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Mol Ther Methods Clin Dev. 2018 Nov 20;13:1-13. doi: 10.1016/j.omtm.2018.11.003. eCollection 2019 Jun 14.

Gene Transfer with AAV9-PHP.B Rescues Hearing in a Mouse Model of Usher Syndrome 3A and Transduces Hair Cells in a Non-human Primate.

Molecular therapy. Methods & clinical development

Bence György, Elise J Meijer, Maryna V Ivanchenko, Kelly Tenneson, Frederick Emond, Killian S Hanlon, Artur A Indzhykulian, Adrienn Volak, K Domenica Karavitaki, Panos I Tamvakologos, Mark Vezina, Vladimir K Berezovskii, Richard T Born, Maureen O'Brien, Jean-François Lafond, Yvan Arsenijevic, Margaret A Kenna, Casey A Maguire, David P Corey

Affiliations

  1. Department of Neurobiology, Harvard Medical School, Boston, MA 02115, USA.
  2. Molecular Neurogenetics Unit, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02114, USA.
  3. Charles River Laboratories, Senneville, QC, Canada.
  4. Department of Otolaryngology, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA 02114, USA.
  5. Charles River Laboratories, Frederick, MD 21701, USA.
  6. Unit of Retinal Degeneration and Regeneration, Department of Ophthalmology, University of Lausanne, Jules-Gonin Eye Hospital, Lausanne, Switzerland.
  7. Department of Otolaryngology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA.

PMID: 30581889 PMCID: PMC6297893 DOI: 10.1016/j.omtm.2018.11.003

Abstract

Hereditary hearing loss often results from mutation of genes expressed by cochlear hair cells. Gene addition using AAV vectors has shown some efficacy in mouse models, but clinical application requires two additional advances. First, new AAV capsids must mediate efficient transgene expression in both inner and outer hair cells of the cochlea. Second, to have the best chance of clinical translation, these new vectors must also transduce hair cells in non-human primates. Here, we show that an AAV9 capsid variant, PHP.B, produces efficient transgene expression of a GFP reporter in both inner and outer hair cells of neonatal mice. We show also that AAV9-PHP.B mediates almost complete transduction of inner and outer HCs in a non-human primate. In a mouse model of Usher syndrome type 3A deafness (gene

Keywords: AAV; adeno-associated virus vector; cochlea; gene delivery; hair cells; hereditary deafness; inner ear; non-human primate

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