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@ARTICLE{Aly:259239,
author = {Aly, Amr and Laszlo, Zsofia I. and Rajkumar, Sandeep and
Demir, Tugba and Hindley, Nicole and Lamont, Douglas J. and
Lehmann, Johannes and Seidel, Mira and Sommer, Daniel and
Franz-Wachtel, Mirita and Barletta, Francesca and Heumos,
Simon and Czemmel, Stefan and Kabashi, Edor and Ludolph,
Albert and Böckers, Tobias and Henstridge, Christopher M.
and Catanese, Alberto},
title = {{I}ntegrative proteomics highlight presynaptic alterations
and c-{J}un misactivation as convergent pathomechanisms in
{ALS}},
journal = {Acta neuropathologica},
volume = {146},
issn = {0001-6322},
address = {Heidelberg},
publisher = {Springer},
reportid = {DZNE-2023-00740},
pages = {451 - 475},
year = {2023},
abstract = {Amyotrophic Lateral Sclerosis (ALS) is a fatal
neurodegenerative disease mainly affecting upper and lower
motoneurons. Several functionally heterogeneous genes have
been associated with the familial form of this disorder
(fALS), depicting an extremely complex pathogenic landscape.
This heterogeneity has limited the identification of an
effective therapy, and this bleak prognosis will only
improve with a greater understanding of convergent disease
mechanisms. Recent evidence from human post-mortem material
and diverse model systems has highlighted the synapse as a
crucial structure actively involved in disease progression,
suggesting that synaptic aberrations might represent a
shared pathological feature across the ALS spectrum. To test
this hypothesis, we performed the first comprehensive
analysis of the synaptic proteome from post-mortem spinal
cord and human iPSC-derived motoneurons carrying mutations
in the major ALS genes. This integrated approach highlighted
perturbations in the molecular machinery controlling vesicle
release as a shared pathomechanism in ALS. Mechanistically,
phosphoproteomic analysis linked the presynaptic vesicular
phenotype to an accumulation of cytotoxic protein aggregates
and to the pro-apoptotic activation of the transcription
factor c-Jun, providing detailed insights into the shared
pathobiochemistry in ALS. Notably, sub-chronic treatment of
our iPSC-derived motoneurons with the fatty acid
docosahexaenoic acid exerted a neuroprotective effect by
efficiently rescuing the alterations revealed by our
multidisciplinary approach. Together, this study provides
strong evidence for the central and convergent role played
by the synaptic microenvironment within the ALS spinal cord
and highlights a potential therapeutic target that
counteracts degeneration in a heterogeneous cohort of human
motoneuron cultures.},
keywords = {Humans / Amyotrophic Lateral Sclerosis: pathology /
Neurodegenerative Diseases: pathology / Proteomics /
Superoxide Dismutase-1: genetics / Motor Neurons: metabolism
/ ALS (Other) / Motoneuron (Other) / Proteomics (Other) /
Spinal cord (Other) / Synapse (Other) / hiPSC (Other) /
Superoxide Dismutase-1 (NLM Chemicals)},
cin = {AG Böckers / Clinical Study Center Ulm},
ddc = {610},
cid = {I:(DE-2719)1910002 / I:(DE-2719)5000077},
pnm = {352 - Disease Mechanisms (POF4-352) / 353 - Clinical and
Health Care Research (POF4-353)},
pid = {G:(DE-HGF)POF4-352 / G:(DE-HGF)POF4-353},
typ = {PUB:(DE-HGF)16},
pmc = {pmc:PMC10412488},
pubmed = {pmid:37488208},
doi = {10.1007/s00401-023-02611-y},
url = {https://pub.dzne.de/record/259239},
}