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Abstract Title:

Lactobacillus rhamnosus could inhibit Porphyromonas gingivalis derived CXCL8 attenuation.

Abstract Source:

J Appl Oral Sci. 2016 Jan-Feb;24(1):67-75. PMID: 27008259

Abstract Author(s):

Ayşegül Mendi, Sevil Köse, Duygu Uçkan, Gülçin Akca, Derviş Yilmaz, Levent Aral, Sibel Elif Gültekin, Tamer Eroğlu, Emine Kiliç, Sina Uçkan

Article Affiliation:

Ayşegül Mendi

Abstract:

UNLABELLED: An increasing body of evidence suggests that the use of probiotic bacteria is a promising intervention approach for the treatment of inflammatory diseases with a polymicrobial etiology. P. gingivalis has been noted to have a different way of interacting with the innate immune response of the host compared to other pathogenic bacteria, which is a recognized feature that inhibits CXCL8 expression.

OBJECTIVE: The aim of the study was to determine if P. gingivalis infection modulates the inflammatory response of gingival stromal stem cells (G-MSSCs), including the release of CXCL8, and the expression of TLRs and if immunomodulatory L. rhamnosus ATCC9595 could prevent CXCL8 inhibition in experimental inflammation.

MATERIAL AND METHODS: G-MSSCs were pretreated with L. rhamnosus ATCC9595 and then stimulated with P. gingivalis ATCC33277. CXCL8 and IL-10 levels were investigated with ELISA and the TLR-4 and 2 were determined through flow cytometer analysis.

RESULTS: CXCL8 was suppressed by P. gingivalis and L. rhamnosus ATCC9595, whereas incubation with both strains did not abolish CXCL8. L. rhamnosus ATCC9595 scaled down the expression of TLR4 and induced TLR2 expression when exposed to P. gingivalis stimulation (p<0.01).

CONCLUSIONS: These findings provide evidence that L. rhamnosus ATCC9595 can modulate the inflammatory signals and could introduce P. gingivalis to immune systems by inducing CXCL8 secretion.

Study Type : In Vitro Study

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