Exploiting synthetic lethality for the therapy of ABC diffuse large B cell lymphoma.

Exploiting synthetic lethality for the therapy of ABC diffuse large B cell lymphoma.
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DOI:
10.1016/j.ccr.2012.05.024
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发表时间:
2012-06-12
期刊:
影响因子:
50.3
通讯作者:
Staudt LM
Staudt LM
中科院分区:
医学1区
文献类型:
--
作者:
Yang Y;Shaffer AL 3rd;Emre NC;Ceribelli M;Zhang M;Wright G;Xiao W;Powell J;Platig J;Kohlhammer H;Young RM;Zhao H;Yang Y;Xu W;Buggy JJ;Balasubramanian S;Mathews LA;Shinn P;Guha R;Ferrer M;Thomas C;Waldmann TA;Staudt LM

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Knowledge of oncogenic mutations can inspire therapeutic strategies that are synthetically lethal, affecting cancer cells while sparing normal cells. Lenalidomide is an active agent in the activated B-cell-like (ABC) subtype of diffuse large B cell lymphoma (DLBCL), but its mechanism of action is unknown. Lenalidomide kills ABC DLBCL cells by augmenting interferon β (IFNβ) production, owing to the oncogenic MYD88 mutations in these lymphomas. In a cereblon-dependent fashion, lenalidomide downregulates IRF4 and SPIB, transcription factors that together prevent IFNβ production by repressing IRF7 and also amplify pro-survival NF-κB signaling by transactivating CARD11. Blockade of B cell receptor (BCR) signaling using the BTK inhibitor ibrutinib also downregulates IRF4 and consequently synergizes with lenalidomide in killing ABC DLBCLs, suggesting attractive therapeutic strategies.
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