Holey barrier: claudins and the regulation of brain endothelial permeability

被引:80
作者
Matter, K [1 ]
Balda, MS [1 ]
机构
[1] UCL, Inst Ophthalmol, Div Cell Biol, London EC1V 9EL, England
基金
英国惠康基金;
关键词
blood-brain barrier; tight junction; paracellular permeability; occludin;
D O I
10.1083/jcb.200304039
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
Endothelial tight junctions (TJs)* are an important functional part of the blood-brain barrier (131313). In this issue, Nitta et al. (2003) demonstrate that claudin-5, a transmembrane protein of TJs, is a critical determinant of 131313 permeability in mice. Unexpectedly, knockout of claudin-5 did not result in a general breakdown of TJs but in a selective increase in paracellular permeability of small molecules. This suggests that the 131313 can be manipulated to allow selective diffusion of small molecules and makes claudin-5 a possible target for the development of drugs for this purpose.
引用
收藏
页码:459 / 460
页数:2
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