Cited by 62CAR-T cell therapy researchExtracellular vesicles in diseaseRNA Interference and Gene Delivery

Engineered exosome-mediated messenger RNA and single-chain variable fragment delivery for human chimeric antigen receptor T-cell engineering

Si, Ke, Dai, Zhu, Li, Zhanping, Ye, Zheng, Ding, Bo, Feng, Songwei, Sun, Bo, Shen, Yang +1 more·2023·Cytotherapy

Abstract

Background aims Most current chimeric antigen receptor (CAR) T cells are generated by viral transduction, which induces persistent expression of CARs and may cause serious undesirable effects. Messenger RNA (mRNA)-based approaches in manufacturing CAR T cells are being developed to overcome these challenges. However, the most common method of delivering mRNA to T cells is electroporation, which can be toxic to cells.Methods The authors designed and engineered an exosome delivery platform using the bacteriophage MS2 system in combination with the highly expressed protein lysosome-associated membrane protein 2 isoform B on exosomes.Results The authors' delivery platform achieved specific loading and delivery of mRNA into target cells and achieved expression of specific proteins, and anti-CD3/CD28 single-chain variable fragments (scFvs) expressed outside the exosomal membrane effectively activated primary T cells in a similar way to commercial magnetic beads.Conclusions The delivery of CAR mRNA and anti-CD3/CD28 scFvs via designed exosomes can be used for ex vivo production of CAR T cells with cancer cell killing capacity. The authors' results indicate the potential applications of the engineered exosome delivery platform for direct conversion of primary T cells to CAR T cells while providing a novel strategy for producing CAR T cells in vivo.

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Crossref · 10.1016/j.jcyt.2023.01.005

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52 of 52 references verified0 citation errors · 0 not checkable

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  • These findings demonstrate the prospective application of engineered exosome delivery platforms in converting primary T cells into CAR T cells directly, furnishing a new approach for in vivo CAR T cell production.

    “These findings demonstrate the prospective application of engineered exosome delivery platforms in converting primary T cells into CAR T cells directly, furnishing a new approach for in vivo CAR T cell production [106].”
  • Engineered exosomes deliver CAR mRNA and anti-CD3/CD28 scFv for the ex vivo production of CAR T cells with tumor-killing ability.

    “Engineered exosomes deliver chimeric antigen receptor (CAR) mRNA and anti-CD3/CD28 single-chain variable fragments (scFv) for the ex vivo production of CAR T cells with tumor-killing ability.”
  • Phage MS2 system and LAMP-2B modified exosomes demonstrated ability to specifically load and deliver anti-CD3/CD28 scFv and CAR mRNA.

    “This system demonstrated the ability to specifically load and deliver anti-CD3/CD28 scFv and CAR mRNA.”
  • This engineered exosome delivery system has great potential for converting primary T cells into CAR T cells and provides a new approach for in vivo induction of CAR T cells.

    “The results suggested that this engineered exosome delivery system has great potential for converting primary T cells into CAR T cells and provides a new approach for the in vivo induction of CAR T cells [106].”

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Authors
Si, K., Dai, Z., Li, Z., Ye, Z., Ding, B., Feng, S., Sun, B., Shen, Y., & Xiao, Z.
Affiliations
  • State Key Laboratory of Digital Medical Engineering (CN)
  • Zhongda Hospital Southeast University (CN)
Corresponding author
  • Shen, Yang
  • Xiao, Zhongdang
Venue
Cytotherapy
Publisher
Elsevier BV
Published
2023-06
Volume
25
Issue
6
Pages
615-624
ISSN
1465-3249 (ISSN-L)
OpenAlex
W4321601872
Cited by
60
References
53
Citations by year
2026: 20 · 2025: 22 · 2024: 10 · 2023: 8
FWCI
7.32
Type
journal article
Language
en
Open access
closed
Locations
  • Cytotherapy (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Fundamental Research Funds for the Central Universities (2242018K3DN05)
  • Jiangsu Commission of Health (ZDA2020012)
  • National Natural Science Foundation of China (81671807, 82072078)
  • Southeast University
  • Jiangsu Provincial Key Research and Development Program (BE2020777, SBE2020741118)
Topics
  • Health Sciences › Medicine › Oncology › CAR-T cell therapy research
  • 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
engineered exosomes, chimeric antigen receptor T cells, bacteriophage MS2, Lamp2b, scFv, T cell activation, tumor cell killing
MeSH terms
Receptors, Chimeric Antigen, Humans, Receptors, Antigen, T-Cell, T-Lymphocytes, Immunotherapy, Adoptive, CD28 Antigens, Cell Line, Tumor, Exosomes, Single-Chain Antibodies, Cell Engineering

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