Shradhanjali Akankshya, Wolfe Jayne T, Tefft Brandon J
Joint Department of Biomedical Engineering, Medical College of Wisconsin & Marquette University, Milwaukee, Wisconsin, USA.
Tissue Eng Part B Rev. 2025 Jun;31(3):234-247. doi: 10.1089/ten.TEB.2024.0103. Epub 2024 Aug 19.
There is a critical need for novel approaches to translate cell therapy and regenerative medicine to clinical practice. Magnetic cell targeting with site specificity has started to open avenues in these fields as a potential therapeutic platform. Magnetic targeting is gaining popularity in the field of biomedicine due to its ability to concentrate and retain at a target site while minimizing deleterious effects at off-target sites. It is regarded as a relatively straightforward and safe approach for a wide range of therapeutic applications. This review discusses the latest advancements and approaches in magnetic cell targeting using endocytosed and surface-bound magnetic nanoparticles as well as tracking using magnetic resonance imaging (MRI). The most common form of magnetic nanoparticles is superparamagnetic iron oxide nanoparticles (SPION). The biodegradable and biocompatible properties of these magnetically responsive particles and capacity for rapid endocytosis into cells make them a breakthrough in targeted therapy. This review further discusses specific applications of magnetic targeting approaches in cardiovascular tissue engineering including myocardial regeneration, therapeutic angiogenesis, and endothelialization of implantable cardiovascular devices.
将细胞疗法和再生医学转化为临床实践急需新的方法。具有位点特异性的磁性细胞靶向作为一种潜在的治疗平台,已开始在这些领域开辟道路。磁性靶向因其能够在靶位点聚集并保留,同时将非靶位点的有害影响降至最低,在生物医学领域越来越受欢迎。它被认为是一种适用于广泛治疗应用的相对直接且安全的方法。本综述讨论了使用内吞和表面结合磁性纳米颗粒进行磁性细胞靶向的最新进展和方法,以及使用磁共振成像(MRI)进行跟踪。磁性纳米颗粒最常见的形式是超顺磁性氧化铁纳米颗粒(SPION)。这些磁响应颗粒的可生物降解和生物相容性特性以及快速内吞进入细胞的能力使其成为靶向治疗的一项突破。本综述进一步讨论了磁性靶向方法在心血管组织工程中的具体应用,包括心肌再生、治疗性血管生成以及可植入心血管装置的内皮化。
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