Abstract
Interleukin (IL)-23, which is released by activated monocytes and neutrophils, promotes production of high levels of IL-17 by T-helper 17 cells. Cellulose acetate (CA) beads are used as carriers for granulocyte and monocyte (GM) adsorptive apheresis using Adacolumn. Contact between blood and CA beads induces cytokine release; however, their inflammatory effects on IL-23 release are unclear. We aimed to clarify the effect of CA beads on IL-23 release in vitro. We incubated peripheral blood with and without CA beads and measured IL-23. Compared to blood samples incubated without CA beads, blood samples incubated with CA beads had significantly decreased amounts of IL-23. In conclusion, CA beads inhibited IL-23 release from adsorbed GMs. The biological effects of this decrease in IL-23 release during GM adsorption to CA beads need further clarification.
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