Evidence map›Paper›PMID 22927646›Full record

ArticleMolecular and cellular biology2012

Acid ceramidase (ASAH1) represses steroidogenic factor 1-dependent gene transcription in H295R human adrenocortical cells by binding to the receptor.

Natasha C Lucki, Donghui Li, Sibali Bandyopadhyay, Elaine Wang, Alfred H Merrill, Marion B Sewer

Open access · bronzeAbstract read
In one paragraph

Article in Molecular and cellular biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.4field-weighted citation impact, top 16% 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

16 citing papers in PubMed, 27 citations in OpenAlex.

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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

6 authors at 2 institutions in 1 country.

Natasha C LuckiSkaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California, USA.
Donghui Li
Sibali Bandyopadhyay
Elaine Wang
Alfred H Merrill
Marion B Sewer
Georgia Institute of Technology · USUniversity of California, San Diego · US

Funding

Nuclear Lipids in SteroidogenesisR01DK084178 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI SEWER, MARION B. · 2010 to 2014
$1.4M
NIDDK NIH HHS DK084178NIDDK NIH HHS R01 DK084178NIGMS NIH HHS GM069388
6 · The paper itself

Abstract

Adrenocorticotropin (ACTH) signaling increases glucocorticoid production by promoting the interaction of transcription factors and coactivator proteins with the promoter of steroidogenic genes. The nuclear receptor steroidogenic factor 1 (SF-1) is essential for steroidogenic gene transcription. Sphingosine (SPH) is a ligand for SF-1. Moreover, suppression of expression of acid ceramidase (ASAH1), an enzyme that produces SPH, increases the transcription of multiple steroidogenic genes. Given that SF-1 is a nuclear protein, we sought to define the molecular mechanisms by which ASAH1 regulates SF-1 function. We show that ASAH1 is localized in the nuclei of H295R adrenocortical cells and that cyclic AMP (cAMP) signaling promotes nuclear sphingolipid metabolism in an ASAH1-dependent manner. ASAH1 suppresses SF-1 activity by directly interacting with the receptor. Chromatin immunoprecipitation (ChIP) assays revealed that ASAH1 is recruited to the promoter of various SF-1 target genes and that ASAH1 and SF-1 colocalize on the same promoter region of the CYP17A1 and steroidogenic acute regulatory protein (StAR) genes. Taken together, these results demonstrate that ASAH1 is a novel coregulatory protein that represses SF-1 function by directly binding to the receptor on SF-1 target gene promoters and identify a key role for nuclear lipid metabolism in regulating gene transcription.

Indexed as

Lipid MetabolismTranscription, GeneticAcid CeramidaseAdrenal CortexAdrenocorticotropic HormoneAnimalsCell LineCell NucleusChromatin ImmunoprecipitationCyclic AMPDNA-Binding ProteinsHaplorhiniHumansMicePhosphoproteinsPromoter Regions, GeneticAcid CeramidaseAdrenocorticotropic HormoneASAH1 protein, humanCyclic AMPCYP17A1 protein, humanDNA-Binding ProteinsNR5A1 protein, humanPhosphoproteinsRNA, Small InterferingSphingolipidsSphingosineSteroid 17-alpha-HydroxylaseSteroidogenic Acute Regulatory ProteinSteroidogenic Factor 1

Identifiers

PMID22927646
PMCPMC3486137
OpenAlexW2149646689

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.