Disruption of the taurine transporter gene (taut) leads to retinal degeneration in mice

被引:189
作者
Heller-Stilb, B
van Roeyen, C
Rascher, K
Hartwig, HG
Huth, A
Seeliger, MW
Warskulat, U
Häussinger, D
机构
[1] Univ Dusseldorf, Dept Gastroenterol Hepatol & Infectiol, D-40225 Dusseldorf, Germany
[2] Univ Dusseldorf, Dept Anat, D-4000 Dusseldorf, Germany
[3] Univ Tubingen, Dept Ophthalmol, Retinal Electrodiagnost Res Grp, D-72074 Tubingen, Germany
关键词
knockout mice; compatible organic osmolytes; retinitis pigmentosa;
D O I
10.1096/fj.01-0691fje
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Taurine is involved in cell volume homeostasis, antioxidant defense, protein stabilization, and stress responses. High levels of intracellular taurine are maintained by a Na+-dependent taurine transporter (TAUT) in the plasma membrane. In view of the immunomodulatory and cytoprotective effects of taurine, a mouse model with a disrupted gene coding for the taurine transporter (taut-/- mice) was generated. These mice show markedly decreased taurine levels in a variety of tissues, a reduced fertility, and loss of vision due to severe retinal degeneration. In particular, the retinal involvement identifies the taurine transporter as an important factor for the development and maintenance of normal retinal functions and morphology.
引用
收藏
页码:231 / +
页数:18
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