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dc.provenanceINTA-
dc.contributorRabinovitz, Bettina Carol-
dc.contributorLarzábal, M.-
dc.contributorVilte, Daniel Alejandro-
dc.contributorCataldi, Angel Adrian-
dc.contributorMercado, Elsa Cristina-
dc.creatorRabinovitz, Bettina Carol-
dc.creatorLarzábal, M.-
dc.creatorVilte, Daniel Alejandro-
dc.creatorCataldi, Angel Adrian-
dc.creatorMercado, Elsa Cristina-
dc.date2017-08-22T13:22:37Z-
dc.date2017-08-22T13:22:37Z-
dc.date2016-05-
dc.date.accessioned2019-04-29T16:26:29Z-
dc.date.available2019-04-29T16:26:29Z-
dc.date.issued2017-08-22T13:22:37Z-
dc.date.issued2017-08-22T13:22:37Z-
dc.date.issued2016-05-
dc.identifier0264-410X-
dc.identifierhttps://doi.org/10.1016/j.vaccine.2016.04.056-
dc.identifierhttp://hdl.handle.net/20.500.12123/1001-
dc.identifierhttp://linkinghub.elsevier.com/retrieve/pii/S0264410X16302109-
dc.identifier.urihttp://rodna.bn.gov.ar:8080/jspui/handle/bnmm/313299-
dc.descriptionEnterohemorrhagic Escherichia coli (EHEC) O157:H7 is responsible for intestinal disease and hemolytic uremic syndrome (HUS), a serious systemic complication which particularly affects children. In this study, we evaluated whether passive immunization protects from EHEC O157:H7 colonization and renal damage, by using a weaned BALB/c mouse model of infection. Recombinant proteins EspB and the carboxyl-terminal fragment of 280 amino acids of γ-intimin (γ-Int C280) were used in combination with a macrophage-activating lipopeptide-2 (MALP) adjuvant to immunize pregnant mice by the intranasal route. Neonatal mice were allowed to suckle vaccinated or sham-vaccinated dams until weaning when they were challenged by the oral route with a suspension of an E. coli O157:H7 Stx2+ strain. The excretion of the inoculated strain was followed for 72 h. All vaccinated dams exhibited elevated serum IgG response against both γ-Int C280 and EspB. Passive immunization of newborn mice resulted in a significant increase in serum IgG titers against γ-Int C280 and a slight increase in EspB-specific antibodies. The neonates from vaccinated dams showed a significant reduction in EHEC O157:H7 colonization 48 h post challenge. In addition, the level of plasma urea concentration, a marker of renal failure, was significantly higher in offsprings of sham-vaccinated mice. In conclusion, vaccination of pregnant dams with γ-Int C280 and EspB could reduce colonization and systemic toxicity of EHEC O157:H7 in their suckling offsprings.-
dc.formatapplication/pdf-
dc.languageeng-
dc.rightsinfo:eu-repo/semantics/restrictedAccess-
dc.sourceVaccine 34 (25) : 2793-2797 (May 2016)-
dc.sourcereponame:INTA Digital (INTA)-
dc.sourceinstname:Instituto Nacional de Tecnología Agropecuaria-
dc.sourceinstacron:INTA-
dc.source.uri0264-410X-
dc.source.urihttps://doi.org/10.1016/j.vaccine.2016.04.056-
dc.source.urihttp://hdl.handle.net/20.500.12123/1001-
dc.source.urihttp://linkinghub.elsevier.com/retrieve/pii/S0264410X16302109-
dc.source.urihttps://doi.org/10.1016/j.vaccine.2016.04.056-
dc.source.urihttp://hdl.handle.net/20.500.12123/1001-
dc.source.urihttp://linkinghub.elsevier.com/retrieve/pii/S0264410X16302109-
dc.subjectEscherichia coli-
dc.subjectVaccination-
dc.subjectMice-
dc.subjectInfection-
dc.subjectVacunación-
dc.subjectRatón-
dc.subjectInfección-
dc.titleThe intranasal vaccination of pregnant dams with Intimin and EspBconfers protection in neonatal mice from Escherichia coli (EHEC)O157:H7 infection-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/acceptedVersion-
dc.typeinfo:ar-repo/semantics/articulo-
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