Senescence from glioma stem cell differentiation promotes tumor growth.

Senescence from glioma stem cell differentiation promotes tumor growth.
复制标题

DOI:
10.1016/j.bbrc.2016.01.071
复制
发表时间:
2016-02-05
影响因子:
3.1
通讯作者:
Seimiya, Hiroyuki
Seimiya, Hiroyuki
中科院分区:
生物学4区
文献类型:
--
作者:
Ouchi, Rie;Okabe, Sachiko;Migita, Toshiro;Nakano, Ichiro;Seimiya, Hiroyuki

文献摘要

参考文献

被引文献

相似文献

胶质母细胞瘤(GBM)是一种致命的脑肿瘤,由包括胶质瘤干细胞(GSC)和分化的非干细胞胶质瘤细胞(NSGCs)的异质细胞群组成。虽然GSC参与肿瘤的发生和增殖,但NSGCs的作用仍然难以捉摸。在这里,我们证明了NSGCs经历衰老并分泌促血管生成蛋白,促进GSC衍生的肿瘤在体内形成。我们使用了一种GSC模型,该模型在神经球中保持干细胞性,但在血清刺激后失去干细胞性并分化为NSGCs。这些NSGCs下调端粒酶,缩短端粒,并最终变得衰老。衰老的NSGCs释放促血管生成蛋白,包括血管内皮生长因子和衰老相关的白细胞介素,如IL-6和IL-8。衰老NSGCs条件培养液可促进脑微血管内皮细胞增殖,GSC和衰老NSGCs混合移植可增强GSC的致瘤性。衰老的NSGCs似乎是临床相关的,因为临床样品和GBM的异种移植物都含有表达衰老标志物的肿瘤细胞。我们的数据表明,衰老的NSGCs促进恶性进展的GBM部分通过旁分泌作用的分泌蛋白。
Glioblastoma (GBM) is a lethal brain tumor composed of heterogeneous cellular populations including glioma stem cells (GSCs) and differentiated non-stem glioma cells (NSGCs). While GSCs are involved in tumor initiation and propagation, NSGCs’ role remains elusive. Here, we demonstrate that NSGCs undergo senescence and secrete pro-angiogenic proteins, boosting the GSC-derived tumor formation in vivo. We used a GSC model that maintains stemness in neurospheres, but loses the stemness and differentiates into NSGCs upon serum stimulation. These NSGCs downregulated telomerase, shortened telomeres, and eventually became senescent. The senescent NSGCs released pro-angiogenic proteins, including vascular endothelial growth factors and senescence-associated interleukins, such as IL-6 and IL-8. Conditioned medium from senescent NSGCs promoted proliferation of brain microvascular endothelial cells, and mixed implantation of GSCs and senescent NSGCs into mice enhanced the tumorigenic potential of GSCs. The senescent NSGCs seem to be clinically relevant, because both clinical samples and xenografts of GBM contained tumor cells that expressed the senescence markers. Our data suggest that senescent NSGCs promote malignant progression of GBM in part via paracrine effects of the secreted proteins.
DOI: 10.1146/annurev-pathol-121808-102144
发表时间: 2010
期刊: Annual review of pathology
影响因子: --
作者:
Coppé JP;Desprez PY;Krtolica A;Campisi J
通讯作者: Campisi J
DOI: 10.1016/j.molcel.2013.11.009
发表时间: 2013-12-12
期刊: MOLECULAR CELL
影响因子: 16
作者:
Chiou, Guang-Yuh;Chien, Chian-Shiu;Chiou, Shih-Hwa
通讯作者: Chiou, Shih-Hwa
DOI: 10.1084/jem.20111424
发表时间: 2012-03-12
期刊: The Journal of experimental medicine
影响因子: --
作者:
Hamerlik P;Lathia JD;Rasmussen R;Wu Q;Bartkova J;Lee M;Moudry P;Bartek J Jr;Fischer W;Lukas J;Rich JN;Bartek J
通讯作者: Bartek J
DOI: 10.1016/j.ccr.2007.02.026
发表时间: 2007-05-01
期刊: CANCER CELL
影响因子: 50.3
作者:
Feldser, David M.;Greider, Carol W.
通讯作者: Greider, Carol W.
DOI: 10.1073/pnas.1102454108
发表时间: 2011-05-10
影响因子: 11.1
作者:
Chaffer, Christine L.;Brueckmann, Ines;Weinberg, Robert A.
通讯作者: Weinberg, Robert A.