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

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Fuquan Chen ◽  
Miao Zhang ◽  
Xiao Feng ◽  
Xiaomin Li ◽  
Haotian Sun ◽  
...  

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.

2017 ◽  
Vol 9 (1) ◽  
pp. 108-121 ◽  
Author(s):  
Keriayn N. Smith ◽  
Joshua Starmer ◽  
Sarah C. Miller ◽  
Praveen Sethupathy ◽  
Terry Magnuson

2013 ◽  
Vol 110 (8) ◽  
pp. 2876-2881 ◽  
Author(s):  
A. A. Sigova ◽  
A. C. Mullen ◽  
B. Molinie ◽  
S. Gupta ◽  
D. A. Orlando ◽  
...  

PLoS ONE ◽  
2018 ◽  
Vol 13 (1) ◽  
pp. e0191682 ◽  
Author(s):  
Maria Winzi ◽  
Nuria Casas Vila ◽  
Maciej Paszkowski-Rogacz ◽  
Li Ding ◽  
Svenja Noack ◽  
...  

2018 ◽  
Vol 67 ◽  
pp. 32-40.e3 ◽  
Author(s):  
Shenmeng Gao ◽  
Bin Zhou ◽  
Haiying Li ◽  
Xingzhou Huang ◽  
Yanfei Wu ◽  
...  

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Yanlei Yang ◽  
Junfen Fan ◽  
Haoying Xu ◽  
Linyuan Fan ◽  
Luchan Deng ◽  
...  

AbstractLong noncoding RNAs are crucial factors for modulating adipogenic differentiation, but only a few have been identified in humans. In the current study, we identified a previously unknown human long noncoding RNA, LYPLAL1-antisense RNA1 (LYPLAL1-AS1), which was dramatically upregulated during the adipogenic differentiation of human adipose-derived mesenchymal stem cells (hAMSCs). Based on 5′ and 3′ rapid amplification of cDNA ends assays, full-length LYPLAL1-AS1 was 523 nt. Knockdown of LYPLAL1-AS1 decreased the adipogenic differentiation of hAMSCs, whereas overexpression of LYPLAL1-AS1 enhanced this process. Desmoplakin (DSP) was identified as a direct target of LYPLAL1-AS1. Knockdown of DSP enhanced adipogenic differentiation and rescued the LYPLAL1-AS1 depletion-induced defect in adipogenic differentiation of hAMSCs. Further experiments showed that LYPLAL1-AS1 modulated DSP protein stability possibly via proteasome degradation, and the Wnt/β-catenin pathway was inhibited during adipogenic differentiation regulated by the LYPLAL1-AS1/DSP complex. Together, our work provides a new mechanism by which long noncoding RNA regulates adipogenic differentiation of human MSCs and suggests that LYPLAL1-AS1 may serve as a novel therapeutic target for preventing and combating diseases related to abnormal adipogenesis, such as obesity.


2018 ◽  
Vol 314 (6) ◽  
pp. C712-C720 ◽  
Author(s):  
Xiaojuan Xu ◽  
Mengmeng Guo ◽  
Na Zhang ◽  
Shoudong Ye

Although long noncoding RNAs (lncRNAs) are emerging as new modulators in the fate decision of pluripotent stem cells, the functions of specific lncRNAs remain unclear. Here, we found that telomeric RNA (TERRA or TelRNA), one type of lncRNAs, is highly expressed in mouse embryonic stem cells (mESCs) but declines significantly upon differentiation. TERRA is induced by the Wnt/β-catenin signaling pathway and can reproduce its self-renewal-promoting effect when overexpressed. Further studies revealed that T cell factor 3 ( TCF3) is a potential downstream target of TERRA and mediates the effect of TERRA in mESC maintenance. TERRA inhibits TCF3 transcription, while enforced TCF3 expression abrogates the undifferentiated state of mESCs supported by TERRA. Accordingly, the transcripts of the pluripotency genes Esrrb, Tfcp2l1, and Klf2, repressed by TCF3 in mESCs, are increased in TERRA-overexpressing cells. Our study therefore highlights the important role of TERRA in mESC maintenance and also uncovers a mechanism by which TERRA promotes self-renewal. These data will expand our understanding of the pluripotent regulatory network of ESCs.


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