Targeting ON-bipolar cells by AAV gene therapy stably reverses LRIT3-congenital stationary night blindness.
Proc Natl Acad Sci U S A
; 119(13): e2117038119, 2022 03 29.
Article
in En
| MEDLINE
| ID: mdl-35316139
ABSTRACT
SignificanceCanine models of inherited retinal diseases have helped advance adeno-associated virus (AAV)-based gene therapies targeting specific cells in the outer retina for treating blinding diseases in patients. However, therapeutic targeting of diseases such as congenital stationary night blindness (CSNB) that exhibit defects in ON-bipolar cells (ON-BCs) of the midretina remains underdeveloped. Using a leucine-rich repeat, immunoglobulin-like and transmembrane domain 3 (LRIT3) mutant canine model of CSNB exhibiting ON-BC dysfunction, we tested the ability of cell-specific AAV capsids and promotors to specifically target ON-BCs for gene delivery. Subretinal injection of one vector demonstrated safety and efficacy with robust and stable rescue of electroretinography signals and night vision up to 1 y, paving the way for clinical trials in patients.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Night Blindness
/
Genetic Diseases, X-Linked
Limits:
Animals
/
Humans
Language:
En
Journal:
Proc Natl Acad Sci U S A
Year:
2022
Document type:
Article