PYRUVATE NEUTRALIZES PERITONEAL DIALYSATE CYTOTOXICITY - MAINTAINED INTEGRITY AND PROLIFERATION OF CULTURED HUMAN MESOTHELIAL CELLS

被引:40
|
作者
BRUNKHORST, R
MAHIOUT, A
机构
[1] Division of Nephrology, Hannover Medical School, Hannover
[2] Division of Nephrology, Medical School Hannover, 30625 Hannover
关键词
D O I
10.1038/ki.1995.282
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
Toxic effects of commercially available peritoneal dialysate (PD) fluid include damage to mesothelial cells (MC), causing a severely disturbed proliferation of cultured MC. We investigated the injury to the cell membrane (by release of lactate dehydrogenase, LDH), the proliferation (by cell counts and by H-3-thymidine incorporation), and optional the cytokine generation (by IL-1 receptor-antagonist production, IL-1 ra) of cultured human MC during the 48 hours after a 30 minute exposure to PD containing either 35 mmol/liter sodium lactate or sodium pyruvate. All solutions had a pH of 5.2 to 5.6 and were composed as standard PD. Glucose contents of 1.36 and 3.86 mmol/liter were tested. After exposure to the lactate-PD containing 1.36% glucose, LDH activity was increased by more than 30%, proliferation of MC was inhibited by more than 30%, and IL-1 ra production was reduced significantly when compared to pyruvate-PD and the control solution. After preincubation with 3.86% glucose containing PD, all negative effects became even more pronounced in the lactate group whereas the MC maintained their integrity, rate of proliferation and IL-1 ra release after pre-exposure to pyruvate containing PD. These results suggest that the acute toxic effects of commercially available PD on the integrity, proliferation and IL-1 ra production of MC can be avoided by the use of sodium pyruvate instead of sodium lactate.
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收藏
页码:177 / 181
页数:5
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