Cited by 82Extracellular vesicles in diseaseNanoplatforms for cancer theranosticsRadiation Therapy and Dosimetry

Functional Immune Cell‐Derived Exosomes Engineered for the Trilogy of Radiotherapy Sensitization

Open access
Ma, Xiaotu, Yao, Meinan, Gao, Yu, Yue, Yale, Li, Yao, Zhang, Tianjiao, Nie, Guangjun, Zhao, Xiao +1 more·2022·Advanced Science

Abstract

The limited efficacy of radiotherapy leads to radio‐resistance and high rates of tumor recurrence and metastasis, which is caused by tumor hypoxia, rapid DNA damage repair, and especially the suppressive immune microenvironment of tumor. Lots of immune cell‐derived exosomes can regulate antitumor immunity, but their application in enhancing radiotherapy is rarely studied. Herein, as a model of concept, M1 macrophage‐derived exosomes (M1Exos) is engineered as effective radiotherapy sensitizers, realizing the trilogy of radiotherapy sensitization: 1) M1Exos is engineered to express catalases on the inside of membrane, which can effectively relieve tumor hypoxia, and enhance DNA damage. 2) The DNA damage repair inhibitor is loaded in M1Exos to effectively inhibit DNA damage repair. 3) M1Exos can polarize M2 macrophages into M1 phenotypes, and the anti‐PD‐L1 nanobody engineered on the outside of M1Exos can relieve the immunosuppression of T cells, both ultimately leading to the remodeling of the tumor suppressive microenvironment. The trilogy of radiotherapy sensitization achieves excellent antitumor efficacy, exhibiting the good utility of engineering immune cell‐derived exosomes as radiotherapy sensitizers, inspiring the future efforts to explore different kinds of immune cell‐derived exosomes for enhanced radiotherapy.

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  • After DNA damage caused by standard treatment, tumor hypoxia can drive DNA repair to allow tumor cells to continue to grow, giving rise to resistance to antitumor therapy.

    “After DNA damage caused by standard treatment, tumor hypoxia can drive DNA repair to allow tumor cells to continue to grow, giving rise to resistance to antitumor therapy.”

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  1. [34]a) R. F. Zhang, L. Chen, Q. Liang, J. Q. Xi, H. Q. Zhao, Y. L. Jin, X. F. Gao, X. Y. Yan, L. Z. Gao, K. L. Fan, Nano Today 2021, 41, 101317; b) J. Q. Xi, R. F. Zhang, L. M. Wang, W. Xu, Q. Liang, J. Y. Li, J. Jiang, Y. L. Yang, X. Y. Yan, K. L. Fan, L. Z. Gao, Adv. Funct. Mater. 2021, 31, 2007130.
  2. [37]Y. X. Lu, Y. Liu, C. Z. Yang, J. Visualized Exp. 2017, 128, e56450.

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Authors
Ma, X., Yao, M., Gao, Y., Yue, Y., Li, Y., Zhang, T., Nie, G., Zhao, X., & Liang, X.
Affiliations
  • Chinese Academy of Sciences (CN)
  • Beijing Center for Disease Prevention and Control (CN)
  • Peking University Third Hospital (CN)
Corresponding author
  • Zhao, Xiao
  • Liang, Xiaolong
Venue
Advanced Science
Publisher
Wiley
Published
2022-06-17
Volume
9
Issue
23
Pages
e2106031-e2106031
ISSN
2198-3844 (ISSN-L)
OpenAlex
W4283078286
Cited by
82
References
59
Citations by year
2026: 7 · 2025: 26 · 2024: 28 · 2023: 17 · 2022: 4
FWCI
6.12
Type
journal article
Language
en
Open access
Locations
  • Advanced Science (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Natural Science Foundation of China (81771846)
  • Peking University Third Hospital (BYSYZD2019018, jyzc2018‐02, BYSY2015023)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Physical Sciences › Engineering › Biomedical Engineering › Nanoplatforms for cancer theranostics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Radiation Therapy and Dosimetry
Keywords
exosomes, radiosensitization, tumor hypoxia, catalase, DNA repair inhibition, M2 macrophage polarization, tumor immune microenvironment, radioresistance (biology), tumor recurrence, metastasis
MeSH terms
Tumor Hypoxia, Humans, Macrophages, Neoplasms, Exosomes, Tumor Microenvironment

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