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Wild Roman chamomile extracts and phenolic compounds: enzymatic assays and molecular modelling studies with VEGFR-2 tyrosine kinase

dc.contributor.authorGuimarães, Rafaela
dc.contributor.authorCalhelha, Ricardo C.
dc.contributor.authorFroufe, Hugo J.C.
dc.contributor.authorAbreu, Rui M.V.
dc.contributor.authorCarvalho, Ana Maria
dc.contributor.authorQueiroz, Maria João R.P.
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2016-09-29T15:01:11Z
dc.date.available2016-09-29T15:01:11Z
dc.date.issued2016
dc.description.abstractAngiogenesis is a process by which new blood vessels are formed from the pre-existing vasculature, and it is a key process that leads to tumour development. Some studies have recognized phenolic compounds as chemopreventive agents; flavonoids, in particular, seem to suppress the growth of tumor cells modifying the cell cycle. Herein, the antiangiogenic activity of Roman chamomile (Chamaemelum nobile L.) extracts (methanolic extract and infusion) and the main phenolic compounds present (apigenin, apigenin-7-O-glucoside, caffeic acid, chlorogenic acid, luteolin, and luteolin-7-O-glucoside) was evaluated through enzymatic assays using the tyrosine kinase intracellular domain of the Vascular Endothelium Growth Factor Receptor-2 (VEGFR-2), which is a transmembrane receptor expressed fundamentally in endothelial cells involved in angiogenesis, and molecular modelling studies. The methanolic extract showed a lower IC50 value (concentration that provided 50% of VEGFR-2 inhibition) than the infusion, 269 and 301 μg mL(-1), respectively. Regarding phenolic compounds, luteolin and apigenin showed the highest capacity to inhibit the phosphorylation of VEGFR-2, leading us to believe that these compounds are involved in the activity revealed by the methanolic extract.pt_PT
dc.description.sponsorshipThe authors are grateful to strategic projects PEst-OE/AGR/UI0690/2014 and PEst-C/QUI/UI0686/2013-2014 for financial support to the research centres. R. Guimarães, and R. Calhelha thank to FCT, POPH-QREN and FSE for their grants (SFRH/BD/78307/2011 and SFRH/BPD/68344/2010).pt_PT
dc.identifier.citationGuimarães, Rafaela; Calhelha, Ricardo C.; Froufe, Hugo J.C.; Abreu, Rui M.V.; Carvalho, Ana Maria; Queiroz, Maria João R.P.; Ferreira, Isabel C.F.R. (2016). Wild Roman chamomile extracts and phenolic compounds: enzymatic assays and molecular modelling studies with VEGFR-2 tyrosine kinase. Food & Function. ISSN 2042-6496. 7:1, p. 79-83pt_PT
dc.identifier.doi10.1039/c5fo00586hpt_PT
dc.identifier.issn2042-6496
dc.identifier.urihttp://hdl.handle.net/10198/13341
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherRoyal Society of Chemistrypt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.titleWild Roman chamomile extracts and phenolic compounds: enzymatic assays and molecular modelling studies with VEGFR-2 tyrosine kinasept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/PEst-OE%2FAGR%2FUI0690%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/COMPETE/PEst-C%2FQUI%2FUI0686%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/Incentivo%2FQUI%2FUI0686%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F78307%2F2011/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F68344%2F2010/PT
oaire.citation.issue1pt_PT
oaire.citation.startPage79-83pt_PT
oaire.citation.titleFood & Functionpt_PT
oaire.citation.volume7pt_PT
oaire.fundingStream5876
oaire.fundingStreamCOMPETE
oaire.fundingStream3599-PPCDT
oaire.fundingStreamSFRH
oaire.fundingStreamSFRH
person.familyNameCalhelha
person.familyNameAbreu
person.familyNameCarvalho
person.familyNameFerreira
person.givenNameRicardo C.
person.givenNameRui M.V.
person.givenNameAna Maria
person.givenNameIsabel C.F.R.
person.identifierID G-7399-2011
person.identifier144781
person.identifier.ciencia-idF313-E3CE-554E
person.identifier.ciencia-id0F19-0DE2-12A2
person.identifier.ciencia-idD31A-35AF-E2A9
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0002-6801-4578
person.identifier.orcid0000-0002-7745-8015
person.identifier.orcid0000-0001-5508-5935
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridJ-2172-2014
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id6507978333
person.identifier.scopus-author-id7003290613
person.identifier.scopus-author-id20336503900
person.identifier.scopus-author-id36868826600
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.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
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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