Potential oral probiotic Lactobacillus pentosus MJM60383 inhibits Streptococcus mutans biofilm formation by inhibiting sucrose decomposition

Streptococcus mutans is known as a contributor to dental caries. In this work, Lactobacillus pentosus MJM60383 was selected for its strong antagonistic activity against S. mutans and was characterized by good oral probiotic properties including lysozyme tolerance, adhesive ability to oral cells, goo...

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Bibliographic Details
Published in:Journal of oral microbiology 2023-12, Vol.15 (1), p.2161179
Main Authors: Gu, Mingkun, Cho, Joo-Hyung, Suh, Joo-Won, Cheng, Jinhua
Format: Article
Language:English
Subjects:
Antibiotics
Bacteria
biofilm
Biofilms
Decomposition
Dental caries
Exopolysaccharides
Gene expression
Glucan
Hydrogen peroxide
Lactobacillus pentosus
Lysozyme
oral probiotics
Original
Probiotics
Streptococcus infections
Streptococcus mutans
Sucrose
sucrose decomposition
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Summary:Streptococcus mutans is known as a contributor to dental caries. In this work, Lactobacillus pentosus MJM60383 was selected for its strong antagonistic activity against S. mutans and was characterized by good oral probiotic properties including lysozyme tolerance, adhesive ability to oral cells, good aggregation (auto-aggregation, co-aggregation) ability, hydrogen peroxide production and inhibition of biofilm formation of S. mutans. L. pentosus MJM60383 also exhibited safety as a probiotic characterized by no hemolytic activity, no D-lactate production, no biogenic amine production, and susceptibility to antibiotics. Furthermore, the biofilm formation of S. mutans was also significantly inhibited by the supernatant of L. pentosus MJM60383. An anti-biofilm mechanism study revealed that sucrose decomposition and the production of water-insoluble exopolysaccharides by S. mutans were inhibited by the treatment with L. pentosus MJM60383 supernatant. Real-time PCR analysis indicated that the supernatant of L. pentosus MJM60383 significantly inhibited the mRNA expression of S. mutans glycosyltransferases, which synthesize glucan to construct biofilm architecture and mediate bacterial adherence. Our study demonstrated L. pentosus MJM60383 as a potential oral probiotic and revealed its anti-biofilm mechanism.
ISSN:2000-2297
2000-2297
DOI:10.1080/20002297.2022.2161179