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Updated: Oct 5, 2025

Evaluation of the Efficacy of Organic Peroxyacids for Eradicating Dairy Biofilms Using an Approach Combining Static and Dynamic Methods
Published on: December 9, 2022
Whey fermented by Enterococcus faecalis M157 exhibits antiinflammatory and antibiofilm activities against oral
Dahyun Song1, Han Bin Lee1, Geun-Bae Kim2
1Department of Food Science and Biotechnology, College of Life Science and Biotechnology, Dongguk University-Seoul, Goyang 10326, Republic of Korea.
Abstract:
The aim of the present study was to investigate the antiinflammatory and antibiofilm effects of whey fermented by Enterococcus faecalis M157 (M157-W) against oral pathogenic bacteria. The M157-W significantly inhibited IL-1β, IL-6, and nitric oxide induced by the lipopolysaccharide of Porphyromonas gingivalis in RAW 264.7 cells. The M157-W also inhibited the production of IL-1β and IL-8 in human periodontal ligament cells. Treatment with M157-W suppressed the phosphorylation of mitogen-activated protein kinases as well as the activation of nuclear factor-κB in RAW 264.7 cells stimulated by P. gingivalis lipopolysaccharide. Furthermore, M157-W dose-dependently inhibited Streptococcus mutans biofilm, whereas unfermented whey did not inhibit the biofilm. Treatment with M157-W significantly suppressed gtfB, gtfC, and gtfD gene expression in S. mutans compared with the control (0 μg/mL), indicating that M157-W inhibits S. mutans biofilm formation by reducing the synthesis of extracellular polymeric substances. Collectively, these results suggest that M157-W has antiinflammatory and antibiofilm activities against oral pathogenic bacteria.
Insights
Fermented whey (M157-W) exhibits potent anti-inflammatory and anti-biofilm properties against oral pathogens like Porphyromonas gingivalis and Streptococcus mutans. This study demonstrates its potential for developing novel oral health therapeutics.
Area of Science:
- Oral Microbiology
- Immunology
- Biochemistry
Background:
- Oral pathogenic bacteria contribute to inflammatory diseases like periodontitis.
- Bacterial biofilms, particularly Streptococcus mutans, are central to dental caries.
- Enterococcus faecalis fermentation of whey may yield bioactive compounds.
Purpose of the Study:
- To evaluate the anti-inflammatory and anti-biofilm effects of Enterococcus faecalis M157-fermented whey (M157-W).
- To assess M157-W's impact on inflammatory mediators and signaling pathways.
- To investigate M157-W's efficacy against Streptococcus mutans biofilm formation.
Main Methods:
- Assessed M157-W's inhibition of lipopolysaccharide (LPS)-induced inflammatory cytokines (IL-1β, IL-6, nitric oxide) in RAW 264.7 cells.
- Evaluated M157-W's effect on IL-1β and IL-8 production in human periodontal ligament cells.
- Analyzed M157-W's impact on MAPK and NF-κB signaling pathways.
- Quantified M157-W's dose-dependent inhibition of Streptococcus mutans biofilm formation and expression of biofilm-related genes (gtfB, gtfC, gtfD).
Main Results:
- M157-W significantly inhibited LPS-induced IL-1β, IL-6, and nitric oxide in RAW 264.7 cells.
- M157-W reduced IL-1β and IL-8 production in human periodontal ligament cells.
- M157-W suppressed MAPK phosphorylation and NF-κB activation.
- M157-W dose-dependently inhibited Streptococcus mutans biofilm formation and suppressed gtfB, gtfC, and gtfD gene expression.
Conclusions:
- M157-W possesses significant anti-inflammatory activity against oral pathogens.
- M157-W effectively inhibits Streptococcus mutans biofilm formation by reducing extracellular polymeric substance synthesis.
- M157-W demonstrates potential as a therapeutic agent for oral inflammatory conditions and biofilm-related diseases.
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