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Chen D, Chen C, Guo C, Zhang H, Liang Y, Cheng Y, Qu H, Wa Y, Zhang C, Guan C, Qian J, Gu R. The regulation of simulated artificial oro-gastrointestinal transit stress on the adhesion of Lactobacillus plantarum S7. Microb Cell Fact 2023; 22:170. [PMID: 37660047 PMCID: PMC10474686 DOI: 10.1186/s12934-023-02174-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 08/09/2023] [Indexed: 09/04/2023] Open
Abstract
BACKGROUND Oro-gastrointestinal stress in the digestive tract is the main stress to which orally administered probiotics are exposed. The regulation of oro-gastrointestinal transit (OGT) stress on the adhesion and survival of probiotics under continuous exposure to simulated salivary-gastric juice-intestinal juice was researched in this study. RESULTS Lactobacillus plantarum S7 had a higher survival rate after exposure to simulated OGT1 (containing 0.15% bile salt) stress and OGT2 (containing 0.30% bile salt) stress. The adhesion ability of L. plantarum S7 was significantly increased by OGT1 stress (P < 0.05) but was not changed significantly by OGT2 stress (P > 0.05), and this trend was also observed in terms of the thickness of the surface material of L. plantarum S7 cells. The expression of surface proteins of L. plantarum S7, such as the 30 S ribosomal proteins, mucus-binding protein and S-layer protein, was significantly downregulated by OGT stress (P < 0.05); meanwhile, the expression of moonlight proteins, such as glyceraldehyde-3-phosphate dehydrogenase (GAPDH), phosphoglycorate kinase (PGK), beta-phosphoglucomutase (PGM1), GroEL and glucose-6-phosphate isomerase (PGI), was significantly upregulated (P < 0.05). However, the upregulation of GAPDH, PGK, PGM1 and PGI mediated by OGT1 stress was greater than those mediated by OGT2 stress. The quorum sensing pathway of L. plantarum S7 was changed significantly by OGT stress compared with no OGT stress cells (P < 0.05), and the expression of Luxs in the pathway was significantly upregulated by OGT1 stress (P < 0.05). The ABC transportation pathway was significantly altered by OGT1 stress (P < 0.05), of which the expression of the peptide ABC transporter substrate-binding protein and energy-coupling factor transporter ATP-binding protein EcfA was significantly upregulated by OGT stress (P < 0.05). The glycolide metabolism pathway was significantly altered by OGT1 stress compared with that in response to OGT2 stress (P < 0.05). CONCLUSION L. plantarum S7 had a strong ability to resist OGT stress, which was regulated by the proteins and pathways related to OGT stress. The adhesion ability of L. plantarum S7 was enhanced after continuous exposure to OGT1 stress, making it a potential probiotic with a promising future for application.
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Affiliation(s)
- Dawei Chen
- College of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China
- Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, 225127, Jiangsu, China
- Jiangsu Yuhang Food Technology Co., Ltd, Yancheng, 224000, Jiangsu, China
| | - Chunmeng Chen
- College of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China
- Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, 225127, Jiangsu, China
| | - Congcong Guo
- College of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China
- Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, 225127, Jiangsu, China
| | - Hui Zhang
- Yangzhou Hospital of Traditional Chinese Medicine, Yangzhou, 225127, Jiangsu, China
| | - Yating Liang
- College of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China
- Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, 225127, Jiangsu, China
| | - Yue Cheng
- College of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China
- Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, 225127, Jiangsu, China
| | - Hengxian Qu
- College of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China
- Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, 225127, Jiangsu, China
| | - Yunchao Wa
- College of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China
- Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, 225127, Jiangsu, China
| | - Chenchen Zhang
- College of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China
- Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, 225127, Jiangsu, China
| | - Chengran Guan
- College of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China
- Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, 225127, Jiangsu, China
| | - Jianya Qian
- College of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China
- Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, 225127, Jiangsu, China
| | - Ruixia Gu
- College of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China.
- Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, 225127, Jiangsu, China.
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Keresztény T, Libisch B, Orbe SC, Nagy T, Kerényi Z, Kocsis R, Posta K, Papp PP, Olasz F. Isolation and Characterization of Lactic Acid Bacteria With Probiotic Attributes From Different Parts of the Gastrointestinal Tract of Free-living Wild Boars in Hungary. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10113-2. [PMID: 37353593 DOI: 10.1007/s12602-023-10113-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/15/2023] [Indexed: 06/25/2023]
Abstract
Lactic acid bacteria (LAB) in the microbiota play an important role in human and animal health and, when used as probiotics, can contribute to an increased growth performance in livestock management. Animals living in their native habitat can serve as natural sources of microorganisms, so isolation of LAB strains from wild boars could provide the opportunity to develop effective probiotics to improve production in swine industry. In this study, the probiotic potential of 56 LAB isolates, originated from the ileum, colon, caecum and faeces of 5 wild boars, were assessed in vitro in details. Their taxonomic identity at species level and their antibacterial activity against four representative strains of potentially pathogenic bacteria were determined. The ability to tolerate low pH and bile salt, antibiotic susceptibility, bile salt hydrolase activity and lack of hemolysis were tested. Draft genome sequences of ten Limosilactobacillus mucosae and three Leuconostoc suionicum strains were determined. Bioinformatic analysis excluded the presence of any known acquired antibiotic resistance genes. Three genes, encoding mesentericin B105 and two different bacteriocin-IIc class proteins, as well as two genes with possible involvement in mesentericin secretion (mesE) and transport (mesD) were identified in two L. suionicum strains. Lam29 protein, a component of an ABC transporter with proved function as mucin- and epithelial cell-adhesion factor, and a bile salt hydrolase gene were found in all ten L. mucosae genomes. Comprehensive reconsideration of all data helps to select candidate strains to assess their probiotic potential further in animal experiments.
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Affiliation(s)
- Tibor Keresztény
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences (MATE), 2100, Gödöllő, Hungary
- Doctoral School of Biological Sciences, Hungarian University of Agriculture and Life Sciences, 2100, Gödöllő, Hungary
| | - Balázs Libisch
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences (MATE), 2100, Gödöllő, Hungary
| | - Stephanya Corral Orbe
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences (MATE), 2100, Gödöllő, Hungary
- Doctoral School of Biological Sciences, Hungarian University of Agriculture and Life Sciences, 2100, Gödöllő, Hungary
| | - Tibor Nagy
- Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life, Sciences, 2100, Gödöllő, Hungary
| | - Zoltán Kerényi
- Hungarian Dairy Research Institute Ltd, 9200, Mosonmagyaróvár, Hungary
| | - Róbert Kocsis
- Hungarian Dairy Research Institute Ltd, 9200, Mosonmagyaróvár, Hungary
| | - Katalin Posta
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences (MATE), 2100, Gödöllő, Hungary
| | - Péter P Papp
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences (MATE), 2100, Gödöllő, Hungary
| | - Ferenc Olasz
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences (MATE), 2100, Gödöllő, Hungary.
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Anglenius H, Mäkivuokko H, Ahonen I, Forssten SD, Wacklin P, Mättö J, Lahtinen S, Lehtoranta L, Ouwehand AC. In Vitro Screen of Lactobacilli Strains for Gastrointestinal and Vaginal Benefits. Microorganisms 2023; 11:microorganisms11020329. [PMID: 36838294 PMCID: PMC9967617 DOI: 10.3390/microorganisms11020329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/21/2023] [Accepted: 01/23/2023] [Indexed: 01/31/2023] Open
Abstract
Traditional probiotics comprise mainly lactic acid bacteria that are safe for human use, tolerate acid and bile, and adhere to the epithelial lining and mucosal surfaces. In this study, one hundred commercial and non-commercial strains that were isolated from human feces or vaginal samples were tested with regards to overall growth in culture media, tolerance to acid and bile, hydrogen peroxide (H2O2) production, and adhesion to vaginal epithelial cells (VECs) and to blood group antigens. As a result, various of the tested lactobacilli strains were determined to be suitable for gastrointestinal or vaginal applications. Commercial strains grew better than the newly isolated strains, but tolerance to acid was a common property among all tested strains. Tolerance to bile varied considerably between the strains. Resistance to bile and acid correlated well, as did VEC adhesion and H2O2 production, but H2O2 production was not associated with resistance to bile or acid. Except for L. iners strains, vaginal isolates had better overall VEC adhesion and higher H2O2 production. Species- and strain-specific differences were evident for all parameters. Rank-ordered clustering with nine clusters was used to identify strains that were suitable for gastrointestinal or vaginal health, demonstrating that the categorization of strains for targeted health indications is possible based on the parameters that were measured in this study.
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Affiliation(s)
- Heli Anglenius
- IFF Health and Biosciences, 02460 Kantvik, Finland
- Correspondence:
| | | | | | | | | | - Jaana Mättö
- Finnish Red Cross Blood Service, 00310 Helsinki, Finland
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Godefroy E, Barbé L, Le Moullac-Vaidye B, Rocher J, Breiman A, Leuillet S, Mariat D, Chatel JM, Ruvoën-Clouet N, Carton T, Jotereau F, Le Pendu J. Microbiota-induced regulatory T cells associate with FUT2-dependent susceptibility to rotavirus gastroenteritis. Front Microbiol 2023; 14:1123803. [PMID: 36922975 PMCID: PMC10008897 DOI: 10.3389/fmicb.2023.1123803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 02/03/2023] [Indexed: 03/03/2023] Open
Abstract
The FUT2 α1,2fucosyltransferase contributes to the synthesis of fucosylated glycans used as attachment factors by several pathogens, including noroviruses and rotaviruses, that can induce life-threatening gastroenteritis in young children. FUT2 genetic polymorphisms impairing fucosylation are strongly associated with resistance to dominant strains of both noroviruses and rotaviruses. Interestingly, the wild-type allele associated with viral gastroenteritis susceptibility inversely appears to be protective against several inflammatory or autoimmune diseases for yet unclear reasons, although a FUT2 influence on microbiota composition has been observed. Here, we studied a cohort of young healthy adults and showed that the wild-type FUT2 allele was associated with the presence of anti-RVA antibodies, either neutralizing antibodies or serum IgA, confirming its association with the risk of RVA gastroenteritis. Strikingly, it was also associated with the frequency of gut microbiota-induced regulatory T cells (Tregs), so-called DP8α Tregs, albeit only in individuals who had anti-RVA neutralizing antibodies or high titers of anti-RVA IgAs. DP8α Tregs specifically recognize the human symbiont Faecalibacterium prausnitzii, which strongly supports their induction by this anti-inflammatory bacterium. The proportion of F. prausnitzii in feces was also associated with the FUT2 wild-type allele. These observations link the FUT2 genotype with the risk of RVA gastroenteritis, the microbiota and microbiota-induced DP8α Treg cells, suggesting that the anti-RVA immune response might involve an induction/expansion of these T lymphocytes later providing a balanced immunological state that confers protection against inflammatory diseases.
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Affiliation(s)
- Emmanuelle Godefroy
- Inserm, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1303/EMR6001, Nantes Université, Nantes, France
| | - Laure Barbé
- Inserm, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1303/EMR6001, Nantes Université, Nantes, France
| | - Béatrice Le Moullac-Vaidye
- Inserm, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1303/EMR6001, Nantes Université, Nantes, France
| | - Jézabel Rocher
- Inserm, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1303/EMR6001, Nantes Université, Nantes, France
| | - Adrien Breiman
- Inserm, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1303/EMR6001, Nantes Université, Nantes, France.,CHU de Nantes, Nantes, France
| | | | - Denis Mariat
- INRAE, AgroParisTech, UMR1319, MICALIS, Université Paris Saclay, Jouy en Josas, France
| | - Jean-Marc Chatel
- INRAE, AgroParisTech, UMR1319, MICALIS, Université Paris Saclay, Jouy en Josas, France
| | - Nathalie Ruvoën-Clouet
- Inserm, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1303/EMR6001, Nantes Université, Nantes, France.,ONIRIS, Ecole Nationale Vétérinaire, Agroalimentaire et de l'Alimentation, Nantes, France
| | | | - Francine Jotereau
- Inserm, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1303/EMR6001, Nantes Université, Nantes, France
| | - Jacques Le Pendu
- Inserm, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1303/EMR6001, Nantes Université, Nantes, France
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5
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Hu M, Zhang X, Li J, Chen L, He X, Sui T. Fucosyltransferase 2: A Genetic Risk Factor for Intestinal Diseases. Front Microbiol 2022; 13:940196. [PMID: 35923409 PMCID: PMC9339987 DOI: 10.3389/fmicb.2022.940196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 06/20/2022] [Indexed: 12/26/2022] Open
Abstract
The fucosyltransferase 2 gene (FUT2) mediates the synthesis of histoblood group antigens (HBGA) that occur in vivo from multiple organs, particularly on the surface of intestinal epithelial cells and body fluids. To date, many studies have demonstrated that the interaction of HBGA with the host microbiota is the cause of pathogenesis of intestinal diseases, making FUT2 non-secretor a risk factor for inflammatory bowel disease (IBD) due to the lack of HBGA. As HBGA also acts as an attachment site for norovirus (NoV) and rotavirus (RV), the non-secretor becomes a protective factor for both viral infections. In addition, the interaction of norovirus and rotavirus with symbiotic bacteria has been found to play an important role in regulating enteroviral infection in IBD. Given the current incomplete understanding of the complex phenomenon and the underlying pathogenesis of intestinal diseases such as IBD, it has recently been hypothesized that the FUT2 gene regulates intestinal bacteria through attachment sites, may help to unravel the role of FUT2 and intestinal flora in the mechanism of intestinal diseases in the future, and provide new ideas for the prevention and treatment of intestinal diseases through more in-depth studies.
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6
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Zheng S, Song J, Qin X, Yang K, Liu M, Yang C, Nyachoti CM. Dietary supplementation of red-osier dogwood polyphenol extract changes the ileal microbiota structure and increases Lactobacillus in a pig model. AMB Express 2021; 11:145. [PMID: 34714436 PMCID: PMC8556438 DOI: 10.1186/s13568-021-01303-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 10/16/2021] [Indexed: 01/22/2023] Open
Abstract
Red-osier dogwood (ROD) extract contains a lot of polyphenols that have the potential for modulation of gut microbiota. However, little information is available about its prebiotic properties. This study investigated the impact of ROD polyphenol extract on the ileal microbiota with dietary supplementation of ROD polyphenol extract in a pig model. The data indicated that supplementation of ROD polyphenol extract significantly increased class Bacilli, order Lactobacillales and family lactobacillaceae. Within family lactobacillaceae, Lactobacillus was the main responder by increasing from 5.92% to 35.09%. Further analysis showed that ROD polyphenol extract improved two species Lactobacillus delbrueckii and Lactobacillus mucus. The results of this study suggested that ROD polyphenol extract has the potential to play prebiotic role and confer health benefit through modifying gut microbiota.
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Cheng S, Hu J, Wu X, Pan JA, Jiao N, Li Y, Huang Y, Lin X, Zou Y, Chen Y, Zhu L, Zhi M, Lan P. Altered gut microbiome in FUT2 loss-of-function mutants in support of personalized medicine for inflammatory bowel diseases. J Genet Genomics 2021; 48:771-80. [PMID: 34419617 DOI: 10.1016/j.jgg.2021.08.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 08/03/2021] [Accepted: 08/05/2021] [Indexed: 12/26/2022]
Abstract
The FUT2 loss-of-function mutations are highly prevalent and are associated with inflammatory bowel disease (IBD). To investigate the impact of FUT2 loss-of-function mutation on the gut microbiota in patients with IBD, 81 endoscopically confirmed IBD patients were genotyped and divided into 3 groups: homozygous for functional FUT2 genes (SeSe), with one copy of non-functional FUT2 gene (Sese), or homozygous for non-functional FUT2 genes (sese). Escherichia, which attaches to fucosylated glycoconjugates, was the only abundant genus exhibiting decreased abundance in sese patients. Compared with SeSe or Sese patients, sese patients exhibited higher abundance in CD8+ inducing Alistipe and Phascolarctobacterium and Th17 inducing Erysipelotrichaceae UCG-003. Counter-intuitively, butyrate-producing bacteria were more abundant in sese patients. Consistently, metabolomics analysis found higher levels of butyrate in sese patients. Our data support the hypothesis that FUT2 loss-of-function mutation participates in the IBD pathogenesis by decreasing binding sites for adherent bacteria and thus altering the gut microbiota. Decreased abundances of adherent bacteria may allow the overgrowth of bacteria that induce inflammatory T cells, leading to intestinal inflammation. As FUT2 loss-of-function mutations are highly prevalent, the identification of T cell inducing bacteria in sese patients could be valuable for the development of personalized microbial intervention for IBD.
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Kudelka MR, Stowell SR, Cummings RD, Neish AS. Intestinal epithelial glycosylation in homeostasis and gut microbiota interactions in IBD. Nat Rev Gastroenterol Hepatol 2020; 17:597-617. [PMID: 32710014 PMCID: PMC8211394 DOI: 10.1038/s41575-020-0331-7] [Citation(s) in RCA: 121] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/05/2020] [Indexed: 02/08/2023]
Abstract
Inflammatory bowel disease (IBD) affects 6.8 million people globally. A variety of factors have been implicated in IBD pathogenesis, including host genetics, immune dysregulation and gut microbiota alterations. Emerging evidence implicates intestinal epithelial glycosylation as an underappreciated process that interfaces with these three factors. IBD is associated with increased expression of truncated O-glycans as well as altered expression of terminal glycan structures. IBD genes, glycosyltransferase mislocalization, altered glycosyltransferase and glycosidase expression and dysbiosis drive changes in the glycome. These glycan changes disrupt the mucus layer, glycan-lectin interactions, host-microorganism interactions and mucosal immunity, and ultimately contribute to IBD pathogenesis. Epithelial glycans are especially critical in regulating the gut microbiota through providing bacterial ligands and nutrients and ultimately determining the spatial organization of the gut microbiota. In this Review, we discuss the regulation of intestinal epithelial glycosylation, altered epithelial glycosylation in IBD and mechanisms for how these alterations contribute to disease pathobiology. We hope that this Review provides a foundation for future studies on IBD glycosylation and the emergence of glycan-inspired therapies for IBD.
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Affiliation(s)
- Matthew R Kudelka
- Medical Scientist Training Program, Emory University School of Medicine, Atlanta, GA, USA
- Department of Internal Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Sean R Stowell
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Richard D Cummings
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Andrew S Neish
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, USA.
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Zhou R, Llorente C, Cao J, Gao B, Duan Y, Jiang L, Wang Y, Kumar V, Stärkel P, Bode L, Fan X, Schnabl B. Deficiency of Intestinal α1-2-Fucosylation Exacerbates Ethanol-Induced Liver Disease in Mice. Alcohol Clin Exp Res 2020; 44:1842-1851. [PMID: 32628772 PMCID: PMC7808344 DOI: 10.1111/acer.14405] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 06/09/2020] [Accepted: 06/19/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Fucosyltransferase 2 (Fut2)-mediated intestinal α1-2-fucosylation is important in maintaining a symbiotic host-microbiota relationship and can protect against several pathogens. Intestinal dysbiosis is an important factor for the progression of experimental ethanol (EtOH)-induced liver disease, but the role of Fut2 in modulating the intestinal glycocalyx during alcohol-associated liver disease is unknown. We investigated the role of Fut2-mediated intestinal α1-2-fucosylation for the development of alcohol-associated liver disease. METHODS Immunohistochemistry staining was applied to evaluate α1-2-fucosylation in duodenal biopsies from patients with alcohol use disorder. Wild-type (WT) and Fut2-deficient littermate mice were subjected to Lieber-DeCarli models of chronic EtOH administration and the chronic-binge EtOH diet (NIAAA model). RESULTS Intestinal α1-2-fucosylation was down-regulated in patients with alcohol use disorder. Lack of α1-2-fucosylation in Fut2-deficient mice exacerbates chronic EtOH-induced liver injury, steatosis, and inflammation without affecting EtOH metabolism. Dietary supplementation of the α1-2-fucosylated glycan 2'-fucosyllactose (2'-FL) ameliorates EtOH-induced liver disease in Fut2-deficient mice in the NIAAA model. Despite no direct effects on growth of Enterococcus faecalis in vitro, intestinal α1-2-fucosylation reduces colonization of cytolysin-positive E. faecalis in the intestine of EtOH-fed mice. CONCLUSIONS Intestinal α1-2-fucosylation acts as a host-protective mechanism against EtOH-induced liver disease. 2'-FL is an oligosaccharide naturally present in human milk that could be considered as therapeutic agent for alcohol-associated liver disease.
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Affiliation(s)
- Rongrong Zhou
- Department of Infectious Diseases, Xiangya Hospital, Central South University, and Key Laboratory of Viral Hepatitis, Hunan, Changsha, China
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Cristina Llorente
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Jinling Cao
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
- College of Food Science and Engineering, Shanxi Agricultural University, Shanxi, Taigu, China
| | - Bei Gao
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Yi Duan
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Lu Jiang
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Yanhan Wang
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Vipin Kumar
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Peter Stärkel
- St Luc University Hospital, Université Catholique de Louvain, Brussels, Belgium
| | - Lars Bode
- Department of Pediatrics and Larsson-Rosenquist Foundation Mother-Milk-Infant Center of Research Excellence (MOMI CORE), University of California San Diego, La Jolla, CA, USA
| | - Xuegong Fan
- Department of Infectious Diseases, Xiangya Hospital, Central South University, and Key Laboratory of Viral Hepatitis, Hunan, Changsha, China
| | - Bernd Schnabl
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
- Department of Medicine, VA San Diego Healthcare System, San Diego, CA, USA
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Breyer GM, Arechavaleta NN, Siqueira FM, de Souza da Motta A. Characterization of Lactic Acid Bacteria in Raw Buffalo Milk: a Screening for Novel Probiotic Candidates and Their Transcriptional Response to Acid Stress. Probiotics Antimicrob Proteins 2021; 13:468-83. [PMID: 32829420 DOI: 10.1007/s12602-020-09700-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Lactic acid bacteria (LAB) are important microorganisms for the food industry due to their functional activity, as starters and potential probiotic strains. With that in mind, we explored the LAB diversity in raw buffalo milk, screening for novel potential probiotic strains. A total of 11 strains were identified by combination of MALDI-TOF and partial 16S rDNA sequencing and selected as potential probiotic candidates. Bacteria innocuity assessment was performed by determining antimicrobial susceptibility and the presence of virulence factors. Antagonism activity against Escherichia coli, Pseudomonas aeruginosa, Listeria monocytogenes and Staphylococcus aureus was assessed, as well as milk proteolytic activity and exopolysaccharides production. Seven strains were identified as innocuous and two of them, Lactobacillus rhamnosus LB1.5 and Lactobacillus paracasei LB6.4 were selected for further probiotic potential analyses. Both strains demonstrated adhesion ability to Caco-2 cells, coaggregated with S. aureus and E. coli and maintained cell viability after gastrointestinal simulation in vitro, suggesting their probiotic potential. Furthermore, the transcriptional response of Lact. rhamnosus LB1.5 and Lact. paracasei LB6.4 to in vitro acid stress was assessed by RT-qPCR targeting seven genes related to adhesion, aggregation, stress tolerance, DNA repair and central metabolism. The association between the transcriptional responses and the maintenance of cell viability after gastrointestinal simulation highlights the genetic ability as probiotic of the two selected strains. Finally, we have concluded that Lact. rhamnosus LB1.5 and Lact. paracasei LB6.4 are important probiotic candidates to further in vivo studies.
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Lu M, Li RW, Zhao H, Yan X, Lillehoj HS, Sun Z, Oh S, Wang Y, Li C. Effects of Eimeria maxima and Clostridium perfringens infections on cecal microbial composition and the possible correlation with body weight gain in broiler chickens. Res Vet Sci 2020; 132:142-149. [PMID: 32575030 DOI: 10.1016/j.rvsc.2020.05.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 04/19/2020] [Accepted: 05/16/2020] [Indexed: 02/07/2023]
Abstract
With the voluntary and regulatory withdrawal of antibiotic growth promoters from animal feed, coccidiosis and necrotic enteritis (NE) emerge as the top two enteric poultry infectious diseases responsible for major economic loss worldwide. The objective of this study was to investigate the correlation between the cecal microbiota compositions with the growth trait after coccidiosis and NE. In this study, the effects of Eimeria maxima and/or Clostridium perfringens infections on the microbial composition and potential correlation with the body weight gain were investigated in broiler chickens using 16S rRNA gene sequencing. E. maxima and C. perfringens coinfection successfully induced NE with its typical gut lesions and significant reductions in the percentage of relative body weight gain (RBWG%). The NE challenge model did not affect cecal microbial diversity, but influenced the cecal microbial composition. KEGG enzymes in microbiota were significantly altered in abundance following dual infections. Furthermore, significant correlations between cecal microbiota modules and RBWG% were identified in the sham control, E. maxima or C. perfringens infected groups. Understanding of host-microbiota interaction in NE would enhance the development of antibiotics-independent strategies to reduce the harmful effect of NE on the gut microbiota structure, and improve the gut health and poultry production.
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Affiliation(s)
- Mingmin Lu
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service (ARS), US Department of Agriculture (USDA), Beltsville, MD, USA
| | - Robert W Li
- Animal Genomics & Improvement Laboratory, ARS, USDA, Beltsville, MD, USA
| | - Hongyan Zhao
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service (ARS), US Department of Agriculture (USDA), Beltsville, MD, USA; College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Xianghe Yan
- Environment Microbial and Food Safety Laboratory, ARS, USDA, Beltsville, MD, USA
| | - Hyun S Lillehoj
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service (ARS), US Department of Agriculture (USDA), Beltsville, MD, USA
| | - Zhifeng Sun
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service (ARS), US Department of Agriculture (USDA), Beltsville, MD, USA
| | - SungTak Oh
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service (ARS), US Department of Agriculture (USDA), Beltsville, MD, USA
| | - Yueying Wang
- Animal Genomics & Improvement Laboratory, ARS, USDA, Beltsville, MD, USA; College of Animal Husbandry and Veterinary Science, Henan Agricultural University, Zhengzhou, China
| | - Charles Li
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service (ARS), US Department of Agriculture (USDA), Beltsville, MD, USA.
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12
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Ordiz MI, Janssen S, Humphrey G, Ackermann G, Stephenson K, Agapova S, Divala O, Kaimila Y, Maleta K, Zhong C, Knight R, Trehan I, Tarr PI, Rusconi B, Manary MJ. The effect of legume supplementation on the gut microbiota in rural Malawian infants aged 6 to 12 months. Am J Clin Nutr 2020; 111:884-892. [PMID: 32047925 PMCID: PMC8287943 DOI: 10.1093/ajcn/nqaa011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Accepted: 01/21/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Common bean and cowpea contain about 25% protein and 25% fiber, and are recommended as complementary foods in sub-Saharan Africa. OBJECTIVE The objective of this study was to determine if a daily legume supplement given to Malawian infants aged 6 to 12 mo alters the 16S configuration of the fecal microbiota as read out by amplicon sequence variants (ASVs). METHODS This study was conducted within the context of a randomized, double-blind, controlled clinical trial to assess whether cowpea or common bean supplementation reduced intestinal permeability or increased linear growth. There were 2 village clusters in which the study was conducted. Fresh stool collections were flash frozen from 236 infants at ≤6 time points. The stools were sequenced using Earth Microbiome project protocols and data were processed using Qiime and Qiita, open-source, validated software packages. α-diversity was measured using the Faith's test. The 16S configuration was characterized by determining the weighted UniFrac distances of the ASVs and comparing them using permutational multivariate ANOVA. RESULTS Among the 1249 samples analyzed, the α-diversity of the fecal microbiome was unchanged among subjects after initiation of legume supplementation. Neither cowpea nor common bean altered the overall 16S configuration at any age. The 16S configuration differed between children with adequate and poor linear growth aged from 6 to 9 mo, but no specific ASVs differed in relative abundance. The 16S configuration differed between children with normal and abnormal intestinal permeability at 9 mo, but no specific ASVs differed in relative abundance. Among categorical characteristics of the population associated with different 16S configurations, village cluster was most pronounced. CONCLUSION Legume supplementation in breastfed, rural African infants did not affect the structure of the gut microbial communities until the children were aged 9 mo. This trial was registered at clinicaltrials.gov as NCT02472262.
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Affiliation(s)
- M Isabel Ordiz
- Department of Pediatrics, Washington University at St. Louis, St.
Louis, MO, USA
| | - Stefan Janssen
- Department of Pediatrics, University of California San Diego, La
Jolla, CA, USA
| | - Greg Humphrey
- Department of Pediatrics, University of California San Diego, La
Jolla, CA, USA
| | - Gail Ackermann
- Department of Pediatrics, University of California San Diego, La
Jolla, CA, USA
| | - Kevin Stephenson
- Department of Pediatrics, Washington University at St. Louis, St.
Louis, MO, USA
| | - Sophia Agapova
- Department of Pediatrics, Washington University at St. Louis, St.
Louis, MO, USA
| | - Oscar Divala
- Department of Community Health, College of Medicine, University of
Malawi, Malawi
| | - Yankho Kaimila
- Department of Community Health, College of Medicine, University of
Malawi, Malawi
| | - Ken Maleta
- Department of Community Health, College of Medicine, University of
Malawi, Malawi
| | - Caroline Zhong
- Department of Pediatrics, Washington University at St. Louis, St.
Louis, MO, USA
| | - Rob Knight
- Department of Pediatrics, University of California San Diego, La
Jolla, CA, USA
- Department of Computer Science and Engineering, University of
California San Diego, La Jolla, CA, USA
- Department of Bioengineering, University of California San Diego,
La Jolla, CA, USA
- Center for Microbiome Innovation, University of California San
Diego, La Jolla, CA, USA
| | - Indi Trehan
- Department of Pediatrics, Washington University at St. Louis, St.
Louis, MO, USA
- Department of Paediatrics and Child Health, University of Malawi,
Blantyre, Malawi
| | - Phillip I Tarr
- Department of Pediatrics, Washington University at St. Louis, St.
Louis, MO, USA
| | - Brigida Rusconi
- Department of Pediatrics, Washington University at St. Louis, St.
Louis, MO, USA
| | - Mark J Manary
- Department of Pediatrics, Washington University at St. Louis, St.
Louis, MO, USA
- Department of Community Health, College of Medicine, University of
Malawi, Malawi
- USDA/Agricultural Research Service Children's Nutrition Research
Center, Houston, TX, USA
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13
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Das Purkayastha S, Bhattacharya MK, Prasad HK, Upadhyaya H, Lala SD, Pal K, Das M, Sharma GD, Bhattacharjee MJ. Contrasting diversity of vaginal lactobacilli among the females of Northeast India. BMC Microbiol 2019; 19:198. [PMID: 31455211 PMCID: PMC6712660 DOI: 10.1186/s12866-019-1568-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 08/11/2019] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Lactobacilli are gatekeepers of vaginal ecosystem impeding growth of pathogenic microbes and their diversity varies across populations worldwide. The present study investigated diversity of human vaginal microbiota among females of Northeast India, who are distinct in dietary habits, lifestyle, and genomic composition from rest of India. RESULTS Altogether, 154 bacterial isolates were obtained from vaginal swab samples of 40 pregnant and 29 non-pregnant females. The samples were sequenced for 16 s rRNA gene and analysed for identification using a dual approach of homology search and maximum likelihood based clustering. Molecular identification based on 16S rRNA gene sequence confirmed the isolates belonging to 31 species. Lactobacilli constituted 37.7% of the bacterial isolates with 10 species and other Lactic Acid Bacteria (39.61%) represented another 10 species, some of which are opportunistic pathogens. The remaining of the communities are mostly dominated by species of Staphylococcus (14.28%) and rarely by Propionibacterium avidum (3.90%), Bacillus subtilis, Escherchia coli, Janthinobacterium lividum, and Kocuria kristinae (each 0.64%). Interestingly Lactobacillus mucosae and Enterococcus faecalis, which are globally uncommon vaginal microbes is found dominant among women of Northeast India. This tentatively reflects adaptability of particular Lactobacillus species, in distinct population, to better compete for receptors and nutrients in vaginal epithelium than other species. Further, intrageneric 16S rRNA gene exchange was observed among Enterococcus, Staphylococcus, and two species of Lactobacillus, and deep intraspecies divergence among L. mucosae, which pinpointed possibility of emergence of new strains with evolved functionality. Lactobacilli percentage decreased from young pregnant to aged non-pregnant women with maximum colonization in trimester II. CONCLUSION The study highlighted importance of assessment of vaginal microbiota, Lactobacillus in particular, across different population to gain more insight on female health.
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Affiliation(s)
- Sumi Das Purkayastha
- Karimganj College, Karimganj, Assam, India.,Department of Life Science and Bioinformatics, Assam University, Silchar, Assam, India
| | | | | | | | - Suparna Das Lala
- Department of Gynaecology, Hospital of Red Cross Society, Karimganj, Assam, India
| | - Kunal Pal
- Department of Biotechnology and Medical Engineering, NIT Rourkela, Rourkela, Orissa, India
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14
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Bradshaw WJ, Bruxelle JF, Kovacs-Simon A, Harmer NJ, Janoir C, Péchiné S, Acharya KR, Michell SL. Molecular features of lipoprotein CD0873: A potential vaccine against the human pathogen Clostridioides difficile. J Biol Chem 2019; 294:15850-15861. [PMID: 31420448 PMCID: PMC6816091 DOI: 10.1074/jbc.ra119.010120] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 08/15/2019] [Indexed: 01/10/2023] Open
Abstract
Clostridioides difficile is the primary cause of antibiotic-associated diarrhea and colitis, a healthcare-associated intestinal disease resulting in a significant fatality rate. Colonization of the gut is critical for C. difficile pathogenesis. The bacterial molecules essential for efficient colonization therefore offer great potential as vaccine candidates. Here we present findings demonstrating that the C. difficile immunogenic lipoprotein CD0873 plays a critical role in pathogen success in vivo. We found that in a dixenic colonization model, a CD0873-positive strain of C. difficile significantly outcompeted a CD0873-negative strain. Immunization of mice with recombinant CD0873 prevented long-term gut colonization and was correlated with a strong secretory IgA immune response. We further present high-resolution crystal structures of CD0873, at 1.35–2.50 Å resolutions, offering a first view of the ligand-binding pocket of CD0873 and provide evidence that this lipoprotein adhesin is part of a tyrosine import system, an amino acid key in C. difficile infection. These findings suggest that CD0873 could serve as an effective component in a vaccine against C. difficile.
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Affiliation(s)
- William J Bradshaw
- Department of Biology and Biochemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Jean-François Bruxelle
- EA4043 Unité Bactéries Pathogènes et Santé (UBaPS), University Paris-Sud, Université Paris-Saclay, Châtenay-Malabry Cedex, France
| | - Andrea Kovacs-Simon
- College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QD, United Kingdom
| | - Nicholas J Harmer
- College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QD, United Kingdom.,Living Systems Institute, University of Exeter, Exeter EX4 4QD, United Kingdom
| | - Claire Janoir
- EA4043 Unité Bactéries Pathogènes et Santé (UBaPS), University Paris-Sud, Université Paris-Saclay, Châtenay-Malabry Cedex, France
| | - Severine Péchiné
- EA4043 Unité Bactéries Pathogènes et Santé (UBaPS), University Paris-Sud, Université Paris-Saclay, Châtenay-Malabry Cedex, France
| | - K Ravi Acharya
- Department of Biology and Biochemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Stephen L Michell
- College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QD, United Kingdom
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15
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Etienne-Mesmin L, Chassaing B, Desvaux M, De Paepe K, Gresse R, Sauvaitre T, Forano E, de Wiele TV, Schüller S, Juge N, Blanquet-Diot S. Experimental models to study intestinal microbes–mucus interactions in health and disease. FEMS Microbiol Rev 2019; 43:457-489. [DOI: 10.1093/femsre/fuz013] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 05/31/2019] [Indexed: 02/06/2023] Open
Abstract
ABSTRACT
A close symbiotic relationship exists between the intestinal microbiota and its host. A critical component of gut homeostasis is the presence of a mucus layer covering the gastrointestinal tract. Mucus is a viscoelastic gel at the interface between the luminal content and the host tissue that provides a habitat to the gut microbiota and protects the intestinal epithelium. The review starts by setting up the biological context underpinning the need for experimental models to study gut bacteria-mucus interactions in the digestive environment. We provide an overview of the structure and function of intestinal mucus and mucins, their interactions with intestinal bacteria (including commensal, probiotics and pathogenic microorganisms) and their role in modulating health and disease states. We then describe the characteristics and potentials of experimental models currently available to study the mechanisms underpinning the interaction of mucus with gut microbes, including in vitro, ex vivo and in vivo models. We then discuss the limitations and challenges facing this field of research.
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Affiliation(s)
- Lucie Etienne-Mesmin
- Université Clermont Auvergne, INRA, MEDIS, 28 Place Henri Dunant, 63000 Clermont-Ferrand, France
| | - Benoit Chassaing
- Neuroscience Institute, Georgia State University, 100 Piedmont Ave SE, Atlanta, GA 30303 , USA
- Institute for Biomedical Sciences, Georgia State University, 100 Piedmont Ave, Atlanta, GA 30303 , USA
| | - Mickaël Desvaux
- Université Clermont Auvergne, INRA, MEDIS, 28 Place Henri Dunant, 63000 Clermont-Ferrand, France
| | - Kim De Paepe
- Center for Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Raphaële Gresse
- Université Clermont Auvergne, INRA, MEDIS, 28 Place Henri Dunant, 63000 Clermont-Ferrand, France
| | - Thomas Sauvaitre
- Université Clermont Auvergne, INRA, MEDIS, 28 Place Henri Dunant, 63000 Clermont-Ferrand, France
| | - Evelyne Forano
- Université Clermont Auvergne, INRA, MEDIS, 28 Place Henri Dunant, 63000 Clermont-Ferrand, France
| | - Tom Van de Wiele
- Center for Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Stephanie Schüller
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, United Kingdom
- Quadram Institute Bioscience, Norwich Research Park, Norwich NR7UQ, United Kingdom
| | - Nathalie Juge
- Quadram Institute Bioscience, Norwich Research Park, Norwich NR7UQ, United Kingdom
| | - Stéphanie Blanquet-Diot
- Université Clermont Auvergne, INRA, MEDIS, 28 Place Henri Dunant, 63000 Clermont-Ferrand, France
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16
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Li M, Bai Y, Zhou J, Huang W, Yan J, Tao J, Fan Q, Liu Y, Mei D, Yan Q, Yuan J, Malard P, Wang Z, Gu J, Tanigchi N, Li W. Core Fucosylation of Maternal Milk N-Glycan Evokes B Cell Activation by Selectively Promoting the l-Fucose Metabolism of Gut Bifidobacterium spp. and Lactobacillus spp. mBio 2019; 10:e00128-19. [PMID: 30940702 DOI: 10.1128/mBio.00128-19] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
This study provides novel evidence for the critical role of maternal milk protein glycosylation in shaping early-life gut microbiota and promoting B cell activation of neonates. The special core-fucosylated oligosaccharides might be promising prebiotics for the personalized nutrition of infants. The maternal milk glycobiome is crucial for shaping the gut microbiota of infants. Although high core fucosylation catalyzed by fucosyltransferase 8 (Fut8) is a general feature of human milk glycoproteins, its role in the formation of a healthy microbiota has not been evaluated. In this study, we found that the core-fucosylated N-glycans in milk of Chinese mothers selectively promoted the colonization of specific gut microbial groups, such as Bifidobacterium spp. and Lactobacillus spp. in their breast-fed infants during lactation. Compared with Fut8+/+ (WT) mouse-fed neonates, the offspring fed by Fut8+/− maternal mice had a distinct gut microbial profile, which was featured by a significant reduction of Lactobacillus spp., Bacteroides spp., and Bifidobacterium spp. and increased abundance of members of the Lachnospiraceae NK4A136 group and Akkermansia spp. Moreover, these offspring mice showed a lower proportion of splenic CD19+ CD69+ B lymphocytes and attenuated humoral immune responses upon ovalbumin (OVA) immunization. In vitro studies demonstrated that the chemically synthesized core-fucosylated oligosaccharides possessed the ability to promote the growth of tested Bifidobacterium and Lactobacillus strains in minimal medium. The resulting L-fucose metabolites, lactate and 1,2-propanediol, could promote the activation of B cells via the B cell receptor (BCR)-mediated signaling pathway.
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17
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Repally A, Perumal V, Dasari A, Palanichamy E, Venkatesan A. Isolation, Identification of Lactobacillus mucosae AN1 and its Antilisterial Peptide Purification and Characterization. Probiotics Antimicrob Proteins 2019; 10:775-786. [PMID: 29064056 DOI: 10.1007/s12602-017-9341-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Lactobacillus mucosae strain AN1 isolated from sheep milk and characterized for its probiotic suitability. In vitro evaluation of critical gut endurance properties of this strain were assessed by different screening methods such as bile salt, gastric acid, lysozyme tolerance assays, hemolytic, cholesterol reduction properties, and HT-29 cell line adhesion assay. Antibacterial peptide from this strain was purified using ammonium sulphate precipitation, gel filtration chromatography and reverse-phase HPLC. The molecular mass of peptides was determined by Tricine-SDS-PAGE and confirmed by matrix-assisted laser desorption ionization-time of flight mass spectroscopy (MALDI-TOF-MS). Purified peptide was named as AN1 having a molecular mass of 10.66 kDa. Helical structures of peptide were determined using circular dichroism spectroscopy. Stability of peptide AN1 towards different parameters such as pH, temperature, organic solvents, proteolytic, and glycolytic enzymes was also analyzed.
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Affiliation(s)
- Ayyanna Repally
- Department of Biotechnology, School of Life Sciences, Pondicherry University, Puducherry, 605014, India
| | - Venkatesh Perumal
- Department of Biotechnology, School of Life Sciences, Pondicherry University, Puducherry, 605014, India
| | - Ankaiah Dasari
- Department of Biotechnology, School of Life Sciences, Pondicherry University, Puducherry, 605014, India
| | - Esakkiraj Palanichamy
- Department of Biotechnology, School of Life Sciences, Pondicherry University, Puducherry, 605014, India
| | - Arul Venkatesan
- Department of Biotechnology, School of Life Sciences, Pondicherry University, Puducherry, 605014, India.
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18
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Valeriano VDV, Oh JK, Bagon BB, Kim H, Kang D. Comparative genomic analysis of Lactobacillus mucosae LM1 identifies potential niche-specific genes and pathways for gastrointestinal adaptation. Genomics 2019; 111:24-33. [DOI: 10.1016/j.ygeno.2017.12.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 12/15/2017] [Accepted: 12/15/2017] [Indexed: 01/02/2023]
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19
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Chatterjee M, Pushkaran AC, Vasudevan AK, Menon KKN, Biswas R, Mohan CG. Understanding the adhesion mechanism of a mucin binding domain from Lactobacillus fermentum and its role in enteropathogen exclusion. Int J Biol Macromol 2018; 110:598-607. [DOI: 10.1016/j.ijbiomac.2017.10.107] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 10/13/2017] [Accepted: 10/16/2017] [Indexed: 12/21/2022]
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20
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de Souza BMS, Borgonovi TF, Casarotti SN, Todorov SD, Penna ALB. Lactobacillus casei and Lactobacillus fermentum Strains Isolated from Mozzarella Cheese: Probiotic Potential, Safety, Acidifying Kinetic Parameters and Viability under Gastrointestinal Tract Conditions. Probiotics Antimicrob Proteins 2019; 11:382-96. [DOI: 10.1007/s12602-018-9406-y] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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21
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Todorov SD, Holzapfel W, Nero LA. In Vitro Evaluation of Beneficial Properties of Bacteriocinogenic Lactobacillus plantarum ST8Sh. Probiotics Antimicrob Proteins 2017; 9:194-203. [PMID: 27943050 DOI: 10.1007/s12602-016-9245-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Lactobacillus plantarum ST8Sh, isolated from Bulgarian salami "shpek" and previously characterized as bacteriocin producer, was evaluated for its beneficial properties. Based on the PCR analysis, Lb. plantarum ST8Sh was shown to host a gene related to the production of adhesion proteins such as Mab, Mub, EF, and PrgB. Genetic and physiological tests suggest Lb. plantarum ST8Sh to represent a potential probiotic candidate, including survival in the presence of low levels of pH and high levels of ox bile, production of β-galactosidase, bile salt deconjugation, high level of hydrophobicity, functional auto- and co-aggregation properties, and adhesion to cell lines. Application of semi-purified bacteriocin produced by Lb. plantarum ST8Sh in combination with ciprofloxacin presented synergistic effect on inhibition of Listeria monocytogenes Scott A. Based on observed properties, Lb. plantarum ST8Sh can be considered as a potential probiotic candidate with additional bacteriocinogenic properties.
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22
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Pajarillo EAB, Kim SH, Valeriano VD, Lee JY, Kang DK. Proteomic View of the Crosstalk between Lactobacillus mucosae and Intestinal Epithelial Cells in Co-culture Revealed by Q Exactive-Based Quantitative Proteomics. Front Microbiol 2017; 8:2459. [PMID: 29312173 PMCID: PMC5732961 DOI: 10.3389/fmicb.2017.02459] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 11/27/2017] [Indexed: 01/28/2023] Open
Abstract
Lactobacilli are bacteria that are beneficial to host health, but information on communication between Lactobacilli and host cells in the intestine is lacking. In this study, we examined the proteomes of the Lactobacillus mucosae strain LM1, as a model of beneficial bacteria, and the intestinal porcine epithelial cell line (IPEC-J2) after co-culture. Label-free proteomics demonstrated the high-throughput capability of the technique, and robust characterization of the functional profiles and changes in the bacteria and intestinal cells was achieved in pure and mixed cultures. After co-culture, we identified totals of 376 and 653 differentially expressed proteins in the LM1 and IPEC-J2 proteomes, respectively. The major proteomic changes in the LM1 strain occurred in the functional categories of transcription, general function, and translation, whereas those in IPEC-J2 cells involved metabolic and cellular processes, and cellular component organization/biogenesis. Among them, elongation factor Tu, glyceraldehyde 3-phosphate dehydrogenase, and phosphocarrier protein HPr, which are known to be involved in bacterial adhesion, were upregulated in LM1. In contrast, proteins involved in tight junction assembly, actin organization, and genetic information processing (i.e., histones and signaling pathways) were significantly upregulated in IPEC-J2 cells. Furthermore, we identified functional pathways that are possibly involved in host–microbe crosstalk and response. These findings will provide novel insights into host–bacteria communication and the molecular mechanism of probiotic establishment in the intestine.
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Affiliation(s)
| | - Sang Hoon Kim
- Department of Animal Resources Science, Dankook University, Cheonan, South Korea
| | | | - Ji Yoon Lee
- National Instrumentation Center for Environmental Management, Seoul National University, Seoul, South Korea
| | - Dae-Kyung Kang
- Department of Animal Resources Science, Dankook University, Cheonan, South Korea
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23
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Patel S, Mathivanan N, Goyal A. Bacterial adhesins, the pathogenic weapons to trick host defense arsenal. Biomed Pharmacother 2017; 93:763-771. [DOI: 10.1016/j.biopha.2017.06.102] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 06/23/2017] [Accepted: 06/29/2017] [Indexed: 12/18/2022] Open
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Ling Z, Liu F, Shao L, Cheng Y, Li L. Dysbiosis of the Urinary Microbiota Associated With Urine Levels of Proinflammatory Chemokine Interleukin-8 in Female Type 2 Diabetic Patients. Front Immunol 2017; 8:1032. [PMID: 28943876 PMCID: PMC5603796 DOI: 10.3389/fimmu.2017.01032] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Accepted: 08/10/2017] [Indexed: 12/13/2022] Open
Abstract
Evidence has shown that dysbiosis of the urinary microbiota existed in female type 2 diabetes mellitus (T2DM) patients. Perturbations of intestinal microbiota are linked to proinflammatory chemokine interleukin-8 (IL-8); however, the correlations between urinary microbiota and IL-8 are not well studied. Here, we investigated the associations between the altered urinary microbiota and urinary IL-8 in female T2DM patients. A modified four-tube midstream urine technique was used to collect urine specimens from 70 female T2DM patients and 70 matched healthy controls (HCs). Bacterial genomic DNA from urine specimens was isolated using magnetic beads and the urinary microbiota was assessed using Illumina MiSeq platform targeting on the 16S rRNA gene V3–V4 region. Urinary IL-8 was determined by enzyme linked immunosorbent assay. Subsequently, the T2DM patients were separated into urine IL-8 detectable (WIL8) and undetectable (NIL8) groups, and the composition of urinary microbiota between the two groups was compared. Meanwhile, the levels of IL-8 between the “≥HCs” group (those specific bacterial genera were more than or equal to the HCs) and the “<HCs” group (those specific bacterial genera were less than the HCs) was also compared. Of 70 urine samples from T2DM patients without urinary tract infections, 46 patients had detectable IL-8 in their urine (64.31 ± 70.43 pg/mL), while 24 patients had undetectable IL-8. Compared to the NIL8 group, 11 bacterial genera increased in the WIL8 group, including Corynebacterium, Akkermansia, Enterococcus, etc., whereas 10 genera, such as Faecalibacterium, Bacteroides, and Pseudomonas decreased. One species of Lactobacillus, Lactobacillus iners, increased obviously in the WIL8 group. The “≥HCs” group showed 17 genera increased and 16 genera decreased. In addition, 18 genera contributed to the presence of urinary IL-8 in T2DM patients, which explained 95.60% of the total variance of urinary microbiota. Our study demonstrated that dysbiosis of the urinary microbiota with several key bacteria was associated with urinary IL-8 in female T2DM patients, which might be useful to explore the interactions between urinary microbiota and inflammatory responses and shed light on novel diagnosis and therapy for urinary microbiota associated with infections in T2DM patients.
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Affiliation(s)
- Zongxin Ling
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Fengping Liu
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Nursing School, Jiangsu Vocational College of Medicine, Yancheng, China
| | - Li Shao
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yiwen Cheng
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Lanjuan Li
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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Arena MP, Capozzi V, Spano G, Fiocco D. The potential of lactic acid bacteria to colonize biotic and abiotic surfaces and the investigation of their interactions and mechanisms. Appl Microbiol Biotechnol 2017; 101:2641-2657. [PMID: 28213732 DOI: 10.1007/s00253-017-8182-z] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 02/01/2017] [Accepted: 02/03/2017] [Indexed: 12/23/2022]
Abstract
Lactic acid bacteria (LAB) are a heterogeneous group of Gram-positive bacteria that comprise several species which have evolved in close association with humans (food and lifestyle). While their use to ferment food dates back to very ancient times, in the last decades, LAB have attracted much attention for their documented beneficial properties and for potential biomedical applications. Some LAB are commensal that colonize, stably or transiently, host mucosal surfaces, inlcuding the gut, where they may contribute to host health. In this review, we present and discuss the main factors enabling LAB adaptation to such lifestyle, including the gene reprogramming accompanying gut colonization, the specific bacterial components involved in adhesion and interaction with host, and how the gut niche has shaped the genome of intestine-adapted species. Moreover, the capacity of LAB to colonize abiotic surfaces by forming structured communities, i.e., biofilms, is briefly discussed, taking into account the main bacterial and environmental factors involved, particularly in relation to food-related environments. The vast spread of LAB surface-associated communities and the ability to control their occurrence hold great potentials for human health and food safety biotechnologies.
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Affiliation(s)
- Mattia Pia Arena
- Department of Agriculture, Food and Environment Sciences, University of Foggia, via Napoli 25, 71122, Foggia, Italy
| | - Vittorio Capozzi
- Department of Agriculture, Food and Environment Sciences, University of Foggia, via Napoli 25, 71122, Foggia, Italy
| | - Giuseppe Spano
- Department of Agriculture, Food and Environment Sciences, University of Foggia, via Napoli 25, 71122, Foggia, Italy.
| | - Daniela Fiocco
- Department of Clinical and Experimental Medicine, University of Foggia, Viale Pinto 1, 71122, Foggia, Italy
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Nishiyama K, Sugiyama M, Mukai T. Adhesion Properties of Lactic Acid Bacteria on Intestinal Mucin. Microorganisms 2016; 4:microorganisms4030034. [PMID: 27681930 PMCID: PMC5039594 DOI: 10.3390/microorganisms4030034] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 09/06/2016] [Accepted: 09/09/2016] [Indexed: 12/13/2022] Open
Abstract
Lactic acid bacteria (LAB) are Gram-positive bacteria that are natural inhabitants of the gastrointestinal (GI) tracts of mammals, including humans. Since Mechnikov first proposed that yogurt could prevent intestinal putrefaction and aging, the beneficial effects of LAB have been widely demonstrated. The region between the duodenum and the terminal of the ileum is the primary region colonized by LAB, particularly the Lactobacillus species, and this region is covered by a mucus layer composed mainly of mucin-type glycoproteins. The mucus layer plays a role in protecting the intestinal epithelial cells against damage, but is also considered to be critical for the adhesion of Lactobacillus in the GI tract. Consequently, the adhesion exhibited by lactobacilli on mucin has attracted attention as one of the critical factors contributing to the persistent beneficial effects of Lactobacillus in a constantly changing intestinal environment. Thus, understanding the interactions between Lactobacillus and mucin is crucial for elucidating the survival strategies of LAB in the GI tract. This review highlights the properties of the interactions between Lactobacillus and mucin, while concomitantly considering the structure of the GI tract from a histochemical perspective.
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Affiliation(s)
- Keita Nishiyama
- Department of Microbiology, School of Pharmacy, Kitasato University, Tokyo 108-8641, Japan.
| | - Makoto Sugiyama
- Faculty of Veterinary Medicine, School of Veterinary Medicine, Kitasato University, Aomori 034-8628, Japan.
| | - Takao Mukai
- Department of Animal Science, School of Veterinary Medicine, Kitasato University, Aomori 034-8628, Japan.
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Pan Y, Wang F, Sun DW, Li Q. Intestinal Lactobacillus community structure and its correlation with diet of Southern Chinese elderly subjects. J Microbiol 2016; 54:594-601. [DOI: 10.1007/s12275-016-6131-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 06/29/2016] [Accepted: 07/07/2016] [Indexed: 12/22/2022]
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Kinoshita H, Ohuchi S, Arakawa K, Watanabe M, Kitazawa H, Saito T. Isolation of lactic acid bacteria bound to the porcine intestinal mucosa and an analysis of their moonlighting adhesins. Biosci Microbiota Food Health 2016; 35:185-196. [PMID: 27867805 PMCID: PMC5107636 DOI: 10.12938/bmfh.16-012] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 07/10/2016] [Indexed: 12/20/2022]
Abstract
The adhesion of lactic acid bacteria (LAB) to the intestinal mucosa is one of the criteria in selecting for probiotics. Eighteen LAB were isolated from porcine
intestinal mucin (PIM): ten strains of Lactobacillus, six strains of Weissella, and two strains of
Streptococcus. Using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) for phosphate-buffered saline (PBS) extracts from
the LAB, many bands were detected in half of the samples, while a few and/or no clear bands were detected in the other half. All six of the selected LAB showed
adhesion to PIM. L. johnsonii MYU 214 and MYU 221 showed adhesion at more than 10%. W. viridescens MYU 208, L.
reuteri MYU 213, L. mucosae MYU 225, and L. agilis MYU 227 showed medium levels of adhesion at 5.9–8.3%. In a
comprehensive analysis for the adhesins in the PBS extracts using a receptor overlay analysis, many moonlighting proteins were detected and identified as
candidates for adhesins: GroEL, enolase, and elongation factor Tu in MYU 208; peptidase C1, enolase, formyl-CoA transferase, phosphoglyceromutase,
triosephosphate isomerase, and phosphofructokinase in MYU 221; and DnaK, enolase, and phosphoglycerate kinase in MYU 227. These proteins in the PBS extracts,
which included such things as molecular chaperones and glycolytic enzymes, may play important roles as adhesins.
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Affiliation(s)
- Hideki Kinoshita
- Laboratory of Food Biochemistry, Department of Bioscience, School of Agriculture, Tokai University, Kawayo, Minami Aso-mura, Aso-gun, Kumamoto, Japan
| | - Satoko Ohuchi
- Department of Food Management, School of Food, Agricultural and Environmental Sciences, Miyagi University, 2-2-1 Hatatate, Taihaku-ku, Sendai, Miyagi, Japan
| | - Kensuke Arakawa
- Graduate School of Environmental and Life Science, Okayama University, 1-1-1 Tsushima-naka, Okayama, Japan
| | - Masamichi Watanabe
- Research Faculty of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-8589, Japan
| | - Haruki Kitazawa
- Laboratory of Animal Products Chemistry, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai, Miyagi, Japan
| | - Tadao Saito
- Laboratory of Animal Products Chemistry, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai, Miyagi, Japan
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Muñoz-Provencio D, Pérez-Martínez G, Monedero V. Identification of Surface Proteins from Lactobacillus casei BL23 Able to Bind Fibronectin and Collagen. Probiotics Antimicrob Proteins 2011; 3:15-20. [PMID: 26781495 DOI: 10.1007/s12602-011-9065-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Strains of lactobacilli show the capacity to attach to extracellular matrix proteins. Cell-wall fractions of Lactobacillus casei BL23 enriched in fibronectin, and collagen-binding proteins were isolated. Mass spectrometry analysis of their protein content revealed the presence of stress-related proteins (GroEL, ClpL), translational elongation factors (EF-Tu, EF-G), oligopeptide solute-binding proteins, and the glycolytic enzymes enolase and glyceraldehyde-3-phosphate dehydrogenase (GAPDH). The latter two enzymes were expressed in Escherichia coli and purified as glutathione-S-transferase (GST) fusion proteins, and their in vitro binding activity to fibronectin and collagen was confirmed. These results reinforce the idea that lactobacilli display on their surfaces a variety of moonlighting proteins that can be important in their adaptation to survive at intestinal mucosal sites and in the interaction with host cells.
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Pajarillo EAB, Kim SH, Lee JY, Valeriano VDV, Kang DK. Quantitative Proteogenomics and the Reconstruction of the Metabolic Pathway in Lactobacillus mucosae LM1. Korean J Food Sci Anim Resour 2015; 35:692-702. [PMID: 26761899 PMCID: PMC4670900 DOI: 10.5851/kosfa.2015.35.5.692] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 10/07/2015] [Accepted: 10/07/2015] [Indexed: 12/22/2022] Open
Abstract
Lactobacillus mucosae is a natural resident of the gastrointestinal tract of humans and animals and a potential probiotic bacterium. To understand the global protein expression profile and metabolic features of L. mucosae LM1 in the early stationary phase, the QExactiveTM Hybrid Quadrupole-Orbitrap Mass Spectrometer was used. Characterization of the intracellular proteome identified 842 proteins, accounting for approximately 35% of the 2,404 protein-coding sequences in the complete genome of L. mucosae LM1. Proteome quantification using QExactiveTM Orbitrap MS detected 19 highly abundant proteins (> 1.0% of the intracellular proteome), including CysK (cysteine synthase, 5.41%) and EF-Tu (elongation factor Tu, 4.91%), which are involved in cell survival against environmental stresses. Metabolic pathway annotation of LM1 proteome using the Kyoto Encyclopedia of Genes and Genomes (KEGG) database showed that half of the proteins expressed are important for basic metabolic and biosynthetic processes, and the other half might be structurally important or involved in basic cellular processes. In addition, glycogen biosynthesis was activated in the early stationary phase, which is important for energy storage and maintenance. The proteogenomic data presented in this study provide a suitable reference to understand the protein expression pattern of lactobacilli in standard conditions.
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Affiliation(s)
| | - Sang Hoon Kim
- Department of Animal Resources Science, Dankook University, Cheonan 31116, Korea
| | - Ji-Yoon Lee
- National Instrumentation Center for Environmental Management, Seoul National University, Seoul 08826, Korea
| | | | - Dae-Kyung Kang
- Department of Animal Resources Science, Dankook University, Cheonan 31116, Korea
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Murtini D, Aryantini NPD, Sujaya IN, Urashima T, Fukuda K. Effects of prebiotic oligosaccharides consumption on the growth and expression profile of cell surface-associated proteins of a potential probiotic Lactobacillus rhamnosus FSMM15. Biosci Microbiota Food Health 2015; 35:41-9. [PMID: 26858929 PMCID: PMC4735032 DOI: 10.12938/bmfh.2015-014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 09/12/2015] [Indexed: 11/28/2022]
Abstract
To investigate carbohydrate preference of a potential probiotic, Lactobacillus rhamnosus
FSMM15, six prebiotics, including two milk-derived prebiotics, galactooligosaccharides and
lacto-N-biose I, and four plant-origin prebiotics, beet oligosaccharide syrup, difructose
anhydride III, fructooligosaccharides, and raffinose, were examined. The strain utilized the milk-derived
prebiotics at similar levels to glucose but did not utilize the plant-origin ones in the same manner,
reflecting their genetic background, which allows them to adapt to dairy ecological niches. These prebiotics
had little influence on the expression pattern of cell surface-associated proteins in the strain; however, an
ATP-binding cassette transporter substrate-binding protein and a glyceraldehyde-3-phosphate dehydrogenase were
suggested to be upregulated in response to carbon starvation stress.
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Affiliation(s)
- Devi Murtini
- Department of Animal and Food Hygiene, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan
| | - Ni Putu Desy Aryantini
- Department of Animal and Food Hygiene, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan
| | - I Nengah Sujaya
- Integrated Laboratory for Bioscience and Biotechnology, Udayana University, Bukit Jimbaran Campus, Badung, Bali, Indonesia
| | - Tadasu Urashima
- Department of Animal and Food Hygiene, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan
| | - Kenji Fukuda
- Department of Animal and Food Hygiene, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan
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Chiang ML, Chen HC, Chen KN, Lin YC, Lin YT, Chen MJ. Optimizing Production of Two Potential Probiotic Lactobacilli Strains Isolated from Piglet Feces as Feed Additives for Weaned Piglets. Asian-Australas J Anim Sci 2015; 28:1163-70. [PMID: 26104525 PMCID: PMC4478485 DOI: 10.5713/ajas.14.0780] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 12/10/2014] [Accepted: 01/26/2015] [Indexed: 11/27/2022]
Abstract
Two probiotic strains, Lactobacillus johnsonii x-1d-2 and Lactobacillus mucosae x-4w-1, originally isolated from piglet feces, have been demonstrated to possess antimicrobial activities, antibiotic resistances and interleukin-6 induction ability in RAW 267.4 macrophages in our previous study. These characteristics make L. johnsonii x-1d-2 and L. mucosae x-4w-1 good candidates for application in feed probiotics. In this study, soybeal meal, molasses and sodium acetate were selected to optimize the growth medium for cultivation of L. johnsonii x-1d-2 and L. mucosae x-4w-1. These two strains were then freeze-dried and mixed into the basal diet to feed the weaned piglets. The effects of L. johnsonii x-1d-2 and L. mucosae x-4w-1 on the growth performance and fecal microflora of weaned piglets were investigated. The results showed that the bacterial numbers of L. johnsonii x-1d-2 and L. mucosae x-4w-1 reached a maximum of 8.90 and 9.30 log CFU/mL, respectively, when growing in optimal medium consisting of 5.5% (wt/vol) soybean meal, 1.0% (wt/vol) molasses and 1.0% (wt/vol) sodium acetate. The medium cost was 96% lower than the commercial de Man, Rogosa and Sharpe medium. In a further feeding study, the weaned piglets fed basal diet supplemented with freeze-dried probiotic cultures exhibited higher (p<0.05) body weight gain, feed intake, and gain/feed ratio than weaned piglets fed basal diet. Probiotic feeding also increased the numbers of lactobacilli and decreased the numbers of E. coli in the feces of weaned piglets. This study demonstrates that L. johnsonii x-1d-2 and L. mucosae x-4w-1 have high potential to be used as feed additives in the pig industry.
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Affiliation(s)
- Ming-Lun Chiang
- Department of Tourism and Hospitality, Kainan University, Taoyuan 33857, Taiwan
| | - Hsi-Chia Chen
- Council of Agriculture, Executive Yuan, Taipei 10014, Taiwan
| | - Kun-Nan Chen
- Department of Mechanical Engineering, Tungnan University, Taipei 22202, Taiwan
| | - Yu-Chun Lin
- Livestock Research Institute, Council of Agriculture, Executive Yuan, Tainan 71246, Taiwan
| | - Ya-Ting Lin
- Department of Tourism and Hospitality, Kainan University, Taoyuan 33857, Taiwan
| | - Ming-Ju Chen
- Department of Tourism and Hospitality, Kainan University, Taoyuan 33857, Taiwan
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Valeriano VD, Parungao-Balolong MM, Kang DK. In vitro evaluation of the mucin-adhesion ability and probiotic potential of Lactobacillus mucosae LM1. J Appl Microbiol 2014; 117:485-97. [PMID: 24807045 DOI: 10.1111/jam.12539] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 03/23/2014] [Accepted: 03/28/2014] [Indexed: 11/28/2022]
Abstract
AIMS In this report, we characterized the probiotic potential of Lactobacillus mucosae LM1, focusing on its in vitro mucin-adhesion abilities. METHODS AND RESULTS Screening assays were used to evaluate LM1. Previous studies on Lact. mucosae species have been performed, but few have examined the ability of this species to adhere to and colonize the intestinal mucosa. Thus, adhesion, aggregation and pathogen inhibition assays of LM1 along with microbial adhesion to solvents (MATS) assay were carried out in comparison with another putative probiotic, Lactobacillus johnsonii PF01, and the commercial strain, Lactobacillus rhamnosus GG. Based on MATS assay, the cell surfaces of the lactobacilli strains were found to be hydrophobic and highly electron-donating, but the average hydropathy (GRAVY) index of predicted surface-exposed proteins in the LM1 genome indicated that most were hydrophilic. LM1 showed the highest adhesion, aggregation and hydrophobicity among the strains tested and significantly inhibited the adhesion of Escherichia coli K88 and Salmonella enterica serovar Typhimurium KCCM 40253. Correlations among adhesion, aggregation and hydrophobicity, as well as between coaggregation and displacement of E. coli, were observed. CONCLUSIONS Increased adhesion may not always correlate with increased pathogen inhibition due to various strain-specific mechanisms. Nevertheless, LM1 has promising probiotic properties that can be explored further using a genomics approach. SIGNIFICANCE AND IMPACT OF THE STUDY Our data on adhesion of LM1 strain showed a significant correlation between adhesion, hydrophobicity of cell surface and autoaggregation. This study gives basic knowledge for the elucidation of the adhesion mechanism of Lactobacillus sp. and prediction of its adherence in specific host models.
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Affiliation(s)
- V D Valeriano
- Department of Animal Resources Science, Dankook University, Cheonan, Korea
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Forni D, Cleynen I, Ferrante M, Cassinotti A, Cagliani R, Ardizzone S, Vermeire S, Fichera M, Lombardini M, Maconi G, de Franchis R, Asselta R, Biasin M, Clerici M, Sironi M. ABO histo-blood group might modulate predisposition to Crohn's disease and affect disease behavior. J Crohns Colitis 2014; 8:489-94. [PMID: 24268527 DOI: 10.1016/j.crohns.2013.10.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Revised: 10/31/2013] [Accepted: 10/31/2013] [Indexed: 01/18/2023]
Abstract
BACKGROUND AND AIMS ABO encodes a glycosyltranferase which determines the major human histo-blood group. The FUT2 fucosyltransferase allows expression of ABO antigens on the gastrointestinal mucosa and in bodily secretions (secretor phenotype). A nonsense allele in FUT2 represents a susceptibility variant for Crohn's disease, and both the secretor and ABO blood group status affect the composition of the gut microbiota. Thus, we evaluated if variants in ABO might represent good candidates as Crohn's disease susceptibility loci. METHODS We recruited two case-control cohorts, from Italy (n=1301) and Belgium (n=2331). Subjects were genotyped for one SNP in FUT2 and two variants in ABO. RESULTS No effect on Crohn's disease risk was detected for ABO variants, whereas an association was observed between the FUT2 polymorphism and Crohn's disease susceptibility in the Belgian sample, but not in the Italian cohort. The effect of histo-blood groups was evaluated using group O as the reference. Most non-O groups had odds ratios (ORs) higher than 1 in both cohorts, and combined analysis of the two samples indicated a predisposing effect for the A and B groups (OR=1.17, 95% CI: 1.02-1.32 and OR=1.33, 95% CI: 1.09-1.58, respectively). In Crohn's disease patients, the non-O blood group and the non-secretor status were associated with higher risk of developing a stricturing or penetrating disease. CONCLUSIONS ABO histo-blood group might confer susceptibility to Crohn's disease and modulate disease severity.
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Affiliation(s)
- Diego Forni
- Bioinformatics, Scientific Institute IRCCS E. Medea, 23842 Bosisio Parini, LC, Italy
| | - Isabelle Cleynen
- Department of Gastroenterology, University Hospital Gasthuisberg, Leuven, Belgium
| | - Marc Ferrante
- Department of Gastroenterology, University Hospital Gasthuisberg, Leuven, Belgium
| | - Andrea Cassinotti
- IBD Unit, Chair of Gastroenterology, Luigi Sacco University Hospital, 20157 Milan, Italy
| | - Rachele Cagliani
- Bioinformatics, Scientific Institute IRCCS E. Medea, 23842 Bosisio Parini, LC, Italy
| | - Sandro Ardizzone
- IBD Unit, Chair of Gastroenterology, Luigi Sacco University Hospital, 20157 Milan, Italy
| | - Severine Vermeire
- Department of Gastroenterology, University Hospital Gasthuisberg, Leuven, Belgium
| | - Maria Fichera
- IBD Unit, Chair of Gastroenterology, Luigi Sacco University Hospital, 20157 Milan, Italy
| | - Marta Lombardini
- IBD Unit, Chair of Gastroenterology, Luigi Sacco University Hospital, 20157 Milan, Italy
| | - Giovanni Maconi
- IBD Unit, Chair of Gastroenterology, Luigi Sacco University Hospital, 20157 Milan, Italy
| | - Roberto de Franchis
- IBD Unit, Chair of Gastroenterology, Luigi Sacco University Hospital, 20157 Milan, Italy
| | - Rosanna Asselta
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, Milano, Italy
| | - Mara Biasin
- Chair of Immunology, DISC LITA Vialba, University of Milano, Milano, Italy
| | - Mario Clerici
- Chair of Immunology, Department of Physiopathology and Transplantation, University of Milan, 20090 Milano, Italy; Fondazione Don C. Gnocchi, IRCCS, 20148 Milano, Italy
| | - Manuela Sironi
- Bioinformatics, Scientific Institute IRCCS E. Medea, 23842 Bosisio Parini, LC, Italy.
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Wang LQ, Zhao F, Liu F, Meng XC. Live/dead state is not the factor influencing adhesion ability of Bifidobacterium animalis KLDS2.0603. J Microbiol 2013; 51:584-9. [DOI: 10.1007/s12275-013-2632-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Accepted: 04/22/2013] [Indexed: 11/28/2022]
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Kainulainen V, Reunanen J, Hiippala K, Guglielmetti S, Vesterlund S, Palva A, Satokari R. BopA does not have a major role in the adhesion of Bifidobacterium bifidum to intestinal epithelial cells, extracellular matrix proteins, and mucus. Appl Environ Microbiol 2013; 79:6989-97. [PMID: 24014530 DOI: 10.1128/AEM.01993-13] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The ability of bifidobacteria to adhere to the intestine of the human host is considered to be important for efficient colonization and achieving probiotic effects. Bifidobacterium bifidum strains DSM20456 and MIMBb75 adhere well to the human intestinal cell lines Caco-2 and HT-29. The surface lipoprotein BopA was previously described to be involved in mediating adherence of B. bifidum to epithelial cells, but thioacylated, purified BopA inhibited the adhesion of B. bifidum to epithelial cells in competitive adhesion assays only at very high concentrations, indicating an unspecific effect. In this study, the role of BopA in the adhesion of B. bifidum was readdressed. The gene encoding BopA was cloned and expressed without its lipobox and hydrophobic signal peptide in Escherichia coli, and an antiserum against the recombinant BopA was produced. The antiserum was used to demonstrate the abundant localization of BopA on the cell surface of B. bifidum. However, blocking of B. bifidum BopA with specific antiserum did not reduce adhesion of bacteria to epithelial cell lines, arguing that BopA is not an adhesin. Also, adhesion of B. bifidum to human colonic mucin and fibronectin was found to be BopA independent. The recombinant BopA bound only moderately to human epithelial cells and colonic mucus, and it failed to bind to fibronectin. Thus, our results contrast the earlier findings on the major role of BopA in adhesion, indicating that the strong adhesion of B. bifidum to epithelial cell lines is BopA independent.
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Huang IN, Okawara T, Watanabe M, Kawai Y, Kitazawa H, Ohnuma S, Shibata C, Horii A, Kimura K, Taketomo N, Xiao JZ, Iwatsuki K, Saito T. New screening methods for probiotics with adhesion properties to sialic acid and sulphate residues in human colonic mucin using the Biacore assay. J Appl Microbiol 2013; 114:854-60. [DOI: 10.1111/jam.12063] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 09/26/2012] [Accepted: 11/04/2012] [Indexed: 01/30/2023]
Affiliation(s)
- I-N. Huang
- Laboratory of Animal Products Chemistry, Graduate School of Agricultural Science, Tohoku University; Sendai Japan
| | - T. Okawara
- Laboratory of Animal Products Chemistry, Graduate School of Agricultural Science, Tohoku University; Sendai Japan
| | - M. Watanabe
- Laboratory of Animal Products Chemistry, Graduate School of Agricultural Science, Tohoku University; Sendai Japan
| | - Y. Kawai
- Laboratory of Animal Products Chemistry, Graduate School of Agricultural Science, Tohoku University; Sendai Japan
| | - H. Kitazawa
- Laboratory of Animal Products Chemistry, Graduate School of Agricultural Science, Tohoku University; Sendai Japan
| | - S. Ohnuma
- Department of Surgery; Tohoku University Graduate School of Medicine; Sendai Japan
| | - C. Shibata
- Department of Surgery; Tohoku University Graduate School of Medicine; Sendai Japan
| | - A. Horii
- Department of Molecular Pathology; Tohoku University Graduate School of Medicine; Sendai Japan
| | - K. Kimura
- Division of Research and Development; Meiji Co., Ltd; Odawara Japan
| | - N. Taketomo
- Division of Research and Development; Meiji Co., Ltd; Odawara Japan
| | - J.-Z. Xiao
- Food Science and Technology Institute, Morinaga Milk Industry Co., Ltd; Zama Japan
| | - K. Iwatsuki
- Food Science and Technology Institute, Morinaga Milk Industry Co., Ltd; Zama Japan
| | - T. Saito
- Laboratory of Animal Products Chemistry, Graduate School of Agricultural Science, Tohoku University; Sendai Japan
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Lee JH, Valeriano VD, Shin YR, Chae JP, Kim GB, Ham JS, Chun J, Kang DK. Genome sequence of Lactobacillus mucosae LM1, isolated from piglet feces. J Bacteriol 2012; 194:4766. [PMID: 22887668 DOI: 10.1128/JB.01011-12] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Lactobacillus mucosae LM1, isolated from stool samples of a healthy piglet, displays good in vitro mucin adhesion and antimicrobial activity against pathogenic bacteria. To elucidate its antimicrobial effects and to find its epithelial cell and mucin adhesion genes, the genomic sequence of L. mucosae LM1 was investigated.
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KINOSHITA H, IMOTO S, SUDA Y, ISHIDA M, WATANABE M, KAWAI Y, KITAZAWA H, MIURA K, HORII A, SAITO T. Proposal of screening method for intestinal mucus adhesive lactobacilli using the enzymatic activity of glyceraldehyde-3-phosphate dehydrogenase (GAPDH). Anim Sci J 2012; 84:150-8. [DOI: 10.1111/j.1740-0929.2012.01054.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Turpin W, Humblot C, Noordine ML, Thomas M, Guyot JP. Lactobacillaceae and cell adhesion: genomic and functional screening. PLoS One 2012; 7:e38034. [PMID: 22675431 PMCID: PMC3364998 DOI: 10.1371/journal.pone.0038034] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Accepted: 04/29/2012] [Indexed: 01/01/2023] Open
Abstract
The analysis of collections of lactic acid bacteria (LAB) from traditional fermented plant foods in tropical countries may enable the detection of LAB with interesting properties. Binding capacity is often the main criterion used to investigate the probiotic characteristics of bacteria. In this study, we focused on a collection of 163 Lactobacillaceace comprising 156 bacteria isolated from traditional amylaceous fermented foods and seven strains taken from a collection and used as controls. The collection had a series of analyses to assess binding potential for the selection of new probiotic candidates. The presence/absence of 14 genes involved in binding to the gastrointestinal tract was assessed. This enabled the detection of all the housekeeping genes (ef-Tu, eno, gap, groEl and srtA) in the entire collection, of some of the other genes (apf, cnb, fpbA, mapA, mub) in 86% to 100% of LAB, and of the other genes (cbsA, gtf, msa, slpA) in 0% to 8% of LAB. Most of the bacteria isolated from traditional fermented foods exhibited a genetic profile favorable for their binding to the gastrointestinal tract. We selected 30 strains with different genetic profiles to test their binding ability to non-mucus (HT29) and mucus secreting (HT29-MTX) cell lines as well as their ability to degrade mucus. Assays on both lines revealed high variability in binding properties among the LAB, depending on the cell model used. Finally, we investigated if their binding ability was linked to tighter cross-talk between bacteria and eukaryotic cells by measuring the expression of bacterial genes and of the eukaryotic MUC2 gene. Results showed that wild LAB from tropical amylaceous fermented food had a much higher binding capacity than the two LAB currently known to be probiotics. However their adhesion was not linked to any particular genetic equipment.
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Affiliation(s)
- Williams Turpin
- IRD, UMR Nutripass, IRD/Montpellier2/Montpellier1, Montpellier, France
| | - Christèle Humblot
- IRD, UMR Nutripass, IRD/Montpellier2/Montpellier1, Montpellier, France
- * E-mail:
| | - Marie-Louise Noordine
- INRA, UMR1319, Micalis, “Commensal and Probiotics-Host Interactions” Team, Jouy-en-Josas, France
| | - Muriel Thomas
- INRA, UMR1319, Micalis, “Commensal and Probiotics-Host Interactions” Team, Jouy-en-Josas, France
| | - Jean-Pierre Guyot
- IRD, UMR Nutripass, IRD/Montpellier2/Montpellier1, Montpellier, France
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Rausch P, Rehman A, Künzel S, Häsler R, Ott SJ, Schreiber S, Rosenstiel P, Franke A, Baines JF. Colonic mucosa-associated microbiota is influenced by an interaction of Crohn disease and FUT2 (Secretor) genotype. Proc Natl Acad Sci U S A 2011; 108:19030-5. [PMID: 22068912 PMCID: PMC3223430 DOI: 10.1073/pnas.1106408108] [Citation(s) in RCA: 255] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The FUT2 (Secretor) gene is responsible for the presence of ABO histo-blood group antigens on the gastrointestinal mucosa and in bodily secretions. Individuals lacking a functional copy of FUT2 are known as "nonsecretors" and display an array of differences in susceptibility to infection and disease, including Crohn disease. To determine whether variation in resident microbial communities with respect to FUT2 genotype is a potential factor contributing to susceptibility, we performed 454-based community profiling of the intestinal microbiota in a panel of healthy subjects and Crohn disease patients and determined their genotype for the primary nonsecretor allele in Caucasian populations, W143X (G428A). Consistent with previous studies, we observe significant deviations in the microbial communities of individuals with Crohn disease. Furthermore, the FUT2 genotype explains substantial differences in community composition, diversity, and structure, and we identified several bacterial species displaying disease-by-genotype associations. These findings indicate that alterations in resident microbial communities may in part explain the variety of host susceptibilities surrounding nonsecretor status and that FUT2 is an important genetic factor influencing host-microbial diversity.
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Affiliation(s)
- Philipp Rausch
- Institute for Experimental Medicine, Christian-Albrechts-University of Kiel, D-24105 Kiel, Germany
- Max Planck Institute for Evolutionary Biology, D-24306 Plön, Germany
| | - Ateequr Rehman
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, D-24105 Kiel, Germany; and
| | - Sven Künzel
- Max Planck Institute for Evolutionary Biology, D-24306 Plön, Germany
| | - Robert Häsler
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, D-24105 Kiel, Germany; and
| | - Stephan J. Ott
- Department of General Internal Medicine, Christian-Albrechts-University of Kiel, University Hospital Schleswig-Holstein, Campus Kiel, D-24105 Kiel, Germany
| | - Stefan Schreiber
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, D-24105 Kiel, Germany; and
- Department of General Internal Medicine, Christian-Albrechts-University of Kiel, University Hospital Schleswig-Holstein, Campus Kiel, D-24105 Kiel, Germany
| | - Philip Rosenstiel
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, D-24105 Kiel, Germany; and
| | - Andre Franke
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, D-24105 Kiel, Germany; and
| | - John F. Baines
- Institute for Experimental Medicine, Christian-Albrechts-University of Kiel, D-24105 Kiel, Germany
- Max Planck Institute for Evolutionary Biology, D-24306 Plön, Germany
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Abstract
The gastrointestinal tract (GIT) is lined by a layer of mucus formed by mucin glycoproteins. This layer constitutes a physical and chemical barrier between the intestinal contents and the underlying epithelia. In addition to this protective role, mucins harbor glycan-rich domains that provide preferential binding sites for pathogens and commensal bacteria. Although mucus-microbial interactions in the GIT play a crucial role in determining the outcome of relationships of both commensal and pathogens with the host, the adhesins and ligands involved in the interaction are poorly delineated. This review focuses on the current knowledge of microbial adhesins to gastrointestinal mucus and mucus components.
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Affiliation(s)
- Nathalie Juge
- Institute of Food Research, Norwich Research Park, Norwich NR4 7UA, UK.
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