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Ca2+ is an essential trigger for most forms of synaptic plasticity. Ca2+ signaling occurs not only by Ca2+ entry via plasma membrane channels but also via Ca2+ signals generated by intracellular organelles. These organelles, by dynamically regulating the spatial and temporal extent of Ca2+ elevations within neurons, play a pivotal role in determining the downstream consequences of neural signaling on synaptic function. Here, we review the role of three major intracellular stores: the endoplasmic reticulum, mitochondria, and acidic Ca2+ stores, such as lysosomes, in neuronal Ca2+ signaling and plasticity. We provide a comprehensive account of how Ca2+ release from these stores regulates short- and long-term plasticity at the pre- and postsynaptic terminals of central synapses.

Original publication

DOI

10.1177/1073858418785334

Type

Journal article

Journal

Neuroscientist

Publication Date

01/07/2018

Keywords

Ca2+ signaling, Ca2+ stores, LTD, LTP, acidic stores, endoplasmic reticulum, hippocampus, lysosomes, mitochondria, synaptic plasticity