Overcoming drug-resistant herpes simplex virus (HSV) infection by a humanized antibody.
Proc Natl Acad Sci U S A
; 110(17): 6760-5, 2013 Apr 23.
Article
em En
| MEDLINE
| ID: mdl-23569258
ABSTRACT
Despite the availability of antiviral chemotherapy, herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2) infections remain a severe global health problem. Of particular concern is the growing incidence of drug resistance in immunocompromised patients, which stresses the urgency to develop new effective treatment alternatives. We have developed a humanized monoclonal antibody (mAb hu2c) that completely abrogates viral cell-to-cell spread, a key mechanism by which HSV-1/2 escapes humoral immune surveillance. Moreover, mAb hu2c neutralized HSV fully independent of complement and/or immune effector cell recruitment in a highly efficient manner. Prophylactic and therapeutic administration of mAb hu2c completely prevented infection-related mortality of severely immunodeficient mice being challenged with a lethal dose of HSV-1. The high neutralization capacity of mAb hu2c was fully maintained toward clinical HSV isolates being multiresistant to standard antiviral drugs, and infection was fully resolved in 7/8 nonobese diabetic/SCID mice being infected with a multidrug resistant HSV-1 patient isolate. Immunohistochemical studies revealed no significant cross-reactivity of the antibody toward human tissues. These features warrant further clinical development of mAb hu2c as an immunotherapeutic compound for the management of severe and particularly drug-resistant HSV infections.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Simplexvirus
/
Herpes Simples
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Anticorpos Monoclonais
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Anticorpos Antivirais
Limite:
Animals
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article