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HOME > J. Microbiol > Volume 54(7); 2016 > Article
Journal Article
Carbohydrate-binding specificities of potential probiotic Lactobacillus strains in porcine jejunal (IPEC-J2) cells and porcine mucin
Valerie Diane Valeriano , Bernadette B. Bagon , Marilen P. Balolong , Dae-Kyung Kang
Journal of Microbiology 2016;54(7):510-519.
DOI: https://doi.org/10.1007/s12275-016-6168-7
Published online: June 28, 2016
Department of Animal Resource Science, Dankook University, Cheonan 31116, Republic of KoreaDepartment of Animal Resource Science, Dankook University, Cheonan 31116, Republic of Korea
Corresponding author:  Dae-Kyung Kang , Tel: -, 
Received: 14 April 2016   • Revised: 26 May 2016   • Accepted: 26 May 2016
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Abstract

Bacterial lectins are carbohydrate-binding adhesins that recognize glycoreceptors in the gut mucus and epithelium of hosts. In this study, the contribution of lectin-like activities to adhesion of Lactobacillus mucosae LM1 and Lactobacillus johnsonii PF01, which were isolated from swine intestine, were compared to those of the commercial probiotic Lactobacillus rhamnosus GG. Both LM1 and PF01 strains have been reported to have good adhesion ability to crude intestinal mucus of pigs. To confirm this, we quantified their adhesion to porcine gastric mucin and intestinal porcine enterocytes isolated from the jejunum of piglets (IPEC-J2). In addition, we examined their carbohydrate-binding specificities by suspending bacterial cells in carbohydrate solutions prior to adhesion assays. We found that the selected carbohydrates affected the adherences of LM1 to IPEC-J2 cells and of LGG to mucin. In addition, compared to adhesion to IPEC-J2 cells, adhesion to mucin by both LM1 and LGG was characterized by enhanced specific recognition of glycoreceptor components such as galactose, mannose, and N-acetylglucosamine. Hydrophobic interactions might make a greater contribution to adhesion of PF01. A similar adhesin profile between a probiotic and a pathogen, suggest a correlation between shared pathogen–probiotic glycoreceptor recognition and the ability to exclude enteropathogens such as Escherichia coli K88 and Salmonella Typhimurium KCCM 40253. These findings extend our understanding of the mechanisms of the intestinal adhesion and pathogen-inhibition abilities of probiotic Lactobacillus strains.

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    Carbohydrate-binding specificities of potential probiotic Lactobacillus strains in porcine jejunal (IPEC-J2) cells and porcine mucin
    J. Microbiol. 2016;54(7):510-519.   Published online June 28, 2016
    DOI: https://doi.org/10.1007/s12275-016-6168-7
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