聚合物纳米载体的对比特性用于MRI引导的药物输送
Natalia Łopuszyńska1, Władysław P Węglarz1
1Department of Magnetic Resonance Imaging, Institute of Nuclear Physics Polish Academy of Sciences, 31-342 Cracow, Poland.
Nanomaterials (Basel, Switzerland)
|August 12, 2023
概括
聚合物纳米载体通过改善药物动力学和使得theranostics增强药物输送. 本综述侧重于具有MRI对比特性的聚合物纳米载体,用于图像导向治疗.
科学领域:
- 生物医学工程 生物医学工程
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
背景情况:
- 药物的药理动力学和可溶性不佳限制了治疗效果,需要高剂量.
- 纳米载体可以改善药物的半衰期,溶解度,稳定性,分布,向和释放动力学.
- 纳米技术促进了治疗学,将治疗与成像相结合,用于个性化医疗.
研究的目的:
- 审查聚合物纳米载体在MRI导向药物输送的最新进展.
- 为了突出对比性质在theranostic纳米载体设计中的重要性.
- 总结这些纳米载体对细胞毒性和治疗效果的发现.
主要方法:
- 关于聚合物纳米载体用于MRI引导药物输送的科学文献的综述.
- 基于对比剂类型的纳米载体的分类:放松型,CEST和化化合物.
- 报告的细胞毒性和治疗结果的总结.
主要成果:
- 聚合物纳米载体具有较高的负载能力,改善的药理动力学和生物相容性.
- 确定了三个主要类别的增强对比度的聚合物纳米载体.
- 对比性质的整合对于有效的theranostic纳米载体开发至关重要.
结论:
- 聚合物纳米载体是用于先进的药物输送和治疗术的多功能平台.
- 将MRI对比剂纳入纳米载体可以实现以图像为导向的治疗策略.
- 对比特征的进一步研究对于theranostic纳米载体的临床转化至关重要.
相关概念视频
01:24Modified-Release Drug Delivery Systems: Site-Targeted
Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.
01:24Site-Targeted Drug Delivery Systems: Polymeric Carriers
Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...