Looking chloride channels straight in the eye: Bestrophins, lipofuscinosis, and retinal degeneration

被引:76
作者
Hartzell, C [1 ]
Qu, ZQ [1 ]
Putzier, I [1 ]
Artinian, L [1 ]
Chien, LT [1 ]
Cui, YY [1 ]
机构
[1] Emory Univ, Sch Med, Dept Cell Biol, Ctr Neurodegenerat Dis, Atlanta, GA 30322 USA
关键词
D O I
10.1152/physiol.00021.2005
中图分类号
Q4 [生理学];
学科分类号
071003 ;
摘要
Recent evidence suggests that Cl- ion channels are important for retinal integrity. Bestrophin Cl- channel mutations in humans are genetically linked to a juvenile form of macular degeneration, and disruption of some ClC Cl- channels in mice leads to retinal degeneration. In both cases, accumulation of lipofuscin pigment is a key feature of the cellular degeneration. Because Cl- channels regulate the ionic environment inside organelles in the endosomal-lysosomal pathway, retinal degeneration may result from defects in lysosomal trafficking or function.
引用
收藏
页码:292 / 302
页数:11
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