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@ARTICLE{Groh:139668,
author = {Groh, Nicole and Gallotta, Ivan and Lechler, Marie C and
Huang, Chaolie and Jung, Raimund and David, Della C},
title = {{M}ethods to {S}tudy {C}hanges in {I}nherent {P}rotein
{A}ggregation with {A}ge in {C}aenorhabditis elegans.},
journal = {JoVE journal},
volume = {Biology},
number = {129},
issn = {1940-087X},
address = {New Delhi},
publisher = {JoVE124831},
reportid = {DZNE-2020-05990},
pages = {56464},
year = {2017},
abstract = {In the last decades, the prevalence of neurodegenerative
disorders, such as Alzheimer's disease (AD) and Parkinson's
disease (PD), has grown. These age-associated disorders are
characterized by the appearance of protein aggregates with
fibrillary structure in the brains of these patients.
Exactly why normally soluble proteins undergo an aggregation
process remains poorly understood. The discovery that
protein aggregation is not limited to disease processes and
instead part of the normal aging process enables the study
of the molecular and cellular mechanisms that regulate
protein aggregation, without using ectopically expressed
human disease-associated proteins. Here we describe
methodologies to examine inherent protein aggregation in
Caenorhabditis elegans through complementary approaches.
First, we examine how to grow large numbers of
age-synchronized C. elegans to obtain aged animals and we
present the biochemical procedures to isolate
highly-insoluble-large aggregates. In combination with a
targeted genetic knockdown, it is possible to dissect the
role of a gene of interest in promoting or preventing
age-dependent protein aggregation by using either a
comprehensive analysis with quantitative mass spectrometry
or a candidate-based analysis with antibodies. These
findings are then confirmed by in vivo analysis with
transgenic animals expressing fluorescent-tagged
aggregation-prone proteins. These methods should help
clarify why certain proteins are prone to aggregate with age
and ultimately how to keep these proteins fully functional.},
keywords = {Age Factors / Animals / Animals, Genetically Modified /
Caenorhabditis elegans: chemistry / Caenorhabditis elegans:
genetics / Caenorhabditis elegans: metabolism /
Caenorhabditis elegans Proteins: chemistry / Caenorhabditis
elegans Proteins: genetics / Caenorhabditis elegans
Proteins: metabolism / Models, Animal / Protein Aggregates /
Recombinant Proteins: chemistry / Recombinant Proteins:
genetics / Recombinant Proteins: metabolism / Caenorhabditis
elegans Proteins (NLM Chemicals) / Protein Aggregates (NLM
Chemicals) / Recombinant Proteins (NLM Chemicals)},
cin = {AG David},
ddc = {570},
cid = {I:(DE-2719)1210004},
pnm = {342 - Disease Mechanisms and Model Systems (POF3-342)},
pid = {G:(DE-HGF)POF3-342},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:29286457},
pmc = {pmc:PMC5755480},
doi = {10.3791/56464},
url = {https://pub.dzne.de/record/139668},
}