Evidence map›Paper›PMID 15330762›Full record

ArticleThe Biochemical journal2005

Insulin activates the rat sterol-regulatory-element-binding protein 1c (SREBP-1c) promoter through the combinatorial actions of SREBP, LXR, Sp-1 and NF-Y cis-acting elements.

Lauren M Cagen, Xiong Deng, Henry G Wilcox, Edwards A Park, Rajendra Raghow, Marshall B Elam

Open access · bronzeAbstract read
In one paragraph

Article in The Biochemical journal, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed
7.8field-weighted citation impact, top 2% 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

58 citing papers in PubMed, 139 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Role of SREBPs in Liver Diseases: A Mini-review.Journal of clinical and translational hepatology · 2018
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article
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

6 authors at 1 institution in 1 country.

Lauren M CagenDepartment of Pharmacology, The University of Tennessee Health Science Center, 874 Union Avenue, Memphis, TN 38163, USA. lcagen@utmem.edu
Xiong Deng
Henry G Wilcox
Edwards A Park
Rajendra Raghow
Marshall B Elam
University of Tennessee Health Science Center · US

Funding

Regulation of metabolic gene expressionR01DK059368 · NIDDK · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI PARK, EDWARDS A · 2003 to 2011
$2.1M
NIDDK NIH HHS DK-059368NIDDK NIH HHS R01 DK059368
6 · The paper itself

Abstract

The enhanced synthesis of fatty acids in the liver and adipose tissue in response to insulin is critically dependent on the transcription factor SREBP-1c (sterol-regulatory-element-binding protein 1c). Insulin increases the expression of the SREBP-1c gene in intact liver and in hepatocytes cultured in vitro. To learn the mechanism of this stimulation, we analysed the activation of the rat SREBP-1c promoter and its truncated or mutated congeners driving a luciferase reporter gene in transiently transfected rat hepatocytes. The rat SREBP-1c promoter contains binding sites for LXR (liver X receptor), Sp1, NF-Y (nuclear factor-Y) and SREBP itself. We have found that each of these sites is required for the full stimulatory response of the SREBP-1c promoter to insulin. Mutation of either the putative LXREs (LXR response elements) or the SRE (sterol response element) in the proximal SREBP-1c promoter reduced the stimulatory effect of insulin by about 50%. Insulin and the LXR agonist TO901317 increased the association of SREBP-1 with the SREBP-1c promoter. Ectopic expression of LXRalpha or SREBP-1c increased activity of the SREBP-1c promoter, and this effect is further enhanced by insulin. The Sp1 and NF-Y sites adjacent to the SRE are also required for full activation of the SREBP-1c promoter by insulin. We propose that the combined actions of the SRE, LXREs, Sp1 and NF-Y elements constitute an insulin-responsive cis-acting unit of the SREBP-1c gene in the liver.

Indexed as

AnimalsAnticholesteremic AgentsBenzenesulfonamidesCCAAT-Binding FactorCCAAT-Enhancer-Binding ProteinsCells, CulturedDNA-Binding ProteinsFluorocarbonsHydrocarbons, FluorinatedInsulinLiver X ReceptorsMaleMutationOrphan Nuclear ReceptorsPromoter Regions, GeneticProtein BindingAnticholesteremic AgentsBenzenesulfonamidesCCAAT-Binding FactorCCAAT-Enhancer-Binding ProteinsDNA-Binding ProteinsFluorocarbonsHydrocarbons, FluorinatedInsulinLiver X ReceptorsNr1h3 protein, ratnuclear factor YOrphan Nuclear ReceptorsReceptors, Cytoplasmic and NuclearRNA, MessengerSp1 Transcription FactorSp3 Transcription FactorSrebf1 protein, ratSterol Regulatory Element Binding Protein 1SulfonamidesT0901317Transcription Factors

Identifiers

PMID15330762
PMCPMC1134689
OpenAlexW2135536111

What Socratic 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 Socratic graph.