Targeted RNA N 6 -Methyladenosine Demethylation Controls Cell Fate Transition in Human Pluripotent Stem Cells

Deficiency of the N -methyladenosine (m A) methyltransferase complex results in global reduction of m A abundance and defective cell development in embryonic stem cells (ESCs). However, it's unclear whether regional m A methylation affects cell fate decisions due to the inability to modulate in...

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Veröffentlicht in:Advanced science 2021-06, Vol.8 (11), p.e2003902
Hauptverfasser: Chen, Xuena, Zhao, Qingquan, Zhao, Yu-Li, Chai, Guo-Shi, Cheng, Weisheng, Zhao, Zhiju, Wang, Jia, Luo, Guan-Zheng, Cao, Nan
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container_issue 11
container_start_page e2003902
container_title Advanced science
container_volume 8
creator Chen, Xuena
Zhao, Qingquan
Zhao, Yu-Li
Chai, Guo-Shi
Cheng, Weisheng
Zhao, Zhiju
Wang, Jia
Luo, Guan-Zheng
Cao, Nan
description Deficiency of the N -methyladenosine (m A) methyltransferase complex results in global reduction of m A abundance and defective cell development in embryonic stem cells (ESCs). However, it's unclear whether regional m A methylation affects cell fate decisions due to the inability to modulate individual m A modification in ESCs with precise temporal control. Here, a targeted RNA m A erasure (TRME) system is developed to achieve site-specific demethylation of RNAs in human ESCs (hESCs). TRME, in which a stably transfected, doxycycline-inducible dCas13a is fused to the catalytic domain of ALKBH5, can precisely and reversibly demethylate the targeted m A site of mRNA and increase mRNA stability with limited off-target effects. It is further demonstrated that temporal m A erasure on a single site of SOX2 is sufficient to control the differentiation of hESCs. This study provides a versatile toolbox to reveal the function of individual m A modification in hESCs, enabling cell fate control studies at the epitranscriptional level.
doi_str_mv 10.1002/advs.202003902
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However, it's unclear whether regional m A methylation affects cell fate decisions due to the inability to modulate individual m A modification in ESCs with precise temporal control. Here, a targeted RNA m A erasure (TRME) system is developed to achieve site-specific demethylation of RNAs in human ESCs (hESCs). TRME, in which a stably transfected, doxycycline-inducible dCas13a is fused to the catalytic domain of ALKBH5, can precisely and reversibly demethylate the targeted m A site of mRNA and increase mRNA stability with limited off-target effects. It is further demonstrated that temporal m A erasure on a single site of SOX2 is sufficient to control the differentiation of hESCs. 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subjects Adenosine - analogs & derivatives
Adenosine - genetics
AlkB Homolog 5, RNA Demethylase - genetics
Caspases - genetics
Catalytic Domain - genetics
Cell Differentiation - genetics
Cell Lineage - genetics
Cell Proliferation - genetics
Communication
Communications
CRISPR
Cytoplasm
Demethylation
Editors
Embryonic Stem Cells - cytology
Embryonic Stem Cells - metabolism
Humans
Localization
Methylation
Methyltransferases - genetics
Mutation
Pluripotent Stem Cells - metabolism
Proteins
RNA Stability - genetics
RNA, Messenger - genetics
SOXB1 Transcription Factors - genetics
Stem cells
title Targeted RNA N 6 -Methyladenosine Demethylation Controls Cell Fate Transition in Human Pluripotent Stem Cells
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