Understanding selenoprotein function and regulation through the use of rodent models.

Understanding selenoprotein function and regulation through the use of rodent models.
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DOI:
10.1016/j.bbamcr.2012.02.018
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发表时间:
2012-09
影响因子:
5.1
通讯作者:
Gladyshev, Vadim N.
Gladyshev, Vadim N.
中科院分区:
生物学2区
文献类型:
--
作者:
Kasaikina, Marina V.;Hatfield, Dolph L.;Gladyshev, Vadim N.

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硒 (Se) 是一种必需的微量营养素。其生物学功能与硒蛋白有关,硒蛋白含有第 21 个氨基酸硒代半胱氨酸形式的微量元素。硒代半胱氨酸插入蛋白质的遗传缺陷与严重的健康问题有关。硒蛋白缺乏的后果更加多变,其中几种硒蛋白是必需的,而另一些则没有明显的表型。这些功能研究大部分受益于啮齿动物模型的使用和采用不同硒水平的饮食。本综述总结了通过这些模型获得的数据,重点关注具有个体硒蛋白靶向表达以及以全身或器官特异性方式去除个体、子集或所有硒蛋白的小鼠模型。
Selenium (Se) is an essential micronutrient. Its biological functions are associated with selenoproteins, which contain this trace element in the form of the 21st amino acid, selenocysteine. Genetic defects in selenocysteine insertion into proteins are associated with severe health issues. The consequences of selenoprotein deficiency are more variable, with several selenoproteins being essential, and several showing no clear phenotypes. Much of these functional studies benefited from the use of rodent models and diets employing variable levels of Se. This review summarizes the data obtained with these models, focusing on mouse models with targeted expression of individual selenoproteins and removal of individual, subsets or all selenoproteins in a systemic or organ-specific manner.
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