Cited by 65Extracellular vesicles in diseaseRNA Interference and Gene DeliveryNanoparticle-Based Drug Delivery

Osteoclast-targeted delivery of anti-miRNA oligonucleotides by red blood cell extracellular vesicles

Xu, Limei, Xu, Xiao, Liang, Yujie, Wen, Caining, Ouyang, Kan, Huang, Jiadai, Xiao, Yin, Deng, Xin +2 more·2023·Journal of Controlled Release

Abstract

Osteoporosis (OP) affects millions worldwide but currently cannot be cured. Suppressing the level of miR-214 in osteoclasts by the anti-miRNA oligonucleotide (AMO) anti-miR-214 reverses bone absorption and provides a potential treatment. Here we report a peptide-guided delivery strategy using red blood cell extracellular vesicles (RBCEVs) as the vehicle to realize osteoclast-targeted delivery of anti-miR-214. A bi-functional peptide, TBP-CP05, which binds to both the CD63 on RBCEVs and receptors on osteoclasts, acts as the guide. TBP-CP05 binds with RBCEVs through CP05, displays the TRAP-binding peptide (TBP) on the surface of EVs, and endows RBCEVs with osteoclast-targeting capability both in vitro and in vivo. Intravenous injection of the osteoclast-targeting RBCEVs (OT-RBCEVs) led to the enrichment of EVs in the bone skeleton, significant inhibition of the osteoclast activity, elevated osteoblast activity, and improved bone density in osteoporotic mice. Altogether, this work demonstrates efficient guidance of drug-loaded EVs to the targeted cells in vivo using bi-functional fusion peptides, and showcases that targeted delivery of anti-miR-214 by OT-RBCEVs may be a viable method for OP treatment. SIGNIFICANCE STATEMENT. Surface functionalization of EVs endows these nanovesicles cell-specific targeting property which guides the drug cargos to specific tissues and cells with higher accuracy, longer retention, and minimal off-target effects. Methods to functionalize EVs with minimal procedures are highly desired for clinical applications. Here we present a facile method using a bifunctional fusion peptide to guide RBCEVs to osteoclasts. A simple incubation of the bifunctional peptide and RBCEVs results in osteoclast-targeting RBCEVs (OT-RBCEVs) that effectively deliver anti-miR-214 to osteoclasts in vivo in a mouse model of osteoporosis, bringing a potential therapy to osteoporotic patients. This is, to our knowledge, the first report on peptide functionalization of RBCEVs and osteoclast-targeted delivery using RBCEVs.

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Crossref · 10.1016/j.jconrel.2023.04.043

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  • Two main approaches can be used to enhance targeting ability of exosomes: direct chemical modification or indirect genetic engineering.

    “Two main approaches can be used to enhance the targeting ability of exosomes for specific applications: direct modification of exosomes by chemical means or, indirect manipulation of the donor cells through genetic engineering techniques [89, 103, 118–120]”

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Authors
Xu, L., Xu, X., Liang, Y., Wen, C., Ouyang, K., Huang, J., Xiao, Y., Deng, X., Xia, J., & Duan, L.
Affiliations
  • Shenzhen University (CN)
  • Chinese University of Hong Kong (HK)
  • City University of Hong Kong (HK)
  • Queensland University of Technology (AU)
Corresponding author
  • Xia, Jiang
  • Duan, Li
Venue
Journal of Controlled Release
Publisher
Elsevier BV
Published
2023-06
Volume
358
Pages
259-272
ISSN
0168-3659 (ISSN-L)
OpenAlex
W4367601861
Cited by
65
References
63
Citations by year
2026: 8 · 2025: 19 · 2024: 24 · 2023: 14
FWCI
5.78
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Controlled Release (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Research Grants Council, University Grants Committee (R5013-19)
  • Jining Medical University (2022-BS-03, 2022-BS-04)
  • National Natural Science Foundation of China (81772394, 81972116, 82102607)
  • China Postdoctoral Science Foundation (2020M682907, 2021M702286)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
Keywords
osteoporosis, osteoclasts, antagomir, miR-214, CD63, bone resorption, bone mineral density
MeSH terms
Extracellular Vesicles, Antagomirs, Animals, Erythrocytes, Oligonucleotides, Osteoclasts, Osteoporosis, Peptides, MicroRNAs, Mice

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