透明质酸疏水自组装纳米粒制备及其负载淫羊藿苷抗神经炎症研究
杨月蕙 , 杨晨 , 杨思敏 , 彭效明 , 管洁 , 居瑞军
现代化工 ›› 2025, Vol. 45 ›› Issue (10) : 118 -123.
透明质酸疏水自组装纳米粒制备及其负载淫羊藿苷抗神经炎症研究
Preparation of self-assembled hydrophobic hyaluronic acid-based nanoparticles and study on their loading icariin for curing neuroinflammatory
利用透明质酸与全反式维甲酸的酯化反应合成透明质酸维甲酸酯(HARA)。HARA接枝率经高效液相色谱(HPLC)检测计算,由响应面实验优化接枝度,得到的HARA接枝度为0.905 μg/mg。淫羊藿苷(ICA)冰片(BO)芳香纳米粒(HARA/ICA-BO)采用薄膜分散法制备,通过粒度分析仪和透射电镜检测,粒径为296.52±4.56 nm,PDI为0.255±0.021;表面带负电荷,电位为(-15.07±0.04)mV。HPLC检测ICA的包封率和载药量分别为79.61%±0.95%和4.09%±0.04%。利用小胶质细胞考察纳米粒对细胞存活率的影响,结果表明在10 μmol/L浓度下无细胞毒性。脂多糖(LPS)干预构建小胶质细胞炎症模型,在同浓度HARA/ICA-BO处理后显著抑制了炎症因子IL-6、COX-2、TNF-α和iNOS-2的mRNA表达。因此HARA/ICA-BO对体外神经炎症有显著治疗效果,具有潜在应用价值。
Hyaluronic acid retinoate (HARA) is synthesized through the esterification reaction between hyaluronic acid and all-trans retinoic acid.The grafting rate of HARA is calculated by HPLC detection.The grafting rate of HARA obtained reaches 0.905 μg/mg after its grafting rate is optimized via response surface experiment.Epimedoside (ICA) borneol (BO) aromatic nanoparticles (HARA/ICA-BO) are prepared via the thin-film dispersion method,and detected by particle size analyzer and transmission electron microscope.The particle size is 296.52±4.56 nm,and the PDI is 0.255±0.021.The surface of HARA/ICA-BO nanoparticles carries with negative charges,and the potential is -15.07±0.04 mV.The encapsulation efficiency and loading capacity of ICA detected by HPLC are 79.61%±0.95% and 4.09%±0.04%,respectively.Microglial cells are taken to examine the impact of HARA/ICA-BO nanoparticles on cell viability,and the results show that there is no cytotoxicity at a HARA/ICA-BO concentration of 10 μmol/L.Lipopolysaccharide (LPS) is employed to intervene to construct a microglial inflammation model.After the microglial inflammation is treated by HARA/ICA-BO at the same concentration,the mRNA expressions of inflammatory factors such as IL-6,COX-2,TNF-α and iNOS-2 are significantly inhibited.Therefore,HARA/ICA-BO has a significant curing effect on in-vitro neuroinflammation and shows potential application value.
hyaluronic acid / neuroinflammation / nano-carrier / icariin
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国家自然科学基金项目(81703453)
北京市教委科技计划一般项目(KM202210017011)
大学生创新创业训练计划项目(2024J00285)
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