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Updated: Mar 31, 2026

Enhancing Chimeric Antigen Receptor-Extracellular Vesicles (CAR-EV) Technology: The Future of Cancer Therapy
Published on: September 19, 2025
A novel platform for cancer therapy using extracellular vesicles.
Naoomi Tominaga1, Yusuke Yoshioka2, Takahiro Ochiya2
1Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan; Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; Research Fellow of the Japan Society for the Promotion of Science (JSPS), Tokyo, Japan.
Extracellular vesicles (EVs), natural cell communicators, show promise as drug delivery systems (DDS) due to organ targeting and low side effects. Further research is needed to clarify their organ tropism mechanisms and optimize EV collection and preservation for DDS applications.
Area of Science:
- Biotechnology
- Nanomedicine
- Cell Biology
Background:
- Extracellular vesicles (EVs) are nanoscale vesicles mediating intercellular communication.
- EVs carry functional biomolecules like proteins, mRNAs, and microRNAs.
- EVs are being explored as natural drug delivery systems (DDS) due to inherent organ tropism and low toxicity.
Purpose of the Study:
- To provide an overview of methods for utilizing EVs as drug delivery systems (DDS).
- To highlight the potential of EVs in targeted organ delivery.
- To address the need for understanding EV organ tropism mechanisms and optimizing EV collection/preservation.
Main Methods:
- Review of current literature on Extracellular Vesicles (EVs) for drug delivery.
- Analysis of studies demonstrating EV-mediated organ targeting.
- Discussion of methods for EV isolation, preservation, and application in DDS.
Main Results:
- EVs possess natural organ tropism, enabling targeted drug delivery.
- Existing reports show successful drug delivery to specific organs using EVs.
- The precise mechanisms underlying EV organ tropism remain largely undetermined.
Conclusions:
- EVs represent a promising, low-side-effect platform for drug delivery systems (DDS).
- Further investigation into EV organ tropism mechanisms is crucial for optimizing DDS.
- Efficient methods for EV collection and preservation are essential for clinical translation.
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