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Exosomes are extracellular vesicles having a unique biogenesis pathway via multivesicular bodies. Exosome formation starts with the invagination of the multi-vesicular bodies (MVBs) or late endosomes to generate intraluminal vesicles (ILVs). [57] There are various proposed mechanisms for formation of MVBs, vesicle budding, and sorting.
Extracellular vesicles (EVs) are lipid bilayer-delimited particles that are naturally released from almost all types of cells but, unlike a cell, cannot replicate. EVs range in diameter from near the size of the smallest physically possible unilamellar liposome (around 20-30 nanometers) to as large as 10 microns or more, although the vast majority of EVs are smaller than 200 nm.
However, due to exosomes being small in size (30-150 nm), present in various biological fluids (such as blood, urine, saliva), sensitivity to environmental factors (such temperature, pH), complexity of drug loading efficiency, there are challenges associated with isolation, purification, delivery and drug payload.
The Journal of Extracellular Vesicles, JEV, is a peer-reviewed open-access scientific journal of the International Society for Extracellular Vesicles (ISEV). As one of two official journals of ISEV, the other being the Journal of Extracellular Biology, JEV covers research on lipid bilayer-delimited particles known as extracellular vesicles (EVs).
Intracellular delivery is the process of introducing external materials into living cells. Materials that are delivered into cells include nucleic acids (DNA and RNA), proteins, peptides, impermeable small molecules, synthetic nanomaterials, organelles, and micron-scale tracers, devices and objects.
The International Society for Extracellular Vesicles (ISEV) is an international scientific organization that focuses on advancing global extracellular vesicle (EV) research. [1] These membrane-bound particles are released from all known cells and include exosomes , ectosomes , exophers, oncosomes, and more.
Immunoliposome therapy is a targeted drug delivery method that involves the use of liposomes (artificial lipid bilayer vesicles) coupled with monoclonal antibodies to deliver therapeutic agents to specific sites or tissues in the body. [1]
Bioprinting drug delivery is a method for producing drug delivery vehicles. It uses 3D printing of biomaterials.Such vehicles are biocompatible, tissue-specific hydrogels or implantable devices. 3D bioprinting prints cells and biological molecules to form tissues, organs, or biological materials in a scaffold-free manner that mimics living human tissue.
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