基于基托桑的双重负载纳米颗粒:一种用于治疗多微生物骨髓炎的新方法
M Zegre1, J Barros2, A B David3
1Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; H&TRC - Centro de Investigação em Saúde e Tecnologia, ESTeSL - Escola Superior de Tecnologia da Saúde de Lisboa, IPL - Instituto Politécnico de Lisboa, Av. D. João II, Lote 4.69.01, 1990-096 Lisboa, Portugal.
International journal of pharmaceutics
|March 17, 2025
概括
这项研究开发了用于骨髓炎治疗的双重载荷奇托桑纳米粒子. 这些纳米颗粒有效地减少了多微生物生物膜,显示出治疗复杂骨感染的前景.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 传染性疾病 传染性疾病
背景情况:
- 由多微生物感染引起的骨质炎是一个重大的治疗挑战.
- 目前的治疗方法往往难以有效地同时针对细菌和真菌病原体.
- 需要新的药物输送系统来提高复杂骨感染的治疗疗效.
研究的目的:
- 开发和描述与米诺环素 (抗菌) 和伏利可纳 (抗真菌) 共同装载的单分散基托桑纳米颗粒.
- 评估双重负载纳米颗粒对多微生物骨髓炎病原体的体外抗生物膜活性.
- 评估纳米粒子系统与人类骨质母细胞细胞的细胞相容性.
主要方法:
- 制备单分散的奇托桑纳米颗粒与米诺环素和伏利可纳一起加载.
- 对两种药物的封装效率的确定.
- 热稳定性分析,以评估纳米粒子内的药物相互作用.
- 在体外抗生物膜测试中使用金黄色葡萄球菌和白菌.
- 使用人类骨质细胞细胞系进行细胞毒性测定.
主要成果:
- 成功制备了双载素纳米粒子.
- 米诺环素表现出更高的封装效率,而不是沃里康纳.
- 热稳定性分析表明影响伏利康纳释放的潜在相互作用.
- 在体外显著减少多微生物生物膜 (高达90%).
- 证明了与人类骨质母细胞细胞的细胞相容性.
结论:
- 开发的基托纳米粒子系统有效地同时提供抗菌和抗真菌剂.
- 双重载荷的纳米颗粒显示出强大的体外抗生物膜活性对关键骨髓炎病原体.
- 该系统作为多微生物骨髓炎的创新治疗策略具有前途.
关键词:
生物膜感染 生物膜感染基托桑是一种酸盐.药物输送系统是药物输送系统.敏诺环素的使用方法米诺环素化.混合骨髓炎,多糖纳米颗粒.波洛克萨米尔 (Poloxamer) 是一种波洛克萨米尔.沃里康纳 (Voriconazole) 是一种可以更多相关视频
相关概念视频
Combined Effects of Drugs: Synergism
6.4K
Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Such synergistic combinations...
6.4K
Microbial Corrosion
111
Microbiologically Influenced Corrosion (MIC) is a significant form of material degradation caused by the metabolic activities of microorganisms. This phenomenon poses substantial challenges across various industries, including oil and gas, maritime, and water treatment sectors.MIC occurs when microorganisms, such as bacteria, archaea, and fungi, colonize metal surfaces, forming biofilms that alter the local electrochemical environment. These biofilms can lead to the production of corrosive...
111
Clinical Significance of Antibiotic Resistance
106
Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within...
106


