Shp2 suppresses PyMT-induced transformation in mouse fibroblasts by inhibiting Stat3 activity.

Shp2 suppresses PyMT-induced transformation in mouse fibroblasts by inhibiting Stat3 activity.
复制标题

DOI:
10.1016/j.virol.2010.09.032
复制
发表时间:
2011-01-20
期刊:
影响因子:
3.7
通讯作者:
Luo J
Luo J
中科院分区:
医学3区
文献类型:
--
作者:
Yang Y;Jiang B;Huo Y;Primo L;Dahl JS;Benjamin TL;Luo J

文献摘要

参考文献

被引文献

相似文献

我们研究了蛋白酪氨酸磷酸酶Shp2 的表达对小鼠多瘤病毒中T 抗原(PyMT) 转化的影响。 Shp2 的功能获得突变表明它可能是多种类型人类白血病的癌基因。然而,矛盾的是,在白血病和神经母细胞瘤中也发现了 Shp2 的一些催化显性阴性突变。在这项研究中,我们表明,Shp2 抑制 PyMT 诱导的转化,PyMT 是已知通过结合和激活 pp60c-src 发挥作用的主要多瘤病毒癌蛋白。 NIH3T3 细胞中催化失活的 Shp2 突变体的过度表达显着增强了 PyMT 诱导的转化。相反,将Shp2重新引入Shp2缺陷细胞中会强烈抑制PyMT诱导的转化和肿瘤发生。短发夹 RNA (shRNA) 介导的 Shp2 敲低增强了 PyMT 诱导的转化。最后,我们提供的证据表明,Shp2 的转化抑制作用至少部分是通过抑制信号转导子和转录激活子 3 介导的。
We have examined the effect of expression of the protein tyrosine phosphatase Shp2 on transformation by the mouse polyoma virus middle T antigen (PyMT). Gain-of-function mutations in Shp2 indicate it may serve as an oncogene in several types of human leukemia. Paradoxically, however, some catalytically dominant negative mutations of Shp2 have also been identified in leukemia and neuroblastomas. In this study, we show that Shp2 suppresses transformation induced by PyMT, the major polyoma viral oncoprotein known to act through binding and activation of pp60c-src. Over-expression of a catalytically inactive Shp2 mutant in NIH3T3 cells significantly enhanced PyMT-induced transformation. Conversely, re-introduction of Shp2 into Shp2-deficient cells strongly inhibited PyMT-induced transformation and tumorigenesis. Short hairpin RNA (shRNA)-mediated Shp2 knockdown potentiated PyMT-induced transformation. Finally, we present evidence that the transformation-suppressive effects of Shp2 are mediated at least partially through the inhibition of signal transducers and activators of transcription 3.
DOI: 10.1093/emboj/20.22.6327
发表时间: 2001-11-15
期刊: EMBO JOURNAL
影响因子: 11.4
作者:
Ong, SH;Dilworth, S;Kiefer, F
通讯作者: Kiefer, F
DOI: 10.1038/sj.onc.1206742
发表时间: 2003-09-25
期刊: ONCOGENE
影响因子: 8
作者:
Ischenko, I;Petrenko, O;Hayman, MJ
通讯作者: Hayman, MJ
DOI: 10.1016/j.neuron.2007.03.027
发表时间: 2007-04-19
期刊: NEURON
影响因子: 16.2
作者:
Gauthier, Andree S.;Furstoss, Olivia;Miller, Freda D.
通讯作者: Miller, Freda D.
DOI: 10.1128/jvi.60.3.1075-1084.1986
发表时间: 1986-12-01
影响因子: 5.4
作者:
PALLAS, DC;SCHLEY, C;ROBERTS, TM
通讯作者: ROBERTS, TM
DOI: 10.1016/j.semcancer.2009.03.002
发表时间: 2009-08
影响因子: 14.5
作者:
Cheng J;DeCaprio JA;Fluck MM;Schaffhausen BS
通讯作者: Schaffhausen BS