吴伟刚,刘妙娜,刘利平.CENPK基因过表达载体的构建及鉴定[J].中国肿瘤,2015,24(6):505-509. |
CENPK基因过表达载体的构建及鉴定 |
Construction and Identification of CENPK Gene Overexpressed Vector |
投稿时间:2014-09-10 |
DOI:10.11735/j.issn.1004-0242.2015.06.A015 |
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中文关键词: CENPK基因 过表达 真核表达载体 肝癌FOCUS细胞 |
英文关键词:CENPK gene overexpression eukaryotic expression vector hepatoma FOCUS cells |
基金项目:国家自然科学基金(81372227);深圳市科技计划项目(CXZZ20130515163643) |
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中文摘要: |
摘 要:[目的] 构建着丝粒蛋白K (cetromere protein K,CENPK)基因过表达载体,并对其在肝癌FOCUS细胞中的表达进行鉴定。[方法] ①从人肝癌组织中扩增出CENPK目的基因并将其克隆到pCMV-3Tag-3载体上,构建真核表达载体pCMV-CENPK;②利用脂质体法将构建好的pCMV-CENPK真核表达载体转染肝癌FOCUS细胞,并用G418筛选出CENPK基因稳定过表达的肝癌FOCUS细胞株;③通过Real-time PCR及Western Blot的方法对筛选出来的细胞进行鉴定。[结果] ①经双酶切分析及测序验证,成功构建了真核表达载体pCMV-CENPK。②通过Real-time PCR及Western blot的方法鉴定,CENPK基因在筛选出来的肝癌FOCUS细胞株中成功过表达。[结论] 成功构建真核表达载体pCMV-CENPK并使其在肝癌FOCUS细胞中稳定过表达,为进一步研究CENPK基因在肝癌发生发展中的作用奠定了基础。 |
英文摘要: |
Abstract:[Purpose] To construct CENPK gene overexpressed vector and to identify its expression in liver cancer FOCUS cells. [Methods] Amplify the CENPK gene from liver cancer tissues of human,and cloned it into pCMV-3Tag-3 vector,to construct eukaryotic expression vector pCMV-CENPK,then to transfect it into FOCUS cells by lipofection method,and to select it by G418. Cells selected by G418 were confirmed by Real-time PCR and Western Blot. [Results] Being verified with double endonuclease digestion and DNA sequencing,the eukaryotic expression vector pCMV-CENPK was successfully constructed. The FOCUS cells selected by G418 were successfully overexpressing CENPK gene,which was confirmed by Real-time PCR and Western blot. [Conclusion] The eukaryotic expression vector pCMV-CENPK is successfully constructed and was stably overexpressed on FOCUS cells,which lay the foundation for further study of CENPK gene on the role of carcinogenesis and progress of liver cancer. |
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