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Role of VEGF in kidney development, microvascular maintenance and pathophysiology of renal disease Kim BS; Goligorsky MSKorean J Intern Med 2003[Jun]; 18 (2): 65-75Vascular endothelial growth factor, VEGF, is essential for endothelial cell differentiation (vasculogenesis) and for the sprouting of new capillaries from preexisting vessels (angiogenesis). In addition, there is strong evidence that VEGF is a survival factor allowing the cells to survive and proliferate under conditions of extreme stress. Hypoxia is a key regulator of VEGF gene expression. Besides hypoxia, many cytokines, hormones and growth factors can up-regulate VEGF mRNA expression in various cell types. VEGF is present in the glomerulus of both the fetal and adult kidney. The VEGF produced by glomerular epithelial cell may be responsible for maintenance of the fenestrated phenotype of glomerular epithelial cells, thus facilitating the high rate of glomerular ultrafiltration. But there is little known about the role of VEGF in the tubule. VEGF is thought to be involved in many kinds of kidney diseases. Whereas VEGF has a beneficial role in the pathogenesis in some diseases, it does harmful action in others. Because VEGF is known to be associated with the pathogenesis of some diseases, such as diabetic nephropathy, renal tumor and polycystic kidney disease, the study about the role of VEGF is going to be a target for disease control. On the other hand, an attempt at enhancing the role of VEGF has to be made at diseases like several ARF models and experimental glomerulonephritis.|Animals[MESH]|Endothelial Growth Factors/genetics/*metabolism[MESH]|Gene Expression[MESH]|Humans[MESH]|Intercellular Signaling Peptides and Proteins/genetics/*metabolism[MESH]|Kidney Diseases/*metabolism/physiopathology[MESH]|Kidney Glomerulus/*metabolism[MESH]|Kidney Tubules/*metabolism[MESH]|Lymphokines/genetics/*metabolism[MESH]|Protein Isoforms/genetics/metabolism[MESH]|Receptors, Vascular Endothelial Growth Factor/metabolism[MESH]|Vascular Endothelial Growth Factor A[MESH]|Vascular Endothelial Growth Factors[MESH] |
