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Transcriptional regulation of the Human MGP promoter: Identification of downstream repressors

dc.contributor.authorCaiado, Helena
dc.contributor.authorCancela, M. Leonor
dc.contributor.authorConceição, Natércia
dc.date.accessioned2025-01-15T13:40:11Z
dc.date.available2025-01-15T13:40:11Z
dc.date.issued2024-11-23
dc.description.abstractMatrix Gla protein (MGP) is a vitamin K-dependent γ-carboxylated protein that was initially identified as a physiological inhibitor of ectopic calcification, primarily affecting cartilage and the vascular system. Mutations in the MGP gene were found to be responsible for the Keutel syndrome, a condition characterized by abnormal calcifications in the cartilage, lungs, brain, and vascular system. MGP has been shown to be dysregulated in several tumors, including cervical, ovarian, urogenital, and breast cancers. Using bioinformatic approaches, transcription factor binding sites (TFBSs) containing CpG dinucleotides were identified in the MGP promoter, including those for YY1, GATA1, and C/EBPα. We carried out functional tests using transient transfections with a luciferase reporter assay, primarily for the transcription factors YY1, GATA1, C/EBPα, and RUNX2. By co-transfection analysis, we found that YY1, GATA1, and C/EBPα repressed the MGP promoter. Furthermore, the co-transfection with RUNX2 activated the MGP promoter. In addition, MGP expression is negatively or positively correlated with the studied TFs’ expression levels in several cancer types. This study provides novel insights into MGP regulation by demonstrating that YY1, GATA1, and C/EBPα are negative regulators of the MGP promoter, and DNA methylation may influence their activity. The dysregulation of these mechanisms in cancer should be further elucidated.eng
dc.description.sponsorshipPD/BD/128341/2017 and COVID/BD/152110/2021
dc.identifier.doi10.3390/ijms252312597
dc.identifier.issn1422-0067
dc.identifier.urihttp://hdl.handle.net/10400.1/26627
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.relation.ispartofInternational Journal of Molecular Sciences
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectMGP
dc.subjectTranscriptional regulation
dc.subjectMethylation
dc.subjectYY1
dc.subjectGATA1
dc.subjectC/EBPα
dc.titleTranscriptional regulation of the Human MGP promoter: Identification of downstream repressorseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.citation.issue23
oaire.citation.startPage12597
oaire.citation.titleInternational Journal of Molecular Sciences
oaire.citation.volume25
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameCaiado
person.familyNameCancela
person.familyNameConceição
person.givenNameHelena
person.givenNameM. Leonor
person.givenNameNatércia
person.identifier.ciencia-id7D19-F0E4-4166
person.identifier.ciencia-id7C11-760D-F425
person.identifier.orcid0000-0002-2754-8266
person.identifier.orcid0000-0003-3114-6662
person.identifier.orcid0000-0002-5057-0912
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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