Journal ArticleDOI
68Ga-Labeled Gold Glyconanoparticles for Exploring Blood–Brain Barrier Permeability: Preparation, Biodistribution Studies, and Improved Brain Uptake via Neuropeptide Conjugation
TLDR
The synthesis of novel water-soluble and biocompatible glucose-coated gold nanoparticles (GNPs) carrying BBB-permeable neuropeptides and a chelator of the positron emitter (68)Ga as a PET reporter for in vivo tracking biodistribution is developed.Abstract:
New tools and techniques to improve brain visualization and assess drug permeability across the blood–brain barrier (BBB) are critically needed. Positron emission tomography (PET) is a highly sensitive, noninvasive technique that allows the evaluation of the BBB permeability under normal and disease-state conditions. In this work, we have developed the synthesis of novel water-soluble and biocompatible glucose-coated gold nanoparticles (GNPs) carrying BBB-permeable neuropeptides and a chelator of the positron emitter 68Ga as a PET reporter for in vivo tracking biodistribution. The small GNPs (2 nm) are stabilized and solubilized by a glucose conjugate. A NOTA ligand is the chelating agent for the 68Ga, and two related opioid peptides are used as targeting ligands for improving BBB crossing. The radioactive labeling of the GNPs is completed in 30 min at 70 °C followed by purification via centrifugal filtration. As a proof of principle, a biodistribution study in rats is performed for the different 68Ga-GNP...read more
Citations
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Glycomimetics versus multivalent glycoconjugates for the design of high affinity lectin ligands.
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Revisiting 30 years of biofunctionalization and surface chemistry of inorganic nanoparticles for nanomedicine
João Conde,Jorge Dias,Valeria Grazú,María Moros,Pedro V. Baptista,Jesús M. de la Fuente,Jesús M. de la Fuente +6 more
TL;DR: The aim of this review is not only to provide in-depth insights into the different biofunctionalization and characterization methods, but also to give an overview of possibilities and limitations of the available nanoparticles.
Journal ArticleDOI
Blood‐Brain Barrier Permeable Gold Nanoparticles: An Efficient Delivery Platform for Enhanced Malignant Glioma Therapy and Imaging
Yu Cheng,Qing Dai,Ramin A. Morshed,Xiaobing Fan,Michelle L. Wegscheid,Derek A. Wainwright,Yu Han,Lingjiao Zhang,Brenda Auffinger,Alex Tobias,Esther Rincón,Bart Thaci,Atique U. Ahmed,Peter C. Warnke,Chuan He,Maciej S. Lesniak +15 more
TL;DR: Treatment of mice bearing intracranial glioma xenografts with pH-sensitive Dox-conjugated TAT-Au NPs via a single intravenous administration leads to significant survival benefit when compared to the free Dox.
Journal ArticleDOI
Carbohydrate nanocarriers in biomedical applications: functionalization and construction.
TL;DR: The recent applications of sugar (mono/oligosaccharides and/or polysaccharides) for the development of nanomedicines are summarized in this review, including the application of carbohydrates for the surface-functionalization of various nanocarriers and for the construction of the nanocare itself.
Journal ArticleDOI
Nano carriers for drug transport across the blood–brain barrier
Xinming Li,John Tsibouklis,Tingting Weng,Buning Zhang,Guoqiang Yin,Feng Guangzhu,Yingde Cui,Irina N. Savina,Lyuba Mikhalovska,Susan Sandeman,Carol A. Howel,Sergey V. Mikhalovsky +11 more
TL;DR: This review provids a concise discussion of nano carriers for drug transport across the intact BBB, various forms of nanomaterials including inorganic/solid lipid/polymeric nanoparticles, nanoemulsions, quantum dots, nanogels, liposomes, micelles, dendrimers, polymersomes and exosomes are critically evaluated, and the future directions of this area are fully discussed.
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