Physico-chemical factors influencing autologous conditioned serum purification.
2014
Abstract Autologous conditioned serum (ACS) is a recent biotherapy based on certain cytokines anti-inflammatory properties mainly used for the reduction of osteoarthritis (OA) symptoms. Here we investigated different physico-chemical factors influencing ACS purification and cytokine production. Human venous blood was incubated in the presence of different diameter beads (respectively 2.5, 3, 3.5, and 4 mm) or glass beads with different types of coating (polished or coated with CrSO4). Sera were recovered, and the concentrations of pro-inflammatory and anti-inflammatory relevant cytokines were measured using Luminex® technology. Fresh whole blood incubated for 24 h highly increased production of interleukin (IL)-6 and IL-8 cytokines. At the same time, the concentrations of IL-1β, IL-1 receptor agonist (IL-1Ra), IL-10, and tumor necrosis factor (TNF)-α were slightly induced. The highest cytokine concentrations were obtained with the exposure of whole blood to 3-mm glass beads and 3.5-mm polished beads. The ...
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