Disrupted erythropoietin signalling promotes obesity and alters hypothalamus proopiomelanocortin production.
Disrupted erythropoietin signalling promotes obesity and alters hypothalamus proopiomelanocortin production.
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DOI:
10.1038/ncomms1526
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发表时间:
2011-11-01
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
--
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While erythropoietin is the cytokine known that regulates erythropoiesis, erythropoietin receptor (EpoR) expression and associated activity beyond hematopoietic tissue remain uncertain. Here we show that mice with EpoR expression restricted to hematopoietic tissues (Tg) develop obesity and insulin resistance. Tg-mice exhibit a decrease in energy expenditure and an increase in white fat mass and adipocyte number. Conversely, erythropoietin treatment of wild-type mice increases energy expenditure and reduces food intake and fat mass accumulation but showed no effect in body weight of Tg-mice. EpoR is expressed at a high level in white adipose tissue and in the proopiomelanocortin neurons of the hypothalamus. While Epo treatment in wild-type mice induces the expression of the polypeptide hormone precursor gene, proopiomelanocortin, mice lacking EpoR show reduced levels of proopiomelanocortin in the hypothalamus. This study provides the first evidence that mice lacking EpoR in nonhematopoietic tissue become obese and insulin resistant with loss of erythropoietin regulation of energy homeostasis.
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影响因子:
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影响因子:
29
作者:
Ellacott KL;Morton GJ;Woods SC;Tso P;Schwartz MW
通讯作者:
Schwartz MW
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Hamilton, Marc T.;Hamilton, Deborah G.;Zderic, Theodore W.
通讯作者:
Zderic, Theodore W.
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Brewer, Gregory J.;Torricelli, John R.
通讯作者:
Torricelli, John R.
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作者:
Nanbu-Wakao, R;Morikawa, Y;Wakao, H
通讯作者:
Wakao, H