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Hydrogel based lipid-oligonucleotides: a new route to self-delivery of therapeutic sequences

机译:基于水凝胶的脂质 - 寡核苷酸:用于自我递送治疗序列的新途径

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摘要

Synthetic OligoNucleotides (ON) provide promising therapeutic tools for controlling specifically genetic expression in a broad range of diseases from cancers to viral infections. Beside their chemical stability and intracellular delivery, the controlled release of therapeutic sequences remains an important challenge for successful clinical applications. In this work, Lipid-OligoNucleotide (LON) conjugates stabilizing hydrogels are reported and characterized by rheology and cryo-scanning electron microscopy (cryo-SEM). These studies revealed that lipid conjugation of antisense oligonucleotides featuring partial self-complementarity resulted in entangled pearl-necklace networks, which were obtained through micelle-micelle interaction driven by duplex formation. Owing to these properties, the Lipid AntiSense Oligonucleotide (LASO) sequences exhibited a prolonged release after subcutaneous administration compared to the non-lipidic antisense (ASO) one. The LASO self-assembly based hydrogels obtained without adjuvant represent an innovative approach for the sustained self-delivery of therapeutic oligonucleotides.
机译:合成寡核苷酸(ON)提供了有希望的治疗工具,用于控制来自癌症的广泛疾病中的特异性遗传表达至病毒感染。除了化学稳定性和细胞内递送之外,治疗序列的受控释放仍然是成功临床应用的重要挑战。在这项工作中,通过流变学和低温扫描电子显微镜(Cryo-Sem)报告并表征脂质 - 寡核苷酸(LON)偶核苷酸(LON)缀合物稳定水凝胶。这些研究表明,反义寡核苷酸的脂质缀合,其具有部分自互补性导致缠结的珍珠项链网络,通过通过双链体形成驱动的胶束 - 胶束相互作用获得。由于这些性质,与非脂质反义(ASO)1相比,脂质反义寡核苷酸(Laso)序列在皮下施用后延长释放。在没有佐剂的情况下获得的Laso自组装基水凝胶代表了治疗寡核苷酸的持续自我递送的创新方法。

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  • 来源
    《Biomaterials Science》 |2021年第10期|共7页
  • 作者单位

    Univ Bordeaux CNRS INSERM U1212 UMR 5320 F-33076 Bordeaux France;

    Univ Bordeaux CNRS INSERM U1212 UMR 5320 F-33076 Bordeaux France;

    Univ Bordeaux CNRS INSERM U1212 UMR 5320 F-33076 Bordeaux France;

    Univ Bordeaux Bordeaux Imaging Ctr CNRS INSERM UMS3420 US4 Bordeaux France;

    Univ Bordeaux Bordeaux Imaging Ctr CNRS INSERM UMS3420 US4 Bordeaux France;

    Aix Marseille Univ Inst Paoli Calmettes Ctr Rech Cancerol Marseille CNRS INSERM CRCM UMR1068 UMR7258 U105 Marseille France;

    Univ Bordeaux CNRS INSERM U1212 UMR 5320 F-33076 Bordeaux France;

    Univ Bordeaux CNRS INSERM U1212 UMR 5320 F-33076 Bordeaux France;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 分子生物学;
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