Bacteriocin Production As A Mechanism For The Antfinfective Activity of Lactobacillus Salivarius Ucc118

Typeset version

 

TY  - JOUR
  - Corr, SC, Li, Y, Riedel, CU, O'Toole, PW, Hill, C, Gahan, CGM
  - 2007
  - April
  - Proceedings of The National Academy of Sciences of The United States of America
  - Bacteriocin Production As A Mechanism For The Antfinfective Activity of Lactobacillus Salivarius Ucc118
  - Validated
  - ()
  - 104
  - 18
  - 7617
  - 7621
  - The mechanisms by which probiotic strains enhance the health of the host remain largely uncharacterized. Here we demonstrate that Lactobacillus salivarius UCC118, a recently sequenced and genetically tractable probiotic strain of human origin, produces a bacteriocin in vivo that can significantly protect mice against infection with the invasive foodborne pathogen Listeria monocytogenes. A stable mutant of Lb. salivarius UCC118 that is unable to produce the Abp118 bacteriocin also failed to protect mice against infection with two strains of L. monocytogenes, EGDe and LO28, confirming that bacteriocin production is the primary mediator of protection against this organism. Furthermore, Lb. salivarius UCC118 did not offer any protection when mice were infected with a strain of L. monocytogenes expressing the cognate Abp118 immunity protein AbpIM, confirming that the antimicrobial effect is a result of direct antagonism between Lb. salivarius and the pathogen, mediated by the bacteriocin Abp118..
  - DOI 10.1073/pnas.0700440104
DA  - 2007/04
ER  - 
@article{V727026,
   = {Corr,  SC and  Li,  Y and  Riedel,  CU and  O'Toole,  PW and  Hill,  C and  Gahan,  CGM },
   = {2007},
   = {April},
   = {Proceedings of The National Academy of Sciences of The United States of America},
   = {Bacteriocin Production As A Mechanism For The Antfinfective Activity of Lactobacillus Salivarius Ucc118},
   = {Validated},
   = {()},
   = {104},
   = {18},
  pages = {7617--7621},
   = {{The mechanisms by which probiotic strains enhance the health of the host remain largely uncharacterized. Here we demonstrate that Lactobacillus salivarius UCC118, a recently sequenced and genetically tractable probiotic strain of human origin, produces a bacteriocin in vivo that can significantly protect mice against infection with the invasive foodborne pathogen Listeria monocytogenes. A stable mutant of Lb. salivarius UCC118 that is unable to produce the Abp118 bacteriocin also failed to protect mice against infection with two strains of L. monocytogenes, EGDe and LO28, confirming that bacteriocin production is the primary mediator of protection against this organism. Furthermore, Lb. salivarius UCC118 did not offer any protection when mice were infected with a strain of L. monocytogenes expressing the cognate Abp118 immunity protein AbpIM, confirming that the antimicrobial effect is a result of direct antagonism between Lb. salivarius and the pathogen, mediated by the bacteriocin Abp118..}},
   = {DOI 10.1073/pnas.0700440104},
  source = {IRIS}
}
AUTHORSCorr, SC, Li, Y, Riedel, CU, O'Toole, PW, Hill, C, Gahan, CGM
YEAR2007
MONTHApril
JOURNAL_CODEProceedings of The National Academy of Sciences of The United States of America
TITLEBacteriocin Production As A Mechanism For The Antfinfective Activity of Lactobacillus Salivarius Ucc118
STATUSValidated
TIMES_CITED()
SEARCH_KEYWORD
VOLUME104
ISSUE18
START_PAGE7617
END_PAGE7621
ABSTRACTThe mechanisms by which probiotic strains enhance the health of the host remain largely uncharacterized. Here we demonstrate that Lactobacillus salivarius UCC118, a recently sequenced and genetically tractable probiotic strain of human origin, produces a bacteriocin in vivo that can significantly protect mice against infection with the invasive foodborne pathogen Listeria monocytogenes. A stable mutant of Lb. salivarius UCC118 that is unable to produce the Abp118 bacteriocin also failed to protect mice against infection with two strains of L. monocytogenes, EGDe and LO28, confirming that bacteriocin production is the primary mediator of protection against this organism. Furthermore, Lb. salivarius UCC118 did not offer any protection when mice were infected with a strain of L. monocytogenes expressing the cognate Abp118 immunity protein AbpIM, confirming that the antimicrobial effect is a result of direct antagonism between Lb. salivarius and the pathogen, mediated by the bacteriocin Abp118..
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ISBN_ISSN
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DOI_LINKDOI 10.1073/pnas.0700440104
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