Cited by 74Cystic Fibrosis Research AdvancesVirus-based gene therapy researchRNA Interference and Gene Delivery

rAAV-CFTRΔR Rescues the Cystic Fibrosis Phenotype in Human Intestinal Organoids and Cystic Fibrosis Mice

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Vidović, Dragana, Carlon, Marianne S., da Cunha, Mélanie F., Dekkers, Johanna F., Hollenhorst, Monika I., Bijvelds, Marcel J. C., Ramalho, Anabela S., Van den Haute, Chris +10 more·2016·American Journal of Respiratory and Critical Care Medicine

Abstract

Rationale: Gene therapy holds promise for a curative mutation-independent treatment applicable to all patients with cystic fibrosis (CF). The various viral vector–based clinical trials conducted in the past have demonstrated safety and tolerance of different vectors, but none have led to a clear and persistent clinical benefit. Recent clinical breakthroughs in recombinant adeno-associated viral vector (rAAV)-based gene therapy encouraged us to reexplore an rAAV approach for CF. Objectives: We evaluated the preclinical potential of rAAV gene therapy for CF to restore chloride and fluid secretion in two complementary models: intestinal organoids derived from subjects with CF and a CF mouse model, an important milestone toward the development of a clinical rAAV candidate for CF gene therapy. Methods: We engineered an rAAV vector containing a truncated CF transmembrane conductance regulator (CFTRΔR) combined with a short promoter (CMV173) to ensure optimal gene expression. A rescue in chloride and fluid secretion after rAAV-CFTRΔR treatment was assessed by forskolin-induced swelling in CF transmembrane conductance regulator (CFTR)-deficient organoids and by nasal potential differences in ΔF508 mice. Measurements and Main Results: rAAV-CFTRΔR transduction of human CFTR-deficient organoids resulted in forskolin-induced swelling, indicating a restoration of CFTR function. Nasal potential differences demonstrated a clear response to low chloride and forskolin perfusion in most rAAV-CFTRΔR-treated CF mice. Conclusions: Our study provides robust evidence that rAAV-mediated gene transfer of a truncated CFTR functionally rescues the CF phenotype across the nasal mucosa of CF mice and in patient-derived organoids. These results underscore the clinical potential of rAAV-CFTRΔR in offering a cure for all patients with CF in the future.

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  • Viral and non-viral vectors have proven valid to deliver the CFTR cDNA in cell and animal models of CF.

    “Viral and non-viral vectors have proven valid to deliver the CFTR cDNA in cell and animal models of CF8,10.”

    From Allele specific repair of splicing mutations in cystic fibrosis through AsCas12a genome editing (2019) · cites this paper as [8]

    The Discussion (p. 7) reports that viral rAAV delivery of truncated CFTR improved channel activity in human intestinal organoids and CF mice, supporting the cell- and animal-model part of the claim. It discusses nonviral liposome delivery of CFTR cDNA in patients, not in those models; the paper's own vector also carries a truncated CFTR sequence rather than full-length CFTR cDNA. (LLM, conf=0.87)

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  1. [9]9. Moss RB, Milla C, Colombo J, Accurso F, Zeitlin PL, Clancy JP, Spencer LT, Pilewski J, Waltz DA, Dorkin HL, et al . Repeated aerosolized AAVCFTR for treatment of cystic fi brosis: a randomized placebocontrolled phase 2B trial. Hum Gene Ther 2007;18:726 -732.
  2. [21]21. Vidovic D, Carlon M, da Cunha MF, Dekkers J, Hollenhorst M, Bijvelds M, Van den Haute C, Baekelandt V, de Jonge H, Beekman J, et al . rAAV2/5 encoding truncated CFTR corrects CF phenotype in mouse nasal epithelium [abstract]. Hum Gene Ther 2014;25: A115 -A116.
  3. [22]22. Vidovic D, Carlon M, Faria da Cunha M, Dekkers J, Hollenhorst M, Bijvelds M, Van den Haute C, Baekelandt V, de Jonge H, SermetGaudelus I, et al . rAAV2/5 encoding truncated CFTR rescues CF phenotype in D F508 mouse model [abstract]. Presented at the 12th ECFS Basic Science Conference. March 25 -28, 2015, Algarve, Portugal. Poster 15.

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Authors
Vidović, D., Carlon, M. S., da Cunha, M. F., Dekkers, J. F., Hollenhorst, M. I., Bijvelds, M. J. C., Ramalho, A. S., Van den Haute, C., Ferrante, M., Baekelandt, V., Janssens, H. M., De Boeck, K., Sermet-Gaudelus, I., de Jonge, H. R., Gijsbers, R., Beekman, J. M., Edelman, A., & Debyser, Z.
Affiliations
  • Molecular Virology and Gene Therapy
  • INSERM U1151, University Paris Descartes, Faculté de Médecine Necker Enfants-Malades, Paris, France
  • University Medical Center Utrecht (NL)
  • Inserm (FR)
  • Erasmus MC (NL)
  • Stem Cell Biology and Embryology
  • Neurobiology and Gene Therapy
  • KU Leuven (BE)
  • University Hospital Leuven, Flanders, Belgium
  • Department of Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, the Netherlands
Corresponding author
Debyser, Zeger
Venue
American Journal of Respiratory and Critical Care Medicine
Published
2016-02-01
Volume
193
Issue
3
Pages
288-298
ISSN
  • 1073-449X (ISSN-L)
  • 1535-4970
OpenAlex
W1851407914
Cited by
74
References
68
Citations by year
2026: 3 · 2025: 10 · 2024: 6 · 2023: 6 · 2022: 11 · 2021: 5 · 2020: 4 · 2019: 8 · 2018: 3 · 2017: 8 · 2016: 10
FWCI
5.54
Type
journal article
Language
en
Open access
Locations
  • American Journal of Respiratory and Critical Care Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (publishedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (submittedVersion)
  • Lirias (submittedVersion)
  • Utrecht University Repository (Utrecht University) (submittedVersion, other-oa)
Funders
KU Leuven (DBOF/10/062)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Cystic Fibrosis Research Advances
  • 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
Keywords
cystic fibrosis, recombinant adeno-associated virus, CFTR gene therapy, intestinal organoids, chloride secretion, fluid secretion, nasal potential difference, nasal mucosa
MeSH terms
Dependovirus, Animals, Body Fluids, Chlorides, Cystic Fibrosis, Disease Models, Animal, Colforsin, Genetic Vectors, Genotype, HeLa Cells, Humans, Intestines, Organoids, Transduction, Genetic, Genetic Therapy, Gene Transfer Techniques, Chloride Channels, Mice

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