Activation of the brain-specific neurogranin gene in murine T-cell lymphomas by proviral insertional mutagenesis.

Activation of the brain-specific neurogranin gene in murine T-cell lymphomas by proviral insertional mutagenesis.
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DOI:
10.1016/j.gene.2009.04.003
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发表时间:
2009-08-01
期刊:
影响因子:
3.5
通讯作者:
Pedersen FS
Pedersen FS
中科院分区:
生物学3区
文献类型:
--
作者:
Nielsen AA;Kjartansdóttir KR;Rasmussen MH;Sørensen AB;Wang B;Wabl M;Pedersen FS

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神经颗粒蛋白(Nrgn)是一种高表达的脑特异性蛋白,在低Ca2+水平下与钙调蛋白隔离。我们在此报道了由t细胞淋巴瘤原性SL3-3小鼠白血病病毒诱导的肿瘤中Nrgn基因的逆转录病毒激活。我们对Nrgn在多种小鼠组织和SL3-3诱导的t细胞肿瘤中的表达进行了系统分析。这表明Nrgn的插入激活增加了RNA和蛋白质的表达水平,与在大脑中观察到的相同。此外,在一些未检测到原病毒整合到该基因组区域的t细胞肿瘤中也观察到Nrgn表达升高。目前的数据表明,Nrgn可以在脑外高水平产生,并提示在小鼠t细胞淋巴瘤中具有新的致癌作用。
Neurogranin (Nrgn) is a highly expressed brain-specific protein, which sequesters calmodulin at low Ca2+-levels. We report here on retroviral activation of the Nrgn gene in tumors induced by the T-cell lymphomagenic SL3-3 murine leukemia virus. We have performed a systematic expression analysis of Nrgn in various mouse tissues and SL3-3 induced T-cell tumors. This demonstrated that insertional activation of Nrgn increased RNA and protein expression levels to that observed in brain. Furthermore, elevated Nrgn expression was also observed in some T-cell tumors with no detected provirus integrations into this genomic region. The presented data demonstrate that Nrgn can be produced at high levels outside the brain, and suggest a novel oncogenic role in T-cell lymphomas in mice.
精子蛋白17在人类神经系统肿瘤中表达。
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