首页> 外文OA文献 >Oncogenic S1P signalling in EBV-associated nasopharyngeal carcinoma activates AKT and promotes cell migration through S1P receptor 3
【2h】

Oncogenic S1P signalling in EBV-associated nasopharyngeal carcinoma activates AKT and promotes cell migration through S1P receptor 3

机译:EBV相关鼻咽癌中的致癌s1p信号激活aKT并通过s1p受体3促进细胞迁移

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Undifferentiated nasopharyngeal carcinoma (NPC) is a cancer with high metastatic potential that is consistently associated with Epstein-Barr virus (EBV) infection. In this study, we have investigated the functional contribution of sphingosine-1-phosphate (S1P) signalling to the pathogenesis of NPC. We show that EBV infection or ectopic expression of the EBV-encoded latent genes (EBNA1, LMP1 and LMP2A) can up-regulate sphingosine kinase 1 (SPHK1), the key enzyme that produces S1P, in NPC cell lines. Exogenous addition of S1P promotes the migration of NPC cells through the activation of AKT; shRNA knockdown of SPHK1 resulted in a reduction in the levels of activated AKT and inhibition of cell migration. We also show that S1P receptor 3 (S1PR3) mRNA is over-expressed in EBV-positive NPC patient-derived xenografts and a subset of primary NPC tissues, and that knockdown of S1PR3 suppressed the activation of AKT and the S1P-induced migration of NPC cells. Taken together, our data point to a central role for EBV in mediating the oncogenic effects of S1P in NPC and identify S1P signalling as a potential therapeutic target in this disease.
机译:未分化的鼻咽癌(NPC)是与被一致地用Epstein-Barr病毒(EBV)感染相关的高转移的癌症。在这项研究中,我们已经调查鞘氨醇-1-磷酸(S1P)信号的鼻咽癌发病机制中的职能作用。我们表明,EBV感染或EBV编码的潜基因(EBNA1,LMP1和LMP2A)的异位表达可以上调鞘氨醇激酶1(SPHK1),产生S1P,鼻咽癌细胞系中的关键酶。外源性添加S1P的促进通过AKT的活化NPC细胞的迁移; SPHK1的shRNA的敲低导致AKT活化和细胞迁移的抑制的水平的降低。我们还表明,S1P受体3(S1PR3)mRNA在EBV阳性NPC患者来源的异种移植物和初级鼻咽癌组织的一个子集的过表达,并且S1PR3的敲低抑制AKT的激活和NPC的S1P诱导的迁移细胞。总之,我们的数据点在介导S1P在鼻咽癌的致癌作用,并确定S1P信号在这种疾病的潜在治疗目标EBV核心作用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号