title: Expression of the herpes simplex virus type 1 glycoprotein E in human cells and in Escherichia coli: protection studies against lethal viral infection in mice.
abstract: The objective of this study was to examine the protective efficacy of purified recombinant herpes simplex virus type 1 (HSV-1) glycoprotein E (gE-1) in the mouse lethal challenge model. A secreted form of gE-1 (hgE-1s) protein, containing amino acids 1-406, was produced in human cells by using the episomal replicating pRP-RSV expression vector. In addition, a portion of the gE-1 (bgE-1t) protein corresponding to amino acids 90-406, was expressed in Escherichia coli as a fusion protein with maltose binding protein using the pMAL-c2 expression vector. Mice vaccinated with hgE-1s developed high serum titres of HSV-1-neutralizing antibodies and were significantly protected from intraperitoneal lethal HSV-1 challenge, whereas mice vaccinated with bgE-1t exhibited only moderate levels of protective immunity. These results demonstrate that the expression of gE-1 in human cells has a strong impact on its protective efficacy and that most importantly the hgE-1s protein could be of values as a component of an HSV multi-subunit vaccine.
authors.affiliation: Molecular Virology Laboratory, Hellenic Pasteur Institute, Athens, Greece.
authors.forename: V
authors.initials: V
authors.lastname: Miriagou
authors.forename: R
authors.initials: R
authors.lastname: Argnani
authors.forename: A
authors.initials: A
authors.lastname: Kakkanas
authors.forename: U
authors.initials: U
authors.lastname: Georgopoulou
authors.forename: R
authors.initials: R
authors.lastname: Manservigi
authors.forename: P
authors.initials: P
authors.lastname: Mavromara
mesh_terms: D018528:ATP-Binding Cassette Transporters; D000818:Animals; D000914:Antibodies, Viral / Q000097:blood; D001358:Avian Sarcoma Viruses / Q000235:genetics; D002352:Carrier Proteins / Q000235:genetics; D002460:Cell Line; D004926:Escherichia coli / Q000235:genetics; D029968:Escherichia coli Proteins; D005260:Female; D005822:Genetic Vectors / Q000235:genetics; D006561:Herpes Simplex / Q000517:prevention & control*; D018259:Herpesvirus 1, Human / Q000276:immunology*; D006801:Humans; D058619:Maltose-Binding Proteins; D051379:Mice; D008807:Mice, Inbred BALB C; D009004:Monosaccharide Transport Proteins; D009500:Neutralization Tests; D011993:Recombinant Fusion Proteins / Q000096:biosynthesis / Q000276:immunology; D014611:Vaccination; D014614:Vaccines, Synthetic / Q000235:genetics / Q000276:immunology; D014759:Viral Envelope Proteins / Q000096:biosynthesis / Q000235:genetics / Q000276:immunology* / Q000378:metabolism; D014765:Viral Vaccines / Q000235:genetics / Q000276:immunology*
chemical_list: D018528:ATP-Binding Cassette Transporters; D000914:Antibodies, Viral; D002352:Carrier Proteins; D029968:Escherichia coli Proteins; D058619:Maltose-Binding Proteins; D009004:Monosaccharide Transport Proteins; D011993:Recombinant Fusion Proteins; D014614:Vaccines, Synthetic; D014759:Viral Envelope Proteins; D014765:Viral Vaccines; C044768:glycoprotein E, herpes simplex virus type 1; C461599:maltose transport system, E coli