Cited by 190Extracellular vesicles in diseaseSpinal Cord Injury ResearchNanoparticle-Based Drug Delivery

Therapeutic Efficacy-Potentiated and Diseased Organ-Targeting Nanovesicles Derived from Mesenchymal Stem Cells for Spinal Cord Injury Treatment

Kim, Han Young, Kumar, Hemant, Jo, Min-Jae, Kim, Jonghoon, Yoon, Jeong-Kee, Lee, Ju-Ro, Kang, Mikyung, Choo, Yeon Woong +5 more·2018·Nano Letters

Abstract

Human mesenchymal stem cell (hMSC)-derived exosomes have been spotlighted as a promising therapeutic agent for cell-free regenerative medicine. However, poor organ-targeting ability and insufficient therapeutic efficacy of systemically injected hMSC-exosomes were identified as critical limitations for their further applications. Therefore, in this study we fabricated iron oxide nanoparticle (IONP)-incorporated exosome-mimetic nanovesicles (NV-IONP) from IONP-treated hMSCs and evaluated their therapeutic efficacy in a clinically relevant model for spinal cord injury. Compared to exosome-mimetic nanovesicles (NV) prepared from untreated hMSCs, NV-IONP not only contained IONPs which act as a magnet-guided navigation tool but also carried greater amounts of therapeutic growth factors that can be delivered to the target cells. The increased amounts of therapeutic growth factors inside NV-IONP were attributed to IONPs that are slowly ionized to iron ions which activate the JNK and c-Jun signaling cascades in hMSCs. In vivo systemic injection of NV-IONP with magnetic guidance significantly increased the amount of NV-IONP accumulating in the injured spinal cord. Accumulated NV-IONP enhanced blood vessel formation, attenuated inflammation and apoptosis in the injured spinal cord, and consequently improved spinal cord function. Taken together, these findings highlight the development of therapeutic efficacy-potentiated extracellular nanovesicles and demonstrate their feasibility for repairing injured spinal cord.

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Crossref · 10.1021/acs.nanolett.8b01816

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  • In a clinically relevant SCI model, systemic delivery of IONP-incorporated exosome-mimetic nanovesicles (NV-IONP) directed by magnetic targeting significantly increased accumulation at the lesion site.

    “In a clinically relevant model of SCI, the systemic delivery of NV-IONP, directed by magnetic targeting, significantly increased their accumulation at the lesion site.”

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Authors
Kim, H. Y., Kumar, H., Jo, M.-J., Kim, J., Yoon, J.-K., Lee, J.-R., Kang, M., Choo, Y. W., Song, S. Y., Kwon, S. P., Hyeon, T., Han, I.-B., & Kim, B.-S.
Affiliations
  • Seoul National University (KR)
  • CHA University Bundang Medical Center (KR)
  • Department of Neurosurgery, CHA University, CHA Bundang Medical Center, Seongnam-si, 13488, Republic of Korea
Corresponding author
Kim, Byung-Soo
Venue
Nano Letters
Published
2018-07-11
Volume
18
Issue
8
Pages
4965-4975
ISSN
  • 1530-6984 (ISSN-L)
  • 1530-6992
OpenAlex
W2825453881
Cited by
190
References
44
Citations by year
2026: 9 · 2025: 16 · 2024: 32 · 2023: 27 · 2022: 34 · 2021: 37 · 2020: 23 · 2019: 9 · 2018: 3
FWCI
6.40
Type
journal article
Language
en
Open access
closed
Locations
  • Nano Letters (publishedVersion)
  • PubMed (publishedVersion)
  • Seoul National University Open Repository (Seoul National University) (submittedVersion)
Funders
  • Korea Health Industry Development Institute (HI18C0183)
  • National Research Foundation of Korea (2017R1A2B3005842, 2017R1C1B1011397)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Spinal Cord Injury Research
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
Keywords
mesenchymal stem cell-derived exosomes, iron oxide nanoparticles, magnetic targeting, spinal cord injury, JNK/c-Jun signaling, iron release, growth factor delivery, angiogenesis, neuroinflammation, apoptosis
MeSH terms
Animals, Drug Carriers, Humans, Spinal Cord Injuries, Signal Transduction, PC12 Cells, Apoptosis, Neovascularization, Physiologic, Intercellular Signaling Peptides and Proteins, Biomimetic Materials, Mice, Rats, Exosomes, Magnetite Nanoparticles, Mesenchymal Stem Cells, Drug Liberation

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