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Korostylev, A.* ; Worzfeld, T.* ; Deng, S.* ; Friedel, R.H. ; Swiercz, J.M.* ; Vodrazka, P.* ; Maier, V. ; Hirschberg, A.* ; Ohoka, Y.* ; Inagaki, S.* ; Offermanns, S.* ; Kuner, R.*

A functional role for semaphorin 4D/plexin B1 interactions in epithelial branching morphogenesis during organogenesis.

Development 135, 3333-3343 (2008)
DOI PMC
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Semaphorins and their receptors, plexins, carry out important functions during development and disease. In contrast to the well-characterized plexin A family, however, very little is known about the functional relevance of B-type plexins in organogenesis, particularly outside the nervous system. Here, we demonstrate that plexin B1 and its ligand Sema4d are selectively expressed in epithelial and mesenchymal compartments during key steps in the genesis of some organs. This selective expression suggests a role in epithelial-mesenchymal interactions. Importantly, using the developing metanephros as a model system, we have observed that endogenously expressed and exogenously supplemented Sema4d inhibits branching morphogenesis during early stages of development of the ureteric collecting duct system. Our results further suggest that the RhoA-ROCK pathway, which is activated downstream of plexin B1, mediates these inhibitory morphogenetic effects of Sema4d and suppresses branch-promoting signalling effectors of the plexin B1 signalling complex. Finally, mice that lack plexin B1 show early anomalies in kidney development in vivo. These results identify a novel function for plexin B1 as a negative regulator of branching morphogenesis during kidney development, and suggest that the Sema4d-plexin B1 ligand-receptor pair contributes to epithelial-mesenchymal interactions during organogenesis via modulation of RhoA signalling.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter kidney development; RhoA; ROCK; epithelial-mesenchymal interaction; transgenic mouse
Sprache
Veröffentlichungsjahr 2008
HGF-Berichtsjahr 2008
ISSN (print) / ISBN 0950-1991
e-ISSN 1477-9129
Zeitschrift Development / Company of Biologists
Quellenangaben Band: 135, Heft: 20, Seiten: 3333-3343 Artikelnummer: , Supplement: ,
Verlag Company of Biologists
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Developmental Genetics (IDG)
POF Topic(s) 30204 - Cell Programming and Repair
Forschungsfeld(er) Genetics and Epidemiology
PSP-Element(e) G-500500-001
DOI 10.1242/dev.019760
Scopus ID 58149240678
PubMed ID 18799546
Erfassungsdatum 2008-12-31
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