Evidence map›Paper›PMID 33658343›Full record

ArticleJournal of virology2021

Effects of Altering HSPG Binding and Capsid Hydrophilicity on Retinal Transduction by AAV.

Sean M Crosson, Antonette Bennett, Diego Fajardo, James J Peterson, Hangning Zhang, Wei Li, Matthew T Leahy, Colin K Jennings, Ryan F Boyd, Sanford L Boye and 2 more

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 20% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. Pooled it
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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

12 authors at 2 institutions in 1 country.

Sean M CrossonDepartment of Pediatrics, Division of Cellular and Molecular Therapy, University of Florida, Gainesville, FL, USA.
Antonette BennettDepartment of Biochemistry and Molecular Biology, University of Florida, Gainesville, FL, USA.
Diego FajardoDepartment of Pediatrics, Division of Cellular and Molecular Therapy, University of Florida, Gainesville, FL, USA.
James J PetersonDepartment of Pediatrics, Division of Cellular and Molecular Therapy, University of Florida, Gainesville, FL, USA.
Hangning ZhangDepartment of Pediatrics, Division of Cellular and Molecular Therapy, University of Florida, Gainesville, FL, USA.
Wei LiDepartment of Pediatrics, Division of Cellular and Molecular Therapy, University of Florida, Gainesville, FL, USA.
Matthew T LeahyOphthalmology Services, Charles River Laboratories, Mattawan, MI, USA.
Colin K JenningsOphthalmology Services, Charles River Laboratories, Mattawan, MI, USA.
Ryan F BoydOphthalmology Services, Charles River Laboratories, Mattawan, MI, USA.
Sanford L BoyeDepartment of Pediatrics, Powell Gene Therapy Center, University of Florida, Gainesville, FL, USA.
Mavis Agbandge-McKennaDepartment of Biochemistry and Molecular Biology, University of Florida, Gainesville, FL, USA.
Shannon E BoyeDepartment of Pediatrics, Division of Cellular and Molecular Therapy, University of Florida, Gainesville, FL, USA shaire@ufl.edu.
University of Florida · USCharles River Laboratories (United States) · US

Funding

Engineering AAV for safe and efficient gene delivery to the human retinaR01EY024280 · NEI · UNIVERSITY OF FLORIDA · PI Shannon Elizabeth Boye · 2014 to 2026
$7.5M
Therapy development for open-angle glaucomasR01EY025752 · NEI · MICHIGAN STATE UNIVERSITY · PI KOMAROMY, ANDRAS · 2017 to 2021
$3.2M
NEI NIH HHS R01 EY024280NEI NIH HHS R01 EY025752
6 · The paper itself

Abstract

Adeno-associated viruses (AAVs) have recently emerged as the leading vector for retinal gene therapy. However, AAV vectors which are capable of achieving clinically relevant levels of transgene expression and widespread retinal transduction are still an unmet need. Using rationally designed AAV2-based capsid variants, we investigate the role of capsid hydrophilicity and hydrophobicity as it relates to retinal transduction. We show that hydrophilic, single amino acid (aa) mutations (V387R, W502H, E530K, L583R) in AAV2 negatively impact retinal transduction when heparan sulfate proteoglycan (HSPG) binding remains intact. Conversely, addition of hydrophobic point mutations to an HSPG binding deficient capsid (AAV2ΔHS) lead to increased retinal transduction in both mouse and macaque. Our top performing vector, AAV2(4pMut)ΔHS, achieved robust rod and cone photoreceptor (PR) transduction in macaque, especially in the fovea, and demonstrates the ability to spread laterally beyond the borders of the subretinal injection (SRI) bleb. This study both evaluates biophysical properties of AAV capsids that influence retinal transduction, and assesses the transduction and tropism of a novel capsid variant in a clinically relevant animal model.

Identifiers

PMID33658343
PMCPMC8139652
OpenAlexW3133743237

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.