Promoter and enhancer RNAs regulate chromatin reorganization and activation of miR-10b/HOXD locus, and neoplastic transformation in glioma.
Promoter and enhancer RNAs regulate chromatin reorganization and activation of miR-10b/HOXD locus, and neoplastic transformation in glioma.
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DOI:
10.1016/j.molcel.2022.03.018
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发表时间:
2022-05-19
期刊:
影响因子:
16
通讯作者:
Krichevsky, Anna M.
中科院分区:
文献类型:
--
作者:
Deforzh, Evgeny;Uhlmann, Erik J.;Das, Eashita;Galitsyna, Aleksandra;Arora, Ramil;Saravanan, Harini;Rabinovsky, Rosalia;Wirawan, Aditya D.;Teplyuk, Nadiya M.;El Fatimy, Rachid;Perumalla, Sucika;Jairam, Anirudh;Wei, Zhiyun;Mirny, Leonid;Krichevsky, Anna M.
miR-10b is silenced in normal neuroglial cells of the brain but commonly activated in glioma, where it assumes an essential tumor-promoting role. We demonstrate that the entire miR-10b-hosting HOXD locus is activated in glioma via the cis-acting mechanism involving 3D chromatin reorganization and CTCF-cohesin-mediated looping. This mechanism requires two interacting lncRNAs, HOXD-AS2 and LINC01116, one associated with HOXD3/HOXD4/miR-10b promoter and another with the remote enhancer. Knockdown of either lncRNA in glioma cells alters CTCF and cohesin binding, abolishes chromatin looping, inhibits expression of all genes within HOXD locus, and leads to glioma cell death. Conversely, in cortical astrocytes, enhancer activation is sufficient for HOXD/miR-10b locus reorganization, gene de-repression, and neoplastic cell transformation. LINC01116 RNA is essential for this process. Our results demonstrate the interplay of two lncRNAs in the chromatin folding and concordant regulation of miR-10b and multiple HOXD genes normally silenced in astrocytes and triggering the neoplastic glial transformation. Deforzh et al. investigated a common mechanism of HOXD/miR-10b genes’ derepression in glioblastoma and revealed the coordinated activity of two lncRNAs, HOXD-embedded HOXD-AS2 and distant enhancer-associated LINC01116, on CTCF/cohesin binding, chromatin topology, and astrocyte transformation. The work shed light on the molecular mechanisms of gliomagenesis. A model of the cooperative function of HOXD-AS2 and LINC01116 RNAs required for HOXD/miR-10b expression. The model proposes a requirement for specific CTCF/Rad21 binding, chromatin looping, and pRNA/eRNA stabilizing long-range chromatin interactions for transcription initiation.
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影响因子:
11.2
作者:
Kim J;Siverly AN;Chen D;Wang M;Yuan Y;Wang Y;Lee H;Zhang J;Muller WJ;Liang H;Gan B;Yang X;Sun Y;You MJ;Ma L
通讯作者:
Ma L
DOI:
10.1126/science.1226929
发表时间:
2012-11-23
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Friedmann-Morvinski D;Bushong EA;Ke E;Soda Y;Marumoto T;Singer O;Ellisman MH;Verma IM
通讯作者:
Verma IM
影响因子:
--
作者:
Brodie S;Lee HK;Jiang W;Cazacu S;Xiang C;Poisson LM;Datta I;Kalkanis S;Ginsberg D;Brodie C
通讯作者:
Brodie C
影响因子:
5.8
作者:
Klein, Felix A.;Pakozdi, Tibor;Huber, Wolfgang
通讯作者:
Huber, Wolfgang
影响因子:
3.9
作者:
Guessous, Fadila;Alvarado-Velez, Melissa;Marcinkiewicz, Lukasz;Zhang, Ying;Kim, Jungeun;Heister, Simon;Kefas, Benjamin;Godlewski, Jakub;Schiff, David;Purow, Benjamin;Abounader, Roger
通讯作者:
Abounader, Roger