Evidence map›Paper›PMID 21909281›Full record

ArticlePLoS genetics2011

The evolutionarily conserved longevity determinants HCF-1 and SIR-2.1/SIRT1 collaborate to regulate DAF-16/FOXO.

Gizem Rizki, Terri Naoko Iwata, Ji Li, Christian G Riedel, Colette Lafontaine Picard, Max Jan, Coleen T Murphy, Siu Sylvia Lee

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
4.4field-weighted citation impact, top 4% 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

65 citing papers in PubMed, 120 citations in OpenAlex.

  1. RBFOX1 association with age at onset of Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
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  7. Chromatin: the old and young of it.Frontiers in molecular biosciences · 2023
    Review
  8. DrosophilaCells · 2021
    Article
  9. Elevated Trehalose Levels inMetabolites · 2021
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  15. Review
  16. Article
  17. Review
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  19. Review
  20. Article

5 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

8 authors at 3 institutions in 1 country.

Gizem RizkiDepartment of Molecular Biology and Genetics, Cornell University, Ithaca, New York, United States of America.
Terri Naoko Iwata
Ji Li
Christian G Riedel
Colette Lafontaine Picard
Max Jan
Coleen T Murphy
Siu Sylvia Lee
Cornell University · USPrinceton University · USHarvard University · US

Funding

Systematic Analysis of C elegans Longevity DeterminantsR01AG024425 · NIA · CORNELL UNIVERSITY ITHACA · PI Siu Sylvia Lee · 2004 to 2026
$8.5M
Molecular Mechanisms Regulating Age-Related Cognitive Decline in C. elegansR01AG034446 · NIA · PRINCETON UNIVERSITY · PI MURPHY, COLEEN TARA · 2009 to 2019
$3.1M
Reproductive Sciences and Genomics Training ProgramT32HD052471 · NICHD · CORNELL UNIVERSITY · PI ROBERSON, MARK S · 2007 to 2016
$2.0M
Investigate the Transcriptional Co-factors of DAF-16/FOXO in C. elegansR56AG024425 · NIA · CORNELL UNIVERSITY · PI LEE, SIU SYLVIA · 2009 to 2009
$383k
NIA NIH HHS AG024425NIA NIH HHS R01 AG024425NIA NIH HHS R01 AG034446NIA NIH HHS R56 AG024425NICHD NIH HHS T32 HD052471NICHD NIH HHS T32HD052471
6 · The paper itself

Abstract

The conserved DAF-16/FOXO transcription factors and SIR-2.1/SIRT1 deacetylases are critical for diverse biological processes, particularly longevity and stress response; and complex regulation of DAF-16/FOXO by SIR-2.1/SIRT1 is central to appropriate biological outcomes. Caenorhabditis elegans Host Cell Factor 1 (HCF-1) is a longevity determinant previously shown to act as a co-repressor of DAF-16. We report here that HCF-1 represents an integral player in the regulatory loop linking SIR-2.1/SIRT1 and DAF-16/FOXO in both worms and mammals. Genetic analyses showed that hcf-1 acts downstream of sir-2.1 to influence lifespan and oxidative stress response in C. elegans. Gene expression profiling revealed a striking 80% overlap between the DAF-16 target genes responsive to hcf-1 mutation and sir-2.1 overexpression. Subsequent GO-term analyses of HCF-1 and SIR-2.1-coregulated DAF-16 targets suggested that HCF-1 and SIR-2.1 together regulate specific aspects of DAF-16-mediated transcription particularly important for aging and stress responses. Analogous to its role in regulating DAF-16/SIR-2.1 target genes in C. elegans, the mammalian HCF-1 also repressed the expression of several FOXO/SIRT1 target genes. Protein-protein association studies demonstrated that SIR-2.1/SIRT1 and HCF-1 form protein complexes in worms and mammalian cells, highlighting the conservation of their regulatory relationship. Our findings uncover a conserved interaction between the key longevity determinants SIR-2.1/SIRT1 and HCF-1, and they provide new insights into the complex regulation of FOXO proteins.

Indexed as

AnimalsCaenorhabditis elegansCaenorhabditis elegans ProteinsEvolution, MolecularForkhead Box Protein O3Forkhead Transcription FactorsHEK293 CellsHost Cell Factor C1HumansLongevityRNA, Small InterferingSignal TransductionSirtuin 1SirtuinsStress, PhysiologicalTranscription FactorsCaenorhabditis elegans Proteinsdaf-16 protein, C elegansForkhead Box Protein O3Forkhead Transcription FactorsFOXO3 protein, humanhcf-1 protein, C elegansHCFC1 protein, humanHost Cell Factor C1RNA, Small InterferingSIR-2.1 protein, C elegansSIRT1 protein, humanSirtuin 1SirtuinsTranscription Factors

Identifiers

PMID21909281
PMCPMC3164695
OpenAlexW2163271690

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.