{"title":"Beyond the oral niche: <i>Lacticaseibacillus paracasei</i> LPC-37 unlocks oral-gastric-intestinal crosstalk for butyric acid-dependent oral inflammation alleviation.","authors":"Yonglu Li, Xin Gao, Lihan Jiang, Hongdi Song, Chen Yang, Cong Wu, Yapeng Li, Shihai Yan, Ping Li, Qing Gu","doi":"10.1039/d5fo02279g","DOIUrl":null,"url":null,"abstract":"<p><p>Oral inflammatory diseases are prevalent yet poorly understood in the context of systemic microbiota interactions along the oral-gastric-intestinal axis. Current interventions primarily target direct inflammation inhibition <i>in situ</i>, leaving the cross-compartmental microbial mechanisms underlying oral inflammation underexplored. Moreover, the therapeutic potential of probiotics in modulating multi-site microbiota dynamics to alleviate oral inflammation remains limited by insufficient mechanistic insights. Using an acetic acid-induced oral inflammatory mouse model, this study systematically tracked alterations in the digestive microbiota across distinct gastrointestinal compartments during oral inflammation progression, thereby elucidating the microbiota-driven mechanisms of oral inflammation through both holistic and site-specific analyses of the digestive tract. Additionally, the potent anti-inflammatory efficacy of the commercially utilized probiotic <i>Lacticaseibacillus paracasei</i> LPC-37 was evaluated. The anti-inflammatory mechanism of LPC-37 was deciphered through microbiota structural analysis, gastrointestinal survival assessment, co-culture characterization, and short-chain fatty acid profiling. LPC-37, exhibiting robust gastrointestinal resistance, demonstrated enhanced intestinal colonization. This promoted a synergistic interaction with same-family bacteria to elevate <i>Ligilactobacillus</i> abundance, enabling antagonism against the marker microbe <i>Aerococcus</i> while upregulating <i>Clostridium saccharolyticum</i> WM1, a butyrate-producing strain. These microbial shifts drove butyrate biosynthesis, ultimately alleviating oral inflammation. The findings unravel a systemic microbiota interplay along the oral-gastric-intestinal axis and propose a novel probiotic-based strategy for anti-oral-inflammatory therapy.</p>","PeriodicalId":77,"journal":{"name":"Food & Function","volume":" ","pages":""},"PeriodicalIF":5.4000,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Food & Function","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1039/d5fo02279g","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Oral inflammatory diseases are prevalent yet poorly understood in the context of systemic microbiota interactions along the oral-gastric-intestinal axis. Current interventions primarily target direct inflammation inhibition in situ, leaving the cross-compartmental microbial mechanisms underlying oral inflammation underexplored. Moreover, the therapeutic potential of probiotics in modulating multi-site microbiota dynamics to alleviate oral inflammation remains limited by insufficient mechanistic insights. Using an acetic acid-induced oral inflammatory mouse model, this study systematically tracked alterations in the digestive microbiota across distinct gastrointestinal compartments during oral inflammation progression, thereby elucidating the microbiota-driven mechanisms of oral inflammation through both holistic and site-specific analyses of the digestive tract. Additionally, the potent anti-inflammatory efficacy of the commercially utilized probiotic Lacticaseibacillus paracasei LPC-37 was evaluated. The anti-inflammatory mechanism of LPC-37 was deciphered through microbiota structural analysis, gastrointestinal survival assessment, co-culture characterization, and short-chain fatty acid profiling. LPC-37, exhibiting robust gastrointestinal resistance, demonstrated enhanced intestinal colonization. This promoted a synergistic interaction with same-family bacteria to elevate Ligilactobacillus abundance, enabling antagonism against the marker microbe Aerococcus while upregulating Clostridium saccharolyticum WM1, a butyrate-producing strain. These microbial shifts drove butyrate biosynthesis, ultimately alleviating oral inflammation. The findings unravel a systemic microbiota interplay along the oral-gastric-intestinal axis and propose a novel probiotic-based strategy for anti-oral-inflammatory therapy.
期刊介绍:
Food & Function provides a unique venue for physicists, chemists, biochemists, nutritionists and other food scientists to publish work at the interface of the chemistry, physics and biology of food. The journal focuses on food and the functions of food in relation to health.