Synbiotic effect of L. fermentum PC1 and Spirulina on gut health and immunity

The modulation of the gut microbiome has been of great interest as the gut microbiome affects the host metabolism, and even establishing cross-talk with the immune system. Dietary interventions using probiotics, prebiotics and their combinations (synbiotics) have proven to be beneficial for human he...

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Main Author: Sim, Edric Shao Zhe
Other Authors: Ruedl Christiane
Format: Final Year Project (FYP)
Language:English
Published: Nanyang Technological University 2021
Subjects:
Online Access:https://hdl.handle.net/10356/148544
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author Sim, Edric Shao Zhe
author2 Ruedl Christiane
author_facet Ruedl Christiane
Sim, Edric Shao Zhe
author_sort Sim, Edric Shao Zhe
collection NTU
description The modulation of the gut microbiome has been of great interest as the gut microbiome affects the host metabolism, and even establishing cross-talk with the immune system. Dietary interventions using probiotics, prebiotics and their combinations (synbiotics) have proven to be beneficial for human health. However, the mechanisms of synbiotics on the gut microbiome and immunity remains poorly characterized. Using an ex-vivo gut model supplemented with fecal samples, we hereby report that the combination of Lactobacillus fermentum PC1 and Spirulina as a synbiotic modulates the gut microbiome by promoting lactobacilli growth, exhibiting anti-microbial activity on enteric bacteria and enhancing acetic acid production. Using an in-vitro FMS-like tyrosine kinase 3 ligand (FLT3L)-stimulated bone-marrow dendritic cells (BMDCs), we also report that synbiotic differently upregulates dendritic cells (DCs) maturation and induce pro-inflammatory TNF-α, IL-6, IL-1β cytokines. Interestingly, synergism was only observed in the production of IL-1β cytokine. This might represent an alternative mechanism for synbiotic effects, other than the microbiota-driven modulation of immunity. Together, these findings successfully characterize synbiotic effects on gut health and immunity. However, the functionality of this synbiotic should be studied further in various in-vitro and in-vivo models, potentially paving way for precision application to individuals in clinical settings.
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spelling ntu-10356/1485442023-02-28T18:08:18Z Synbiotic effect of L. fermentum PC1 and Spirulina on gut health and immunity Sim, Edric Shao Zhe Ruedl Christiane School of Biological Sciences Patricia Conway Ruedl@ntu.edu.sg Science::Biological sciences The modulation of the gut microbiome has been of great interest as the gut microbiome affects the host metabolism, and even establishing cross-talk with the immune system. Dietary interventions using probiotics, prebiotics and their combinations (synbiotics) have proven to be beneficial for human health. However, the mechanisms of synbiotics on the gut microbiome and immunity remains poorly characterized. Using an ex-vivo gut model supplemented with fecal samples, we hereby report that the combination of Lactobacillus fermentum PC1 and Spirulina as a synbiotic modulates the gut microbiome by promoting lactobacilli growth, exhibiting anti-microbial activity on enteric bacteria and enhancing acetic acid production. Using an in-vitro FMS-like tyrosine kinase 3 ligand (FLT3L)-stimulated bone-marrow dendritic cells (BMDCs), we also report that synbiotic differently upregulates dendritic cells (DCs) maturation and induce pro-inflammatory TNF-α, IL-6, IL-1β cytokines. Interestingly, synergism was only observed in the production of IL-1β cytokine. This might represent an alternative mechanism for synbiotic effects, other than the microbiota-driven modulation of immunity. Together, these findings successfully characterize synbiotic effects on gut health and immunity. However, the functionality of this synbiotic should be studied further in various in-vitro and in-vivo models, potentially paving way for precision application to individuals in clinical settings. Bachelor of Science in Biological Sciences 2021-05-05T08:43:54Z 2021-05-05T08:43:54Z 2021 Final Year Project (FYP) Sim, E. S. Z. (2021). Synbiotic effect of L. fermentum PC1 and Spirulina on gut health and immunity. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/148544 https://hdl.handle.net/10356/148544 en application/pdf Nanyang Technological University
spellingShingle Science::Biological sciences
Sim, Edric Shao Zhe
Synbiotic effect of L. fermentum PC1 and Spirulina on gut health and immunity
title Synbiotic effect of L. fermentum PC1 and Spirulina on gut health and immunity
title_full Synbiotic effect of L. fermentum PC1 and Spirulina on gut health and immunity
title_fullStr Synbiotic effect of L. fermentum PC1 and Spirulina on gut health and immunity
title_full_unstemmed Synbiotic effect of L. fermentum PC1 and Spirulina on gut health and immunity
title_short Synbiotic effect of L. fermentum PC1 and Spirulina on gut health and immunity
title_sort synbiotic effect of l fermentum pc1 and spirulina on gut health and immunity
topic Science::Biological sciences
url https://hdl.handle.net/10356/148544
work_keys_str_mv AT simedricshaozhe synbioticeffectoflfermentumpc1andspirulinaonguthealthandimmunity