基于CD44受体驱动的氧化石墨烯基纳米载体用于癌症治疗
Ludmila Žárská1, Michaela Gapčová2, Zuzana Chaloupková1
1Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, Slechtitelu 26, Olomouc 779 00, Czech Republic.
Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie
|January 28, 2026
概括
氨酸 (HA) 功能化石墨烯氧化物 (GO) 纳米载体通过与CD44受体相互作用来增强向药物递送. 这提高了CD44表达细胞的抗癌疗效,证明了精确癌症治疗的潜力.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 癌症生物学 癌症生物学
背景情况:
- 氨酸 (HA) 和CD44受体相互作用对于瘤细胞的识别和药物吸收至关重要.
- 石墨烯氧化物 (GO) 纳米平台为向药物输送提供了潜力.
研究的目的:
- 为了研究HA的功能化和度如何影响GO纳米载体的生物行为,用于多克索鲁比 (DOX) 输送.
- 为了比较不同CD44表达水平的细胞系中HA功能化的GO纳米载体的疗效.
主要方法:
- 在不同度下通过PEGylation和HA结合制备GO纳米平台.
- 在纳米载体上加载多克索鲁比 (DOX).
- 使用光谱和显微分析进行表征.
- 在CD44+和CD44−细胞系中评估细胞吸收,细胞毒性和抗癌活性.
主要成果:
- HA功能化增强了CD44介导的细胞吸收,并增加了CD44+HT-1080细胞中的抗癌活性.
- 只有GO@PEG载体表现出最小的细胞毒性,表明良好的生物相容性.
- CD44-SKBR3细胞的吸收有限,活力更高,与CD44表达率较低相关.
- 同焦显微镜和拉曼光谱学证实了纳米载体的细胞内积累和周核定位.
结论:
- 在改善基于GO的纳米平台的特异性,细胞吸收和安全性方面,HA发挥着重要作用.
- CD44受体水平极大地影响了向纳米载体的治疗效率.
- 该研究支持开发针对受体的生物相容纳米载体系统,用于精确的癌症治疗.
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