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- W2287462023 abstract "To explore the general requirement of endothelial mTORC2 during embryonic and adolescent development, we knocked out the essential mTORC2 component Rictor in the mouse endothelium in the embryo, during adolescence and in endothelial cells in vitro. During embryonic development, Rictor knockout resulted in growth retardation and lethality around embryonic day 12. We detected reduced peripheral vascularization and delayed ossification of developing fingers, toes and vertebrae during this confined midgestational period. Rictor knockout did not affect viability, weight gain, and vascular development during further adolescence. However during this period, Rictor knockout prevented skin capillaries to gain larger and heterogeneously sized diameters and remodeling into tortuous vessels in response to FGF2. Rictor knockout strongly reduced extensive FGF2-induced neovascularization and prevented hemorrhage in FGF2-loaded matrigel plugs. Rictor knockout also disabled the formation of capillary-like networks by FGF2-stimulated mouse aortic endothelial cells in vitro. Low RICTOR expression was detected in quiescent, confluent mouse aortic endothelial cells, whereas high doses of FGF2 induced high RICTOR expression that was associated with strong mTORC2-specific protein kinase Cα and AKT phosphorylation. We demonstrate that the endothelial FGF-RICTOR axis is not required during endothelial quiescence, but crucial for midgestational development and sustained and extensive neovascularization in the adult." @default.
- W2287462023 created "2016-06-24" @default.
- W2287462023 creator A5001601302 @default.
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- W2287462023 creator A5029560607 @default.
- W2287462023 date "2015-12-04" @default.
- W2287462023 modified "2023-10-13" @default.
- W2287462023 title "Endothelial Rictor is crucial for midgestational development and sustained and extensive FGF2-induced neovascularization in the adult" @default.
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- W2287462023 doi "https://doi.org/10.1038/srep17705" @default.
- W2287462023 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4669526" @default.
- W2287462023 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/26635098" @default.