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Kleinjans M, Schneider CV, Bruns T, Strnad P. Phenome of coeliac disease vs. inflammatory bowel disease. Sci Rep 2022; 12:14572. [PMID: 36028550 PMCID: PMC9418215 DOI: 10.1038/s41598-022-18593-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 08/16/2022] [Indexed: 11/09/2022] Open
Abstract
Coeliac disease (CeD) is characterized by gliadin-induced intestinal inflammation appearing in genetically susceptible individuals, such as HLA-DQ2.5 carriers. CeD, as well as other chronic intestinal disorders, such as Crohn's disease (CD) and ulcerative colitis, has been associated with increased morbidity and mortality, but the causes are unknown. We systematically analysed CeD-associated diagnoses and compared them to conditions enriched in subjects with CD/UC as well as in HLA-DQ2.5 carriers without CeD. We compared the overall and cause-specific mortality and morbidity of 3,001 patients with CeD, 2,020 with CD, 4,399 with UC and 492,200 controls in the community-based UK Biobank. Disease-specific phenotypes were assessed with the multivariable Phenome Wide Association Study (PheWAS) method. Associations were adjusted for age, sex and body mass index. All disease groups displayed higher overall mortality than controls (CD: aHR = 1.91[1.70-2.17]; UC: aHR = 1.32 [1.20-1.46]; CeD: aHR = 1.38 [1.22-1.55]). Cardiovascular and cancer-related deaths were responsible for the majority of fatalities. PheWAS analysis revealed 166 Phecodes overrepresented in all three disorders, whereas only ~ 20% of enriched Phecodes were disease specific. Seven of the 58 identified CeD-specific Phecodes were enriched in individuals homozygous for HLA-DQ2.5 without diagnosed CeD. Four out of these seven Phecodes and eight out of 19 HLA-DQ2.5 specific Phecodes were more common in homozygous HLA-DQ2.5 subjects with vs. without CeD, highlighting the interplay between genetics and diagnosis-related factors. Our study illustrates that the morbidity and mortality in CeD share similarities with CD/UC, while the CeD-restricted conditions might be driven by both inherited and acquired factors.
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Affiliation(s)
- Moritz Kleinjans
- Medical Clinic III, Gastroenterology, Metabolic Diseases and Intensive Care, University Hospital RWTH Aachen, Pauwelsstr. 30, 52074, Aachen, Germany
| | - Carolin V Schneider
- Medical Clinic III, Gastroenterology, Metabolic Diseases and Intensive Care, University Hospital RWTH Aachen, Pauwelsstr. 30, 52074, Aachen, Germany
- The Institute for Translational Medicine and Therapeutics, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Tony Bruns
- Medical Clinic III, Gastroenterology, Metabolic Diseases and Intensive Care, University Hospital RWTH Aachen, Pauwelsstr. 30, 52074, Aachen, Germany
| | - Pavel Strnad
- Medical Clinic III, Gastroenterology, Metabolic Diseases and Intensive Care, University Hospital RWTH Aachen, Pauwelsstr. 30, 52074, Aachen, Germany.
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Henschel AM, Cabrera SM, Kaldunski ML, Jia S, Geoffrey R, Roethle MF, Lam V, Chen YG, Wang X, Salzman NH, Hessner MJ. Modulation of the diet and gastrointestinal microbiota normalizes systemic inflammation and β-cell chemokine expression associated with autoimmune diabetes susceptibility. PLoS One 2018; 13:e0190351. [PMID: 29293587 PMCID: PMC5749787 DOI: 10.1371/journal.pone.0190351] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 12/13/2017] [Indexed: 12/11/2022] Open
Abstract
Environmental changes associated with modern lifestyles may underlie the rising incidence of Type 1 diabetes (T1D). Our previous studies of T1D families and the BioBreeding (BB) rat model have identified a peripheral inflammatory state that is associated with diabetes susceptibility, consistent with pattern recognition receptor ligation, but is independent of disease progression. Here, compared to control strains, islets of spontaneously diabetic BB DRlyp/lyp and diabetes inducible BB DR+/+ weanlings provided a standard cereal diet expressed a robust proinflammatory transcriptional program consistent with microbial antigen exposure that included numerous cytokines/chemokines. The dependence of this phenotype on diet and gastrointestinal microbiota was investigated by transitioning DR+/+ weanlings to a gluten-free hydrolyzed casein diet (HCD) or treating them with antibiotics to alter/reduce pattern recognition receptor ligand exposure. Bacterial 16S rRNA gene sequencing revealed that these treatments altered the ileal and cecal microbiota, increasing the Firmicutes:Bacteriodetes ratio and the relative abundances of lactobacilli and butyrate producing taxa. While these conditions did not normalize the inherent hyper-responsiveness of DR+/+ rat leukocytes to ex vivo TLR stimulation, they normalized plasma cytokine levels, plasma TLR4 activity levels, the proinflammatory islet transcriptome, and β-cell chemokine expression. In lymphopenic DRlyp/lyp rats, HCD reduced T1D incidence, and the introduction of gluten to this diet induced islet chemokine expression and abrogated protection from diabetes. Overall, these studies link BB rat islet-level immunocyte recruiting potential, as measured by β-cell chemokine expression, to a genetically controlled immune hyper-responsiveness and innate inflammatory state that can be modulated by diet and the intestinal microbiota.
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Affiliation(s)
- Angela M. Henschel
- The Max McGee National Research Center for Juvenile Diabetes at the Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- The Department of Pediatrics at the Medical College of Wisconsin, and The Children’s Research Institute of Children’s Hospital of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Susanne M. Cabrera
- The Max McGee National Research Center for Juvenile Diabetes at the Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- The Department of Pediatrics at the Medical College of Wisconsin, and The Children’s Research Institute of Children’s Hospital of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Mary L. Kaldunski
- The Max McGee National Research Center for Juvenile Diabetes at the Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- The Department of Pediatrics at the Medical College of Wisconsin, and The Children’s Research Institute of Children’s Hospital of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Shuang Jia
- The Max McGee National Research Center for Juvenile Diabetes at the Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- The Department of Pediatrics at the Medical College of Wisconsin, and The Children’s Research Institute of Children’s Hospital of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Rhonda Geoffrey
- The Max McGee National Research Center for Juvenile Diabetes at the Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- The Department of Pediatrics at the Medical College of Wisconsin, and The Children’s Research Institute of Children’s Hospital of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Mark F. Roethle
- The Max McGee National Research Center for Juvenile Diabetes at the Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- The Department of Pediatrics at the Medical College of Wisconsin, and The Children’s Research Institute of Children’s Hospital of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Vy Lam
- The Department of Pediatrics at the Medical College of Wisconsin, and The Children’s Research Institute of Children’s Hospital of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Yi-Guang Chen
- The Max McGee National Research Center for Juvenile Diabetes at the Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- The Department of Pediatrics at the Medical College of Wisconsin, and The Children’s Research Institute of Children’s Hospital of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Xujing Wang
- National Institute of Diabetes and Digestive and Kidney Diseases, the National Institutes of Health, Bethesda, Maryland, United States of America
| | - Nita H. Salzman
- The Department of Pediatrics at the Medical College of Wisconsin, and The Children’s Research Institute of Children’s Hospital of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Martin J. Hessner
- The Max McGee National Research Center for Juvenile Diabetes at the Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- The Department of Pediatrics at the Medical College of Wisconsin, and The Children’s Research Institute of Children’s Hospital of Wisconsin, Milwaukee, Wisconsin, United States of America
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Heinonen MT, Laine AP, Söderhäll C, Gruzieva O, Rautio S, Melén E, Pershagen G, Lähdesmäki HJ, Knip M, Ilonen J, Henttinen TA, Kere J, Lahesmaa R. GIMAP GTPase family genes: potential modifiers in autoimmune diabetes, asthma, and allergy. THE JOURNAL OF IMMUNOLOGY 2015; 194:5885-94. [PMID: 25964488 DOI: 10.4049/jimmunol.1500016] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Accepted: 03/30/2015] [Indexed: 12/31/2022]
Abstract
GTPase of the immunity-associated protein (GIMAP) family members are differentially regulated during human Th cell differentiation and have been previously connected to immune-mediated disorders in animal studies. GIMAP4 is believed to contribute to the Th cell subtype-driven immunological balance via its role in T cell survival. GIMAP5 has a key role in BB-DR rat and NOD mouse lymphopenia. To elucidate GIMAP4 and GIMAP5 function and role in human immunity, we conducted a study combining genetic association in different immunological diseases and complementing functional analyses. Single nucleotide polymorphisms tagging the GIMAP haplotype variation were genotyped in Finnish type 1 diabetes (T1D) families and in a prospective Swedish asthma and allergic sensitization birth cohort. Initially, GIMAP5 rs6965571 was associated with risk for asthma and allergic sensitization (odds ratio [OR] 3.74, p = 0.00072, and OR 2.70, p = 0.0063, respectively) and protection from T1D (OR 0.64, p = 0.0058); GIMAP4 rs13222905 was associated with asthma (OR 1.28, p = 0.035) and allergic sensitization (OR 1.27, p = 0.0068). However, after false discovery rate correction for multiple testing, only the associations of GIMAP4 with allergic sensitization and GIMAP5 with asthma remained significant. In addition, transcription factor binding sites surrounding the associated loci were predicted. A gene-gene interaction in the T1D data were observed between the IL2RA rs2104286 and GIMAP4 rs9640279 (OR 1.52, p = 0.0064) and indicated between INS rs689 and GIMAP5 rs2286899. The follow-up functional analyses revealed lower IL-2RA expression upon GIMAP4 knockdown and an effect of GIMAP5 rs2286899 genotype on protein expression. Thus, the potential role of GIMAP4 and GIMAP5 as modifiers of immune-mediated diseases cannot be discarded.
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Affiliation(s)
- Mirkka T Heinonen
- Turku Centre of Biotechnology, University of Turku and Åbo Akademi University, 20520 Turku, Finland; Department of Biology, University of Turku, 20014 Turku, Finland; Turku Doctoral Programme of Molecular Medicine, University of Turku, 20520 Turku Finland
| | - Antti-Pekka Laine
- Immunogenetics Laboratory, University of Turku, 20520 Turku, Finland
| | - Cilla Söderhäll
- Department of Bioscience and Nutrition and Center for Innovative Medicine, Karolinska Institutet, 141 83 Huddinge, Stockholm, Sweden
| | - Olena Gruzieva
- Institute of Environmental Medicine, Karolinska Institutet, 171 65 Solna, Stockholm, Sweden
| | - Sini Rautio
- Department of Information and Computer Science, Aalto University, 02150 Espoo, Finland
| | - Erik Melén
- Institute of Environmental Medicine, Karolinska Institutet, 171 65 Solna, Stockholm, Sweden; Karolinska University Hospital, Astrid Lindgren Children's Hospital, 171 76 Solna, Stockholm, Sweden
| | - Göran Pershagen
- Institute of Environmental Medicine, Karolinska Institutet, 171 65 Solna, Stockholm, Sweden
| | - Harri J Lähdesmäki
- Turku Centre of Biotechnology, University of Turku and Åbo Akademi University, 20520 Turku, Finland; Institute of Environmental Medicine, Karolinska Institutet, 171 65 Solna, Stockholm, Sweden
| | - Mikael Knip
- Children's Hospital, University of Helsinki and Helsinki University Hospital, 00029 Helsinki, Finland; Research Programs Unit, Diabetes and Obesity, University of Helsinki, 00290 Helsinki, Finland; Department of Pediatrics, Tampere University Hospital, 33521 Tampere, Finland; Folkhälsan Research Institute, 00290 Helsinki, Finland
| | - Jorma Ilonen
- Immunogenetics Laboratory, University of Turku, 20520 Turku, Finland; Department of Clinical Microbiology, University of Eastern Finland, 70211 Kuopio, Finland; and
| | | | - Juha Kere
- Department of Bioscience and Nutrition and Center for Innovative Medicine, Karolinska Institutet, 141 83 Huddinge, Stockholm, Sweden; Molecular Neurology Research Program, University of Helsinki and Folkhälsan Institute of Genetics, 00290 Helsinki, Finland
| | - Riitta Lahesmaa
- Turku Centre of Biotechnology, University of Turku and Åbo Akademi University, 20520 Turku, Finland;
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Portuesi R, Cherubini C, Gizzi A, Buzzetti R, Pozzilli P, Filippi S. A stochastic mathematical model to study the autoimmune progression towards type 1 diabetes. Diabetes Metab Res Rev 2013; 29:194-203. [PMID: 23229223 DOI: 10.1002/dmrr.2382] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Revised: 11/19/2012] [Accepted: 11/30/2012] [Indexed: 11/11/2022]
Abstract
BACKGROUND The integrity of the interactions and the 3D architecture among beta cell populations in pancreatic islets is critical for proper biosynthesis, storage and release of insulin. The aim of this study was to evaluate the effect on electrophysiological signalling of beta cells that is produced by progressive lymphocytic islet cell infiltration (insulitis), by modelling the disruption of pancreatic islet anatomy as a consequence of insulitis and altered glucose concentrations. METHODS On the basis of histopathological images of murine islets from non-obese diabetic mice, we simulated the electrophysiological dynamics of a 3D cluster of mouse beta cells via a stochastic model. Progressive damage was modelled at different glucose concentrations, representing the different glycaemic states in the autoimmune progression towards type 1 diabetes. RESULTS At 31% of dead beta cells (normoglycaemia) and 69% (hyperglycaemia), the system appeared to be biologically robust to maintain regular Ca(2+) ion oscillations guaranteeing an effective insulin release. Simulations at 84%, 94% and 98% grades (severe hyperglycemia) showed that intracellular calcium oscillations were absent. In such conditions, insulin pulsatility is not expected to occur. CONCLUSIONS Our results suggest that the islet tissue is biophysically robust enough to compensate for high rates of beta cell loss. These predictions can be experimentally tested in vitro by quantifying space and time electrophysiological dynamics of animal islets kept at different glucose gradients. The model indicates the necessity of maintaining glycaemia within the physiological range as soon as possible after diabetes onset to avoid a dramatic interruption of Ca(2+) pulsatility and the consequent drop of insulin release.
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Affiliation(s)
- R Portuesi
- Department of Endocrinology and Diabetes, University Campus Bio-Medico, Rome, Italy
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Marietta EV, Murray JA. Animal models to study gluten sensitivity. Semin Immunopathol 2012; 34:497-511. [PMID: 22572887 PMCID: PMC3410984 DOI: 10.1007/s00281-012-0315-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Accepted: 04/19/2012] [Indexed: 12/13/2022]
Abstract
The initial development and maintenance of tolerance to dietary antigens is a complex process that, when prevented or interrupted, can lead to human disease. Understanding the mechanisms by which tolerance to specific dietary antigens is attained and maintained is crucial to our understanding of the pathogenesis of diseases related to intolerance of specific dietary antigens. Two diseases that are the result of intolerance to a dietary antigen are celiac disease (CD) and dermatitis herpetiformis (DH). Both of these diseases are dependent upon the ingestion of gluten (the protein fraction of wheat, rye, and barley) and manifest in the gastrointestinal tract and skin, respectively. These gluten-sensitive diseases are two examples of how devastating abnormal immune responses to a ubiquitous food can be. The well-recognized risk genotype for both is conferred by either of the HLA class II molecules DQ2 or DQ8. However, only a minority of individuals who carry these molecules will develop either disease. Also of interest is that the age at diagnosis can range from infancy to 70-80 years of age. This would indicate that intolerance to gluten may potentially be the result of two different phenomena. The first would be that, for various reasons, tolerance to gluten never developed in certain individuals, but that for other individuals, prior tolerance to gluten was lost at some point after childhood. Of recent interest is the concept of non-celiac gluten sensitivity, which manifests as chronic digestive or neurologic symptoms due to gluten, but through mechanisms that remain to be elucidated. This review will address how animal models of gluten-sensitive disorders have substantially contributed to a better understanding of how gluten intolerance can arise and cause disease.
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Hillebrands JL, Rozing J, Visser JTJ. Comment on "Type 1 diabetes in BioBreeding rats is critically linked to an imbalance between Th17 and regulatory T cells and an altered TCR repertoire". THE JOURNAL OF IMMUNOLOGY 2011; 186:1297-8; author reply 1298-9. [PMID: 21248265 DOI: 10.4049/jimmunol.1090132] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
MESH Headings
- Animals
- Cell Differentiation/immunology
- Cells, Cultured
- Diabetes Mellitus, Type 1/immunology
- Diabetes Mellitus, Type 1/metabolism
- Diabetes Mellitus, Type 1/pathology
- Lymphocyte Count
- Rats
- Rats, Inbred BB
- Receptors, Antigen, T-Cell/deficiency
- Receptors, Antigen, T-Cell/metabolism
- T-Lymphocytes, Helper-Inducer/immunology
- T-Lymphocytes, Helper-Inducer/metabolism
- T-Lymphocytes, Helper-Inducer/pathology
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- T-Lymphocytes, Regulatory/pathology
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Visser JTJ, Lammers K, Hoogendijk A, Boer MW, Brugman S, Beijer-Liefers S, Zandvoort A, Harmsen H, Welling G, Stellaard F, Bos NA, Fasano A, Rozing J. Restoration of impaired intestinal barrier function by the hydrolysed casein diet contributes to the prevention of type 1 diabetes in the diabetes-prone BioBreeding rat. Diabetologia 2010; 53:2621-8. [PMID: 20853098 PMCID: PMC2974912 DOI: 10.1007/s00125-010-1903-9] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2010] [Accepted: 07/23/2010] [Indexed: 01/19/2023]
Abstract
AIMS/HYPOTHESIS Impaired intestinal barrier function is observed in type 1 diabetes patients and animal models of the disease. Exposure to diabetogenic antigens from the intestinal milieu due to a compromised intestinal barrier is considered essential for induction of the autoimmune process leading to type 1 diabetes. Since a hydrolysed casein (HC) diet prevents autoimmune diabetes onset in diabetes-prone (DP)-BioBreeding (BB) rats, we studied the role of the HC diet on intestinal barrier function and, therefore, prevention of autoimmune diabetes onset in this animal model. METHODS DP-BB rats were fed the HC diet from weaning onwards and monitored for autoimmune diabetes development. Intestinal permeability was assessed in vivo by lactulose-mannitol test and ex vivo by measuring transepithelial electrical resistance (TEER). Levels of serum zonulin, a physiological tight junction modulator, were measured by ELISA. Ileal mRNA expression of Myo9b, Cldn1, Cldn2 and Ocln (which encode the tight junction-related proteins myosin IXb, claudin-1, claudin-2 and occludin) and Il-10, Tgf-ß (also known as Il10 and Tgfb, respectively, which encode regulatory cytokines) was analysed by quantitative PCR. RESULTS The HC diet reduced autoimmune diabetes by 50% in DP-BB rats. In DP-BB rats, prediabetic gut permeability negatively correlated with the moment of autoimmune diabetes onset. The improved intestinal barrier function that was induced by HC diet in DP-BB rats was visualised by decreasing lactulose:mannitol ratio, decreasing serum zonulin levels and increasing ileal TEER. The HC diet modified ileal mRNA expression of Myo9b, and Cldn1 and Cldn2, but left Ocln expression unaltered. CONCLUSIONS/INTERPRETATION Improved intestinal barrier function might be an important intermediate in the prevention of autoimmune diabetes by the HC diet in DP-BB rats. Effects on tight junctions, ileal cytokines and zonulin production might be important mechanisms for this effect.
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Affiliation(s)
- J T J Visser
- Department of Cell Biology, Section Immunology, University Medical Center Groningen, University of Groningen, PO Box 196, 9700 AD Groningen, the Netherlands.
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Valladares R, Sankar D, Li N, Williams E, Lai KK, Abdelgeliel AS, Gonzalez CF, Wasserfall CH, Larkin J, Schatz D, Atkinson MA, Triplett EW, Neu J, Lorca GL. Lactobacillus johnsonii N6.2 mitigates the development of type 1 diabetes in BB-DP rats. PLoS One 2010; 5:e10507. [PMID: 20463897 PMCID: PMC2865539 DOI: 10.1371/journal.pone.0010507] [Citation(s) in RCA: 191] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2010] [Accepted: 04/12/2010] [Indexed: 11/24/2022] Open
Abstract
Background The intestinal epithelium is a barrier that composes one of the most immunologically active surfaces of the body due to constant exposure to microorganisms as well as an infinite diversity of food antigens. Disruption of intestinal barrier function and aberrant mucosal immune activation have been implicated in a variety of diseases within and outside of the gastrointestinal tract. With this model in mind, recent studies have shown a link between diet, composition of intestinal microbiota, and type 1 diabetes pathogenesis. In the BioBreeding rat model of type 1 diabetes, comparison of the intestinal microbial composition of diabetes prone and diabetes resistant animals found Lactobacillus species were negatively correlated with type 1 diabetes development. Two species, Lactobacillus johnsonii and L. reuteri, were isolated from diabetes resistant rats. In this study diabetes prone rats were administered pure cultures of L. johnsonii or L. reuteri isolated from diabetes resistant rats to determine the effect on type 1 diabetes development. Methodology/Principal Findings Results Rats administered L. johnsonii, but not L. reuteri, post-weaning developed type 1 diabetes at a protracted rate. Analysis of the intestinal ileum showed administration of L. johnsonii induced changes in the native microbiota, host mucosal proteins, and host oxidative stress response. A decreased oxidative intestinal environment was evidenced by decreased expression of several oxidative response proteins in the intestinal mucosa (Gpx1, GR, Cat). In L. johnsonii fed animals low levels of the pro-inflammatory cytokine IFNγ were correlated with low levels of iNOS and high levels of Cox2. The administration of L. johnsonii also resulted in higher levels of the tight junction protein claudin. Conclusions It was determined that the administration of L. johnsonii isolated from BioBreeding diabetes resistant rats delays or inhibits the onset of type 1 diabetes in BioBreeding diabetes prone rats. Taken collectively, these data suggest that the gut and the gut microbiota are potential agents of influence in type 1 diabetes development. These data also support therapeutic efforts that seek to modify gut microbiota as a means to modulate development of this disorder.
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Affiliation(s)
- Ricardo Valladares
- Department of Microbiology and Cell Science, University of Florida, Gainesville, Florida, United States of America
| | - Dhyana Sankar
- Department of Pediatrics, University of Florida, Gainesville, Florida, United States of America
| | - Nan Li
- Department of Pediatrics, University of Florida, Gainesville, Florida, United States of America
| | - Emily Williams
- Department of Microbiology and Cell Science, University of Florida, Gainesville, Florida, United States of America
| | - Kin-Kwan Lai
- Department of Microbiology and Cell Science, University of Florida, Gainesville, Florida, United States of America
| | - Asmaa Sayed Abdelgeliel
- Department of Microbiology and Cell Science, University of Florida, Gainesville, Florida, United States of America
| | - Claudio F. Gonzalez
- Department of Microbiology and Cell Science, University of Florida, Gainesville, Florida, United States of America
| | - Clive H. Wasserfall
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, Florida, United States of America
| | - Joseph Larkin
- Department of Microbiology and Cell Science, University of Florida, Gainesville, Florida, United States of America
| | - Desmond Schatz
- Department of Pediatrics, University of Florida, Gainesville, Florida, United States of America
| | - Mark A. Atkinson
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, Florida, United States of America
| | - Eric W. Triplett
- Department of Microbiology and Cell Science, University of Florida, Gainesville, Florida, United States of America
| | - Josef Neu
- Department of Pediatrics, University of Florida, Gainesville, Florida, United States of America
| | - Graciela L. Lorca
- Department of Microbiology and Cell Science, University of Florida, Gainesville, Florida, United States of America
- * E-mail:
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Sonier B, Patrick C, Ajjikuttira P, Scott FW. Intestinal Immune Regulation as a Potential Diet-Modifiable Feature of Gut Inflammation and Autoimmunity. Int Rev Immunol 2009; 28:414-45. [DOI: 10.3109/08830180903208329] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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