Id transcriptional regulators in adipogenesis and adipose tissue metabolism.

Id transcriptional regulators in adipogenesis and adipose tissue metabolism.
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DOI:
10.2741/4289
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发表时间:
2014-06-01
期刊:
Frontiers in bioscience (Landmark edition)
影响因子:
--
通讯作者:
Satyanarayana A
Satyanarayana A
中科院分区:
其他
文献类型:
--
作者:
Patil M;Sharma BK;Satyanarayana A

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Id蛋白(Id 1-Id 4)是螺旋-环-螺旋(helix-loop-helix,HLH)转录调节因子,缺乏基本的DNA结合结构域。它们通过形成异源二聚体作为碱性螺旋环-螺旋(bHLH)转录因子的负调节因子,并抑制其DNA结合和转录活性。Id蛋白参与多种细胞机制的调节,如细胞增殖、细胞分化、细胞命运决定、血管生成和肿瘤发生。最近的一些研究也揭示了Id蛋白在脂肪细胞分化和脂肪组织代谢中具有重要的功能。本文综述了Id蛋白在脂肪组织分化和代谢中的作用。除了回顾已知的作用机制外,我们还讨论了Id蛋白可能参与调节脂肪形成和代谢途径的其他机制。
Id proteins (Id1-Id4) are helix-loop-helix (HLH) transcriptional regulators that lack a basic DNA binding domain. They act as negative regulators of basic helixloop-helix (bHLH) transcription factors by forming heterodimers and inhibit their DNA binding and transcriptional activity. Id proteins are implicated in the regulation of various cellular mechanisms such as cell proliferation, cellular differentiation, cell fate determination, angiogenesis and tumorigenesis. A handful of recent studies also disclosed that Id proteins have critical functions in adipocyte differentiation and adipose tissue metabolism. Here, we reviewed the progress made thus far in understanding the specific functions of Id proteins in adipose tissue differentiation and metabolism. In addition to reviewing the known mechanisms of action, we also discuss possible additional mechanisms in which Id proteins might participate in regulating adipogenic and metabolic pathways.
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