The oncogene eIF4E reprograms the nuclear pore complex to promote mRNA export and oncogenic transformation.
The oncogene eIF4E reprograms the nuclear pore complex to promote mRNA export and oncogenic transformation.
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DOI:
10.1016/j.celrep.2012.07.007
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发表时间:
2012-08-30
期刊:
影响因子:
8.8
通讯作者:
Borden KL
中科院分区:
文献类型:
--
作者:
Culjkovic-Kraljacic B;Baguet A;Volpon L;Amri A;Borden KL
The eukaryotic translation initiation factor eIF4E is a potent oncogene that promotes the nuclear export and translation of specific transcripts. Here, we discovered that eIF4E alters the cytoplasmic face of the nuclear pore complex (NPC) which leads to enhanced mRNA export of eIF4E target mRNAs. Specifically, eIF4E substantially reduces the major component of the cytoplasmic fibrils of the NPC, RanBP2, relocalizes an associated nucleoporin Nup214, and elevates RanBP1 and the RNA export factors, Gle1 and DDX19. Genetic or pharmacological inhibition of eIF4E impedes these effects. RanBP2 overexpression specifically inhibits the eIF4E mRNA export pathway and impairs oncogenic transformation by eIF4E. The RanBP2 cytoplasmic fibrils likely slow the release/recycling of critical export factors to the nucleus. eIF4E overcomes this inhibitory mechanism by indirectly reducing levels of RanBP2. More globally, these studies suggest that reprogramming the NPC is a means by which oncogenes can harness the proliferative capacity of the cell.
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影响因子:
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作者:
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通讯作者:
Borden, KLB
影响因子:
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作者:
Enninga, J;Levy, DE;Fontoura, BMA
通讯作者:
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影响因子:
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作者:
Topisirovic, Ivan;Siddiqui, Nadeem;Borden, Katherine L. B.
通讯作者:
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影响因子:
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作者:
Topisirovic, I;Guzman, ML;Borden, KLB
通讯作者:
Borden, KLB
DOI:
10.1083/jcb.201102018
发表时间:
2011-08-22
期刊:
The Journal of cell biology
影响因子:
--
作者:
Hamada M;Haeger A;Jeganathan KB;van Ree JH;Malureanu L;Wälde S;Joseph J;Kehlenbach RH;van Deursen JM
通讯作者:
van Deursen JM