Molecular Moirai: Long Noncoding RNA Mediators of HSC Fate.

Molecular Moirai: Long Noncoding RNA Mediators of HSC Fate.
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DOI:
10.1007/s40778-018-0130-z
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发表时间:
2018-06
影响因子:
1.4
通讯作者:
Boldin MP
Boldin MP
中科院分区:
其他
文献类型:
--
作者:
Magilnick N;Boldin MP

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造血是一个有序的发育过程,需要动态调节,以保证对生理挑战的适当反应和预防恶性肿瘤。长的非编码RNA正在成为基因表达的关键的、多方面的调节因子。本文就lncRNAs在调节HSC内环境平衡和造血分化中的作用作一综述。多个lncRNAs参与维持HSC的干性,并使祖细胞能够执行正确的谱系分化程序。已经发现了调节多能祖细胞分化为终末分化血细胞的特异性lncRNAs。这些lncRNAs主要是通过增强或抑制特定基因组位点的转录来辅助驱动特定分化程序的主调控因子发挥作用。长的非编码RNA以时间和细胞依赖的方式协助转录程序的激活,从而有助于各种造血谱系的正确分化和成熟。
Hematopoiesis is an ordered developmental process that requires dynamic regulation to warrant proper response to physiological challenges and prevent malignancies. Long noncoding RNAs are emerging as key, multi-faceted regulators of gene expression. This review explores the function of lncRNAs in the control of HSC homeostasis and hematopoietic differentiation. Multiple lncRNAs have been implicated in maintaining HSC stemness and enabling progenitors to carry out the correct programs of lineage differentiation. Specific lncRNAs have been identified that regulate the differentiation of multipotent progenitors into terminally differentiated blood cells. These lncRNAs predominantly act by assisting master regulators that drive specific differentiation programs, either by enhancing or repressing the transcription of particular genomic loci. Long noncoding RNAs contribute to the correct differentiation and maturation of various hematopoietic lineages by assisting with the activation of transcriptional programs in a time- and cell-dependent manner.
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