|Table of Contents|

Establishment of SLC22A18 drug-resistant gene in glioma cells and investigation of its drug resistance mechanism

Journal Of Modern Oncology[ISSN:1672-4992/CN:61-1415/R]

Issue:
2019 05
Page:
719-722
Research Field:
Publishing date:

Info

Title:
Establishment of SLC22A18 drug-resistant gene in glioma cells and investigation of its drug resistance mechanism
Author(s):
Yang BiaoChu ShenghuaMa Yanbin
Departmet of Neurosurgery,Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine,Shanghai 201999,China.
Keywords:
SLC22A18gene therapygliomadrug resistance
PACS:
R730.264
DOI:
10.3969/j.issn.1672-4992.2019.05.002
Abstract:
Objective:To investigate the drug resistance mechanism involved in acquiring the SLC22A18 drug-resistant gene in huma glioma U251 cell line.Methods:Human glioma U251 cells were repeatedly treated with adenovirus-mediated SLC22A18 gene (Ad/SLC22A18),and U251-SLC22A18/R cells resistant to Ad/SLC22A18 were obtained.The cell growth was analyzed using MTT method.The expression of some proteins involved in apoptosis pathway was measured by Western blot analysis.Then the mechanism involved in acquiring drug resistance was analyzed.Results:U251-SLC22A18/R cells resistant to SLC22A18 were obtained from SLC22A18-sensitive U251 parent cells.But they were still sensitive to adenovirus-mediated Bax gene therapy.Further studies demonstrated that expression of Bcl-XL was significantly upregulated whereas caspase-8 was dramatically downregulated in U251-SLC22A18/R cells,and there was no cleaved caspase-8 found in the U251-SLC22A18/R cells.Conclusion:After Ad/SLC22A18 repeated treatment,U251 cells could acquire the resistance to SLC22A18 gene.The possible mechanism may involve upregulation of Bcl-XL and downregulation of caspase-8.

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Memo

Memo:
教育部留学回国人员科研启动基金项目(编号:082003);上海市卫生和计划生育委员会科研基金面上项目(编号:201540266);上海交通大学医工交叉研究基金项目(编号:YG2015MS25);上海交通大学医学院附属第三人民医院自然科学研究基金项目(编号:syz2015-015)
Last Update: 2019-02-01