The role of translation initiation regulation in haematopoiesis.

The role of translation initiation regulation in haematopoiesis.
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DOI:
10.1155/2012/576540
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发表时间:
2012
影响因子:
--
通讯作者:
von Lindern M
von Lindern M
中科院分区:
其他
文献类型:
--
作者:
Grech G;von Lindern M

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RNA组织成响应于外在和内在因素而翻译的功能亚组强调了相对未探索的基因表达调节,其以与转录因子调节转录组相同的方式驱动细胞命运。最近的研究炎症反应和血液疾病的分子机制清楚地表明,在翻译起始,mRNA的稳定性,和蛋白质异构体合成水平的mRNA翻译的调节涉及基因表达的严格调节。本文概述了这些转录后控制机制,包括翻译起始因子水平的控制和RNA结合蛋白的作用,如何影响造血。这些机制在血液系统疾病中的临床相关性清楚地表明了潜在的治疗意义和对允许在翻译控制水平上进行测量的分子工具的需求。尽管miRNAs在翻译控制中的重要性已被广泛认可和研究,但本文将排除对这种控制水平的详细描述。
Organisation of RNAs into functional subgroups that are translated in response to extrinsic and intrinsic factors underlines a relatively unexplored gene expression modulation that drives cell fate in the same manner as regulation of the transcriptome by transcription factors. Recent studies on the molecular mechanisms of inflammatory responses and haematological disorders indicate clearly that the regulation of mRNA translation at the level of translation initiation, mRNA stability, and protein isoform synthesis is implicated in the tight regulation of gene expression. This paper outlines how these posttranscriptional control mechanisms, including control at the level of translation initiation factors and the role of RNA binding proteins, affect hematopoiesis. The clinical relevance of these mechanisms in haematological disorders indicates clearly the potential therapeutic implications and the need of molecular tools that allow measurement at the level of translational control. Although the importance of miRNAs in translation control is well recognised and studied extensively, this paper will exclude detailed account of this level of control.
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