Human colorectal cancer-specific CCAT1-L lncRNA regulates long-range chromatin interactions at the MYC locus.
Human colorectal cancer-specific CCAT1-L lncRNA regulates long-range chromatin interactions at the MYC locus.
复制标题
人类结直肠癌特异性 CCAT1-L lncRNA 调节 MYC 位点的长程染色质相互作用
作者:
The human 8q24 gene desert contains multiple enhancers that form tissue-specific long-range chromatin loops with the MYC oncogene, but how chromatin looping at the MYC locus is regulated remains poorly understood. Here we demonstrate that a long noncoding RNA (lncRNA), CCAT1-L, is transcribed specifically in human colorectal cancers from a locus 515 kb upstream of MYC. This lncRNA plays a role in MYC transcriptional regulation and promotes long-range chromatin looping. Importantly, the CCAT1-L locus is located within a strong super-enhancer and is spatially close to MYC. Knockdown of CCAT1-L reduced long-range interactions between the MYC promoter and its enhancers. In addition, CCAT1-L interacts with CTCF and modulates chromatin conformation at these loop regions. These results reveal an important role of a previously unannotated lncRNA in gene regulation at the MYC locus.
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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:
64.8
作者:
通讯作者:
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影响因子:
64.5
作者:
Hnisz D;Abraham BJ;Lee TI;Lau A;Saint-André V;Sigova AA;Hoke HA;Young RA
通讯作者:
Young RA
影响因子:
17.3
作者:
Gaj, Thomas;Gersbach, Charles A.;Barbas, Carlos F., III
通讯作者:
Barbas, Carlos F., III
DOI:
10.1073/pnas.0910668107
发表时间:
2010-05-25
影响因子:
11.1
作者:
Ahmadiyeh, Nasim;Pomerantz, Mark M.;Freedman, Matthew L.
通讯作者:
Freedman, Matthew L.