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@ARTICLE{Kilzheimer:165137,
author = {Kilzheimer, Alexander and Hentrich, Thomas and Rotermund,
Carola and Kahle, Philipp J and Schulze-Hentrich, Julia M},
title = {{F}ailure of diet-induced transcriptional adaptations in
alpha-synuclein transgenic mice.},
journal = {Human molecular genetics},
volume = {32},
number = {3},
issn = {0964-6906},
address = {Oxford},
publisher = {Oxford Univ. Press},
reportid = {DZNE-2022-01442},
pages = {450 - 461},
year = {2023},
note = {CC BY: https://creativecommons.org/licenses/by/4.0/},
abstract = {Nutritional influences have been discussed as potential
modulators of Parkinson's disease (PD) pathology through
various epidemiological and physiological studies. In animal
models, a high-fat diet (HFD) with greater intake of
lipid-derived calories leads to accelerated disease onset
and progression. The underlying molecular mechanisms of
HFD-induced aggravated pathology, however, remain largely
unclear. In this study, we aimed to further illuminate the
effects of a fat-enriched diet in PD by examining the
brainstem and hippocampal transcriptome of alpha-synuclein
transgenic mice exposed to a life-long HFD. Investigating
individual transcript isoforms, differential gene expression
and co-expression clusters, we observed that transcriptional
differences between wild-type (WT) and transgenic animals
intensified in both regions under HFD. Both brainstem and
hippocampus displayed strikingly similar transcriptomic
perturbation patterns. Interestingly, expression differences
resulted mainly from responses in WT animals to HFD, while
these genes remained largely unchanged or were even slightly
oppositely regulated by diet in transgenic animals. Genes
and co-expressed gene groups exhibiting this dysregulation
were linked to metabolic and mitochondrial pathways. Our
findings propose the failure of metabolic adaptions as the
potential explanation for accelerated disease unfolding
under exposure to HFD. From the identified clusters of
co-expressed genes, several candidates lend themselves to
further functional investigations.},
keywords = {Mice / Animals / Mice, Transgenic / alpha-Synuclein:
genetics / alpha-Synuclein: metabolism / Parkinson Disease:
genetics / Parkinson Disease: metabolism / Diet, High-Fat:
adverse effects / Gene Expression Profiling / Mice, Inbred
C57BL / alpha-Synuclein (NLM Chemicals)},
cin = {AG Kahle 2},
ddc = {570},
cid = {I:(DE-2719)1210000-4},
pnm = {352 - Disease Mechanisms (POF4-352)},
pid = {G:(DE-HGF)POF4-352},
typ = {PUB:(DE-HGF)16},
pmc = {pmc:PMC9851747},
pubmed = {pmid:36001352},
doi = {10.1093/hmg/ddac205},
url = {https://pub.dzne.de/record/165137},
}