Extracellular vesicles (EVs) have been proven to play a significant immunoregulatory role in many chronic diseases, such as cancer and immune disorders. Among them, EVs derived from NK cells are an essential component of the immune cell functions. These EVs have been demonstrated to carry a variety of toxic proteins and nucleic acids derived from NK cells and play a therapeutic role in diseases like malignancies, liver fibrosis, and lung injury. However, natural NK-derived EVs (NKEVs) have certain limitations in disease treatment, such as low yield and poor targeting. Concurrently, NK cells exhibit characteristics of memory-like NK cells, which have stronger proliferative capacity, increased IFN-γ production, and enhanced cytotoxicity, making them more advantageous for disease treatment. Recent research has shifted its focus towards engineered extracellular vesicles and their potential to improve the efficiency, specificity, and safety of disease treatments. In this review, we will discuss the characteristics of NK-derived EVs and the latest advancements in disease therapy. Specifically, we will compare different cellular sources of NKEVs and explore the current status and prospects of memory-like NK cell-derived EVs and engineered NKEVs.
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http://dx.doi.org/10.3389/fimmu.2023.1328094 | DOI Listing |
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Department of Stomatology, China Academy of Chinese Medical Sciences, Xiyuan Hospital, Beijing, 100091, People's Republic of China.
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View Article and Find Full Text PDFWorld J Stem Cells
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Internal Medicine-II, Paracelsus Medical University Salzburg, Salzburg 5020, Austria.
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View Article and Find Full Text PDFMater Today Bio
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Department of Biochemistry and Molecular Pharmacology. Istituto di Ricerche Farmacologiche Mario Negri, IRCCS, Via Mario Negri, 2, Milan, Italy.
Targeting is the most challenging problem to solve for drug delivery systems. Despite the use of targeting units such as antibodies, peptides and proteins to increase their penetration in tumors the amount of therapeutics that reach the target is very small, even with the use of nanoparticles (NPs). Nature has solved the selectivity problem using a combination of proteins and lipids that are exposed on the cell membranes and are able to recognize specific tissues as demonstrated by cancer metastasis.
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