{"title":"Lactobacilli Have an Opposite Effect on the Resistance to Oxidative Damage of HPV-Infected Compared with Uninfected Vaginal Epithelial Cells.","authors":"Andrey Sgibnev, Elena Kremleva","doi":"10.1007/s12602-024-10317-0","DOIUrl":"10.1007/s12602-024-10317-0","url":null,"abstract":"<p><p>To study how indigenous or probiotic-introduced lactobacilli affect the sensitivity (estimated as the proportion of surviving, apoptotic, and nonapoptotic deaths) of vaginal epithelial cells obtained from HPV-negative and HPV-positive patients to oxidative damage. The tendency to resist oxidative damage in vaginal epithelial cells of 147 HPV-positive and 59 HPV-negative patients with physiological or suboptimal levels of Lactobacillus was evaluated. Adaptation of cell to curb the oxidative damage in 146 HPV positive and 41 HPV negative with probiotic (Lacticaseibacillus rhamnosus Lcr35) supplementation and without was studied. Resistance of epithelial cells to damage was measured by the ratio of surviving, apoptotic, and dead nonapoptotic cells after three times of hydrogen peroxide treatment using a kit containing annexin V-fluorescein in combination with propidium iodide. If uninfected epithelial cells were in an environment with a physiological level of lactobacilli for significant duration, then these cells were more resilient to damage, and if they lost their viability, it was mainly due to apoptosis. Probiotic therapy also increased the resistance of uninfected epithelial cells to damage. HPV-infected epithelial cells were less resistant to damage at normal levels of lactobacilli compared with Lactobacillus deficiency. In HPV-positive patients with Lactobacillus deficiency, probiotic therapy decreased the resistance of infected epithelial cells to damage; the increase in cell death was mainly due to apoptosis.</p>","PeriodicalId":20506,"journal":{"name":"Probiotics and Antimicrobial Proteins","volume":" ","pages":"3538-3545"},"PeriodicalIF":4.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141470335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Svetoslav D Todorov, John Tagg, Ammar Algburi, Santosh Kumar Tiwari, Igor Popov, Richard Weeks, Oleg V Mitrokhin, Ilya A Kudryashov, Denis A Kraskevich, Michael L Chikindas
{"title":"The Hygienic Significance of Microbiota and Probiotics for Human Wellbeing.","authors":"Svetoslav D Todorov, John Tagg, Ammar Algburi, Santosh Kumar Tiwari, Igor Popov, Richard Weeks, Oleg V Mitrokhin, Ilya A Kudryashov, Denis A Kraskevich, Michael L Chikindas","doi":"10.1007/s12602-024-10419-9","DOIUrl":"10.1007/s12602-024-10419-9","url":null,"abstract":"<p><p>The human body can be viewed as a combination of ecological niches inhabited by trillions of bacteria, viruses, fungi, and parasites, all united by the microbiota concept. Human health largely depends on the nature of these relationships and how they are built and maintained. However, personal hygiene practices have historically been focused on the wholesale elimination of pathogens and \"hygiene-challenging microorganisms\" without considering the collateral damage to beneficial and commensal species. The microbiota can vary significantly in terms of the qualitative and quantitative composition both between different people and within one person during life, and the influence of various environmental factors, including age, nutrition, bad habits, genetic factors, physical activity, medication, and hygienic practices, facilitates these changes. Disturbance of the microbiota is a predisposing factor for the development of diseases and also greatly influences the course and severity of potential complications. Therefore, studying the composition of the microbiota of the different body systems and its appropriate correction is an urgent problem in the modern world. The application of personal hygiene products or probiotics must not compromise health through disruption of the healthy microbiota. Where changes in the composition or metabolic functions of the microbiome may occur, they must be carefully evaluated to ensure that essential biological functions are unaffected. As such, the purpose of this review is to consider the microbiota of each of the \"ecological niches\" of the human body and highlight the importance of the microbiota in maintaining a healthy body as well as the possibility of its modulation through the use of probiotics for the prevention and treatment of certain human diseases.</p>","PeriodicalId":20506,"journal":{"name":"Probiotics and Antimicrobial Proteins","volume":" ","pages":"2690-2720"},"PeriodicalIF":4.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142838822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Recent Advancements in Harnessing Lactic Acid Bacterial Metabolites for Fruits and Vegetables Preservation.","authors":"Vaishnavi Pratha Gajendran, Subhashini Rajamani","doi":"10.1007/s12602-024-10392-3","DOIUrl":"10.1007/s12602-024-10392-3","url":null,"abstract":"<p><p>Postharvest losses in fruits and vegetables exert substantial economic and environmental repercussions. Chemical interventions are being widely utilized for the past six decades which may lead to significant health complications. Bioprotection of fruits and vegetables is the need of the hour in which use of lactic acid bacteria (LAB) with GRAS status predominantly stands out. Incorporation of LAB in postharvest fruits and vegetables suppresses the growth of spoilage organisms by synthesizing various antimicrobial compounds such as bacteriocins, organic acids, hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), exopolysaccharides (EPS), and BLIS. For example, Pediococcus acidilactici, Lactobacillus plantarum, and Limosilactobacillus fermentum convert natural sugars in fruits and vegetables to lactic acid and create an acidic environment that do not favour spoilage organisms. LAB can improve the bioavailability of vitamins and minerals and enrich the phenolic profile and bioactivity components. LAB has remarkable physiological characteristics like resistance towards bacteriophage, proteolytic activity, and polysaccharide production which adds to the safety of foods. They modify the sensory properties and preserve the nutritional quality of fruits and vegetables. They can also perform therapeutic role in the intestinal tract as they tolerate low pH, high salt concentration. Thus application of LAB, whether independently or in conjunction with stabilizing agents as edible coatings, is regarded as an exceptionally promising methodology for ensuring safer consumption of fruits and vegetables. This review addresses the most recent research findings that harness the antagonistic property of lactic acid bacterial metabolites, formulations and coatings containing their bioactive compounds for extended shelf life of fruits and vegetables.</p>","PeriodicalId":20506,"journal":{"name":"Probiotics and Antimicrobial Proteins","volume":" ","pages":"2673-2689"},"PeriodicalIF":4.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142605523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
YiNing Dong, Jennifer Ronholm, Ismail Fliss, Salwa Karboune
{"title":"Screening of Lactic Acid Bacteria Strains for Potential Sourdough and Bread Applications: Enzyme Expression and Exopolysaccharide Production.","authors":"YiNing Dong, Jennifer Ronholm, Ismail Fliss, Salwa Karboune","doi":"10.1007/s12602-024-10270-y","DOIUrl":"10.1007/s12602-024-10270-y","url":null,"abstract":"<p><p>Twenty-eight strains of lactic acid bacteria (LAB) were characterized for the ability to express enzymes of interest (including protease, xylanase, α-amylase, laccase, and glucose oxidase) as well as the ability to produce exopolysaccharide (EPS). The screening of enzyme capability for all LAB strains proceeded in a progressive 3-stage manner that helps to profile the efficiency of LAB strains in expressing chosen enzymes (Stage 1), highlights the strains with affinity for flour as the substrate (Stage 2), and discerns strains that can adapt well in a simulated starter environment (Stage 3). The theoretical ability of LAB to express these enzymes was also assessed using Basic Local Alignment Search Tool (BLAST) analysis to identify the underlying genes in the whole genome sequence. By consolidating both experimental data and information obtained from BLAST, three LAB strains were deemed optimal in expressing enzymes, namely, Lb. delbrueckii subsp. bulgaricus (RBL 52), Lb. rhamnosus (RBL 102), and Lb. plantarum (ATCC 10241). Meanwhile, EPS-producing capabilities were observed for 10 out of 28 LAB strains, among which, Lactococcus lactis subsp. diacetylactis (RBL 37) had the highest total EPS yield (274.15 mg polysaccharide/L culture) and produced 46.2% polysaccharide with a molecular mass of more than 100 kDa.</p>","PeriodicalId":20506,"journal":{"name":"Probiotics and Antimicrobial Proteins","volume":" ","pages":"3211-3233"},"PeriodicalIF":4.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140909115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Patrick Othuke Akpoghelie, Great Iruoghene Edo, Alice Njolke Mafe, Endurance Fegor Isoje, Ufuoma Augustina Igbuku, Ali B M Ali, Emad Yousif, Joseph Oghenewogaga Owheruo, Splendour Oberhiri Oberhiri, Arthur Efeoghene Athan Essaghah, Dina S Ahmed, Huzaifa Umar, Ahmed A Alamiery
{"title":"Food, Health, and Environmental Impact of Lactic Acid Bacteria: The Superbacteria for Posterity.","authors":"Patrick Othuke Akpoghelie, Great Iruoghene Edo, Alice Njolke Mafe, Endurance Fegor Isoje, Ufuoma Augustina Igbuku, Ali B M Ali, Emad Yousif, Joseph Oghenewogaga Owheruo, Splendour Oberhiri Oberhiri, Arthur Efeoghene Athan Essaghah, Dina S Ahmed, Huzaifa Umar, Ahmed A Alamiery","doi":"10.1007/s12602-025-10546-x","DOIUrl":"10.1007/s12602-025-10546-x","url":null,"abstract":"<p><p>Lactic acid bacteria (LAB) are Gram-positive cocci or rods that do not produce spores or respire. Their primary function is to ferment carbohydrates and produce lactic acid. The two primary forms of LAB that are currently recognized are homofermentative and heterofermentative. This review discusses the evolutionary diversity and the biochemical and biophysical conditions required by LAB for their metabolism. Next, it concentrates on the applications of these bacteria in gut health, cancer prevention, and overall well-being and food systems. There are numerous uses for LAB, including the food and dairy sectors, as probiotics to improve human and animal gut-health, as anti-carcinogenic agents, and in food safety as biopreservatives, pathogen inhibitors, and reducers of anti-nutrients in foods. The group included many genera, including Aerococcus, Carnobacterium, Enterococcus, Lactobacillus, Lactococcus, Leuconostoc, Streptococcus, Tetragenococcus, Vagococcus, and Weissella. Numerous species of Lactobacillus and Bifidobacterium genera as well as other microbes have been suggested as probiotic strains, or live microorganisms added to meals to improve health. LAB can colonize the intestine and take part in the host's physiological processes. This review briefly highlights the role of these bacteria in food safety and security as well as aspects of regulation and consumer acceptance. Finally, the recent innovations in LAB fermentations and the limitations and challenges of the applications of LAB in the food industry are discussed. Notwithstanding recent developments, the study of LAB and their functional components is still an emerging topic of study that has not yet realized its full potential.</p>","PeriodicalId":20506,"journal":{"name":"Probiotics and Antimicrobial Proteins","volume":" ","pages":"2819-2855"},"PeriodicalIF":4.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144009004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Amira A Omar, Mohamed S Gado, Hamada E Kandel, Foad A Farrag, Mustafa Shukry
{"title":"Probiotic Efficacy in Aquaculture: The Role of Technospore® (Bacillus coagulans) in Improving Nile Tilapia (Oreochromis niloticus) Performance and Disease Resistance: a Study on Gut Health, Immunological Response, and Gene Expression.","authors":"Amira A Omar, Mohamed S Gado, Hamada E Kandel, Foad A Farrag, Mustafa Shukry","doi":"10.1007/s12602-024-10279-3","DOIUrl":"10.1007/s12602-024-10279-3","url":null,"abstract":"<p><p>This study evaluated the effects of Technospore® (Bacillus coagulans) supplementation on intestinal health, immune response, and Oreochromis niloticus (Nile tilapia) growth performance. The experiment divided fish into four groups: a control group fed an unsupplemented diet and three experimental groups receiving diets supplemented with 0.2 g/kg, 0.4 g/kg, and 0.8 g/kg of Technospore®, respectively. Results indicated that Technospore® supplementation significantly enhanced growth rates and feed efficiency in all treated groups, with the most pronounced improvements observed in the group receiving 0.4 g/kg. Furthermore, the study revealed that B. coagulans supplementation markedly boosted serum immune responses, as evidenced by increased phagocytic activity, phagocytic index, and lysozyme levels, following a challenge with Aeromonas hydrophila. Histological analysis showed improved gut morphology, while gene expression analysis indicated upregulation of immune-related genes, including liver IGF-1, GHR, HSP70, IL-1β, and TNF-α, as well as spleen TNF-α and IL-1β and intestinal C-lysozyme and TNF-α, both before and after the bacterial challenge. These findings suggest that dietary inclusion of Technospore® can significantly improve gut health and immune responses in tilapia, potentially serving as an effective prophylactic alternative to antibiotics in aquaculture.</p>","PeriodicalId":20506,"journal":{"name":"Probiotics and Antimicrobial Proteins","volume":" ","pages":"3284-3301"},"PeriodicalIF":4.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12532764/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141071649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction: A Novel Synbiotic Protects Against DSS-Induced Colitis in Mice via Anti-inflammatory and Microbiota-Balancing Properties.","authors":"Yong Yang, Yuyu Qiao, Ge Liu, Weihao Chen, Ting Zhang, Jing Liu, Weiping Fan, Mingwei Tong","doi":"10.1007/s12602-025-10583-6","DOIUrl":"10.1007/s12602-025-10583-6","url":null,"abstract":"","PeriodicalId":20506,"journal":{"name":"Probiotics and Antimicrobial Proteins","volume":" ","pages":"3790-3793"},"PeriodicalIF":4.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144151497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Babak Pezeshki, Hussein T Abdulabbas, Ahmed D Alturki, Pegah Mansouri, Elham Zarenezhad, Mahdi Nasiri-Ghiri, Abdolmajid Ghasemian
{"title":"Synergistic Interactions Between Probiotics and Anticancer Drugs: Mechanisms, Benefits, and Challenges.","authors":"Babak Pezeshki, Hussein T Abdulabbas, Ahmed D Alturki, Pegah Mansouri, Elham Zarenezhad, Mahdi Nasiri-Ghiri, Abdolmajid Ghasemian","doi":"10.1007/s12602-025-10462-0","DOIUrl":"10.1007/s12602-025-10462-0","url":null,"abstract":"<p><p>Research into the role of probiotics-often referred to as \"living supplements\"-in cancer therapy is still in its early stages, and uncertainties regarding their effectiveness remain. Relevantly, chemopreventive and therapeutic effects of probiotics have been determined. There is also substantial evidence supporting their potential in cancer treatment such as immunotherapy. Probiotics employ various mechanisms to inhibit cancer initiation and progression. These include colonizing and protecting the gastrointestinal tract (GIT), producing metabolites, inducing apoptosis and autophagy, exerting anti-inflammatory properties, preventing metastasis, enhancing the effectiveness of immune checkpoint inhibitors (ICIs), promoting cancer-specific T cell infiltration, arresting the cell cycle, and exhibiting direct or indirect synergistic effects with anticancer drugs. Additionally, probiotics have been shown to activate tumor suppressor genes and inhibit pro-inflammatory transcription factors. They also increase reactive oxygen species production within cancer cells. Synergistic interactions between probiotics and various anticancer drugs, such as cisplatin, cyclophosphamide, 5-fluorouracil, trastuzumab, nivolumab, ipilimumab, apatinib, gemcitabine, tamoxifen, sorafenib, celecoxib and irinotecan have been observed. The combination of probiotics with anticancer drugs holds promise in overcoming drug resistance, reducing recurrence, minimizing side effects, and lowering treatment costs. In addition, fecal microbiota transplantation (FMT) and prebiotics supplementation has increased cytotoxic T cells within tumors. However, probiotics may leave some adverse effects such as risk of infection and gastrointestinal effects, antagonistic effects with drugs, and different responses among patients. These findings highlight insights for considering specific strains and engineered probiotic applications, preferred doses and timing of treatment, and personalized therapies to enhance the efficacy of cancer therapy. Accordingly, targeted interventions and guidelines establishment needs extensive randomized controlled trials as probiotic-based cancer therapy has not been approved by Food and Drug Administration (FDA).</p>","PeriodicalId":20506,"journal":{"name":"Probiotics and Antimicrobial Proteins","volume":" ","pages":"2791-2804"},"PeriodicalIF":4.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143053390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Muhammad Muneeb, Ehsaan Ullah Khan, Mubashar Ali, Muhammad Naveed Ul Haque, Muhammad Umar Zafar Khan, Sohail Ahmad
{"title":"Comparative Effects of Antibiotic and Antimicrobial Peptide on Growth Performance, Gut Morphology, Intestinal Lesion Score, Ileal Microbial Counts, and Immune Status in Broilers Challenged with Necrotic Enteritis.","authors":"Muhammad Muneeb, Ehsaan Ullah Khan, Mubashar Ali, Muhammad Naveed Ul Haque, Muhammad Umar Zafar Khan, Sohail Ahmad","doi":"10.1007/s12602-025-10448-y","DOIUrl":"10.1007/s12602-025-10448-y","url":null,"abstract":"<p><p>This experiment aimed to compare the efficacy of an antimicrobial peptide (AMP) with a conventional antibiotic growth promoter (AGP) during necrotic enteritis (NE) challenge in broilers. In total, 720 1-day-old exclusively male broiler chicks (Ross-308) were allocated to five treatments, each with six replicates of 24 birds (n = 144/treatment), for 35 days. The treatments were as follows: (1) uninfected control (UC) with basal diet, (2) infected control (IC) with C. perfringens challenge and basal diet, (3) CP-AGP with C. perfringens challenge and 200 g/ton enramycin throughout trial, (4) CP-AMP1 with C. perfringens challenge and 200 g/ton AMP in all phases, and (5) CP-AMP2 with C. perfringens challenge and 300 g/ton AMP throughout experiment. To induce NE, the birds were predisposed with 10 × coccidia vaccine (day 15) followed by oral gavage of C. perfringens type G (1 ml; 1 × 10<sup>8</sup> CFU/ml/bird) at days 19 and 20. The results showed that AMP supplemented at 300 g/ton of diet improved body weight gain and FCR in both non-challenge (days 1-14) and challenge phases (days 15-35) as compared to the infected control (P < 0.05). Moreover, it also enhanced the livability and production efficiency factor (P < 0.0001). AMP at 300 g/ton also reduced NE lesion scores, and coccidia oocyst shedding, and positively affected intestinal morphology, gut microbial balance, immune organ weights, and HI titers against Newcastle disease (P < 0.0001). These findings suggest that AMP at 300 g/ton of diet could effectively mitigate NE and may be used as a viable substitute for AGPs in broiler diets during the NE challenge.</p>","PeriodicalId":20506,"journal":{"name":"Probiotics and Antimicrobial Proteins","volume":" ","pages":"3559-3573"},"PeriodicalIF":4.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142953757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Lactobacillus crispatus 7-4 Mitigates Salmonella typhimurium-Induced Enteritis via the γ‑Glutamylcysteine-Mediated Nrf2 Pathway.","authors":"Huixian Wu, Chenchen Ding, Chunyan Chi, Shuhui Liu, Zhangshan Gao, Weidong Sun, Haiming Zhao, Suquan Song","doi":"10.1007/s12602-024-10294-4","DOIUrl":"10.1007/s12602-024-10294-4","url":null,"abstract":"<p><p>Salmonella typhimurium (S. typhimurium) constitutes a major public health concern. We have previously proven that Lactobacillus crispatus 7-4 (L. crispatus 7-4) can inhibit the growth of S. typhimurium and thus can be used as a biocontrol strategy to suppress foodborne S. typhimurium infections. However, the inhibitory effect and in-depth mechanism of L. crispatus 7-4 remain to be elucidated. In this study, we found that L. crispatus 7-4 can protect against S. typhimurium-induced ileum injury by promoting intestinal barrier integrity, maintaining intestinal mucosal barrier homeostasis, and reducing intestinal inflammatory response. Furthermore, we demonstrated that this probiotic strain can increase the abundance of Lactobacillus spp. to maintain microbial homeostasis and simultaneously increase the amount of γ‑glutamylcysteine (γ-GC) by activating the glutathione metabolic pathway. The increased γ-GC promoted the transcription of Nrf2 target genes, thereby improving the host antioxidant level, reducing reactive oxygen species (ROS) accumulation, and removing pro-inflammatory cytokines. In other words, L. crispatus 7-4 could activate the enterocyte Nrf2 pathway by improving γ-GC to protect against S. typhimurium-induced intestinal inflammation and oxidative damage.</p>","PeriodicalId":20506,"journal":{"name":"Probiotics and Antimicrobial Proteins","volume":" ","pages":"3378-3391"},"PeriodicalIF":4.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141200402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}