Cell Proteins Obtained by Peptic Shaving of Two Phenotypically Different Strains of As a Source of Anti-Inflammatory Peptides
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, a food grade bacterium, is extensively used in the manufacture of fermented products such as yogurt and cheeses. It has been shown that strains exhibited varying anti-inflammatory activities in vitro. Our previous study displayed that this activity could be partially due to peptide(s) generated by trypsin hydrolysis of the surface proteins of LMD-9. Surface protease PrtS could be the source of these peptides during gastrointestinal digestion. Therefore, peptide hydrolysates were obtained by shaving two phenotypically distinct strains of (LMD-9 PrtS and CNRZ-21N PrtS) with pepsin, a gastric protease, followed or not by trypsinolysis. The peptide hydrolysates of both strains exhibited anti-inflammatory action through the modulation of pro-inflammatory mediators in LPS-stimulated THP-1 macrophages (COX-2, Pro-IL-1β, IL-1β, and IL-8) and LPS-stimulated HT-29 cells (IL-8). Therefore, peptides released from either PrtS or PrtS strains in the gastrointestinal tract during digestion of a product containing this bacterium may display anti-inflammatory effects and reduce the risk of inflammation-related chronic diseases.
: A Source of Postbiotics Displaying Anti-Inflammatory Effects in THP 1 Macrophages.
Allouche R, Hafeez Z, Dary-Mourot A, Genay M, Miclo L Molecules. 2024; 29(7).
PMID: 38611831 PMC: 11013757. DOI: 10.3390/molecules29071552.