The angiopoietin‐2 gene of endothelial cells is up‐regulated in hypoxia by a HIF binding site located in its first intron and by the central factors GATA‐2 and Ets‐1

Abstract excerpt

Angiopoietins are ligands of the endothelial cell tyrosine kinase receptor Tie2. Angiopoietin-1 (Ang-1) is widely expressed in human normal adult tissues and promotes blood vessel maturation and stabilization by inducing Tie2 receptor phosphorylation. In contrast, the antagonistic ligand Angiopoietin-2 (Ang-2) is up-regulated by hypoxia, expressed only at sites of vascular remodeling and plays a crucial role in...

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