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Updated: May 16, 2025

In Vivo Immunogenicity Screening of Tumor-Derived Extracellular Vesicles by Flow Cytometry of Splenic T Cells
Published on: September 23, 2021
NK cellular derived nanovesicles in tumor immunity
Dingru Li1, Yixin Shi2, Sifei Yu3
1Institute of Translational Medicine, The First People's Hospital of Foshan, Guangdong, China; School of Biology and Biological Engineering, South China University of Technology, Guangzhou, Guangdong, China.
Abstract:
Natural Killer (NK) cells are a vital element of the innate immune system, and NK cell-based therapies have demonstrated efficacy against various malignancies. However, targeting solid tumors has been challenging due to the low infiltration of NK cells into tumors and the effective evasion strategies employed by tumors. Recent studies have shown that NK cell derived nanovesicles (NK-NV) can not only replicate the functions of NK cells but also offer more advantages in clinical applications. They are capable of transporting various cellular components such as proteins, nucleic acids, and lipids across distances, thereby facilitating intercellular communication among various cells within the tumor microenvironment (TME). With the progress in nanomedical technology, these vesicles can be engineered to carry a range of functional elements and therapeutic agents to enhance their antitumoral capabilities. In this review, we summarize the current available literature on NK-NVs, discuss their potential biological functions and the role of non-coding RNAs (ncRNAs), and explore their application in the treatment of solid tumors.
Insights
Natural Killer nanovesicles (NK-NVs) show promise for treating solid tumors by overcoming NK cell limitations. These engineered vesicles deliver therapeutic payloads, enhancing anti-tumor immunity within the tumor microenvironment.
Area of Science:
- Immunology
- Nanomedicine
- Oncology
Background:
- Natural Killer (NK) cells are crucial for innate immunity and cancer therapy.
- Solid tumors present challenges for NK cell therapy due to poor infiltration and tumor evasion.
- NK cell-derived nanovesicles (NK-NVs) emerge as a promising alternative, mimicking NK cell functions.
Purpose of the Study:
- To review the literature on NK-NVs.
- To discuss their biological functions, including the role of non-coding RNAs (ncRNAs).
- To explore NK-NV applications in treating solid tumors.
Main Methods:
- Literature review of NK-NVs.
- Analysis of NK-NV biological functions and ncRNA involvement.
- Exploration of therapeutic applications in solid tumors.
Main Results:
- NK-NVs can replicate NK cell functions and offer advantages for clinical use.
- These nanovesicles facilitate intercellular communication within the tumor microenvironment.
- Engineered NK-NVs can carry therapeutic agents to enhance anti-tumor capabilities.
Conclusions:
- NK-NVs represent a novel therapeutic strategy for solid tumors.
- Their ability to deliver cargo and modulate the tumor microenvironment is key.
- Further research into NK-NVs, particularly ncRNA roles, can advance cancer treatment.
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