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@ARTICLE{Bertan:154291,
author = {Bertan, Fabio and Wischhof, Lena and Sosulina, Liudmila and
Mittag, Manuel and Dalügge, Dennis and Fornarelli,
Alessandra and Gardoni, Fabrizio and Marcello, Elena and Di
Luca, Monica and Fuhrmann, Martin and Remy, Stefan and Bano,
Daniele and Nicotera, Pierluigi},
title = {{L}oss of {R}yanodine {R}eceptor 2 impairs neuronal
activity-dependent remodeling of dendritic spines and
triggers compensatory neuronal hyperexcitability.},
journal = {Cell death and differentiation},
volume = {27},
number = {12},
issn = {1476-5403},
address = {London},
publisher = {Macmillan},
reportid = {DZNE-2021-00145},
pages = {3354 - 3373},
year = {2020},
note = {ISSN 1476-5403 not unique: **3 hits**.},
abstract = {Dendritic spines are postsynaptic domains that shape
structural and functional properties of neurons. Upon
neuronal activity, Ca2+ transients trigger signaling
cascades that determine the plastic remodeling of dendritic
spines, which modulate learning and memory. Here, we study
in mice the role of the intracellular Ca2+ channel Ryanodine
Receptor 2 (RyR2) in synaptic plasticity and memory
formation. We demonstrate that loss of RyR2 in pyramidal
neurons of the hippocampus impairs maintenance and
activity-evoked structural plasticity of dendritic spines
during memory acquisition. Furthermore, post-developmental
deletion of RyR2 causes loss of excitatory synapses,
dendritic sparsification, overcompensatory excitability,
network hyperactivity and disruption of spatially tuned
place cells. Altogether, our data underpin RyR2 as a link
between spine remodeling, circuitry dysfunction and memory
acquisition, which closely resemble pathological mechanisms
observed in neurodegenerative disorders.},
keywords = {Animals / Dendritic Spines: physiology / Female /
Hippocampus: metabolism / Male / Mice / Mice, Inbred C57BL /
Mice, Knockout / Neuronal Plasticity: physiology / Pyramidal
Cells: metabolism / Ryanodine Receptor Calcium Release
Channel: metabolism / Synapses: physiology},
cin = {AG Nicotera / Bano ; AG Bano / AG Remy / AG Fuhrmann},
ddc = {610},
cid = {I:(DE-2719)1013003 / I:(DE-2719)1013006 /
I:(DE-2719)1011004},
pnm = {341 - Molecular Signaling (POF3-341) / 342 - Disease
Mechanisms and Model Systems (POF3-342)},
pid = {G:(DE-HGF)POF3-341 / G:(DE-HGF)POF3-342},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:32641776},
pmc = {pmc:PMC7853040},
doi = {10.1038/s41418-020-0584-2},
url = {https://pub.dzne.de/record/154291},
}