Involvement of Foxo transcription factors in angiogenesis and postnatal neovascularization.

ABSTRACT: Forkhead box O (Foxo) transcription factors are emerging as critical transcriptional integrators among pathways regulating differentiation, proliferation, and survival, yet the role of the distinct Foxo family members in angiogenic activity of endothelial cells and postnatal vessel formation has not been studied. Here, we show that Foxo1 and Foxo3a are the most abundant Foxo isoforms in mature endothelial cells and that overexpression of constitutively active Foxo1 or Foxo3a, but not Foxo4, significantly inhibits endothelial cell migration and tube formation in vitro. Silencing of either Foxo1 or Foxo3a gene expression led to a profound increase in the migratory and sprout-forming capacity of endothelial cells. Gene expression profiling showed that Foxo1 and Foxo3a specifically regulate a

SUBMITTER: Potente M 

PROVIDER: S-EPMC1184037 | biostudies-literature | 2005 Sep

REPOSITORIES: biostudies-literature