INTRACELLULAR PERSISTENCE OF ENTEROAGGREGATIVE ESCHERICHIA COLI INDUCES A PROINFLAMMATORY CYTOKINES SECRETION IN INTESTINAL EPITHELIAL T84 CELLS
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Arquivos de gastroenterologia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-28032018000200133 |
Resumo: | ABSTRACT BACKGROUND: The competence of enteroaggregative Escherichia coli (EAEC) to adhere to the intestinal epithelium of the host is a key role to the colonization and disease development. The virulence genes are crucial for EAEC pathogenicity during adherence, internalization and persistence in the host. The overwhelming majority of antigen encounters in a host occurs on the intestine surface, which is considered a part of innate mucosal immunity. Intestinal epithelial cells (IECs) can be activated by microorganisms and induce an immune response. OBJECTIVE: The present study investigated the interaction of invasive EAEC strains with T84 intestinal epithelial cell line in respect to bacterial invasiveness, persistence and cytokines production. METHODS: We evaluated intracellular persistence of invasive EAEC strains (H92/3, I49/3 and the prototype 042) and production of cytokines by sandwich ELISA in T84 cells upon 24 hours of infection. RESULTS: The survival rates of the prototype 042 was 0.5x103 CFU/mL while survival of I49/3 and H92/3 reached 3.2x103 CFU/mL and 1.4x103 CFU/mL, respectively. Infection with all EAEC strains tested induced significant amounts of IL-8, IL-6 and TNF-α compared to uninfected T84 cells. CONCLUSION: These data showed that infection by invasive EAEC induce a proinflammatory immune response in intestinal epithelial T84 cells. |
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Arquivos de gastroenterologia (Online) |
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|
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INTRACELLULAR PERSISTENCE OF ENTEROAGGREGATIVE ESCHERICHIA COLI INDUCES A PROINFLAMMATORY CYTOKINES SECRETION IN INTESTINAL EPITHELIAL T84 CELLSEscherichia coli infectionsIntestinal mucosaEpithelial cellsCytokinesABSTRACT BACKGROUND: The competence of enteroaggregative Escherichia coli (EAEC) to adhere to the intestinal epithelium of the host is a key role to the colonization and disease development. The virulence genes are crucial for EAEC pathogenicity during adherence, internalization and persistence in the host. The overwhelming majority of antigen encounters in a host occurs on the intestine surface, which is considered a part of innate mucosal immunity. Intestinal epithelial cells (IECs) can be activated by microorganisms and induce an immune response. OBJECTIVE: The present study investigated the interaction of invasive EAEC strains with T84 intestinal epithelial cell line in respect to bacterial invasiveness, persistence and cytokines production. METHODS: We evaluated intracellular persistence of invasive EAEC strains (H92/3, I49/3 and the prototype 042) and production of cytokines by sandwich ELISA in T84 cells upon 24 hours of infection. RESULTS: The survival rates of the prototype 042 was 0.5x103 CFU/mL while survival of I49/3 and H92/3 reached 3.2x103 CFU/mL and 1.4x103 CFU/mL, respectively. Infection with all EAEC strains tested induced significant amounts of IL-8, IL-6 and TNF-α compared to uninfected T84 cells. CONCLUSION: These data showed that infection by invasive EAEC induce a proinflammatory immune response in intestinal epithelial T84 cells.Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologia e Outras Especialidades - IBEPEGE. 2018-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-28032018000200133Arquivos de Gastroenterologia v.55 n.2 2018reponame:Arquivos de gastroenterologia (Online)instname:Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologiainstacron:IBEPEGE10.1590/s0004-2803.201800000-23info:eu-repo/semantics/openAccessBRAGA,Ricardo Luís LopesPEREIRA,Ana Claudia MachadoFERREIRA,Andréa FonsecaROSA,Ana Cláudia de PaulaPEREIRA-MANFRO,Wânia Ferrazeng2018-08-27T00:00:00Zoai:scielo:S0004-28032018000200133Revistahttp://www.scielo.br/aghttps://old.scielo.br/oai/scielo-oai.php||secretariaarqgastr@hospitaligesp.com.br1678-42190004-2803opendoar:2018-08-27T00:00Arquivos de gastroenterologia (Online) - Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologiafalse |
dc.title.none.fl_str_mv |
INTRACELLULAR PERSISTENCE OF ENTEROAGGREGATIVE ESCHERICHIA COLI INDUCES A PROINFLAMMATORY CYTOKINES SECRETION IN INTESTINAL EPITHELIAL T84 CELLS |
title |
INTRACELLULAR PERSISTENCE OF ENTEROAGGREGATIVE ESCHERICHIA COLI INDUCES A PROINFLAMMATORY CYTOKINES SECRETION IN INTESTINAL EPITHELIAL T84 CELLS |
spellingShingle |
INTRACELLULAR PERSISTENCE OF ENTEROAGGREGATIVE ESCHERICHIA COLI INDUCES A PROINFLAMMATORY CYTOKINES SECRETION IN INTESTINAL EPITHELIAL T84 CELLS BRAGA,Ricardo Luís Lopes Escherichia coli infections Intestinal mucosa Epithelial cells Cytokines |
title_short |
INTRACELLULAR PERSISTENCE OF ENTEROAGGREGATIVE ESCHERICHIA COLI INDUCES A PROINFLAMMATORY CYTOKINES SECRETION IN INTESTINAL EPITHELIAL T84 CELLS |
title_full |
INTRACELLULAR PERSISTENCE OF ENTEROAGGREGATIVE ESCHERICHIA COLI INDUCES A PROINFLAMMATORY CYTOKINES SECRETION IN INTESTINAL EPITHELIAL T84 CELLS |
title_fullStr |
INTRACELLULAR PERSISTENCE OF ENTEROAGGREGATIVE ESCHERICHIA COLI INDUCES A PROINFLAMMATORY CYTOKINES SECRETION IN INTESTINAL EPITHELIAL T84 CELLS |
title_full_unstemmed |
INTRACELLULAR PERSISTENCE OF ENTEROAGGREGATIVE ESCHERICHIA COLI INDUCES A PROINFLAMMATORY CYTOKINES SECRETION IN INTESTINAL EPITHELIAL T84 CELLS |
title_sort |
INTRACELLULAR PERSISTENCE OF ENTEROAGGREGATIVE ESCHERICHIA COLI INDUCES A PROINFLAMMATORY CYTOKINES SECRETION IN INTESTINAL EPITHELIAL T84 CELLS |
author |
BRAGA,Ricardo Luís Lopes |
author_facet |
BRAGA,Ricardo Luís Lopes PEREIRA,Ana Claudia Machado FERREIRA,Andréa Fonseca ROSA,Ana Cláudia de Paula PEREIRA-MANFRO,Wânia Ferraz |
author_role |
author |
author2 |
PEREIRA,Ana Claudia Machado FERREIRA,Andréa Fonseca ROSA,Ana Cláudia de Paula PEREIRA-MANFRO,Wânia Ferraz |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
BRAGA,Ricardo Luís Lopes PEREIRA,Ana Claudia Machado FERREIRA,Andréa Fonseca ROSA,Ana Cláudia de Paula PEREIRA-MANFRO,Wânia Ferraz |
dc.subject.por.fl_str_mv |
Escherichia coli infections Intestinal mucosa Epithelial cells Cytokines |
topic |
Escherichia coli infections Intestinal mucosa Epithelial cells Cytokines |
description |
ABSTRACT BACKGROUND: The competence of enteroaggregative Escherichia coli (EAEC) to adhere to the intestinal epithelium of the host is a key role to the colonization and disease development. The virulence genes are crucial for EAEC pathogenicity during adherence, internalization and persistence in the host. The overwhelming majority of antigen encounters in a host occurs on the intestine surface, which is considered a part of innate mucosal immunity. Intestinal epithelial cells (IECs) can be activated by microorganisms and induce an immune response. OBJECTIVE: The present study investigated the interaction of invasive EAEC strains with T84 intestinal epithelial cell line in respect to bacterial invasiveness, persistence and cytokines production. METHODS: We evaluated intracellular persistence of invasive EAEC strains (H92/3, I49/3 and the prototype 042) and production of cytokines by sandwich ELISA in T84 cells upon 24 hours of infection. RESULTS: The survival rates of the prototype 042 was 0.5x103 CFU/mL while survival of I49/3 and H92/3 reached 3.2x103 CFU/mL and 1.4x103 CFU/mL, respectively. Infection with all EAEC strains tested induced significant amounts of IL-8, IL-6 and TNF-α compared to uninfected T84 cells. CONCLUSION: These data showed that infection by invasive EAEC induce a proinflammatory immune response in intestinal epithelial T84 cells. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-06-01 |
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=S0004-28032018000200133 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-28032018000200133 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s0004-2803.201800000-23 |
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 Brasileiro de Estudos e Pesquisas de Gastroenterologia e Outras Especialidades - IBEPEGE. |
publisher.none.fl_str_mv |
Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologia e Outras Especialidades - IBEPEGE. |
dc.source.none.fl_str_mv |
Arquivos de Gastroenterologia v.55 n.2 2018 reponame:Arquivos de gastroenterologia (Online) instname:Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologia instacron:IBEPEGE |
instname_str |
Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologia |
instacron_str |
IBEPEGE |
institution |
IBEPEGE |
reponame_str |
Arquivos de gastroenterologia (Online) |
collection |
Arquivos de gastroenterologia (Online) |
repository.name.fl_str_mv |
Arquivos de gastroenterologia (Online) - Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologia |
repository.mail.fl_str_mv |
||secretariaarqgastr@hospitaligesp.com.br |
_version_ |
1754193348799758336 |