2021
Escherichia coli Strains Producing Selected Bacteriocins Inhibit Porcine Enterotoxigenic Escherichia coli (ETEC) under both In Vitro and In Vivo Conditions
HRALA, Matěj, Juraj BOSÁK, Lenka MICENKOVÁ, Jitka KŘENOVÁ, Matej LEXA et. al.Základní údaje
Originální název
Escherichia coli Strains Producing Selected Bacteriocins Inhibit Porcine Enterotoxigenic Escherichia coli (ETEC) under both In Vitro and In Vivo Conditions
Autoři
HRALA, Matěj (203 Česká republika, domácí), Juraj BOSÁK (703 Slovensko, domácí), Lenka MICENKOVÁ (703 Slovensko, domácí), Jitka KŘENOVÁ (203 Česká republika, domácí), Matej LEXA (703 Slovensko, domácí), Viktória PIRKOVÁ (703 Slovensko, domácí), Zuzana TOMASTIKOVA (203 Česká republika), Ivana KOLÁČKOVÁ (203 Česká republika) a David ŠMAJS (203 Česká republika, garant, domácí)
Vydání
Applied and Environmental Microbiology, WASHINGTON, DC (USA), AMER SOC MICROBIOLOGY, 2021, 0099-2240
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10606 Microbiology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.005
Kód RIV
RIV/00216224:14110/21:00123081
Organizační jednotka
Lékařská fakulta
UT WoS
000693249500022
Klíčová slova anglicky
probiotic; Escherichia; E. coli; bacteriocin; pig; ETEC; STEC
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 27. 10. 2022 13:07, Mgr. Tereza Miškechová
Anotace
V originále
Enterotoxigenic Escherichia coli (ETEC) and Shiga toxin-producing E. coli (STEC) strains are the causative agents of severe foodborne diseases in both humans and animals. In this study, porcine pathogenic E. coli strains (n =277) as well as porcine commensal strains (n = 188) were tested for their susceptibilities to 34 bacteriocin monoproducers to identify the most suitable bacteriocin types inhibiting porcine pathogens. Under in vitro conditions, the set of pathogenic E. coli strains was found to be significantly more susceptible to the majority of tested bacteriocins than commensal E. coli. Based on the production of bacteriocins with specific activity against pathogens, three potentially probiotic commensal E. coli strains of human origin were selected. These strains were found to be able to outcompete ETEC strains expressing F4 or F18 fimbriae in liquid culture and also decreased the severity and duration of diarrhea in piglets during experimental ETEC infection as well as pathogen numbers on the last day of in vivo experimentation. While the extents of the probiotic effect were different for each strain, the cocktail of all three strains showed the most pronounced beneficial effects, suggesting synergy between the tested E. coli strains. IMPORTANCE Increasing levels of antibiotic resistance among bacteria also increase the need for alternatives to conventional antibiotic treatment. Pathogenic Escherichia coli represents a major diarrheic infectious agent of piglets in their postweaning period; however, available measures to control these infections are limited. This study describes three novel E. coli strains producing antimicrobial compounds (bacteriocins) that actively inhibit a majority of toxigenic E. coli strains. The beneficial effect of three potentially probiotic E. coli strains was demonstrated under both in vitro and in vivo conditions. The novel probiotic candidates may be used as prophylaxis during piglets' postweaning period to overcome common infections caused by E. coli.
Návaznosti
EF16_013/0001761, projekt VaV |
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EF17_043/0009632, projekt VaV |
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LM2018121, projekt VaV |
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MUNI/A/1325/2020, interní kód MU |
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ROZV/23/LF13/2019, interní kód MU |
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ROZV/28/LF15/2020, interní kód MU |
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