Evidence map›Paper›PMID 20360947›Full record

ArticleASN neuro2010

A single nucleotide polymorphism in the Bax gene promoter affects transcription and influences retinal ganglion cell death.

Sheila J Semaan, Yan Li, Robert W Nickells

Open access · goldAbstract readComparative Study
In one paragraph

Article in ASN neuro, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. The Role of microRNAs Related to Apoptosis forInternational journal of molecular sciences · 2024
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. The basic science of optic nerve regeneration.Annals of translational medicine · 2021
    Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Targeting HDAC3 Activity with RGFP966 Protects Against Retinal Ganglion Cell Nuclear Atrophy and Apoptosis After Optic Nerve Injury.Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics · 2018
    Article
  16. AAV2-Mediated Transduction of the Mouse Retina After Optic Nerve Injury.Investigative ophthalmology & visual science · 2017
    Article
  17. Article
  18. Article
  19. Review
  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

3 authors at 1 institution in 1 country.

Sheila J SemaanDepartment of Opthalmology and Visual Sciences, University of Wisconsin, School of Medicine and Public Health, 1300 University Avenue, Madison, WI 53706, U.S.A.
Yan Li
Robert W Nickells
University of Wisconsin–Madison · US

Funding

UW Vision Research Core - Administrative CoreP30EY016665 · NEI · UNIVERSITY OF WISCONSIN-MADISON · PI ROBERT W NICKELLS · 2005 to 2026
$12.6M
The molecular mechanism of retinal ganglion cell deathR01EY012223 · NEI · UNIVERSITY OF WISCONSIN-MADISON · PI NICKELLS, ROBERT W · 2005 to 2017
$6.3M
MOLECULAR MECHANISM OF RETINAL GANGLION CELL DEATHR29EY012223 · NEI · UNIVERSITY OF WISCONSIN MADISON · PI NICKELLS, ROBERT W · 1998 to 2002
$310k
NEI NIH HHS P30 EY016665NEI NIH HHS R01 EY012223NEI NIH HHS R29 EY012223
6 · The paper itself

Abstract

Pro-apoptotic Bax is essential for RGC (retinal ganglion cell) death. Gene dosage experiments in mice, yielding a single wild-type Bax allele, indicated that genetic background was able to influence the cell death phenotype. DBA/2J(Bax+/-) mice exhibited complete resistance to nerve damage after 2 weeks (similar to Bax(-/-) mice), but 129B6(Bax+/-) mice exhibited significant cell loss (similar to wild-type mice). The different cell death phenotype was associated with the level of Bax expression, where 129B6 neurons had twice the level of endogenous Bax mRNA and protein as DBA/2J neurons. Sequence analysis of the Bax promoters between these strains revealed a single nucleotide polymorphism (T(129B6) to C(DBA/2J)) at position -515. A 1.5- to 2.5-fold increase in transcriptional activity was observed from the 129B6 promoter in transient transfection assays in a variety of cell types, including RGC5 cells derived from rat RGCs. Since this polymorphism occurred in a p53 half-site, we investigated the requirement of p53 for the differential transcriptional activity. Differential transcriptional activity from either 129B6 or DBA/2J Bax promoters were unaffected in p53(-/-) cells, and addition of exogenous p53 had no further effect on this difference, thus a role for p53 was excluded. Competitive electrophoretic mobility-shift assays identified two DNA-protein complexes that interacted with the polymorphic region. Those forming Complex 1 bound with higher affinity to the 129B6 polymorphic site, suggesting that these proteins probably comprised a transcriptional activator complex. These studies implicated quantitative expression of the Bax gene as playing a possible role in neuronal susceptibility to damaging stimuli.

Indexed as

Animalsbcl-2-Associated X ProteinCell DeathCells, CulturedGenetic Predisposition to DiseaseMiceMice, 129 StrainMice, Inbred C57BLMice, Inbred DBAMice, KnockoutNIH 3T3 CellsPolymorphism, Single NucleotidePromoter Regions, GeneticProtein BindingRetinal Ganglion CellsTranscription, GeneticBax protein, mousebcl-2-Associated X ProteinBaxC/EBP, CCAAT/enhancer-binding proteinDMEM, Dulbecco’s modified Eagle’s mediumEMSA, electrophoretic mobility-shift assayFBS, fetal bovine serumFOXI1, Forkhead box I1gene expressionglaucomaLuc, luciferaseneuronal apoptosisONC, optic nerve crushretinal ganglion cellsRGC, retinal ganglion cellsusceptibility alleleβgal, β-galactosidase

Identifiers

PMID20360947
PMCPMC2847828
OpenAlexW2005966461

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.