INCREASE OF TUMOR-NECROSIS-FACTOR-ALPHA SYNTHESIS AND GENE-EXPRESSION IN PERIPHERAL-BLOOD MONONUCLEAR-CELLS OF CHILDREN WITH IDIOPATHIC NEPHROTIC SYNDROME

被引:71
作者
BUSTOS, C
GONZALEZ, E
MULEY, R
ALONSO, JL
EGIDO, J
机构
[1] UNIV AUTONOMA MADRID, FDN JIMENEZ DIAZ, DIV NEPHROL, E-28040 MADRID, SPAIN
[2] HOSP 12 OCTUBRE, DIV PEDIAT NEPHROL, MADRID, SPAIN
关键词
CYCLOSPORINE; CYTOKINES; NEPHROTIC SYNDROME;
D O I
10.1111/j.1365-2362.1994.tb02022.x
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The pathogenesis of idiopathic nephrotic syndrome (minimal change nephropathy and its variants) is not completely understood. In recent years it has been speculated that a cytokine released by circulating blood mononuclear cells could alter the permeability of the glomerular capillary wall. In this study we have explored the potential participation of tumour necrosis factor alpha (TNF alpha), a cytokine mainly produced by monocytes, in 25 children with idiopathic nephrotic syndrome. TNF alpha was determined by cytotoxicity bioassay in the L-929 cell line and by double antibody/RIA. Patients in activity had higher serum TNF alpha levels and TNF alpha production by monocytes than patients in remission and controls. TNF alpha mRNA expression in blood mononuclear cells was analysed by Northern blot. The TNF alpha mRNA levels in patients in activity were increased compared to controls and to patients in remission. No significant differences in IL-1 beta and IL-6 synthesis were found between patients and controls. Our results suggest that TNF alpha, but not other cytokines such as IL-1 beta and IL-6, could play a role in the pathogenesis of the proteinuria in idiopathic nephrotic syndrome.
引用
收藏
页码:799 / 805
页数:7
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