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一种将卡莫司汀和生物活性纳米粒子共包载于 PLGA 生物复合球的新策略,用于针对脑胶质瘤治疗和护理的靶向药物递送。

A novel strategy to the formulation of carmustine and bioactive nanoparticles co-loaded PLGA biocomposite spheres for targeting drug delivery to glioma treatment and nursing care.

机构信息

a Department of Neurosurgery, Jinan People's Hospital , Jinan , P. R. China.

b EICU, Jinan People's Hospital , Jinan , P. R. China.

出版信息

Artif Cells Nanomed Biotechnol. 2019 Dec;47(1):3438-3447. doi: 10.1080/21691401.2019.1652628.

Abstract

Gliomas are the most common brain tumors in humans. Different chemotherapeutics are available to treat gliomas. However, they are costly and pose numerous side effects. The development of nanocomposite based on chemotherapeutic drug and metallic nanoparticle loaded with polymer could be highly useful against glioma. In this study, carmustine loaded with gold NPs and linked with PLGA-PSPE was produced as a bio-nanocomposite and its efficacy in treating glioma and burn wound were investigated. The synthesized biocomposite was characterized by biophysical techniques. It was observed that the synthesized composite was hexagonal and crystalline nature. TGA analysis showed that the particle had good combustible property. Interestingly, the Cm-Au-PLGA-PSPE composite had exhibited remarkable anti-tumor property against U251 human glioma. The flow cytometry showed a greater increase in the apoptosis rate (62.31%) of glioma cells exposed to the bio-nanocomposite. In addition, a greater reduction in the viability of U251 cells was recorded following treatment with Cm-Au-PLGA-PSPE composite. Quick healing of the heart, liver, spleen, lung and kidney tissue wounds in mouse was noticed with Cm-Au-PLGA-PSPE composite treatment. This study concludes that the newly produced Cm-Au-PLGA-PSPE composite would be a promising alternative in treating human gliomas and associated wounds with increased biomedical applications.

摘要

神经胶质瘤是人类最常见的脑肿瘤。有不同的化疗药物可用于治疗神经胶质瘤。然而,它们成本高昂,并存在许多副作用。基于化疗药物和载有聚合物的金属纳米颗粒的纳米复合材料的开发可能对神经胶质瘤具有高度的应用价值。在这项研究中,载有金纳米颗粒的卡莫司汀与 PLGA-PSPE 相连,制成生物纳米复合材料,并研究其治疗神经胶质瘤和烧伤创面的效果。通过生物物理技术对合成的生物复合材料进行了表征。观察到合成的复合材料为六方晶和结晶性。TGA 分析表明,该颗粒具有良好的可燃性。有趣的是,Cm-Au-PLGA-PSPE 复合材料对 U251 人神经胶质瘤表现出显著的抗肿瘤特性。流式细胞术显示,暴露于生物纳米复合材料的神经胶质瘤细胞的凋亡率(62.31%)显著增加。此外,在用 Cm-Au-PLGA-PSPE 复合材料处理后,U251 细胞的活力显著降低。用 Cm-Au-PLGA-PSPE 复合材料处理后,在小鼠的心、肝、脾、肺和肾组织伤口中观察到快速愈合。本研究得出结论,新生产的 Cm-Au-PLGA-PSPE 复合材料将是治疗人类神经胶质瘤和相关创伤的一种有前途的替代方法,具有更多的生物医学应用。

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