A chimaeric plant virus vaccine protects mice against a bacterial infection

1 Axis Genetics plc, Babraham, Cambridge CB2 4AZ, UK 2 Department of Microbiology and Immunology, Louisiana State University Medical Center, School of Medicine in Shreveport, Shreveport, LA 71130-3932, USA Author for correspondence: William D. O. Hamilton. Tel: +44 1223 837611. Fax: +44 1223 837604....

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Veröffentlicht in:Microbiology (Society for General Microbiology) 1999-08, Vol.145 (8), p.2061-2067
Hauptverfasser: Brennan, Frank R, Gilleland, Linda B, Staczek, John, Bendig, Mary M, Hamilton, William D. O, Gilleland, Harry E., Jr
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container_end_page 2067
container_issue 8
container_start_page 2061
container_title Microbiology (Society for General Microbiology)
container_volume 145
creator Brennan, Frank R
Gilleland, Linda B
Staczek, John
Bendig, Mary M
Hamilton, William D. O
Gilleland, Harry E., Jr
description 1 Axis Genetics plc, Babraham, Cambridge CB2 4AZ, UK 2 Department of Microbiology and Immunology, Louisiana State University Medical Center, School of Medicine in Shreveport, Shreveport, LA 71130-3932, USA Author for correspondence: William D. O. Hamilton. Tel: +44 1223 837611. Fax: +44 1223 837604. e-mail: hamiltonw@axisgenetics.co.uk ABSTRACT The plant virus cowpea mosaic virus (CPMV) is an efficient carrier of foreign peptides for the generation of strong humoral immune responses. Peptides derived from both viruses and bacteria are strongly immunogenic when displayed on the surface of CPMV and elicit high titres of peptide-specific antibody. However, the protective effects of antibodies generated using bacterial epitopes in this system have yet to be demonstrated. In this study the ability of chimaeric virus particles (CVPs) to afford protection against bacterial infection was assessed. Immunization of outbred mice with CPMV expressing a peptide derived from outer-membrane protein F of Pseudomonas aeruginosa (CPMV-PAE5) generated high titres of P. aeruginosa -specific IgG that opsonized the bacteria for phagocytosis by human neutrophils and afforded protection upon challenge with two different immunotypes of P. aeruginosa in a model of chronic pulmonary infection. When examined 8 d after challenge, CVP-immunized mice had fewer severe lung lesions and fewer bacteria in their lungs compared to mice immunized with wild-type virus. Different levels of protection were seen with CPMV-PAE5 when Freund's or alum adjuvants were used. These studies highlight the ability of CVPs to generate protective immunity against infectious disease agents. Keywords: cowpea mosaic virus, chimaeric virus particle, Pseudomonas aeruginosa , outer-membrane protein F, vaccine Abbreviations: CF, cystic fibrosis; CPMV, cowpea mosaic virus; CVP, chimaeric virus particle; FCA, Freund's complete adjuvant; FD, Fisher-Devlin; FIA, Freund's incomplete adjuvant; KLH, keyhole limpet haemocyanin; NMS, normal mouse serum; OM, outer membrane; PMN, polymorphonuclear leucocyte; wt, wild-type.
doi_str_mv 10.1099/13500872-145-8-2061
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O ; Gilleland, Harry E., Jr</creator><creatorcontrib>Brennan, Frank R ; Gilleland, Linda B ; Staczek, John ; Bendig, Mary M ; Hamilton, William D. O ; Gilleland, Harry E., Jr</creatorcontrib><description>1 Axis Genetics plc, Babraham, Cambridge CB2 4AZ, UK 2 Department of Microbiology and Immunology, Louisiana State University Medical Center, School of Medicine in Shreveport, Shreveport, LA 71130-3932, USA Author for correspondence: William D. O. Hamilton. Tel: +44 1223 837611. Fax: +44 1223 837604. e-mail: hamiltonw@axisgenetics.co.uk ABSTRACT The plant virus cowpea mosaic virus (CPMV) is an efficient carrier of foreign peptides for the generation of strong humoral immune responses. Peptides derived from both viruses and bacteria are strongly immunogenic when displayed on the surface of CPMV and elicit high titres of peptide-specific antibody. However, the protective effects of antibodies generated using bacterial epitopes in this system have yet to be demonstrated. In this study the ability of chimaeric virus particles (CVPs) to afford protection against bacterial infection was assessed. Immunization of outbred mice with CPMV expressing a peptide derived from outer-membrane protein F of Pseudomonas aeruginosa (CPMV-PAE5) generated high titres of P. aeruginosa -specific IgG that opsonized the bacteria for phagocytosis by human neutrophils and afforded protection upon challenge with two different immunotypes of P. aeruginosa in a model of chronic pulmonary infection. When examined 8 d after challenge, CVP-immunized mice had fewer severe lung lesions and fewer bacteria in their lungs compared to mice immunized with wild-type virus. Different levels of protection were seen with CPMV-PAE5 when Freund's or alum adjuvants were used. These studies highlight the ability of CVPs to generate protective immunity against infectious disease agents. Keywords: cowpea mosaic virus, chimaeric virus particle, Pseudomonas aeruginosa , outer-membrane protein F, vaccine Abbreviations: CF, cystic fibrosis; CPMV, cowpea mosaic virus; CVP, chimaeric virus particle; FCA, Freund's complete adjuvant; FD, Fisher-Devlin; FIA, Freund's incomplete adjuvant; KLH, keyhole limpet haemocyanin; NMS, normal mouse serum; OM, outer membrane; PMN, polymorphonuclear leucocyte; wt, wild-type.</description><identifier>ISSN: 1350-0872</identifier><identifier>EISSN: 1465-2080</identifier><identifier>DOI: 10.1099/13500872-145-8-2061</identifier><identifier>PMID: 10463172</identifier><language>eng</language><publisher>Reading: Soc General Microbiol</publisher><subject>alum ; Animals ; Antibodies, Bacterial - blood ; Antibody Specificity ; Bacterial Outer Membrane Proteins - chemistry ; Bacterial Vaccines - administration &amp; dosage ; Bacterial Vaccines - immunology ; Bacteriology ; Biological and medical sciences ; Comovirus - genetics ; Comovirus - immunology ; Cowpea mosaic virus ; Female ; Fundamental and applied biological sciences. 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O</creatorcontrib><creatorcontrib>Gilleland, Harry E., Jr</creatorcontrib><title>A chimaeric plant virus vaccine protects mice against a bacterial infection</title><title>Microbiology (Society for General Microbiology)</title><addtitle>Microbiology</addtitle><description>1 Axis Genetics plc, Babraham, Cambridge CB2 4AZ, UK 2 Department of Microbiology and Immunology, Louisiana State University Medical Center, School of Medicine in Shreveport, Shreveport, LA 71130-3932, USA Author for correspondence: William D. O. Hamilton. Tel: +44 1223 837611. Fax: +44 1223 837604. e-mail: hamiltonw@axisgenetics.co.uk ABSTRACT The plant virus cowpea mosaic virus (CPMV) is an efficient carrier of foreign peptides for the generation of strong humoral immune responses. Peptides derived from both viruses and bacteria are strongly immunogenic when displayed on the surface of CPMV and elicit high titres of peptide-specific antibody. However, the protective effects of antibodies generated using bacterial epitopes in this system have yet to be demonstrated. In this study the ability of chimaeric virus particles (CVPs) to afford protection against bacterial infection was assessed. Immunization of outbred mice with CPMV expressing a peptide derived from outer-membrane protein F of Pseudomonas aeruginosa (CPMV-PAE5) generated high titres of P. aeruginosa -specific IgG that opsonized the bacteria for phagocytosis by human neutrophils and afforded protection upon challenge with two different immunotypes of P. aeruginosa in a model of chronic pulmonary infection. When examined 8 d after challenge, CVP-immunized mice had fewer severe lung lesions and fewer bacteria in their lungs compared to mice immunized with wild-type virus. Different levels of protection were seen with CPMV-PAE5 when Freund's or alum adjuvants were used. These studies highlight the ability of CVPs to generate protective immunity against infectious disease agents. Keywords: cowpea mosaic virus, chimaeric virus particle, Pseudomonas aeruginosa , outer-membrane protein F, vaccine Abbreviations: CF, cystic fibrosis; CPMV, cowpea mosaic virus; CVP, chimaeric virus particle; FCA, Freund's complete adjuvant; FD, Fisher-Devlin; FIA, Freund's incomplete adjuvant; KLH, keyhole limpet haemocyanin; NMS, normal mouse serum; OM, outer membrane; PMN, polymorphonuclear leucocyte; wt, wild-type.</description><subject>alum</subject><subject>Animals</subject><subject>Antibodies, Bacterial - blood</subject><subject>Antibody Specificity</subject><subject>Bacterial Outer Membrane Proteins - chemistry</subject><subject>Bacterial Vaccines - administration &amp; dosage</subject><subject>Bacterial Vaccines - immunology</subject><subject>Bacteriology</subject><subject>Biological and medical sciences</subject><subject>Comovirus - genetics</subject><subject>Comovirus - immunology</subject><subject>Cowpea mosaic virus</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. 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O</au><au>Gilleland, Harry E., Jr</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A chimaeric plant virus vaccine protects mice against a bacterial infection</atitle><jtitle>Microbiology (Society for General Microbiology)</jtitle><addtitle>Microbiology</addtitle><date>1999-08-01</date><risdate>1999</risdate><volume>145</volume><issue>8</issue><spage>2061</spage><epage>2067</epage><pages>2061-2067</pages><issn>1350-0872</issn><eissn>1465-2080</eissn><abstract>1 Axis Genetics plc, Babraham, Cambridge CB2 4AZ, UK 2 Department of Microbiology and Immunology, Louisiana State University Medical Center, School of Medicine in Shreveport, Shreveport, LA 71130-3932, USA Author for correspondence: William D. O. Hamilton. Tel: +44 1223 837611. Fax: +44 1223 837604. e-mail: hamiltonw@axisgenetics.co.uk ABSTRACT The plant virus cowpea mosaic virus (CPMV) is an efficient carrier of foreign peptides for the generation of strong humoral immune responses. Peptides derived from both viruses and bacteria are strongly immunogenic when displayed on the surface of CPMV and elicit high titres of peptide-specific antibody. However, the protective effects of antibodies generated using bacterial epitopes in this system have yet to be demonstrated. In this study the ability of chimaeric virus particles (CVPs) to afford protection against bacterial infection was assessed. Immunization of outbred mice with CPMV expressing a peptide derived from outer-membrane protein F of Pseudomonas aeruginosa (CPMV-PAE5) generated high titres of P. aeruginosa -specific IgG that opsonized the bacteria for phagocytosis by human neutrophils and afforded protection upon challenge with two different immunotypes of P. aeruginosa in a model of chronic pulmonary infection. When examined 8 d after challenge, CVP-immunized mice had fewer severe lung lesions and fewer bacteria in their lungs compared to mice immunized with wild-type virus. Different levels of protection were seen with CPMV-PAE5 when Freund's or alum adjuvants were used. These studies highlight the ability of CVPs to generate protective immunity against infectious disease agents. Keywords: cowpea mosaic virus, chimaeric virus particle, Pseudomonas aeruginosa , outer-membrane protein F, vaccine Abbreviations: CF, cystic fibrosis; CPMV, cowpea mosaic virus; CVP, chimaeric virus particle; FCA, Freund's complete adjuvant; FD, Fisher-Devlin; FIA, Freund's incomplete adjuvant; KLH, keyhole limpet haemocyanin; NMS, normal mouse serum; OM, outer membrane; PMN, polymorphonuclear leucocyte; wt, wild-type.</abstract><cop>Reading</cop><pub>Soc General Microbiol</pub><pmid>10463172</pmid><doi>10.1099/13500872-145-8-2061</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record>
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ispartof Microbiology (Society for General Microbiology), 1999-08, Vol.145 (8), p.2061-2067
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subjects alum
Animals
Antibodies, Bacterial - blood
Antibody Specificity
Bacterial Outer Membrane Proteins - chemistry
Bacterial Vaccines - administration & dosage
Bacterial Vaccines - immunology
Bacteriology
Biological and medical sciences
Comovirus - genetics
Comovirus - immunology
Cowpea mosaic virus
Female
Fundamental and applied biological sciences. Psychology
Humans
Lung - pathology
Lung Diseases - microbiology
Mice
Mice, Inbred ICR
Microbiology
Opsonin Proteins - immunology
Peptides - genetics
Peptides - immunology
Pseudomonas aeruginosa
Pseudomonas aeruginosa - chemistry
Pseudomonas aeruginosa - immunology
Pseudomonas Infections - prevention & control
Recombinant Fusion Proteins - administration & dosage
Recombinant Fusion Proteins - immunology
Vaccination
Vaccines, antisera, therapeutical immunoglobulins and monoclonal antibodies
Vaccines, Synthetic - immunology
title A chimaeric plant virus vaccine protects mice against a bacterial infection
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