Coordination of m6A mRNA methylation and gene transcription by ZFP217 regulates pluripotency and reprogramming

F Aguilo, F Zhang, A Sancho, M Fidalgo, S Di Cecilia… - Cell stem cell, 2015 - cell.com
Cell stem cell, 2015cell.com
Epigenetic and epitranscriptomic networks have important functions in maintaining the
pluripotency of embryonic stem cells (ESCs) and somatic cell reprogramming. However, the
mechanisms integrating the actions of these distinct networks are only partially understood.
Here we show that the chromatin-associated zinc finger protein 217 (ZFP217) coordinates
epigenetic and epitranscriptomic regulation. ZFP217 interacts with several epigenetic
regulators, activates the transcription of key pluripotency genes, and modulates N6 …
Summary
Epigenetic and epitranscriptomic networks have important functions in maintaining the pluripotency of embryonic stem cells (ESCs) and somatic cell reprogramming. However, the mechanisms integrating the actions of these distinct networks are only partially understood. Here we show that the chromatin-associated zinc finger protein 217 (ZFP217) coordinates epigenetic and epitranscriptomic regulation. ZFP217 interacts with several epigenetic regulators, activates the transcription of key pluripotency genes, and modulates N6-methyladenosine (m6A) deposition on their transcripts by sequestering the enzyme m6A methyltransferase-like 3 (METTL3). Consistently, Zfp217 depletion compromises ESC self-renewal and somatic cell reprogramming, globally increases m6A RNA levels, and enhances m6A modification of the Nanog, Sox2, Klf4, and c-Myc mRNAs, promoting their degradation. ZFP217 binds its own target gene mRNAs, which are also METTL3 associated, and is enriched at promoters of m6A-modified transcripts. Collectively, these findings shed light on how a transcription factor can tightly couple gene transcription to m6A RNA modification to ensure ESC identity.
cell.com
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