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Relationship Between Tumor Necrosis Factor‐α Release and Granulocyte and Monocyte Adsorption to Cellulose Acetate Beads
Author(s) -
Nishise Shoichi,
Abe Yasuhiko,
Nomura Eiki,
Sato Takeshi,
Sasaki Yu,
Iwano Daisuke,
Yoshizawa Kazuya,
Yagi Makoto,
Nishise Yuko,
Ueno Yoshiyuki
Publication year - 2014
Publication title -
therapeutic apheresis and dialysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.415
H-Index - 53
eISSN - 1744-9987
pISSN - 1744-9979
DOI - 10.1111/1744-9987.12212
Subject(s) - tumor necrosis factor alpha , proinflammatory cytokine , monocyte , cytokine , medicine , granulocyte , adsorption , lipopolysaccharide , cellulose acetate , incubation , in vitro , immunology , apheresis , pharmacology , chemistry , biochemistry , inflammation , cellulose , platelet , organic chemistry
Tumor necrosis factor‐α, ( TNF )‐α, a proinflammatory cytokine, is produced by activated granulocytes and monocytes ( GMs ) and implicated as a major factor in inflammatory bowel disease ( IBD ) pathogenesis. Reduction of TNF ‐α should improve IBD pathology. GM adsorptive apheresis ( GMA ) is an effective therapy for inflammatory disorders including IBD . GM adsorption to cellulose acetate ( CA ) beads induces anti‐inflammatory cytokine release, although these effects on TNF ‐α release are not clarified. We hypothesized that GMA may inhibit TNF ‐α release. The aim of the present study was to clarify the effects of GM adsorption to CA beads on TNF ‐α release in vitro. Peripheral blood was incubated with and without CA beads and TNF ‐α was measured. For comparison, TNF ‐α was measured in another lipopolysaccharide ( LPS )‐containing peripheral blood sample incubated similarly. The amount of TNF ‐α in blood samples incubated with CA beads was significantly higher than in those incubated without beads, although it was significantly lower than TNF ‐α incubated with LPS ‐containing sample without beads. The amount of TNF ‐α after incubation with CA beads positively correlated with GM adsorption ratio. GM adsorption to CA beads induced a small amount of TNF ‐α release. This is the first report on TNF ‐α release induced via GM adsorption stimuli. The biological effects of TNF ‐α release during GM adsorption need to be clarified.