作者
Partha Pratim Das, David A Hendrix, Effie Apostolou, Alice H Buchner, Matthew C Canver, Semir Beyaz, Damir Ljuboja, Rachael Kuintzle, Woojin Kim, Rahul Karnik, Zhen Shao, Huafeng Xie, Jian Xu, Alejandro De Los Angeles, Yingying Zhang, Junho Choe, Don Leong Jia Jun, Xiaohua Shen, Richard I Gregory, George Q Daley, Alexander Meissner, Manolis Kellis, Konrad Hochedlinger, Jonghwan Kim, Stuart H Orkin
发表日期
2015/9/1
期刊
Cell reports
卷号
12
期号
9
页码范围
1456-1470
出版商
Elsevier
简介
Polycomb Repressive Complex 2 (PRC2) function and DNA methylation (DNAme) are typically correlated with gene repression. Here, we show that PRC2 is required to maintain expression of maternal microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) from the Gtl2-Rian-Mirg locus, which is essential for full pluripotency of iPSCs. In the absence of PRC2, the entire locus becomes transcriptionally repressed due to gain of DNAme at the intergenic differentially methylated regions (IG-DMRs). Furthermore, we demonstrate that the IG-DMR serves as an enhancer of the maternal Gtl2-Rian-Mirg locus. Further analysis reveals that PRC2 interacts physically with Dnmt3 methyltransferases and reduces recruitment to and subsequent DNAme at the IG-DMR, thereby allowing for proper expression of the maternal Gtl2-Rian-Mirg locus. Our observations are consistent with a mechanism through which PRC2 …
引用总数
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