Kaushik Ajeet, Rodriguez Jose, Rothen Dan, Bhardwaj Vinay, Jayant Rahul Dev, Pattany Pradip, Fuentes Beatriz, Chand Hitendra, Kolishetti Nagesh, El-Hage Nazira, Khalili Kamel, Kenyon Norma S, Nair Madhavan
Center of Personalized Nanomedicine, Institute of Neuroimmune Pharmacology, Department of Immunology and Nano-Medicine, Herbert Wertheim College of Medicine, Florida International University, Miami, Florida 33199, United States.
Department of Biomedical Engineering, Rutgers University, Piscataway, New Jersey 08901, United States.
ACS Appl Bio Mater. 2019 Nov 18;2(11):4826-4836. doi: 10.1021/acsabm.9b00592. Epub 2019 Oct 17.
A magnetically guided brain delivery method previously demonstrated in mice has not yet been translated for clinical applications due to the mismatch of available static magnet dimensions in relation to the human brain size and shape. To develop a human-compatible methodology, we explored magnetic resonance imaging (MRI) as a tool for the delivery of magneto-electric nanoparticles (MENPs) into the brain of a baboon, as a proof-of-concept study. MRI brain image analysis showed a reduction in * value at the basal ganglia, hemisphere, and vertex, thereby confirming successful MENP delivery to the brain. The observation of well-integrated morphologically healthy tissues and no blood toxicity over the study duration confirmed the biocompatibility of MENPs and the delivery procedure. Outcomes of this research present MRI-assisted delivery of MENPs to the brain as a safe and noninvasive method in larger species such as baboons and one step closer to human translation. This MENP-based nanomedicine delivery method can be used for clinical application in order to investigate effective central nervous system (CNS) therapies.
一种先前在小鼠身上得到验证的磁导向脑内给药方法,由于现有的静态磁体尺寸与人类大脑的大小和形状不匹配,尚未转化为临床应用。为了开发一种适用于人类的方法,我们探索了将磁共振成像(MRI)作为一种将磁电纳米颗粒(MENP)递送至狒狒大脑的工具,作为一项概念验证研究。MRI脑图像分析显示基底神经节、半球和顶点处的*值降低,从而证实MENP成功递送至大脑。在研究期间观察到形态健康的组织良好整合且无血液毒性,证实了MENP和给药程序的生物相容性。这项研究的结果表明,在狒狒等较大物种中,MRI辅助将MENP递送至大脑是一种安全且无创的方法,离人类应用又近了一步。这种基于MENP的纳米药物递送方法可用于临床应用,以研究有效的中枢神经系统(CNS)治疗方法。
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