Therapeutic use of curcumin‐encapsulated and curcumin‐primed exosomes
2019
: Curcumin, the bioactive pigment of turmeric which has polyphenolic-hydrophobic components, has been used for the treatment of a variety of diseases. However, due to its insignificant intestinal-liver metabolism, low stability, quick systemic elimination and its hydrophobic property with low solubility, curcumin has limited bioavailability. Exosomes are nanovesicles (30-100 nm) released from diverse cell types into extracellular and, ultimately, into bio-fluids in a tightly regulated manner. Exosomes are capable of transferring lipids, proteins, RNAs and DNAs, both with and without direct cell-to-cell contact. Curcumin-encapsulated exosomes are highly bioavailable, soluble and safe, and can reach high concentrations in the blood; they, therefore, have therapeutic potential without toxic effects and immune stimulation. Thus, curcumin-encapsulated exosomes could be superior to other synthetic nanoparticles as a carrier of curcumin. The aim of the current review is to offer an overview of the in vitro, in vivo and clinical studies pertaining to the role of curcumin-primed and curcumin-encapsulated exosomes in the treatment of cancer, oxidative stress, brain disorders, cholesterol, and endothelial dysfunction.
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