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Choi HJ, Shin D, Shin M, Yun B, Kang M, Yang HJ, Jeong DY, Kim Y, Oh S. Comparative Genomic and Functional Evaluations of Bacillus subtilis Newly Isolated from Korean Traditional Fermented Foods. Foods 2020; 9:E1805. [PMID: 33291832 PMCID: PMC7762004 DOI: 10.3390/foods9121805] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/20/2020] [Accepted: 11/28/2020] [Indexed: 01/28/2023] Open
Abstract
Many fermented foods are known to have beneficial effects on human and animal health, offering anti-aging and immunomodulatory benefits to host. Microorganisms contained in the fermented foods are known to provide metabolic products possibly improving host health. However, despite of a number of studies on the functional effects of the fermented foods, isolation and identification of the effective bacterial strains in the products are still in progress. The objective of this study was to isolate candidate functional strains in various Korean traditional fermented foods, including ganjang, gochujang, doenjang, and jeotgal, and evaluate their beneficial effects on the host, using Caenorhabditis elegans as a surrogate animal model. Among the 30 strains isolated, five Bacillus spp. were selected that increased the expression level of pmk-1, an innate immune gene of C. elegans. These strains extended the nematode lifespan and showed intestinal adhesion to the host. Based on the bioinformatic analyses of whole genome sequences and pangenomes, the five strains of Bacillus subtilis were genetically different from the strains found in East Asian countries and previously reported strains isolated from Korean fermented foods. Our findings suggest that the newly isolated B. subtilis strains can be a good candidate for probiotic with further in-depth investigation on health benefits and safety.
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Affiliation(s)
- Hye Jin Choi
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea; (H.J.C.); (M.S.)
| | - Donghyun Shin
- Department of Agricultural Convergence Technology, Jeonbuk National University, Jeonju 54896, Korea;
| | - Minhye Shin
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea; (H.J.C.); (M.S.)
| | - Bohyun Yun
- Department of Animal Science and Institute of Milk Genomics, Jeonbuk National University, Jeonju 54896, Korea;
| | - Minkyoung Kang
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea;
| | - Hee-Jong Yang
- Microbial Institute for Fermentation Industry, Sunchang, Jeonbuk 56048, Korea; (H.-J.Y.); (D.-Y.J.)
| | - Do-Youn Jeong
- Microbial Institute for Fermentation Industry, Sunchang, Jeonbuk 56048, Korea; (H.-J.Y.); (D.-Y.J.)
| | - Younghoon Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea; (H.J.C.); (M.S.)
| | - Sangnam Oh
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea;
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Raabis S, Li W, Cersosimo L. Effects and immune responses of probiotic treatment in ruminants. Vet Immunol Immunopathol 2019; 208:58-66. [PMID: 30712793 PMCID: PMC6526955 DOI: 10.1016/j.vetimm.2018.12.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 10/25/2018] [Accepted: 12/30/2018] [Indexed: 02/07/2023]
Abstract
Gut microbial colonization and establishment are vital to ruminant health and production. This review article focuses on current knowledge and methods used to understand and manipulate the gut microbial community in ruminant animals, with a special focus on probiotics treatment. This review highlights the most promising of studies in this area, including gut microbial colonization and establishment, effect of gastrointestinal tract microbial community on host mucosal innate immune function, impact of feeding strategies on gut microbial community, current probiotic treatments in ruminants, methods to manipulate the gut microbiota and associated antimicrobial compounds, and models and cell lines used in understanding the host immune response to probiotic treatments. As a lot of work in this area was done in humans and mice, this review article also includes up-to-date knowledge from relevant studies in human and mouse models. This review is a useful resource for scientists working in the areas of ruminant nutrition and health, and to researchers investigating the microbial ecology and its relation to animal health.
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Affiliation(s)
- Sarah Raabis
- School of Veterinary Medicine, University of Wisconsin-Madison, United States
| | - Wenli Li
- Dairy Forage Research Center, Agricultural Research Service, USDA, 1925 Linden Drive, Madison, WI, 53706, United States.
| | - Laura Cersosimo
- University of Florida, Department of Animal Sciences, Gainesville, FL, United States
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Lavefve L, Marasini D, Carbonero F. Microbial Ecology of Fermented Vegetables and Non-Alcoholic Drinks and Current Knowledge on Their Impact on Human Health. ADVANCES IN FOOD AND NUTRITION RESEARCH 2018; 87:147-185. [PMID: 30678814 DOI: 10.1016/bs.afnr.2018.09.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Fermented foods are currently experiencing a re-discovery, largely driven by numerous health benefits claims. While fermented dairy, beer, and wine (and other alcoholic fermented beverages) have been the subject of intensive research, other plant-based fermented foods that are in some case widely consumed (kimchi/sauerkraut, pickles, kombucha) have received less scientific attention. In this chapter, the current knowledge on the microbiology and potential health benefits of such plant-based fermented foods are presented. Kimchi is the most studied, characterized by primarily acidic fermentation by lactic acid bacteria. Anti-obesity and anti-hypertension properties have been reported for kimchi and other pickled vegetables. Kombucha is the most popular non-alcoholic fermented drink. Kombucha's microbiology is remarkable as it involves all fermenters described in known fermented foods: lactic acid bacteria, acetic acid bacteria, fungi, and yeasts. While kombucha is often hyped as a "super-food," only antioxidant and antimicrobial properties toward foodborne pathogens are well established; and it is unknown if these properties incur beneficial impact, even in vitro or in animal models. The mode of action that has been studied and demonstrated the most is the probiotic one. However, it can be expected that fermentation metabolites may be prebiotic, or influence host health directly. To conclude, plant-based fermented foods and drinks are usually safe products; few negative reports can be found, but more research, especially human dietary intervention studies, are warranted to substantiate any health claim.
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Affiliation(s)
- Laura Lavefve
- Department of Food Science and Center for Human Nutrition, University of Arkansas, Fayetteville, AR, United States; Direction des Etudes Et Prestations (DEEP), Institut Polytechnique UniLaSalle, Beauvais, France
| | - Daya Marasini
- Department of Food Science and Center for Human Nutrition, University of Arkansas, Fayetteville, AR, United States
| | - Franck Carbonero
- Department of Food Science and Center for Human Nutrition, University of Arkansas, Fayetteville, AR, United States.
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4
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Daliri EBM, Tango CN, Lee BH, Oh DH. Human microbiome restoration and safety. Int J Med Microbiol 2018; 308:487-497. [DOI: 10.1016/j.ijmm.2018.05.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 04/04/2018] [Accepted: 05/07/2018] [Indexed: 02/07/2023] Open
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5
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Effects of Lactobacillus plantarum Strain OLL2712 Culture Conditions on the Anti-inflammatory Activities for Murine Immune Cells and Obese and Type 2 Diabetic Mice. Appl Environ Microbiol 2017; 83:AEM.03001-16. [PMID: 28087537 DOI: 10.1128/aem.03001-16] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Accepted: 01/10/2017] [Indexed: 02/06/2023] Open
Abstract
Studies on the health-promoting effects of lactic acid bacteria (LAB) are numerous, but few provide examples of the relationship between LAB function and culture conditions. We verified the effect of differences in culture conditions on Lactobacillus plantarum OLL2712 functionality; this strain exhibits anti-inflammatory activity and preventive effects against metabolic disorders. We measured interleukin-10 (IL-10) and IL-12 production in murine immune cells treated with OLL2712 cells prepared under various culture conditions. The results showed that the IL-10-inducing activities of OLL2712 cells on murine immune cells differed dramatically between OLL2712 groups at different culture phases and using different culture medium components, temperatures, and neutralizing pHs. In particular, exponential-phase cells had much more IL-10-inducing activity than stationary-phase cells. We confirmed that the Toll-like receptor 2 (TLR2) stimulation activity of OLL2712 cells depended on culture conditions in conjunction with IL-10-inducing activity. We also demonstrated functional differences by culture phases in vivo; OLL2712 cells at exponential phase had more anti-inflammatory activity and anti-metabolic-disorder effects on obese and diabetic mice than those by their stationary-phase counterparts. These results suggest that culture conditions affect the functionality of anti-inflammatory LAB.IMPORTANCE While previous studies demonstrated that culture conditions affected the immunomodulatory properties of lactic acid bacteria (LAB), few have comprehensively investigated the relationship between culture conditions and LAB functionality. In this study, we demonstrated several culture conditions of Lactobacillus plantarum OLL2712 for higher anti-inflammatory activity. We also showed that culture conditions concretely influenced the health-promoting functions of OLL2712 in vivo, particularly against metabolic disorders. Further, we characterized a novel mechanism by which changing LAB culture conditions affected immunomodulatory properties. Our results suggest that culture condition optimization is important for the production of LAB with anti-inflammatory activity.
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Esmaeili SA, Mahmoudi M, Momtazi AA, Sahebkar A, Doulabi H, Rastin M. Tolerogenic probiotics: potential immunoregulators in Systemic Lupus Erythematosus. J Cell Physiol 2017; 232:1994-2007. [PMID: 27996081 DOI: 10.1002/jcp.25748] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 12/19/2016] [Indexed: 12/15/2022]
Abstract
Probiotics are commensal or nonpathogenic microbes that colonize the gastrointestinal tract and confer beneficial effects on the host through several mechanisms such as competitive exclusion, anti-bacterial effects, and modulation of immune responses. There is growing evidence supporting the immunomodulatory ability of some probiotics. Several experimental and clinical studies have been shown beneficial effect of some probiotic bacteria, particularly Lactobacillus and Bifidobacteria strains, on inflammatory and autoimmune diseases. Systemic lupus erythematosus (SLE) is an autoimmune disease that is mainly characterized by immune intolerance towards self-antigens. Some immunomodulatory probiotics have been found to regulate immune responses via tolerogenic mechanisms. Dendritic and T regulatory (Treg) cells, IL-6, IFN-γ, IL-17, and IL-23 can be considered as the most determinant dysregulated mediators in tolerogenic status. As demonstrated by documented experimental and clinical trials on inflammatory and autoimmune diseases, a number of probiotic bacterial strains can restore tolerance in host through modification of such dysregulated mediators. Since there are limited reports regarding to impact of probiotic supplementation in SLE patients, the preset review was aimed to suggest a number of probiotics bacteria, mainly from Bifidobacteria and Lactobacillus strains that are able to ameliorate immune responses. The aim was followed through literature survey on immunoregulatory probiotics that can restore tolerance and also modulate the important dysregulated pro/anti-inflammatory cytokines contributing to the pathogenesis of SLE.
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Affiliation(s)
- Seyed-Alireza Esmaeili
- Immunology Research Center, BuAli Research Institute, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Mahmoudi
- Immunology Research Center, BuAli Research Institute, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Abbas Momtazi
- Student Research Committee, Nanotechnology Research Center, Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hassan Doulabi
- Immunology Research Center, BuAli Research Institute, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Rastin
- Immunology Research Center, BuAli Research Institute, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Shiraishi T, Yokota S, Fukiya S, Yokota A. Structural diversity and biological significance of lipoteichoic acid in Gram-positive bacteria: focusing on beneficial probiotic lactic acid bacteria. BIOSCIENCE OF MICROBIOTA FOOD AND HEALTH 2016; 35:147-161. [PMID: 27867802 PMCID: PMC5107633 DOI: 10.12938/bmfh.2016-006] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 05/12/2016] [Indexed: 02/02/2023]
Abstract
Bacterial cell surface molecules are at the forefront of host-bacterium interactions. Teichoic acids are observed only in Gram-positive bacteria, and they are
one of the main cell surface components. Teichoic acids play important physiological roles and contribute to the bacterial interaction with their host. In
particular, lipoteichoic acid (LTA) anchored to the cell membrane has attracted attention as a host immunomodulator. Chemical and biological characteristics of
LTA from various bacteria have been described. However, most of the information concerns pathogenic bacteria, and information on beneficial bacteria, including
probiotic lactic acid bacteria, is insufficient. LTA is structurally diverse. Strain-level structural diversity of LTA is suggested to underpin its
immunomodulatory activities. Thus, the structural information on LTA in probiotics, in particular strain-associated diversity, is important for understanding
its beneficial roles associated with the modulation of immune response. Continued accumulation of structural information is necessary to elucidate the detailed
physiological roles and significance of LTA. In this review article, we summarize the current state of knowledge on LTA structure, in particular the structure
of LTA from lactic acid bacteria. We also describe the significance of structural diversity and biological roles of LTA.
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Affiliation(s)
- Tsukasa Shiraishi
- Department of Microbiology, Sapporo Medical University School of Medicine, Minami 1 Nishi 17, Chuo-ku, Sapporo, Hokkaido 060-8556, Japan
| | - Shinichi Yokota
- Department of Microbiology, Sapporo Medical University School of Medicine, Minami 1 Nishi 17, Chuo-ku, Sapporo, Hokkaido 060-8556, Japan
| | - Satoru Fukiya
- Laboratory of Microbial Physiology, Research Faculty of Agriculture, Hokkaido University, Kita 9 Nishi 9, Kita-ku, Sapporo, Hokkaido 060-8589, Japan
| | - Atsushi Yokota
- Laboratory of Microbial Physiology, Research Faculty of Agriculture, Hokkaido University, Kita 9 Nishi 9, Kita-ku, Sapporo, Hokkaido 060-8589, Japan
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Sahay B, Ge Y, Colliou N, Zadeh M, Weiner C, Mila A, Owen JL, Mohamadzadeh M. Advancing the use of Lactobacillus acidophilus surface layer protein A for the treatment of intestinal disorders in humans. Gut Microbes 2015; 6:392-7. [PMID: 26647142 PMCID: PMC4826124 DOI: 10.1080/19490976.2015.1107697] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Intestinal immunity is subject to complex and fine-tuned regulation dictated by interactions of the resident microbial community and their gene products with host innate cells. Deterioration of this delicate process may result in devastating autoinflammatory diseases, including inflammatory bowel disease (IBD), which primarily comprises Crohn's disease (CD) and ulcerative colitis (UC). Efficacious interventions to regulate proinflammatory signals, which play critical roles in IBD, require further scientific investigation. We recently demonstrated that rebalancing intestinal immunity via the surface layer protein A (SlpA) from Lactobacillus acidophilus NCFM potentially represents a feasible therapeutic approach to restore intestinal homeostasis. To expand on these findings, we established a new method of purifying bacterial SlpA, a new SlpA-specific monoclonal antibody, and found no SlpA-associated toxicity in mice. Thus, these data may assist in our efforts to determine the immune regulatory efficacy of SlpA in humans.
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Affiliation(s)
- Bikash Sahay
- Department of Infectious Diseases and Pathology; University of Florida; Gainesville, FL USA,Division of Hepatology, Gastroenterology, and Nutrition; University of Florida; Gainesville, FL USA
| | - Yong Ge
- Department of Infectious Diseases and Pathology; University of Florida; Gainesville, FL USA,Division of Hepatology, Gastroenterology, and Nutrition; University of Florida; Gainesville, FL USA
| | - Natacha Colliou
- Department of Infectious Diseases and Pathology; University of Florida; Gainesville, FL USA,Division of Hepatology, Gastroenterology, and Nutrition; University of Florida; Gainesville, FL USA
| | - Mojgan Zadeh
- Department of Infectious Diseases and Pathology; University of Florida; Gainesville, FL USA,Division of Hepatology, Gastroenterology, and Nutrition; University of Florida; Gainesville, FL USA
| | - Chelsea Weiner
- Department of Infectious Diseases and Pathology; University of Florida; Gainesville, FL USA,Division of Hepatology, Gastroenterology, and Nutrition; University of Florida; Gainesville, FL USA
| | - Ashley Mila
- Department of Infectious Diseases and Pathology; University of Florida; Gainesville, FL USA,Division of Hepatology, Gastroenterology, and Nutrition; University of Florida; Gainesville, FL USA
| | - Jennifer L Owen
- Department of Physiological Sciences; College of Veterinary Medicine; University of Florida; Gainesville, FL USA
| | - Mansour Mohamadzadeh
- Department of Infectious Diseases and Pathology; University of Florida; Gainesville, FL USA,Division of Hepatology, Gastroenterology, and Nutrition; University of Florida; Gainesville, FL USA,Correspondence to: Mansour Mohamadzadeh;
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9
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Mozaffari namin B, Daryani NE, Mirshafiey A, Yazdi MKS, Dallal MMS. Effect of probiotics on the expression of Barrett’s oesophagus biomarkers. J Med Microbiol 2015; 64:348-354. [DOI: 10.1099/jmm.0.000039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 02/07/2015] [Indexed: 12/19/2022] Open
Affiliation(s)
- Behrooz Mozaffari namin
- Microbiology and Gut Biology Group, University of Dundee, Ninewells Hospital Medical School, Dundee, UK
- Department of Microbiology of Pathobiology, School of Public Health, Tehran University of Medical Sciences, International Campus (TUMS-IC), Tehran, Iran
| | - Nasser Ebrahimi Daryani
- Department of Gastroenterology and Hepatology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Mirshafiey
- Division of Immunology, Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Kazem Sharifi Yazdi
- Department of Medical Laboratory Sciences, School of Para Medicine, Tehran University of Medical Sciences. Tehran, Iran
- Zoonosis Research Centre, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Mehdi Soltan Dallal
- Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Division of Food Microbiology, Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Konieczna P, Schiavi E, Ziegler M, Groeger D, Healy S, Grant R, O’Mahony L. Human dendritic cell DC-SIGN and TLR-2 mediate complementary immune regulatory activities in response to Lactobacillus rhamnosus JB-1. PLoS One 2015; 10:e0120261. [PMID: 25816321 PMCID: PMC4376398 DOI: 10.1371/journal.pone.0120261] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 01/21/2015] [Indexed: 02/07/2023] Open
Abstract
The microbiota is required for optimal host development and ongoing immune homeostasis. Lactobacilli are common inhabitants of the mammalian large intestine and immunoregulatory effects have been described for certain, but not all, strains. The mechanisms underpinning these protective effects are beginning to be elucidated. One such protective organism is Lactobacillus rhamnosus JB-1 (Lb. rhamnosus JB-1). Lb. murinus has no such anti-inflammatory protective effects and was used as a comparator organism. Human monocyte-derived dendritic cells (MDDCs) were co-incubated with bacteria and analysed over time for bacterial adhesion and intracellular processing, costimulatory molecule expression, cytokine secretion and induction of lymphocyte polarization. Neutralising antibodies were utilized to identify the responsible MDDC receptors. Lb. rhamnosus JB-1 adhered to MDDCs, but internalization and intracellular processing was significantly delayed, compared to Lb. murinus which was rapidly internalized and processed. Lb. murinus induced CD80 and CD86 expression, accompanied by high levels of cytokine secretion, while Lb. rhamnosus JB-1 was a poor inducer of costimulatory molecule expression and cytokine secretion. Lb. rhamnosus JB-1 primed MDDCs induced Foxp3 expression in autologous lymphocytes, while Lb. murinus primed MDDCs induced Foxp3, T-bet and Ror-γt expression. DC-SIGN was required for Lb. rhamnosus JB-1 adhesion and influenced IL-12 secretion, while TLR-2 influenced IL-10 and IL-12 secretion. Here we demonstrate that the delayed kinetics of bacterial processing by MDDCs correlates with MDDC activation and stimulation of lymphocytes. Thus, inhibition or delay of intracellular processing may be a novel strategy by which certain commensals may avoid the induction of proinflammatory responses.
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Affiliation(s)
- Patrycja Konieczna
- Swiss Institute of Allergy and Asthma Research, University of Zurich, Davos, Switzerland
| | - Elisa Schiavi
- Swiss Institute of Allergy and Asthma Research, University of Zurich, Davos, Switzerland
| | - Mario Ziegler
- Swiss Institute of Allergy and Asthma Research, University of Zurich, Davos, Switzerland
| | | | | | - Ray Grant
- Alimentary Health Pharma Davos, Davos, Switzerland
| | - Liam O’Mahony
- Swiss Institute of Allergy and Asthma Research, University of Zurich, Davos, Switzerland
- * E-mail:
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Gnotobiology and the Study of Complex Interactions between the Intestinal Microbiota, Probiotics, and the Host. Mucosal Immunol 2015. [DOI: 10.1016/b978-0-12-415847-4.00008-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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12
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Owen JL, Mohamadzadeh M. Microbial activation of gut dendritic cells and the control of mucosal immunity. J Interferon Cytokine Res 2013. [PMID: 23962004 DOI: 10.1089/jlr.2013.0046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Current data support a role for gut colonization in maintaining balanced mucosal and systemic immune responses and have suggested aberrant innate immune recognition of enteric bacteria as an initiator of the adaptive immune damage associated with inflammatory bowel disease (Crohn's disease and ulcerative colitis). In fact, data from human studies and experimental mouse models have implicated transformation of the gut microbiota from a beneficial symbiotic state to one of imbalance or "dysbiosis" in the pathogenesis of several autoinflammatory diseases, including allergic skin and respiratory disorders, rheumatoid arthritis, type I diabetes, and colorectal cancer. The host has evolved to co-exist and maintain a mutualistic relationship with the commensal microbes of the gut, and it is the function of the host innate immune system to initiate and maintain this homeostasis, while retaining the ability to respond appropriately to pathogenic organisms. In this review, we discuss the molecular and cellular interactions of the mucosal immune system that decide this delicate balance of mutualism. Furthermore, we will highlight the role of dendritic cells in preserving this precarious balance and how gene products of commensal microbes may play an integral role in re-establishing this balance once it has gone awry.
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Affiliation(s)
- Jennifer L Owen
- 1 Department of Infectious Diseases and Pathology, University of Florida , Gainesville, Florida
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13
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Owen JL, Mohamadzadeh M. Microbial activation of gut dendritic cells and the control of mucosal immunity. J Interferon Cytokine Res 2013; 33:619-31. [PMID: 23962004 DOI: 10.1089/jir.2013.0046] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Current data support a role for gut colonization in maintaining balanced mucosal and systemic immune responses and have suggested aberrant innate immune recognition of enteric bacteria as an initiator of the adaptive immune damage associated with inflammatory bowel disease (Crohn's disease and ulcerative colitis). In fact, data from human studies and experimental mouse models have implicated transformation of the gut microbiota from a beneficial symbiotic state to one of imbalance or "dysbiosis" in the pathogenesis of several autoinflammatory diseases, including allergic skin and respiratory disorders, rheumatoid arthritis, type I diabetes, and colorectal cancer. The host has evolved to co-exist and maintain a mutualistic relationship with the commensal microbes of the gut, and it is the function of the host innate immune system to initiate and maintain this homeostasis, while retaining the ability to respond appropriately to pathogenic organisms. In this review, we discuss the molecular and cellular interactions of the mucosal immune system that decide this delicate balance of mutualism. Furthermore, we will highlight the role of dendritic cells in preserving this precarious balance and how gene products of commensal microbes may play an integral role in re-establishing this balance once it has gone awry.
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Affiliation(s)
- Jennifer L Owen
- 1 Department of Infectious Diseases and Pathology, University of Florida , Gainesville, Florida
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14
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Owen JL, Mohamadzadeh M. Microbial activation of gut dendritic cells and the control of mucosal immunity. J Interferon Cytokine Res 2013. [PMID: 23962004 DOI: 10.1089/jir.2013.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Current data support a role for gut colonization in maintaining balanced mucosal and systemic immune responses and have suggested aberrant innate immune recognition of enteric bacteria as an initiator of the adaptive immune damage associated with inflammatory bowel disease (Crohn's disease and ulcerative colitis). In fact, data from human studies and experimental mouse models have implicated transformation of the gut microbiota from a beneficial symbiotic state to one of imbalance or "dysbiosis" in the pathogenesis of several autoinflammatory diseases, including allergic skin and respiratory disorders, rheumatoid arthritis, type I diabetes, and colorectal cancer. The host has evolved to co-exist and maintain a mutualistic relationship with the commensal microbes of the gut, and it is the function of the host innate immune system to initiate and maintain this homeostasis, while retaining the ability to respond appropriately to pathogenic organisms. In this review, we discuss the molecular and cellular interactions of the mucosal immune system that decide this delicate balance of mutualism. Furthermore, we will highlight the role of dendritic cells in preserving this precarious balance and how gene products of commensal microbes may play an integral role in re-establishing this balance once it has gone awry.
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Affiliation(s)
- Jennifer L Owen
- 1 Department of Infectious Diseases and Pathology, University of Florida , Gainesville, Florida
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15
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To yeast or not to yeast: a probiotic question. Clin Gastroenterol Hepatol 2013; 11:988-90. [PMID: 23602819 DOI: 10.1016/j.cgh.2013.03.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Accepted: 03/25/2013] [Indexed: 02/07/2023]
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16
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Martín R, Miquel S, Ulmer J, Kechaou N, Langella P, Bermúdez-Humarán LG. Role of commensal and probiotic bacteria in human health: a focus on inflammatory bowel disease. Microb Cell Fact 2013; 12:71. [PMID: 23876056 PMCID: PMC3726476 DOI: 10.1186/1475-2859-12-71] [Citation(s) in RCA: 140] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 07/18/2013] [Indexed: 02/08/2023] Open
Abstract
The human gut is one of the most complex ecosystems, composed of 1013-1014 microorganisms which play an important role in human health. In addition, some food products contain live bacteria which transit through our gastrointestinal tract and could exert beneficial effects on our health (known as probiotic effect). Among the numerous proposed health benefits attributed to commensal and probiotic bacteria, their capacity to interact with the host immune system is now well demonstrated. Currently, the use of recombinant lactic acid bacteria to deliver compounds of health interest is gaining importance as an extension of the probiotic concept. This review summarizes some of the recent findings and perspectives in the study of the crosstalk of both commensal and probiotic bacteria with the human host as well as the latest studies in recombinant commensal and probiotic bacteria. Our aim is to highlight the potential roles of recombinant bacteria in this ecosystem.
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Affiliation(s)
- Rebeca Martín
- INRA, UMR1319 Micalis, Jouy-en-Josas, F-78350, France
- AgroParisTech, UMR Micalis, Jouy-en-Josas, F-78350, France
| | - Sylvie Miquel
- INRA, UMR1319 Micalis, Jouy-en-Josas, F-78350, France
- AgroParisTech, UMR Micalis, Jouy-en-Josas, F-78350, France
| | - Jonathan Ulmer
- INRA, UMR1319 Micalis, Jouy-en-Josas, F-78350, France
- AgroParisTech, UMR Micalis, Jouy-en-Josas, F-78350, France
| | - Noura Kechaou
- INRA, UMR1319 Micalis, Jouy-en-Josas, F-78350, France
- AgroParisTech, UMR Micalis, Jouy-en-Josas, F-78350, France
| | - Philippe Langella
- INRA, UMR1319 Micalis, Jouy-en-Josas, F-78350, France
- AgroParisTech, UMR Micalis, Jouy-en-Josas, F-78350, France
| | - Luis G Bermúdez-Humarán
- INRA, UMR1319 Micalis, Jouy-en-Josas, F-78350, France
- AgroParisTech, UMR Micalis, Jouy-en-Josas, F-78350, France
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17
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van Baarlen P, Wells JM, Kleerebezem M. Regulation of intestinal homeostasis and immunity with probiotic lactobacilli. Trends Immunol 2013; 34:208-15. [PMID: 23485516 DOI: 10.1016/j.it.2013.01.005] [Citation(s) in RCA: 247] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Revised: 01/18/2013] [Accepted: 01/22/2013] [Indexed: 02/07/2023]
Abstract
The gut microbiota provide important stimuli to the human innate and adaptive immune system and co-mediate metabolic and immune homeostasis. Probiotic bacteria can be regarded as part of the natural human microbiota, and have been associated with improving homeostasis, albeit with different levels of success. Composition of microbiota, probiotic strain identity, and host genetic differences may account for differential modulation of immune responses by probiotics. Here, we review the mechanisms of immunomodulating capacities of specific probiotic strains, the responses they can induce in the host, and how microbiota and genetic differences between individuals may co-influence host responses and immune homeostasis.
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Affiliation(s)
- Peter van Baarlen
- Host Microbe Interactomics Group, Wageningen University, De Elst 1, 6708WD Wageningen, The Netherlands
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18
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Lightfoot YL, Mohamadzadeh M. Tailoring gut immune responses with lipoteichoic acid-deficient Lactobacillus acidophilus. Front Immunol 2013; 4:25. [PMID: 23390423 PMCID: PMC3565175 DOI: 10.3389/fimmu.2013.00025] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 01/21/2013] [Indexed: 01/11/2023] Open
Abstract
As highlighted by the development of intestinal autoinflammatory disorders when tolerance is lost, homeostatic interactions between gut microbiota, resident immune cells, and the gut epithelium are key in the maintenance of gastrointestinal health. Gut immune responses, whether stimulatory or regulatory, are dictated by the activated dendritic cells (DCs) that first interact with microorganisms and their gene products to then elicit T and B cell responses. Previously, we have demonstrated that treatment with genetically modified Lactobacillus acidophilus is sufficient to tilt the immune balance from proinflammatory to regulatory in experimental models of colitis and colon cancer. Given the significant role of DCs in efficiently orchestrating intestinal immune responses, characterization of the signals induced within these cells by the surface layer molecules, such as lipoteichoic acid (LTA), and proteins of L. acidophilus is critical for future treatment and prevention of gastrointestinal diseases. Here, we discuss the potential regulatory pathways involved in the downregulation of pathogenic inflammation in the gut, and explore questions regarding the immune responses to LTA-deficient L. acidophilus that require future studies.
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Affiliation(s)
- Yaíma L Lightfoot
- Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida Gainesville, FL, USA ; Division of Gastroenterology Hepatology & Nutrition, Department of Medicine, College of Medicine, University of Florida Gainesville, FL, USA
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19
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Impact of Lactobacillus plantarum sortase on target protein sorting, gastrointestinal persistence, and host immune response modulation. J Bacteriol 2012; 195:502-9. [PMID: 23175652 DOI: 10.1128/jb.01321-12] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Sortases are transpeptidases that couple surface proteins to the peptidoglycan of Gram-positive bacteria, and several sortase-dependent proteins (SDPs) have been demonstrated to be crucial for the interactions of pathogenic and nonpathogenic bacteria with their hosts. Here, we studied the role of sortase A (SrtA) in Lactobacillus plantarum WCFS1, a model Lactobacillus for probiotic organisms. An isogenic srtA deletion derivative was constructed which did not show residual SrtA activity. DNA microarray-based transcriptome analysis revealed that the srtA deletion had only minor impact on the full-genome transcriptome of L. plantarum, while the expression of SDP-encoding genes remained completely unaffected. Mass spectrometry analysis of the bacterial cell surface proteome, which was assessed by trypsinization of intact bacterial cells and by LiCl protein extraction, revealed that SrtA is required for the appropriate subcellular location of specific SDPs and for their covalent coupling to the cell envelope, respectively. We further found that SrtA deficiency did not affect the persistence and/or survival of L. plantarum in the gastrointestinal tract of mice. In addition, an in vitro immature dendritic cell (iDC) assay revealed that the removal of surface proteins by LiCl strongly affected the proinflammatory signaling properties of the SrtA-deficient strain but not of the wild type, which suggests a role of SDPs in host immune response modulation.
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