首页> 外文期刊>Eastern Journal of Medicine >Overexpression of Insulin Receptor Substrate 1 (IRS1) Promotes Radioresistance in A172 Glioblastoma Cell Line
【24h】

Overexpression of Insulin Receptor Substrate 1 (IRS1) Promotes Radioresistance in A172 Glioblastoma Cell Line

机译:胰岛素受体底物1(IRS1)的过表达促进A172胶质母细胞瘤细胞系中的放射抗性。

获取原文
           

摘要

Overexpression of Insulin Receptor Substrate 1 (IRS1) Promotes Radioresistance in A172 Glioblastoma Cell Line Gokhan Gorgisen sup1/sup, Tahir ?ak?r sup2/sup, can ate? sup3/sup, Ismail Musab GULACAR sup1/sup, Zafer Yaren sup1/sup sup1/supDepartment of Medical Biology, Faculty of Medicine, Van Yuzuncu Yil University, Van, Turkey sup2/supDepartment of Biophysics, Van Yuzuncu Yil University, Van, Turkey sup3/supDepartment of Biostatistics,Van Yuzuncu Yil University, Van, Turkey INTRODUCTION: Insulin receptor substrate 1 (IRS1) is the main adaptor molecule in insulin and insulin like growth factor signaling. Increased level of expression of IRS1 and IGF-1R proteins are associated with many human malignancies. They also induced resistance to therapeutic approaches such as chemo- and radiotherapy in cancer treatment but their molecular mechanisms are still unclear. Glioblastoma Multiforme (GBM) is the most common primary brain tumor in adults and radiotherapy has a pivotal role in its treatment. In this study, it is aimed to determine the relationship between IRS1 expression and radiosensitivity of GBM cells. METHODS: Therefore, A172 cells transfected with pcDNA3.1-HA-tagged human IRS1 gene. Its overexpression was confirmed by western blot. IRS1 overexpressed A172 cells were irradiated with 5,8 and 10 Gray ionizing radiation and their effects on cell viability determined by MTT and clonogenic assay. RESULTS: Our results showed that overexpression of IRS1 led a decrease on sensitivity of the radiation in GBM cells. DISCUSSION AND CONCLUSION: As a conclusion, this study should be confirmed by further molecular analysis and in vivo studies. IRS1 may be a predictive marker of radiosensitivity for GBM.
机译:胰岛素受体底物1(IRS1)的过表达促进A172胶质母细胞瘤细胞系Gokhan Gorgisen 1 ,Tahir?ak?r 2 的抗辐射能力,可以吃吗? 3 ,Ismail Musab GULACAR 1 ,Zafer Yaren 1 1 医学系医学生物学系Van Yuzuncu土耳其范伊尔大学 2 范·范祖尊库土耳其范伊祖库大学宜尔大学范范·祖祖库·伊尔大学生物统计学系,土耳其范·范祖尊库简介:胰岛素受体底物1(IRS1)是胰岛素和胰岛素样生长因子信号传导中的主要衔接子分子。 IRS1和IGF-1R蛋白表达水平的提高与许多人类恶性肿瘤有关。他们还在癌症治疗中诱导了对化学疗法和放射疗法等治疗方法的耐药性,但其分子机制仍不清楚。多形胶质母细胞瘤(GBM)是成人中最常见的原发性脑肿瘤,放疗在其治疗中具有举足轻重的作用。在这项研究中,旨在确定IRS1表达与GBM细胞放射敏感性之间的关系。方法:因此,用pcDNA3.1-HA标签的人IRS1基因转染了A172细胞。通过蛋白质印迹证实其过表达。用5,8和10 Gray电离辐射辐照IRS1过表达的A172细胞,并通过MTT和克隆形成试验确定其对细胞活力的影响。结果:我们的结果表明IRS1的过度表达导致GBM细胞辐射敏感性降低。讨论与结论:结论是,该研究应通过进一步的分子分析和体内研究得到证实。 IRS1可能是GBM放射敏感性的预测指标。

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