| Literature DB >> 24652496 |
Sita Awasthi1, Robert B Belshe2, Harvey M Friedman1.
Abstract
The Herpevac Trial evaluated a herpes simplex virus type 2 (HSV-2) glycoprotein D (gD2) subunit vaccine to prevent genital herpes. Unexpectedly, the vaccine protected against genital HSV-1 infection but not genital HSV-2 infection. We evaluated sera from 30 women seronegative for HSV-1 and HSV-2 who were immunized with gD2 in the Herpevac Trial. Neutralizing antibody titers to HSV-1 were 3.5-fold higher than those to HSV-2 (P < .001). HSV-2 gC2 and gE2 on the virus blocked neutralization by gD2 antibody, while HSV-1 gC1 and gE1 did not block neutralization by gD2 antibody. The higher neutralizing antibody titers to HSV-1 offer an explanation for the Herpevac results, and shielding neutralizing domains provides a potential mechanism.Entities:
Keywords: HSV-1; HSV-2; Herpevac Trial; glycoprotein C; glycoprotein D; glycoprotein E; neutralizing antibody; vaccine
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Year: 2014 PMID: 24652496 PMCID: PMC4172040 DOI: 10.1093/infdis/jiu177
Source DB: PubMed Journal: J Infect Dis ISSN: 0022-1899 Impact factor: 5.226