Journal
FEBS LETTERS
Volume 595, Issue 10, Pages 1391-1410Publisher
WILEY
DOI: 10.1002/1873-3468.14074
Keywords
astrocytes; exosomes; extracellular vesicles; lipids; microglia; neural stem cells; neurons; oligodendrocytes; proteomics; RNA
Funding
- Leverhulme Trust [RPG-2018-443]
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Neurons and glial cells release EVs to the interstitial fluid of the CNS, containing proteins, nucleic acids, and lipids that modulate the behavior of recipient cells. The mechanisms of EV-mediated neuron-glial communication under physiological conditions or healthy aging are not yet clear, but proteomic studies suggest potential for targeted therapies against debilitating neurological disorders.
Neurons and glial cells of the central nervous system (CNS) release extracellular vesicles (EVs) to the interstitial fluid of the brain and spinal cord parenchyma. EVs contain proteins, nucleic acids and lipids that can be taken up by, and modulate the behaviour of, neighbouring recipient cells. The functions of EVs have been extensively studied in the context of neurodegenerative diseases. However, mechanisms involved in EV-mediated neuron-glial communication under physiological conditions or healthy ageing remain unclear. A better understanding of the myriad roles of EVs in CNS homeostasis is essential for the development of novel therapeutics to alleviate and reverse neurological disturbances of ageing. Proteomic studies are beginning to reveal cell type-specific EV cargo signatures that may one day allow us to target specific neuronal or glial cell populations in the treatment of debilitating neurological disorders. This review aims to synthesise the current literature regarding EV-mediated cell-cell communication in the brain, predominantly under physiological conditions.
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