Retinal transduction profiles by high-capacity viral vectors.
Gene Ther
; 21(10): 855-65, 2014 Oct.
Article
em En
| MEDLINE
| ID: mdl-24989814
ABSTRACT
Retinal gene therapy with adeno-associated viral (AAV) vectors is safe and effective in humans. However, the limited cargo capacity of AAV prevents their use for therapy of those inherited retinopathies (IRs) due to mutations in large (>5 kb) genes. Viral vectors derived from adenovirus (Ad), lentivirus (LV) and herpes virus (HV) can package large DNA sequences, but do not target efficiently retinal photoreceptors (PRs) where the majority of genes responsible for IRs are expressed. Here, we have evaluated the mouse retinal transduction profiles of vectors derived from 16 different Ad serotypes, 7 LV pseudotypes and from a bovine HV. Most of the vectors tested transduced efficiently the retinal pigment epithelium. We found that LV-GP64 tends to transduce more PRs than the canonical LV-VSVG, albeit this was restricted to a narrow region. We observed more extensive PR transduction with HdAd1, 2 and 5/F35++ than with LV, although none of them outperformed the canonical HdAd5 or matched the extension of PR transduction achieved with AAV2/8.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Dependovirus
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Lentivirus
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Herpesvirus Bovino 4
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Epitélio Pigmentado da Retina
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article