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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Nat+Cell+Biol
2017 ; 19
(6
): 639-652
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gab.com Text
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English Wikipedia
Endoglin prevents vascular malformation by regulating flow-induced cell migration
and specification through VEGFR2 signalling
#MMPMID28530660
Jin Y
; Muhl L
; Burmakin M
; Wang Y
; Duchez AC
; Betsholtz C
; Arthur HM
; Jakobsson L
Nat Cell Biol
2017[Jun]; 19
(6
): 639-652
PMID28530660
show ga
Loss-of-function (LOF) mutations in the endothelial cell (EC)-enriched gene
endoglin (ENG) cause the human disease hereditary haemorrhagic telangiectasia-1,
characterized by vascular malformations promoted by vascular endothelial growth
factor A (VEGFA). How ENG deficiency alters EC behaviour to trigger these
anomalies is not understood. Mosaic ENG deletion in the postnatal mouse rendered
Eng LOF ECs insensitive to flow-mediated venous to arterial migration. Eng LOF
ECs retained within arterioles acquired venous characteristics and secondary
ENG-independent proliferation resulting in arteriovenous malformation (AVM).
Analysis following simultaneous Eng LOF and overexpression (OE) revealed that ENG
OE ECs dominate tip-cell positions and home preferentially to arteries. ENG
knockdown altered VEGFA-mediated VEGFR2 kinetics and promoted AKT signalling.
Blockage of PI(3)K/AKT partly normalized flow-directed migration of ENG LOF ECs
in vitro and reduced the severity of AVM in vivo. This demonstrates the
requirement of ENG in flow-mediated migration and modulation of VEGFR2 signalling
in vascular patterning.
|*Neovascularization, Pathologic
[MESH]
|*Neovascularization, Physiologic
[MESH]
|*Signal Transduction
[MESH]
|Animals
[MESH]
|Arteriovenous Malformations/genetics/metabolism/pathology/*prevention & control
[MESH]
|Cell Lineage
[MESH]
|Cell Proliferation
[MESH]
|Cells, Cultured
[MESH]
|Disease Models, Animal
[MESH]
|Endoglin/deficiency/genetics/*metabolism
[MESH]
|Endothelial Cells/*metabolism/pathology
[MESH]
|Genetic Predisposition to Disease
[MESH]
|Humans
[MESH]
|Kinetics
[MESH]
|Mice, Knockout
[MESH]
|Phenotype
[MESH]
|Phosphatidylinositol 3-Kinase/metabolism
[MESH]
|Proto-Oncogene Proteins c-akt/metabolism
[MESH]
|RNA Interference
[MESH]
|Stress, Mechanical
[MESH]
|Telangiectasia, Hereditary Hemorrhagic/genetics/metabolism/pathology/*prevention
& control
[MESH]