Evidence map›Paper›PMID 17914901›Full record

ArticlePLoS biology2007

MSN2 and MSN4 link calorie restriction and TOR to sirtuin-mediated lifespan extension in Saccharomyces cerevisiae.

Oliver Medvedik, Dudley W Lamming, Keyman D Kim, David A Sinclair

Open access · goldAbstract read
In one paragraph

Article in PLoS biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 182 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
182citing papers in PubMed, 1 pooled it
5.9field-weighted citation impact, top 3% 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

182 citing papers in PubMed, 1 synthesis or guideline pooled it, 313 citations in OpenAlex.

  1. Calorie restriction does not elicit a robust extension of replicative lifespan in Saccharomyces cerevisiae.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Pooled it
  2. Article
  3. Molecular Targets in Modern Cosmetic Science.Molecules (Basel, Switzerland) · 2026
    Review
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  6. Single-cell analyses identify independent aging processes that compete to determine cellular fate in budding yeast.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  7. Review
  8. Review
  9. NADCells · 2025
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  10. Review
  11. Article
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  13. Chromatin regulator Eaf3p regulates nitrogen metabolism inApplied and environmental microbiology · 2023
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  18. Gentirigeoside B fromAntioxidants (Basel, Switzerland) · 2022
    Article
  19. Review
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122 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

4 authors at 1 institution in 1 country.

Oliver MedvedikPaul F. Glenn Laboratories for the Biological Mechanisms of Aging, Department of Pathology, Harvard Medical School, Boston, Massachusetts, United States of America.
Dudley W Lamming
Keyman D Kim
David A Sinclair
Harvard University · US

Funding

Role of Sgs1 DNA helicase in telomere maintenanceR01AG019719 · NIA · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI SINCLAIR, DAVID A. · 2001 to 2022
$5.3M
SIRT as a regulator of health and lifespan of mammalsR01AG028730 · NIA · HARVARD MEDICAL SCHOOL · PI SINCLAIR, DAVID A. · 2007 to 2011
$1.7M
NAD+ control of transcriptional silencing and longevityR01GM068072 · NIGMS · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI SINCLAIR, DAVID A. · 2003 to 2007
$1.5M
Yeast screens for genetic &chemical mimetics of CRR01AG019972 · NIA · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI SINCLAIR, DAVID A. · 2002 to 2006
$841k
NIA NIH HHS R01 AG019719NIA NIH HHS R01 AG019972NIA NIH HHS R01 AG028730NIA NIH HHS R01AG19972NIGMS NIH HHS R01 GM068072NIGMS NIH HHS R01GM068072
6 · The paper itself

Abstract

Calorie restriction (CR) robustly extends the lifespan of numerous species. In the yeast Saccharomyces cerevisiae, CR has been proposed to extend lifespan by boosting the activity of sirtuin deacetylases, thereby suppressing the formation of toxic repetitive ribosomal DNA (rDNA) circles. An alternative theory is that CR works by suppressing the TOR (target of rapamycin) signaling pathway, which extends lifespan via mechanisms that are unknown but thought to be independent of sirtuins. Here we show that TOR inhibition extends lifespan by the same mechanism as CR: by increasing Sir2p activity and stabilizing the rDNA locus. Further, we show that rDNA stabilization and lifespan extension by both CR and TOR signaling is due to the relocalization of the transcription factors Msn2p and Msn4p from the cytoplasm to the nucleus, where they increase expression of the nicotinamidase gene PNC1. These findings suggest that TOR and sirtuins may be part of the same longevity pathway in higher organisms, and that they may promote genomic stability during aging.

Indexed as

Caloric RestrictionDNA-Binding ProteinsDNA, RibosomalLife ExpectancyProtein Serine-Threonine KinasesSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSignal TransductionTranscription FactorsDNA-Binding ProteinsDNA, RibosomalMSN2 protein, S cerevisiaeMSN4 protein, S cerevisiaeProtein Serine-Threonine KinasesSaccharomyces cerevisiae Proteinstarget of rapamycin protein, S cerevisiaeTranscription Factors

Identifiers

PMID17914901
PMCPMC1994990
OpenAlexW2084822857

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.