Cited by 191Virus-based gene therapy researchRNA Interference and Gene DeliveryGlycosylation and Glycoproteins Research

The AAV9 receptor and its modification to improve in vivo lung gene transfer in mice

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Bell, Christie L., Vandenberghe, Luk H., Bell, Peter, Limberis, Maria P., Gao, Guang-Ping, Van Vliet, Kim, Agbandje-McKenna, Mavis, Wilson, James M.·2011·Journal of Clinical Investigation

Abstract

Vectors based on adeno-associated virus (AAV) serotype 9 are candidates for in vivo gene delivery to many organs, but the receptor(s) mediating these tropisms have yet to be defined. We evaluated AAV9 uptake by glycans with terminal sialic acids (SAs), a common mode of cellular entry for viruses. We found, however, that AAV9 binding increased when terminal SA was enzymatically removed, suggesting that galactose, which is the most commonly observed penultimate monosaccharide to SA, may mediate AAV9 transduction. This was confirmed in mutant CHO Pro-5 cells deficient in the enzymes involved in glycoprotein biogenesis, as well as lectin interference studies. Binding of AAV9 to glycans with terminal galactose was demonstrated via glycan binding assays. Co-instillation of AAV9 vector with neuraminidase into mouse lung resulted in exposure of terminal galactose on the apical surface of conducting airway epithelial cells, as shown by lectin binding and increased transduction of these cells, demonstrating the possible utility of this vector in lung-directed gene transfer. Increasing the abundance of the receptor on target cells and improving vector efficacy may improve delivery of AAV vectors to their therapeutic targets.

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  • AAV9 binds to terminal galactose and shows efficient transduction in CNS, eye, cardiac and skeletal muscle, and liver.

    “Another validated vector with broad tropism is AAV9, binding to terminal galactose and showing efficient transduction in CNS, eye, cardiac and skeletal muscle, and liver [50–53].”

    From Designing and optimizing AAV-mediated gene therapy for neurodegenerative diseases: from bench to bedside (2024) · cites this paper as [51]

    The Discussion identifies terminal β-galactose linkages as mediating AAV9 binding, and the Results report efficient liver transduction and efficient cardiac and skeletal muscle transduction at higher doses. The Results describe CNS transduction after intravenous injection as detectable, and the Discussion calls neuronal transduction limited—not efficient. The passages do not establish efficient eye transduction by AAV9. (LLM, conf=0.88)

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  1. Foust KD, Nurre E, Montgomery CL, Hernandez A, Chan CM, Kaspar BK. Intravascular AAV9 prefer- entially targets neonatal neurons and adult astro- cytes. Nat Biotechnol. 2009;27(1):59-65.
  2. Marth JD. O-Glycans. In: Varki A, Cummings R, Esko J, Freeze H, Hart G, Marth J, eds. Essentials of Glyco- biology. Cold Spring Harbor, New York, USA: Cold Spring Harbor Laboratory Press; 1999:101-113.

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Authors
Bell, C. L., Vandenberghe, L. H., Bell, P., Limberis, M. P., Gao, G.-P., Van Vliet, K., Agbandje-McKenna, M., & Wilson, J. M.
Affiliations
University of Pennsylvania (US)
Corresponding author
Wilson, James M.
Venue
Journal of Clinical Investigation
Published
2011-06-01
Volume
121
Issue
6
Pages
2427-2435
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2166540858
Cited by
190
References
40
Citations by year
2026: 10 · 2025: 11 · 2024: 9 · 2023: 14 · 2022: 13 · 2021: 10 · 2020: 13 · 2019: 11 · 2018: 13 · 2017: 5 · 2016: 8 · 2015: 12 · 2014: 18 · 2013: 19 · 2012: 20
FWCI
11.97
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (NIH T32, NIH-R01, GM62116, DK047757)
  • National Heart, Lung, and Blood Institute (P01HL059412, P01HL059407)
  • National Institute of General Medical Sciences (GM082946, GM 62116, U54GM062116, R01GM082946)
  • National Institute of Diabetes and Digestive and Kidney Diseases (T32DK007748, P30DK047757)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Glycosylation and Glycoproteins Research
Keywords
AAV9, sialic acid, galactose, glycan binding, neuraminidase, airway epithelial cells, in vivo gene delivery, lectin binding
MeSH terms
Dependovirus, Animals, Capsid, Cricetulus, Galactose, Genetic Vectors, Glycosylation, Cricetinae, Lung, Male, Membrane Glycoproteins, Mice, Inbred C57BL, Neuraminidase, Polysaccharides, Protein Binding, Receptors, Virus, Transduction, Genetic, Genetic Therapy, CHO Cells, Drug Delivery Systems, Mice

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