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Ruiz MJ, Soto LP, Sirini NE, Werning ML, Olivero CR, Zimmermann JA, Zbrun MV, Acosta FF, Signorini ML, Frizzo LS. Murine colonization model by Campylobacter coli DSPV458. J Appl Microbiol 2021; 132:1457-1466. [PMID: 34465011 DOI: 10.1111/jam.15272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 08/11/2021] [Accepted: 08/24/2021] [Indexed: 11/29/2022]
Abstract
AIMS To generate a murine experimental model of colonization by Campylobacter coli DSPV458. METHODS AND RESULTS Twelve adult Balb/cCmedc female mice were housed in a treated group (T-G) and a control group (C-G) for 4 weeks. Both experimental groups received antibiotics for 5 days during the first week. The T-G was administered with 6.68log10 CFU of C. coli DSPV458 by oesophageal gavage. Necropsies were performed weekly to evaluate translocation and intestinal colonization in the spleen and liver and in the ileum and cecum respectively. Samples were cultured to quantify intestinal microbiota members. Faeces were cultured weekly for a C. coli DSPV458 count. Campylobacter coli DSPV458 was isolated from all the inoculated mice. The recovered level of C. coli DSPV458 was, on average, 6.9 log10 CFUg-1 , 8.0 log10 CFUg-1 and 1.6 log10 CFUg-1 in faeces, cecum and ileum respectively. Colonization by C. coli DSPV458 does not alter the normal clinical and physiological status. CONCLUSIONS Campylobacter coli DSPV458 does not have an invasive capacity, and the model is suitable for evaluating strategies to reduce intestinal loads. SIGNIFICANCE AND IMPACT OF STUDY Farm animals have an important impact on thermotolerant Campylobacter transmission to humans. Extremely few colonization models by C. coli have been reported to date. In food-producing animals, infection is mild or absent and thermotolerant Campylobacter colonize the intestines of animals. Colonization models are specific models that do not cause infection as they do not generally result in diarrhoea or other signs of disease. Therefore, this model will allow to evaluate the evolution of colonization by thermotolerant Campylobacter and the alternative tools development to antibiotics that limit their colonization in food-producing animals.
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Affiliation(s)
- M J Ruiz
- Laboratory of Food Analysis "Rodolfo Oscar DALLA SANTINA", Institute of Veterinary Science (ICiVet Litoral), National University of the Litoral-National Council of Scientific and Technical Research (UNL/CONICET), Esperanza, Province of Santa Fe, Argentina.,Department of Animal Health and Preventive Medicine, Faculty of Veterinary Sciences, National University of the Center of the Province of Buenos Aires, Argentina
| | - L P Soto
- Laboratory of Food Analysis "Rodolfo Oscar DALLA SANTINA", Institute of Veterinary Science (ICiVet Litoral), National University of the Litoral-National Council of Scientific and Technical Research (UNL/CONICET), Esperanza, Province of Santa Fe, Argentina.,Department of Public Health, Faculty of Veterinary Science, Litoral National University, Esperanza, Province of Santa Fe, Argentina
| | - N E Sirini
- Laboratory of Food Analysis "Rodolfo Oscar DALLA SANTINA", Institute of Veterinary Science (ICiVet Litoral), National University of the Litoral-National Council of Scientific and Technical Research (UNL/CONICET), Esperanza, Province of Santa Fe, Argentina
| | - M L Werning
- Laboratory of Food Analysis "Rodolfo Oscar DALLA SANTINA", Institute of Veterinary Science (ICiVet Litoral), National University of the Litoral-National Council of Scientific and Technical Research (UNL/CONICET), Esperanza, Province of Santa Fe, Argentina
| | - C R Olivero
- Laboratory of Food Analysis "Rodolfo Oscar DALLA SANTINA", Institute of Veterinary Science (ICiVet Litoral), National University of the Litoral-National Council of Scientific and Technical Research (UNL/CONICET), Esperanza, Province of Santa Fe, Argentina
| | - J A Zimmermann
- Laboratory of Food Analysis "Rodolfo Oscar DALLA SANTINA", Institute of Veterinary Science (ICiVet Litoral), National University of the Litoral-National Council of Scientific and Technical Research (UNL/CONICET), Esperanza, Province of Santa Fe, Argentina.,Department of Public Health, Faculty of Veterinary Science, Litoral National University, Esperanza, Province of Santa Fe, Argentina
| | - M V Zbrun
- Department of Public Health, Faculty of Veterinary Science, Litoral National University, Esperanza, Province of Santa Fe, Argentina.,National Council of Scientific and Technical Research, National Institute of Agricultural Technology EEA Rafaela, Rafaela, Province of Santa Fe, Argentina
| | - F F Acosta
- Laboratory of Food Analysis "Rodolfo Oscar DALLA SANTINA", Institute of Veterinary Science (ICiVet Litoral), National University of the Litoral-National Council of Scientific and Technical Research (UNL/CONICET), Esperanza, Province of Santa Fe, Argentina
| | - M L Signorini
- Department of Public Health, Faculty of Veterinary Science, Litoral National University, Esperanza, Province of Santa Fe, Argentina.,National Council of Scientific and Technical Research, National Institute of Agricultural Technology EEA Rafaela, Rafaela, Province of Santa Fe, Argentina
| | - L S Frizzo
- Laboratory of Food Analysis "Rodolfo Oscar DALLA SANTINA", Institute of Veterinary Science (ICiVet Litoral), National University of the Litoral-National Council of Scientific and Technical Research (UNL/CONICET), Esperanza, Province of Santa Fe, Argentina.,Department of Public Health, Faculty of Veterinary Science, Litoral National University, Esperanza, Province of Santa Fe, Argentina
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Ruiz MJ, Zbrun MV, Signorini ML, Zimmermann JA, Soto LP, Rosmini MR, Frizzo LS. In vitro screening and in vivo colonization pilot model of Lactobacillus plantarum LP5 and Campylobacter coli DSPV 458 in mice. Arch Microbiol 2021; 203:4161-4171. [PMID: 34061232 DOI: 10.1007/s00203-021-02385-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/23/2021] [Accepted: 05/18/2021] [Indexed: 11/29/2022]
Abstract
The objective of this work was to determine the antibacterial effect of Lactobacillus plantarum strains of pork origin against Campylobacter coli strains, and to conduct experimental colonization pilot models in mice for both microorganisms. Inhibition assays allowed evaluation and selection of L. plantarum LP5 as the strain with the highest antagonistic activity against C. coli and with the best potential to be used in in vivo study. Adult 6-week-old female Balb/cCmedc mice were lodged in two groups. The treated group was administered with 9.4 log10CFU/2 times/wk of L. plantarum LP5. L. plantarum LP5 was recovered from the feces and cecum of the inoculated mice. However, when bacteria stopped being administered, probiotic counts decreased. Experimental colonization with C. coli was carried out in five groups of mice. All animals were treated with antibiotics in their drinking water to weaken the indigenous microbiota and to allow colonization of C. coli. Four groups were administered once with different C. coli strains (DSPV458: 8.49 log10CFU; DSPV567: 8.09 log10CFU; DSPV570: 8.46 log10CFU; DSPV541: 8.86 log10CFU, respectively). After 8 h, mice inoculated with different C. coli strains were colonized because the pathogen was detected in their feces. L. plantarum LP5 tolerated the gastrointestinal conditions of murine model without generating adverse effects on the animals. C. coli DSPV458 colonized the mice without causing infection by lodging in their digestive tract, thus generating a reproducible colonization model. Both models combined could be used as protection murine models against pathogens to test alternative control tools to antibiotics.
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Affiliation(s)
- M J Ruiz
- Laboratory of Food Analysis 'Rodolfo Oscar Dalla Santina', Institute of Veterinary Science (ICiVet Litoral), National University of the Litoral-National Council of Scientific and Technical Research (UNL/CONICET), Esperanza, Province of Santa Fe, Argentina.,Department of Animal Health and Preventive Medicine, Faculty of Veterinary Sciences, National University of the Center of the Province of Buenos Aires (UNCPBA), Tandil, Province of Buenos Aires, Argentina
| | - M V Zbrun
- Laboratory of Food Analysis 'Rodolfo Oscar Dalla Santina', Institute of Veterinary Science (ICiVet Litoral), National University of the Litoral-National Council of Scientific and Technical Research (UNL/CONICET), Esperanza, Province of Santa Fe, Argentina.,Department of Public Health, Faculty of Veterinary Science, Litoral National University (DSPV-FCV-UNL), Esperanza, Province of Santa Fe, Argentina
| | - M L Signorini
- Department of Public Health, Faculty of Veterinary Science, Litoral National University (DSPV-FCV-UNL), Esperanza, Province of Santa Fe, Argentina.,National Council of Scientific and Technical Research, National Institute of Agricultural Technology EEA Rafaela (CONICET/INTA), Rafaela, Province of Santa Fe, Argentina
| | - J A Zimmermann
- Laboratory of Food Analysis 'Rodolfo Oscar Dalla Santina', Institute of Veterinary Science (ICiVet Litoral), National University of the Litoral-National Council of Scientific and Technical Research (UNL/CONICET), Esperanza, Province of Santa Fe, Argentina.,Department of Public Health, Faculty of Veterinary Science, Litoral National University (DSPV-FCV-UNL), Esperanza, Province of Santa Fe, Argentina
| | - L P Soto
- Laboratory of Food Analysis 'Rodolfo Oscar Dalla Santina', Institute of Veterinary Science (ICiVet Litoral), National University of the Litoral-National Council of Scientific and Technical Research (UNL/CONICET), Esperanza, Province of Santa Fe, Argentina.,Department of Public Health, Faculty of Veterinary Science, Litoral National University (DSPV-FCV-UNL), Esperanza, Province of Santa Fe, Argentina
| | - M R Rosmini
- Department of Public Health, Faculty of Veterinary Science, Litoral National University (DSPV-FCV-UNL), Esperanza, Province of Santa Fe, Argentina
| | - L S Frizzo
- Laboratory of Food Analysis 'Rodolfo Oscar Dalla Santina', Institute of Veterinary Science (ICiVet Litoral), National University of the Litoral-National Council of Scientific and Technical Research (UNL/CONICET), Esperanza, Province of Santa Fe, Argentina. .,Department of Public Health, Faculty of Veterinary Science, Litoral National University (DSPV-FCV-UNL), Esperanza, Province of Santa Fe, Argentina.
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