Discovery of a Novel Long Noncoding RNA Lx8-SINE B2 as a Marker of Pluripotency.

Discovery of a Novel Long Noncoding RNA Lx8-SINE B2 as a Marker of Pluripotency.
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发现一种新型长非编码 RNA Lx8-SINE B2 作为多能性标记

DOI:
10.1155/2021/6657597
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发表时间:
2021
影响因子:
4.3
通讯作者:
Lu X
Lu X
中科院分区:
医学3区
文献类型:
--
作者:
Chen F;Zhang M;Feng X;Li X;Sun H;Lu X

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胚胎干细胞的多能性和自我更新是由核心转录调控因子如Oct4、Sox2和Nanog等标记的。多能性的另一个重要标志是长的非编码RNA(LncRNA)。在这里,我们发现一个新的长非编码RNA(LncRNA)Lx8-sineB2是一个多能性的标记。LncRNALx8-Sine B2在ESCs中表达丰富,在ESCs分化过程中表达下调。通过cDNA末端的快速扩增,我们获得了lncRNA Lx8-Sine B2的全长序列。我们进一步证明了位于lncRNA Lx8-ine B2上游的转座元件可以驱动lncRNA Lx8-ine B2的表达。此外,Oct4和Sox2还驱动了lncRNALx8-ine B2的ESC特异性表达。综上所述,我们发现了ESCs的一个新的标记分子lncRNA,该标记由核心多能性调节因子驱动。
Pluripotency and self-renewal of embryonic stem cells (ESCs) are marked by core transcription regulators such as Oct4, Sox2, and Nanog. Another important marker of pluripotency is the long noncoding RNA (lncRNA). Here, we ind that a novel long noncoding RNA (lncRNA) Lx8-SINE B2 is a marker of pluripotency. LncRNA Lx8-SINE B2 is enriched in ESCs and downregulated during ESC differentiation. By rapid amplification of cDNA ends, we identified the full-length sequence of lncRNA Lx8-SINE B2. We further showed that transposable elements at upstream of lncRNA Lx8-SINE B2 could drive the expression of lncRNA Lx8-SINE B2. Furthermore, ESC-specific expression of lncRNA Lx8-SINE B2 was driven by Oct4 and Sox2. In summary, we identified a novel marker lncRNA of ESCs, which is driven by core pluripotency regulators.
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