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A gene delivery system containing nuclear localization signal: Increased nucleus import and transfection efficiency with the assistance of RanGAP1

机译:含有核定位信号的基因递送系统:在Rangap1的帮助下增加核心进口和转染效率

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摘要

In the present report, a degradable gene delivery system (PAMS/DNA/1 0NLS) containing nucleus location signal peptide (NLS) was prepared. The agarose gel electrophoresis, particle size and zeta potential of PAMS/DNA/10NLS were similar to those of PAMS/DNA, which proved that NLS did not affect the interaction between PAMS and DNA. PAMS/DNA/10NLS exhibited marked extracellular and intracellular degradation under acidic conditions. The degradation was believed to allow NLS to come into contact with importins easily, which was able to mediate the nucleus import. With the help of NLS, PAMS/ DNA/10NLS exhibited a higher transfection capability than PAMS/DNA. Moreover, the transfection of PAMS/DNA/10NLS was less dependent on the breakdown of the nucleus envelope than PAMS/DNA. Considering that GTPase-activating protein 1 (RanGAP1) was able to activate the endogenous GTPase, which was necessary for NLS-mediated nucleus import, RanGAP1 overexpressed cells (RanGAP1 cells) were produced. This result showed that RanGAP1 cells had higher GTPase activities than normal cells. Both the nucleus import and transfection efficiency of PAMS/DNA/10NLS were markedly higher in RanGAP1 cells than that in normal cells. The in vivo transfection results also showed that the transfection efficiency of PAMS/DNA/10NLS was higher in RanGAP1 pre-treated mice than that in normal mice. These findings showed that PAMS/DNA/10NLS is a promising gene delivery system with the assistance of RanGAP1. Statement of Significance The present report describes the increased transfection efficiency of a degradable gene delivery system (PAMS/DNA/10NLS) containing nuclear location signal (NLS) with the assistance of GTPase-activating protein 1 (RanGAP1). The physicochemical properties of PAMS/DNA/10NLS were similar to those of PAMS/DNA. PAMS/DNA/10NLS exhibited great extracellular and intracellular degradations, which might allow NLS to contact with importins easily. With the help of NLS, PAMS/DNA/10NLS exhibited a higher transfection capability than PAMS/DNA. The transfection of PAMS/DNA/10NLS had less dependence on the breakdown of nuclear envelope. Both the nuclear import and transfection efficiency of PAMS/ DNA/10NLS were higher in RanGAP1 overexpressed cells than that in normal cells. Moreover, the transfection efficiency of PAMS/DNA/lONLS was higher in RanGAP1 pre-treated mice than that in normal mice. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
机译:在本报告中,制备含有核位置信号肽(NLS)的可降解基因递送系统(PAMS / DNA / 1 0NL)。 PAM / DNA / 10NLS的琼脂糖凝胶电泳,粒度和ζ电位与PAM / DNA的血液相似,证明NLS不影响PAM和DNA之间的相互作用。 PAMS / DNA / 10NLs在酸性条件下表现出显着的细胞外和细胞内降解。据信允许NLS容易地与Importins接触,这能够介导细胞核。借助NLS,PAMS / DNA / 10NLS表现出比PAM / DNA更高的转染能力。此外,PAMS / DNA / 10NLs的转染较小依赖于核囊膜的击穿而不是PAMS / DNA。考虑到GTPase-Activating蛋白1(RANGAP1)能够激活内源性GTP酶,这对于NLS介导的核进口是必需的,产生了RANGAP1过表达细胞(RANGAP1细胞)。该结果表明,RangAP1细胞具有比正常细胞更高的GTP酶活性。 PAMS / DNA / 10NLs的核进口和转染效率在rangap1细胞中显着高于正常细胞中的效率。体内转染结果也表明,在RangaP1预处理的小鼠中,PAMS / DNA / 10NLs的转染效率高于正常小鼠。这些发现表明,具有RangaP1的辅助的PAMS / DNA / 10NLS是一个有前途的基因递送系统。重要性陈述本报告描述了在GTPA酶激活蛋白1(RANGAP1)的辅助下含有核定位信号(NLS)的可降解基因递送系统(PAMS / DNA / 10NLs)的转染效率。 PAMS / DNA / 10NLs的物理化学性质与PAM / DNA的物理化学性质类似。 PAMS / DNA / 10NLS表现出极高的细胞外和细胞内降解,这可能允许NL容易地与Importins接触。借助NLS,PAMS / DNA / 10NLS表现出比PAM / DNA更高的转染能力。 PAMS / DNA / 10NLs的转染对核封局的分解依赖性依赖性。 PAMS / DNA / 10NLs的核进口和转染效率均在rangap1过表达细胞中的较高比正常细胞中的细胞更高。此外,在RangAP1预处理的小鼠中,PAM / DNA / LONLs的转染效率高于正常小鼠。 (c)2016 Acta Materialia Inc. elsevier有限公司出版。保留所有权利。

著录项

  • 来源
    《Acta biomaterialia》 |2017年第2017期|共12页
  • 作者单位

    Shenyang Pharmaceut Univ Sch Pharm Dept Pharmaceut 103 Wenhua Rd Shenyang 110016 Peoples R;

    Shenyang Kehai Biomed Technol Co LTD Shenyang 110117 Peoples R China;

    Shenyang Pharmaceut Univ Sch Pharm Dept Pharmaceut 103 Wenhua Rd Shenyang 110016 Peoples R;

    Shenyang Pharmaceut Univ Sch Pharm Dept Pharmaceut 103 Wenhua Rd Shenyang 110016 Peoples R;

    Shenyang Pharmaceut Univ Sch Pharm Dept Pharmaceut 103 Wenhua Rd Shenyang 110016 Peoples R;

    Shenyang Pharmaceut Univ Sch Pharm Dept Pharmaceut 103 Wenhua Rd Shenyang 110016 Peoples R;

    Shenyang Pharmaceut Univ Sch Pharm Dept Pharmaceut 103 Wenhua Rd Shenyang 110016 Peoples R;

    Shenyang Pharmaceut Univ Sch Pharm Dept Pharmaceut 103 Wenhua Rd Shenyang 110016 Peoples R;

    Shenyang Pharmaceut Univ Sch Pharm Dept Pharmaceut 103 Wenhua Rd Shenyang 110016 Peoples R;

    Shenyang Pharmaceut Univ Sch Pharm Dept Pharmaceut 103 Wenhua Rd Shenyang 110016 Peoples R;

    Shenyang Pharmaceut Univ Sch Pharm Dept Pharmaceut 103 Wenhua Rd Shenyang 110016 Peoples R;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 普通生物学;
  • 关键词

    Degradable gene delivery system; Nucleus import; Nucleus location signal; RanGAP1; Transfection;

    机译:可降解基因递送系统;核进口;核位置信号;RANGAP1;转染;

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