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Role of the microvascular endothelium in progressive renal disease Kang DH; Kanellis J; Hugo C; Truong L; Anderson S; Kerjaschki D; Schreiner GF; Johnson RJJ Am Soc Nephrol 2002[Mar]; 13 (3): 806-816The role of the vascular endothelium in progressive renal disease is not well understood. This review presents evidence that progressive renal disease is characterized by a progressive loss of the microvasculature. The loss of the microvasculature correlates directly with the development of glomerular and tubulointerstitial scarring. The mechanism is mediated in part by a reduction in the endothelial proliferative response, and this impairment in capillary repair is mediated by alteration in the local expression of both angiogenic (vascular endothelial growth factor) and antiangiogenic (thrombospondin 1) factors in the kidney. The alteration in balance of angiogenic growth factors is mediated by both macrophage-associated cytokines (interleukin-1beta) and vasoactive mediators. Finally, there is intriguing evidence that stimulation of angiogenesis and/or capillary repair may stabilize renal function and slow progression and that this benefit occurs independently of effects on BP or proteinuria. Therefore, angiogenic agents may represent a novel therapeutic approach for slowing the progression of renal disease.|Animals[MESH]|Disease Progression[MESH]|Endothelium, Vascular/*physiopathology[MESH]|Humans[MESH]|Ischemia/complications[MESH]|Kidney Diseases/etiology/*physiopathology[MESH]|Microcirculation[MESH]|Neovascularization, Physiologic[MESH]|Renal Circulation[MESH] |
