A TRIM71 binding long noncoding RNA Trincr1 represses FGF/ERK signaling in embryonic stem cells

Ya-Pu Li, Fei-Fei Duan, Yu-Ting Zhao, Kai-Li Gu, Le-Qi Liao, Huai-Bin Su, Jing Hao, Kun Zhang, Na Yang and Yangming Wang ()
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Ya-Pu Li: Peking University
Fei-Fei Duan: Peking University
Yu-Ting Zhao: Peking University
Kai-Li Gu: Peking University
Le-Qi Liao: Peking University
Huai-Bin Su: Peking University
Jing Hao: Peking University
Kun Zhang: Nankai University
Na Yang: Nankai University
Yangming Wang: Peking University

Nature Communications, 2019, vol. 10, issue 1, 1-13

Abstract: Abstract Long noncoding RNAs (lncRNAs) have emerged as important components of gene regulatory network in embryonic stem cells (ESCs). However, the function and molecular mechanism of lncRNAs are still largely unknown. Here we identifies Trincr1 (TRIM71 interacting long noncoding RNA 1) lncRNA that regulates the FGF/ERK signaling and self-renewal of ESCs. Trincr1 is exported by THOC complex to cytoplasm where it binds and represses TRIM71, leading to the downregulation of SHCBP1 protein. Knocking out Trincr1 leads to the upregulation of phosphorylated ERK and ERK pathway target genes and the decrease of ESC self-renewal, while knocking down Trim71 completely rescues the defects of Trincr1 knockout. Furthermore, ectopic expression of Trincr1 represses FGF/ERK signaling and the self-renewal of neural progenitor cells (NPCs). Together, this study highlights lncRNA as an important player in cell signaling network to coordinate cell fate specification.

Date: 2019
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DOI: 10.1038/s41467-019-08911-w

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