目的:构建携EGFP的人SYNOVIOLIN基因真核表达载体。方法:应用基因重组技术,根据人SYNOVIOLIN基因序列和表达载体pIRES2-EGFP质粒上的多克隆位点设计引物,对含有SYNOVIOLIN基因的质粒pCDNA3.syno扩增,得到约1900bp的目的片段,进行T.A克隆。SalI/BamHI双酶切测序正确的重组质粒,回收SYNOVIOLINcDNA片段,将其亚克隆于pIRES2-EGFP载体的多克隆位点内得到质粒pIRES2-EGFP.syno。脂质体法转染HEK293细胞,用激光共聚焦显微镜和Westernblot检测EGFP和SYNOVIOLIN在HEK293细胞的表达。结果:PCR,酶切及测序结果表明pIRES2-EGFP—syno真核表达载体构建成功,激光共聚焦显微镜和Westernblot显示EGFP和SYNOVIOLIN蛋白在HEK293细胞中成功表达。结论:成功构建pIRES2-EGFP-syno真核表达载体并在HEK293细胞表达,为抗肌腱粘连的SYNOVIOLIN基因治疗研究奠定基础。
Objective: To construct eukaryotic expression vector containing the EGFP-SYNOVIOLIN gene. Methods: According to the sequence of SYNOVIOL1N gene and the multiple clone sites of the expression vector plRES2-EGFP plasmid, a specific pair of primers were designed and synthesize. PCR amplification of SYNOVIOL1N gene from the pCDNA3-syno plasmid was performed, and an approximate 1900bp objective fragment was achieved. The fragment was then cloned into T-A vector. The recombined vector confirmed by sequencing was digested by Sal I/BamH I to obtain SYNOVIOLIN cDNA fragment, then the fragment was subcloned into the multiple sites of plRES2-EGFP vector. The recombinant plasmid plRES2-EGFP-syno was transfected into HEK293 cell by lipofectamine 2000. The result was examined using confocal microscopy. The expression of SYNOVIOLIN was detected by Western blotting. Results: PCR, DNA sequencing and restriction enzyme digestion analysis indicated that the eukaryotic expression vector plRES2-EGFP-syno was constructed successfully. The expression of EGFP can be seen under confocal microscopy. Western blotting proved the protein expression of SYNOVIOLIN in HEK 293 cells. Conclusions: The SYNOVIOL1N cDNA is acquired and the eukaryotic expression vector, plRES2-EGFP-syno is successfully constructed with efficient expression in HEK293 cells, which provide a good experimental basis for further study on the gene therapy of anti-tendon adhesion.