Extracellular vesicles (EV), in particular exosomes, have been the object of intense research, due to their potential to mediate intercellular communication, modulating the phenotype of target cells. The natural properties and functions of EV are being exploited as biomarkers for disease diagnosis and prognosis, and as nano-bio-carriers for the development of new therapeutic strategies. EV have been particularly examined in the field of cancer, but are also increasingly investigated in other areas, like immune-related diseases and regenerative medicine. In this review, the therapeutic use of EV as drug delivery systems is described, balancing the advantages and drawbacks of different routes for their in vivo administration. Systemic and local delivery of EV are discussed, tackling the persisting difficulties in the assessment of their pharmacokinetics, pharmacodynamics and biodistribution in vivo. Finally, we discuss the future perspectives for incorporating EV into delivery systems and their use for an improved and controlled release of EV in vivo.
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http://dx.doi.org/10.1016/j.jconrel.2018.09.019 | DOI Listing |
BMC Infect Dis
January 2025
Department of Tuberculosis Diseases, The Sixth People's Hospital of Dongguan, Dongguan, GuangDong, China.
Background: Exosome is a small extracellular vesicle with a diameter of 30 to 150 nm that is secreted by cells. Mtb and other bacteria can also secrete extracellular vesicles, which carry characteristics and information about the pathogen. Here, we compare the concentration of exosomes and the Mtb antigen in exosomes of tuberculosis patients aiming to evaluate whether exosomes can be used as diagnostic markers of tuberculosis at different stages.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Biotechnology, Jožef Stefan Institute, Ljubljana, Slovenia.
Extracellular vesicles (EVs) are nanosized lipid bilayer particles released by various cellular organisms that carry an array of bioactive molecules. EVs have diagnostic potential, as they play a role in intercellular interspecies communication, and could be applied in drug delivery. In contrast to mammalian cell-derived EVs, the study of EVs from bacteria, particularly Gram-positive bacteria, received less research attention.
View Article and Find Full Text PDFExp Cell Res
January 2025
Department of Medical Engineering, Al-Nisour University College, Baghdad, Iraq.
The tumor microenvironment (TME) has drawn much interest recently in the search for innovative cancer therapeutics, especially in light of the growing body of evidence supporting the efficacy of immune checkpoint inhibitors (ICIs). The TME comprises various cell types within the extracellular matrix (ECM), such as immune cells, endothelial cells, and cancer-associated fibroblasts (CAFs). Throughout the malignancy, these cells interact with cancerous cells and with one another.
View Article and Find Full Text PDFPediatr Res
January 2025
Department of Paediatrics, Monash University, Melbourne, VIC, Australia.
Cell therapies as treatments for neonatal conditions have attracted significant research and parent interest over the last two decades. Mesenchymal stromal cells, umbilical cord blood cells and neural stem cells translate from lab, to preclinical and into clinical trials, with contributions being made from all over the world. Effective and timely translation involves frequent reflection and consultation from research-adjacent fields (i.
View Article and Find Full Text PDFSci Rep
January 2025
Neurovascular Unit Research Group, Korea Brain Research Institute (KBRI), Daegu, South Korea.
Brain-derived neurotrophic factor (BDNF) plays an essential role in regulating diverse neuronal functions in an activity-dependent manner. Although BDNF is synthesized primarily in neurons, astrocytes can also supply BDNF through various routes, including the recycling of neuron-derived BDNF. Despite accumulating evidence for astrocytic BDNF uptake and resecretion of neuronal BDNF, the detailed mechanisms underlying astrocytic BDNF recycling remain unclear.
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