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@ARTICLE{AndresAlonso:259698,
author = {Andres-Alonso, Maria and Borgmeyer, Maximilian and
Mirzapourdelavar, Hadi and Lormann, Jakob and Klein, Kim and
Schweizer, Michaela and Hoffmeister-Ullerich, Sabine and
Oelschlegel, Anja Maria and Dityatev, Alexander and Kreutz,
Michael R},
title = {{G}olgi satellites are essential for polysialylation of
{NCAM} and expression of {LTP} at distal synapses.},
journal = {Cell reports},
volume = {42},
number = {7},
issn = {2211-1247},
address = {[New York, NY]},
publisher = {Elsevier},
reportid = {DZNE-2023-00770},
pages = {112692},
year = {2023},
abstract = {The complex cytoarchitecture of neurons poses significant
challenges for the maturation of synaptic membrane proteins.
It is currently unclear whether locally secreted synaptic
proteins bypass the Golgi or whether they traffic through
Golgi satellites (GSs). Here, we create a transgenic GS
reporter mouse line and show that GSs are widely distributed
along dendrites and are capable of mature glycosylation, in
particular sialylation. We find that polysialylation of
locally secreted NCAM takes place at GSs. Accordingly, in
mice lacking a component of trans-Golgi network-to-plasma
membrane trafficking, we find fewer GSs and significantly
reduced PSA-NCAM levels in distal dendrites of CA1 neurons
that receive input from the temporoammonic pathway.
Induction of long-term potentiation at those, but not more
proximal, synapses is severely impaired. We conclude that
GSs serve the need for local mature glycosylation of
synaptic membrane proteins in distal dendrites and thereby
contribute to rapid changes in synaptic strength.},
keywords = {Mice / Animals / Long-Term Potentiation: physiology /
Synapses: metabolism / Neurons: metabolism / Dendrites:
metabolism / Neural Cell Adhesion Molecules: metabolism /
CP: Cell biology (Other) / CP: Neuroscience (Other) / Golgi
satellites (Other) / NCAM (Other) / polysialylation (Other)
/ secretory trafficking (Other) / synaptic plasticity
(Other) / Neural Cell Adhesion Molecules (NLM Chemicals)},
cin = {AG Düzel / AG Dityatev},
ddc = {610},
cid = {I:(DE-2719)5000006 / I:(DE-2719)1310007},
pnm = {353 - Clinical and Health Care Research (POF4-353) / 351 -
Brain Function (POF4-351)},
pid = {G:(DE-HGF)POF4-353 / G:(DE-HGF)POF4-351},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:37355986},
doi = {10.1016/j.celrep.2023.112692},
url = {https://pub.dzne.de/record/259698},
}