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Planar cell polarity genes frizzled4 and frizzled6 exert patterning influence on arterial vessel morphogenesis.

dc.rights.licenseopenen_US
dc.contributor.authorMARKOVIC, R.
hal.structure.identifierBiologie des maladies cardiovasculaires = Biology of Cardiovascular Diseases
dc.contributor.authorPELTAN, J.
dc.contributor.authorGOSAK, M.
dc.contributor.authorHORVAT, D.
dc.contributor.authorZALIK, B.
hal.structure.identifierBiologie des maladies cardiovasculaires = Biology of Cardiovascular Diseases
dc.contributor.authorSEGUY, B.
hal.structure.identifierBiologie des maladies cardiovasculaires = Biology of Cardiovascular Diseases
dc.contributor.authorCHAUVEL, R.
dc.contributor.authorMALANDAIN, G.
hal.structure.identifierBiologie des maladies cardiovasculaires = Biology of Cardiovascular Diseases
dc.contributor.authorCOUFFINHAL, T.
hal.structure.identifierBiologie des maladies cardiovasculaires = Biology of Cardiovascular Diseases
dc.contributor.authorDUPLAA, C.
dc.contributor.authorMARHL, M.
hal.structure.identifierBiologie des maladies cardiovasculaires = Biology of Cardiovascular Diseases
dc.contributor.authorROUX, E.
dc.date.accessioned2020
dc.date.available2020
dc.date.issued2017
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/21222
dc.description.abstractEnQuantitative analysis of the vascular network anatomy is critical for the understanding of the vasculature structure and function. In this study, we have combined microcomputed tomography (microCT) and computational analysis to provide quantitative three-dimensional geometrical and topological characterization of the normal kidney vasculature, and to investigate how 2 core genes of the Wnt/planar cell polarity, Frizzled4 and Frizzled6, affect vascular network morphogenesis. Experiments were performed on frizzled4 (Fzd4-/-) and frizzled6 (Fzd6-/-) deleted mice and littermate controls (WT) perfused with a contrast medium after euthanasia and exsanguination. The kidneys were scanned with a high-resolution (16 μm) microCT imaging system, followed by 3D reconstruction of the arterial vasculature. Computational treatment includes decomposition of 3D networks based on Diameter-Defined Strahler Order (DDSO). We have calculated quantitative (i) Global scale parameters, such as the volume of the vasculature and its fractal dimension (ii) Structural parameters depending on the DDSO hierarchical levels such as hierarchical ordering, diameter, length and branching angles of the vessel segments, and (iii) Functional parameters such as estimated resistance to blood flow alongside the vascular tree and average density of terminal arterioles. In normal kidneys, fractal dimension was 2.07±0.11 (n = 7), and was significantly lower in Fzd4-/- (1.71±0.04; n = 4), and Fzd6-/- (1.54±0.09; n = 3) kidneys. The DDSO number was 5 in WT and Fzd4-/-, and only 4 in Fzd6-/-. Scaling characteristics such as diameter and length of vessel segments were altered in mutants, whereas bifurcation angles were not different from WT. Fzd4 and Fzd6 deletion increased vessel resistance, calculated using the Hagen-Poiseuille equation, for each DDSO, and decreased the density and the homogeneity of the distal vessel segments. Our results show that our methodology is suitable for 3D quantitative characterization of vascular networks, and that Fzd4 and Fzd6 genes have a deep patterning effect on arterial vessel morphogenesis that may determine its functional efficiency.
dc.language.isoENen_US
dc.rightsAttribution 3.0 United States
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/us/
dc.subject*Article RECHERCHE
dc.title.enPlanar cell polarity genes frizzled4 and frizzled6 exert patterning influence on arterial vessel morphogenesis.
dc.title.alternativePLoS Oneen_US
dc.typeArticle de revueen_US
dc.identifier.doi10.1371/journal.pone.0171033en_US
dc.subject.halSciences du Vivant [q-bio]/Médecine humaine et pathologieen_US
bordeaux.journalPLoS ONEen_US
bordeaux.pagee0171033en_US
bordeaux.volume12en_US
bordeaux.hal.laboratoriesBiologie des maladies cardiovasculaires - U1034en_US
bordeaux.issue3en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
hal.exportfalse
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