PUBLICATION
Genetic control of single lumen formation in the zebrafish gut
- Authors
- Bagnat, M., Cheung, I.D., Mostov, K.E., and Stainier, D.Y.
- ID
- ZDB-PUB-070726-15
- Date
- 2007
- Source
- Nature cell biology 9(8): 954-960 (Journal)
- Registered Authors
- Bagnat, Michel, Stainier, Didier
- Keywords
- none
- MeSH Terms
-
- Animals
- Animals, Genetically Modified
- Cells, Cultured
- Claudins
- Hepatocyte Nuclear Factor 1-beta/genetics
- Hepatocyte Nuclear Factor 1-beta/metabolism*
- In Situ Hybridization
- Intestines*/abnormalities
- Intestines*/anatomy & histology
- Intestines*/embryology
- Ion Channels/metabolism
- Ion Transport/physiology
- Membrane Proteins/metabolism
- Molecular Sequence Data
- Morphogenesis*
- Sodium-Potassium-Exchanging ATPase/metabolism
- Zebrafish*/anatomy & histology
- Zebrafish*/embryology
- Zebrafish Proteins/genetics
- Zebrafish Proteins/metabolism*
- PubMed
- 17632505 Full text @ Nat. Cell Biol.
Citation
Bagnat, M., Cheung, I.D., Mostov, K.E., and Stainier, D.Y. (2007) Genetic control of single lumen formation in the zebrafish gut. Nature cell biology. 9(8):954-960.
Abstract
Most organs consist of networks of interconnected tubes that serve as conduits to transport fluid and cells and act as physiological barriers between compartments. Biological tubes are assembled through very diverse developmental processes that generate structures of different shapes and sizes. Nevertheless, all biological tubes invariably possess one single lumen. The mechanisms responsible for single lumen specification are not known. Here we show that zebrafish mutants for the MODY5 and familial GCKD gene tcf2 (also known as vhnf1) fail to specify a single lumen in their gut tube and instead develop multiple lumens. We show that Tcf2 controls single lumen formation by regulating claudin15 and Na(+)/K(+)-ATPase expression. Our in vivo and in vitro results indicate that Claudin15 functions in paracellular ion transport to specify single lumen formation. This work shows that single lumen formation is genetically controlled and appears to be driven by the accumulation of fluid.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping