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Internalin AB-expressing recombinant Lactobacillus casei protects Caco-2 cells from Listeria monocytogenes-induced damages under simulated intestinal conditions
- Source :
- PLoS ONE, Vol 14, Iss 7, p e0220321 (2019), PLoS ONE
- Publication Year :
- 2019
- Publisher :
- Public Library of Science (PLoS), 2019.
-
Abstract
- BackgroundListeria monocytogenes is an intracellular foodborne pathogen that employs a number of strategies to survive challenging gastrointestinal conditions. It proliferates in the gut and subsequently causes listeriosis in high-risk individuals. Therefore, inhibition of its adherence to the intestinal receptors is crucial in controlling its infection. In this study, the effect of our previously developed recombinant Lactobacillus casei strain expressing invasion protein, Internalin AB of L. monocytogenes (LbcInlAB) on epithelial infection processes of the latter under simulated intestinal conditions was investigated.Materials and methodsThe confluent Caco-2 cell monolayer was pre-exposed to different L. casei strains at a multiplicity of exposure (MOE) of 10 for various periods before infection with L. monocytogenes at a multiplicity of infection (MOI) of 10 under simulated intestinal conditions. Subsequently, L. monocytogenes adhesion, invasion, and translocation, cytotoxicity and impact on tight junction integrity of the Caco-2 cells were analyzed.ResultsUnder the simulated gastrointestinal condition, LbcInlAB showed a significant increase (pConclusionThe recombinant L. casei expressing InlAB shows potential for use as a prophylactic intervention strategy for targeted control of L. monocytogenes during the intestinal phase of infection.
- Subjects :
- Cell Lines
Cytotoxicity
Cell Culture Techniques
medicine.disease_cause
Pathology and Laboratory Medicine
Toxicology
Bacterial Adhesion
Multiplicity of infection
Lactobacillus
Medicine and Health Sciences
Listeriosis
0303 health sciences
Multidisciplinary
biology
Tight junction
Chemistry
Recombinant Proteins
Bacterial Pathogens
Lacticaseibacillus casei
Medical Microbiology
Physical Sciences
Medicine
Biological Cultures
Pathogens
Anatomy
Junctional Complexes
Research Article
Lactobacillus casei
Cell Physiology
Science
Materials Science
Material Properties
Research and Analysis Methods
Microbiology
Permeability
Tight Junctions
03 medical and health sciences
Listeria monocytogenes
Bacterial Proteins
medicine
Humans
Internalin
Microbial Pathogens
030304 developmental biology
Bacteria
030306 microbiology
Probiotics
Gut Bacteria
Organisms
Membrane Proteins
Biology and Life Sciences
Cell Biology
biology.organism_classification
Listeria Monocytogenes
Gastrointestinal Tract
Intestinal Diseases
Caco-2
Cell culture
Caco-2 Cells
Digestive System
Subjects
Details
- Language :
- English
- ISSN :
- 19326203
- Volume :
- 14
- Issue :
- 7
- Database :
- OpenAIRE
- Journal :
- PLoS ONE
- Accession number :
- edsair.doi.dedup.....5baa17fe0a83d0c5373f38dcb3837c6b