Alleviation of DSS-induced colitis by Meconopsis polysaccharides correlated with reduced PI3K/AKT signaling and gut microbiome diversity

IntroductionInflammatory bowel disease (IBD) is a recurrent gastrointestinal disorder that significantly impacts patients’ quality of life globally. This study focuses on the polysaccharides (MP) extracted from Meconopsis integrifolia, to investigate its role in alleviating DSS (dextran sulfate sodi...

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Main Authors: Jun Dai, Weidong Wang, Fangfang He, Yujuan Wang, Denglang Zou
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-02-01
Series:Frontiers in Pharmacology
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Online Access:https://www.frontiersin.org/articles/10.3389/fphar.2025.1459668/full
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author Jun Dai
Weidong Wang
Fangfang He
Yujuan Wang
Denglang Zou
author_facet Jun Dai
Weidong Wang
Fangfang He
Yujuan Wang
Denglang Zou
author_sort Jun Dai
collection DOAJ
description IntroductionInflammatory bowel disease (IBD) is a recurrent gastrointestinal disorder that significantly impacts patients’ quality of life globally. This study focuses on the polysaccharides (MP) extracted from Meconopsis integrifolia, to investigate its role in alleviating DSS (dextran sulfate sodium)-induced colitis in mice.MethodsThe study commenced with a comprehensive chemical characterization of Meconopsis polysaccharides. Subsequently, the colitis-alleviating activity of MP was validated through in vivo experiments.ResultsThe results revealed that MP is primarily composed of ten monosaccharides, exhibits good thermal stability, and has a relatively uniform molecular weight distribution. In vivo experiments demonstrated that MP significantly mitigated DSS-induced weight loss, increased DAI, colon shortening, and tissue damage in mice. Furthermore, MP reduced the levels of inflammatory cytokines such as IL-1β, TNF-α, and IL-6 in serum. Mechanistically, MP exerted its anti-inflammatory effects by inhibiting the activation of the PI3K/AKT signaling pathway. Additionally, MP promoted gut microbiota diversity and regulated SCFA concentrations, contributing to an improved intestinal microenvironment and alleviation of colitis symptoms.DiscussionOur findings highlight the superior effectiveness of Meconopsis polysaccharides in alleviating DSS-induced colitis and open new avenues for targeted therapeutic strategies in the treatment of IBD.
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publisher Frontiers Media S.A.
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spelling doaj-art-f340d511fbe34e9ea969ae103939bc052025-02-12T07:26:34ZengFrontiers Media S.A.Frontiers in Pharmacology1663-98122025-02-011610.3389/fphar.2025.14596681459668Alleviation of DSS-induced colitis by Meconopsis polysaccharides correlated with reduced PI3K/AKT signaling and gut microbiome diversityJun Dai0Weidong Wang1Fangfang He2Yujuan Wang3Denglang Zou4Engineering technology research center of Plant Cell Engineering, West AnHui University, Lu’an, ChinaCollege of Pharmacy, Hubei University of Chinese Medicine, Wuhan, ChinaCollege of Pharmacy, Hubei University of Chinese Medicine, Wuhan, ChinaEngineering technology research center of Plant Cell Engineering, West AnHui University, Lu’an, ChinaCollege of Pharmacy, Hubei University of Chinese Medicine, Wuhan, ChinaIntroductionInflammatory bowel disease (IBD) is a recurrent gastrointestinal disorder that significantly impacts patients’ quality of life globally. This study focuses on the polysaccharides (MP) extracted from Meconopsis integrifolia, to investigate its role in alleviating DSS (dextran sulfate sodium)-induced colitis in mice.MethodsThe study commenced with a comprehensive chemical characterization of Meconopsis polysaccharides. Subsequently, the colitis-alleviating activity of MP was validated through in vivo experiments.ResultsThe results revealed that MP is primarily composed of ten monosaccharides, exhibits good thermal stability, and has a relatively uniform molecular weight distribution. In vivo experiments demonstrated that MP significantly mitigated DSS-induced weight loss, increased DAI, colon shortening, and tissue damage in mice. Furthermore, MP reduced the levels of inflammatory cytokines such as IL-1β, TNF-α, and IL-6 in serum. Mechanistically, MP exerted its anti-inflammatory effects by inhibiting the activation of the PI3K/AKT signaling pathway. Additionally, MP promoted gut microbiota diversity and regulated SCFA concentrations, contributing to an improved intestinal microenvironment and alleviation of colitis symptoms.DiscussionOur findings highlight the superior effectiveness of Meconopsis polysaccharides in alleviating DSS-induced colitis and open new avenues for targeted therapeutic strategies in the treatment of IBD.https://www.frontiersin.org/articles/10.3389/fphar.2025.1459668/fullMeconopsis polysaccharidesDSS-induced colitisPI3K/Akt signaling pathwaygut microbiome diversityshort-chain fatty acids
spellingShingle Jun Dai
Weidong Wang
Fangfang He
Yujuan Wang
Denglang Zou
Alleviation of DSS-induced colitis by Meconopsis polysaccharides correlated with reduced PI3K/AKT signaling and gut microbiome diversity
Frontiers in Pharmacology
Meconopsis polysaccharides
DSS-induced colitis
PI3K/Akt signaling pathway
gut microbiome diversity
short-chain fatty acids
title Alleviation of DSS-induced colitis by Meconopsis polysaccharides correlated with reduced PI3K/AKT signaling and gut microbiome diversity
title_full Alleviation of DSS-induced colitis by Meconopsis polysaccharides correlated with reduced PI3K/AKT signaling and gut microbiome diversity
title_fullStr Alleviation of DSS-induced colitis by Meconopsis polysaccharides correlated with reduced PI3K/AKT signaling and gut microbiome diversity
title_full_unstemmed Alleviation of DSS-induced colitis by Meconopsis polysaccharides correlated with reduced PI3K/AKT signaling and gut microbiome diversity
title_short Alleviation of DSS-induced colitis by Meconopsis polysaccharides correlated with reduced PI3K/AKT signaling and gut microbiome diversity
title_sort alleviation of dss induced colitis by meconopsis polysaccharides correlated with reduced pi3k akt signaling and gut microbiome diversity
topic Meconopsis polysaccharides
DSS-induced colitis
PI3K/Akt signaling pathway
gut microbiome diversity
short-chain fatty acids
url https://www.frontiersin.org/articles/10.3389/fphar.2025.1459668/full
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