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Lactiplantibacillus plantarum WH021 Alleviates Lipopolysaccharide-Induced Neuroinflammation via Regulating the Intestinal Microenvironment and Protecting the Barrier Integrity

文献类型： 外文期刊

作者： He, Bao-Lin 2 ; Cui, Rui 1 ; Hu, Teng-Gen 3 ; Wu, Hong 1 ;

作者机构： 1.South China Univ Technol, Sch Food Sci & Engn, Guangdong Prov Key Lab Green Proc Nat Prod & Prod, Guangzhou 510641, Peoples R China

2.Bozhou Univ, Anhui Engn Res Ctr Dev & Applicat Funct Blended Li, Dept Biol & Food Engn, Bozhou 236800, Peoples R China

3.Guangdong Acad Agr Sci, Minist Agr & Rural Affairs, Key Lab Funct Foods, Sericultural & Agrifood Res Inst,Guangdong Key Lab, Guangzhou 510610, Peoples R China

关键词： Lactiplantibacillus plantarum WH021; neuroinflammation; microbiota-gut-brain axis; barrierintegrity; serum metabolic level

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.2； 五年影响因子：6.4 ）

ISSN： 0021-8561

年卷期： 2025 年 73 卷 23 期

页码：

收录情况： SCI

摘要： Neuroinflammation is one of the major pathological factors leading to neurodegenerative diseases (NDs). Currently, drug treatment is the main strategy for controlling NDs, but long-term drug use has many side effects. Studies have shown that probiotics can regulate neuroinflammation via the microbiota-gut-brain axis, thereby preventing and alleviating NDs. Our early studies screened several strains with antineuroinflammatory properties through the established microglia-zebrafish fast-screening model, and preliminary animal experiments demonstrated that Lactiplantibacillus plantarum WH021 has good antineuroinflammatory activity. Still, its specific effects and mechanisms need to be further explored. Therefore, this study aimed to investigate the effects of three doses of L. plantarum WH021 on behavioral disorders, brain and intestinal inflammation, and their possible mechanism in model mice with lipopolysaccharide (LPS)-induced neuroinflammation. The results showed that L. plantarum WH021 significantly improved the depression-like state caused by neuroinflammation, inhibited brain inflammation and neuronal damage, and enhanced synaptic function and blood-brain barrier integrity after 28 days of intervention in the high-dose group (109 CFU/day). In addition, pathological damage and inflammation in the colon tissue were effectively alleviated, and the function of the intestinal barrier was improved. From the perspective of gut microbiota and serum metabolites, L. plantarum WH021 was also found to regulate intestinal homeostasis and increase serum metabolic levels of neuroactive components and neurotransmitter metabolites. Ultimately, 5-hydroxytryptaminergic synapses, GABAergic synapses, and the arachidonic acid pathway were identified as potential mechanisms exerting their ability to alleviate neuroinflammation. These findings may provide a possible strategy for preventing neuroinflammation-related diseases.

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