2007
DOI: 10.1038/nature06254
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Haemodynamics determined by a genetic programme govern asymmetric development of the aortic arch

Abstract: Laterality of the internal organs of vertebrates is determined by asymmetric Nodal signalling in the lateral plate mesoderm. A deficiency of such signalling results in heterotaxia syndrome, characterized by anomalous laterality of visceral organs and complex congenital heart conditions. Pitx2, the transcription factor induced by the Nodal signal, regulates left-right asymmetric morphogenesis. The cellular and molecular bases of asymmetric morphogenesis remain largely unknown, however. Here we show that ablatio… Show more

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Cited by 205 publications
(170 citation statements)
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“…What role does the relocation of zyxin play, if any, in endocardial morphogenesis? Yashiro et al (2007) has shown that left-right asymmetry of aortic arch was determined by asymmetric blood flow during the development of great arteries. Similarly, sheer stress induced by blood flow or mechanostress altered through cardiac morphogenesis might induce the relocation of proteins that sense mechanical forces, thereby contributing to endocardial morphogenesis.…”
Section: Discussionmentioning
confidence: 99%
“…What role does the relocation of zyxin play, if any, in endocardial morphogenesis? Yashiro et al (2007) has shown that left-right asymmetry of aortic arch was determined by asymmetric blood flow during the development of great arteries. Similarly, sheer stress induced by blood flow or mechanostress altered through cardiac morphogenesis might induce the relocation of proteins that sense mechanical forces, thereby contributing to endocardial morphogenesis.…”
Section: Discussionmentioning
confidence: 99%
“…Les observations révèlent qu'aucune cellule positive pour Pitx2 n'est présente dans le VI e arc aortique (droit et gauche) des mutants Pitx2 ΔASE/ΔASE [5]. Ces résul-tats suggèrent que, bien que le remodelage asymétrique des arcs aortiques requière Pitx2, il ne dépend pas de sa fonction dans les arcs aortiques.…”
Section: éTablissement De La Latéralité De La Crosse Aortiqueunclassified
“…Le remodelage des III e et IV e arcs aortiques droit et gauche, du VI e arc aortique gauche, et la régression du VI e arc aortique droit et de l'aorte dorsale droite, permettent l'anatomie normale de la crosse à gauche et du canal artériel dans sa concavité. B. Stratégie expérimentale développée par Yashiro et al [5] du transgène Vegfa confirment l'implication de ces molécules dans la formation normale de la crosse aortique. Il est intéressant de noter que ces molécules sont aussi impliquées dans la régression des vaisseaux tumoraux [10].…”
Section: Expression Asymétrique De Vegf Et Pdgf-a Dans Les Arcs Aortiunclassified
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