Glomerular ultrafiltration and apical tubular action of IGF-I, TGF-β, and HGF in nepbrotic syndrome

被引:36
作者
Wang, SN [1 ]
LaPage, J [1 ]
Hirschberg, R [1 ]
机构
[1] Univ Calif Los Angeles, Harbor Med Ctr, Div Nephrol, Torrance, CA 90509 USA
关键词
apical tubular receptors; tubulointerstitial nephritis; proteinuria; progressive renal disease;
D O I
10.1046/j.1523-1755.1999.00698.x
中图分类号
R5 [内科学]; R69 [泌尿科学(泌尿生殖系疾病)];
学科分类号
1002 ; 100201 ;
摘要
In nephrotic glomerulopathies, there is ultrafiltration of high molecular weight forms of insulin-like growth factor-I (IGF-I), hepatocyte growth factor (HGF), and transforming growth factor-beta (TGF-beta), which are bioactive in tubular fluid and act through apical tubular receptors. Experimental evidence indicates that ultrafiltered IGF-I, HGF, and TGF-beta may contribute to increased tubular phosphate and sodium absorption, synthesis of extracellular matrix proteins, and secretion of chemokines such as monocyte chemoattractant protein-1 (MCP-1). Through these mechanisms, glomerular proteinuria may contribute to tubulointerstitial pathobiology in nephrotic syndrome.
引用
收藏
页码:1247 / 1251
页数:5
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