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首页> 外文期刊>Fluids and Barriers of the CNS >Expression and localization of claudins-3 and -12 in transformed human brain endothelium
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Expression and localization of claudins-3 and -12 in transformed human brain endothelium

机译:claudins-3和-12在转化的人脑内皮细胞中的表达和定位

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Background The aim of this study was to characterize the hCMEC/D3 cell line, an in vitro model of the human Blood Brain Barrier (BBB) for the expression of brain endothelial specific claudins-3 and -12. Findings hCMEC/D3 cells express claudins-3 and -12. Claudin-3 is distinctly localized to the TJ whereas claudin -12 is observed in the perinuclear region and completely absent from TJs. We show that the expression of both proteins is lost in cell passage numbers where the BBB properties are no longer fully conserved. Expression and localization of claudin-3 is not modulated by simvastatin shown to improve barrier function in vitro and also recommended for routine hCMEC/D3 culture. Conclusions These results support conservation of claudin-3 and -12 expression in the hCMEC/D3 cell line and make claudin-3 a potential marker for BBB characteristics in vitro.
机译:背景技术这项研究的目的是鉴定hCMEC / D3细胞系,这是人血脑屏障(BBB)的体外模型,用于表达脑内皮特异性claudins-3和-12。结果hCMEC / D3细胞表达claudins-3和-12。 Claudin-3明显位于TJ处,而claudin -12在核周区域中观察到,TJ完全不存在。我们显示这两种蛋白的表达在细胞传代数中丢失,其中BBB的特性不再完全保守。辛伐他汀不能调节claudin-3的表达和定位,辛伐他汀不能改善体外屏障功能,因此推荐用于常规hCMEC / D3培养。结论这些结果支持了hCMEC / D3细胞株中claudin-3和-12表达的保守性,并使claudin-3成为体外BBB特性的潜在标志物。

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