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Deep sequencing reveals a global reprogramming of lncRNA transcriptome during EMT. | LitMetric

Deep sequencing reveals a global reprogramming of lncRNA transcriptome during EMT.

Biochim Biophys Acta Mol Cell Res

Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Research Center of Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China. Electronic address:

Published: October 2017

AI Article Synopsis

Article Abstract

Unlabelled: Several studies have shown that long non-coding RNAs (lncRNAs) may play an essential role in Epithelial-Mesenchymal Transition (EMT), which is an important step in tumor metastasis; however, little is known about the global change of lncRNA transcriptome during EMT. To investigate how lncRNA transcriptome alterations contribute to EMT progression regulation, we deep-sequenced the whole-transcriptome of MCF10A as the cells underwent TGF-β-induced EMT.

Results: Deep-sequencing results showed that the long RNA transcriptome of MCF10A had undergone global changes as early as 8h after treatment with TGF-β. The expression of 3403 known and novel lncRNAs, and 570 known and novel circRNAs were altered during EMT. To identify the key lncRNA-regulator, we constructed the co-expression network and found all junction nodes in the network are lncRNAs. One junction node, RP6-65G23.5, was further verified as a key regulator of EMT. Intriguingly, we identified 216 clusters containing lncRNAs which were located in "gene desert" regions. The expressions of all lncRNAs in these clusters changed concurrently during EMT, strongly suggesting that these clusters might play important roles in EMT. Our study reveals a global reprogramming of lncRNAs transcriptome during EMT and provides clues for the future study of the molecular mechanism of EMT.

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Source
http://dx.doi.org/10.1016/j.bbamcr.2017.06.003DOI Listing

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