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Stimulated IFNγ and IL‐10 Secretion of Blood Mononuclear Cells in Patients on Renal Replacement Therapies Show Different Secretion Patterns
Author(s) -
Alscher Dominik Mark,
PauliMagnus Christiane,
Kuhlmann Ulrich,
Mettang Thomas
Publication year - 2000
Publication title -
artificial organs
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.684
H-Index - 76
eISSN - 1525-1594
pISSN - 0160-564X
DOI - 10.1046/j.1525-1594.2000.06648.x
Subject(s) - peripheral blood mononuclear cell , secretion , hemodialysis , stimulation , cytokine , renal replacement therapy , medicine , immune system , endocrinology , dialysis , transplantation , immunology , chemistry , in vitro , biochemistry
Infection is still a leading cause of morbidity and mortality in patients on renal replacement therapy (RRT). Although the role of the immune system is of great importance, little is known about the influence of the mode of RRT to the preferential excretions of regulator cytokines of mononuclear cells. Therefore, we investigated the stimulated IFNγ (Th1) and IL‐10 (Th2) secretions of mononuclear cells from patients on RRT. Blood was drawn from 10 controls, 15 patients on hemodialysis (HD), 15 on peritoneal dialysis (PD), and 10 after kidney transplantation (Tx). The cells were separated, and phytohemagglutinine (PHA) was added for stimulation. After 0, 6, and 24 h, IFNγ and IL‐10 (pg/ml) were measured by enzyme‐linked immunosorbent assay. IFNγ secretion was significantly enhanced 6 (p < 0.001) and 24 h (p = 0.002) after stimulation in all groups (in mean ± SEM). The analysis of the subgroups 6 h after adding PHA showed significant differences (p = 0.0239) with the lowest IFNγ in Tx (16 ± 5) and the highest in PD (79 ± 30). For IL‐10, secretion was enhanced in all groups 6 h after stimulation (p < 0.0116). The lowest secretions were seen in HD (18 ± 8) and controls (27 ± 9); the highest secretions were in Tx (98 ± 20) and PD (57 ± 12). The differences between HD and Tx (p < 0.01) and HD versus PD (p = 0.05) were significant. The stimulated cytokine secretion of blood mononuclear cells is preserved with RRT. The modes of RRT could influence the pattern of cytokine secretion. Surprisingly, the cells from patients on PD showed enhanced IL‐10 secretion compared to HD. Presumably, this is due to the chronic contact of peritoneal dialysis fluids with monocytes and the lymphatic system in PD.