% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Yildiz:264182,
author = {Yildiz, Berra and Schiedt, Lisa and Mulaw, Medhanie and
Bockmann, Jürgen and Jesse, Sarah and Lutz, Anne-Kathrin
and Boeckers, Tobias M},
title = {{S}hank3 related muscular hypotonia is accompanied by
increased intracellular calcium concentrations and ion
channel dysregulation in striated muscle tissue.},
journal = {Frontiers in cell and developmental biology},
volume = {11},
issn = {2296-634X},
address = {Lausanne},
publisher = {Frontiers Media},
reportid = {DZNE-2023-00962},
pages = {1243299},
year = {2023},
abstract = {Phelan-McDermid syndrome (PMS) is a syndromic form of
Autism Spectrum Disorders (ASD) classified as a rare genetic
neurodevelopmental disorder featuring global developmental
delay, absent or delayed speech, ASD-like behaviour and
neonatal skeletal muscle hypotonia. PMS is caused by a
heterozygous deletion of the distal end of chromosome
22q13.3 or SHANK3 mutations. We analyzed striated muscles of
newborn Shank3Δ11(-/-) animals and found a significant
enlargement of the sarcoplasmic reticulum as previously seen
in adult Shank3Δ11(-/-) mice, indicative of a
Shank3-dependent and not compensatory mechanism for this
structural alteration. We analyzed transcriptional
differences by RNA-sequencing of muscle tissue of neonatal
Shank3Δ11(-/-) mice and compared those to Shank3(+/+)
controls. We found significant differences in gene
expression of ion channels crucial for muscle contraction
and for molecules involved in calcium ion regulation. In
addition, calcium storage- [i.e., Calsequestrin (CSQ)],
calcium secretion- and calcium-related signaling-proteins
were found to be affected. By immunostainings and Western
blot analyses we could confirm these findings both in
Shank3Δ11(-/-) mice and PMS patient muscle tissue.
Moreover, alterations could be induced in vitro by the
selective downregulation of Shank3 in C2C12 myotubes. Our
results emphasize that SHANK3 levels directly or indirectly
regulate calcium homeostasis in a cell autonomous manner
that might contribute to muscular hypotonia especially seen
in the newborn.},
keywords = {ASD (Other) / RNA-sequencing (Other) / Shank3 (Other) /
immunohistochemistry (Other) / muscular hypotonia (Other) /
neurodevelopmental disorders (Other) / western blot (Other)},
cin = {AG Böckers},
ddc = {570},
cid = {I:(DE-2719)1910002},
pnm = {352 - Disease Mechanisms (POF4-352)},
pid = {G:(DE-HGF)POF4-352},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:37745298},
pmc = {pmc:PMC10511643},
doi = {10.3389/fcell.2023.1243299},
url = {https://pub.dzne.de/record/264182},
}