Scribble participates in Hippo signaling and is required for normal zebrafish pronephros development
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Scribble participates in Hippo signaling and is required for normal zebrafish pronephros development. / Skouloudaki, Kassiani; Puetz, Michael; Simons, Matias; Courbard, Jean-Remy; Boehlke, Christopher; Hartleben, Björn; Engel, Christina; Moeller, Marcus J; Englert, Christoph; Bollig, Frank; Schäfer, Tobias; Ramachandran, Haribaskar; Mlodzik, Marek; Huber, Tobias B; Kuehn, E Wolfgang; Kim, Emily; Kramer-Zucker, Albrecht; Walz, Gerd.
in: P NATL ACAD SCI USA, Jahrgang 106, Nr. 21, 26.05.2009, S. 8579-84.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Scribble participates in Hippo signaling and is required for normal zebrafish pronephros development
AU - Skouloudaki, Kassiani
AU - Puetz, Michael
AU - Simons, Matias
AU - Courbard, Jean-Remy
AU - Boehlke, Christopher
AU - Hartleben, Björn
AU - Engel, Christina
AU - Moeller, Marcus J
AU - Englert, Christoph
AU - Bollig, Frank
AU - Schäfer, Tobias
AU - Ramachandran, Haribaskar
AU - Mlodzik, Marek
AU - Huber, Tobias B
AU - Kuehn, E Wolfgang
AU - Kim, Emily
AU - Kramer-Zucker, Albrecht
AU - Walz, Gerd
PY - 2009/5/26
Y1 - 2009/5/26
N2 - Spatial organization of cells and their appendages is controlled by the planar cell polarity pathway, a signaling cascade initiated by the protocadherin Fat in Drosophila. Vertebrates express 4 Fat molecules, Fat1-4. We found that depletion of Fat1 caused cyst formation in the zebrafish pronephros. Knockdown of the PDZ domain containing the adaptor protein Scribble intensified the cyst-promoting phenotype of Fat1 depletion, suggesting that Fat1 and Scribble act in overlapping signaling cascades during zebrafish pronephros development. Supporting the genetic interaction with Fat1, Scribble recognized the PDZ-binding site of Fat1. Depletion of Yes-associated protein 1 (YAP1), a transcriptional co-activator inhibited by Hippo signaling, ameliorated the cyst formation in Fat1-deficient zebrafish, whereas Scribble inhibited the YAP1-induced cyst formation. Thus, reduced Hippo signaling and subsequent YAP1 disinhibition seem to play a role in the development of pronephric cysts after depletion of Fat1 or Scribble. We hypothesize that Hippo signaling is required for normal pronephros development in zebrafish and that Scribble is a candidate link between Fat and the Hippo signaling cascade in vertebrates.
AB - Spatial organization of cells and their appendages is controlled by the planar cell polarity pathway, a signaling cascade initiated by the protocadherin Fat in Drosophila. Vertebrates express 4 Fat molecules, Fat1-4. We found that depletion of Fat1 caused cyst formation in the zebrafish pronephros. Knockdown of the PDZ domain containing the adaptor protein Scribble intensified the cyst-promoting phenotype of Fat1 depletion, suggesting that Fat1 and Scribble act in overlapping signaling cascades during zebrafish pronephros development. Supporting the genetic interaction with Fat1, Scribble recognized the PDZ-binding site of Fat1. Depletion of Yes-associated protein 1 (YAP1), a transcriptional co-activator inhibited by Hippo signaling, ameliorated the cyst formation in Fat1-deficient zebrafish, whereas Scribble inhibited the YAP1-induced cyst formation. Thus, reduced Hippo signaling and subsequent YAP1 disinhibition seem to play a role in the development of pronephric cysts after depletion of Fat1 or Scribble. We hypothesize that Hippo signaling is required for normal pronephros development in zebrafish and that Scribble is a candidate link between Fat and the Hippo signaling cascade in vertebrates.
KW - Animals
KW - Animals, Genetically Modified
KW - Cadherins
KW - Cell Line
KW - Embryo, Nonmammalian
KW - Humans
KW - Kidney
KW - Membrane Proteins
KW - Microtubule-Associated Proteins
KW - Promoter Regions, Genetic
KW - Protein Binding
KW - Protein-Serine-Threonine Kinases
KW - Signal Transduction
KW - Zebrafish
KW - Zebrafish Proteins
KW - Journal Article
KW - Research Support, N.I.H., Extramural
KW - Research Support, Non-U.S. Gov't
U2 - 10.1073/pnas.0811691106
DO - 10.1073/pnas.0811691106
M3 - SCORING: Journal article
C2 - 19439659
VL - 106
SP - 8579
EP - 8584
JO - P NATL ACAD SCI USA
JF - P NATL ACAD SCI USA
SN - 0027-8424
IS - 21
ER -