Evidence map›Paper›PMID 23267081›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2013

Mice with an adipocyte-specific lipin 1 separation-of-function allele reveal unexpected roles for phosphatidic acid in metabolic regulation.

Mayurranjan S Mitra, Zhouji Chen, Hongmei Ren, Thurl E Harris, Kari T Chambers, Angela M Hall, Karim Nadra, Samuel Klein, Roman Chrast, Xiong Su and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

46 citing papers in PubMed, 66 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Role of lipins in cardiovascular diseases.Lipids in health and disease · 2023
    Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Metabolic Alterations in Myotonic Dystrophy Type 1 and Their Correlation with Lipin.International journal of environmental research and public health · 2021
    Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. 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

12 authors at 4 institutions in 2 countries.

Mayurranjan S MitraDepartment of Medicine, Division of Geriatrics and Nutritional Science, Washington University School of Medicine, St Louis, MO 63110, USA.
Zhouji Chen
Hongmei Ren
Thurl E Harris
Kari T Chambers
Angela M Hall
Karim Nadra
Samuel Klein
Roman Chrast
Xiong Su
Andrew J Morris
Brian N Finck
Washington University in St. Louis · USUniversity of Kentucky · USUniversity of Lausanne · CHUniversity of Virginia · US

Funding

Washington University Institute of Clinical and Translational Sciences (UL1)UL1RR024992 · NCRR · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2007 to 2011
$45.4M
Washington University Institute of Clinical and Translational SciencesUL1TR000448 · NCATS · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2012 to 2016
$41.4M
Washington University DDRCC Supplemental Equipment RequestP30DK052574 · NIDDK · WASHINGTON UNIVERSITY · PI Nicholas O. Davidson · 2000 to 2026
$30.8M
Washington University Nutrition Obesity Research CenterP30DK056341 · NIDDK · WASHINGTON UNIVERSITY · PI Brian N Finck · 1999 to 2026
$30.2M
WU P&FP30DK020579 · NIDDK · WASHINGTON UNIVERSITY · PI Irfan J Lodhi · 2013 to 2026
$27.1M
TRANSGENICS COREP60DK020579 · NIDDK · WASHINGTON UNIVERSITY · PI SCHAFFER, JEAN E. · 1986 to 2012
$25.2M
THROMBOSPONDIN1 MEDIATES MACROPHAGE INFILTRATION INTO ADIPOSE TISSUE AND PROMOTEP20RR021954 · NCRR · UNIVERSITY OF KENTUCKY · PI ECKHARDT, ERIK · 2008 to 2011
$8.3M
THERMOGENESIS AND EXERCISE IN LEAN, OBESE, AND DIABETICR01DK037948 · NIDDK · WEILL MEDICAL COLLEGE OF CORNELL UNIV · PI KLEIN, SAMUEL · 1987 to 2012
$4.6M
LIPIN 1 IN THE REGULATION OF HEPATIC LIPID METABOLISMR01DK078187 · NIDDK · WASHINGTON UNIVERSITY · PI FINCK, BRIAN N · 2008 to 2016
$2.8M
Role of Lipid Phosphatases in Cholesterol and Triglyceride SynthesisR01GM050388 · NIGMS · UNIVERSITY OF NORTH CAROLINA CHAPEL HILL · PI MORRIS, ANDREW J · 1994 to 2011
$2.7M
Thermo/Finnigan TSQ AM Triple Stage Quadrupole Mass SpectrometerS10RR024598 · NCRR · UNIVERSITY OF KENTUCKY · PI MORRIS, ANDREW J · 2008 to 2008
$493k
NCATS NIH HHS UL1 TR000448NCRR NIH HHS P20 RR021954NCRR NIH HHS P20RR021954NCRR NIH HHS P20 RR-21954NCRR NIH HHS S10 RR024598NCRR NIH HHS UL1 RR024992NIDDK NIH HHS P30 DK020579NIDDK NIH HHS P30 DK052574NIDDK NIH HHS P30 DK056341NIDDK NIH HHS P30 DK52574NIDDK NIH HHS P30 DK56341NIDDK NIH HHS P60 DK020579NIDDK NIH HHS R01 DK037948NIDDK NIH HHS R01 DK078187NIDDK NIH HHS R01 DK37948NIDDK NIH HHS R01 DK78187NIGMS NIH HHS R01 GM050388NIGMS NIH HHS R01 GM50388
6 · The paper itself

Abstract

Lipin 1 is a coregulator of DNA-bound transcription factors and a phosphatidic acid (PA) phosphatase (PAP) enzyme that catalyzes a critical step in the synthesis of glycerophospholipids. Lipin 1 is highly expressed in adipocytes, and constitutive loss of lipin 1 blocks adipocyte differentiation; however, the effects of Lpin1 deficiency in differentiated adipocytes are unknown. Here we report that adipocyte-specific Lpin1 gene recombination unexpectedly resulted in expression of a truncated lipin 1 protein lacking PAP activity but retaining transcriptional regulatory function. Loss of lipin 1-mediated PAP activity in adipocytes led to reduced glyceride synthesis and increased PA content. Characterization of the deficient mice also revealed that lipin 1 normally modulates cAMP-dependent signaling through protein kinase A to control lipolysis by metabolizing PA, which is an allosteric activator of phosphodiesterase 4 and the molecular target of rapamycin. Consistent with these findings, lipin 1 expression was significantly related to adipose tissue lipolytic rates and protein kinase A signaling in adipose tissue of obese human subjects. Taken together, our findings identify lipin 1 as a reciprocal regulator of triglyceride synthesis and hydrolysis in adipocytes, and suggest that regulation of lipolysis by lipin 1 is mediated by PA-dependent modulation of phosphodiesterase 4.

Indexed as

3T3-L1 CellsAdipocytesAllelesAnimalsBlotting, WesternCloning, MolecularCyclic AMP-Dependent Protein KinasesCyclic Nucleotide Phosphodiesterases, Type 4DNA PrimersFemaleGas Chromatography-Mass SpectrometryGlyceridesHumansLipolysisMaleMetabolic Networks and PathwaysCyclic AMP-Dependent Protein KinasesCyclic Nucleotide Phosphodiesterases, Type 4DNA PrimersGlyceridesLpin1 protein, mouseNuclear ProteinsPhosphatidate PhosphatasePhosphatidic Acids

Identifiers

PMID23267081
PMCPMC3545773
OpenAlexW2115111255

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.