Protective immunity of single and multi-antigen DNA vaccines against schistosomiasis
Autor(a) principal: | |
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Data de Publicação: | 2002 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Memórias do Instituto Oswaldo Cruz |
Texto Completo: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762002000900021 |
Resumo: | We evaluated the usefulness of the combination of three plasmids encoding tegumental (pECL and pSM14) and muscular (pIRV5) antigens of the Schistosoma mansoni on improving the protective immunity over the use of a single antigen as DNA vaccines. Female BALB/c mice were inoculated twice with 25 µg DNA plasmid within two weeks interval. The challenge was performed with 80 cercarias of a regional isolate of S. mansoni (SLM) one week after the last immunization. Six weeks after challenge, all mice were perfused for worm load determination. The following groups were analyzed: saline; empty vector; monovalent formulations of pECL; pSM14 and pIRV5 and also double combinations of pECL/pIRV5 and pIRV5/pSM14 and a triple combination of pECL/pIRV5/pSM14. The protection was expressed as a percentage of worm loads in each group compared with the saline group. The results obtained were 41% (p < 0.05); 52% (p < 0.05); 51% (p < 0.05); 48% (p < 0.05); 55% (p < 0.05); 45% (p < 0.05); 65% (p < 0.05) for each group respectively. |
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Memórias do Instituto Oswaldo Cruz |
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Protective immunity of single and multi-antigen DNA vaccines against schistosomiasisnaked-DNADNA-vaccineschistosomiasisSchistosomamultivalentSM14IrV5ECLWe evaluated the usefulness of the combination of three plasmids encoding tegumental (pECL and pSM14) and muscular (pIRV5) antigens of the Schistosoma mansoni on improving the protective immunity over the use of a single antigen as DNA vaccines. Female BALB/c mice were inoculated twice with 25 µg DNA plasmid within two weeks interval. The challenge was performed with 80 cercarias of a regional isolate of S. mansoni (SLM) one week after the last immunization. Six weeks after challenge, all mice were perfused for worm load determination. The following groups were analyzed: saline; empty vector; monovalent formulations of pECL; pSM14 and pIRV5 and also double combinations of pECL/pIRV5 and pIRV5/pSM14 and a triple combination of pECL/pIRV5/pSM14. The protection was expressed as a percentage of worm loads in each group compared with the saline group. The results obtained were 41% (p < 0.05); 52% (p < 0.05); 51% (p < 0.05); 48% (p < 0.05); 55% (p < 0.05); 45% (p < 0.05); 65% (p < 0.05) for each group respectively.Instituto Oswaldo Cruz, Ministério da Saúde2002-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762002000900021Memórias do Instituto Oswaldo Cruz v.97 suppl.1 2002reponame:Memórias do Instituto Oswaldo Cruzinstname:Fundação Oswaldo Cruzinstacron:FIOCRUZ10.1590/S0074-02762002000900021info:eu-repo/semantics/openAccessNascimento,ELeão,ICPereira,VRAGomes,YMChikhlikar,PAugust,TMarques,ELucena-Silva,Neng2020-04-25T17:48:59Zhttp://www.scielo.br/oai/scielo-oai.php0074-02761678-8060opendoar:null2020-04-26 02:11:36.52Memórias do Instituto Oswaldo Cruz - Fundação Oswaldo Cruztrue |
dc.title.none.fl_str_mv |
Protective immunity of single and multi-antigen DNA vaccines against schistosomiasis |
title |
Protective immunity of single and multi-antigen DNA vaccines against schistosomiasis |
spellingShingle |
Protective immunity of single and multi-antigen DNA vaccines against schistosomiasis Nascimento,E naked-DNA DNA-vaccine schistosomiasis Schistosoma multivalent SM14 IrV5 ECL |
title_short |
Protective immunity of single and multi-antigen DNA vaccines against schistosomiasis |
title_full |
Protective immunity of single and multi-antigen DNA vaccines against schistosomiasis |
title_fullStr |
Protective immunity of single and multi-antigen DNA vaccines against schistosomiasis |
title_full_unstemmed |
Protective immunity of single and multi-antigen DNA vaccines against schistosomiasis |
title_sort |
Protective immunity of single and multi-antigen DNA vaccines against schistosomiasis |
author |
Nascimento,E |
author_facet |
Nascimento,E Leão,IC Pereira,VRA Gomes,YM Chikhlikar,P August,T Marques,E Lucena-Silva,N |
author_role |
author |
author2 |
Leão,IC Pereira,VRA Gomes,YM Chikhlikar,P August,T Marques,E Lucena-Silva,N |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Nascimento,E Leão,IC Pereira,VRA Gomes,YM Chikhlikar,P August,T Marques,E Lucena-Silva,N |
dc.subject.por.fl_str_mv |
naked-DNA DNA-vaccine schistosomiasis Schistosoma multivalent SM14 IrV5 ECL |
topic |
naked-DNA DNA-vaccine schistosomiasis Schistosoma multivalent SM14 IrV5 ECL |
dc.description.none.fl_txt_mv |
We evaluated the usefulness of the combination of three plasmids encoding tegumental (pECL and pSM14) and muscular (pIRV5) antigens of the Schistosoma mansoni on improving the protective immunity over the use of a single antigen as DNA vaccines. Female BALB/c mice were inoculated twice with 25 µg DNA plasmid within two weeks interval. The challenge was performed with 80 cercarias of a regional isolate of S. mansoni (SLM) one week after the last immunization. Six weeks after challenge, all mice were perfused for worm load determination. The following groups were analyzed: saline; empty vector; monovalent formulations of pECL; pSM14 and pIRV5 and also double combinations of pECL/pIRV5 and pIRV5/pSM14 and a triple combination of pECL/pIRV5/pSM14. The protection was expressed as a percentage of worm loads in each group compared with the saline group. The results obtained were 41% (p < 0.05); 52% (p < 0.05); 51% (p < 0.05); 48% (p < 0.05); 55% (p < 0.05); 45% (p < 0.05); 65% (p < 0.05) for each group respectively. |
description |
We evaluated the usefulness of the combination of three plasmids encoding tegumental (pECL and pSM14) and muscular (pIRV5) antigens of the Schistosoma mansoni on improving the protective immunity over the use of a single antigen as DNA vaccines. Female BALB/c mice were inoculated twice with 25 µg DNA plasmid within two weeks interval. The challenge was performed with 80 cercarias of a regional isolate of S. mansoni (SLM) one week after the last immunization. Six weeks after challenge, all mice were perfused for worm load determination. The following groups were analyzed: saline; empty vector; monovalent formulations of pECL; pSM14 and pIRV5 and also double combinations of pECL/pIRV5 and pIRV5/pSM14 and a triple combination of pECL/pIRV5/pSM14. The protection was expressed as a percentage of worm loads in each group compared with the saline group. The results obtained were 41% (p < 0.05); 52% (p < 0.05); 51% (p < 0.05); 48% (p < 0.05); 55% (p < 0.05); 45% (p < 0.05); 65% (p < 0.05) for each group respectively. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-10-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762002000900021 |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762002000900021 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0074-02762002000900021 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto Oswaldo Cruz, Ministério da Saúde |
publisher.none.fl_str_mv |
Instituto Oswaldo Cruz, Ministério da Saúde |
dc.source.none.fl_str_mv |
Memórias do Instituto Oswaldo Cruz v.97 suppl.1 2002 reponame:Memórias do Instituto Oswaldo Cruz instname:Fundação Oswaldo Cruz instacron:FIOCRUZ |
reponame_str |
Memórias do Instituto Oswaldo Cruz |
collection |
Memórias do Instituto Oswaldo Cruz |
instname_str |
Fundação Oswaldo Cruz |
instacron_str |
FIOCRUZ |
institution |
FIOCRUZ |
repository.name.fl_str_mv |
Memórias do Instituto Oswaldo Cruz - Fundação Oswaldo Cruz |
repository.mail.fl_str_mv |
|
_version_ |
1669937688079237120 |