The pre-rRNA processing factor DEF is rate limiting for the pathogenesis of MYCN-driven neuroblastoma.
The pre-rRNA processing factor DEF is rate limiting for the pathogenesis of MYCN-driven neuroblastoma.
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rRNA前体加工因子DEF是MYCN驱动的神经母细胞瘤发病机制的速率限制
DOI:
10.1038/onc.2016.527
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发表时间:
2017-07-06
期刊:
影响因子:
8
通讯作者:
Look AT
中科院分区:
文献类型:
--
作者:
Tao T;Sondalle SB;Shi H;Zhu S;Perez-Atayde AR;Peng J;Baserga SJ;Look AT
The nucleolar factor, digestive organ expansion factor (DEF), has a key role in ribosome biogenesis, functioning in pre-ribosomal RNA (pre-rRNA) processing as a component of the small ribosomal subunit (SSU) processome. Here we show that the peripheral sympathetic nervous system (PSNS) is very underdeveloped in def-deficient zebrafish, and that def haploinsufficiency significantly decreases disease penetrance and tumor growth rate in a MYCN-driven transgenic zebrafish model of neuroblastoma that arises in the PSNS. Consistent with these findings, DEF is highly expressed in human neuroblastoma, and its depletion in human neuroblastoma cell lines induces apoptosis. Interestingly, overexpression of MYCN in zebrafish and in human neuroblastoma cells results in the appearance of intermediate pre-rRNAs species that reflect the processing of pre-rRNAs through Pathway 2, a pathway that processes pre-rRNAs in a different temporal order than the more often used Pathway 1. Our results indicate that DEF and possibly other components of the SSU processome provide a novel site of vulnerability in neuroblastoma cells that could be exploited for targeted therapy.
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影响因子:
3.7
作者:
George RE;Attiyeh EF;Li S;Moreau LA;Neuberg D;Li C;Fox EA;Meyerson M;Diller L;Fortina P;Look AT;Maris JM
通讯作者:
Maris JM
影响因子:
4.5
作者:
Griffin JN;Sondalle SB;Del Viso F;Baserga SJ;Khokha MK
通讯作者:
Khokha MK
影响因子:
64.8
作者:
Gandin, Valentina;Miluzio, Annarita;Barbieri, Anna Maria;Beugnet, Anne;Kiyokawa, Hiroaki;Marchisio, Pier Carlo;Biffo, Stefano
通讯作者:
Biffo, Stefano
影响因子:
21.3
作者:
Grewal, SS;Li, L;Edgar, BA
通讯作者:
Edgar, BA
影响因子:
4.5
作者:
Charette, J. Michael;Baserga, Susan J.
通讯作者:
Baserga, Susan J.