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- W1985997817 abstract "We previously demonstrated that a new lentiviral vector derived from nonpathogenic simian immunodeficiency virus (SIVagm) was efficient and safe for long-lasting retinal gene transfer, and that it provided the significant therapeutic effect of expressing human pigment epithelium-derived factor (hPEDF) in Royal College of Surgeons (RCS) rats. In the present study, to obtain a more pronounced outcome, we assessed the potential synergistic effect of the simultaneous gene transfer of hPEDF and human fibroblast growth factor-2 (hFGF-2) by improved third-generation SIV on RCS rats and retinal degeneration slow (rds) mice, because the former targets the primary neurons, including photoreceptor cells (PCs), whereas the latter is effective for targeting secondary neural cells, including Muller cells.Vector solution (SIV-hPEDF, SIV-hFGF-2, a 1 : 1 mixture of SIV-hPEDF and SIV-hFGF-2, or SIV-enhanced green fluorescent protein) was injected into the peripheral subretinal space of 3-week-old RCS rats or rds mice. Histopathological and electroretinographic assessments were made at several points after gene transfer.Administration of SIV-hPEDF or SIV-hFGF-2 significantly delayed the histological PC degeneration and electrical deficit in RCS rats, and these delays were synergistically and significantly pronounced by SIV-hPEDF + SIV-hFGF-2 (1 : 1 mixture). In rds mice, functional therapeutic effects were observed even by SIV-PEDF, or SIV-FGF-2 alone and, moreover, both SIV-PEDF and SIV-FGF-2 showed higher therapeutic effects.These synergistic rescues of retinitis pigmentosa (RP) model animals are the 'proof concept' that the 'dual' expression of hPEDF and hFGF-2 dramatically improved therapeutic efficacy by keeping lower titers. This strategy may contribute to safer and more effective gene therapy for RP." @default.
- W1985997817 created "2016-06-24" @default.
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- W1985997817 date "2008-12-01" @default.
- W1985997817 modified "2023-10-16" @default.
- W1985997817 title "Synergistic neuroprotective effect via simian lentiviral vector-mediated simultaneous gene transfer of human pigment epithelium-derived factor and human fibroblast growth factor-2 in rodent models of retinitis pigmentosa" @default.
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- W1985997817 doi "https://doi.org/10.1002/jgm.1257" @default.
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