Evidence map›Paper›PMID 25110833›Full record

ArticleFree radical biology & medicine2014

Molecular speciation and dynamics of oxidized triacylglycerols in lipid droplets: Mass spectrometry and coarse-grained simulations.

Dariush Mohammadyani, Vladimir A Tyurin, Matthew O'Brien, Yoel Sadovsky, Dmitry I Gabrilovich, Judith Klein-Seetharaman, Valerian E Kagan

Abstract read
In one paragraph

Article in Free radical biology & medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.9field-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

23 citing papers in PubMed, 33 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. The cell biology of ferroptosis.Nature reviews. Molecular cell biology · 2024
    Review
  7. Lipid droplets and cellular lipid flux.Nature cell biology · 2024
    Review
  8. Article
  9. Review
  10. Article
  11. Redox Pioneer: Professor Valerian Kagan.Antioxidants & redox signaling · 2022
    Article
  12. Review
  13. Review
  14. Phospholipase iPLANature chemical biology · 2021
    Article
  15. Review
  16. Article
  17. Review
  18. Lipid droplet functions beyond energy storage.Biochimica et biophysica acta. Molecular and cell biology of lipids · 2017
    Review
  19. Article
  20. Dendritic cells in cancer: the role revisited.Current opinion in immunology · 2017
    Review
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 3 institutions in 2 countries.

Dariush MohammadyaniDepartment of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15219, USA; Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA 15219, USA.
Vladimir A TyurinDepartment of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA 15219, USA; Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA 15219, USA.
Matthew O'BrienMagee-Womens Research Institute, University of Pittsburgh, Pittsburgh, PA 15219, USA.
Yoel SadovskyMagee-Womens Research Institute, University of Pittsburgh, Pittsburgh, PA 15219, USA.
Dmitry I GabrilovichThe Wistar Institute, Philadelphia, PA 19104, USA.
Judith Klein-SeetharamanDivision of Metabolic and Vascular Health, Medical School, University of Warwick, Coventry CV4 7AL, UK.
Valerian E KaganDepartment of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA 15219, USA; Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA 15219, USA. Electronic address: kagan@pitt.edu.
University of Pittsburgh · USThe Wistar Institute · USUniversity of Warwick · GB

Funding

Training and EducationU19AI068021 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI GREENBERGER, JOEL S · 2005 to 2019
$44.4M
Regulation of Cardiolin Byosynthesis in Epithelial InjuryP01HL114453 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI MALLAMPALLI, RAMA K · 2014 to 2023
$21.3M
Mapping Lipid Oxidation in Traumatic Brain Injury by Mass Spectrometric ImagingR01NS076511 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Hülya Bayir, Valerian E Kagan · 2012 to 2026
$6.8M
Stress Proteins and Neuroprotection Against Parkinsonian Cell DeathP01NS059806 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CHU, CHARLEEN T · 2009 to 2013
$6.3M
Transcriptional and developmental regulation of placental fuel storage and metabP01HD069316 · NICHD · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI BARAK, YAACOV · 2012 to 2016
$5.0M
Lipids and Myeloid Cell Function in CancerR01CA165065 · NCI · WISTAR INSTITUTE · PI KAGAN, VALERIAN E, MONTANER, LUIS J · 2012 to 2022
$3.8M
Regulation of Trophoblast Differentiation and FunctionR01ES011597 · NIEHS · WASHINGTON UNIVERSITY · PI SADOVSKY, YOEL · 2001 to 2011
$3.1M
Lung Oxidative Stress/Inflammation By Carbon NanotubesR01OH008282 · OH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI KAGAN, VALERIAN E · 2005 to 2014
$2.8M
Oxygenated Species of Cardiolipins as Biomarkers of Mitochondrial DysfunctionR01ES020693 · NIEHS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI KAGAN, VALERIAN E, TYURINA, YULIA Y · 2011 to 2015
$1.7M
NCI NIH HHS R01 CA165065NCI NIH HHS R01CA165065NHLBI NIH HHS P01 HL114453NHLBI NIH HHS P01HL114453NIAID NIH HHS U19 AI068021NIAID NIH HHS U19AI068021NICHD NIH HHS P01 HD069316NICHD NIH HHS P01HD069316NIEHS NIH HHS R01 ES011597NIEHS NIH HHS R01ES011597NIEHS NIH HHS R01 ES020693NIEHS NIH HHS R01ES020693NINDS NIH HHS P01 NS059806NINDS NIH HHS R01 NS076511NIOSH CDC HHS OH008282NIOSH CDC HHS R01 OH008282
6 · The paper itself

Abstract

Lipid droplets (LDs) are ubiquitous and physiologically active organelles regulating storage and mobilization of lipids in response to metabolic demands. Among the constituent LD neutral lipids, such as triacylglycerols, cholesterol esters, and free fatty acids, oxidizable polyunsaturated molecular species may be quite abundant, yet the structural and functional roles of their oxidation products have not been studied. Our previous work documented the presence of these peroxidized species in LDs. Assuming that hydrophilic oxygen-containing functionalities may markedly change the hydrophobic/hydrophilic molecular balance, here we utilized computational modeling to test the hypothesis that lipid peroxidation causes redistribution of lipids between the highly hydrophobic core and the polar surface (phospho)lipid monolayer-the area enriched with integrated enzymatic machinery. Using quantitative liquid chromatography/mass spectrometry, we characterized molecular speciation of oxTAGs in LDs of dendritic cells in cancer and hypoxic trophoblasts cells as two cellular models associated with dyslipidemia. Among the many types of oxidized lipids identified, we found that oxidatively truncated forms and hydroxyl derivatives of TAGs were the prevailing oxidized lipid species in LDs in both cell types. Using coarse-grained molecular dynamics (CG-MD) simulations we established that lipid oxidation changed their partitioning whereby oxidized lipids migrated into the outer monolayer of the LD, where they can affect essential metabolic pathways and undergo conversions, possibly leading to the formation of oxygenated lipid mediators.

Indexed as

Molecular Dynamics SimulationChromatography, LiquidColonic NeoplasmsHumansHydrophobic and Hydrophilic InteractionsLipid DropletsLipidsLymphomaOxidation-ReductionSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationTriglyceridesTrophoblastsTumor Cells, CulturedLipidsTriglyceridesCancerHypoxiaLipid dropletLipid oxidationNeutral lipids

Identifiers

PMID25110833
PMCPMC4276254
OpenAlexW2082722370

What OpenQuestion holds

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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.