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@ARTICLE{Lechler:139113,
author = {Lechler, Marie C and Crawford, Emily D and Groh, Nicole and
Widmaier, Katja and Jung, Raimund and Kirstein, Janine and
Trinidad, Jonathan C and Burlingame, Alma L and David,
Della},
title = {{R}educed {I}nsulin/{IGF}-1 {S}ignaling {R}estores the
{D}ynamic {P}roperties of {K}ey {S}tress {G}ranule
{P}roteins during {A}ging.},
journal = {Cell reports},
volume = {18},
number = {2},
issn = {2211-1247},
address = {[New York, NY]},
publisher = {Elsevier},
reportid = {DZNE-2020-05435},
pages = {454-467},
year = {2017},
abstract = {Low-complexity 'prion-like' domains in key RNA-binding
proteins (RBPs) mediate the reversible assembly of RNA
granules. Individual RBPs harboring these domains have been
linked to specific neurodegenerative diseases. Although
their aggregation in neurodegeneration has been extensively
characterized, it remains unknown how the process of aging
disturbs RBP dynamics. We show that a wide variety of RNA
granule components, including stress granule proteins,
become highly insoluble with age in C. elegans and that
reduced insulin/insulin-like growth factor 1 (IGF-1) daf-2
receptor signaling efficiently prevents their aggregation.
Importantly, stress-granule-related RBP aggregates are
associated with reduced fitness. We show that heat shock
transcription factor 1 (HSF-1) is a main regulator of
stress-granule-related RBP aggregation in both young and
aged animals. During aging, increasing DAF-16 activity
restores dynamic stress-granule-related RBPs, partly by
decreasing the buildup of other misfolded proteins that seed
RBP aggregation. Longevity-associated mechanisms found to
maintain dynamic RBPs during aging could be relevant for
neurodegenerative diseases.},
keywords = {Aging: metabolism / Animals / Caenorhabditis elegans:
metabolism / Caenorhabditis elegans Proteins: metabolism /
Cytoplasmic Granules: metabolism / Heat-Shock Proteins:
metabolism / Insulin: metabolism / Insulin-Like Growth
Factor I: metabolism / Longevity / Mutation: genetics /
Protein Aggregates / RNA: metabolism / RNA-Binding Proteins:
metabolism / Receptor, Insulin: metabolism / Signal
Transduction / Solubility / Caenorhabditis elegans Proteins
(NLM Chemicals) / Heat-Shock Proteins (NLM Chemicals) /
Insulin (NLM Chemicals) / Protein Aggregates (NLM Chemicals)
/ RNA-Binding Proteins (NLM Chemicals) / RNA (NLM Chemicals)
/ Insulin-Like Growth Factor I (NLM Chemicals) / DAF-2
protein, C elegans (NLM Chemicals) / Receptor, Insulin (NLM
Chemicals)},
cin = {AG David},
ddc = {610},
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:28076789},
pmc = {pmc:PMC5263236},
doi = {10.1016/j.celrep.2016.12.033},
url = {https://pub.dzne.de/record/139113},
}