Evidence map›Paper›PMID 18056793›Full record

ArticleAmerican journal of physiology. Endocrinology and metabolism2008

Regulation of Kruppel-like factor 4, 9, and 13 genes and the steroidogenic genes LDLR, StAR, and CYP11A in ovarian granulosa cells.

Sekar Natesampillai, Jason Kerkvliet, Peter C K Leung, Johannes D Veldhuis

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Endocrinology and metabolism, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
0.5field-weighted citation impact, top 34% 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

19 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
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  3. Review
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  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. LH-induced Transcriptional Regulation ofInternational journal of molecular sciences · 2020
    Article
  11. Role ofInternational journal of molecular sciences · 2018
    Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. WNT4 is required for normal ovarian follicle development and female fertility.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2010
    Article
  19. 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

4 authors at 3 institutions in 2 countries.

Sekar NatesampillaiEndocrine Research Unit, Department of Internal Medicine, Mayo Clinic School of Medicine, Rochester, MN 55901, USA.
Jason Kerkvliet
Peter C K Leung
Johannes D Veldhuis
Institute of Nutrition, Metabolism and Diabetes · CAMayo Clinic · USUniversity of British Columbia · CA

Funding

ACTIONS OF ESTROGEN IN MATURING GRAAFIAN FOLLICLESR01HD016393 · NICHD · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI VELDHUIS, JOHANNES D · 1985 to 2005
$1.5M
Novel Active Repressor Model of Human LDL-Receptor RegulationR21HL086538 · NHLBI · MAYO CLINIC ROCHESTER · PI VELDHUIS, JOHANNES D · 2007 to 2008
$296k
NHLBI NIH HHS R21 HL086538NHLBI NIH HHS R21 HL 86538NICHD NIH HHS R01 HD016393NICHD NIH HHS R01 HD 16393
6 · The paper itself

Abstract

Kruppel-like factors (KLFs) are important Sp1-like eukaryotic transcriptional proteins. The LDLR, StAR, and CYP11A genes exhibit GC-rich Sp1-like sites, which have the potential to bind KLFs in multiprotein complexes. We now report that KLF4, KLF9, and KLF13 transcripts are expressed in and regulate ovarian cells. KLF4 and 13, but not KLF9, mRNA expression was induced and then repressed over time (P < 0.001). Combined LH and IGF-I stimulation increased KLF4 mRNA at 2 h (P < 0.01), whereas LH decreased KLF13 mRNA at 6 h (P < 0.05), and IGF-I reduced KLF13 at 24 h (P < 0.01) compared with untreated control. KLF9 was not regulated by either hormone. Transient transfection of KLF4, KLF9, and KLF13 suppressed LDLR/luc, StAR/luc, and CYP11A/luc by 80-90% (P < 0.001). Histone-deacetylase (HDAC) inhibitors stimulated LDLR/luc five- to sixfold and StAR/luc and CYP11A/luc activity twofold (P < 0.001) and partially reversed suppression by all three KLFs (P < 0.001). Deletion of the zinc finger domain of KLF13 abrogated repression of LDLR/luc. Lentiviral overexpression of the KLF13 gene suppressed LDLR mRNA (P < 0.001) and CYP11A mRNA (P = 0.003) but increased StAR mRNA (P = 0.007). Collectively, these data suggest that KLFs may recruit inhibitory complexes containing HDAC corepressors, thereby repressing LDLR and CYP11A transcription. Conversely, KLF13 may recruit unknown coactivators or stabilize StAR mRNA, thereby explaining enhancement of in situ StAR gene expression. These data introduce new potent gonadal transregulators of genes encoding proteins that mediate sterol uptake and steroid biosynthesis.

Indexed as

AnimalsCells, CulturedCholesterol Side-Chain Cleavage EnzymeCloning, MolecularEnzyme InhibitorsFemaleGene Expression RegulationGenetic VectorsGene Transfer TechniquesGranulosa CellsHistone Deacetylase InhibitorsHumansKruppel-Like Factor 4Kruppel-Like Transcription FactorsLentivirusPhosphoproteinsCholesterol Side-Chain Cleavage EnzymeEnzyme InhibitorsHistone Deacetylase InhibitorsKLF4 protein, humanKLF9 protein, humanKruppel-Like Factor 4Kruppel-Like Transcription FactorsPhosphoproteinsReceptors, LDLSteroidogenic Acute Regulatory ProteinSteroids

Identifiers

PMID18056793
PMCPMC2747322
OpenAlexW2122373913

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.