| Autor: |
Saunders KO, Wang L, Joyce MG, Yang ZY, Balazs AB, Cheng C, Ko SY, Kong WP, Rudicell RS, Georgiev IS, Duan L, Foulds KE, Donaldson M, Xu L, Schmidt SD, Todd JP, Baltimore D, Roederer M, Haase AT, Kwong PD, Rao SS, Mascola JR, Nabel GJ |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of virology [J Virol] 2015 Aug; Vol. 89 (16), pp. 8334-45. |
| DOI: |
10.1128/JVI.00908-15 |
| Abstrakt: |
Broadly neutralizing antibodies (bnAbs) can prevent lentiviral infection in nonhuman primates and may slow the spread of human immunodeficiency virus type 1 (HIV-1). Although protection by passive transfer of human bnAbs has been demonstrated in monkeys, durable expression is essential for its broader use in humans. Gene-based expression of bnAbs provides a potential solution to this problem, although immune responses to the viral vector or to the antibody may limit its durability and efficacy. Here, we delivered an adeno-associated viral vector encoding a simianized form of a CD4bs bnAb, VRC07, and evaluated its immunogenicity and protective efficacy. The expressed antibody circulated in macaques for 16 weeks at levels up to 66 g/ml, although immune suppression with cyclosporine (CsA) was needed to sustain expression. Gene-delivered simian VRC07 protected against simian-human immunodeficiency virus (SHIV) infection in monkeys 5.5 weeks after treatment. Gene transfer of an anti-HIV antibody can therefore protect against infection by viruses that cause AIDS in primates when the host immune responses are controlled. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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