Cutting edge: recombinant Listeria monocytogenes expressing a single immune-dominant peptide confers protective immunity to herpes simplex virus-1 infection

MT Orr, NN Orgun, CB Wilson… - The Journal of Immunology, 2007 - journals.aai.org
MT Orr, NN Orgun, CB Wilson, SS Way
The Journal of Immunology, 2007journals.aai.org
The vast majority of the world's population is infected with HSV. Although antiviral therapy
can reduce the incidence of reactivation and asymptomatic viral shedding, and limit
morbidity and mortality from active disease, it cannot cure infection. Therefore, the
development of an effective vaccine is an important global health priority. In this study, we
demonstrate that recombinant Listeria monocytogenes (Lm) expressing the H-2K b
glycoprotein B (gB) 498–505 peptide from HSV-1 triggers a robust CD8 T cell response to …
Abstract
The vast majority of the world’s population is infected with HSV. Although antiviral therapy can reduce the incidence of reactivation and asymptomatic viral shedding, and limit morbidity and mortality from active disease, it cannot cure infection. Therefore, the development of an effective vaccine is an important global health priority. In this study, we demonstrate that recombinant Listeria monocytogenes (Lm) expressing the H-2K b glycoprotein B (gB) 498–505 peptide from HSV-1 triggers a robust CD8 T cell response to this Ag resulting in protective immunity to HSV infection. Following challenge with HSV-1, immune-competent mice primed with recombinant Lm-expressing gB 498–505 Ag were protected from HSV-induced paralysis. Protection was associated with dramatic reductions in recoverable virus, and early expansion of HSV-1-specific CD8 T cells in the regional lymph nodes. Thus, recombinant Lm-expressing Ag from HSV represents a promising new class of vaccines against HSV infection.
journals.aai.org