About: Salmonella enterica serovar Typhimurium and Enteritidis infection of pigs cytokine signalling in palatine tonsils     Goto   Sponge   NotDistinct   Permalink

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  • Pigs are considered as one of the major sources of zoonotic strains of Salmonella enterica for humans. Out of many S. enterica serovars, S. Typhimurium dominates in pigs, however, in several countries in Central Europe, S. Enteritidis is also quite frequent in pig herds. In this study we therefore compared the colonisation of pigs with S. Typhimurium and S. Enteritidis. We found that 3 weeks after infection S. Enteritidis 147 colonised the intestinal tract in higher quantities but was shed in faeces in lower quantities than S. Typhimurium 17C10. In a second experiment we found out that S. Enteritidis 147 and its SPI-1 and SPI-4 mutants increased proinflammatory cytokine (IL-1 beta and IL-8) signalling in the ileum 5 days post infection. On the other hand, independent of SPI-1 or SPI-4, S. Enteritidis 147 suppressed expression of IL-18, MCP1, TLR2, CD86, IL-7, IL-10 and IL-15 in the palatine tonsils. The suppression of cytokine signalling may facilitate the initial colonisation of the palatine tonsils by Salmonella. Moreover, immune suppression may also influence pig resistance to opportunistic pathogens and Salmonella infection in pigs thus may become an issue not only in terms of pork contamination but also in terms of affecting the immunological status of pig herds.
  • Pigs are considered as one of the major sources of zoonotic strains of Salmonella enterica for humans. Out of many S. enterica serovars, S. Typhimurium dominates in pigs, however, in several countries in Central Europe, S. Enteritidis is also quite frequent in pig herds. In this study we therefore compared the colonisation of pigs with S. Typhimurium and S. Enteritidis. We found that 3 weeks after infection S. Enteritidis 147 colonised the intestinal tract in higher quantities but was shed in faeces in lower quantities than S. Typhimurium 17C10. In a second experiment we found out that S. Enteritidis 147 and its SPI-1 and SPI-4 mutants increased proinflammatory cytokine (IL-1 beta and IL-8) signalling in the ileum 5 days post infection. On the other hand, independent of SPI-1 or SPI-4, S. Enteritidis 147 suppressed expression of IL-18, MCP1, TLR2, CD86, IL-7, IL-10 and IL-15 in the palatine tonsils. The suppression of cytokine signalling may facilitate the initial colonisation of the palatine tonsils by Salmonella. Moreover, immune suppression may also influence pig resistance to opportunistic pathogens and Salmonella infection in pigs thus may become an issue not only in terms of pork contamination but also in terms of affecting the immunological status of pig herds. (en)
Title
  • Salmonella enterica serovar Typhimurium and Enteritidis infection of pigs cytokine signalling in palatine tonsils
  • Salmonella enterica serovar Typhimurium and Enteritidis infection of pigs cytokine signalling in palatine tonsils (en)
skos:prefLabel
  • Salmonella enterica serovar Typhimurium and Enteritidis infection of pigs cytokine signalling in palatine tonsils
  • Salmonella enterica serovar Typhimurium and Enteritidis infection of pigs cytokine signalling in palatine tonsils (en)
skos:notation
  • RIV/00027162:_____/12:#0000880!RIV13-MZE-00027162
http://linked.open...avai/predkladatel
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(ED0006/01/01), P(GA524/08/1606), Z(MZE0002716202)
http://linked.open...iv/cisloPeriodika
  • 1-2
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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http://linked.open...dnocenehoVysledku
  • 166669
http://linked.open...ai/riv/idVysledku
  • RIV/00027162:_____/12:#0000880
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Pig; Salmonella; Immune suppression; Tonsil; SPI-1; SPI-4 (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [F130ABBF77EA]
http://linked.open...i/riv/nazevZdroje
  • Veterinary Microbiology
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
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http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 156
http://linked.open...iv/tvurceVysledku
  • Faldyna, Martin
  • Havlíčková, Hana
  • Kýrová, Kamila
  • Levá, Lenka
  • Matiašovic, Ján
  • Rychlík, Ivan
  • Volf, Jiří
  • Šišák, František
  • Štěpánová, Hana
http://linked.open...ain/vavai/riv/wos
  • 000302188100014
http://linked.open...n/vavai/riv/zamer
issn
  • 0378-1135
number of pages
http://bibframe.org/vocab/doi
  • 10.1016/j.vetmic.2011.10.004
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