Heat-Killed <i>Saccharomyces boulardii</i> Alleviates Dextran Sulfate Sodium-Induced Ulcerative Colitis by Restoring the Intestinal Barrier, Reducing Inflammation, and Modulating the Gut Microbiota

Ulcerative colitis (UC) is a global intestinal disease, and conventional therapeutic drugs often fail to meet the needs of patients. There is an urgent need to find efficient and affordable novel biological therapies. <i>Saccharomyces boulardii</i> has been widely used in food and pharma...

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Main Authors: Yuxin Jin, Jingwei Wu, Kunlun Huang, Zhihong Liang
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Nutrients
Subjects:
Online Access:https://www.mdpi.com/2072-6643/16/5/702
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author Yuxin Jin
Jingwei Wu
Kunlun Huang
Zhihong Liang
author_facet Yuxin Jin
Jingwei Wu
Kunlun Huang
Zhihong Liang
author_sort Yuxin Jin
collection DOAJ
description Ulcerative colitis (UC) is a global intestinal disease, and conventional therapeutic drugs often fail to meet the needs of patients. There is an urgent need to find efficient and affordable novel biological therapies. <i>Saccharomyces boulardii</i> has been widely used in food and pharmaceutical research due to its anti-inflammatory properties and gut health benefits. However, there is still a relatively limited comparison and evaluation of different forms of <i>S. boulardii</i> treatment for UC. This study aimed to compare the therapeutic effects of <i>S. boulardii</i>, heat-killed <i>S. boulardii</i>, and <i>S. boulardii</i> β-glucan on UC, to explore the potential of heat-killed <i>S. boulardii</i> as a new biological therapy. The results demonstrate that all three treatments were able to restore body weight, reduce the disease activity index (DAI), inhibit splenomegaly, shorten colon length, and alleviate histopathological damage to colonic epithelial tissues in DSS-induced colitis mice. The oral administration of <i>S. boulardii</i>, heat-killed <i>S. boulardii</i>, and <i>S. boulardii</i> β-glucan also increased the levels of tight junction proteins (Occludin and ZO-1), decreased the levels of pro-inflammatory cytokines (TNF-α, IL-1β, and IL-6) in the serum, and suppressed the expressions of TNF-α, IL-1β, and IL-6 mRNA in the colon. In particular, in terms of gut microbiota, <i>S. boulardii</i>, heat-killed <i>S. boulardii</i>, and <i>S. boulardii</i> β-glucan exhibited varying degrees of modulation on DSS-induced dysbiosis. Among them, heat-killed <i>S. boulardii</i> maximally restored the composition, structure, and functionality of the intestinal microbiota to normal levels. In conclusion, heat-killed <i>S. boulardii</i> showed greater advantages over <i>S. boulardii</i> and <i>S. boulardii</i> β-glucan in the treatment of intestinal diseases, and it holds promise as an effective novel biological therapy for UC. This study is of great importance in improving the quality of life for UC patients and reducing the burden of the disease.
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spelling doaj.art-8bbe4389847542e2ab5e9ed04df9dd4a2024-03-12T16:52:16ZengMDPI AGNutrients2072-66432024-02-0116570210.3390/nu16050702Heat-Killed <i>Saccharomyces boulardii</i> Alleviates Dextran Sulfate Sodium-Induced Ulcerative Colitis by Restoring the Intestinal Barrier, Reducing Inflammation, and Modulating the Gut MicrobiotaYuxin Jin0Jingwei Wu1Kunlun Huang2Zhihong Liang3College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, ChinaUlcerative colitis (UC) is a global intestinal disease, and conventional therapeutic drugs often fail to meet the needs of patients. There is an urgent need to find efficient and affordable novel biological therapies. <i>Saccharomyces boulardii</i> has been widely used in food and pharmaceutical research due to its anti-inflammatory properties and gut health benefits. However, there is still a relatively limited comparison and evaluation of different forms of <i>S. boulardii</i> treatment for UC. This study aimed to compare the therapeutic effects of <i>S. boulardii</i>, heat-killed <i>S. boulardii</i>, and <i>S. boulardii</i> β-glucan on UC, to explore the potential of heat-killed <i>S. boulardii</i> as a new biological therapy. The results demonstrate that all three treatments were able to restore body weight, reduce the disease activity index (DAI), inhibit splenomegaly, shorten colon length, and alleviate histopathological damage to colonic epithelial tissues in DSS-induced colitis mice. The oral administration of <i>S. boulardii</i>, heat-killed <i>S. boulardii</i>, and <i>S. boulardii</i> β-glucan also increased the levels of tight junction proteins (Occludin and ZO-1), decreased the levels of pro-inflammatory cytokines (TNF-α, IL-1β, and IL-6) in the serum, and suppressed the expressions of TNF-α, IL-1β, and IL-6 mRNA in the colon. In particular, in terms of gut microbiota, <i>S. boulardii</i>, heat-killed <i>S. boulardii</i>, and <i>S. boulardii</i> β-glucan exhibited varying degrees of modulation on DSS-induced dysbiosis. Among them, heat-killed <i>S. boulardii</i> maximally restored the composition, structure, and functionality of the intestinal microbiota to normal levels. In conclusion, heat-killed <i>S. boulardii</i> showed greater advantages over <i>S. boulardii</i> and <i>S. boulardii</i> β-glucan in the treatment of intestinal diseases, and it holds promise as an effective novel biological therapy for UC. This study is of great importance in improving the quality of life for UC patients and reducing the burden of the disease.https://www.mdpi.com/2072-6643/16/5/702<i>Saccharomyces boulardii</i>probioticheat-killedpostbioticsβ-glucanprebiotics
spellingShingle Yuxin Jin
Jingwei Wu
Kunlun Huang
Zhihong Liang
Heat-Killed <i>Saccharomyces boulardii</i> Alleviates Dextran Sulfate Sodium-Induced Ulcerative Colitis by Restoring the Intestinal Barrier, Reducing Inflammation, and Modulating the Gut Microbiota
Nutrients
<i>Saccharomyces boulardii</i>
probiotic
heat-killed
postbiotics
β-glucan
prebiotics
title Heat-Killed <i>Saccharomyces boulardii</i> Alleviates Dextran Sulfate Sodium-Induced Ulcerative Colitis by Restoring the Intestinal Barrier, Reducing Inflammation, and Modulating the Gut Microbiota
title_full Heat-Killed <i>Saccharomyces boulardii</i> Alleviates Dextran Sulfate Sodium-Induced Ulcerative Colitis by Restoring the Intestinal Barrier, Reducing Inflammation, and Modulating the Gut Microbiota
title_fullStr Heat-Killed <i>Saccharomyces boulardii</i> Alleviates Dextran Sulfate Sodium-Induced Ulcerative Colitis by Restoring the Intestinal Barrier, Reducing Inflammation, and Modulating the Gut Microbiota
title_full_unstemmed Heat-Killed <i>Saccharomyces boulardii</i> Alleviates Dextran Sulfate Sodium-Induced Ulcerative Colitis by Restoring the Intestinal Barrier, Reducing Inflammation, and Modulating the Gut Microbiota
title_short Heat-Killed <i>Saccharomyces boulardii</i> Alleviates Dextran Sulfate Sodium-Induced Ulcerative Colitis by Restoring the Intestinal Barrier, Reducing Inflammation, and Modulating the Gut Microbiota
title_sort heat killed i saccharomyces boulardii i alleviates dextran sulfate sodium induced ulcerative colitis by restoring the intestinal barrier reducing inflammation and modulating the gut microbiota
topic <i>Saccharomyces boulardii</i>
probiotic
heat-killed
postbiotics
β-glucan
prebiotics
url https://www.mdpi.com/2072-6643/16/5/702
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