Evidence map›Paper›PMID 21850166›Full record

ArticleMolecular vision2011

Comparison of the antiangiogenic activity of modified RGDRGD-endostatin to endostatin delivered by gene transfer in vivo rabbit neovascularization model.

Hong-Yan Ge, Nan Xiao, Xiu-Li Yin, Song-Bin Fu, Jin-Ying Ge, Yan Shi, Ping Liu

Open access · greenAbstract readComparative Study
In one paragraph

Article in Molecular vision, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.4field-weighted citation impact, top 37% 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

7 citing papers in PubMed, 12 citations in OpenAlex.

  1. Review
  2. Management Strategies of Ocular Chemical Burns: Current Perspectives.Clinical ophthalmology (Auckland, N.Z.) · 2020
    Review
  3. Article
  4. Non-viral therapeutic approaches to ocular diseases: An overview and future directions.Journal of controlled release : official journal of the Controlled Release Society · 2015
    Review
  5. Anti-neovascular effect of chondrocyte-derived extracellular matrix on corneal alkaline burns in rabbits.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2014
    Article
  6. Strategies for local gene therapy of corneal allograft rejection.Middle East African journal of ophthalmology
    Review
  7. 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

7 authors at 1 institution in 1 country.

Hong-Yan GeKey Laboratory of Harbin Medical University Eye Center, Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, P.R. China.
Nan Xiao
Xiu-Li Yin
Song-Bin Fu
Jin-Ying Ge
Yan Shi
Ping Liu
Harbin Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeEndostatin plays an important role in inhibiting corneal neovascularization (CNV). The aim of this study was to evaluate the antiangiogenic activities of lipid-mediated subconjunctival injection of the modified RGDRGD (arginine- glycin- aspartic- arginine- glycin- aspartic- endostatin gene in a rabbit model of neovascularization in vivo.

methodsA modified human endostatin gene containing an RGDRGD motif was obtained by rapid site-directed mutagenesis. Forty New Zealand white rabbits underwent alkaline burn and developed CNV, which were randomly divided into four groups: an experimental control group, a PCI empty vector group, a PCI-endostatin group, and a PCI-RGDRGD-endostatin group. The vector, endostatin, and RGDRGD-endostatin groups received injections into the superior bulbar conjunctiva after the burn. An injection of 5 μg was given twice at 1-week intervals. Four eyes of two rabbits received neither treatment nor alkaline burn and served as absolute normal controls. The areas of CNV were monitored after 7 and 14 days. Corneas were examined by histology, and VEGF (vascular endothelial growth factor) and CD31 (platelet endothelial cell adhesion molecule-1) expression was detected by immunohistochemistry after 7 and 14 days. Retina, liver, and kidney were examined by histology, and CD38 expression in the inflammatory cells was detected by immunohistochemistry at 90 days.

resultsSubconjunctival injection of both native endostatin and modified RGDRGD-endostatin genes resulted in a significant suppression of CNV in vivo, with modified RGDRGD-endostatin being more effective than native endostatin. The mean concentration of VEGF in the PCI-RGDRGD-endostatin group significantly decreased compared to the means in the other groups. Upon histological examination, the endostatin-treated and RGDRGD-endostatin-treated eyes showed significantly less neovascular area and fewer vessels than the control and vector-injected groups. Retinal, hepatic, and renal tissue sections were normal, and there was no inflammatory cell infiltration observed.

conclusionsNative and modified endostatin can significantly inhibit CNV by suppressing the expression of VEGF. However, modified endostatin with the RGDRGD motif is far more effective than the endostatin gene in antiangiogenic activity.

Indexed as

Gene Transfer TechniquesAngiogenesis InhibitorsAnimalsBase SequenceCorneaCorneal NeovascularizationDisease Models, AnimalEndostatinsFemaleGenetic VectorsHumansImmunohistochemistryInjections, IntraocularMolecular Sequence DataMutagenesis, Site-DirectedPlatelet Endothelial Cell Adhesion Molecule-1Angiogenesis InhibitorsEndostatinsPlatelet Endothelial Cell Adhesion Molecule-1Vascular Endothelial Growth Factor A

Identifiers

PMID21850166
PMCPMC3154123
OpenAlexW2095955144

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.