Evidence map›Paper›PMID 24184030›Full record

ReviewExperimental eye research2013

Smad3 is necessary for transforming growth factor-beta2 induced ocular hypertension in mice.

Colleen M McDowell, Holly E Tebow, Robert J Wordinger, Abbot F Clark

Open access · greenAbstract readReview
In one paragraph

Review in Experimental eye research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

50 citing papers in PubMed, 78 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. The Inducible TGFβ2 Ocular Hypertension Mouse Model.Methods in molecular biology (Clifton, N.J.) · 2025
    Article
  9. Article
  10. GSK3β Inhibitors Inhibit TGFβ Signaling in the Human Trabecular Meshwork.Investigative ophthalmology & visual science · 2024
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Viral Vector-Induced Ocular Hypertension in Mice.Methods in molecular biology (Clifton, N.J.) · 2023
    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

4 authors at 2 institutions in 1 country.

Colleen M McDowellNorth Texas Eye Research Institute, Department of Cell Biology and Anatomy, University of North Texas Health Science Center, CBH-441, 3500 Camp Bowie Blvd, Fort Worth, TX 76107, USA.
Holly E Tebow
Robert J Wordinger
Abbot F Clark
University of North Texas · USUniversity of North Texas Health Science Center · US

Funding

BMP Regulation of TGF-b2 in the Trabecular MeshworkR01EY017374 · NEI · UNIVERSITY OF NORTH TEXAS HLTH SCI CTR · PI WORDINGER, ROBERT J · 2008 to 2012
$2.2M
A New Model of Human Primary Open-Angle GlaucomaR21EY019977 · NEI · UNIVERSITY OF NORTH TEXAS HLTH SCI CTR · PI CLARK, ABBOT FREDERICK · 2010 to 2011
$392k
NEI NIH HHS R01 EY017374NEI NIH HHS R21 EY019977
6 · The paper itself

Abstract

TGFβ2 induces extracellular matrix (ECM) remodeling and alters the cytoskeleton by both the canonical Smad and non-canonical signaling pathways. TGFβ2 regulates the expression of ECM proteins in trabecular meshwork (TM) cells, increases intraocular pressure (IOP) in an ex vivo perfusion organ culture model, and induces ocular hypertension in rodent eyes. A necessary step in the canonical Smad signaling pathway is phosphorylation of receptor protein Smad3 by the TGF-β receptor complex. The purpose of this study was to determine whether TGFβ2 signals in vivo through the canonical Smad signaling pathway in the TM using Smad3 knockout (KO) mice. Ad5.hTGFβ2(226/228) (2.5 × 10(7) pfu) was injected intravitreally into one eye of homozygous (WT), heterozygous (HET), and homozygous (KO) 129-Smad3(tm1Par)/J mice (n = 9-10 mice/group), with the uninjected contralateral eye serving as the control. IOP measurements were taken using a rebound tonometer. To test the effect of TGFβ2 signaling on the ECM, fibronectin expression was determined by immunohistochemistry and qPCR analysis. Transduction of the TM with viral vector Ad5.hTGFβ2(226/228) caused a statistically significant difference in IOP exposure between Smad3 genotypes: WT, 187.7 ± 23.9 mmHg*day (n = 9); HET, 95.6 ± 24.5 mmHg*day (n = 9); KO, 52.8 ± 25.2 mmHg*day (n = 10); (p < 0.05 WT versus HET, p < 0.01 WT versus KO). Immunohistochemistry and qPCR analysis showed that Ad5.hTGFβ2(226/228) increased fibronectin expression in the TM of WT mice (2.23 ± 0.24 fold) compared to Smad3 KO mice (0.99 ± 0.19 fold), p < 0.05. These results demonstrate Smad3 is a necessary signaling protein for TGFβ2-induced ocular hypertension and fibronectin deposition in the TM.

Indexed as

Gene Expression RegulationAnimalsGenetic VectorsMiceOcular HypertensionReal-Time Polymerase Chain ReactionRNA, MessengerSignal TransductionSmad3 ProteinTrabecular MeshworkTransforming Growth Factor beta2RNA, MessengerSmad3 ProteinTransforming Growth Factor beta2glaucomamouse modelocular hypertensionTGFβ2 signalingtrabecular meshwork

Identifiers

PMID24184030
PMCPMC3895953
OpenAlexW2024048826

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.