Journal
INTERNATIONAL MICROBIOLOGY
Volume -, Issue -, Pages -Publisher
SPRINGER
DOI: 10.1007/s10123-023-00347-z
Keywords
Biofilm; Helicobacter pylori; Probiotic; Bacillus; Enterococcus
Categories
Ask authors/readers for more resources
This study found that two recently isolated probiotic strains, Bacillus sp. 1630F and Enterococcus sp. 7C37, have the ability to form biofilm and combat H. pylori biofilm formation. Compared to reference probiotics, Lactobacillus casei and Bifidobacterium bifidum, Bacillus and Enterococcus strains showed higher biofilm rates. They were also more effective in inhibiting H. pylori biofilm formation on polystyrene and AGS cells. Bacillus and Enterococcus strains achieved inhibition by promoting the expression of luxS and decreasing the expression of ropD.
The prevention of biofilm formation plays a pivotal role in managing Helicobacter pylori inside the body and the environment. This study showed in vitro potentials of two recently isolated probiotic strains, Bacillus sp. 1630F and Enterococcus sp. 7C37, to form biofilm and combat H. pylori attachment to the abiotic and biotic surfaces. Lactobacillus casei and Bifidobacterium bifidum were used as the reference probiotics. The biofilm rates were the highest in the solid-liquid interface for Lactobacillus and Bifidobacterium and the air-liquid interface for Bacillus and Enterococcus. The highest tolerances to the environmental conditions were observed during the biofilm formations of Enterococcus and Bifidobacterium (pH), Enterococcus and Bacillus (bile), and Bifidobacterium and Lactobacillus (NaCl) on the polystyrene and glass substratum, respectively. Biofilms occurred more quickly by Bacillus and Enterococcus strains than reference strains on the polystyrene and glass substratum, respectively. Enterococcus (competition) and Bacillus (exclusion) achieved the most inhibition of H. pylori biofilm formations on the polystyrene and AGS cells, respectively. Expression of luxS was promoted by Bacillus (exclusion, 3.2 fold) and Enterococcus (competition, 2.0 fold). Expression of ropD was decreased when H. pylori biofilm was excluded by Bacillus (0.4 fold) and Enterococcus (0.2 fold) cells. This study demonstrated the ability of Bacillus and Enterococcus probiotic bacteria to form biofilm and combat H. pylori biofilm formation.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available