Detection of cytotoxic activity on Vero cells in clinical isolates of Serratia marcescens
Autor(a) principal: | |
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Data de Publicação: | 1997 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Medical and Biological Research |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997001100005 |
Resumo: | Cytotoxin production was studied in 60 Serratia marcescens strains isolated from hospitalized patients. Association of cytotoxic activity with serotype, source of isolation and presence of plasmids was also evaluated. Thirteen of the 60 S. marcescens strains produced a cytotoxic effect on Vero cells. These strains were isolated from distinct clinical sources and classified into seven different serotypes (O1:H7; O4:NM; O10:NT; O19:NM; O6,14:H4; O6,14:NM and O6,14:H1). No relationship was observed between cytotoxic activity and clinical source or serotypes of the strains. Plasmids from five cytotoxin-producing S. marcescens strains were transferred to E. coli K12/711. The transconjugants did not exhibit cytotoxicity, indicating that the cytotoxic effect is not plasmid-mediated among these strains. Although a cytotoxic activity was demonstrated in filtrates of some S. marcescens strains, further studies should be performed to assess the role of this toxin in pathogenesis |
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Brazilian Journal of Medical and Biological Research |
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Detection of cytotoxic activity on Vero cells in clinical isolates of Serratia marcescenscytotoxin productionnosocomial infectionsplasmidsSerratia marcescensvirulence factorsCytotoxin production was studied in 60 Serratia marcescens strains isolated from hospitalized patients. Association of cytotoxic activity with serotype, source of isolation and presence of plasmids was also evaluated. Thirteen of the 60 S. marcescens strains produced a cytotoxic effect on Vero cells. These strains were isolated from distinct clinical sources and classified into seven different serotypes (O1:H7; O4:NM; O10:NT; O19:NM; O6,14:H4; O6,14:NM and O6,14:H1). No relationship was observed between cytotoxic activity and clinical source or serotypes of the strains. Plasmids from five cytotoxin-producing S. marcescens strains were transferred to E. coli K12/711. The transconjugants did not exhibit cytotoxicity, indicating that the cytotoxic effect is not plasmid-mediated among these strains. Although a cytotoxic activity was demonstrated in filtrates of some S. marcescens strains, further studies should be performed to assess the role of this toxin in pathogenesisAssociação Brasileira de Divulgação Científica1997-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997001100005Brazilian Journal of Medical and Biological Research v.30 n.11 1997reponame:Brazilian Journal of Medical and Biological Researchinstname:Associação Brasileira de Divulgação Científica (ABDC)instacron:ABDC10.1590/S0100-879X1997001100005info:eu-repo/semantics/openAccessCarbonell,G.V.Alfieri,A.F.Alfieri,A.A.Vidotto,M.C.Levy,C.E.Darini,A.L.C.Yanaguita,R.M.eng1998-10-07T00:00:00Zoai:scielo:S0100-879X1997001100005Revistahttps://www.bjournal.org/https://old.scielo.br/oai/scielo-oai.phpbjournal@terra.com.br||bjournal@terra.com.br1414-431X0100-879Xopendoar:1998-10-07T00:00Brazilian Journal of Medical and Biological Research - Associação Brasileira de Divulgação Científica (ABDC)false |
dc.title.none.fl_str_mv |
Detection of cytotoxic activity on Vero cells in clinical isolates of Serratia marcescens |
title |
Detection of cytotoxic activity on Vero cells in clinical isolates of Serratia marcescens |
spellingShingle |
Detection of cytotoxic activity on Vero cells in clinical isolates of Serratia marcescens Carbonell,G.V. cytotoxin production nosocomial infections plasmids Serratia marcescens virulence factors |
title_short |
Detection of cytotoxic activity on Vero cells in clinical isolates of Serratia marcescens |
title_full |
Detection of cytotoxic activity on Vero cells in clinical isolates of Serratia marcescens |
title_fullStr |
Detection of cytotoxic activity on Vero cells in clinical isolates of Serratia marcescens |
title_full_unstemmed |
Detection of cytotoxic activity on Vero cells in clinical isolates of Serratia marcescens |
title_sort |
Detection of cytotoxic activity on Vero cells in clinical isolates of Serratia marcescens |
author |
Carbonell,G.V. |
author_facet |
Carbonell,G.V. Alfieri,A.F. Alfieri,A.A. Vidotto,M.C. Levy,C.E. Darini,A.L.C. Yanaguita,R.M. |
author_role |
author |
author2 |
Alfieri,A.F. Alfieri,A.A. Vidotto,M.C. Levy,C.E. Darini,A.L.C. Yanaguita,R.M. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Carbonell,G.V. Alfieri,A.F. Alfieri,A.A. Vidotto,M.C. Levy,C.E. Darini,A.L.C. Yanaguita,R.M. |
dc.subject.por.fl_str_mv |
cytotoxin production nosocomial infections plasmids Serratia marcescens virulence factors |
topic |
cytotoxin production nosocomial infections plasmids Serratia marcescens virulence factors |
description |
Cytotoxin production was studied in 60 Serratia marcescens strains isolated from hospitalized patients. Association of cytotoxic activity with serotype, source of isolation and presence of plasmids was also evaluated. Thirteen of the 60 S. marcescens strains produced a cytotoxic effect on Vero cells. These strains were isolated from distinct clinical sources and classified into seven different serotypes (O1:H7; O4:NM; O10:NT; O19:NM; O6,14:H4; O6,14:NM and O6,14:H1). No relationship was observed between cytotoxic activity and clinical source or serotypes of the strains. Plasmids from five cytotoxin-producing S. marcescens strains were transferred to E. coli K12/711. The transconjugants did not exhibit cytotoxicity, indicating that the cytotoxic effect is not plasmid-mediated among these strains. Although a cytotoxic activity was demonstrated in filtrates of some S. marcescens strains, further studies should be performed to assess the role of this toxin in pathogenesis |
publishDate |
1997 |
dc.date.none.fl_str_mv |
1997-11-01 |
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://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997001100005 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997001100005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0100-879X1997001100005 |
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 |
Associação Brasileira de Divulgação Científica |
publisher.none.fl_str_mv |
Associação Brasileira de Divulgação Científica |
dc.source.none.fl_str_mv |
Brazilian Journal of Medical and Biological Research v.30 n.11 1997 reponame:Brazilian Journal of Medical and Biological Research instname:Associação Brasileira de Divulgação Científica (ABDC) instacron:ABDC |
instname_str |
Associação Brasileira de Divulgação Científica (ABDC) |
instacron_str |
ABDC |
institution |
ABDC |
reponame_str |
Brazilian Journal of Medical and Biological Research |
collection |
Brazilian Journal of Medical and Biological Research |
repository.name.fl_str_mv |
Brazilian Journal of Medical and Biological Research - Associação Brasileira de Divulgação Científica (ABDC) |
repository.mail.fl_str_mv |
bjournal@terra.com.br||bjournal@terra.com.br |
_version_ |
1754302928855760896 |