Evidence map›Paper›PMID 19748893›Full record

ArticleThe Journal of biological chemistry2009

Diacylglycerol enrichment of endoplasmic reticulum or lipid droplets recruits perilipin 3/TIP47 during lipid storage and mobilization.

James R Skinner, Trevor M Shew, Danielle M Schwartz, Anatoly Tzekov, Christin M Lepus, Nada A Abumrad, Nathan E Wolins

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed
5.6field-weighted citation impact, top 5% 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

85 citing papers in PubMed, 156 citations in OpenAlex.

  1. Review
  2. Article
  3. Fibro-adipogenic progenitor cells from murine SMA muscles are intrinsically adipogenic.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
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  5. Review
  6. Review
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  9. Review
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  11. Article
  12. Concept of lipid droplet biogenesis.European journal of cell biology · 2023
    Review
  13. Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article

25 more citing papers are in PubMed but not listed here.

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

7 authors at 1 institution in 1 country.

James R SkinnerCenter for Human Nutrition, Washington University School of Medicine, St. Louis, Missouri 63110, USA.
Trevor M Shew
Danielle M Schwartz
Anatoly Tzekov
Christin M Lepus
Nada A Abumrad
Nathan E Wolins
Washington University in St. Louis · US

Funding

Washington University Nutrition Obesity Research CenterP30DK056341 · NIDDK · WASHINGTON UNIVERSITY · PI Jonathan R Brestoff · 1999 to 2026
$30.2M
FATTY ACID TRANSPORTER: REGULATION, IDENTIFICATIONR01DK033301 · NIDDK · WASHINGTON UNIVERSITY · PI ABUMRAD, NADA A. · 1986 to 2017
$5.2M
NIDDK NIH HHS DK56351NIDDK NIH HHS P30 DK056341NIDDK NIH HHS R01 DK033301NIDDK NIH HHS R01DK 33301
6 · The paper itself

Abstract

Fatty acid-induced triacylglycerol synthesis produces triacylglycerol droplets with a protein coat that includes perilipin 3/TIP47 and perilipin 4/S3-12. This study addresses the following two questions. Where do lipid droplets emerge, and how are their coat proteins recruited? We show that perilipin 3- and perilipin 4-coated lipid droplets emerge along the endoplasmic reticulum (ER). Blocking membrane trafficking with AlF(4)(-) during fatty acid-induced triacylglycerol synthesis drove perilipin 3 to the tubular ER. Forskolin, which like AlF(4)(-) activates adenylate cyclase, did not redistribute perilipin 3, but when added together with AlF(4)(-) perilipin 3 was recruited to lipid droplets rather than the ER. Thus inhibiting trafficking with AlF(4)(-) redistributed perilipin 3 differently under conditions of triacylglycerol synthesis (fatty acid addition) versus hydrolysis (forskolin) suggesting a shared acylglycerol-mediated mechanism. We tested whether diacylglycerol (DG), the immediate precursor of triacylglycerol and its first hydrolytic product, affects the distribution of perilipin 3. Stabilizing DG with the DG lipase inhibitor RHC80267 enhanced the perilipin 3 recruited to lipid droplets and raised DG levels in this fraction. Treating cells with a membrane-permeable DG recruited perilipin 3 to the ER. Stabilizing DG, by blocking its hydrolysis with RHC80267 or its acylation with triacsin C, enhanced recruitment of perilipin 3 to the ER. Expressing the ER enzyme DGAT1, which removes DG by converting it to triacylglycerol, attenuated perilipin 3 DG-induced ER recruitment. Membrane-permeable DG also drove perilipin 4 and 5 onto the ER. Together the data suggest that these lipid droplet proteins are recruited to DG-enriched membranes thereby linking lipid coat proteins to the metabolic state of the cell.

Indexed as

Lipid MetabolismAnimalsCarrier ProteinsCells, CulturedDiacylglycerol O-AcyltransferaseDiglyceridesEndoplasmic ReticulumMicePerilipin-3Stromal CellsCarrier ProteinsDgat1 protein, mouseDiacylglycerol O-AcyltransferaseDiglyceridesPerilipin-3Plin3 protein, mouse

Identifiers

PMID19748893
PMCPMC2781494
OpenAlexW1976525048

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.