Lactobacillus fermentum IM12 attenuates inflammation in mice by inhibiting NF-κB-STAT3 signalling pathway

Beneficial Microbes
S-M LimD-H Kim

Abstract

In the present study, we isolated Lactobacillus fermentum IM12 from human gut microbiota, which strongly inhibited interleukin (IL)-6 expression and STAT3 activation in lipopolysaccharide (LPS)-stimulated murine peritoneal macrophages, and examined its anti-inflammatory effect in mice with carrageenan-induced hind-paw oedema (CIE) or 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis (TIC). Oral administration of IM12 (0.2×10(9), 1×10(9) or 5×10(9) cfu/mouse, once a day for 3 days) in mice with CIE significantly suppressed the increase of oedema volume and thickness, as well as myeloperoxidase activity and IL-6, IL-17, NO, and prostaglandin E2 levels in the carrageenan-stimulated paw. Treatment with IM12 (1×10(9) cfu/mouse, once a day for 3 days) in mice with TIC significantly suppressed colon shortening, and myeloperoxidase activity and IL-6 and IL-17 levels. Treatment with IM12 in mice with CIE or TIC also suppressed the expression of inducible NO synthase (iNOS) and cyclooxygenase (COX)-2, as well as activation of nuclear factor kappa beta (NF-κB) and signal transducer and activator of transcription 3 (STAT3). Furthermore, IM12 significantly inhibited the expression of iNOS, and COX-2, as well as activation of NF-κB ...Continue Reading

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Citations

Nov 16, 2019·Critical Reviews in Food Science and Nutrition·Karim NaghmouchiDjamel Drider
Oct 19, 2019·Microbiology and Immunology·Se-Eun Jang, Sung-Won Min
Mar 29, 2020·Nutrients·Henna-Maria UusitupaJohanna Maukonen
Nov 10, 2020·Cytokine & Growth Factor Reviews·Angélica VincenziClaucia Fernanda Volken de Souza

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