基于的药物输送系统的细胞吸收和贩运用于miRNA
Ivana Ruseska1, Andreas Zimmer1
1Department of Pharmaceutical Technology and Biopharmacy, Institute of Pharmaceutical Sciences, University of Graz, Universitätsplatz 1, 8010 Graz, Austria.
概括
细胞透 (CPPs) 与microRNAs (miRNAs) 形成纳米粒子,以提高治疗效果. 这些纳米颗粒对miRNA替代疗法,特别是与肥胖相关的疾病有前途.
科学领域:
- 生物技术是生物技术.
- 纳米医学是一种纳米医学.
- 分子生物学分子生物学
背景情况:
- 像microRNAs (miRNAs) 这样的宏分子疗法在稳定性,细胞吸收和点特异性方面面临挑战.
- 细胞透 (CPPs) 提供了一种有前途的解决方案,可以将大分子输入细胞.
研究的目的:
- 研究和理解两种类型的miRNA载纳米粒子的内化机制.
- 评估这些纳米颗粒在miRNA替代疗法的治疗潜力.
主要方法:
- 使用与miRNA-27a.复合的质氨酸 (富含氨酸的CPP) 和N-Ter (富含氨酸的两性CPP) 制造纳米粒子.
- 纳米颗粒的表征 (大小,泽塔潜力) 和评估3T3-L1预adipocytes中的细胞毒性.
- 使用时间,度,温度和使用内分细胞抑制剂的摄入研究;评估miRNA-27a的抗基效应.
主要成果:
- 质氨酸和N-Ter通过非共价复合形成与miRNA-27a带有正电荷的纳米粒子.
- 纳米颗粒的吸收取决于时间,度和温度,涉及不同的内细胞通路.
- 这两种纳米粒子类型都促进了miRNA-27a在前脂肪细胞中的抗基效应.
结论:
- 质氨酸和N-Ter纳米颗粒有效地将miRNA-27a输送到细胞中.
- 这种基于纳米粒子的方法代表了用于治疗肥胖和相关疾病的miRNA替代疗法的新策略.
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