title: In vitro production of interleukin-1 receptor antagonist in chronic renal failure, CAPD and HD.
abstract: Dialysis-related symptoms are believed to be mediated, at least in part, by monocyte/macrophage-derived pro-inflammatory cytokines including interleukin-1 (IL-1) and tumor necrosis factor (TNF). Measuring the production of interleukin-1 receptor antagonist (IL-Ra), a naturally occurring inhibitor of IL-1, opens avenues to study the balance between these two cytokines in patients. We studied the cell content and production of IL-1 beta and IL-Ra by unstimulated and endotoxin- or IgG-stimulated peripheral blood mononuclear cells (PBMC) in undialyzed patients with chronic renal failure (CRF), patients on continuous ambulatory peritoneal dialysis (CAPD) and patients on chronic hemodialysis with reuse cuprophan membranes (HD), and compared them to healthy controls. IL-1 beta and IL-Ra were measured by specific radioimmunoassay. IL-1 beta was undetectable in freshly harvested PBMC from healthy controls, CRF, CAPD or HD. In contrast, the content of IL-Ra in HD patients (2828 +/- 466 pg/ml) was significantly higher than that in healthy controls (643 +/- 53 pg/ml, P < 0.01), CRF (1097 +/- 320 pg/ml, P < 0.01) or CAPD (1398 +/- 390 pg/ml, P < 0.05). In endotoxin-stimulated PBMC, IL-1 beta production by HD patients (9375 +/- 1687 pg/ml) was not significantly different from healthy controls (8429 +/- 1621 pg/ml). However, endotoxin-stimulated IL-Ra production by HD patients (32,350 +/- 8276 pg/ml) was greater than that from healthy controls (11,284 +/- 1250 pg/ml, P < 0.001), CRF (12,263 +/- 2680 pg/ml, P < 0.01) or CAPD patients (11,822 +/- 1797 pg/ml, P < 0.01).(ABSTRACT TRUNCATED AT 250 WORDS)
authors: Department of Medicine, New England Medical Center Hospitals, Boston, Massachusetts.
authors: B J
authors: BJ
authors: Pereira
authors: D D
authors: DD
authors: Poutsiaka
authors: A J
authors: AJ
authors: King
authors: J A
authors: JA
authors: Strom
authors: G
authors: G
authors: Narayan
authors: A S
authors: AS
authors: Levey
authors: C A
authors: CA
authors: Dinarello
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004731:Endotoxins / Q000633:toxicity; D006801:Humans; D007074:Immunoglobulin G / Q000008:administration & dosage; D066298:In Vitro Techniques; D053590:Interleukin 1 Receptor Antagonist Protein; D007375:Interleukin-1 / Q000097:blood; D007676:Kidney Failure, Chronic / Q000097:blood / Q000276:immunology* / Q000628:therapy; D007963:Leukocytes, Mononuclear / Q000276:immunology / Q000378:metabolism; D008875:Middle Aged; D010531:Peritoneal Dialysis, Continuous Ambulatory / Q000009:adverse effects; D017472:Receptors, Interleukin-1 / Q000037:antagonists & inhibitors*; D006435:Renal Dialysis / Q000009:adverse effects; D012795:Sialoglycoproteins / Q000096:biosynthesis* / Q000097:blood
chemical_list: D004731:Endotoxins; C507763:IL1RN protein, human; D007074:Immunoglobulin G; D053590:Interleukin 1 Receptor Antagonist Protein; D007375:Interleukin-1; D017472:Receptors, Interleukin-1; D012795:Sialoglycoproteins