Targeted epigenetic repression of a lymphoma oncogene by sequence-specific histone modifiers induces apoptosis in DLBCL.
Targeted epigenetic repression of a lymphoma oncogene by sequence-specific histone modifiers induces apoptosis in DLBCL.
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DOI:
10.1080/10428194.2016.1190973
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发表时间:
2017-02
影响因子:
2.6
通讯作者:
Payton JE
中科院分区:
文献类型:
--
作者:
Luo H;Schmidt JA;Lee YS;Oltz EM;Payton JE
Alterations to the epigenetic landscape of Diffuse Large B Cell Lymphoma (DLBCL) play a fundamental role in deregulating genes involved in normal lymphocyte differentiation. To determine whether targeted epigenetic therapy could reverse these pathogenic chromatin changes and suppress the expression of a lymphoma oncogene, we focused on BCL6, a transcriptional repressor whose aberrant expression is tightly linked to DLBCL proliferation and survival. We fused zinc-finger domains (ZF) specific for regulatory regions in the BCL6 locus to a repressive epigenetic modifier, the Kruppel-associated box repressor (KRAB). Distinct ZF-KRAB fusions repressed the local chromatin landscape, suppressed BCL6 expression, significantly impaired DLBCL growth and caused widespread cell death in a BCL6-dependent manner. Importantly, expression of ectopic BCL6 protein rescued ZF-KRAB-induced cell death, demonstrating the modifiers’ specificity. We show that sequence-specific epigenetic modifiers can alter oncogene expression and induce apoptosis in cancer cells, underscoring their potential for future development as targeted epigenetic protein therapies.
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影响因子:
32.4
作者:
Koues, Olivia I.;Kowalewski, Rodney A.;Chang, Li-Wei;Pyfrom, Sarah C.;Schmidt, Jennifer A.;Luo, Hong;Sandoval, Luis E.;Hughes, Tyler B.;Bednarski, Jeffrey J.;Cashen, Amanda F.;Payton, Jacqueline E.;Oltz, Eugene M.
通讯作者:
Oltz, Eugene M.
影响因子:
20.3
作者:
Cerchietti, Leandro C.;Yang, Shao Ning;Melnick, Ari
通讯作者:
Melnick, Ari
DOI:
10.1084/jem.20100204
发表时间:
2010-08-30
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Lai AY;Fatemi M;Dhasarathy A;Malone C;Sobol SE;Geigerman C;Jaye DL;Mav D;Shah R;Li L;Wade PA
通讯作者:
Wade PA
影响因子:
48
作者:
Gaj, Thomas;Guo, Jing;Kato, Yoshio;Sirk, Shannon J.;Barbas, Carlos F., III
通讯作者:
Barbas, Carlos F., III
影响因子:
32.4
作者:
Hawkins, R. David;Larjo, Antti;Lahesmaa, Riitta
通讯作者:
Lahesmaa, Riitta