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体外细胞模型实验探讨钠钾氯...对血脑屏障渗透性的调控机制 张泽瀚.pdf
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文档介绍:网络首发时间:2022-05-13 17:02:08
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解放军医udied. Objective To investigate the regulatory mechanism of sodium
potassium chloride cotransporter on BBB permeability by in vitro model. Methods The BBB model was established in Transwell
chambers using bEnd3 mouse brain microvascular endothelial cells and BV2 mouse microglia. The BBB function was detected by
trans-epithelium electrical resistant (TEER) and fluorescein sodium permeation assay, the content of inflammasome NLRP3 protein
was detected by Western blot, the levels of IL-1β and MMP-9 were detected by ELISA, and the integrity of the tight junction protein
ZO-1 between vascular endothelial cells was assessed by immunofluorescence. Results The activation of microglia in inflammatory
environment could destroy the integrity of the blood-brain barrier model, reduce the TEER value, and increase the permeability of
the blood-brain barrier model (P< 0.05). In the co-culture model, the sodium-potassium-chloride symporter-specific inhibitor
significantly ameliorated the LPS-induced BBB damage (P<0.05), while this phenomenon was not observed in the BBB model
constructed by endothelial cell monoculture. The specific inhibitor of sodium potassium chlo