...
首页> 外文期刊>Cancer letters >Hepatitis C virus Core protein overcomes all-trans retinoic acid-induced cell growth arrest by inhibiting retinoic acid receptor-β2 expression via DNA methylation
【24h】

Hepatitis C virus Core protein overcomes all-trans retinoic acid-induced cell growth arrest by inhibiting retinoic acid receptor-β2 expression via DNA methylation

机译:丙型肝炎病毒核心蛋白通过DNA甲基化抑制视黄酸受体β2表达,从而克服了全反式视黄酸诱导的细胞生长停滞

获取原文
获取原文并翻译 | 示例
           

摘要

Aberrant promoter methylation of tumor suppressor genes including retinoic acid receptor-β2 (RAR-β2) is frequently detected in hepatitis C virus (HCV)-associated hepatocellular carcinoma; however, the mechanism and its significance are relatively unknown. Here, we showed that HCV Core induced promoter hypermethylation of RAR-β2 to inhibit its expression via up-regulation of DNA methyltransferases 1 and 3b. Under the condition, all-trans retinoic acid (ATRA) failed to activate p16 expression and thus could not inactivate the Rb-E2F pathway. Accordingly, Core-expressing cells exhibited resistance to ATRA-induced growth inhibition. Taken together, HCV Core antagonizes ATRA, a natural anti-cancer compound, to stimulate cell growth via epigenetic down-regulation of RAR-β2.
机译:在丙型肝炎病毒(HCV)相关的肝细胞癌中经常检测到包括视黄酸受体-β2(RAR-β2)在内的抑癌基因的异常启动子甲基化。但是,其机理及其意义还相对未知。在这里,我们表明HCV Core通过上调DNA甲基转移酶1和3b来诱导RAR-β2的启动子高度甲基化,从而抑制其表达。在这种情况下,全反式维甲酸(ATRA)无法激活p16表达,因此不能使Rb-E2F途径失活。因此,表达核心的细胞表现出对ATRA诱导的生长抑制的抗性。两者合计,HCV核心拮抗天然抗癌化合物ATRA,通过RAR-β2的表观遗传下调刺激细胞生长。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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