Mesenchymal differentiation mediated by NF-κB promotes radiation resistance in glioblastoma.

Mesenchymal differentiation mediated by NF-κB promotes radiation resistance in glioblastoma.
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DOI:
10.1016/j.ccr.2013.08.001
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发表时间:
2013-09-09
期刊:
影响因子:
50.3
通讯作者:
Aldape K
Aldape K
中科院分区:
医学1区
文献类型:
--
作者:
Bhat KPL;Balasubramaniyan V;Vaillant B;Ezhilarasan R;Hummelink K;Hollingsworth F;Wani K;Heathcock L;James JD;Goodman LD;Conroy S;Long L;Lelic N;Wang S;Gumin J;Raj D;Kodama Y;Raghunathan A;Olar A;Joshi K;Pelloski CE;Heimberger A;Kim SH;Cahill DP;Rao G;Den Dunnen WFA;Boddeke HWGM;Phillips HS;Nakano I;Lang FF;Colman H;Sulman EP;Aldape K

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尽管进行了广泛的研究,但很少有胶质母细胞瘤(GBM)的治疗靶点被确定。在这里,我们表明,类似于前神经(PN)或间充质(MES)转录组亚型的患者源性胶质瘤球培养物(GSC)的生物学特征显着不同。此外,我们发现PN GSC的一个子集以TNFα/NF-κB依赖的方式分化为MES状态,并伴随着CD 44亚群和放射抗性表型的富集。我们目前的数据表明,肿瘤微环境细胞类型,如巨噬细胞/小胶质细胞可能在这一过程中发挥不可或缺的作用。我们进一步表明MES信号、CD 44表达和NF-κB活化与GBM患者的放射反应差和生存期短相关。
Despite extensive study, few therapeutic targets have been identified for glioblastoma (GBM). Here we show that patient derived glioma sphere cultures (GSCs) that resemble either the proneural (PN) or mesenchymal (MES) transcriptomal subtypes differ significantly in their biological characteristics. Moreover, we found that a subset of the PN GSCs undergo differentiation to a MES state in a TNFα/NF-κB dependent manner with an associated enrichment of CD44 subpopulations and radio-resistant phenotypes. We present data to suggest that the tumor microenvironment cell types such as macrophages/microglia may play an integral role in this process. We further show that the MES signature, CD44 expression, and NF-κB activation correlate with poor radiation response and shorter survival in patients with GBM.
肿瘤基因对神经元和星形胶质细胞的去分化会在小鼠中诱导神经胶质瘤。
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