Genome-wide analysis of the human p53 transcriptional network unveils a lncRNA tumour suppressor signature.
Genome-wide analysis of the human p53 transcriptional network unveils a lncRNA tumour suppressor signature.
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DOI:
10.1038/ncomms6812
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发表时间:
2014-12-19
影响因子:
16.6
通讯作者:
Huarte, Maite
中科院分区:
文献类型:
--
作者:
Sanchez, Yolanda;Segura, Victor;Marin-Bejar, Oskar;Athie, Alejandro;Marchese, Francesco P.;Gonzalez, Jovanna;Bujanda, Luis;Guo, Shuling;Matheu, Ander;Huarte, Maite
Despite the inarguable relevance of p53 in cancer, genome-wide studies relating endogenous p53 activity to the expression of lncRNAs in human cells are still missing. Here, by integrating RNA-seq with p53 ChIP-seq analyses of a human cancer cell line under DNA damage, we define a high-confidence set of 18 lncRNAs that are p53 transcriptional targets. We demonstrate that two of the p53-regulated lncRNAs are required for the efficient binding of p53 to some of its target genes, modulating the p53 transcriptional network and contributing to apoptosis induction by DNA damage. We also show that the expression of p53-lncRNAs is lowered in colorectal cancer samples, constituting a tumour suppressor signature with high diagnostic power. Thus, p53-regulated lncRNAs establish a positive regulatory feedback loop that enhances p53 tumour suppressor activity. Furthermore, the signature defined by p53-regulated lncRNAs supports their potential use in the clinic as biomarkers and therapeutic targets. Several studies have shown that p53 regulates the expression of some long noncoding RNAs (lncRNAs) implicated in apoptosis and proliferation. Here, by integrating RNA-seq and ChIP-seq analyses, the authors identify p53-regulated lncRNAs in the HCT116 colorectal cancer cell line.
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影响因子:
64.5
作者:
Huarte M;Guttman M;Feldser D;Garber M;Koziol MJ;Kenzelmann-Broz D;Khalil AM;Zuk O;Amit I;Rabani M;Attardi LD;Regev A;Lander ES;Jacks T;Rinn JL
通讯作者:
Rinn JL
影响因子:
14.8
作者:
通讯作者:
--
影响因子:
64.8
作者:
通讯作者:
--
影响因子:
7
作者:
Harrow J;Frankish A;Gonzalez JM;Tapanari E;Diekhans M;Kokocinski F;Aken BL;Barrell D;Zadissa A;Searle S;Barnes I;Bignell A;Boychenko V;Hunt T;Kay M;Mukherjee G;Rajan J;Despacio-Reyes G;Saunders G;Steward C;Harte R;Lin M;Howald C;Tanzer A;Derrien T;Chrast J;Walters N;Balasubramanian S;Pei B;Tress M;Rodriguez JM;Ezkurdia I;van Baren J;Brent M;Haussler D;Kellis M;Valencia A;Reymond A;Gerstein M;Guigó R;Hubbard TJ
通讯作者:
Hubbard TJ
影响因子:
4
作者:
Marques, Ana C.;Ponting, Chris P.
通讯作者:
Ponting, Chris P.