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Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 J+Appl+Microbiol 2018 ; 125 (6): 1881-9 Nephropedia Template TP
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Bifidobacterium animalis ssp lactis Bb12 induces IL-10 through cell membrane-associated components via TLR2 in swine #MMPMID30106205
Arenas-Padilla M; Duarte-Gutierrez JL; Mata-Haro V
J Appl Microbiol 2018[Aug]; 125 (6): 1881-9 PMID30106205show ga
AIM: To investigate the role of Toll-like receptor 2 (TLR2) in interleukin-10 (IL-10) production induced by Bifidobacterium animalis ssp. lactis Bb12 (Bb12) in swine immune cells. METHODS AND RESULTS: Blood-monocytes and cells from mesenteric lymph nodes were obtained from pigs and cultured with live Bb12 for 4 and 12 h. Transcript levels of IL-10 and TLR2 were analysed. Furthermore, TLR2 was blocked to determine its participation in IL-10 production. TLR2 blockade was achieved with neutralizing antibodies, followed by stimulation with Bb12. Bifidobacteria induced IL-10 production in both swine monocytes and mesenteric cells. Monocytes with TLR2 blockade had a decrease in IL-10 transcripts, while mesenteric cells did not. Bacterial cell wall components were responsible for Bb12-induced IL-10 production since no IL-10 was detected in the culture supernatant. CONCLUSIONS: We demonstrated that IL-10 production is largely mediated through the recognition of Bb12 structures by TLR2, as bacterial metabolites in the culture supernatant failed to induce IL-10 expression. SIGNIFICANCE AND IMPACT OF THE STUDY: The present study provides evidence for the potential use of Bb12 in the swine industry; these bacteria can also be used as additional method to treat intestinal inflammation and enhance intestinal health in pigs.