Programming of adipose tissue miR-483-3p and GDF-3 expression by maternal diet in type 2 diabetes.
Programming of adipose tissue miR-483-3p and GDF-3 expression by maternal diet in type 2 diabetes.
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DOI:
10.1038/cdd.2011.183
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发表时间:
2012-06
影响因子:
12.4
通讯作者:
中科院分区:
文献类型:
--
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Nutrition during early mammalian development permanently influences health of the adult, including increasing the risk of type 2 diabetes and coronary heart disease. However, the molecular mechanisms underlying such programming are poorly defined. Here we demonstrate that programmed changes in miRNA expression link early-life nutrition to long-term health. Specifically, we show that miR-483-3p is upregulated in adipose tissue from low-birth-weight adult humans and prediabetic adult rats exposed to suboptimal nutrition in early life. We demonstrate that manipulation of miR-483-3p levels in vitro substantially modulates the capacity of adipocytes to differentiate and store lipids. We show that some of these effects are mediated by translational repression of growth/differentiation factor-3, a target of miR-483-3p. We propose that increased miR-483-3p expression in vivo, programmed by early-life nutrition, limits storage of lipids in adipose tissue, causing lipotoxicity and insulin resistance and thus increasing susceptibility to metabolic disease.
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