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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
Vascular endothelial growth factor (VEGF), also known as vascular permeability factor (VPF), is a key mediator of angiogenesis for both physiological and pathological conditions. It is well established that the hypoxic induction of VPF/VEGF is in large part an increase in the stability of its mRNA. A Hu family ubiquitously expressed RNA-binding protein HuR has recently been shown to be important for VPF/VEGF mRNA stabilization. In renal cancer cells, the inactivation of the tumor suppressor protein von Hippel Lindau (VHL) leads to an increase in VPF/VEGF expression. VHL not only inhibits the transcription of VPF/VEGF but also plays a significant role in decreasing its mRNA stability. Here we delineate a possible mechanism by which VHL can control the function of HuR in order to regulate the stability of VPF/VEGF mRNA. The experiments presented here suggest that the association of the elongin-binding domain of VHL with a specific RNA- binding domain of HuR (RRM1) is important for the destabilizing function of VHL on VPF/VEGF mRNA.[1]
