Characterization of Lactobacillus fermentum UCO-979C, a probiotic strain with a potent anti-Helicobacter pylori activity
Electron. j. biotechnol
;
25: 75-83, ene. 2017. tab, graf, ilus
Article
in English
| LILACS
| ID: biblio-1008594
ABSTRACT
Background:
Helicobacter pylori is considered as the main risk factor in the development of gastric cancer. In the present study, we performed a detailed characterization of the probiotic properties and the anti-H. pylori activity of a previously isolated lactobacillus strain Lactobacillus fermentum UCO-979C obtained from human gut.Results:
The strain tolerated pH 3.0; grew in the presence of 2% bile salts; produced lactic acid and hydrogen peroxide; aggregated in saline solution; showed high hydrophobicity; showed high adherence to glass; Caco-2 and gastric adenocarcinoma human cells (AGS) cells; showed an efficient colonization in Mongolian Gerbils; and potently inhibited the growth and urease activity of H. pylori strains. L. fermentum UCO-979C significantly inhibited H. pylori-induced IL-8 production in AGS cells and reduced the viability of H. pylori. With regard to innocuousness, the strain UCO-979C was susceptible to several antibiotics and did not produce histamine or beta-haemolysis in blood agar containing red blood cells from various origins.Conclusion:
The results demonstrated that L. fermentum UCO-979C is a very good candidate as a probiotic for the protection of humans against H. pylori infections.
Full text:
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Index:
LILACS (Americas)
Main subject:
Helicobacter pylori
/
Helicobacter Infections
/
Probiotics
/
Limosilactobacillus fermentum
/
Anti-Bacterial Agents
Type of study:
Prognostic study
/
Risk factors
Limits:
Animals
/
Humans
Language:
English
Journal:
Electron. j. biotechnol
Journal subject:
Biotechnology
Year:
2017
Type:
Article
/
Project document
Affiliation country:
Argentina
/
Chile
/
United kingdom
Institution/Affiliation country:
Centro de Referencia para Lactobacilos (CERELA-CONICET)/AR
/
Kingston University/GB
/
Universidad de Concepción/CL
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