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Yu, Shifang; Deng, Gang; Li, Qiang; Liao, Zhaoping; Yu, Lu; Zhao, Xiaoying
Transfusion and apheresis science, 08/2024, Volume: 63, Issue: 4Journal Article
Blood transfusion in critically ill individuals such as sepsis was associated with higher morbidity and mortality. During storage, various bioactive substances accumulated, may exacerbate the initial immunosuppressive reaction in severely ill patients. The objective of this study is to explore how resin adsorption impacts the accumulation of cytokines and the presence of extracellular microvesicles (EVs) in whole blood. Through comparative analysis and screening, amberchrom CG 300 C was chosen to assess the adsorption efficiency and evaluate the quality of whole blood after adsorption. Subsequently, the supernatants from both the unadsorpted (UA) and adsorpted (A) groups were co-cultured with peripheral blood mononuclear cells (PBMCs) to assess their effects on cellular growth and cytokine concentrations. The findings of our study revealed that resin adsorption effectively eradicated most bioactive components in conserved blood, including IL-8, TGF-β, sCD40L, sFasL, without affecting the quality of the blood. Furthermore, scanning electron microscopy (SEM) revealed a reduction in extracellular microvesicles following adsorption. Compared to UA, A 's supernatant markedly enhanced PBMC growth (p < 0.01). Additionally, the A's supernatant markedly diminished the emission of pro-inflammatory cytokines, like IL-6. The research revealed that adsorbing resin effectively reduced bioactive substances from preserved whole blood, and did not impact red blood cell quality, proving to be a reliable method for extracting bioactive substances from storage blood. The results could pave the way for creating innovative blood bags and hold clinical significance in lowering the frequency of TRIM among patients who have undergone transfusions.
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