Senescence from glioma stem cell differentiation promotes tumor growth.
Senescence from glioma stem cell differentiation promotes tumor growth.
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DOI:
10.1016/j.bbrc.2016.01.071
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发表时间:
2016-02-05
影响因子:
3.1
通讯作者:
Seimiya, Hiroyuki
中科院分区:
文献类型:
--
作者:
Ouchi, Rie;Okabe, Sachiko;Migita, Toshiro;Nakano, Ichiro;Seimiya, Hiroyuki
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.
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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
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
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.