Establishment and functional characterization of an in vitro model of the blood-brain barrier, comprising a co-culture of brain capillary endothelial cells and astrocytes

被引:248
作者
Gaillard, PJ [1 ]
Voorwinden, LH [1 ]
Nielsen, JL [1 ]
Ivanov, A [1 ]
Atsumi, R [1 ]
Engman, H [1 ]
Ringbom, C [1 ]
de Boer, AG [1 ]
Breimer, DD [1 ]
机构
[1] Leiden Univ, Leiden Amsterdam Ctr Drug Res, Dept Pharmacol, NL-2300 RA Leiden, Netherlands
关键词
blood-brain barrier; brain capillary endothelial cells; astrocytes; P-glycoprotein; trans-endothelial electrical resistance; in vitro;
D O I
10.1016/S0928-0987(00)00123-8
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Objective: The aim was to establish a flexible, abundantly available, reproducible and functionally characterized in vitro model of the blood-brain barrier (BBB). Methods: In a first step, bovine brain capillaries and newborn rat astrocytes were isolated. Subsequently, a co-culture of primary brain capillary endothelial cells (BCEC) on semi-permeable filter inserts, with astrocytes on the bottom of the filter was established. The cell material was characterized on the basis of specific cell-type properties and (functional expression of) specific BBB properties. Results: BCEC displayed: (1) characteristic endothelial cell morphology; (2) expression of endothelial cell markers (i.e., CD51, CD62P, CD71 and cadherin 5); (3) marginal F-actin localization; (4) tight junction formation between the cells; (5) expression of gamma -glutamyl-transpeptidase (gamma -GTP); (6) expression of P-glycoprotein (Pgp); (7) functional transendothelial transferrin transport and uptake; (8) restriction of paracellular transport; and (9) high transendothelial electrical resistance (TEER). Astrocytes displayed characteristic astrocyte morphology and expressed glial fibrillary acidic protein (GFAP). Co-culture with astrocytes increased TEER and decreased paracellular transport. In addition, expression of the glucocorticoid receptor (GR) was demonstrated in the endothelial cells of the BBB, while no expression of the mineralocorticoid receptor (MR) was found. Conclusions: A high quality and mass-production in vitro BBB model was established in which experiments with physiological (e.g., regulation of BBB permeability), pharmacological (e.g., pharmacokinetics and pharmacodynamics) and pathophysiological (e.g., disease influence on BBB permeability) objectives can be reproducibly performed. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:215 / 222
页数:8
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