Evidence map›Paper›PMID 25517099›Full record

ArticleNature2015

Dauer-independent insulin/IGF-1-signalling implicates collagen remodelling in longevity.

Collin Y Ewald, Jess N Landis, Jess Porter Abate, Coleen T Murphy, T Keith Blackwell

Open access · greenAbstract read
In one paragraph

Article in Nature, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 199 papers.

0numbers the graph read from it
0cells of the map it votes in
199citing papers in PubMed
8.2field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

199 citing papers in PubMed, 365 citations in OpenAlex.

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139 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 4 institutions in 1 country.

Collin Y Ewald1] Joslin Diabetes Center, One Joslin Place, Boston, Massachusetts 02215, USA [2] Harvard Stem Cell Institute, 7 Divinity Avenue, Cambridge, Massachusetts 02138, USA [3] Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, Massachusetts 02215, USA.
Jess N LandisDepartment of Molecular Biology, Lewis-Sigler Institute for Integrative Genomics, Princeton University, 148 Carl Icahn Laboratory, Washington Road, Princeton, New Jersey 08544, USA.
Jess Porter Abate1] Joslin Diabetes Center, One Joslin Place, Boston, Massachusetts 02215, USA [2] Harvard Stem Cell Institute, 7 Divinity Avenue, Cambridge, Massachusetts 02138, USA [3] Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, Massachusetts 02215, USA.
Coleen T MurphyDepartment of Molecular Biology, Lewis-Sigler Institute for Integrative Genomics, Princeton University, 148 Carl Icahn Laboratory, Washington Road, Princeton, New Jersey 08544, USA.
T Keith Blackwell1] Joslin Diabetes Center, One Joslin Place, Boston, Massachusetts 02215, USA [2] Harvard Stem Cell Institute, 7 Divinity Avenue, Cambridge, Massachusetts 02138, USA [3] Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, Massachusetts 02215, USA.
Princeton University · USHarvard Stem Cell Institute · USHarvard University · USJoslin Diabetes Center · US

Funding

SPECIAL ASSAY COREP30DK036836 · NIDDK · JOSLIN DIABETES CENTER · PI ROHIT N. KULKARNI · 1986 to 2026
$50.5M
TRAINING IN DIABETES AND METABOLISMT32DK007260 · NIDDK · JOSLIN DIABETES CENTER · PI LAURIE J GOODYEAR · 1986 to 2026
$13.6M
Enhancing and expanding the CGC Strain CollectionP40OD010440 · OD · UNIVERSITY OF MINNESOTA · PI Aric L Daul, Ann E. Rougvie · 2012 to 2026
$7.5M
SKN-1 Regulation and Oxidative Stress Resistance in C. elegansR01GM062891 · NIGMS · JOSLIN DIABETES CENTER · PI BLACKWELL, T KEITH · 2001 to 2016
$5.6M
NIDDK NIH HHS 5T32DK007260NIDDK NIH HHS P30 DK036836NIDDK NIH HHS P30DK036836NIDDK NIH HHS T32 DK007260NIGMS NIH HHS GM062891NIGMS NIH HHS R01 GM062891NIH HHS P40 OD010440
6 · The paper itself

Abstract

Interventions that delay ageing mobilize mechanisms that protect and repair cellular components, but it is unknown how these interventions might slow the functional decline of extracellular matrices, which are also damaged during ageing. Reduced insulin/IGF-1 signalling (rIIS) extends lifespan across the evolutionary spectrum, and in juvenile Caenorhabditis elegans also allows the transcription factor DAF-16/FOXO to induce development into dauer, a diapause that withstands harsh conditions. It has been suggested that rIIS delays C. elegans ageing through activation of dauer-related processes during adulthood, but some rIIS conditions confer robust lifespan extension unaccompanied by any dauer-like traits. Here we show that rIIS can promote C. elegans longevity through a program that is genetically distinct from the dauer pathway, and requires the Nrf (NF-E2-related factor) orthologue SKN-1 acting in parallel to DAF-16. SKN-1 is inhibited by IIS and has been broadly implicated in longevity, but is rendered dispensable for rIIS lifespan extension by even mild activity of dauer-related processes. When IIS is decreased under conditions that do not induce dauer traits, SKN-1 most prominently increases expression of collagens and other extracellular matrix genes. Diverse genetic, nutritional, and pharmacological pro-longevity interventions delay an age-related decline in collagen expression. These collagens mediate adulthood extracellular matrix remodelling, and are needed for ageing to be delayed by interventions that do not involve dauer traits. By genetically delineating a dauer-independent rIIS ageing pathway, our results show that IIS controls a broad set of protective mechanisms during C. elegans adulthood, and may facilitate elucidation of processes of general importance for longevity. The importance of collagen production in diverse anti-ageing interventions implies that extracellular matrix remodelling is a generally essential signature of longevity assurance, and that agents promoting extracellular matrix youthfulness may have systemic benefit.

Indexed as

Signal TransductionAgingAnimalsCaenorhabditis elegansCaenorhabditis elegans ProteinsCollagenDNA-Binding ProteinsExtracellular MatrixForkhead Transcription FactorsInsulinInsulin-Like Growth Factor ILarvaLongevityTranscription FactorsCaenorhabditis elegans ProteinsCollagendaf-16 protein, C elegansDNA-Binding ProteinsForkhead Transcription FactorsInsulinInsulin-Like Growth Factor Iskn-1 protein, C elegansTranscription Factors

Identifiers

PMID25517099
PMCPMC4352135
OpenAlexW2144875446

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.