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© 2020 Walter de Gruyter GmbH, Berlin/Boston 2020. The synaptic vesicle (SV) cycle, a trafficking pathway by which SV fuses with the plasma membrane to release neurotransmitters at the neuronal synapse, resides at the heart of neurotransmission. SV fusion consumes vesicle membrane and proteins, whose availability is limited, and these components must be recycled quickly to prevent synaptic fatigue. Biochemical, genetic and physiological approaches over the past five decades have led to a discovery of a large directory of proteins and lipids central to the SV cycle and several models on how these constituents account for the synapse function. The complexity of the SV cycle is starting to be comprehended, which opens new perspectives for our understanding of neuronal physiology and provides mechanistic explanations for several neurological and neurodegenerative diseases. Here, selected classic and recent insights into the mechanisms of two key SV trafficking steps (exocytosis and endocytosis) are reviewed, as well as their links to selected brain pathologies.

Original publication

DOI

10.1515/nf-2020-0032

Type

Journal article

Journal

Neuroforum

Publication Date

01/11/2020

Volume

26

Pages

219 - 226