Thyroid hormone regulates the obesity gene tub
Thyroid hormone regulates the obesity gene tub
复制标题
DOI：
10.1093/embo-reports/kve107
复制
发表时间：
2001-06-01
期刊：
影响因子：
7.7
通讯作者：
Zenke, M
中科院分区：
文献类型：
--
作者：
Kortischoner, NP;Alvarez-Dolado, M;Zenke, M
Thyroid hormone T3/T4 is a major regulator of energy metabolism in vertebrates, and defects in thyroid status are frequently associated with changes in body weight. It is demonstrated here that thyroid hormone regulates in vivo and in vitro the tub gene, which when mutated in tubby mice causes obesity, insulin resistance and sensory deficits. Hypothyroidism in rats altered tub mRNA and protein in discrete brain areas. These changes could be attributed to thyroid hormone deficiency since T3/T4 treatment restored normal tub expression. T3 also upregulated tub mRNA within 4-6 h in neuronal cells in culture, suggesting that T3 is a positive regulator of tub gene expression. Thus, these results establish a novel pathway of T3 action and provide an important molecular link between thyroid status and the tubby-associated syndrome.
