Epigenetic and oncogenic regulation of SLC16A7 (MCT2) results in protein over-expression, impacting on signalling and cellular phenotypes in prostate cancer

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorPertega-Gomes, Nelma
dc.creatorVizcaino, José R.
dc.creatorFelisbino, Sérgio Luis
dc.creatorWarren, Anne Y.
dc.creatorShaw, Greg
dc.creatorKay, Jonathan
dc.creatorWhitaker, Hayley
dc.creatorLynch, Andy G.
dc.creatorFryer, Lee
dc.creatorNeal, David E.
dc.creatorMassie, Charles E.
dc.date2015-12-07T15:37:15Z
dc.date2016-10-25T21:23:47Z
dc.date2015-12-07T15:37:15Z
dc.date2016-10-25T21:23:47Z
dc.date2015-08-28
dc.date.accessioned2017-04-06T09:31:24Z
dc.date.available2017-04-06T09:31:24Z
dc.identifierOncotarget, v. 6, n. 25, p. 21675-21684, 2015.
dc.identifier1949-2553
dc.identifierhttp://hdl.handle.net/11449/131541
dc.identifierhttp://acervodigital.unesp.br/handle/11449/131541
dc.identifier10.18632/oncotarget.4328
dc.identifierPM26035357.pdf
dc.identifier26035357
dc.identifierhttp://dx.doi.org/10.18632/oncotarget.4328
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/942081
dc.descriptionMonocarboxylate Transporter 2 (MCT2) is a major pyruvate transporter encoded by the SLC16A7 gene. Recent studies pointed to a consistent overexpression of MCT2 in prostate cancer (PCa) suggesting MCT2 as a putative biomarker and molecular target. Despite the importance of this observation the mechanisms involved in MCT2 regulation are unknown. Through an integrative analysis we have discovered that selective demethylation of an internal SLC16A7/MCT2 promoter is a recurrent event in independent PCa cohorts. This demethylation is associated with expression of isoforms differing only in 5'-UTR translational control motifs, providing one contributing mechanism for MCT2 protein overexpression in PCa. Genes co-expressed with SLC16A7/MCT2 also clustered in oncogenic-related pathways and effectors of these signalling pathways were found to bind at the SLC16A7/MCT2 gene locus. Finally, MCT2 knock-down attenuated the growth of PCa cells. The present study unveils an unexpected epigenetic regulation of SLC16A7/MCT2 isoforms and identifies a link between SLC16A7/MCT2, Androgen Receptor (AR), ETS-related gene (ERG) and other oncogenic pathways in PCa. These results underscore the importance of combining data from epigenetic, transcriptomic and protein level changes to allow more comprehensive insights into the mechanisms underlying protein expression, that in our case provide additional weight to MCT2 as a candidate biomarker and molecular target in PCa.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageeng
dc.publisherOncotarget
dc.relationOncotarget
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectCastrate resistant disease
dc.subjectMalignant phenotype
dc.subjectMonocarboxylate transporter 2
dc.subjectProstate cancer
dc.titleEpigenetic and oncogenic regulation of SLC16A7 (MCT2) results in protein over-expression, impacting on signalling and cellular phenotypes in prostate cancer
dc.typeOtro


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