Evidence map›Paper›PMID 25157633›Full record

ArticlePloS one2014

Enzymatic oxidation of cholesterol: properties and functional effects of cholestenone in cell membranes.

Maarit Neuvonen, Moutusi Manna, Sini Mokkila, Matti Javanainen, Tomasz Rog, Zheng Liu, Robert Bittman, Ilpo Vattulainen, Elina Ikonen

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

29 citing papers in PubMed, 64 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Closed-loop fluid-fluid immiscibility in binary lipid-sterol membranes.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  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

9 authors at 5 institutions in 3 countries.

Maarit NeuvonenInstitute of Biomedicine, Anatomy, University of Helsinki, Helsinki, Finland.
Moutusi MannaDepartment of Physics, Tampere University of Technology, Tampere, Finland.
Sini MokkilaDepartment of Physics, Tampere University of Technology, Tampere, Finland.
Matti JavanainenDepartment of Physics, Tampere University of Technology, Tampere, Finland.
Tomasz RogDepartment of Physics, Tampere University of Technology, Tampere, Finland.
Zheng LiuDepartment of Chemistry and Biochemistry, Queens College, The City University of New York, Flushing, NY, United States of America.
Robert BittmanDepartment of Chemistry and Biochemistry, Queens College, The City University of New York, Flushing, NY, United States of America.
Ilpo VattulainenDepartment of Physics, Tampere University of Technology, Tampere, Finland; MEMPHYS - Center of Biomembrane Physics, University of Southern Denmark, Odense, Denmark.
Elina IkonenInstitute of Biomedicine, Anatomy, University of Helsinki, Helsinki, Finland; Minerva Foundation Institute for Medical Research, Helsinki, Finland.
Tampere University · FIQueens College, CUNY · USUniversity of Helsinki · FITampere University · FIUniversity of Southern Denmark · DK

Funding

Synthesis of Novel Bioactive Sphingolipids as a ResourceR24HL083187 · NHLBI · QUEENS COLLEGE · PI BITTMAN, ROBERT · 2006 to 2013
$2.5M
NHLBI NIH HHS HL083187NHLBI NIH HHS R24 HL083187
6 · The paper itself

Abstract

Bacterial cholesterol oxidase is commonly used as an experimental tool to reduce cellular cholesterol content. That the treatment also generates the poorly degradable metabolite 4-cholesten-3-one (cholestenone) has received less attention. Here, we investigated the membrane partitioning of cholestenone using simulations and cell biological experiments and assessed the functional effects of cholestenone in human cells. Atomistic simulations predicted that cholestenone reduces membrane order, undergoes faster flip-flop and desorbs more readily from membranes than cholesterol. In primary human fibroblasts, cholestenone was released from membranes to physiological extracellular acceptors more avidly than cholesterol, but without acceptors it remained in cells over a day. To address the functional effects of cholestenone, we studied fibroblast migration during wound healing. When cells were either cholesterol oxidase treated or part of cellular cholesterol was exchanged for cholestenone with cyclodextrin, cell migration during 22 h was markedly inhibited. Instead, when a similar fraction of cholesterol was removed using cyclodextrin, cells replenished their cholesterol content in 3 h and migrated similarly to control cells. Thus, cholesterol oxidation produces long-term functional effects in cells and these are in part due to the generated membrane active cholestenone.

Indexed as

AnimalsBacteriaCell LineCell MembraneCell Membrane PermeabilityCell MovementCells, CulturedCholestenonesCholesterolCholesterol OxidaseFibroblastsHumansMiceMolecular Dynamics SimulationOxidation-Reductioncholest-4-en-3-oneCholestenonesCholesterolCholesterol Oxidase

Identifiers

PMID25157633
PMCPMC4144813
OpenAlexW2065991910

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.