Allele-Specific DNA Methylation and Its Interplay with Repressive Histone Marks at Promoter-Mutant TERT Genes.
Allele-Specific DNA Methylation and Its Interplay with Repressive Histone Marks at Promoter-Mutant TERT Genes.
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DOI:
10.1016/j.celrep.2017.12.001
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发表时间:
2017-12-26
期刊:
影响因子:
8.8
通讯作者:
Cech TR
中科院分区:
文献类型:
--
作者:
Stern JL;Paucek RD;Huang FW;Ghandi M;Nwumeh R;Costello JC;Cech TR
A mutation in the promoter of the Telomerase Reverse Transcriptase (TERT) gene is the most frequent noncoding mutation in cancer. The mutation drives unusual monoallelic expression of TERT, allowing immortalization. Here we find that DNA methylation of the TERT CpG Island (CGI) is also allele-specific in multiple cancers. The expressed allele is hypomethylated, which is opposite to cancers without TERT promoter mutations. The continued presence of Polycomb repressive complex 2 (PRC2) on the inactive allele suggests that histone marks of repressed chromatin may be causally linked to high DNA methylation. Consistent with this hypothesis, TERT promoter DNA containing 5-methyl-CpG has much increased affinity for PRC2 in vitro. Thus, CpG methylation and histone marks appear to collaborate to maintain the two TERT alleles in different epigenetic states in TERT promoter-mutant cancers. Finally, in several cancers DNA methylation levels at the TERT CGI correlate with altered patient survival.
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影响因子:
30.8
作者:
Barthel FP;Wei W;Tang M;Martinez-Ledesma E;Hu X;Amin SB;Akdemir KC;Seth S;Song X;Wang Q;Lichtenberg T;Hu J;Zhang J;Zheng S;Verhaak RG
通讯作者:
Verhaak RG
影响因子:
6.2
作者:
Huang, F. W.;Bielski, C. M.;Kryukov, G. V.
通讯作者:
Kryukov, G. V.
DOI:
10.1016/j.bbrc.2004.10.137
发表时间:
2004-12-17
影响因子:
3.1
作者:
Guilleret, I;Benhattar, J
通讯作者:
Benhattar, J
DOI:
10.1126/science.1229259
发表时间:
2013-02-22
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Huang FW;Hodis E;Xu MJ;Kryukov GV;Chin L;Garraway LA
通讯作者:
Garraway LA
影响因子:
11.4
作者:
Lynch, Magnus D.;Smith, Andrew J. H.;Higgs, Douglas R.
通讯作者:
Higgs, Douglas R.