Exosomes are nanoscale vesicles with a size of 30-150 nm secreted by living cells. They are vital players in cellular communication as they can transport proteins, nucleic acids, lipids, and etc. Immune cell-derived exosomes (imEXOs) have great potential for tumor therapy because they have many of the same functions as their parent cells. Especially, imEXOs display unique constitutive characteristics that are directly involved in tumor therapy. Researchers at the National Center for Nanoscience and Technology of China begin by the biogenesis, preparation, characterization and cargo loading strategies of imEXOs. Next, they focus on therapeutic potentials of imEXOs from different kinds of immune cells against cancer from preclinical and clinical studies. Finally, the researchers discuss advantages of engineered imEXOs and potential risks of imEXOs in cancer treatment. The advantages of engineered imEXOs are highlighted, including selective killing effect, effective tumor targeting, effective lymph node targeting, immune activation and regulation, and good biosafety.
Immune cell-derived exosomes as promising tools for cancer therapy
Chen J, Zhang G, Wan Y, Xia B, Ni Q, Shan S, Hu Z, Liang XJ. (2023) Immune cell-derived exosomes as promising tools for cancer therapy. J Control Release 364:508-528. [article]