Control of vessel sprouting by genetic and metabolic determinants.
Vessel sprouting by endothelial cells (ECs) during angiogenesis relies on a navigating tip cell and on proliferating stalk cells that elongate the shaft. To date, only genetic signals have been shown to regulate vessel sprouting. However, emerging evidence indicates that the angiogenic switch also requires a metabolic switch. Indeed, angiogenic signals not only induce a change in EC metabolism but this metabolic adaptation also co-determines vessel sprouting. The glycolytic activator PFKFB3 regulates stalk cell proliferation and renders ECs more competitive to reach the tip. We discuss the emerging link between angiogenesis and EC metabolism during the various stages of vessel sprouting, focusing only on genetic signals for which an effect on EC metabolism has been documented.
Laboratory of Angiogenesis and Neurovascular Link, Vesalius Research Center, Vlaams Instituut voor Biotechnologie (VIB), Department of Oncology, Katholieke Universiteit Leuven (KU Leuven), Herestraat 49, 3000 Leuven, Belgium.
Guy
G
Eelen
Bert
B
Cruys
Jonathan
J
Welti
Katrien
K
De Bock
Peter
P
Carmeliet
D000818:Animals; D042783:Endothelial Cells / Q000166:cytology* / Q000378:metabolism*; D006019:Glycolysis / Q000235:genetics / Q000502:physiology; D006801:Humans; D018919:Neovascularization, Physiologic / Q000235:genetics / Q000502:physiology*; D025481:Phosphofructokinase-2 / Q000235:genetics / Q000378:metabolism
D025481:Phosphofructokinase-2
PFKFB3; angiogenesis; branching; filopodia; glycolysis; tip cell