PUBLICATION
The yolk syncytial layer regulates myocardial migration by influencing extracellular matrix assembly in zebrafish
- Authors
- Sakaguchi, T., Kikuchi, Y., Kuroiwa, A., Takeda, H., and Stainier, D.Y.
- ID
- ZDB-PUB-061010-11
- Date
- 2006
- Source
- Development (Cambridge, England) 133(20): 4063-4072 (Journal)
- Registered Authors
- Kikuchi, Yutaka, Sakaguchi, Takuya, Stainier, Didier, Takeda, Hiroyuki
- Keywords
- Myocardial migration, mtx1 (mxtx1), Yolk syncytial layer (YSL), fibronectin, natter, Zebrafish
- MeSH Terms
-
- Animals
- Body Patterning/drug effects
- Body Patterning/genetics*
- Cell Movement/genetics
- Embryo, Nonmammalian/chemistry
- Embryo, Nonmammalian/drug effects
- Embryo, Nonmammalian/metabolism
- Endoderm/cytology
- Endoderm/physiology
- Fibronectins/analysis
- Fibronectins/genetics
- Gene Expression Regulation, Developmental*
- Heart/embryology*
- Membrane Proteins/antagonists & inhibitors
- Membrane Proteins/genetics
- Membrane Proteins/physiology*
- Myocardium/chemistry
- Myocardium/cytology
- Myocytes, Cardiac/chemistry
- Myocytes, Cardiac/cytology
- Myocytes, Cardiac/physiology*
- Oligonucleotides, Antisense/pharmacology
- Yolk Sac/chemistry
- Yolk Sac/metabolism
- Zebrafish/embryology*
- Zebrafish/immunology
- Zebrafish Proteins/antagonists & inhibitors
- Zebrafish Proteins/genetics
- Zebrafish Proteins/physiology*
- PubMed
- 17008449 Full text @ Development
Citation
Sakaguchi, T., Kikuchi, Y., Kuroiwa, A., Takeda, H., and Stainier, D.Y. (2006) The yolk syncytial layer regulates myocardial migration by influencing extracellular matrix assembly in zebrafish. Development (Cambridge, England). 133(20):4063-4072.
Abstract
The roles of extra-embryonic tissues in early vertebrate body patterning have been extensively studied, yet we know little about their function during later developmental events. Here, we analyze the function of the zebrafish extra-embryonic yolk syncytial layer (YSL) specific transcription factor, Mtx1, and find that it plays an essential role in myocardial migration. Downregulating the function of Mtx1 in the YSL leads to cardia bifida, a phenotype in which the myocardial cells fail to migrate to the midline. Mtx1 in the extra-embryonic YSL appears to regulate the embryonic expression of fibronectin, a gene previously implicated in myocardial migration. We further show dosage-sensitive genetic interactions between mtx1 and fibronectin. Based on these data, we propose that the extra-embryonic YSL regulates myocardial migration, at least in part by influencing fibronectin expression and subsequent assembly of the extracellular matrix in embryonic tissues.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping