Abstract:
:Hearing impairment is the most common sensory disorder, with congenital hearing impairment present in approximately 1 in 1,000 newborns. Hereditary deafness is often mediated by the improper development or degeneration of cochlear hair cells. Until now, it was not known whether such congenital failures could be mitigated by therapeutic intervention. Here we show that hearing and vestibular function can be rescued in a mouse model of human hereditary deafness. An antisense oligonucleotide (ASO) was used to correct defective pre-mRNA splicing of transcripts from the USH1C gene with the c.216G>A mutation, which causes human Usher syndrome, the leading genetic cause of combined deafness and blindness. Treatment of neonatal mice with a single systemic dose of ASO partially corrects Ush1c c.216G>A splicing, increases protein expression, improves stereocilia organization in the cochlea, and rescues cochlear hair cells, vestibular function and low-frequency hearing in mice. These effects were sustained for several months, providing evidence that congenital deafness can be effectively overcome by treatment early in development to correct gene expression and demonstrating the therapeutic potential of ASOs in the treatment of deafness.
journal_name
Nat Medjournal_title
Nature medicineauthors
Lentz JJ,Jodelka FM,Hinrich AJ,McCaffrey KE,Farris HE,Spalitta MJ,Bazan NG,Duelli DM,Rigo F,Hastings MLdoi
10.1038/nm.3106subject
Has Abstractpub_date
2013-03-01 00:00:00pages
345-50issue
3eissn
1078-8956issn
1546-170Xpii
nm.3106journal_volume
19pub_type
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