hTERT promotes tumor angiogenesis by activating VEGF via interactions with the Sp1 transcription factor.
hTERT promotes tumor angiogenesis by activating VEGF via interactions with the Sp1 transcription factor.
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hTERT 通过与 Sp1 转录因子相互作用激活 VEGF,从而促进肿瘤血管生成
DOI:
10.1093/nar/gkw549
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发表时间:
2016-10-14
影响因子:
14.9
通讯作者:
Cong YS
中科院分区:
文献类型:
--
作者:
Liu N;Ding D;Hao W;Yang F;Wu X;Wang M;Xu X;Ju Z;Liu JP;Song Z;Shay JW;Guo Y;Cong YS
Angiogenesis is recognized as an important hallmark of cancer. Although telomerase is thought to be involved in tumor angiogenesis, the evidence and underlying mechanism remain elusive. Here, we demonstrate that human telomerase reverse transcriptase (hTERT) activates vascular epithelial growth factor (VEGF) gene expression through interactions with the VEGF promoter and the transcription factor Sp1. hTERT binds to Sp1 in vitro and in vivo and stimulates angiogenesis in a manner dependent on Sp1. Deletion of the mTert gene in the first generation of Tert null mice compromised tumor growth, with reduced VEGF expression. In addition, we show that hTERT expression levels are positively correlated with those of VEGF in human gastric tumor samples. Together, our results demonstrate that hTERT facilitates tumor angiogenesis by up-regulating VEGF expression through direct interactions with the VEGF gene and the Sp1 transcription factor. These results provide novel insights into hTERT function in tumor progression in addition to its role in telomere maintenance.
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影响因子:
64.8
作者:
Park, Jae-Il;Venteicher, Andrew S.;Hong, Ji Yeon;Choi, Jinkuk;Jun, Sohee;Shkreli, Marina;Chang, Woody;Meng, Zhaojing;Cheung, Peggie;Ji, Hong;McLaughlin, Margaret;Veenstra, Timothy D.;Nusse, Roel;McCrea, Pierre D.;Artandi, Steven E.
通讯作者:
Artandi, Steven E.
影响因子:
64.8
作者:
Sarin, KY;Cheung, P;Artandi, SE
通讯作者:
Artandi, SE
DOI:
10.1158/1078-0432.ccr-09-1425
发表时间:
2009-12-01
期刊:
Clinical cancer research : an official journal of the American Association for Cancer Research
影响因子:
--
作者:
George J;Banik NL;Ray SK
通讯作者:
Ray SK
影响因子:
64.8
作者:
Carmeliet, Peter;Jain, Rakesh K.
通讯作者:
Jain, Rakesh K.
影响因子:
4.5
作者:
Choi J;Southworth LK;Sarin KY;Venteicher AS;Ma W;Chang W;Cheung P;Jun S;Artandi MK;Shah N;Kim SK;Artandi SE
通讯作者:
Artandi SE