Cited by 218Osteoarthritis Treatment and MechanismsExtracellular vesicles in diseaseRNA Interference and Gene Delivery

Chondrocyte-specific genomic editing enabled by hybrid exosomes for osteoarthritis treatment

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Liang, Yujie, Xu, Xiao, Xu, Limei, Iqbal, Zoya, Ouyang, Kan, Zhang, Huawei, Wen, Chunyi, Duan, Li +1 more·2022·Theranostics

Abstract

Rationale: A cell-specific delivery vehicle is required to achieve gene editing of the disease-associated cells, so the hereditable genome editing reactions are confined within these cells without affecting healthy cells.A hybrid exosome-based nano-sized delivery vehicle derived by fusion of engineered exosomes and liposomes will be able to encapsulate and deliver CRISPR/Cas9 plasmids selectively to chondrocytes embedded in articular cartilage and attenuate the condition of cartilage damage.Methods: Chondrocyte-targeting exosomes (CAP-Exo) were constructed by genetically fusing a chondrocyte affinity peptide (CAP) at the N-terminus of the exosomal surface protein Lamp2b.Membrane fusion of the CAP-Exo with liposomes formed hybrid CAP-exosomes (hybrid CAP-Exo) which were used to encapsulate CRISPR/Cas9 plasmids.By intra-articular (IA) administration, hybrid CAP-Exo/Cas9 sgMMP-13 entered the chondrocytes of rats with cartilage damages that mimicked the condition of osteoarthritis.Results: The hybrid CAP-Exo entered the deep region of the cartilage matrix in arthritic rats on IA administration, delivered the plasmid Cas9 sgMMP-13 to chondrocytes, knocked down the matrix metalloproteinase 13 (MMP-13), efficiently ablated the expression of MMP-13 in chondrocytes, and attenuated the hydrolytic degradation of the extracellular matrix proteins in the cartilage.Conclusion: Chondrocyte-specific knockdown of MMP-13 mitigates or prevents cartilage degradation in arthritic rats, showing that hybrid CAP-Exo/Cas9 sgMMP-13 may alleviate osteoarthritis.

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Authors
Liang, Y., Xu, X., Xu, L., Iqbal, Z., Ouyang, K., Zhang, H., Wen, C., Duan, L., & Xia, J.
Affiliations
  • Chinese University of Hong Kong (HK)
  • Shenzhen University (CN)
  • Southern University of Science and Technology (CN)
  • Hong Kong Polytechnic University (HK)
Corresponding author
  • Liang, Yujie
  • Xu, Xiao
  • Xu, Limei
Venue
Theranostics
Published
2022
Volume
12
Issue
11
Pages
4866-4878
ISSN
1838-7640 (ISSN-L)
OpenAlex
W4285110131
Cited by
217
References
44
Citations by year
2026: 49 · 2025: 60 · 2024: 60 · 2023: 44 · 2022: 4
FWCI
30.58
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Theranostics (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • PolyU Institutional Research Archive (Hong Kong Polytechnic University) (submittedVersion, cc-by)
Funders
  • National Natural Science Foundation of China (2019/20, 81972116, 81972085, 81772394, 31900046)
  • China Postdoctoral Science Foundation (81772394, 81972085, 81972116, 2020M682907)
  • Chinese University of Hong Kong (RAC-2019/20)
  • Basic and Applied Basic Research Foundation of Guangdong Province (2020A1515011581, 2021A1515010985)
Topics
  • Health Sciences › Medicine › Rheumatology › Osteoarthritis Treatment and Mechanisms
  • 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
Keywords
osteoarthritis, CRISPR/Cas9, Lamp2b, articular cartilage degeneration, extracellular matrix degradation, intra-articular administration
MeSH terms
Gene Editing, Animals, Cartilage, Articular, Liposomes, Osteoarthritis, Chondrocytes, Genomics, Rats, Matrix Metalloproteinase 13, Exosomes

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