期刊
NEPHRON
卷 91, 期 2, 页码 243-249出版社
KARGER
DOI: 10.1159/000058399
关键词
minimal-change nephrotic syndrome; IgA nephropathy; nephrotic syndrome; T cells; interleukin-17
Background/Aim:Interleukin (IL)-17 is a newly discovered cytokine that is secreted by activated memory CD4+T cells and modulated the early stage of immune response. To elucidate the pathophysiology of minimal-change nephrotic syndrome (MCNS), we focused on IL-17, which is one of the key factors in regulating an inflammatory response, and thus determined the daily excretion of IL-17 in urine. Methods: For this purpose, excretion levels of IL-17 were measured in the urine of patients with MCNS during relapse and remission using a highly sensitive sandwich enzyme-linked immunosorbent assay. The data obtained were compared with levels of daily urinary excretion of IL-17 in patients with IgA nephropathy (IgAN). A group of healthy subjects served as control. In both experimental groups urine levels of IL-17 excretion were plotted against their daily urinary protein excretion. Results:We demonstrated increased levels of IL-17 excretion in the urine of patients with MCNS and IgAN as compared to the non-nephrotic and healthy controls. In MCNS the daily urinary IL-17 (uIL-17) excretion was increased and returned to baseline with remission of the nephrotic syndrome (NS). We also demonstrated a positive correlation between urinary protein excretion and daily uIL-17 excretion. Conclusion: Taken together, these data indicate that uIL-17 excretion is increased during the NS, suggesting the possibility that daily uIL-17 excretion may reflect the disease activity of NS. Copyright (C) 2002 S. Karger AG, Basel.
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