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@ARTICLE{Lechler:139632,
author = {Lechler, Marie C and David, Della C},
title = {{M}ore stressed out with age? {C}heck your {RNA} granule
aggregation.},
journal = {Prion},
volume = {11},
number = {5},
issn = {1933-6896},
address = {London [u.a.]},
publisher = {Taylor $\&$ Francis},
reportid = {DZNE-2020-05954},
pages = {313-322},
year = {2017},
abstract = {Low complexity (LC) prion-like domains are over-represented
among RNA-binding proteins (RBPs) and contribute to the
dynamic nature of RNA granules. Importantly, several
neurodegenerative diseases are characterized by cytoplasmic
'solid' aggregates formed by mainly nuclear RBPs harboring
LC prion-like domains. Although RBP aggregation in disease
has been extensively characterized, it remains unknown how
the process of aging disturbs RBP dynamics. Our recent study
revealed that RNA granule components including 2 key stress
granule RBPs with LC prion-like domains, PAB-1 and TIAR-2,
aggregate in aged Caenorhabditis elegans in the absence of
disease. Here we present new evidence showing that sustained
stress granule formation triggers RBP aggregation. In
addition, we demonstrate that mild chronic stress during
aging promotes mislocalization of nuclear RBPs. We discuss
the consequences of aberrant interactions between
age-related RBP aggregation and disease-associated RBP
aggregation. In particular, we show that FUST-1 and PAB-1
co-localize in aberrant cytoplasmic accumulations.
Significantly, long-lived animals with reduced insulin/IGF-1
signaling abrogate stress granule RBP aggregation through
activation of the transcription factors HSF-1 and DAF-16. We
evaluate the different mechanisms that could maintain
dynamic stress granules. Together these findings highlight
how changes with age could contribute to pathogenesis in
neurodegenerative diseases and disruption of RNA
homeostasis.},
keywords = {Aging: metabolism / Animals / Caenorhabditis elegans:
genetics / Caenorhabditis elegans Proteins: metabolism /
Cytoplasmic Granules: metabolism / Forkhead Transcription
Factors: metabolism / Humans / Longevity / Neurodegenerative
Diseases: metabolism / Poly(A)-Binding Protein I: metabolism
/ Prions: metabolism / Protein Aggregation, Pathological:
metabolism / Proteome: chemistry / RNA: metabolism /
RNA-Binding Proteins: metabolism / Stress, Physiological /
Transcription Factors: metabolism / Caenorhabditis elegans
Proteins (NLM Chemicals) / Forkhead Transcription Factors
(NLM Chemicals) / Poly(A)-Binding Protein I (NLM Chemicals)
/ Prions (NLM Chemicals) / Proteome (NLM Chemicals) /
RNA-Binding Proteins (NLM Chemicals) / Transcription Factors
(NLM Chemicals) / daf-16 protein, C elegans (NLM Chemicals)
/ heat shock factor-1, C elegans (NLM Chemicals) / RNA (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},
pmc = {pmc:PMC7030885},
pubmed = {pmid:28956717},
doi = {10.1080/19336896.2017.1356559},
url = {https://pub.dzne.de/record/139632},
}