Constitutive canonical NF-κB activation cooperates with disruption of BLIMP1 in the pathogenesis of activated B cell-like diffuse large cell lymphoma.

Constitutive canonical NF-κB activation cooperates with disruption of BLIMP1 in the pathogenesis of activated B cell-like diffuse large cell lymphoma.
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DOI:
10.1016/j.ccr.2010.11.024
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发表时间:
2010-12-14
期刊:
影响因子:
50.3
通讯作者:
Rajewsky K
Rajewsky K
中科院分区:
医学1区
文献类型:
--
作者:
Calado DP;Zhang B;Srinivasan L;Sasaki Y;Seagal J;Unitt C;Rodig S;Kutok J;Tarakhovsky A;Schmidt-Supprian M;Rajewsky K

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弥漫性大B细胞淋巴瘤(DLBCL)包括具有不同遗传特征的疾病实体,包括生发中心B细胞(GCB)样和活化B细胞(ABC)样DLBCL。这两种亚型之间的主要差异包括遗传畸变导致组成型NF-κB活化和通过BLIMP 1失活干扰终末B细胞分化,在ABC-而非GCB-DLBCL中观察到。在小鼠中使用条件性功能获得和/或功能丧失诱变,我们表明典型NF-κB通路的组成性激活与BLIMP 1的破坏在类似于人ABC-DLBCL的淋巴瘤的发展中协同作用。我们的工作表明,NF-κB信号作为一种致癌事件,BLIMP 1作为一种肿瘤抑制因子,在ABC-DLBCL的发病机制中发挥因果作用。
Diffuse large B-cell lymphoma (DLBCL) comprises disease entities with distinct genetic profiles, including germinal center B-cell (GCB) like and activated B-cell (ABC) like DLBCLs. Major differences between these two subtypes include genetic aberrations leading to constitutive NF-κB activation and interference with terminal B-cell differentiation through BLIMP1 inactivation, observed in ABC- but not GCB-DLBCL. Using conditional gain-of-function and/or loss-of-function mutagenesis in the mouse we show that constitutive activation of the canonical NF-κB pathway cooperates with disruption of BLIMP1 in the development of a lymphoma that resembles human ABC-DLBCL. Our work suggests that both NF-κB signaling, as an oncogenic event, and BLIMP1, as a tumor suppressor, play causal roles in the pathogenesis of ABC-DLBCL.
RER诱导干扰素调节因子4(IRF-4)在淋巴细胞中的表达:通过REL/核因子Kappab对干扰素调节的基因表达的调节。
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