微调正表面电荷碳点,以实现高效和低细胞毒性基因传递
Shuo Zhang1, Yangming Zhou1, Qi Zhang1
1Shanxi Key Laboratory of Artificial Intelligence & Micro Nano Sensors, School of Integrated Circuit, Taiyuan University of Technology, Taiyuan 030024, China.
Nanomaterials (Basel, Switzerland)
|February 12, 2026
概括
带正电荷的碳点 (CD) 显示出作为骨关节炎治疗的安全,高效的基因传递载体的希望. 与商业选择相比,优化的CDs-3表现出优异的转染和调节胆红细胞中的关键通路.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 基因治疗 基因治疗
背景情况:
- 碳点 (CD) 正在成为生物相容,非病毒基因传递载体.
- 它们的可调的表面特性,特别是泽塔潜力,对于有效的基因传递至关重要.
- 骨关节炎 (OA) 对健康造成重大负担,需要先进的治疗策略.
研究的目的:
- 为了合成和表征碳点 (CDs) 具有不同的正泽塔潜力用于基因传递.
- 评估基于CD的优化系统的有效性和安全性,用于输送小干扰RNA,以印度刺 (Ihh) 途径为目标.
- 评估这种新型载体在骨关节炎基因治疗中的潜力.
主要方法:
- 四个CD的水热合成,具有渐变阳性泽塔电位.
- 使用GFP等离子体输送对CD的细胞毒性和转染效率的表征.
- 在正常和IL-1β诱导的ATDC5红细胞中构建CDs-3/siIhh输送系统并进行体外评估.
- 评估印度刺 (Ihh) 信号通路和OA相关标记器的监管.
主要成果:
- 成功合成了具有从7.23mV到34.5mV的泽塔电位的CD.
- CDs-3 (25.3 mV) 呈现出超低的细胞毒性 (>80%的活力在50μg/mL) 和近100%的GFP等离子体的转染效率.
- 与Lipo2000/siIhh和PEI/siIhh相比,CDs-3/siIhh系统显示出IHH通路和OA标记在冠状细胞中的优异调节.
- 观察到CDs-3在软骨细胞中的有效细胞内化.
结论:
- 优化的正电荷碳点 (CDs-3) 作为一种安全且高效的非病毒基因传递载体.
- CDs-3/siIhh系统有效地调节阴茎细胞中的IHH信号通路和OA标记物.
- 这种基于CD的新型载体由于其安全性和有效性,具有促进骨关节炎基因治疗的巨大潜力.
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