41
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: not found

      Brain‐Targeted Exosomes‐Based Drug Delivery System to Overcome the Treatment Bottleneck of Brainstem Glioma

      Read this article at

      ScienceOpenPublisher
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Brain health is the humans’ primary goal in achieving health and longevity. Brainstem glioma (BSG) has a high disability and mortality rate, posing a serious threat to children's brain health. Delivery of drugs to the brainstem is limited by poor tumor targeting and low blood‐brain barrier (BBB) permeability. Thus, it is a great challenge to construct intracranial drug delivery systems with strong biocompatibility, low immunogenicity, and high BBB permeability for the delivery of drugs targeting BSG. Exosomes, as the next generation of novel delivery systems, have been widely used to across the BBB due to their advantages of good biocompatibility, stability, and permeability of the BBB and have made corresponding breakthroughs in targeted drug delivery for CNS diseases. This review summarizes natural, polypeptide functionalized, and physical methods‐assisted brain‐targeted exosomes‐based drug delivery systems, the drug treatment bottleneck of BSG, and highlights the potential of using a brain‐targeted exosomes‐based drug delivery system to overcome the drug treatment bottleneck of BSG. It provides new insights into using exosomes‐based drug delivery for BSG treatment.

          Related collections

          Most cited references173

          • Record: found
          • Abstract: found
          • Article: not found

          The biology, function, and biomedical applications of exosomes

          The study of extracellular vesicles (EVs) has the potential to identify unknown cellular and molecular mechanisms in intercellular communication and in organ homeostasis and disease. Exosomes, with an average diameter of ~100 nanometers, are a subset of EVs. The biogenesis of exosomes involves their origin in endosomes, and subsequent interactions with other intracellular vesicles and organelles generate the final content of the exosomes. Their diverse constituents include nucleic acids, proteins, lipids, amino acids, and metabolites, which can reflect their cell of origin. In various diseases, exosomes offer a window into altered cellular or tissue states, and their detection in biological fluids potentially offers a multicomponent diagnostic readout. The efficient exchange of cellular components through exosomes can inform their applied use in designing exosome-based therapeutics.
            • Record: found
            • Abstract: found
            • Article: not found

            Engineering precision nanoparticles for drug delivery

            In recent years, the development of nanoparticles has expanded into a broad range of clinical applications. Nanoparticles have been developed to overcome the limitations of free therapeutics and navigate biological barriers — systemic, microenvironmental and cellular — that are heterogeneous across patient populations and diseases. Overcoming this patient heterogeneity has also been accomplished through precision therapeutics, in which personalized interventions have enhanced therapeutic efficacy. However, nanoparticle development continues to focus on optimizing delivery platforms with a one-size-fits-all solution. As lipid-based, polymeric and inorganic nanoparticles are engineered in increasingly specified ways, they can begin to be optimized for drug delivery in a more personalized manner, entering the era of precision medicine. In this Review, we discuss advanced nanoparticle designs utilized in both non-personalized and precision applications that could be applied to improve precision therapies. We focus on advances in nanoparticle design that overcome heterogeneous barriers to delivery, arguing that intelligent nanoparticle design can improve efficacy in general delivery applications while enabling tailored designs for precision applications, thereby ultimately improving patient outcome overall.
              • Record: found
              • Abstract: found
              • Article: not found

              Delivery of siRNA to the mouse brain by systemic injection of targeted exosomes.

              To realize the therapeutic potential of RNA drugs, efficient, tissue-specific and nonimmunogenic delivery technologies must be developed. Here we show that exosomes-endogenous nano-vesicles that transport RNAs and proteins-can deliver short interfering (si)RNA to the brain in mice. To reduce immunogenicity, we used self-derived dendritic cells for exosome production. Targeting was achieved by engineering the dendritic cells to express Lamp2b, an exosomal membrane protein, fused to the neuron-specific RVG peptide. Purified exosomes were loaded with exogenous siRNA by electroporation. Intravenously injected RVG-targeted exosomes delivered GAPDH siRNA specifically to neurons, microglia, oligodendrocytes in the brain, resulting in a specific gene knockdown. Pre-exposure to RVG exosomes did not attenuate knockdown, and non-specific uptake in other tissues was not observed. The therapeutic potential of exosome-mediated siRNA delivery was demonstrated by the strong mRNA (60%) and protein (62%) knockdown of BACE1, a therapeutic target in Alzheimer's disease, in wild-type mice.

                Author and article information

                Contributors
                Journal
                Advanced Functional Materials
                Adv Funct Materials
                Wiley
                1616-301X
                1616-3028
                August 2023
                May 2023
                August 2023
                : 33
                : 33
                Affiliations
                [1 ] Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education Beijing Advanced Innovation Center for Biomedical Engineering School of Engineering Medicine Beihang University Beijing 100083 P. R. China
                [2 ] CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of China Beijing 100190 P. R. China
                [3 ] Department of Neurosurgery Beijing Tiantan Hospital Capital Medical University Beijing 100050 P. R. China
                [4 ] China National Clinical Research Center for Neurological Diseases (NCRC‐ND) Beijing 100070 P. R. China
                Article
                10.1002/adfm.202302378
                973ca76c-6282-4627-bde3-3911b1670120
                © 2023

                http://onlinelibrary.wiley.com/termsAndConditions#vor

                History

                Comments

                Comment on this article

                Related Documents Log