Gene disruption discloses role of selenoprotein P in selenium delivery to target tissues

被引:311
作者
Schomburg, L
Schweizer, U
Holtmann, B
Flohé, L
Sendtner, M
Köhrle, J
机构
[1] Univ Berlin, Inst Expt Endokrinol, Klinikum Charite, D-10117 Berlin, Germany
[2] Univ Wurzburg, Neurol Klin, Inst Klin Neurobiol, D-97080 Wurzburg, Germany
[3] Abt Mol Innere Med, Med Poliklin, D-97070 Wurzburg, Germany
[4] Univ Berlin, Klinikum Charite, Neurowissensch Forschungszentrum, D-10117 Berlin, Germany
[5] Tech Univ Braunschweig, Inst Biochem, D-38124 Braunschweig, Germany
关键词
glutathione peroxidase; selenium transport; targeted gene disruption; thioredoxin reductase;
D O I
10.1042/BJ20021853
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
Selenoprotein P (SePP), the major selenoprotein in plasma, has been implicated in selenium transport, selenium detoxification or antioxidant defence. We generated SePP-knockout mice that were viable, but exhibited reduced growth and developed ataxia. Selenium content was elevated in liver, but low in plasma and other tissues, and selenoenzyme activities changed accordingly. Our data reveal that SePP plays a pivotal role in delivering hepatic selenium to target tissues.
引用
收藏
页码:397 / 402
页数:6
相关论文
共 35 条
[31]   Analysis of the mouse selenoprotein P gene [J].
Steinert, P ;
Bächner, D ;
Flohé, L .
BIOLOGICAL CHEMISTRY, 1998, 379 (06) :683-691
[32]   A comparative study on the hydroperoxide and thiol specificity of the glutathione peroxidase family and selenoprotein P [J].
Takebe, G ;
Yarimizu, J ;
Saito, Y ;
Hayashi, T ;
Nakamura, H ;
Yodoi, J ;
Nagasawa, S ;
Takahashi, K .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2002, 277 (43) :41254-41258
[33]  
Thanbichler M, 2002, METHOD ENZYMOL, V347, P3
[34]  
THOMPSON KM, 1995, J NUTR, V125, P864
[35]   Equimolar Hg-Se complex binds to selenoprotein P [J].
Yoneda, S ;
Suzuki, KT .
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 1997, 231 (01) :7-11