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Han J, Xia W, Wang D, Wang Y, Liu Z, Wu Z. Characterization of an exopolysaccharide synthesized by Lacticaseibacillus rhamnosus B6 and its immunomodulatory activity in vitro. Int J Biol Macromol 2024; 264:130576. [PMID: 38442828 DOI: 10.1016/j.ijbiomac.2024.130576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 02/18/2024] [Accepted: 02/29/2024] [Indexed: 03/07/2024]
Abstract
An exopolysaccharide, designated F1, was purified from the fermented milk by Lacticaseibacillus rhamnosus strain B6 (CGMCC No. 13310). F1, with the weight average molecular weight of 1.577 × 106 Da, is consisted of rhamnose, glucose and galactose in a molar ratio of 3.7:1.5: 1. The backbone included 1,3-linked Rha, 1,2,3-linked Rha, 1,2-linked Glc and 1,3-linked Glc residues, with the branching point located at O2 position of 1,2,3-linked Rha residue, and the branch chain composed of terminal linked galactose residue with a pyruvate substituent. F1 could significantly stimulate the phagocytic activity and TNF-α expression in RAW 264.7 macrophages in a dose-dependent manner, and the release of NO at 200 μg/mL as well. F1 at 200 μg/mL could stimulate the expression of the pro-inflammatory cytokine encoding genes including TNF-α and iNOS, but with a negligible upregulating effect on the mRNA expression of IL-10. F1 could up-regulate the expression of NF-κBp65 and skew macrophage polarization towards M1 phenotype. These results suggest F1 elicit an immunomodulatory effect through the NF-κB signaling pathway.
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Affiliation(s)
- Jin Han
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, PR China
| | - Wei Xia
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Danqi Wang
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, PR China
| | - Yitian Wang
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, PR China
| | - Zhenmin Liu
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, PR China
| | - Zhengjun Wu
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, PR China.
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2
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Zhao L, Miao Y, Shan B, Zhao C, Peng C, Gong J. Theabrownin Isolated from Pu-Erh Tea Enhances the Innate Immune and Anti-Inflammatory Effects of RAW264.7 Macrophages via the TLR2/4-Mediated Signaling Pathway. Foods 2023; 12:foods12071468. [PMID: 37048289 PMCID: PMC10094067 DOI: 10.3390/foods12071468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 03/24/2023] [Accepted: 03/27/2023] [Indexed: 04/14/2023] Open
Abstract
Theabrownin (TB) is a tea pigment extracted from Pu-erh Tea. The effects of TB on innate immunity and inflammation are not well understood. Herein, the effects of TB on innate immunity are investigated using RAW264.7 macrophages. We found that TB promoted the proliferation of RAW264.7 macrophages, altered their morphology, enhanced their pinocytic and phagocytic ability, and significantly increased their secretion of nitric oxide (NO) and cytokines, all of which enhanced the immune response. Additionally, TB inhibited the release of inflammatory signals in RAW264.7 macrophages primed with lipopolysaccharide (LPS), implying that TB modulates the excessive inflammation induced by bacterial infection. A Western blot showed that TB could activate the toll-like receptor (TLR)2/4-mediated myeloid differentiation factor 88 (MyD88)-dependent mitogen activated protein kinase (MAPK) and nuclear factor-κB (NF-κB) signaling pathway and the TLR2-mediated phosphoinositide 3-kinase (PI3K)-AKT signaling pathway, enhancing the immune functions of RAW264.7 macrophages. TB also inhibited the phosphorylation of core proteins in the MAPK/NF-κB/PI3K-AKT signaling pathway induced by LPS. In addition, we analyzed the transcriptomes of RAW264.7 macrophages, and a Kyoto encyclopedia of genes and genomes (KEGG) enrichment analysis revealed that TB modulated thetoll-like receptor signal pathway. A gene ontology (GO) enrichment analysis indicated that TB treatment strongly modulated the immune response and inflammation. As a result, TB-enhanced innate immunity and modulated inflammation via the TLR2/4 signaling pathway.
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Affiliation(s)
- Lei Zhao
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
- College of Science, Yunnan Agricultural University, Kunming 650201, China
| | - Yue Miao
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Bo Shan
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Chunyan Zhao
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Chunxiu Peng
- College of Horticulture and Landscape, Yunnan Agricultural University, Kunming 650201, China
| | - Jiashun Gong
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
- Agro-products Processing Research Institute, Yunnan Academy of Agricultural Sciences, Kunming 650223, China
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3
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Moringa oleifera leaf attenuate osteoporosis in ovariectomized rats by modulating gut microbiota composition and MAPK signaling pathway. Biomed Pharmacother 2023; 161:114434. [PMID: 36841025 DOI: 10.1016/j.biopha.2023.114434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/09/2023] [Accepted: 02/20/2023] [Indexed: 02/25/2023] Open
Abstract
Moringa oleifera leaf (MLP) contains abundant complex nutrients with anti-osteoporosis potential. However, its efficacy and mechanisms against osteoporosis remain unknown. The purpose of this research is to investigate MLP's anti-osteoporotic effects and mechanisms. Animal experiments were used in this work to validate MLP's anti-osteoporotic efficacy. We investigated the mode of action of MLP, analyzed its impact on the gut microbiota, and predicted and validated its anti-osteoporosis-related molecular targets and pathways through network pharmacology, molecular docking, and western blotting. In an ovariectomized osteoporosis rat model, MLP significantly increased bone mineral density and improved bone metabolism-related indicators, bone microstructure, and lipid profile. Moreover, it improved gut microbiota composition and increased the expression of Occludin and Claudin-1 protein in the duodenum. Network pharmacology identified a total of 97 active ingredients and 478 core anti-osteoporosis targets. Of these, MAPK1 (also known as ERK2), MAPK3 (also known as ERK1), and MAPK8 (also known as JNK) were successfully docked with the active constituents of MLP. Interestingly, MLP increased ERK and VAV3 protein expression and decreased p-ERK and JNK protein expression in the femur. These findings confirm MLP's anti-osteoporotic efficacy, which could be mediated via regulation of gut microbiota and MAPK signaling.
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4
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Xu S, Xiong Y, Fu B, Guo D, Sha Z, Lin X, Wu H. Bacteria and macrophages in the tumor microenvironment. Front Microbiol 2023; 14:1115556. [PMID: 36825088 PMCID: PMC9941202 DOI: 10.3389/fmicb.2023.1115556] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 01/12/2023] [Indexed: 02/10/2023] Open
Abstract
Cancer and microbial infections are significant worldwide health challenges. Numerous studies have demonstrated that bacteria may contribute to the emergence of cancer. In this review, we assemble bacterial species discovered in various cancers to describe their variety and specificity. The relationship between bacteria and macrophages in cancer is also highlighted, and we look for ample proof to establish a biological basis for bacterial-induced macrophage polarization. Finally, we quickly go over the potential roles of metabolites, cytokines, and microRNAs in the regulation of the tumor microenvironment by bacterially activated macrophages. The complexity of bacteria and macrophages in cancer will be revealed as we gain a better understanding of their pathogenic mechanisms, which will lead to new therapeutic approaches for both inflammatory illnesses and cancer.
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Affiliation(s)
| | | | - Beibei Fu
- School of Life Sciences, Chongqing University, Chongqing, China
| | - Dong Guo
- School of Life Sciences, Chongqing University, Chongqing, China
| | - Zhou Sha
- School of Life Sciences, Chongqing University, Chongqing, China
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5
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Duan B, Liu R, Shi Y, Sun A, Tang Z, Wang C, Hu J. Lactobacillus plantarum synergistically regulates M1 macrophage polarization in resistance against Salmonella enterica serovar Typhimurium infection. Front Microbiol 2022; 13:933550. [PMID: 36325023 PMCID: PMC9620862 DOI: 10.3389/fmicb.2022.933550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 09/20/2022] [Indexed: 11/22/2022] Open
Abstract
Macrophage polarization affects the progression of pathogenic bacterial infections. Lactobacillus is widely used to interact with macrophages and to exert specific immunomodulatory activities. In this study, we investigated the regulation of macrophage polarization against Salmonella enterica serotype Typhimurium (STM) by Lactobacillus plantarum JL01 (LP), to explore prevention and treatment strategies for salmonellosis. We assessed the in vitro differential polarization of RAW 264.7 macrophages and mouse bone marrow macrophages (BMMs) by LP against STM, by measuring protein and cytokine levels, and bactericidal activity. In addition, we assessed the protective effects of LP against STM by evaluating weight loss, survival, the burden of STM in tissues, the polarization of macrophages in the spleen and mesenteric lymph nodes (MLNs), intestinal histopathology, and cytokine production. LP slightly affected the polarization of RAW 264.7, a slight M1-skewing. LP promoted the RAW 264.7 bactericidal activity against STM. In BMMs, M1 polarization induced by LP was significantly lower than the M1-positive phenotype. The combination of LP with M1 synergistically improved M1 polarization and bactericidal activity against STM compared to the individual effects. LP promoted the activation of the NF-κB signaling pathway. Supplementation with the NF-κB inhibitor decreased M1 polarization induced by LP. We observed the protective effect of LP against STM in C57BL/6 mice, through a decrease in weight loss, mortality, STM burden in the liver, and promotion of macrophage M1 and M2 polarization in the spleen and MLNs; though M1 was higher, it did not cause inflammatory damage. In summary, LP can synergistically promote M1 polarization in combination with the M1 phenotype through the NF-κB signaling pathway and increases resistance against S. Typhimurium infection. These findings will lay the foundation for the prevention and treatment of S. Typhimurium infections in the future.
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Affiliation(s)
- Bingjie Duan
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
- Jilin Provincial Key Laboratory of Animal Microecology and Health Breeding, Changchun, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Changchun, China
| | - Ruihan Liu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
- Jilin Provincial Key Laboratory of Animal Microecology and Health Breeding, Changchun, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Changchun, China
| | - Yumeng Shi
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
- Jilin Provincial Key Laboratory of Animal Microecology and Health Breeding, Changchun, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Changchun, China
| | - Anqi Sun
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
- Jilin Provincial Key Laboratory of Animal Microecology and Health Breeding, Changchun, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Changchun, China
| | - Zhengxu Tang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
- Jilin Provincial Key Laboratory of Animal Microecology and Health Breeding, Changchun, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Changchun, China
| | - Chunfeng Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
- Jilin Provincial Key Laboratory of Animal Microecology and Health Breeding, Changchun, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Changchun, China
- Chunfeng Wang
| | - Jingtao Hu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
- Jilin Provincial Key Laboratory of Animal Microecology and Health Breeding, Changchun, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Changchun, China
- *Correspondence: Jingtao Hu
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6
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Xu Y, Ding X, Wang Y, Li D, Xie L, Liang S, Zhang Y, Li W, Fu A, Zhan X. Bacterial Metabolite Reuterin Attenuated LPS-Induced Oxidative Stress and Inflammation Response in HD11 Macrophages. Antioxidants (Basel) 2022; 11:antiox11091662. [PMID: 36139735 PMCID: PMC9495524 DOI: 10.3390/antiox11091662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/13/2022] [Accepted: 08/23/2022] [Indexed: 11/25/2022] Open
Abstract
Reuterin is well-known for its broad-spectrum antimicrobial ability, while the other potential bioactivity is not yet clear. The present study aims to investigate the immunomodulatory activity of reuterin on chicken macrophage HD11 cells for the first time and evaluate whether reuterin is able to regulate the lipopolysaccharide-stimulated inflammatory response. The results showed that the safe medication range of reuterin was less than 250 μM. Reuterin treatment for 6 h decreased the transcriptional of CD86, IL-1β and iNOS and increased the expression of CD206 in a dose-dependent way, but reuterin treatment for 12 h contrary increased the expression of IL-1β, IL-6 and IL-10. However, it was noticed that reuterin treatment for 12 h significantly decreased the production of reactive oxygen species (ROS) and suppressed the phagocytosis activity of HD11 macrophages against bacteria. Further, the results showed that preincubation or coincubation with reuterin significantly attenuated the promotive effects of lipopolysaccharide (LPS) on transcription of proinflammatory cytokines (including IL-1β, IL-6 and TNF-α) and obviously inhibited nitric oxide (NO) production as well as the protein expression of inducible nitric oxide synthase (iNOS). Meanwhile, Mechanism studies implied that reuterin might exert an anti-inflammatory effect on LPS-stimulated cells by downregulating the expression of TLR4/MyD88/TRAF6 and blocking the activation of NF-κB as well as MAPKs signaling pathways. Additionally, it was found that both pretreatment and cotreatment with reuterin remarkably inhibited the oxidative stress induced by LPS stimulation by activating the Nrf2/HO-1 signaling pathway and enhancing the activities of antioxidative enzymes. These findings suggested the immunoregulatory function of reuterin and indicated this bacterial metabolite was able to inhibit the inflammation and oxidative stress of HD11 macrophages once exposed to LPS stimulation.
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7
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Tang Q, Peng X, Xu B, Zhou X, Chen J, Cheng L. Current Status and Future Directions of Bacteria-Based Immunotherapy. Front Immunol 2022; 13:911783. [PMID: 35757741 PMCID: PMC9226492 DOI: 10.3389/fimmu.2022.911783] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 05/12/2022] [Indexed: 02/05/2023] Open
Abstract
With the in-depth understanding of the anti-cancer immunity, immunotherapy has become a promising cancer treatment after surgery, radiotherapy, and chemotherapy. As natural immunogenicity substances, some bacteria can preferentially colonize and proliferate inside tumor tissues to interact with the host and exert anti-tumor effect. However, further research is hampered by the infection-associated toxicity and their unpredictable behaviors in vivo. Due to modern advances in genetic engineering, synthetic biology, and material science, modifying bacteria to minimize the toxicity and constructing a bacteria-based immunotherapy platform has become a hotspot in recent research. This review will cover the inherent advantages of unedited bacteria, highlight how bacteria can be engineered to provide greater tumor-targeting properties, enhanced immune-modulation effect, and improved safety. Successful applications of engineered bacteria in cancer immunotherapy or as part of the combination therapy are discussed as well as the bacteria based immunotherapy in different cancer types. In the end, we highlight the future directions and potential opportunities of this emerging field.
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Affiliation(s)
- Quan Tang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xian Peng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bo Xu
- Cancer Institute, Xuzhou Medical University, Xuzhou, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jing Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Lei Cheng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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8
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Zhao C, Chen H, Liang H, Zhao X, Tang W, Wei M, Li Y, Zhang J, Yu X, Chen G, Zhu H, Jiang L, Zhang X. Lactobacillus plantarum RS-09 Induces M1-Type Macrophage Immunity Against Salmonella Typhimurium Challenge via the TLR2/NF-κB Signalling Pathway. Front Pharmacol 2022; 13:832245. [PMID: 35355723 PMCID: PMC8959098 DOI: 10.3389/fphar.2022.832245] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 01/26/2022] [Indexed: 12/30/2022] Open
Abstract
Lactobacillus plantarum can interact with macrophages against bacterial enteropathy due to its potential ability to modulate macrophage polarization. However, this mechanism is not completely understood. TLR2 can recognize microbial components and trigger macrophage cytokine responses to different gram-positive strains. The aim of this study was to investigate whether probiotic Lactobacillus plantarum RS-09 can induce macrophage polarization against Salmonella Typhimurium infection via TLR2 signalling. BALB/c mice were preadministered RS-09 continuously for 7 days and then infected with Salmonella Typhimurium ATCC14028. Mouse RAW264.7 mononuclear macrophages were stimulated with RS-09 and coincubated with ATCC14028 or PBS controls. The results of the in vivo study indicated that RS-09 could relieve S. Typhimurium-induced splenomegaly, body weight loss and death rate. RS-09 also limited the colonization and translocation of S. Typhimurium in the gastrointestinal tract and thereby protected against infection. We also observed that RS-09 upregulated the production of M1 macrophage characteristics (e.g., CD11c and IL-6) against S. Typhimurium. Furthermore, RS-09 induced the expression of TLR2 in macrophages. In an in vitro study, treatment of RAW264.7 cells with RS-09 either concurrently with or before S. Typhimurium challenge enhanced the secretion of Reactive oxygen species and Nitric oxide. This effect was related to TLR2 and NF-κB activation. Based on these findings, Lactobacillus plantarum RS-09 was shown to modulate M1 macrophage polarization and induce TLR2-linked NF-κB signalling activity in the innate immune response to S. Typhimurium infection.
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Affiliation(s)
- Chenpei Zhao
- School of Life Sciences, Ludong University, Yantai, China
| | - Huan Chen
- School of Life Sciences, Ludong University, Yantai, China
| | - Hao Liang
- Department of Microbiology, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiaoyu Zhao
- School of Life Sciences, Ludong University, Yantai, China
- Shandong Provincial Key Laboratory of Quality Safty Monitoring and Risk Assessment for Animal Products, Jinan, China
| | - Wenli Tang
- Shandong Provincial Key Laboratory of Quality Safty Monitoring and Risk Assessment for Animal Products, Jinan, China
| | - Maolian Wei
- Shandong Provincial Key Laboratory of Quality Safty Monitoring and Risk Assessment for Animal Products, Jinan, China
| | - Youzhi Li
- Shandong Provincial Key Laboratory of Quality Safty Monitoring and Risk Assessment for Animal Products, Jinan, China
| | - Jianlong Zhang
- School of Life Sciences, Ludong University, Yantai, China
- Shandong Provincial Key Laboratory of Quality Safty Monitoring and Risk Assessment for Animal Products, Jinan, China
| | - Xin Yu
- School of Life Sciences, Ludong University, Yantai, China
- Shandong Provincial Key Laboratory of Quality Safty Monitoring and Risk Assessment for Animal Products, Jinan, China
- Yantai Key Laboratory of Animal Pathogenetic Microbiology and Immunology, Yantai, China
| | - Guozhong Chen
- School of Life Sciences, Ludong University, Yantai, China
- Yantai Key Laboratory of Animal Pathogenetic Microbiology and Immunology, Yantai, China
- Shandong Aquaculture Environmental Control Engineering Laboratory, Yantai, China
| | - Hongwei Zhu
- School of Life Sciences, Ludong University, Yantai, China
- Shandong Provincial Key Laboratory of Quality Safty Monitoring and Risk Assessment for Animal Products, Jinan, China
- Shandong Aquaculture Environmental Control Engineering Laboratory, Yantai, China
| | - Linlin Jiang
- School of Life Sciences, Ludong University, Yantai, China
- Shandong Provincial Key Laboratory of Quality Safty Monitoring and Risk Assessment for Animal Products, Jinan, China
- Shandong Aquaculture Environmental Control Engineering Laboratory, Yantai, China
- *Correspondence: Linlin Jiang, ; Xingxiao Zhang,
| | - Xingxiao Zhang
- School of Life Sciences, Ludong University, Yantai, China
- Shandong Aquaculture Environmental Control Engineering Laboratory, Yantai, China
- *Correspondence: Linlin Jiang, ; Xingxiao Zhang,
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9
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Myhill LJ, Stolzenbach S, Mejer H, Krych L, Jakobsen SR, Kot W, Skovgaard K, Canibe N, Nejsum P, Nielsen DS, Thamsborg SM, Williams AR. Parasite-Probiotic Interactions in the Gut: Bacillus sp. and Enterococcus faecium Regulate Type-2 Inflammatory Responses and Modify the Gut Microbiota of Pigs During Helminth Infection. Front Immunol 2022; 12:793260. [PMID: 35069576 PMCID: PMC8766631 DOI: 10.3389/fimmu.2021.793260] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 12/07/2021] [Indexed: 01/18/2023] Open
Abstract
Dietary probiotics may enhance gut health by directly competing with pathogenic agents and through immunostimulatory effects. These properties are recognized in the context of bacterial and viral pathogens, but less is known about interactions with eukaryotic pathogens such as parasitic worms (helminths). In this study we investigated whether two probiotic mixtures (comprised of Bacillus amyloliquefaciens, B. subtilis, and Enterococcus faecium [BBE], or Lactobacillus rhamnosus LGG and Bifidobacterium animalis subspecies Lactis Bb12 [LB]) could modulate helminth infection kinetics as well as the gut microbiome and intestinal immune responses in pigs infected with the nodular worm Oesophagostomum dentatum. We observed that neither probiotic mixture influenced helminth infection levels. BBE, and to a lesser extent LB, changed the alpha- and beta-diversity indices of the colon and fecal microbiota, notably including an enrichment of fecal Bifidobacterium spp. by BBE. However, these effects were muted by concurrent O. dentatum infection. BBE (but not LB) significantly attenuated the O. dentatum-induced upregulation of genes involved in type-2 inflammation and restored normal lymphocyte ratios in the ileo-caecal lymph nodes that were altered by infection. Moreover, inflammatory cytokine release from blood mononuclear cells and intestinal lymphocytes was diminished by BBE. Collectively, our data suggest that selected probiotic mixtures can play a role in maintaining immune homeostasis during type 2-biased inflammation. In addition, potentially beneficial changes in the microbiome induced by dietary probiotics may be counteracted by helminths, highlighting the complex inter-relationships that potentially exist between probiotic bacteria and intestinal parasites.
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Affiliation(s)
- Laura J Myhill
- Department of Veterinary and Animal Sciences, University of Copenhagen, Faculty of Health and Medical Sciences, Frederiksberg, Denmark
| | - Sophie Stolzenbach
- Department of Veterinary and Animal Sciences, University of Copenhagen, Faculty of Health and Medical Sciences, Frederiksberg, Denmark
| | - Helena Mejer
- Department of Veterinary and Animal Sciences, University of Copenhagen, Faculty of Health and Medical Sciences, Frederiksberg, Denmark
| | - Lukasz Krych
- Department of Food Science, University of Copenhagen, Frederiksberg, Denmark
| | - Simon R Jakobsen
- Department of Veterinary and Animal Sciences, University of Copenhagen, Faculty of Health and Medical Sciences, Frederiksberg, Denmark
| | - Witold Kot
- Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Kerstin Skovgaard
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Nuria Canibe
- Department of Animal Science - Immunology and Microbiology, Aarhus University, Tjele, Denmark
| | - Peter Nejsum
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Dennis S Nielsen
- Department of Food Science, University of Copenhagen, Frederiksberg, Denmark
| | - Stig M Thamsborg
- Department of Veterinary and Animal Sciences, University of Copenhagen, Faculty of Health and Medical Sciences, Frederiksberg, Denmark
| | - Andrew R Williams
- Department of Veterinary and Animal Sciences, University of Copenhagen, Faculty of Health and Medical Sciences, Frederiksberg, Denmark
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10
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Bi H, Xu Y, Fan F, Sun X. Effect of drying methods on
Lactobacillus Rhamnosus
GG microcapsules prepared using the complex coacervation method. J Food Sci 2022; 87:1282-1291. [DOI: 10.1111/1750-3841.16061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/23/2021] [Accepted: 01/02/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Huimin Bi
- Key Laboratory for Forest Resources Conservation and Utilisation in the Southwest Mountains of China, Ministry of Education, and College of Life Sciences Southwest Forestry University Kunming P. R. China
| | - Yuqiao Xu
- Key Laboratory for Forest Resources Conservation and Utilisation in the Southwest Mountains of China, Ministry of Education, and College of Life Sciences Southwest Forestry University Kunming P. R. China
| | - Fangyu Fan
- Key Laboratory for Forest Resources Conservation and Utilisation in the Southwest Mountains of China, Ministry of Education, and College of Life Sciences Southwest Forestry University Kunming P. R. China
| | - Xue Sun
- Key Laboratory for Forest Resources Conservation and Utilisation in the Southwest Mountains of China, Ministry of Education, and College of Life Sciences Southwest Forestry University Kunming P. R. China
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11
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Liu L, Cheng M, Zhang T, Chen Y, Wu Y, Wang Q. Mesenchymal stem cell-derived extracellular vesicles prevent glioma by blocking M2 polarization of macrophages through a miR-744-5p/TGFB1-dependent mechanism. Cell Biol Toxicol 2022; 38:649-665. [PMID: 34978010 DOI: 10.1007/s10565-021-09652-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 09/03/2021] [Indexed: 12/20/2022]
Abstract
AIM Our current study is conducted with intention to explore the regulatory mechanism of mesenchymal stem cell (MSC)-derived extracellular vesicle (EV)-miR-744-5p in glioma. METHODS Expression patterns of TGFB1, TGFBR1, and miR-744-5p were determined. EVs were isolated from human MSCs, which were characterized. Then, macrophages were co-cultured with MSCs with ectopic miR-744-5p expression to explore its role in cell proliferation, invasion, and migration capabilities. A nude mouse model of glioma xenograft was developed to observe the tumorigenesis and metastasis ability of glioma in vivo. RESULTS TGFB1 and TGFBR1 were upregulated in glioma. TGFB1 promoted M2 polarization of macrophages through theMAPK signaling, thereby promoting the progression of glioma. MSC-EVs suppressed TGFB1 expression in macrophages and inhibited M2 polarization of macrophages. MSC-EVs-miR-744-5p/TGFB1/MAPK axis inhibited M2 polarization of macrophages and reduced the malignant phenotypes of glioma cells. In vivo experiments verified that MSC-EVs-miR-744-5p inhibited the polarization of macrophage M2 and prevented glioma progression. CONCLUSION Taken together, MSC-EVs-miR-744-5p may suppress the MAPK signaling activity by downregulating TGFB1, and then inhibit polarization of macrophages M2, thereby preventing the progression of glioma. Graphical Headlights 1. TGFB1 promotes the M2 polarization of macrophages via the MAPK signaling. 2. miR-744-5p carried by MSC-EVs targets and inhibits TGFB1. 3. MSC-EV-miR-744-5p inhibits M2 polarization of macrophages to prevent glioma progression. 4. miR-744-5p loaded by MSC-EVs may be a preventive strategy against glioma.
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Affiliation(s)
- Ling Liu
- Department of Neurosurgery, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Section 2, 1st Ring Road, Chengdu, 610072, Sichuan Province, People's Republic of China
| | - Meixiong Cheng
- Department of Neurosurgery, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Section 2, 1st Ring Road, Chengdu, 610072, Sichuan Province, People's Republic of China
| | - Tian Zhang
- Department of Neurosurgery, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Section 2, 1st Ring Road, Chengdu, 610072, Sichuan Province, People's Republic of China
| | - Yong Chen
- Department of Neurosurgery, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Section 2, 1st Ring Road, Chengdu, 610072, Sichuan Province, People's Republic of China
| | - Yaqiu Wu
- Department of Neurosurgery Intensive Care Unit, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Section 2, 1st Ring Road, Chengdu, 610072, Sichuan Province, People's Republic of China.
| | - Qi Wang
- Department of Neurosurgery, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Section 2, 1st Ring Road, Chengdu, 610072, Sichuan Province, People's Republic of China.
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12
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Curcumin Alleviated Dextran Sulfate Sodium-Induced Colitis by Regulating M1/M2 Macrophage Polarization and TLRs Signaling Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:3334994. [PMID: 34567209 PMCID: PMC8463179 DOI: 10.1155/2021/3334994] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 08/30/2021] [Accepted: 09/04/2021] [Indexed: 02/08/2023]
Abstract
Curcumin has shown good efficacy in mice with experimental colitis and in patients with ulcerative colitis, but the mechanism of action through the regulation of M1/M2 macrophage polarization has not been elaborated. The ulcerative colitis was modeled by dextran sulfate sodium; colitis mice were orally administrated with curcumin (10 mg/kg/day) or 5-ASA (300 mg/kg/day) for 14 consecutive days. After curcumin treatment, the body weight, colon weight and length, colonic weight index, and histopathological damage in colitis mice were effectively improved. The concentrations of proinflammatory cytokines IL-1β, IL-6, and CCL-2 in the colonic tissues of colitis mice decreased significantly, while anti-inflammatory cytokines IL-33 and IL-10 increased significantly. Importantly, macrophage activation was suppressed and M1/M2 macrophage polarization was regulated in colitis mice, and the percentage of CD11b+F4/80+ and CD11b+F4/80+TIM-1+ and CD11b+F4/80+iNOS+ decreased significantly and CD11b+F4/80+CD206+ and CD11b+F4/80+CD163+ increased significantly. Additionally, curcumin significantly downregulated CD11b+F4/80+TLR4+ macrophages and the protein levels of TLR2, TLR4, MyD88, NF-κBp65, p38MAPK, and AP-1 in colitis mice. Our study suggested that curcumin exerted therapeutic effects in colitis mice by regulating the balance of M1/M2 macrophage polarization and TLRs signaling pathway.
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Wang B, Ye X, Zhou Y, Zhao P, Mao Y. Glycyrrhizin Attenuates Salmonella Typhimurium-Induced Tissue Injury, Inflammatory Response, and Intestinal Dysbiosis in C57BL/6 Mice. Front Vet Sci 2021; 8:648698. [PMID: 34239908 PMCID: PMC8258384 DOI: 10.3389/fvets.2021.648698] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Accepted: 05/12/2021] [Indexed: 11/13/2022] Open
Abstract
Salmonellae are one of the most important foodborne pathogens, which threaten the health of humans and animals severely. Glycyrrhizin (GL) has been proven to exhibit anti-inflammatory and tissue-protective properties. Here, we investigated the effects of GL on tissue injury, inflammatory response, and intestinal dysbiosis in Salmonella Typhimurium-infected mice. Results showed that GL or gentamicin (GM) significantly (P < 0.05) alleviated ST-induced splenomegaly indicated by the decreased spleen index, injury of liver and jejunum indicated by the decreased hepatocytic apoptosis, and the increased jejunal villous height. GL significantly (P < 0.05) increased secretion of inflammatory cytokines (IFN-γ, IL-12p70, IL-6, and IL-10) in spleen and IL-12p40 mRNA expression in liver. Meanwhile, GL or GM pre-infection treatments significantly (P < 0.05) decreased ST-induced pro-inflammatory cytokine (IFN-γ, TNF-α, and IL-6) expression in both spleen and liver and increased (P < 0.05) anti-inflammatory cytokine IL-10 secretion in spleen. Furthermore, GL or GM pre-infection treatment also regulates the diversities and compositions of intestinal microbiota and decreased the negative connection among the intestinal microbes in ST-infected mice. The above findings indicate that GL alleviates ST-induced splenomegaly, hepatocytic apoptosis, injury of jejunum and liver, inflammatory response of liver and spleen, and intestinal dysbacteriosis in mice.
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Affiliation(s)
- Baikui Wang
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Institute of Animal Nutrition and Feed Sciences, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Xiaolin Ye
- Medical Faculty, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Yuanhao Zhou
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Institute of Animal Nutrition and Feed Sciences, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Pengwei Zhao
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Institute of Animal Nutrition and Feed Sciences, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yulong Mao
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Institute of Animal Nutrition and Feed Sciences, College of Animal Sciences, Zhejiang University, Hangzhou, China
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14
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Owens JA, Saeedi BJ, Naudin CR, Hunter-Chang S, Barbian ME, Eboka RU, Askew L, Darby TM, Robinson BS, Jones RM. Lactobacillus rhamnosus GG Orchestrates an Antitumor Immune Response. Cell Mol Gastroenterol Hepatol 2021; 12:1311-1327. [PMID: 34111601 PMCID: PMC8463873 DOI: 10.1016/j.jcmgh.2021.06.001] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 05/27/2021] [Accepted: 06/01/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND & AIMS In colorectal cancer, approximately 95% of patients are refractory to immunotherapy because of low antitumor immune responses. Therefore, there is an exigent need to develop treatments that increase antitumor immune responses and decrease tumor burden to enhance immunotherapy. METHODS The gut microbiome has been described as a master modulator of immune responses. We administered the human commensal, Lactobacillus rhamnosus GG (LGG), to mice and characterized the changes in the gut immune landscape. Because the presence of lactobacilli in the gut microbiome has been linked with decreased tumor burden and antitumor immune responses, we also supplemented a genetic and a chemical model of murine intestinal cancer with LGG. For clinical relevance, we therapeutically administered LGG after tumors had formed. We also tested for the requirement of CD8 T cells in LGG-mediated modulation of gut tumor burden. RESULTS We detected increased colonic CD8 T-cell responses specifically in LGG-supplemented mice. The CD8 T-cell induction was dependent on dendritic cell activation mediated via Toll-like receptor-2, thereby describing a novel mechanism in which a member of the human microbiome induces an intestinal CD8 T-cell response. We also show that LGG decreased tumor burden in the murine gut cancer models by a CD8 T-cell-dependent manner. CONCLUSIONS These data support the potential use of LGG to augment antitumor immune responses in colorectal cancer patients and ultimately for increasing the breadth and efficacy of immunotherapy.
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Affiliation(s)
- Joshua A. Owens
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia
| | - Bejan J. Saeedi
- Department of Pathology, Emory University School of Medicine, Atlanta, Georgia
| | - Crystal R. Naudin
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia
| | - Sarah Hunter-Chang
- Department of Pathology, Emory University School of Medicine, Atlanta, Georgia
| | - Maria E. Barbian
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia
| | - Richard U. Eboka
- Department of Pathology, Emory University School of Medicine, Atlanta, Georgia
| | - Lauren Askew
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia
| | - Trevor M. Darby
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia
| | - Brian S. Robinson
- Department of Pathology, Emory University School of Medicine, Atlanta, Georgia
| | - Rheinallt M. Jones
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia,Emory Microbiome Research Center, Emory University School of Medicine, Atlanta, Georgia,Correspondence Address correspondence to: Rheinallt M. Jones, PhD, Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Emory University School of Medicine, 615 Michael Street, Atlanta, Georgia 30322. fax: (404) 727-8538.
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15
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Duan B, Shao L, Liu R, Msuthwana P, Hu J, Wang C. Lactobacillus rhamnosus GG defense against Salmonella enterica serovar Typhimurium infection through modulation of M1 macrophage polarization. Microb Pathog 2021; 156:104939. [PMID: 33964416 DOI: 10.1016/j.micpath.2021.104939] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 04/24/2021] [Accepted: 04/26/2021] [Indexed: 01/28/2023]
Abstract
Lactobacillus rhamnosus GG (LGG), a model probiotic strain, plays an important role in immune regulatory activity to prevent and treat intestinal inflammation or diarrhea. However, the effect of the immune modulation of LGG on macrophages to prevent Salmonella infection has not been thoroughly studied. In this study, C57BL/6 mice were pre-administered LGG for 7 days continuously, and then infected with Salmonella enterica subsp. enterica serovar Typhimurium (S. Typhimurium). The results of the in vivo study indicated that LGG could reduce body weight loss, death rate and intestinal inflammatory response caused by S. Typhimurium. LGG also limited S. Typhimurium dissemination to liver and spleen, and thereby protected against infection. In vitro study, we observed that LGG enhanced the phagocytic and bactericidal ability of macrophages and upregulated M1 macrophage characters (e.g. iNOS, NO and IL-12) against S. Typhimurium. In addition, LGG also elevated IL-10 secretion, which was helpful to ameliorate intestinal inflammatory injury caused by S. Typhimurium. In conclusion, LGG could modulate M1 macrophage polarization and offer protective effects against S. Typhimurium infection.
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Affiliation(s)
- Bingjie Duan
- College of Veterinary Medicine, Jilin Agricultural University, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Changchun, China
| | - Lina Shao
- College of Veterinary Medicine, Jilin Agricultural University, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Changchun, China
| | - Ruihan Liu
- College of Veterinary Medicine, Jilin Agricultural University, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Changchun, China
| | - Petunia Msuthwana
- College of Veterinary Medicine, Jilin Agricultural University, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Changchun, China
| | - Jingtao Hu
- College of Veterinary Medicine, Jilin Agricultural University, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Changchun, China.
| | - Chunfeng Wang
- College of Veterinary Medicine, Jilin Agricultural University, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Changchun, China.
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16
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Associations between the Gut Microbiota, Immune Reconstitution, and Outcomes of Allogeneic Hematopoietic Stem Cell Transplantation. ACTA ACUST UNITED AC 2021; 3. [PMID: 33552594 PMCID: PMC7864222 DOI: 10.20900/immunometab20210004] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Immune reconstitution following allogeneic hematopoietic stem cell transplantation (allo-HSCT) sets the stage for the goal of a successful transplant—the prevention of disease relapse without graft versus host disease (GVHD) and opportunistic infection. In both epidemiologic studies and in controlled animal studies, it is known that the gut microbiome (GM) can profoundly influence normal innate and adaptive immune development and can be altered by microbial transfer and antibiotics. Following allo-HSCT the GM has been shown to influence clinical outcomes but published associations between the GM and immune reconstitution post-allo-HSCT are lacking. In this viewpoint we propose that the extensive knowledge garnered from studying normal immune development can serve as a framework for studying immune development post-allo-HSCT. We summarize existing studies addressing the effect of the GM on immune ontogeny and draw associations with immune reconstitution and the GM post-allo-HSCT.
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