| 载阿霉素金纳米粒的制备和细胞毒性研究 |
| 投稿时间：2023-08-21 修订日期：2023-10-19 点此下载全文 |
| 引用本文：许子艺,孙雨菡,樊莉,卢光照,张鹰楠,张翮.载阿霉素金纳米粒的制备和细胞毒性研究[J].药学实践杂志,2024,42(2):73~77,81 |
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| 中文摘要:目的 构建载阿霉素（DOX）的甲氧基聚乙二醇（mPEG）修饰的金纳米粒AuNPs-mPEG@DOX，以降低DOX的毒副作用。方法 制备AuNPs-mPEG@DOX，通过粒径、电位和紫外可见光吸收光谱（UV-Vis）进行表征。考察连接巯基的DOX（HS-DOX）投药浓度对AuNPs-mPEG@DOX吸附率和载药量的影响。建立未吸附HS-DOX含量测定的高效液相色谱法（HPLC），对专属性、线性、精密度、稳定性和加样回收率进行考察。采用CCK-8法检测AuNPs-mPEG@DOX对MCF-10A和MCF-7细胞的毒性作用。结果 成功制备了AuNPs-mPEG@DOX，粒径为（46.12±0.49） nm，电位为（18.60±1.51） mV，最大吸收波长为530 nm。建立了可用于检测AuNPs-mPEG@DOX未吸附HS-DOX含量的HPLC方法，测定最佳投药浓度11.18 μg/ml，HS-DOX条件下的吸附率为（9.21±2.88）%，载药量为（2.01±0.62）%。细胞毒性实验表明AuNPs-mPEG@DOX可明显降低DOX对正常乳腺细胞的毒副作用；DOX在≥4.75 μmol/L时，AuNPs-mPEG@DOX与游离DOX对乳腺肿瘤细胞的细胞毒性作用一致。结论 AuNPs-mPEG@DOX可有效降低DOX的毒副作用，为后续AuNPs连接药物降低其毒副作用的研究提供参考。 |
| 中文关键词:金纳米粒 阿霉素 乳腺肿瘤 毒副作用 |
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| Preparation and cytotoxicity of doxorubicin-containing gold nanoparticles |
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| Abstract:Objective To construct methoxy polyethylene glycol (mPEG) modified gold nanoparticles (AuNPs) loaded with doxorubicin (DOX) AuNPs-mPEG@DOX in order to reduce the toxicity and side effects of DOX. Methods AuNPs-mPEG@DOX was prepared and characterized by Z-Average, Zeta potential and UV-Vis spectroscopy. The impact of thiol-linked DOX (HS-DOX) at various dosage concentrations on the drug adsorption rate and drug loading of AuNPs-mPEG@DOX was investigated. Furthermore, a HPLC method was developed to accurately determine the content of unadsorbed HS-DOX in AuNPs-mPEG@DOX. The specificity, linearity, precision, stability and average recovery of this method were thoroughly investigated. The cytotoxic effect of AuNPs-mPEG@DOX on MCF-10A and MCF-7 cells was evaluated using a CCK-8 assay. Results AuNPs-mPEG@DOX was successfully prepared with Z-Average of (46.12±0.49) nm, Zeta potential of (18.60±1.51) nm and the maximum absorption wavelength of 530 nm. An efficient HPLC method for the detection of unadsorbed HS-DOX in AuNPs-mPEG@DOX was devised. The optimal dosage concentration of HS-DOX for AuNPs-mPEG@DOX was determined to be 11.18 μg/ml, resulting in a drug adsorption rate of (9.21±2.88)% and a drug loading rate of (2.01±0.62)%. Cytotoxicity experiments demonstrated that AuNPs-mPEG@DOX significantly reduced the toxic and side effects of DOX on normal breast cells. Additionally, AuNPs-mPEG@DOX and free DOX exhibited comparable cytotoxic effects on breast tumor cells when DOX concentration was equal to or greater than 4.75 μmol/L. Conclusion AuNPs-mPEG@DOX effectively reduce the toxicity of DOX, providing a reference for future research on reducing the toxicity of AuNPs-linked drugs. |
| keywords:gold nanoparticles doxorubicin breast tumor toxicity |
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