基托/dsRNA多复合纳米颗粒通过激活克拉特林依赖性内分细胞分裂来提高环境RNA干扰效率
Hong Zhou1, Fenglin Wan1, Yufan Jian1
1Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, PR China.
International journal of biological macromolecules
|September 23, 2023
概括
奇托纳米颗粒通过传递dSRNA来增强RNA干扰 (RNAi). 它们通过与克拉特林重链结合来激活克拉特林依赖性内细胞分裂,促进害虫控制和基因治疗的基因沉默.
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:
- 奇托是RNA干扰 (RNAi) 的一个有前途的纳米载体.
- 基托/dsRNA多复合纳米颗粒 (PNs) 增强dsRNA传递的分子机制尚不清楚.
- 有效的dsRNA传递对于成功的RNAi应用至关重要.
研究的目的:
- 阐明基托/dsRNA PN 增强 dsRNA 传递和 RNAi 效率的分子机制.
- 为了研究内细胞突变途径在基托介导的dsrna传递中的作用.
- 证实基托/dsRNA PNs与参与细胞吸收的关键蛋白之间的直接相互作用.
主要方法:
- 通过静电吸引来制备基托/dsRNA PNs.
- 评估PNs的稳定性,细胞吸收和RNAi效率.
- RNA测序 (RNA-Seq) 和定量实时PCR (qPCR) 用于识别基因表达变化.
- 通过使用 хлорпромазин 和 RNAi-of-RNAi 策略来抑制克拉素依赖性内细胞结合 (CDE).
- 微尺度热泳试验以确认蛋白质结合.
主要成果:
- 素/dsRNA PNs显著改善了dsRNA稳定性,细胞吸收和RNAi效率.
- RNA-Seq和qPCR显示了克拉特林重链 (CHC) 基因的上调,表明了CDE通路的激活.
- 抑制CDE显著降低了基托/dsRNAPNs介导的RNAi反应.
- 微尺度热泳证实了基托/dsRNA PNs与CHC蛋白直接结合.
结论:
- 素/dsRNA PNs通过直接与CHC结合来激活CDE途径来提高RNAi的效率.
- 这项研究阐明了基托为RNAi提供dSRNA的分子机制.
- 这些发现支持基于纳米载体的RNAi在害虫管理和基因传递中的更广泛应用.
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