Evidence map›Paper›PMID 23942974›Full record

ArticleInvestigative ophthalmology & visual science2013

Modulation of angiogenesis by genetic manipulation of ATF4 in mouse model of oxygen-induced retinopathy [corrected].

Xiaoqin Wang, Guibo Wang, Mansi Kunte, Vishal Shinde, Marina Gorbatyuk

Erratum issuedOpen access · greenAbstract readComparative Study
In one paragraph

Article in Investigative ophthalmology & visual science, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.0field-weighted citation impact, top 28% 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. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Diabetic Retinopathy: From Animal Models to Cellular Signaling.International journal of molecular sciences · 2022
    Review
  9. Article
  10. Article
  11. Review
  12. Neurodegeneration: Keeping ATF4 on a Tight Leash.Frontiers in cellular neuroscience · 2017
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Xiaoqin WangDepartment of Cell Biology and Anatomy, University of North Texas Health Science Center, North Texas Eye Research Institute, Fort Worth, Texas, USA.
Guibo Wang
Mansi Kunte
Vishal Shinde
Marina Gorbatyuk
University of North Texas Health Science Center · USUniversity of Alabama at Birmingham · US

Funding

Unfolded Protein Response as a Therapeutic Target for ADRP Animal ModelsR01EY020905 · NEI · UNIVERSITY OF NORTH TEXAS HLTH SCI CTR · PI GORBATYUK, MARINA · 2010 to 2014
$1.3M
NEI NIH HHS R01 EY020905NEI NIH HHS R01EY020905
6 · The paper itself

Abstract

purposeThe activation of the unfolded protein response (UPR) and an increase in activating transcription factor 4 (ATF4) has been previously reported in the diabetic retina. Despite this, a direct link between ATF4 and the degree of proliferative retinopathy has not been demonstrated to date. Therefore, the objective of this study was to determine whether ATF4 deficiency could reduce neovascularization in mice with oxygen-induced retinopathy (OIR).

methodsWe induced OIR in C57BL/6, ATF4(+/-), and endoplasmic reticulum stress-activated indicator (ERAI) mice and used quantitative RT-PCR and Western blot analysis to evaluate relative gene and protein expression. Histology and microscopy were used to calculate the extent of neovascularization in flat-mounted retinas.

resultsExperimental data revealed Xbp1 splicing in the retinal ganglia cells, outer plexiform layer, inner nuclear layer, and outer nuclear layer and in pericytes of postdevelopment day 17 ERAI OIR mice, confirming the activation of IRE1 UPR signaling. In naive ATF4-deficient mice, we also observed an elevation in UPR-associated and vascular-associated gene expression (Bip, Atf6, Hif1a, Pik3/Akt, Flt1/Vegfa, and Tgfb1), which may have contributed to the alleviation of hypoxia-driven neovascularization in experimental ATF4(+/-) retinas. The OIR ATF4(+/-) retinas demonstrated reprogramming of the UPR seen at both the mRNA (Atf6 and Bip) and protein (pATF6 and peIf2α) levels, as well as a reduction in vascularization-associated gene expression (Flt1, Vegf1, Hif1, and Tgb1). These changes corresponded to the decline in the rate of neovascularization.

conclusionsOur study validates ATF4 as a prospective therapeutic target to inhibit neovascularization in proliferative retinopathy.

Indexed as

Gene Expression RegulationGenetic TechniquesActivating Transcription Factor 4AnimalsBlotting, WesternDisease Models, AnimalEndoplasmic Reticulum StressGenotypeImmunohistochemistryMiceMice, Inbred C57BLMice, TransgenicOxygenProspective StudiesRetinal NeovascularizationReverse Transcriptase Polymerase Chain ReactionActivating Transcription Factor 4OxygenRNA, MessengerTranscription FactorsVascular Endothelial Growth Factor Aactivating transcription factor 4angiogenesisoxygen-induced retinopathyunfolded protein responsevascular endothelial growth factor

Identifiers

PMID23942974
PMCPMC3762331
OpenAlexW46706185

What OpenQuestion holds

Textmetadata
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.