Evidence map›Paper›PMID 17331500›Full record

ArticleExperimental eye research2007

Regulation of VEGF mRNA expression and protein secretion by TGF-beta2 in human retinal pigment epithelial cells.

Zong-Mei Bian, Susan G Elner, Victor M Elner

Open access · greenAbstract read
In one paragraph

Article in Experimental eye research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

46 citing papers in PubMed, 97 citations in OpenAlex.

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  7. TGF-β Signaling Pathways in the Development of Diabetic Retinopathy.International journal of molecular sciences · 2024
    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

3 authors at 1 institution in 1 country.

Zong-Mei BianDepartment of Ophthalmology, University of Michigan, Ann Arbor, MI 48105, USA.
Susan G Elner
Victor M Elner
University of Michigan–Ann Arbor · US

Funding

VIVARIUM MODULEP30EY007003 · NEI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI David Antonetti · 1987 to 2026
$17.6M
RPE-Mphi Binding: Ca++_&O2-_Dependent AMD ResponsesR01EY009441 · NEI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI ELNER, VICTOR M · 1992 to 2008
$3.2M
E75 IN THE DEVELOPING DROSOPHILA EYEF31EY007003 · NEI · YALE UNIVERSITY · PI SHILTON, ALYCIA N · 1999 to 2001
$14k
NEI NIH HHS EY007003NEI NIH HHS EY-09441NEI NIH HHS F31 EY007003NEI NIH HHS P30 EY007003NEI NIH HHS R01 EY009441
6 · The paper itself

Abstract

VEGF secretion by the human retinal pigment epithelium (hRPE) plays an important role in retinal and choroidal neovascularization. In this study, transforming growth factor-beta2 (TGF-beta2)-induced vascular endothelial growth factor (VEGF) gene expression was investigated in hRPE cells. Treatment of hRPE cells with TGF-beta2 for 24 and 48h as compared to 8h resulted in markedly increased VEGF secretion by fivefold and nine-fold, respectively. Induced VEGF mRNA peaked within 3h of stimulation and remained above the basal at 36h. Stimulation of VEGF expression by TGF-beta2 was blocked by cycloheximide, suggesting that de novo protein synthesis is required. Induced VEGF production was strongly inhibited by anti-inflammatory agents, dexamethasone and cyclosporin A. Despite of the weak stimulation of VEGF expression by TNF-alpha or bFGF alone, co-administration of either of these two cytokines synergized the effect of TGF-beta2 on VEGF mRNA expression and protein production. Quantitative RT-PCR revealed that the synergy was predominantly at the level of VEGF transcription. Moreover, TGF-beta2-induced RPE VEGF secretion was significantly reduced by inhibitors of mitogen-activated protein (MAP) kinase (MEK) (U0126), p38 (SB202190), c-Jun NH2-terminal kinase (JNK), Sp600125, protein tyrosine kinase (PTK) (Genistein), and phosphatidylinositol 3-kinase (PI3K) (Ly294002). Induced VEGF expression was completely abrogated by inhibitors of protein kinase C (PKC) (Ro318220), nuclear factor-kappaB (NF-kappaB) [caffeic acid phenethyl ester (CAPE)], and reactive oxygen species (ROS) [N-acetyl-cysteine (Nac) and diphenyleneiodonium (DPI)]. These results suggest that MEK, p38, JNK, PI3K, and NF-kappaB as well as multiple essential signaling intermediates, including PKC, PTK and ROS, are involved in hRPE VEGF up regulation by TGF-beta2.

Indexed as

Anti-Inflammatory AgentsBlotting, WesternCells, CulturedCyclosporineDexamethasoneDrug SynergismEpithelial CellsFibroblast Growth Factor 2Gene Expression RegulationHumansImmunosuppressive AgentsPigment Epithelium of EyeRecombinant ProteinsRNA, MessengerSignal TransductionTransforming Growth Factor beta2Anti-Inflammatory AgentsCyclosporineDexamethasoneFibroblast Growth Factor 2Immunosuppressive AgentsRecombinant ProteinsRNA, MessengerTransforming Growth Factor beta2Tumor Necrosis Factor-alphaVascular Endothelial Growth Factor AVEGFA protein, human

Identifiers

PMID17331500
PMCPMC2094015
OpenAlexW1988981981

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.