Evidence map›Paper›PMID 29234687›Full record

ArticleMolecular therapy. Methods & clinical development2018

Delivery of CR2-fH Using AAV Vector Therapy as Treatment Strategy in the Mouse Model of Choroidal Neovascularization.

Gloriane Schnabolk, Nathaniel Parsons, Elisabeth Obert, Balasubramaniam Annamalai, Cecile Nasarre, Stephen Tomlinson, Alfred S Lewin, Bärbel Rohrer

Open access · goldAbstract read
In one paragraph

Article in Molecular therapy. Methods & clinical development, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

28 citing papers in PubMed, 36 citations in OpenAlex.

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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

8 authors at 3 institutions in 1 country.

Gloriane SchnabolkDepartment of Ophthalmology, Medical University of South Carolina, Charleston, SC 29425, USA.
Nathaniel ParsonsDepartment of Ophthalmology, Medical University of South Carolina, Charleston, SC 29425, USA.
Elisabeth ObertDepartment of Ophthalmology, Medical University of South Carolina, Charleston, SC 29425, USA.
Balasubramaniam AnnamalaiDepartment of Ophthalmology, Medical University of South Carolina, Charleston, SC 29425, USA.
Cecile NasarreDepartment of Ophthalmology, Medical University of South Carolina, Charleston, SC 29425, USA.
Stephen TomlinsonDepartment of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC 29425, USA.
Alfred S LewinDepartment of Molecular Genetics and Microbiology, University of Florida, Gainesville FL 32611, USA.
Bärbel RohrerDepartment of Ophthalmology, Medical University of South Carolina, Charleston, SC 29425, USA.
Medical University of South Carolina · USRalph H. Johnson VA Medical Center · USUniversity of Florida · US

Funding

Vision Research CoreP30EY021721 · NEI · UNIVERSITY OF FLORIDA · PI HAUSWIRTH, WILLIAM W · 2011 to 2015
$2.8M
Testing Gene Therapy in Models of Geographic AtrophyR01EY026268 · NEI · UNIVERSITY OF FLORIDA · PI LEWIN, ALFRED S · 2016 to 2020
$2.6M
Alternative Pathway of Complement Activation in Age-Related Macular DegenerationR01EY019320 · NEI · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI ROHRER, BAERBEL · 2010 to 2014
$2.1M
MUSC FACIL EXPANSION &RENOV: SLE C06RR015455 · NCRR · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI CROUCH, ROSALIE K · 2002 to 2002
$2.0M
Antibodies and complement in ischemia reperfusion injury and regenerationR01DK102912 · NIDDK · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI TOMLINSON, STEPHEN · 2015 to 2018
$1.7M
ECT Implants for Factor H Delivery in Models of AMDR01EY024581 · NEI · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI ROHRER, BAERBEL · 2014 to 2016
$1.1M
RPE Cell Bystander Effects Contribute to AMD PathologyI01BX003050 · VA · RALPH H JOHNSON VA MEDICAL CENTER · PI ROHRER, BAERBEL · 2016 to 2024
–
Complement Factor H Haplotypes and Smoking in Age-Related Macular DegenerationI01RX000444 · VA · RALPH H JOHNSON VA MEDICAL CENTER · PI Baerbel Rohrer · 2011 to 2026
–
Targeting complement and chronic inflammation after traumatic brain injuryI21RX002363 · VA · RALPH H JOHNSON VA MEDICAL CENTER · PI TOMLINSON, STEPHEN · 2016 to 2018
–
Novel Therapies to Improve Functional Recovery After StrokeI01RX001141 · VA · RALPH H JOHNSON VA MEDICAL CENTER · PI TOMLINSON, STEPHEN · 2014 to 2022
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BLRD VA I01 BX003050NCRR NIH HHS C06 RR015455NEI NIH HHS P30 EY021721NEI NIH HHS R01 EY019320NEI NIH HHS R01 EY024581NEI NIH HHS R01 EY026268NIDDK NIH HHS R01 DK102912RRD VA I01 RX000444RRD VA I01 RX001141RRD VA I21 RX002363
6 · The paper itself

Abstract

Complement activation plays a significant role in age-related macular degeneration (AMD) pathogenesis, and polymorphisms interfering with factor H (fH) function, a complement alternative pathway (AP) inhibitor, are associated with increased AMD risk. We have previously validated an AP inhibitor, a fusion protein consisting of a complement receptor 2 fragment linked to the inhibitory domain of fH (CR2-fH) as an efficacious treatment for choroidal neovascularization (CNV) when delivered intravenously. Here we tested an alternative approach of AAV-mediated delivery (AAV5-VMD2-CR2-fH or AAV5-VMD2-mCherry) using subretinal delivery in C57BL/6J mice. Secretion of CR2-fH was confirmed in polarized retinal pigment epithelium (RPE) cells. A safe concentration of AAV5-VMD2-CR2-fH was identified using electroretinography, optical coherence tomography (OCT), RPE morphology, and antibody profiling. One month after gene delivery, CNV was induced using argon laser photocoagulation. OCT assessment demonstrated reduced CNV with AAV5-VMD2-CR2-fH administration. Bioavailability studies revealed that gene-therapy delivered similar levels of CR2-fH to the RPE/choroid as treatment by intravenous injections, and C3a ELISA verified reduced CNV-associated ocular C3a production. These results contribute to existing data illustrating the importance of the AP of complement in CNV development and its potential role in AMD treatment. Demonstration of AAV-vector efficacy opens new avenues for the development of treatment strategies.

Indexed as

AAVage-related macular degenerationchoroidal neovascularizationcomplement factor Hretinal pigment epithelium

Identifiers

PMID29234687
PMCPMC5723362
OpenAlexW2770518620

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

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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.