Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.bcp.2006.07.028
DC FieldValue
dc.titleGene expression profiling in R-flurbiprofen-treated prostate cancer: R-Flurbiprofen regulates prostate stem cell antigen through activation of AKT kinase
dc.contributor.authorZemskova, M.
dc.contributor.authorBashkirova, S.
dc.contributor.authorLilly, M.B.
dc.contributor.authorWechter, W.
dc.contributor.authorChen, C.-S.
dc.contributor.authorReiter, R.
dc.date.accessioned2011-09-27T05:15:02Z
dc.date.available2011-09-27T05:15:02Z
dc.date.issued2006
dc.identifier.citationZemskova, M., Bashkirova, S., Lilly, M.B., Wechter, W., Chen, C.-S., Reiter, R. (2006). Gene expression profiling in R-flurbiprofen-treated prostate cancer: R-Flurbiprofen regulates prostate stem cell antigen through activation of AKT kinase. Biochemical Pharmacology 72 (10) : 1257-1267. ScholarBank@NUS Repository. https://doi.org/10.1016/j.bcp.2006.07.028
dc.identifier.issn00062952
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/26728
dc.description.abstractWe have used gene expression profiling to characterize genes regulated by the anti-tumor non-steroidal anti-inflammatory drug (NSAID)-like agent R-flurbiprofen (RFB) in murine TRAMP prostate cancer. Mice with spontaneous, palpable tumors were treated with RFB 25 mg/(kg d) × 7d orally, or vehicle only. RNA was then extracted from tumor tissue and used for microarray analysis with Affymetrix chips. Fifty-eight genes were reproducibly regulated by RFB treatment. One of the most highly up-regulated genes was prostate stem cell antigen (psca). We used TRAMP C1 murine prostate cancer cells to examine potential mechanisms through which RFB could regulate psca. RFB induced dose-dependent expression of PSCA protein, and activity of the psca promoter, in TRAMP C1 cells in culture. Increased psca promoter activity was also seen following treatment of cells with sulindac sulfone, another NSAID-like agent, but not with celecoxib treatment. RFB activation of the psca promoter could be attenuated by co-transfection of dominant-negative akt and h-ras constructs, but not by dominant-negative mek1 plasmids. Immunoblotting revealed that RFB increased expression of phosphorylated AKT at concentrations that stimulated psca promoter activity, and that increased PSCA protein expression. In addition, RFB-dependent up-regulation of PSCA protein expression could be blocked by AKT inhibitors. These data demonstrate that RFB, and possibly other NSAID-like analogs, can increase expression of the psca gene both in vivo and in culture. They further suggest the utility of combining RFB with AKT inhibitors or with monoclonal antibodies targeting PSCA protein, for treatment or prevention of prostate cancer. © 2006 Elsevier Inc. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.bcp.2006.07.028
dc.sourceScopus
dc.subjectAKT
dc.subjectMicroarray
dc.subjectNSAID
dc.subjectProstate cancer
dc.subjectPSCA
dc.subjectR-Flurbiprofen
dc.subjectTRAMP
dc.typeArticle
dc.contributor.departmentMEDICINE
dc.description.doi10.1016/j.bcp.2006.07.028
dc.description.sourcetitleBiochemical Pharmacology
dc.description.volume72
dc.description.issue10
dc.description.page1257-1267
dc.identifier.isiut000242005400007
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