Oxygen sensors and angiogenesis.
Local oxygen tension has a profound effect on the vasculature, which compensates vascular insufficiency through the induction of angiogenesis. An important mediator in this process is the hypoxia-inducible factor (HIF) complex, which is activated in hypoxic cells and increases transcription of a broad range of genes including angiogenic growth factors such as VEGF. HIF is primarily regulated through oxygen-dependent proteasomal destruction of the regulatory subunit, HIF-1 alpha or HIF-2 alpha...Expand abstract
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