PUBLICATION
The zebrafish-secreted matrix protein you/scube2 is implicated in long-range regulation of hedgehog signaling
- Authors
- Kawakami, A., Nojima, Y., Toyoda, A., Takahoko, M., Satoh, M., Tanaka, H., Wada, H., Masai, I., Terasaki, H., Sakaki, Y., Takeda, H., and Okamoto, H.
- ID
- ZDB-PUB-050309-4
- Date
- 2005
- Source
- Current biology : CB 15(5): 480-488 (Journal)
- Registered Authors
- Kawakami, Atsushi, Masai, Ichiro, Okamoto, Hitoshi, Takeda, Hiroyuki, Tanaka, Hideomi, Wada, Hironori
- Keywords
- none
- MeSH Terms
-
- Gene Components
- Genotype
- Epistasis, Genetic
- Base Sequence
- Signal Transduction/physiology*
- Central Nervous System/embryology*
- Sequence Analysis, DNA
- Animals
- DNA Primers
- Molecular Sequence Data
- Amino Acid Sequence
- In Situ Hybridization
- Trans-Activators/metabolism*
- Hedgehog Proteins
- Extracellular Matrix Proteins/genetics
- Extracellular Matrix Proteins/metabolism*
- Blotting, Western
- Chromosome Mapping
- Sequence Alignment
- Zebrafish/embryology
- Zebrafish/metabolism*
- Mutation/genetics
- Bone Morphogenetic Proteins/metabolism
- Zebrafish Proteins/genetics
- Zebrafish Proteins/metabolism*
- Phenotype*
- Body Patterning/physiology*
- PubMed
- 15753045 Full text @ Curr. Biol.
Citation
Kawakami, A., Nojima, Y., Toyoda, A., Takahoko, M., Satoh, M., Tanaka, H., Wada, H., Masai, I., Terasaki, H., Sakaki, Y., Takeda, H., and Okamoto, H. (2005) The zebrafish-secreted matrix protein you/scube2 is implicated in long-range regulation of hedgehog signaling. Current biology : CB. 15(5):480-488.
Abstract
The Hedgehog (Hh) signal plays a pivotal role in induction of ventral neuronal and muscle cell types around the midline during vertebrate development . We report that the gene disrupted in zebrafish you mutants, in which Hh signaling is impaired, encodes the secreted matrix protein Scube2. Consistently, epistasis analyses suggested that Scube2 functions upstream of Hh ligands or through a parallel pathway. In addition, overexpression analyses suggested that Scube2 is an essential, but a permissive, mediator of Hh signaling in zebrafish embryos. Surprisingly, the you gene is expressed in the dorsal neural tube, raising the possibility that Scube2 could indirectly act via a long-range regulator of Hh signaling. The dorsal Bmps have a long-range and opposing influence on Hh signaling . We show that neural plate patterning is affected in you mutants in a way that is consistent with the aberrant long-range action of a Bmp-dependent signal. We further show that Bmp activity can be attenuated by the coexpression of Scube2. Our data support the idea that Scube2 can modulate the long-range action of Bmp-dependent signaling in the neural tube and somites.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping