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2017 ; 545
(7653
): 224-228
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FGF-dependent metabolic control of vascular development
#MMPMID28467822
Yu P
; Wilhelm K
; Dubrac A
; Tung JK
; Alves TC
; Fang JS
; Xie Y
; Zhu J
; Chen Z
; De Smet F
; Zhang J
; Jin SW
; Sun L
; Sun H
; Kibbey RG
; Hirschi KK
; Hay N
; Carmeliet P
; Chittenden TW
; Eichmann A
; Potente M
; Simons M
Nature
2017[May]; 545
(7653
): 224-228
PMID28467822
show ga
Blood and lymphatic vasculatures are intimately involved in tissue oxygenation
and fluid homeostasis maintenance. Assembly of these vascular networks involves
sprouting, migration and proliferation of endothelial cells. Recent studies have
suggested that changes in cellular metabolism are important to these processes.
Although much is known about vascular endothelial growth factor (VEGF)-dependent
regulation of vascular development and metabolism, little is understood about the
role of fibroblast growth factors (FGFs) in this context. Here we identify FGF
receptor (FGFR) signalling as a critical regulator of vascular development. This
is achieved by FGF-dependent control of c-MYC (MYC) expression that, in turn,
regulates expression of the glycolytic enzyme hexokinase 2 (HK2). A decrease in
HK2 levels in the absence of FGF signalling inputs results in decreased
glycolysis, leading to impaired endothelial cell proliferation and migration.
Pan-endothelial- and lymphatic-specific Hk2 knockouts phenocopy blood and/or
lymphatic vascular defects seen in Fgfr1/Fgfr3 double mutant mice, while HK2
overexpression partly rescues the defects caused by suppression of FGF
signalling. Thus, FGF-dependent regulation of endothelial glycolysis is a pivotal
process in developmental and adult vascular growth and development.
|*Glycolysis
[MESH]
|*Neovascularization, Physiologic
[MESH]
|*Signal Transduction
[MESH]
|Animals
[MESH]
|Cell Movement
[MESH]
|Cell Proliferation
[MESH]
|Endothelial Cells/*cytology/*metabolism
[MESH]
|Female
[MESH]
|Fibroblast Growth Factors/*metabolism
[MESH]
|Hexokinase/metabolism
[MESH]
|Lymphangiogenesis
[MESH]
|Lymphatic Vessels/cytology/metabolism
[MESH]
|Mice
[MESH]
|Mice, Inbred C57BL
[MESH]
|Proto-Oncogene Proteins c-myc/metabolism
[MESH]
|Receptor, Fibroblast Growth Factor, Type 1/deficiency/genetics/metabolism
[MESH]