc.subjectOXIDATIVE STRESS-
dc.subjectTUMOR-SUPPRESSOR-
dc.subjectATHEROSCLEROSIS-
dc.subjectPROLIFERATION-
dc.subjectDISEASE-
dc.subjectSURVIVAL-
dc.subjectSIRT1-
dc.titleAMPK induces vascular smooth muscle cell senescence via LKB1 dependent pathway-
dc.typeArticle-
dc.identifier.wosid000295395000025-
dc.identifier.scopusid2-s2.0-80052846661-
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