Article ; Online: Isolation of Synaptic Vesicles from Mammalian Brain.
Methods in molecular biology (Clifton, N.J.)
2022 Volume 2417, Page(s) 131–145
Abstract: Synaptic vesicles (SVs) store neurotransmitters and undergo a fine-tuned regulatory and dynamic cycle of exo- and endocytosis, which is essential for neurotransmission at chemical synapses. The development of protocols for isolating SVs from biological ... ...
Abstract | Synaptic vesicles (SVs) store neurotransmitters and undergo a fine-tuned regulatory and dynamic cycle of exo- and endocytosis, which is essential for neurotransmission at chemical synapses. The development of protocols for isolating SVs from biological extracts was a fundamental accomplishment since it allowed for characterizing the molecular properties of SVs using biochemical methods. In this chapter, we describe a modified procedure for isolating SVs from a few g of rodent brain and that can be completed within ~12 h. The protocol involves the preparation of isolated nerve terminals from which SVs are released by osmotic shock and then enriched via various centrifugation steps, followed by size exclusion chromatography as final purification step. The final vesicle fraction is 22-fold enriched in SVs over the starting material, and the final yield of SVs obtained using this protocol is approximately 20 μg of protein per gram of mouse brain. The degree of contamination by other organelles and particles monitored by morphology and immunolabeling compares well with that of the classical protocols. |
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MeSH term(s) | Animals ; Brain/metabolism ; Mammals ; Mice ; Neurotransmitter Agents/metabolism ; Synapses/metabolism ; Synaptic Transmission ; Synaptic Vesicles/metabolism |
Chemical Substances | Neurotransmitter Agents |
Language | English |
Publishing date | 2022-01-31 |
Publishing country | United States |
Document type | Journal Article |
ISSN | 1940-6029 |
ISSN (online) | 1940-6029 |
DOI | 10.1007/978-1-0716-1916-2_11 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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