ZFIN ID: ZDB-PUB-081008-10
Genome-Wide Analysis of the Zebrafish ETS Family Identifies Three Genes Required for Hemangioblast Differentiation or Angiogenesis
Liu, F., and Patient, R.
Date: 2008
Source: Circulation research   103(10): 1147-1154 (Journal)
Registered Authors: Liu, Feng, Patient, Roger K.
Keywords: zebrafish, gene duplication, ETS transcription factors, hemangioblast, angiogenesis
MeSH Terms:
  • Animals
  • Animals, Genetically Modified
  • Antigens, CD/biosynthesis
  • Antigens, CD/genetics
  • Cadherins/biosynthesis
  • Cadherins/genetics
  • Embryonic Development/physiology
  • Endothelial Cells/cytology
  • Endothelial Cells/metabolism
  • Ether-A-Go-Go Potassium Channels/biosynthesis*
  • Ether-A-Go-Go Potassium Channels/genetics
  • Gene Expression Profiling/methods
  • Gene Expression Regulation, Developmental/physiology*
  • Genome/physiology*
  • Hematopoiesis/physiology
  • Humans
  • Mice
  • Myeloid Progenitor Cells/cytology
  • Myeloid Progenitor Cells/metabolism*
  • Neovascularization, Physiologic/physiology*
  • Proto-Oncogene Proteins c-ets/genetics
  • Proto-Oncogene Proteins c-ets/metabolism*
  • Zebrafish/embryology*
  • Zebrafish/genetics
  • Zebrafish Proteins/biosynthesis*
  • Zebrafish Proteins/genetics
PubMed: 18832752 Full text @ Circ. Res.
ETS domain transcription factors have been linked to hematopoiesis, vasculogenesis, and angiogenesis. However, their biological functions and the mechanisms of action, remain incompletely understood. Here, we have performed a systematic analysis of zebrafish ETS domain genes and identified 31 in the genome. Detailed gene expression profiling revealed that 12 of them are expressed in blood and endothelial precursors during embryonic development. Combined with a phylogenetic tree assay, this suggests that some of the coexpressed genes may have redundant or additive functions in these cells. Loss-of-function analysis of 3 of them, erg, fli1, and etsrp, demonstrated that erg and fli1 act cooperatively and are required for angiogenesis possibly via direct regulation of an endothelial cell junction molecule, VE-cadherin, whereas etsrp is essential for primitive myeloid/endothelial progenitors (hemangioblasts) in zebrafish. Taken together, these results provide a global view of the ETS genes in the zebrafish genome during embryogenesis and provide new insights on the functions and biology of erg, fli1, and etsrp, which could be applicable to higher vertebrates, including mice and humans.