Evidence map›Paper›PMID 24744606›Full record

ArticleMolecular vision2014

Endogenous hydrogen peroxide production in the epithelium of the developing embryonic lens.

Subhasree Basu, Suren Rajakaruna, Bryan C Dickinson, Christopher J Chang, A Sue Menko

Open access · greenAbstract read
In one paragraph

Article in Molecular vision, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

17 citing papers in PubMed, 25 citations in OpenAlex.

  1. EGCG Alleviates HFood science & nutrition · 2025
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  15. Selective Targeting of Heme Protein in Cytochrome P450 and Nitric Oxide Synthase by Diphenyleneiodonium.Toxicological sciences : an official journal of the Society of Toxicology · 2016
    Article
  16. Review
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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 1 country.

Subhasree BasuDepartment of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA.
Suren RajakarunaDepartment of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA.
Bryan C DickinsonDepartment of Chemistry and Chemical Biology, Harvard University, Cambridge, MA ; Department of Chemistry, University of California, Berkeley, CA.
Christopher J ChangDepartment of Chemistry, University of California, Berkeley, CA ; Department of Molecular and Cell Biology, University of California, Berkeley, CA ; Howard Hughes Medical Institute, University of California, Berkeley, CA.
A Sue MenkoDepartment of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA.
Thomas Jefferson University · US

Funding

Molecular Imaging Probes To Study Redox BiologyR01GM079465 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI Christopher J. Chang · 2006 to 2026
$7.8M
Univ of Calif Berkeley Chemistry-Biology Interface ProgramT32GM066698 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI CHANG, CHRISTOPHER J., FRANCIS, MATTHEW B · 2004 to 2023
$7.5M
FUNCTION OF ADHESION MOLECULES IN LENS DEVELOPMENTR01EY010577 · NEI · THOMAS JEFFERSON UNIVERSITY · PI MENKO, A. SUE · 1993 to 2011
$3.9M
Howard Hughes Medical InstituteNEI NIH HHS R01 EY010577NEI NIH HHS R01EY010577NIGMS NIH HHS R01 GM079465NIGMS NIH HHS R01GM79465NIGMS NIH HHS T32 GM066698
6 · The paper itself

Abstract

purposeHydrogen peroxide (H2O2) is an endogenously produced reactive oxygen species (ROS) present in a variety of mammalian systems. This particular ROS can play dichotomous roles, being beneficial in some cases and deleterious in others, which reflects the level and location of H2O2 production. While much is known about the redox regulation of ROS by antioxidant and repair systems in the lens, little is known about the endogenous production of H2O2 in embryonic lens tissue or the physiologic relevance of endogenous H2O2 to lens development. This gap in knowledge exists primarily from a lack of reagents that can specifically detect endogenous H2O2 in the intact lens. Here, using a recently developed chemoselective fluorescent boronate probe, peroxyfluor-6 acetoxymethyl ester (PF6-AM), which selectively detects H2O2 over related ROS, we examined the endogenous H2O2 signals in the embryonic lens.

methodsEmbryonic day 10 chick whole lenses in ex vivo organ culture and lens epithelial cells in primary culture were loaded with the H2O2 probe PF6-AM. To determine the relationship between localization of mitochondria with active membrane potential and the region of H2O2 production in the lens, cells were exposed to the mitochondrial probe MitoTracker Red CMXRos together with PF6-AM. Diphenyleneiodonium (DPI), a flavin inhibitor that blocks generation of intracellular ROS production, was used to confirm that the signal from PF6-AM was due to endogenous ROS production. All imaging was performed by live confocal microscopy.

resultsPF6-AM detected endogenous H2O2 in lens epithelial cells in whole lenses in ex vivo culture and in lens epithelial cells grown in primary culture. No endogenous H2O2 signal could be detected in differentiating lens fiber cells with this probe. Treatment with DPI markedly attenuated the fluorescence signal from the peroxide-specific probe PF6-AM in the lens epithelium, suggesting that basal generation of ROS occurs in this region. The lens epithelial cells producing an endogenous H2O2 signal were also rich in actively respiring mitochondria.

conclusionsPF6-AM can be used as an effective reagent to detect the presence and localization of endogenous H2O2 in live lens cells.

Indexed as

AnimalsCell RespirationChick EmbryoEpithelial CellsEpitheliumFluorescent DyesHydrogen PeroxideLens, CrystallineMitochondriaOnium CompoundsdiphenyleneiodoniumFluorescent DyesHydrogen PeroxideOnium Compounds

Identifiers

PMID24744606
PMCPMC3984042
OpenAlexW2100413674

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.