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  Aortic arch and pharyngeal phenotype in the absence of BMP- dependent neural crest in the mouse

Ohnemus, S., Kanzler, B., Jerome-Majewska, L. A., Papaioannou, V. E., Boehm, T., & Mallo, M. (2002). Aortic arch and pharyngeal phenotype in the absence of BMP- dependent neural crest in the mouse. Mechanisms of Development, 119(2), 127-135. doi:10.1016/s0925-4773(02)00345-3.

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 Urheber:
Ohnemus, Sabine1, Autor           
Kanzler, Benoit1, Autor           
Jerome-Majewska, Loydie A.2, Autor
Papaioannou, Virginia. E.2, Autor
Boehm, Thomas3, Autor           
Mallo, Moisés1, Autor
Affiliations:
1Department of Developmental Biology, Max Planck Institute of Immunobiology and Epigenetics, Max Planck Society, ou_2243650              
2External Organizations, ou_persistent22              
3Department of Developmental Immunology, Max Planck Institute of Immunobiology and Epigenetics, Max Planck Society, ou_2243647              

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Schlagwörter: neural crest; bone morphogenic protein signalling; thymus; heart outflow tract; DiGeorge syndrome
 Zusammenfassung: Neural crest cells are essential for proper development of a variety of tissues and structures, including peripheral and autonomic nervous systems, facial skeleton, aortic arches and pharyngeal glands like the thymus and parathyroids. Previous work has shown that bone morphogenic protein (BMP) signalling is required for the production of migratory neural crest cells that contribute to the neurogenic and skeletogenic lineages. We show here that BMP-dependent neural crest cells are also required for development of the embryonic aortic arches and pharynx-derived glands. Blocking formation or migration of this crest cell population from the caudal hindbrain resulted in strong phenotypes in the cardiac outflow tract and the thymus. Thymic aplasia or hypoplasia occurs despite uncompromised gene induction in the pharyngeal endoderm. In addition, when hypoplastic thymic tissue is found, it is ectopically located, but functional in thymopoiesis. Our data indicate that thymic phenotypes produced by neural crest deficits result from aberrant formation of pharyngeal pouches and impaired migration of thymic primordia because the mesenchymal content in the branchial arches is below a threshold level. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.

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Sprache(n): eng - English
 Datum: 2002-12
 Publikationsstatus: Online veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: ISI: 000179844300001
DOI: 10.1016/s0925-4773(02)00345-3
 Art des Abschluß: -

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Titel: Mechanisms of Development
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Shannon : Elsevier
Seiten: - Band / Heft: 119 (2) Artikelnummer: - Start- / Endseite: 127 - 135 Identifikator: ISSN: 0925-4773
CoNE: https://pure.mpg.de/cone/journals/resource/954927703126