Evidence map›Paper›PMID 31596095›Full record

ArticleMolecular pharmaceutics2019

Molecular Engineering of Adeno-Associated Virus Capsid Improves Its Therapeutic Gene Transfer in Murine Models of Hemophilia and Retinal Degeneration.

Bertin Mary, Shubham Maurya, Mohit Kumar, Sridhar Bammidi, Vikas Kumar, Giridhara R Jayandharan

Open access · hybridAbstract read
In one paragraph

Article in Molecular pharmaceutics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.6field-weighted citation impact, top 15% 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

19 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Glycosylation of recombinant adeno-associated virus serotype 6.Molecular therapy. Methods & clinical development · 2024
    Article
  10. Article
  11. Review
  12. Review
  13. Review
  14. Gene Therapy Approaches for the Treatment of Hemophilia B.International journal of molecular sciences · 2023
    Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. 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

6 authors at 2 institutions in 2 countries.

Bertin MaryDepartment of Biological Sciences and Bioengineering , Indian Institute of Technology Kanpur , Kanpur 208 016 , Uttar Pradesh , India.
Shubham MauryaDepartment of Biological Sciences and Bioengineering , Indian Institute of Technology Kanpur , Kanpur 208 016 , Uttar Pradesh , India.
Mohit KumarDepartment of Biological Sciences and Bioengineering , Indian Institute of Technology Kanpur , Kanpur 208 016 , Uttar Pradesh , India.
Sridhar BammidiDepartment of Biological Sciences and Bioengineering , Indian Institute of Technology Kanpur , Kanpur 208 016 , Uttar Pradesh , India.
Vikas KumarMass Spectrometry and Proteomics Core Facility , University of Nebraska Medical Center , Omaha 68198 , Nebraska , United States.
Giridhara R JayandharanDepartment of Biological Sciences and Bioengineering , Indian Institute of Technology Kanpur , Kanpur 208 016 , Uttar Pradesh , India.ORCID 0000-0001-9353-9053
Indian Institute of Technology Kanpur · INUniversity of Nebraska Medical Center · US

Funding

DBT-Wellcome Trust India Alliance IA/S/16/1/502355
6 · The paper itself

Abstract

Recombinant adeno-associated virus (AAV)-based gene therapy has been promising, but several host-related transduction or immune challenges remain. For this mode of therapy to be widely applicable, it is crucial to develop high transduction and permeating vectors that infect the target at significantly low doses. Because glycosylation of capsid proteins is known to be rate limiting in the life cycle of many viruses, we reasoned that perturbation of glycosylation sites in AAV2 capsid will enhance gene delivery. In our first set experiments, pharmacological modulation of the glycosylation status in host cells, modestly decreased (1-fold) AAV2 packaging efficacy while it improved their gene expression (∼74%) in vitro. We then generated 24 mutant AAV2 vectors modified to potentially create or disrupt a glycosylation site in its capsid. Three of them demonstrated a 1.3-2.5-fold increase in transgene expression in multiple cell lines (HeLa, Huh7, and ARPE-19). Hepatic gene transfer of these vectors in hemophilia B mice, resulted in a 2-fold increase in human coagulation factor (F)IX levels, while its T/B-cell immunogenic response was unaltered. Subsequently, intravitreal gene transfer of glycosylation site-modified vectors in C57BL6/J mice demonstrated an increase in green fluorescence protein expression (∼2- to 4-fold) and enhanced permeation across retina. Subretinal administration of these modified vectors containing RPE65 gene further rescued the photoreceptor response in a murine model of Leber congenital amarousis. Our studies highlight the translational potential of glycosylation site-modified AAV2 vectors for hepatic and ocular gene therapy applications.

Indexed as

AnimalsCapsidCapsid ProteinsCell LineCell Line, TumorDependovirusDisease Models, AnimalGene ExpressionGenetic TherapyGenetic VectorsGene Transfer TechniquesGreen Fluorescent ProteinsHeLa CellsHemophilia AHumansLiverCapsid ProteinsGreen Fluorescent ProteinsAAV2glycosylationhemophilia BLeber congenital amaurosis

Identifiers

PMID31596095
PMCPMC7035104
OpenAlexW2980080762

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.