Enhancer sequence variants and transcription-factor deregulation synergize to construct pathogenic regulatory circuits in B-cell lymphoma.
Enhancer sequence variants and transcription-factor deregulation synergize to construct pathogenic regulatory circuits in B-cell lymphoma.
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DOI:
10.1016/j.immuni.2014.12.021
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发表时间:
2015-01-20
期刊:
影响因子:
32.4
通讯作者:
Oltz, Eugene M.
中科院分区:
文献类型:
--
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.
Most B cell lymphomas arise in the germinal center (GC), where humoral immune responses evolve from potentially oncogenic cycles of mutation, proliferation, and clonal selection. Although lymphoma gene expression diverges significantly from GC-B cells, underlying mechanisms that alter the activities of corresponding regulatory elements (REs) remain elusive. Here we define the complete pathogenic circuitry of human follicular lymphoma (FL), which activates or decommissions REs from normal GC-B cells and commandeers enhancers from other lineages. Moreover, independent sets of transcription factors, whose expression was deregulated in FL, targeted commandeered versus decommissioned REs. Our approach revealed two distinct subtypes of low-grade FL, whose pathogenic circuitries resembled GC-B or activated B cells. FL-altered enhancers also were enriched for sequence variants, including somatic mutations, which disrupt transcription factor binding and expression of circuit-linked genes. Thus, the pathogenic regulatory circuitry of FL reveals distinct genetic and epigenetic etiologies for GC-B transformation.
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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:
4.4
作者:
Caron, Gersende;Le Gallou, Simon;Fest, Thierry
通讯作者:
Fest, Thierry
DOI:
10.1073/pnas.0804863106
发表时间:
2009-02-03
影响因子:
11.1
作者:
Basu, Suchitra;Liu, Qingquan;Dong, Fan
通讯作者:
Dong, Fan
影响因子:
20.3
作者:
Huang, Chuanxin;Geng, Huimin;Melnick, Ari
通讯作者:
Melnick, Ari
影响因子:
50.3
作者:
Chapuy B;McKeown MR;Lin CY;Monti S;Roemer MG;Qi J;Rahl PB;Sun HH;Yeda KT;Doench JG;Reichert E;Kung AL;Rodig SJ;Young RA;Shipp MA;Bradner JE
通讯作者:
Bradner JE