Evidence map›Paper›PMID 22207480›Full record

ReviewThe Journal of membrane biology2012

Functions of cholesterol and the cholesterol bilayer domain specific to the fiber-cell plasma membrane of the eye lens.

Witold K Subczynski, Marija Raguz, Justyna Widomska, Laxman Mainali, Alexey Konovalov

Open access · greenAbstract readReview
In one paragraph

Review in The Journal of membrane biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

47 citing papers in PubMed, 72 citations in OpenAlex.

  1. Review
  2. Preventing Age-Related Nuclear Cataract Development - Is Cholesterol the Key?Investigative ophthalmology & visual science · 2026
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Binding of βInternational journal of molecular sciences · 2023
    Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. The aging mouse lens transcriptome.Experimental eye research · 2021
    Article
  20. 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

5 authors at 1 institution in 3 countries.

Witold K SubczynskiDepartment of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA. subczyn@mcw.edu
Marija Raguz
Justyna Widomska
Laxman Mainali
Alexey Konovalov
Medical College of Wisconsin · US

Funding

TR&D Project 3P41EB001980 · NIBIB · MEDICAL COLLEGE OF WISCONSIN · PI KLUG, CANDICE S · 2003 to 2017
$16.3M
DEVELOPMENT OF BIOMEDICAL ESR INSTRUMENTATIONR01EB002052 · NIBIB · MEDICAL COLLEGE OF WISCONSIN · PI KLUG, CANDICE S · 2003 to 2015
$6.4M
Liquid Rafts in Eye Lens: Discrimination by Pulse EPRR01EY015526 · NEI · MEDICAL COLLEGE OF WISCONSIN · PI SUBCZYNSKI, WITOLD K · 2005 to 2019
$4.8M
Is Cholesterol Crystalline Domain a Barrier to Oxygen Transport in the Eye Lens?R03TW008052 · FIC · MEDICAL COLLEGE OF WISCONSIN · PI SUBCZYNSKI, WITOLD K · 2009 to 2011
$104k
FIC NIH HHS R03 TW008052FIC NIH HHS TW008052NEI NIH HHS EY015526NEI NIH HHS R01 EY015526NIBIB NIH HHS EB001980NIBIB NIH HHS EB002052NIBIB NIH HHS P41 EB001980NIBIB NIH HHS R01 EB002052
6 · The paper itself

Abstract

The most unique feature of the eye lens fiber-cell plasma membrane is its extremely high cholesterol content. Cholesterol saturates the bulk phospholipid bilayer and induces formation of immiscible cholesterol bilayer domains (CBDs) within the membrane. Our results (based on EPR spin-labeling experiments with lens-lipid membranes), along with a literature search, have allowed us to identify the significant functions of cholesterol specific to the fiber-cell plasma membrane, which are manifest through cholesterol-membrane interactions. The crucial role is played by the CBD. The presence of the CBD ensures that the surrounding phospholipid bilayer is saturated with cholesterol. The saturating cholesterol content in fiber-cell membranes keeps the bulk physical properties of lens-lipid membranes consistent and independent of changes in phospholipid composition. Thus, the CBD helps to maintain lens-membrane homeostasis when the membrane phospholipid composition changes significantly. The CBD raises the barrier for oxygen transport across the fiber-cell membrane, which should help to maintain a low oxygen concentration in the lens interior. It is hypothesized that the appearance of the CBD in the fiber-cell membrane is controlled by the phospholipid composition of the membrane. Saturation with cholesterol smoothes the phospholipid-bilayer surface, which should decrease light scattering and help to maintain lens transparency. Other functions of cholesterol include formation of hydrophobic and rigidity barriers across the bulk phospholipid-cholesterol domain and formation of hydrophobic channels in the central region of the membrane for transport of small, nonpolar molecules parallel to the membrane surface. In this review, we provide data supporting these hypotheses.

Indexed as

AnimalsBiological TransportCell Membrane StructuresCholesterolHumansHydrophobic and Hydrophilic InteractionsIon ChannelsLens, CrystallineLipid BilayersMembrane FluidityOxygenPhospholipidsSurface PropertiesCholesterolIon ChannelsLipid BilayersOxygenPhospholipids

Identifiers

PMID22207480
PMCPMC3288876
OpenAlexW2069978151

What OpenQuestion holds

Textmetadata
LicenceTDM
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.