Abstract:
:DNA methylation plays crucial roles in chromatin structure and gene expression. Aberrant DNA methylation patterns, including global hypomethylation and regional hypermethylation, are associated with cancer and implicated in oncogenic events. How DNA methylation is regulated in developmental and cellular processes and dysregulated in cancer is poorly understood. Here, we show that PRMT6, a protein arginine methyltransferase responsible for asymmetric dimethylation of histone H3 arginine 2 (H3R2me2a), negatively regulates DNA methylation and that PRMT6 upregulation contributes to global DNA hypomethylation in cancer. Mechanistically, PRMT6 overexpression impairs chromatin association of UHRF1, an accessory factor of DNMT1, resulting in passive DNA demethylation. The effect is likely due to elevated H3R2me2a, which inhibits the interaction between UHRF1 and histone H3. Our work identifies a mechanistic link between protein arginine methylation and DNA methylation, which is disrupted in cancer.
journal_name
Cell Repjournal_title
Cell reportsauthors
Veland N,Hardikar S,Zhong Y,Gayatri S,Dan J,Strahl BD,Rothbart SB,Bedford MT,Chen Tdoi
10.1016/j.celrep.2017.11.082subject
Has Abstractpub_date
2017-12-19 00:00:00pages
3390-3397issue
12issn
2211-1247pii
S2211-1247(17)31749-7journal_volume
21pub_type
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