Evidence map›Paper›PMID 25225331›Full record

ArticleMolecular and cellular biology2014

A cell-autonomous molecular cascade initiated by AMP-activated protein kinase represses steroidogenesis.

Houssein S Abdou, Francis Bergeron, Jacques J Tremblay

Open access · bronzeAbstract read
In one paragraph

Article in Molecular and cellular biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

30 citing papers in PubMed, 70 citations in OpenAlex.

  1. Article
  2. Review
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  4. Article
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  13. Vitamin BJournal of the Turkish German Gynecological Association · 2022
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  14. Article
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  17. Review
  18. Review
  19. Article
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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

3 authors at 1 institution in 3 countries.

Houssein S AbdouReproduction, Mother and Child Health, Centre de Recherche du Centre Hospitalier Universitaire de Québec, Québec City, Québec, Canada.
Francis BergeronReproduction, Mother and Child Health, Centre de Recherche du Centre Hospitalier Universitaire de Québec, Québec City, Québec, Canada.
Jacques J TremblayReproduction, Mother and Child Health, Centre de Recherche du Centre Hospitalier Universitaire de Québec, Québec City, Québec, Canada Centre for Research in Biology of Reproduction, Department of Obstetrics, Gynecology, and Reproduction, Faculty of Medicine, Université Laval, Québec City, Québec, Canada Jacques-J.Tremblay@crchul.ulaval.ca.
Centre hospitalier universitaire de Québec · CA

Funding

Canadian Institutes of Health Research MOP-81387
6 · The paper itself

Abstract

Steroid hormones regulate essential physiological processes, and inadequate levels are associated with various pathological conditions. In testosterone-producing Leydig cells, steroidogenesis is strongly stimulated by luteinizing hormone (LH) via its receptor leading to increased cyclic AMP (cAMP) production and expression of the steroidogenic acute regulatory (STAR) protein, which is essential for the initiation of steroidogenesis. Steroidogenesis then passively decreases with the degradation of cAMP into AMP by phosphodiesterases. In this study, we show that AMP-activated protein kinase (AMPK) is activated following cAMP-to-AMP breakdown in MA-10 and MLTC-1 Leydig cells. Activated AMPK then actively inhibits cAMP-induced steroidogenesis by repressing the expression of key regulators of steroidogenesis, including Star and Nr4a1. Similar results were obtained in Y-1 adrenal cells and in the constitutively steroidogenic R2C cells. We have also determined that maximum AMPK activation following stimulation of steroidogenesis in MA-10 Leydig cells occurs when steroid hormone production has reached a plateau. Our data identify AMPK as a molecular rheostat that actively represses steroid hormone biosynthesis to preserve cellular energy homeostasis and prevent excess steroid production.

Indexed as

3',5'-Cyclic-AMP PhosphodiesterasesAdenosine MonophosphateAdrenal GlandsAMP-Activated Protein KinasesAnimalsBiological TransportCell Line, TumorCholesterolCyclic AMPE1A-Associated p300 ProteinEnergy MetabolismLeydig CellsLuteinizing HormoneMaleMiceMice, Knockout3',5'-Cyclic-AMP PhosphodiesterasesAdenosine MonophosphateAMP-Activated Protein KinasesCholesterolCyclic AMPE1A-Associated p300 ProteinEp300 protein, mouseLuteinizing HormoneNr4a1 protein, mouseNuclear Receptor Subfamily 4, Group A, Member 1Pde8a protein, mousePhosphoproteinsPrkaa1 protein, mouseProgesteroneProtein Serine-Threonine KinasesRNA, Small InterferingScarb1 protein, mouseScavenger Receptors, Class BSteroidogenic Acute Regulatory ProteinSteroidogenic Factor 1steroidogenic factor 1, mouseStk11 protein, mouseTestosterone

Identifiers

PMID25225331
PMCPMC4248749
OpenAlexW2158939789

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.