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人类抗凋亡基因bcl-xL的克隆及其在大鼠心肌细胞内的高效表达 被引量:1

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摘要 【目的】克隆人类抗凋亡基因 bcl-xL cDNA,构建两种不同的真核表达载体,评价大鼠心肌细胞表达外源性bcl-xL 的效果,并比较不同转染方法对 bcl-xL 表达的影响。【方法]】RT-PCR 法从人肝脏组织获取 bcl-xL cDNA,连接至pTargeT^(TM)载体,并亚克隆至真核表达载体 pEGFP-C1上;细菌内同源重组构建重组腺病毒质粒,腺病毒纯化试剂盒获取高滴度的重组腺病毒;脂质体和腺病毒介导分别转染体外培养的大鼠心肌细胞,荧光显微镜观察转染效率,RT-PCR 和免疫细胞化学染色法检测 bcl-xL mRNA 和 bcl-xL 蛋白的表达。【结果】获取的 bcl-xL cDNA 测序正确,成功克隆真核表达质粒 pEGFP-bcl-xL;病毒颗粒滴度高达5.3×10^(12)pfu/L;脂质体和腺病毒转染心肌细胞效率分别为40.3%和95.4%,转染后bcl-xL mRNA 和 bel-xL 蛋白的表达均增加,但两种方法之间差异有统计学意义(P<0.01)。【结论】成功获取人类 bcl-xL基因并制备真核表达质粒和重组腺病毒,心肌细胞能高效表达外源性 bcl-xL,并以腺病毒介导更为理想。为 bcl-xL 基因治疗缺血性心脏病提供实验基础。
出处 《中山大学学报(医学科学版)》 CAS CSCD 北大核心 2005年第B03期50-53,共4页 Journal of Sun Yat-Sen University:Medical Sciences
基金 卫生部科研基金(981093)
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参考文献11

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共引文献9

同被引文献8

  • 1易成腊,陈安民,徐卫国,郭风劲,李锋,曾恒,肖骏,杨彩虹.Bcl-xL基因转染对脊髓损伤细胞凋亡的影响[J].中华创伤杂志,2004,20(8):474-478. 被引量:3
  • 2Norihiro M, Hiroyuki Y, Kazuhiro I, et al. Adenovirusmediated gene transfer of Bcl-xL prevents cell death in primary neuronal culture of the rat [J]. Neurosci Lett,1999, 270 (3): 177-80.
  • 3Saraste A, Pulkki K, Kallajoki M, et al. Apoptosis in human acute myocardial infarction [J]. Circulation,1997, 95 (2): 320-3.
  • 4Zhao ZQ, Nakamura M, Wang NP, et al. Repeffusion induces myocardial apoptotic cell death [J]. Cardiovasc Res, 2000, 45 (3): 651-60.
  • 5Olivetti G, Abbi R, Quaini F, et al. Apoptosis in the failing human heart [J]. N Engl J Med, 1997, 336 (16):1131-41.
  • 6Xu B, Sakkas LI, Slachta CA, et al. Apoptosis in chronic rejection of human cardiacallografts [J].Transplantation, 2001, 71 (8): 1137-46.
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  • 8Donna MV, Timothy JK, Angela C, et al. Regulation of bcl-xL expression by H2O2 in cardiac myocytes [J]. J Bio Chem, 2003, 278(28): 25542 - 7.

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