Evidence map›Paper›PMID 23345410›Full record

ArticleJournal of lipid research2013

Cardiac-specific overexpression of perilipin 5 provokes severe cardiac steatosis via the formation of a lipolytic barrier.

Nina M Pollak, Martina Schweiger, Doris Jaeger, Dagmar Kolb, Manju Kumari, Renate Schreiber, Stephanie Kolleritsch, Philipp Markolin, Gernot F Grabner, Christoph Heier and 6 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of lipid research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
7.7field-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

70 citing papers in PubMed, 119 citations in OpenAlex.

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  14. Lipotoxicity as a therapeutic target in obesity and diabetic cardiomyopathy.Journal of pharmacy & pharmaceutical sciences : a publication of the Canadian Society for Pharmaceutical Sciences, Societe canadienne des sciences pharmaceutiques · 2024
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10 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

16 authors at 3 institutions in 1 country.

Nina M PollakInstitute of Molecular Biosciences, University of Graz, 8010 Graz, Austria.
Martina Schweiger
Doris Jaeger
Dagmar Kolb
Manju Kumari
Renate Schreiber
Stephanie Kolleritsch
Philipp Markolin
Gernot F Grabner
Christoph Heier
Kathrin A Zierler
Thomas Rülicke
Robert Zimmermann
Achim Lass
Rudolf Zechner
Guenter Haemmerle
University of Graz · ATMedical University of Graz · ATUniversity of Veterinary Medicine Vienna · AT

Funding

Austrian Science Fund FWF F 3001Austrian Science Fund FWF F 3002Austrian Science Fund FWF W 1226
6 · The paper itself

Abstract

Cardiac triacylglycerol (TG) catabolism critically depends on the TG hydrolytic activity of adipose triglyceride lipase (ATGL). Perilipin 5 (Plin5) is expressed in cardiac muscle (CM) and has been shown to interact with ATGL and its coactivator comparative gene identification-58 (CGI-58). Furthermore, ectopic Plin5 expression increases cellular TG content and Plin5-deficient mice exhibit reduced cardiac TG levels. In this study we show that mice with cardiac muscle-specific overexpression of perilipin 5 (CM-Plin5) massively accumulate TG in CM, which is accompanied by moderately reduced fatty acid (FA) oxidizing gene expression levels. Cardiac lipid droplet (LD) preparations from CM of CM-Plin5 mice showed reduced ATGL- and hormone-sensitive lipase-mediated TG mobilization implying that Plin5 overexpression restricts cardiac lipolysis via the formation of a lipolytic barrier. To test this hypothesis, we analyzed TG hydrolytic activities in preparations of Plin5-, ATGL-, and CGI-58-transfected cells. In vitro ATGL-mediated TG hydrolysis of an artificial micellar TG substrate was not inhibited by the presence of Plin5, whereas Plin5-coated LDs were resistant toward ATGL-mediated TG catabolism. These findings strongly suggest that Plin5 functions as a lipolytic barrier to protect the cardiac TG pool from uncontrolled TG mobilization and the excessive release of free FAs.

Indexed as

1-Acylglycerol-3-Phosphate O-AcyltransferaseAcyltransferasesAnimalsCardiomyopathiesCOS CellsEnergy MetabolismImmunoblottingIntracellular Signaling Peptides and ProteinsLipaseLipolysisMiceMice, TransgenicMuscle ProteinsMyocardiumTriglycerides1-Acylglycerol-3-Phosphate O-AcyltransferaseAbhd5 protein, mouseAcyltransferasesIntracellular Signaling Peptides and ProteinsLipaselipid storage droplet protein 5, mouseMuscle ProteinsPNPLA2 protein, mouseTriglycerides

Identifiers

PMID23345410
PMCPMC3605985
OpenAlexW1989863035

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.