Eukaryotic Translation Initiation Factor 4 Gamma 1 (eIF4G1) is upregulated during Prostate cancer progression and modulates cell growth and metastasis.

Eukaryotic Translation Initiation Factor 4 Gamma 1 (eIF4G1) is upregulated during Prostate cancer progression and modulates cell growth and metastasis.
复制标题

DOI:
10.1038/s41598-018-25798-7
复制
发表时间:
2018-05-10
期刊:
影响因子:
4.6
通讯作者:
Koul HK
Koul HK
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Jaiswal PK;Koul S;Shanmugam PST;Koul HK

文献摘要

参考文献

被引文献

相似文献

eIF4G1 是 eIF4F 复合物的关键组成部分,是帽子依赖性 mRNA 翻译所必需的,这是肿瘤生长和存活所必需的过程。然而,eIF4G1 在前列腺癌 (PCa) 中的作用尚未得到评估。我们观察到与正常组织相比,PCa 组织中的 eIF4G1 蛋白水平增加。 TCGA 数据分析显示,eIF4G1 基因表达与较高的肿瘤分级和分期呈正相关。此外,eIF4G1 在 16% 的转移性 PCa 患者(SU2C/PCF Dream Team 数据集)和 59% 的去势抵抗性前列腺癌 (CRPC) 患者(Trento/Cornell/Broad 数据集)中过度表达和/或扩增。我们首次发现 PCa 中 eIF4G1 表达增加,并且 eIF4G1 表达增加与肿瘤进展和转移相关。我们还观察到,与来自野生型小鼠的正常前列腺细胞系和前列腺组织相比,来自 PCa TRAMP 模型的 PCa 细胞系和前列腺组织中 eIF4G1 的蛋白水平较高。 PCa 细胞中 eIF4G1 的敲低导致 Cyclin D1 和 p-Rb 蛋白水平降低、细胞周期延迟、细胞活力和增殖降低、克隆形成活性受损、细胞迁移减少以及多核糖体的 mRNA 负载减少。使用 eIF4G 复合物抑制剂治疗也会损害前列腺球形成。 eIF4G1 敲除或 eIF4G 复合物抑制剂治疗可使 CRPC 细胞对恩杂鲁胺和比卡鲁胺敏感。我们的结果表明 eIF4G1 在 PCa 生长和治疗耐药中发挥重要作用。这些数据表明 eIF4G1 作为癌蛋白发挥作用,并可能作为干预 PCa 和 CRPC 的新靶点。
eIF4G1, a critical component of the eIF4F complex, is required for cap-dependent mRNA translation, a process necessary for tumor growth and survival. However, the role of eIF4G1 has not been evaluated in Prostate Cancer (PCa). We observed an increased eIF4G1 protein levels in PCa tissues as compared to normal tissues. Analysis of the TCGA data revealed that eIF4G1 gene expression positively correlated with higher tumor grade and stage. Furthermore, eIF4G1 was over-expressed and or amplified, in 16% patients with metastatic PCa (SU2C/PCF Dream Team dataset) and in 59% of castration-resistant prostate cancer (CRPC) patients (Trento/Cornell/Broad dataset). We showed for the first time that eIF4G1 expression was increased in PCa and that increased eIF4G1 expression associated with tumor progression and metastasis. We also observed high protein levels of eIF4G1 in PCa cell lines and prostate tissues from the TRAMP model of PCa as compared to normal prostate cell line and prostate tissues from the wild type mice. Knockdown of eIF4G1 in PCa cells resulted in decreased Cyclin D1 and p-Rb protein level, cell cycle delay, reduced cell viability and proliferation, impaired clonogenic activity, reduced cell migration and decreased mRNA loading to polysomes. Treatment with eIF4G complex inhibitor also impaired prostasphere formation. eIF4G1 knockdown or treatment with eIF4G complex inhibitor sensitized CRPC cells to Enzalutamide and Bicalutamide. Our results showed that eIF4G1 plays an important role in PCa growth and therapeutic resistance. These data suggested that eIF4G1 functions as an oncoprotein and may serve as a novel target for intervention in PCa and CRPC.
DOI: 10.1126/scisignal.2004088
发表时间: 2013-04-02
期刊: Science signaling
影响因子: 7.3
作者:
Gao J;Aksoy BA;Dogrusoz U;Dresdner G;Gross B;Sumer SO;Sun Y;Jacobsen A;Sinha R;Larsson E;Cerami E;Sander C;Schultz N
通讯作者: Schultz N
DOI: 10.1038/nm.4045
发表时间: 2016-03
期刊: Nature medicine
影响因子: 82.9
作者:
Beltran H;Prandi D;Mosquera JM;Benelli M;Puca L;Cyrta J;Marotz C;Giannopoulou E;Chakravarthi BV;Varambally S;Tomlins SA;Nanus DM;Tagawa ST;Van Allen EM;Elemento O;Sboner A;Garraway LA;Rubin MA;Demichelis F
通讯作者: Demichelis F
真核翻译起始因子 4 γ 1 (EIF4G1) 在 NSCLC 中的功能作用
DOI: 10.18632/oncotarget.8168
发表时间: 2016-04-26
期刊: Oncotarget
影响因子: --
作者:
Cao Y;Wei M;Li B;Liu Y;Lu Y;Tang Z;Lu T;Yin Y;Qin Z;Xu Z
通讯作者: Xu Z
DOI: 10.1016/j.cell.2015.10.025
发表时间: 2015-11-05
期刊: Cell
影响因子: 64.5
作者:
Cancer Genome Atlas Research Network
通讯作者: Cancer Genome Atlas Research Network
DOI: 10.1038/labinvest.2016.77
发表时间: 2016-09-01
影响因子: 5
作者:
Attar-Schneider, Oshrat;Drucker, Liat;Gottfried, Maya
通讯作者: Gottfried, Maya