Evidence map›Paper›PMID 26655722›Full record

ArticleThe Journal of biological chemistry2016

SIRT1 Limits Adipocyte Hyperplasia through c-Myc Inhibition.

Houari Abdesselem, Aisha Madani, Ahmad Hani, Muna Al-Noubi, Neha Goswami, Hisham Ben Hamidane, Anja M Billing, Jennifer Pasquier, Michael S Bonkowski, Najeeb Halabi and 7 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

26 citing papers in PubMed, 64 citations in OpenAlex.

  1. Article
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  5. Review
  6. Article
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  9. Article
  10. Article
  11. Article
  12. Obesity under the moonlight of c-MYC.Frontiers in cell and developmental biology · 2023
    Review
  13. Evidence-based complementary and alternative medicine : eCAM · 2022
    Review
  14. Article
  15. Article
  16. Article
  17. Review
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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

17 authors at 3 institutions in 2 countries.

Houari AbdesselemFrom the Departments of Microbiology and Immunology.
Aisha MadaniFrom the Departments of Microbiology and Immunology.
Ahmad HaniFrom the Departments of Microbiology and Immunology.
Muna Al-NoubiBiochemistry, and.
Neha GoswamiBiochemistry, and.
Hisham Ben HamidaneBiochemistry, and.
Anja M BillingBiochemistry, and.
Jennifer PasquierGenetic Medicine, Weill Cornell Medicine Qatar, Qatar Foundation, Education City, P.O. Box 24144, Doha, Qatar.
Michael S Bonkowskithe Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, and.
Najeeb HalabiGenetic Medicine, Weill Cornell Medicine Qatar, Qatar Foundation, Education City, P.O. Box 24144, Doha, Qatar.
Rajaa DalloulFrom the Departments of Microbiology and Immunology.
Mohamed Z SheriffFrom the Departments of Microbiology and Immunology.
Nasrin MesaeliBiochemistry, and.
Mohamed ElRayessthe Life Sciences Research Division, Anti-Doping Lab Qatar, P.O. Box 27775, Doha, Qatar.
David A Sinclairthe Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, and.
Johannes GraumannBiochemistry, and.
Nayef A MazloumFrom the Departments of Microbiology and Immunology, nam2016@qatar-med.cornell.edu.
Harvard University · USWeill Cornell Medical College in Qatar · QAAnti-Doping Laboratory · QA

Funding

SIRT1 as a regulator of health and lifespan of mammalsR37AG028730 · NIA · HARVARD MEDICAL SCHOOL · PI SINCLAIR, DAVID A. · 2012 to 2021
$4.1M
NIA NIH HHS R37 AG028730
6 · The paper itself

Abstract

The expansion of fat mass in the obese state is due to increased adipocyte hypertrophy and hyperplasia. The molecular mechanism that drives adipocyte hyperplasia remains unknown. The NAD(+)-dependent protein deacetylase sirtuin 1 (SIRT1), a key regulator of mammalian metabolism, maintains proper metabolic functions in many tissues, counteracting obesity. Here we report that differentiated adipocytes are hyperplastic when SIRT1 is knocked down stably in mouse 3T3-L1 preadipocytes. This phenotype is associated with dysregulated adipocyte metabolism and enhanced inflammation. We also demonstrate that SIRT1 is a key regulator of proliferation in preadipocytes. Quantitative proteomics reveal that the c-Myc pathway is altered to drive enhanced proliferation in SIRT1-silenced 3T3-L1 cells. Moreover, c-Myc is hyperacetylated, levels of p27 are reduced, and cyclin-dependent kinase 2 (CDK2) is activated upon SIRT1 reduction. Remarkably, differentiating SIRT1-silenced preadipocytes exhibit enhanced mitotic clonal expansion accompanied by reduced levels of p27 as well as elevated levels of CCAAT/enhancer-binding protein β (C/EBPβ) and c-Myc, which is also hyperacetylated. c-Myc activation and enhanced proliferation phenotype are also found to be SIRT1-dependent in proliferating mouse embryonic fibroblasts and differentiating human SW872 preadipocytes. Reducing both SIRT1 and c-Myc expression in 3T3-L1 cells simultaneously does not induce the adipocyte hyperplasia phenotype, confirming that SIRT1 controls adipocyte hyperplasia through c-Myc regulation. A better understanding of the molecular mechanisms of adipocyte hyperplasia will open new avenues toward understanding obesity.

Indexed as

Gene Expression Regulation3T3-L1 CellsAdipocytesAnimalsCCAAT-Enhancer-Binding Protein-betaCell DifferentiationCell ProliferationFibroblastsGene SilencingHEK293 CellsHumansHyperplasiaHypertrophyInflammationMiceObesityCCAAT-Enhancer-Binding Protein-betaProto-Oncogene Proteins c-mycSirt1 protein, mouseSirtuin 1adipogenesiscell proliferationhyperplasiaMyc (c-Myc)sirtuin 1 (SIRT1)

Identifiers

PMID26655722
PMCPMC4732199
OpenAlexW2196929460

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.