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Interstitial cells from left-sided heart valves display more calcification potential than right-sided ones : an in vitro study of porcine valves

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bul.description.provenanceeb spbfr
bul.rights.dateAccepPubl2008-11-22fr
bul.rights.periodeEmbargoP1Yfr
bul.rights.typeDatedateAcceptationfr
dc.contributor.authorRoussel, Élise
dc.contributor.authorCouët, Jacques
dc.contributor.authorDrolet, Marie-Claude.
dc.contributor.authorBouchard Martel, Joanie
dc.contributor.authorArsenault, Marie
dc.date.accessioned2017-11-15T14:19:09Z
dc.date.available2017-11-15T14:19:09Z
dc.date.issued2009-07-01
dc.description.abstractBACKGROUND AND AIM OF THE STUDY: The calcification of cardiac valves is more frequently observed on left-sided (aortic or mitral) than right-sided (pulmonic or tricuspid) valves. The cause of this preferential left-sided calcification remains relatively unknown. The study aim was to evaluate the capacity of interstitial cells isolated from the four cardiac valves of healthy adult pigs to calcify in culture. METHODS: Interstitial cells were isolated from the valve leaflets of three healthy young pigs and cultured in DMEM/fetal bovine serum (10%) in the presence or absence of osteogenic additives (ascorbic acid, dexamethasone, beta-glycerophosphate). RESULTS: The proliferation rate was similar for cells from each of the four valves. After longer periods of culture (> 10 days), cells from each valve spontaneously formed several calcification nodules, the process being accelerated in the presence of osteogenic additives (to 4-7 days). Alkaline phosphatase (AP) activity was highest in cells originating from the aortic and mitral valves, respectively, and least in those from the pulmonic and tricuspid valves. Culture with the osteogenic additives increased the AP activity by at least 50% for each valve, but the relative AP activity between cells from each valve origin tended to remain similar (aortic > mitral > pulmonic > tricuspid). Interestingly, the levels of matrix Gla-protein mRNA (an endogenous calcification inhibitor) followed an opposite trend of expression for each valve. CONCLUSION: Interstitial cells from porcine cardiac valves share similarities, although the capacity to calcify is more evident in cells from valves of the left side of the heart. Interstitial cells from the aortic valve displayed the greatest potential for calcification.fr
dc.identifier.issn0966-8519fr
dc.identifier.pubmed19852147fr
dc.identifier.urihttp://hdl.handle.net/20.500.11794/15836
dc.languageengfr
dc.publisherICRfr
dc.rightshttp://purl.org/coar/access_right/c_abf2
dc.subjectInterstitial cellsfr
dc.subjectAlkaline phosphatasefr
dc.subjectHeart valvefr
dc.subjectCalcificationfr
dc.subject.rvmCœur -- Valvules -- Calcificationfr
dc.subject.rvmPhosphatase alcalinefr
dc.titleInterstitial cells from left-sided heart valves display more calcification potential than right-sided ones : an in vitro study of porcine valvesfr
dc.typearticle de recherche
dc.type.legacyCOAR1_1::Texte::Périodique::Revue::Contribution à un journal::Article::Article de recherchefr
dcterms.bibliographicCitationThe Journal of Heart Valve Disease, Vol. 18 (4), 221-229 (July 2009)fr
dcterms.date.accepted2008-11-22
dspace.accessstatus.time2023-05-24 18:00:26
dspace.entity.typePublication
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relation.isAuthorOfPublicatione8fc7880-f4d7-42a9-88cd-2259c63fa19f
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relation.isAuthorOfPublication.latestForDiscovery225aedeb-6830-4473-b07e-32b711352293
relation.isResourceTypeOfPublication4c433ef5-3937-4530-8252-cca17d715747
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rioxxterms.projectMOP-74454fr_CA
rioxxterms.project.funder-nameCanadian Institutes of Health Researchfr
rioxxterms.project.funder-nameHeart and Stroke Foundation of Canadafr
rioxxterms.project.funder-nameInstitut de cardiologie de Québecfr
rioxxterms.versionAccepted Manuscript (AM)fr
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