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Noori E, Hashemi N, Rezaee D, Maleki R, Shams F, Kazemi B, Bandepour M, Rahimi F. Potential therapeutic options for celiac Disease: An update on Current evidence from Gluten-Free diet to cell therapy. Int Immunopharmacol 2024; 133:112020. [PMID: 38608449 DOI: 10.1016/j.intimp.2024.112020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 04/01/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024]
Abstract
Celiac disease (CD) is a chronic autoimmune enteropathy and multifactorial disease caused by inappropriate immune responses to gluten in the small intestine. Weight loss, anemia, osteoporosis, arthritis, and hepatitis are among the extraintestinal manifestations of active CD. Currently, a strict lifelong gluten-free diet (GFD) is the only safe, effective, and available treatment. Despite the social burden, high expenses, and challenges of following a GFD, 2 to 5 percent of patients do not demonstrate clinical or pathophysiological improvement. Therefore, we need novel and alternative therapeutic approaches for patients. Innovative approaches encompass a broad spectrum of strategies, including enzymatic degradation of gluten, inhibition of intestinal permeability, modulation of the immune response, inhibition of the transglutaminase 2 (TG2) enzyme, blocking antigen presentation by HLA-DQ2/8, and induction of tolerance. Hence, this review is focused on comprehensive therapeutic strategies ranging from dietary approaches to novel methods such as antigen-based immunotherapy, cell and gene therapy, and the usage of nanoparticles for CD treatment.
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Affiliation(s)
- Effat Noori
- Department of Biotechnology, Faculty of Medicine, Shahed University, Tehran, Iran.
| | - Nader Hashemi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Delsuz Rezaee
- School of Allied Medical Sciences, Ilam University of Medical Sciences, Ilam, Iran; Department of Medical Biotechnology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Reza Maleki
- Adelaide Medical School, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Forough Shams
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Bahram Kazemi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mojgan Bandepour
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fardin Rahimi
- Department of Biotechnology, Faculty of Medicine, Shahed University, Tehran, Iran
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2
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Annunziato A, Vacca M, Cristofori F, Dargenio VN, Celano G, Francavilla R, De Angelis M. Celiac Disease: The Importance of Studying the Duodenal Mucosa-Associated Microbiota. Nutrients 2024; 16:1649. [PMID: 38892582 PMCID: PMC11174386 DOI: 10.3390/nu16111649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 05/24/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024] Open
Abstract
There is increasing evidence indicating that changes in both the composition and functionality of the intestinal microbiome are closely associated with the development of several chronic inflammatory diseases, with celiac disease (CeD) being particularly noteworthy. Thanks to the advent of culture-independent methodologies, the ability to identify and quantify the diverse microbial communities residing within the human body has been significantly improved. However, in the context of CeD, a notable challenge lies in characterizing the specific microbiota present on the mucosal surfaces of the intestine, rather than relying solely on fecal samples, which may not fully represent the relevant microbial populations. Currently, our comprehension of the composition and functional importance of mucosa-associated microbiota (MAM) in CeD remains an ongoing field of research because the limited number of available studies have reported few and sometimes contradictory results. MAM plays a crucial role in the development and progression of CeD, potentially acting as both a trigger and modulator of the immune response within the intestinal mucosa, given its proximity to the epithelial cells and direct interaction. According to this background, this review aims to consolidate the existing literature specifically focused on MAM in CeD. By elucidating the complex interplay between the host immune system and the gut microbiota, we aim to pave the way for new interventions based on novel therapeutic targets and diagnostic biomarkers for MAM in CeD.
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Affiliation(s)
- Alessandro Annunziato
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/a, 70126 Bari, Italy; (A.A.); (G.C.); (M.D.A.)
| | - Mirco Vacca
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/a, 70126 Bari, Italy; (A.A.); (G.C.); (M.D.A.)
| | - Fernanda Cristofori
- Interdisciplinary Department of Medicine, Pediatric Section, Children’s Hospital ‘Giovanni XXIII’, University of Bari Aldo Moro, 70126 Bari, Italy; (F.C.); (V.N.D.); (R.F.)
| | - Vanessa Nadia Dargenio
- Interdisciplinary Department of Medicine, Pediatric Section, Children’s Hospital ‘Giovanni XXIII’, University of Bari Aldo Moro, 70126 Bari, Italy; (F.C.); (V.N.D.); (R.F.)
| | - Giuseppe Celano
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/a, 70126 Bari, Italy; (A.A.); (G.C.); (M.D.A.)
| | - Ruggiero Francavilla
- Interdisciplinary Department of Medicine, Pediatric Section, Children’s Hospital ‘Giovanni XXIII’, University of Bari Aldo Moro, 70126 Bari, Italy; (F.C.); (V.N.D.); (R.F.)
| | - Maria De Angelis
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/a, 70126 Bari, Italy; (A.A.); (G.C.); (M.D.A.)
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Felber J, Bläker H, Fischbach W, Koletzko S, Laaß M, Lachmann N, Lorenz P, Lynen P, Reese I, Scherf K, Schuppan D, Schumann M, Aust D, Baas S, Beisel S, de Laffolie J, Duba E, Holtmeier W, Lange L, Loddenkemper C, Moog G, Rath T, Roeb E, Rubin D, Stein J, Török H, Zopf Y. Aktualisierte S2k-Leitlinie Zöliakie der Deutschen Gesellschaft für Gastroenterologie, Verdauungs- und Stoffwechselkrankheiten (DGVS). ZEITSCHRIFT FUR GASTROENTEROLOGIE 2022; 60:790-856. [PMID: 35545109 DOI: 10.1055/a-1741-5946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Jörg Felber
- Medizinische Klinik II - Gastroenterologie, Hepatologie, Endokrinologie, Hämatologie und Onkologie, RoMed Klinikum Rosenheim, Rosenheim, Deutschland
| | - Hendrik Bläker
- Institut für Pathologie, Universitätsklinikum Leipzig AöR, Leipzig, Deutschland
| | | | - Sibylle Koletzko
- Kinderklinik und Kinderpoliklinik im Dr. von Haunerschen Kinderspital, LMU-Klinikum München, München, Deutschland.,Department of Pediatrics, Gastroenterology and Nutrition, School of Medicine Collegium Medicum University of Warmia and Mazury, 10-719 Olsztyn, Polen
| | - Martin Laaß
- Klinik und Poliklinik für Kinder- und Jugendmedizin, Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Dresden, Deutschland
| | - Nils Lachmann
- Institut für Transfusionsmedizin, Charité - Universitätsmedizin Berlin, Berlin, Deutschland
| | - Pia Lorenz
- Deutsche Gesellschaft für Gastroenterologie, Verdauungs- und Stoffwechselkrankheiten (DGVS), Berlin, Deutschland
| | - Petra Lynen
- Deutsche Gesellschaft für Gastroenterologie, Verdauungs- und Stoffwechselkrankheiten (DGVS), Berlin, Deutschland
| | - Imke Reese
- Ernährungsberatung und -therapie Allergologie, München, Deutschland
| | - Katharina Scherf
- Institute of Applied Biosciences Department of Bioactive and Functional Food Chemistry, Karlsruhe Institute of Technology (KIT), Karlsruhe, Deutschland
| | - Detlef Schuppan
- Institut für Translationale Immunologie, Johannes Gutenberg-Universität Mainz, Mainz, Deutschland.,Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Michael Schumann
- Medizinische Klinik I für Gastroenterologie, Infektiologie und Rheumatologie, Charité - Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Deutschland
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Zhu X, Zhao XH, Zhang Q, Zhang N, Soladoye OP, Aluko RE, Zhang Y, Fu Y. How does a celiac iceberg really float? The relationship between celiac disease and gluten. Crit Rev Food Sci Nutr 2022; 63:9233-9261. [PMID: 35435771 DOI: 10.1080/10408398.2022.2064811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Celiac disease (CD) is an autoimmune intestinal disease caused by intolerance of genetically susceptible individuals after intake of gluten-containing grains (including wheat, barley, etc.) and their products. Currently, CD, with "iceberg" characteristics, affects a large population and is distributed over a wide range of individuals. This present review summarizes the latest research progress on the relationship between CD and gluten. Furthermore, the structure and function of gluten peptides related to CD, gluten detection methods, the effects of processing on gluten and gluten-free diets are emphatically reviewed. In addition, the current limitations in CD research are also discussed. The present work facilitates a comprehensive understanding of CD as well as gluten, which can provide a theoretical reference for future research.
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Affiliation(s)
- Xiaoxue Zhu
- College of Food Science, Southwest University, Chongqing, China
- National Demonstration Center for Experimental Food Science and Technology Education, Southwest University, Chongqing, China
| | - Xin-Huai Zhao
- School of Biological and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, P. R. China
| | - Qiang Zhang
- School of Biological and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, P. R. China
| | - Na Zhang
- Key Laboratory of Food Science and Engineering of Heilongjiang Province, College of Food Engineering, Harbin University of Commerce, Harbin, China
| | - Olugbenga P Soladoye
- Agriculture and Agri-Food Canada, Government of Canada, Lacombe Research and Development Centre, Lacombe, Alberta, Canada
| | - Rotimi E Aluko
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Yuhao Zhang
- College of Food Science, Southwest University, Chongqing, China
- National Demonstration Center for Experimental Food Science and Technology Education, Southwest University, Chongqing, China
| | - Yu Fu
- College of Food Science, Southwest University, Chongqing, China
- National Demonstration Center for Experimental Food Science and Technology Education, Southwest University, Chongqing, China
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5
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An efficient urine peptidomics workflow identifies chemically defined dietary gluten peptides from patients with celiac disease. Nat Commun 2022; 13:888. [PMID: 35173144 PMCID: PMC8850430 DOI: 10.1038/s41467-022-28353-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 01/20/2022] [Indexed: 12/11/2022] Open
Abstract
Celiac disease (CeD) is an autoimmune disorder induced by consuming gluten proteins from wheat, barley, and rye. Glutens resist gastrointestinal proteolysis, resulting in peptides that elicit inflammation in patients with CeD. Despite well-established connections between glutens and CeD, chemically defined, bioavailable peptides produced from dietary proteins have never been identified from humans in an unbiased manner. This is largely attributable to technical challenges, impeding our knowledge of potentially diverse peptide species that encounter the immune system. Here, we develop a liquid chromatographic-mass spectrometric workflow for untargeted sequence analysis of the urinary peptidome. We detect over 600 distinct dietary peptides, of which ~35% have a CeD-relevant T cell epitope and ~5% are known to stimulate innate immune responses. Remarkably, gluten peptides from patients with CeD qualitatively and quantitatively differ from controls. Our results provide a new foundation for understanding gluten immunogenicity, improving CeD management, and characterizing the dietary and urinary peptidomes. Gluten peptides from wheat enter the bloodstream and are excreted in urine but are yet to be chemically characterised. Here, the authors show by mass spectrometry that quantitative and qualitative differences in urinary peptides can be detected between healthy people and patients with celiac disease.
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Verma A, Lata K, Khanna A, Singh R, Sachdeva A, Jindal P, Yadav S. Study of effect of gluten-free diet on vitamin D levels and bone mineral density in celiac disease patients. J Family Med Prim Care 2022; 11:603-607. [PMID: 35360767 PMCID: PMC8963631 DOI: 10.4103/jfmpc.jfmpc_1190_21] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 10/12/2021] [Accepted: 10/20/2021] [Indexed: 11/30/2022] Open
Abstract
Objective: Celiac disease (CD) is a multifactorial immune-mediated enteropathy caused by a response to ingested gluten. The current available treatment for CD is lifelong gluten-free diet (GFD). This study was done to see the effect of GFD on Vitamin D levels and bone mass density in celiac patients. Methods: A prospective interventional study on newly diagnosed celiac patients was conducted in the Pediatrics department of a tertiary care teaching institute in 2 stages viz. on presentation and after 6 months of GFD. Anthropometric measurements, biochemical investigations, Vitamin D levels, and DEXA scan was done at recruitment and after 6 months of GFD and was analyzed. Results: In newly diagnosed 60 pediatric celiac patients, positive effect of GFD on anthropometry, hemoglobin, Vitamin D levels, DEXA scan parameters was observed. Significant difference was found in Vitamin D levels which increased from baseline 14.85 ± 5.39 to 18.22 ± 5.67 ng/ml after 6 months of GFD (P < 0.05). Significant difference was found in BMD (mean Z-score) which increased from -0.941 ± 0.738 to -0.640 ± 0.60 after 6 months of GFD (P < 0.001). Conclusion: Our study concluded that there is significant increase in vitamin D levels as well as Z-score, bone mass density (BMD) and bone Mass Content (BMC) after 6 months of GFD.
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The Gluten-Free Diet for Celiac Disease and Beyond. Nutrients 2021; 13:nu13113993. [PMID: 34836247 PMCID: PMC8625243 DOI: 10.3390/nu13113993] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/02/2021] [Accepted: 11/03/2021] [Indexed: 12/20/2022] Open
Abstract
The gluten-free diet (GFD) has gained popularity beyond its main medical indication as the treatment for gluten-induced immune-mediated disorders such as celiac disease (CD), dermatitis herpetiformis, gluten ataxia, wheat allergy, and non-celiac gluten sensitivity. However, the diet carries some disadvantages such as elevated costs, nutritional deficiencies, and social and psychological barriers. The present work aims to review indications, proven benefits, and adverse events of a gluten-free diet. Close follow-up with patients following the diet is recommended. More data is needed to assess the effectiveness of the diet in managing mental and cognitive disorders and to establish a connection between the brain and gluten.
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Gao J, Du H, Zhou Z, Liang Z, Liang H, Zhang P, Wei X, Liu S, Fu L, Wang Y, Che H, Xue W, Xin F, Yang D. Thermal and Acidic Treatments of Gluten Epitopes Affect Their Recognition by HLA-DQ2 in silico. Front Nutr 2021; 8:647750. [PMID: 34095188 PMCID: PMC8169964 DOI: 10.3389/fnut.2021.647750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 04/08/2021] [Indexed: 11/13/2022] Open
Abstract
Celiac disease (CD) is a prevalent disorder with autoimmune features. Dietary exposure of wheat gluten (including gliadins and glutenins) to the small intestine activates the gluten-reactive CD4+ T cells and controls the disease development. While the human leukocyte antigen (HLA) is the single most important genetic factor of this polygenic disorder, HLA-DQ2 recognition of gluten is the major biological step among patients with CD. Gluten epitopes are often rich in Pro and share similar primary sequences. Here, we simulated the solution structures changes of a variety of gluten epitopes under different pH and temperatures, to mimic the fermentation and baking/cooking processes. Based on the crystal structure of HLA-DQ2, binding of differently processed gluten epitopes to DQ2 was studied in silico. This study revealed that heating and pH change during the fermentation process impact the solution structure of gluten epitope. However, binding of differently treated gluten epitope peptide (GEP) to HLA-DQ2 mainly depended on its primary amino acid sequence, especially acidic amino acid residues that play a pivotal role in their recognition by HLA-DQ2.
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Affiliation(s)
- Jihui Gao
- Beijing Key Laboratory of Functional Food From Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Haolan Du
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zekun Zhou
- Beijing Key Laboratory of Functional Food From Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Zhongxin Liang
- Beijing Key Laboratory of Functional Food From Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Hongrui Liang
- Beijing Key Laboratory of Functional Food From Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - PeiAo Zhang
- Beijing Key Laboratory of Functional Food From Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Xue Wei
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shujun Liu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Linglin Fu
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Yanbo Wang
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Huilian Che
- Beijing Key Laboratory of Functional Food From Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Wentong Xue
- Beijing Key Laboratory of Functional Food From Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Fengjiao Xin
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Dong Yang
- Beijing Key Laboratory of Functional Food From Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
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Gluten-Free Rice Instant Pasta: Effect of Extrusion-Cooking Parameters on Selected Quality Attributes and Microstructure. Processes (Basel) 2021. [DOI: 10.3390/pr9040693] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
In the present study, we applied extrusion-cooking to polished rice flour so as to prepare gluten-free pasta. The aim of the work was to investigate the effect of feed moisture (28, 30 and 32%) and screw speed (60, 80 and 100 rpm) on selected rice pasta quality attributes (water absorption, cooking loss, firmness, stickiness and microstructure) and extrusion response (specific mechanical energy). Our results showed that feed moisture significantly affected all tested quality attributes of the rice pasta, while screw speed exhibited a significant effect on all quality attributes except cooking time and stickiness. Moreover, raising the feed moisture increased the cooking time, water absorption, cooking loss, hardness and stickiness, but decreased the firmness at high screw speed. In addition, increasing the screw speed enhanced the cooking loss and hardness, but diminished the water absorption and firmness of pasta with low feed moisture. Rice pasta prepared with 30% moisture content and at 80 rpm showed adequate quality, as confirmed by a firm texture and low cooking loss and stickiness. Microstructure analysis showed a compact and dense internal structure of the dry pasta, and the surface was smooth and even when at least 30% moisture was applied at 80 rpm screw speed during processing.
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Kõiv V, Tenson T. Gluten-degrading bacteria: availability and applications. Appl Microbiol Biotechnol 2021; 105:3045-3059. [PMID: 33837830 PMCID: PMC8053163 DOI: 10.1007/s00253-021-11263-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/18/2021] [Accepted: 03/31/2021] [Indexed: 12/11/2022]
Abstract
Gluten is a mixture of storage proteins in wheat and occurs in smaller amounts in other cereal grains. It provides favorable structure to bakery products but unfortunately causes disease conditions with increasing prevalence. In the human gastrointestinal tract, gluten is cleaved into proline and gluten rich peptides that are not degraded further. These peptides trigger immune responses that might lead to celiac disease, wheat allergy, and non-celiac gluten sensitivity. The main treatment option is a gluten-free diet. Alternatively, using enzymes or microorganisms with gluten-degrading properties might alleviate the disease. These components can be used during food production or could be introduced into the digestive tract as food supplements. In addition, natural food from the environment is known to enrich the microbial communities in gut and natural environmental microbial communities have high potential to degrade gluten. It remains to be investigated if food and environment-induced changes in the gut microbiome could contribute to the triggering of gluten-related diseases. KEY POINTS: • Wheat proteins, gluten, are incompletely digested in human digestive tract leading to gluten intolerance. • The only efficient treatment of gluten intolerance is life-long gluten-free diet. • Environmental bacteria acquired together with food could be source of gluten-degrading bacteria detoxifying undigested gluten peptides.
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Affiliation(s)
- Viia Kõiv
- Institute of Technology, University of Tartu, Tartu, Estonia.
| | - Tanel Tenson
- Institute of Technology, University of Tartu, Tartu, Estonia
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De Angelis M, Siragusa S, Vacca M, Di Cagno R, Cristofori F, Schwarm M, Pelzer S, Flügel M, Speckmann B, Francavilla R, Gobbetti M. Selection of Gut-Resistant Bacteria and Construction of Microbial Consortia for Improving Gluten Digestion under Simulated Gastrointestinal Conditions. Nutrients 2021; 13:nu13030992. [PMID: 33808622 PMCID: PMC8003469 DOI: 10.3390/nu13030992] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/11/2021] [Accepted: 03/17/2021] [Indexed: 12/12/2022] Open
Abstract
This work aimed to define the microbial consortia that are able to digest gluten into non-toxic and non-immunogenic peptides in the human gastrointestinal tract. Methods: 131 out of 504 tested Bacillus and lactic acid bacteria, specifically Bacillus (64), lactobacilli (63), Pediococcus (1), and Weissella (3), showed strong gastrointestinal resistance and were selected for their PepN, PepI, PepX, PepO, and PepP activities toward synthetic substrates. Based on multivariate analysis, 24 strains were clearly distinct from the other tested strains based on having the highest enzymatic activities. As estimated by RP-HPLC and nano-ESI–MS/MS, 6 cytoplasmic extracts out of 24 selected strains showed the ability to hydrolyze immunogenic epitopes, specifically 57–68 of α9-gliadin, 62–75 of A-gliadin, 134–153 of γ-gliadin, and 57–89 (33-mer) of α2-gliadin. Live and lysed cells of selected strains were combined into different microbial consortia for hydrolyzing gluten under gastrointestinal conditions. Commercial proteolytic enzymes (Aspergillusoryzae E1, Aspergillusniger E2, Bacillussubtilis Veron HPP, and Veron PS proteases) were also added to each microbial consortium. Consortium activity was evaluated by ELISA tests, RP-HPLC-nano-ESI–MS/MS, and duodenal explants from celiac disease patients. Results: two microbial consortia (Consortium 4: Lactiplantibacillus (Lp.) plantarum DSM33363 and DSM33364, Lacticaseibacillus (Lc.) paracasei DSM33373, Bacillussubtilis DSM33298, and Bacilluspumilus DSM33301; and Consortium 16: Lp. plantarum DSM33363 and DSM33364, Lc. paracasei DSM33373, Limosilactobacillusreuteri DSM33374, Bacillusmegaterium DSM33300, B.pumilus DSM33297 and DSM33355), containing commercial enzymes, were able to hydrolyze gluten to non-toxic and non-immunogenic peptides under gastrointestinal conditions. Conclusions: the results of this study provide evidence that selected microbial consortia could potentially improve the digestion of gluten in gluten-sensitive patients by hydrolyzing the immunogenic peptides during gastrointestinal digestion.
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Affiliation(s)
- Maria De Angelis
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, 70126 Bari, Italy; (M.D.A.); (S.S.); (M.V.)
| | - Sonya Siragusa
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, 70126 Bari, Italy; (M.D.A.); (S.S.); (M.V.)
| | - Mirco Vacca
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, 70126 Bari, Italy; (M.D.A.); (S.S.); (M.V.)
| | - Raffaella Di Cagno
- Faculty of Science and Technology, Free University of Bozen, 39100 Bolzano, Italy;
| | - Fernanda Cristofori
- Interdisciplinary Department of Medicine-Pediatric Section, University of Bari Aldo Moro, Ospedale Pediatrico Giovanni XXIII, 70125 Bari, Italy; (F.C.); (R.F.)
| | - Michael Schwarm
- Evonik Operations GmbH, 63457 Hanau-Wolfgang, Germany; (M.S.); (S.P.); (M.F.); (B.S.)
| | - Stefan Pelzer
- Evonik Operations GmbH, 63457 Hanau-Wolfgang, Germany; (M.S.); (S.P.); (M.F.); (B.S.)
| | - Monika Flügel
- Evonik Operations GmbH, 63457 Hanau-Wolfgang, Germany; (M.S.); (S.P.); (M.F.); (B.S.)
| | - Bodo Speckmann
- Evonik Operations GmbH, 63457 Hanau-Wolfgang, Germany; (M.S.); (S.P.); (M.F.); (B.S.)
| | - Ruggiero Francavilla
- Interdisciplinary Department of Medicine-Pediatric Section, University of Bari Aldo Moro, Ospedale Pediatrico Giovanni XXIII, 70125 Bari, Italy; (F.C.); (R.F.)
| | - Marco Gobbetti
- Faculty of Science and Technology, Free University of Bozen, 39100 Bolzano, Italy;
- Correspondence: ; Tel.: +39-0471-017215
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Dias R, Pereira CB, Pérez-Gregorio R, Mateus N, Freitas V. Recent advances on dietary polyphenol's potential roles in Celiac Disease. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2020.10.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Abstract
Wheat-based foods have been staple foods since about 10,000 years and constitute a major source of energy, dietary fiber, and micronutrients for the world population. The role of wheat in our diet, however, has recently been scrutinized by pseudoscientific books and media reports promoting the overall impression that wheat consumption makes people sick, stupid, fat, and addicted. Consequently, numerous consumers in Western countries have started to question their dietary habits related to wheat consumption and voluntarily decided to adopt a wheat-free diet without a medical diagnosis of any wheat-related disorder (WRD), such as celiac disease, wheat allergy, or non-celiac gluten sensitivity. The aim of this review is to achieve an objective judgment of the positive aspects of wheat consumption as well as adverse effects for individuals suffering from WRDs. The first part presents wheat constituents and their positive nutritional value, in particular, the consumption of products from whole-grain flours. The second part is focused on WRDs that affect predisposed individuals and can be treated with a gluten-free or -reduced diet. Based on all available scientific knowledge, wheat consumption is safe and healthy for the vast majority of people. There is no scientific evidence to support that the general population would benefit from a wheat-free diet.
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Affiliation(s)
| | | | - Katharina A. Scherf
- Department of Bioactive and Functional Food Chemistry, Institute of Applied Biosciences, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
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14
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Asri N, Rostami-Nejad M, Rezaei-Tavirani M, Razzaghi M, Asadzadeh-Aghdaei H, Zali MR. Novel Therapeutic Strategies for Celiac Disease. Middle East J Dig Dis 2020; 12:229-237. [PMID: 33564379 PMCID: PMC7859609 DOI: 10.34172/mejdd.2020.187] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 09/08/2020] [Indexed: 12/18/2022] Open
Abstract
Celiac disease (CeD) is a widespread autoimmune enteropathy caused by dietary gluten peptides in genetically susceptible individuals, which includes a range of intestinal and extraintestinal manifestations. Currently, there is no effective treatment for CeD other than strict adherence to a gluten-free diet (GFD). However, persistent or frequent symptoms and also partial villus atrophy were observed in some patients with CeD due to intentional or inadvertent gluten exposure during the use of GFD. It means that GFD alone is not enough to control CeD symptoms and long-term complications. Accordingly, new therapeutic approaches for CeD treatment such as gluten proteolysis, removing gluten from the digestive tract, promoting tight junction assembly, inhibiting intestinal tissue transglutaminase 2, using probiotics, and developing immunotherapeutic methods have been proposed through different strategies. This review focused on discussing the novel therapeutic strategies for CeD management.
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Affiliation(s)
- Nastaran Asri
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Rostami-Nejad
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mostafa Rezaei-Tavirani
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammadreza Razzaghi
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Asadzadeh-Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Zali
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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15
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Pronin D, Börner A, Scherf KA. Old and modern wheat (Triticum aestivum L.) cultivars and their potential to elicit celiac disease. Food Chem 2020; 339:127952. [PMID: 33152854 DOI: 10.1016/j.foodchem.2020.127952] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/23/2020] [Accepted: 08/25/2020] [Indexed: 12/19/2022]
Abstract
One potential explanation for the increasing prevalence of celiac disease (CD) over the past decades is that breeding may have inadvertently changed the immunoreactive potential of wheat. To test this hypothesis, we quantitated four CD-active peptides, namely the 33-mer and peptides containing the DQ2.5-glia-α1a/DQ2.5-glia-α2 (P1), DQ2.5-glia-α3 (P2) and DQ2.5-glia-γ1 (P3) epitopes, in a set of 60 German hexaploid winter wheat cultivars from 1891 to 2010 and grown in three consecutive years. The contents of CD-active peptides were affected more by the harvest year than by the cultivar. The 33-mer and P1 peptides showed no tendency regarding their absolute contents in the flour, but they tended to increase slightly over time when calculated relative to the α-gliadins. No trends in relative or absolute values were observed for the P2 and P3 peptides derived from α- and γ-gliadins. Therefore, the immunoreactive potential of old and modern wheat cultivars appears to be similar.
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Affiliation(s)
- Darina Pronin
- Leibniz-Institute for Food Systems Biology at the Technical University of Munich, Lise-Meitner-Str. 34, 85354 Freising, Germany.
| | - Andreas Börner
- Genebank Department, Leibniz Institute of Plant Genetics and Crop Plant Research, Corrensstr. 3, 06466 Seeland, OT Gatersleben, Germany.
| | - Katharina Anne Scherf
- Leibniz-Institute for Food Systems Biology at the Technical University of Munich, Lise-Meitner-Str. 34, 85354 Freising, Germany; Department of Bioactive and Functional Food Chemistry, Institute of Applied Biosciences, Karlsruhe Institute of Technology (KIT), Adenauerring 20a, 76131 Karlsruhe, Germany.
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16
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Bristol AN, Carpenter BP, Davis AN, Kemp LK, Rangachari V, Karim S, Morgan SE. Aqueous RAFT Synthesis of Low Molecular Weight Anionic Polymers for Determination of Structure/Binding Interactions with Gliadin. Macromol Biosci 2020; 20:e2000125. [PMID: 32567240 DOI: 10.1002/mabi.202000125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/22/2020] [Indexed: 11/10/2022]
Abstract
Gliadin, a component of gluten and a known epitope, is implicated in celiac disease (CeD) and results in an inflammatory response in CeD patients when consumed. Acrylamide-based polyelectrolytes are employed as models to determine the effect of molecular weight and pendent group on non-covalent interaction modes with gliadin in vitro. Poly(sodium 2-acrylamido-2-methylpropane sulfonate) and poly(sodium 3-methylpropyl-3-butanoate) are synthesized via aqueous reversible addition fragmentation chain transfer (aRAFT) polymerization and characterized by gel permeation chromatography-multiangle laser light scattering. The polymer/gliadin blends are examined via circular dichroism, zeta potential measurements, 8-anilinonaphthalene-1-sulfonic acid fluorescence spectroscopy, and dynamic light scattering. Acrylamide polymers containing strong anionic pendent groups have a profound effect on gliadin secondary structure and solution behavior below the isoelectric point, while polymers containing hydrophobic character only have a minor impact. The polymers have little effect on gliadin secondary structure and solution behavior at the isoelectric point.
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Affiliation(s)
- Ashleigh N Bristol
- School of Polymer Science and Engineering, 118 College Dr., #5050, The University of Southern Mississippi, Hattiesburg, MS, 39406-5050, USA
| | - Brooke P Carpenter
- School of Polymer Science and Engineering, 118 College Dr., #5050, The University of Southern Mississippi, Hattiesburg, MS, 39406-5050, USA
| | - Ashley N Davis
- School of Polymer Science and Engineering, 118 College Dr., #5050, The University of Southern Mississippi, Hattiesburg, MS, 39406-5050, USA
| | - Lisa K Kemp
- School of Polymer Science and Engineering, 118 College Dr., #5050, The University of Southern Mississippi, Hattiesburg, MS, 39406-5050, USA
| | - Vijayaraghavan Rangachari
- Department of Chemistry and Biochemistry, The University of Southern Mississippi, Hattiesburg, MS, 39406-5050, USA
| | - Shahid Karim
- School of Biological, Environmental, and Earth Sciences, 118 College Dr., #5018, The University of Southern Mississippi, Hattiesburg, MS, 39406-5050, USA
| | - Sarah E Morgan
- School of Polymer Science and Engineering, 118 College Dr., #5050, The University of Southern Mississippi, Hattiesburg, MS, 39406-5050, USA
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17
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Abadie V, Kim SM, Lejeune T, Palanski BA, Ernest JD, Tastet O, Voisine J, Discepolo V, Marietta EV, Hawash MBF, Ciszewski C, Bouziat R, Panigrahi K, Horwath I, Zurenski MA, Lawrence I, Dumaine A, Yotova V, Grenier JC, Murray JA, Khosla C, Barreiro LB, Jabri B. IL-15, gluten and HLA-DQ8 drive tissue destruction in coeliac disease. Nature 2020; 578:600-604. [PMID: 32051586 PMCID: PMC7047598 DOI: 10.1038/s41586-020-2003-8] [Citation(s) in RCA: 113] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 12/16/2019] [Indexed: 11/09/2022]
Abstract
Coeliac disease is a complex, polygenic inflammatory enteropathy caused by exposure to dietary gluten that occurs in a subset of genetically susceptible individuals who express either the HLA-DQ8 or HLA-DQ2 haplotypes1,2. The need to develop non-dietary treatments is now widely recognized3, but no pathophysiologically relevant gluten- and HLA-dependent preclinical model exists. Furthermore, although studies in humans have led to major advances in our understanding of the pathogenesis of coeliac disease4, the respective roles of disease-predisposing HLA molecules, and of adaptive and innate immunity in the development of tissue damage, have not been directly demonstrated. Here we describe a mouse model that reproduces the overexpression of interleukin-15 (IL-15) in the gut epithelium and lamina propria that is characteristic of active coeliac disease, expresses the predisposing HLA-DQ8 molecule, and develops villous atrophy after ingestion of gluten. Overexpression of IL-15 in both the epithelium and the lamina propria is required for the development of villous atrophy, which demonstrates the location-dependent central role of IL-15 in the pathogenesis of coeliac disease. In addition, CD4+ T cells and HLA-DQ8 have a crucial role in the licensing of cytotoxic T cells to mediate intestinal epithelial cell lysis. We also demonstrate a role for the cytokine interferon-γ (IFNγ) and the enzyme transglutaminase 2 (TG2) in tissue destruction. By reflecting the complex interaction between gluten, genetics and IL-15-driven tissue inflammation, this mouse model provides the opportunity to both increase our understanding of coeliac disease, and develop new therapeutic strategies.
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Affiliation(s)
- Valérie Abadie
- Department of Microbiology, Infectiology, and Immunology, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada.
- Sainte-Justine Hospital Research Centre, University of Montreal, Montreal, Quebec, Canada.
- Department of Medicine, University of Chicago, Chicago, IL, USA.
| | - Sangman M Kim
- Department of Medicine, University of Chicago, Chicago, IL, USA
- Committee on Immunology, University of Chicago, Chicago, IL, USA
- Department of Biology, University of San Francisco, San Francisco, CA, USA
| | - Thomas Lejeune
- Department of Microbiology, Infectiology, and Immunology, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada
- Sainte-Justine Hospital Research Centre, University of Montreal, Montreal, Quebec, Canada
| | - Brad A Palanski
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Jordan D Ernest
- Department of Medicine, University of Chicago, Chicago, IL, USA
- Committee on Immunology, University of Chicago, Chicago, IL, USA
| | - Olivier Tastet
- Department of Genetics, Sainte-Justine Hospital Research Centre, University of Montreal, Montreal, Quebec, Canada
| | - Jordan Voisine
- Department of Medicine, University of Chicago, Chicago, IL, USA
- Committee on Immunology, University of Chicago, Chicago, IL, USA
| | | | - Eric V Marietta
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
- Department of Immunology, Mayo Clinic, Rochester, MN, USA
- Department of Dermatology, Mayo Clinic, Rochester, MN, USA
| | - Mohamed B F Hawash
- Department of Genetics, Sainte-Justine Hospital Research Centre, University of Montreal, Montreal, Quebec, Canada
- Department of Biochemistry, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada
| | - Cezary Ciszewski
- Department of Medicine, University of Chicago, Chicago, IL, USA
- Committee on Immunology, University of Chicago, Chicago, IL, USA
| | - Romain Bouziat
- Department of Medicine, University of Chicago, Chicago, IL, USA
- Committee on Immunology, University of Chicago, Chicago, IL, USA
| | | | - Irina Horwath
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | | | - Ian Lawrence
- Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Anne Dumaine
- Department of Genetics, Sainte-Justine Hospital Research Centre, University of Montreal, Montreal, Quebec, Canada
| | - Vania Yotova
- Department of Genetics, Sainte-Justine Hospital Research Centre, University of Montreal, Montreal, Quebec, Canada
| | - Jean-Christophe Grenier
- Department of Genetics, Sainte-Justine Hospital Research Centre, University of Montreal, Montreal, Quebec, Canada
| | - Joseph A Murray
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Chaitan Khosla
- Department of Chemistry, Stanford University, Stanford, CA, USA
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
- Stanford ChEM-H, Stanford University, Stanford, CA, USA
| | - Luis B Barreiro
- Department of Genetics, Sainte-Justine Hospital Research Centre, University of Montreal, Montreal, Quebec, Canada
- Department of Pediatrics, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada
- Department of Medicine, Section of Genetic Medicine, University of Chicago, Chicago, IL, USA
| | - Bana Jabri
- Department of Medicine, University of Chicago, Chicago, IL, USA.
- Committee on Immunology, University of Chicago, Chicago, IL, USA.
- Department of Pediatrics, Section of Gastroenterology, Hepatology and Nutrition, University of Chicago, Chicago, IL, USA.
- Department of Pathology, University of Chicago, Chicago, IL, USA.
- University of Chicago Celiac Disease Center, University of Chicago, Chicago, IL, USA.
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18
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Singh RS, Singh A, Batra G, Kaur H, Medhi B. Novel targets for drug discovery in celiac disease. Indian J Pharmacol 2019; 51:359-365. [PMID: 31831931 PMCID: PMC6892008 DOI: 10.4103/ijp.ijp_679_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 11/13/2019] [Accepted: 11/16/2019] [Indexed: 11/21/2022] Open
Abstract
Celiac disease is a lifelong, immunological disorder induced by dietary protein-gluten, in a genetically susceptible populations, resulting in different clinical manifestations, the release of antibodies, and damage to the intestinal mucosa. The only recommended therapy for the disease is to strictly follow a gluten-free diet (GFD), which is difficult to comply with. A GFD is found to be ineffective in some active Celiac disease cases. Therefore, there is an unmet need for an alternative nondietary therapeutic approach. The review focuses on the novel drug targets for Celiac disease.
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Affiliation(s)
- Rahul Soloman Singh
- Department of Pharmacology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ashutosh Singh
- Department of Pharmacology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Gitika Batra
- Department of Pharmacology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Hardeep Kaur
- Department of Pharmacology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Bikash Medhi
- Department of Pharmacology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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19
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Oxentenko AS, Rubio-Tapia A. Celiac Disease. Mayo Clin Proc 2019; 94:2556-2571. [PMID: 31806106 DOI: 10.1016/j.mayocp.2019.02.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 02/08/2019] [Accepted: 02/14/2019] [Indexed: 12/16/2022]
Abstract
Celiac disease (CD) affects approximately 1% of the general population, although most cases remain unrecognized. Because CD is a multisystem disorder with protean clinical manifestations, a high index of suspicion is needed to make an appropriate diagnosis. A diagnosis of CD is made in a patient who is genetically predisposed based on the presence of compatible clinical features, positive highly specific celiac serologic findings, duodenal biopsies that document enteropathy, and improvement with a gluten-free diet. The differential diagnoses for the clinical features and the histologic findings seen in patients with CD are numerous and need to be considered; because the management of celiac disease consists of a lifelong gluten-free diet, ensuring that the diagnosis is correctly established is of utmost importance. The aim of this review is to provide practicing clinicians with the most current information on the diagnosis and management of CD, including new developments and the approach to controversial issues.
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Affiliation(s)
- Amy S Oxentenko
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN.
| | - Alberto Rubio-Tapia
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN
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20
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Dias R, Brás NF, Pérez-Gregorio M, Fernandes I, Mateus N, Freitas V. A multi-spectroscopic study on the interaction of food polyphenols with a bioactive gluten peptide: From chemistry to biological implications. Food Chem 2019; 299:125051. [PMID: 31284245 DOI: 10.1016/j.foodchem.2019.125051] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 06/10/2019] [Accepted: 06/19/2019] [Indexed: 12/13/2022]
Abstract
This study aims to exploit the molecular and cellular mechanisms concerning the functionality of dietary polyphenols (catechin, procyanidin B3, procyanidin C2, epigallocatechin and epigallocatechin gallate) in a nutritional context to prevent Celiac Disease (CD). In that sense, the interaction between the main CD bioactive peptide (32-mer peptide) and some polyphenols was fully characterized at the intestinal level under near physiological conditions by means of different spectroscopic techniques and dynamic simulations. Accordingly, it is proposed that the primarily polyphenol-binding sites on the 32-mer peptide correspond to leucine, tyrosine and phenylalanine containing domains being this interaction entropy-driven. Although procyanidin B3 and trimer C2 had a similar low-affinity constant at 310 K, both procyanidins were able to reduce the 32-mer peptide apical-to-basolateral translocation in in vitro simulated intestinal epithelial barrier thus prospecting the occurrence of additional and still unexplored regulatory mechanisms by which dietary polyphenols might modulate the transepithelial transport of CD bioactive peptides.
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Affiliation(s)
- Ricardo Dias
- QUINOA-LAQV/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Porto, Portugal
| | - Natércia F Brás
- UCIBIO/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Porto, Portugal
| | - Maria Pérez-Gregorio
- QUINOA-LAQV/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Porto, Portugal
| | - Iva Fernandes
- QUINOA-LAQV/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Porto, Portugal
| | - Nuno Mateus
- QUINOA-LAQV/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Porto, Portugal
| | - Victor Freitas
- QUINOA-LAQV/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Porto, Portugal.
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Valitutti F, De Santis B, Trovato CM, Montuori M, Gatti S, Oliva S, Brera C, Catassi C. Assessment of Mycotoxin Exposure in Breastfeeding Mothers with Celiac Disease. Nutrients 2018; 10:E336. [PMID: 29534461 PMCID: PMC5872754 DOI: 10.3390/nu10030336] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 03/06/2018] [Accepted: 03/07/2018] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE To assess the risk of mycotoxin exposure (aflatoxin M1, ochratoxin A, and zearalenone) in celiac disease (CD) breastfeeding mothers and healthy control mothers, as well as in their offspring, by quantifying these contaminants in breast milk. STUDY DESIGN Thirty-five breastfeeding women with CD on a gluten-free diet and 30 healthy breastfeeding controls were recruited. Milk sampling was performed three times per day for three consecutive days. Mycotoxin content was investigated by an analytical method using immunoaffinity column clean-up and high-performance liquid chromatography (HPLC) with fluorometric detection. RESULTS Aflatoxin M1 (AFM1) was detected in 37% of CD group samples (mean ± SD = 0.012 ± 0.011 ng/mL; range = 0.003-0.340 ng/mL). The control group showed lower mean AFM1 concentration levels in 24% of the analyzed samples (0.009 ± 0.007 ng/mL; range = 0.003-0.067 ng/mL, ANOVA on ranks, p-value < 0.01). Ochratoxin A and zearalenone did not differ in both groups. CONCLUSION Breast milk AFM1 contamination for both groups is lower than the European safety threshold. However, the estimated exposures of infants from CD mothers and control mothers was much higher (≃15 times and ≃11 times, respectively) than the threshold set by the joint FAO/WHO Expert Committee on Food Additives (JECFA). Since incongruities exist between JECFA and the European Union standard, a novel regulatory review of the available data on this topic is desirable. Protecting babies from a neglected risk of high AFM1 exposure requires prompt regulatory and food-control policies.
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Affiliation(s)
- Francesco Valitutti
- Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, 00161 Rome, Italy.
| | - Barbara De Santis
- Laboratory for Mycotoxins, Istituto Superiore di Sanità, 00161 Rome, Italy.
| | - Chiara Maria Trovato
- Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, 00161 Rome, Italy.
| | - Monica Montuori
- Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, 00161 Rome, Italy.
| | - Simona Gatti
- Department of Pediatrics, Università Politecnica delle Marche, 60123 Ancona, Italy.
| | - Salvatore Oliva
- Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, 00161 Rome, Italy.
| | - Carlo Brera
- Laboratory for Mycotoxins, Istituto Superiore di Sanità, 00161 Rome, Italy.
| | - Carlo Catassi
- Department of Pediatrics, Università Politecnica delle Marche, 60123 Ancona, Italy.
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22
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Haridy J, Lewis D, Newnham ED. Investigational drug therapies for coeliac disease - where to from here? Expert Opin Investig Drugs 2018; 27:225-233. [PMID: 29411655 DOI: 10.1080/13543784.2018.1438407] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
INTRODUCTION Despite decades of research and a detailed knowledge of the immunopathological basis of coeliac disease (CD), adherence to a lifelong gluten-free diet (GFD) remains the single proven and available treatment. The increasing prevalence of CD combined with variable adherence to the GFD in a significant proportion of patients demands new therapeutic strategies. AREAS COVERED Trial registries, clinicaltrials.gov, pharmaceutical company website searches as well as published data from PubMed and conference proceedings were used to extract the most recent outcomes for CD therapeutics. This article aims to review the available therapies from a pathophysiological approach, and propose future directions in this interesting yet largely unfulfilled area of research. EXPERT OPINION Increasingly, the GFD is being challenged by its availability, palatability, practicality and now even efficacy in some populations. Whilst the causative antigens have been well described, it is clear that treatment based on the removal of these immunostimulatory peptides from the diet is far more complex than early experience in CD treatment implied. Despite burgeoning interest and research in experimental therapies for CD over the past twenty years, the only therapy showing promise as a true alternative to a GFD is that of the induction of tolerance via a vaccine.
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Affiliation(s)
- James Haridy
- a Department of Gastroenterology and Hepatology , Monash University, Eastern Health Clinical School , Melbourne , Australia
| | - Diana Lewis
- a Department of Gastroenterology and Hepatology , Monash University, Eastern Health Clinical School , Melbourne , Australia
| | - Evan D Newnham
- a Department of Gastroenterology and Hepatology , Monash University, Eastern Health Clinical School , Melbourne , Australia
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24
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Parzanese I, Qehajaj D, Patrinicola F, Aralica M, Chiriva-Internati M, Stifter S, Elli L, Grizzi F. Celiac disease: From pathophysiology to treatment. World J Gastrointest Pathophysiol 2017; 8:27-38. [PMID: 28573065 PMCID: PMC5437500 DOI: 10.4291/wjgp.v8.i2.27] [Citation(s) in RCA: 130] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Revised: 03/08/2017] [Accepted: 03/23/2017] [Indexed: 02/06/2023] Open
Abstract
Celiac disease, also known as "celiac sprue", is a chronic inflammatory disorder of the small intestine, produced by the ingestion of dietary gluten products in susceptible people. It is a multifactorial disease, including genetic and environmental factors. Environmental trigger is represented by gluten while the genetic predisposition has been identified in the major histocompatibility complex region. Celiac disease is not a rare disorder like previously thought, with a global prevalence around 1%. The reason of its under-recognition is mainly referable to the fact that about half of affected people do not have the classic gastrointestinal symptoms, but they present nonspecific manifestations of nutritional deficiency or have no symptoms at all. Here we review the most recent data concerning epidemiology, pathogenesis, clinical presentation, available diagnostic tests and therapeutic management of celiac disease.
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25
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Li YG, Liang HH, Bai SL, Zhou Y, Sun G, Su YR, Gao AL, Zhang DL, Li SP. Molecular Characterization and Variation of the Celiac Disease Epitope Domains among α-Gliadin Genes in Aegilops tauschii. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:3422-3429. [PMID: 28391694 DOI: 10.1021/acs.jafc.7b00338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
To explore the distribution and quantity of toxic epitopes in α-gliadins from Aegilops tauschii, a total of 133 complete α-gliadin coding sequences were obtained, including 69 pseudogenes with at least one premature stop codon and 64 genes with complete open reading frames (ORFs). Plenty of deletions and single amino acid substitutions were found in the 4 celiac disease (CD) toxic epitope domains through multiple alignments, in which the sequence of DQ2.5-glia-α2 demonstrated the most significant changes. Interestingly, 7 of the 59 α-gliadins were free of any kind of intact CD toxic epitopes, providing potential gene resources for low CD toxicity breeding of common wheat. Analysis of the neighbor-joining tree demonstrates that 2 of the totally 7 α-gliadins cluster within the homologues of Triticum (A genome), and the other 5 group with those of Aegilops Sitopsis (B genome). This result implies that the 7 α-gliadin genes may be originated from the ancestor species of Ae. tauschii, evolved by the homoploid hybrid of Triticum and Aegilops Sitopsis. The remaining 52 α-gliadins form a separate clade from other homologues of A and B genomes, suggesting a recent rapid gene expansion by gene duplication associated with the species adaptation.
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Affiliation(s)
- Yu-Ge Li
- School of Life Science, Henan University , Kaifeng, 475004, Henan, People's Republic of China
- Institute of Plant Stress Biology, Henan University , Kaifeng, 475004, People's Republic of China
| | - Hui-Hui Liang
- School of Life Science, Henan University , Kaifeng, 475004, Henan, People's Republic of China
- Institute of Plant Stress Biology, Henan University , Kaifeng, 475004, People's Republic of China
| | - Sheng-Long Bai
- Institute of Plant Stress Biology, Henan University , Kaifeng, 475004, People's Republic of China
| | - Yun Zhou
- School of Life Science, Henan University , Kaifeng, 475004, Henan, People's Republic of China
- Institute of Plant Stress Biology, Henan University , Kaifeng, 475004, People's Republic of China
| | - Guiling Sun
- School of Life Science, Henan University , Kaifeng, 475004, Henan, People's Republic of China
- Institute of Plant Stress Biology, Henan University , Kaifeng, 475004, People's Republic of China
| | - Ya-Rui Su
- School of Life Science, Henan University , Kaifeng, 475004, Henan, People's Republic of China
| | - An-Li Gao
- School of Life Science, Henan University , Kaifeng, 475004, Henan, People's Republic of China
| | - Da-Le Zhang
- School of Life Science, Henan University , Kaifeng, 475004, Henan, People's Republic of China
- Institute of Plant Stress Biology, Henan University , Kaifeng, 475004, People's Republic of China
| | - Suo-Ping Li
- School of Life Science, Henan University , Kaifeng, 475004, Henan, People's Republic of China
- Institute of Plant Stress Biology, Henan University , Kaifeng, 475004, People's Republic of China
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Kamycheva E, Goto T, Camargo CA. Celiac disease is associated with reduced bone mineral density and increased FRAX scores in the US National Health and Nutrition Examination Survey. Osteoporos Int 2017; 28:781-790. [PMID: 27714440 DOI: 10.1007/s00198-016-3791-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 09/25/2016] [Indexed: 12/17/2022]
Abstract
UNLABELLED We investigated the association between celiac disease (CD) and bone mass density (BMD) and risk of osteoporotic fractures in the general US population. In children and men ≥18 years, CD was associated with reduced BMD, and in men ≥40 years, CD was associated with increased risk of osteoporotic fractures. INTRODUCTION Celiac disease (CD) is an autoimmune condition, characterized by inflammation of the small intestine. CD has an increasing prevalence, and if unrecognized or untreated, CD can lead to complications from malabsorption and micronutrient deficiencies. We aimed to study whether CD is an independent predictor of reduced bone mineral density (BMD) and FRAX scores in the general US population. METHODS We used data from the National Health and Nutrition Examination Survey, 2009-2010 and 2013-2014. CD was defined by positive tissue transglutaminase IgA antibody test. Multivariable models of BMD and FRAX scores were adjusted for BMI, serum 25-hydroxyvitamin D, vitamin D and calcium supplements, milk intake, serum calcium, and smoking status, when available. RESULTS In children, aged 8-17 years, CD was associated with decreased Z-scores, by 0.85 for hip and 0.46 for spine (both P < 0.001). In men aged ≥ 18 years, CD was associated with 0.06 g/cm2 decrease in BMD in hip and with 0.11 g/cm2 decrease in BMD in spine (P = 0.08 and P < 0.001, respectively). In women, there were no statistically significant differences in the multiple-adjusted model. In men aged ≥ 40 years, CD predicted FRAX scores, resulting in increased scores by 2.25 % (P = 0.006) for hip fracture and by 2.43 % (P = 0.05) for major osteoporotic fracture. CD did not predict FRAX scores in women aged ≥40 years. CONCLUSION CD is independently associated with reduced BMD in children and adults aged ≥18 years and is an independent risk factor of osteoporotic fractures in men aged ≥40 years.
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Affiliation(s)
- E Kamycheva
- Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, 125 Nashua St, Suite 920, Boston, MA, 02114, USA.
- Medical Clinic, University Hospital of North Norway, Sykehusveien 38, 9038, Tromsoe, Norway.
- Endocrine Research Group, Faculty of Health Sciences, Department of Clinical Medicine, UiT The Arctic University of Norway, Hansine Hansens veg 18, 9017, Tromsoe, Norway.
| | - T Goto
- Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, 125 Nashua St, Suite 920, Boston, MA, 02114, USA
- Harvard T.H. Chan School of Public Health, 677 Huntington Avenue, Boston, MA, 02115, USA
| | - C A Camargo
- Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, 125 Nashua St, Suite 920, Boston, MA, 02114, USA
- Harvard T.H. Chan School of Public Health, 677 Huntington Avenue, Boston, MA, 02115, USA
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Escudero-Hernández C, Peña AS, Bernardo D. Immunogenetic Pathogenesis of Celiac Disease and Non-celiac Gluten Sensitivity. Curr Gastroenterol Rep 2017; 18:36. [PMID: 27216895 DOI: 10.1007/s11894-016-0512-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Celiac disease is the most common oral intolerance in Western countries. It results from an immune response towards gluten proteins from certain cereals in genetically predisposed individuals (HLA-DQ2 and/or HLA-DQ8). Its pathogenesis involves the adaptive (HLA molecules, transglutaminase 2, dendritic cells, and CD4(+) T-cells) and the innate immunity with an IL-15-mediated response elicited in the intraepithelial compartment. At present, the only treatment is a permanent strict gluten-free diet (GFD). Multidisciplinary studies have provided a deeper insight of the genetic and immunological factors and their interaction with the microbiota in the pathogenesis of the disease. Similarly, a better understanding of the composition of the toxic gluten peptides has improved the ways to detect them in food and drinks and how to monitor GFD compliance via non-invasive approaches. This review, therefore, addresses the major findings obtained in the last few years including the re-discovery of non-celiac gluten sensitivity.
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Affiliation(s)
- Celia Escudero-Hernández
- Mucosal Immunology Laboratory, IBGM, Facultad de Medicina, Dpto. Pediatría e Inmunología, University of Valladolid-Consejo Superior de Investigaciones Científicas, (4th floor) Av. Ramón y Cajal 7, 47005, Valladolid, Spain
| | - Amado Salvador Peña
- VU Medical Center Amsterdam, Laboratory of Immunogenetics, Department of Medical Microbiology and Infection Control, VU University Medical Center, De Boelelaan 1108 Room 10E65, 1081 HZ, Amsterdam, The Netherlands
| | - David Bernardo
- Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, 28006, Spain.
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Bouasla A, Wójtowicz A, Zidoune MN. Gluten-free precooked rice pasta enriched with legumes flours: Physical properties, texture, sensory attributes and microstructure. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2016.10.005] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Zanchetta MB, Longobardi V, Costa F, Longarini G, Mazure RM, Moreno ML, Vázquez H, Silveira F, Niveloni S, Smecuol E, de la Paz Temprano M, Massari F, Sugai E, González A, Mauriño EC, Bogado C, Zanchetta JR, Bai JC. Impaired Bone Microarchitecture Improves After One Year On Gluten-Free Diet: A Prospective Longitudinal HRpQCT Study in Women With Celiac Disease. J Bone Miner Res 2017; 32:135-142. [PMID: 27447366 DOI: 10.1002/jbmr.2922] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 07/18/2016] [Accepted: 07/20/2016] [Indexed: 01/06/2023]
Abstract
We have recently identified a significant deterioration of bone microarchitecture in premenopausal women with newly diagnosed celiac disease (CD) using high-resolution peripheral quantitative computed tomography (HRpQCT). The aim of this work was to assess changes in bone microarchitecture after 1 year on a gluten-free diet (GFD) in a cohort of premenopausal women. We prospectively enrolled 31 consecutive females at diagnosis of CD; 26 of them were reassessed 1 year after GFD. They all underwent HRpQCT scans of distal radius and tibia, areal BMD by DXA, and biochemical tests (bone-specific parameters and CD serology) at both time points. Secondary, we compared 1-year results with those of a control group of healthy premenopausal women of similar age and BMI in order to assess whether the microarchitectural parameters of treated CD patients had reached the values expected for their age. Compared with baseline, the trabecular compartment in the distal radius and tibia improved significantly (trabecular density, trabecular/bone volume fraction [BV/TV] [p < 0.0001], and trabecular thickness [p = 0.0004]). Trabecular number remained stable in both regions. Cortical density increased only in the tibia (p = 0.0004). Cortical thickness decreased significantly in both sites (radius: p = 0.03; tibia: p = 0.05). DXA increased in all regions (lumbar spine [LS], p = 0.01; femoral neck [FN], p = 0.009; ultradistal [UD] radius, p = 0.001). Most parameters continued to be significantly lower than those of healthy controls. This prospective HRpQCT study showed that most trabecular parameters altered at CD diagnosis improved significantly by specific treatment (GFD) and calcium and vitamin D supplementation. However, there were still significant differences with a control group of women of similar age and BMI. In the prospective follow-up of this group of patients we expect to be able to assess whether bone microarchitecture attains levels expected for their age. © 2016 American Society for Bone and Mineral Research.
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Affiliation(s)
- María Belén Zanchetta
- Instituto de Diagnóstico e Investigaciones Metabólicas (IDIM), Buenos Aires, Argentina.,Cátedra de Osteología y Metabolismo Mineral, Universidad del Salvador, Buenos Aires, Argentina
| | - Vanesa Longobardi
- Instituto de Diagnóstico e Investigaciones Metabólicas (IDIM), Buenos Aires, Argentina.,Cátedra de Osteología y Metabolismo Mineral, Universidad del Salvador, Buenos Aires, Argentina
| | - Florencia Costa
- Sección Intestino Delgado, Departamento de Medicina, Hospital de Gastroenterología "Dr. C. Bonorino Udaondo,", Buenos Aires, Argentina
| | - Gabriela Longarini
- Sección Intestino Delgado, Departamento de Medicina, Hospital de Gastroenterología "Dr. C. Bonorino Udaondo,", Buenos Aires, Argentina
| | - Roberto Martín Mazure
- Sección Intestino Delgado, Departamento de Medicina, Hospital de Gastroenterología "Dr. C. Bonorino Udaondo,", Buenos Aires, Argentina
| | - María Laura Moreno
- Sección Intestino Delgado, Departamento de Medicina, Hospital de Gastroenterología "Dr. C. Bonorino Udaondo,", Buenos Aires, Argentina
| | - Horacio Vázquez
- Sección Intestino Delgado, Departamento de Medicina, Hospital de Gastroenterología "Dr. C. Bonorino Udaondo,", Buenos Aires, Argentina
| | - Fernando Silveira
- Instituto de Diagnóstico e Investigaciones Metabólicas (IDIM), Buenos Aires, Argentina
| | - Sonia Niveloni
- Sección Intestino Delgado, Departamento de Medicina, Hospital de Gastroenterología "Dr. C. Bonorino Udaondo,", Buenos Aires, Argentina
| | - Edgardo Smecuol
- Sección Intestino Delgado, Departamento de Medicina, Hospital de Gastroenterología "Dr. C. Bonorino Udaondo,", Buenos Aires, Argentina
| | - María de la Paz Temprano
- Sección Intestino Delgado, Departamento de Medicina, Hospital de Gastroenterología "Dr. C. Bonorino Udaondo,", Buenos Aires, Argentina
| | - Fabio Massari
- Instituto de Diagnóstico e Investigaciones Metabólicas (IDIM), Buenos Aires, Argentina.,Cátedra de Osteología y Metabolismo Mineral, Universidad del Salvador, Buenos Aires, Argentina
| | - Emilia Sugai
- Sección Intestino Delgado, Departamento de Medicina, Hospital de Gastroenterología "Dr. C. Bonorino Udaondo,", Buenos Aires, Argentina
| | - Andrea González
- Sección Intestino Delgado, Departamento de Medicina, Hospital de Gastroenterología "Dr. C. Bonorino Udaondo,", Buenos Aires, Argentina
| | - Eduardo César Mauriño
- Sección Intestino Delgado, Departamento de Medicina, Hospital de Gastroenterología "Dr. C. Bonorino Udaondo,", Buenos Aires, Argentina
| | - Cesar Bogado
- Instituto de Diagnóstico e Investigaciones Metabólicas (IDIM), Buenos Aires, Argentina.,Cátedra de Osteología y Metabolismo Mineral, Universidad del Salvador, Buenos Aires, Argentina
| | - José R Zanchetta
- Instituto de Diagnóstico e Investigaciones Metabólicas (IDIM), Buenos Aires, Argentina.,Cátedra de Osteología y Metabolismo Mineral, Universidad del Salvador, Buenos Aires, Argentina
| | - Julio César Bai
- Sección Intestino Delgado, Departamento de Medicina, Hospital de Gastroenterología "Dr. C. Bonorino Udaondo,", Buenos Aires, Argentina.,Cátedra de Gastroenterología Facultad de Medicina, Universidad del Salvador, Buenos Aires, Argentina
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Samasca G, Sur G, Lupan I, Makovicky P, Freeman HJ. Challenges in the celiac disease diagnosis; Prague consensus. GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH 2017; 10:1-2. [PMID: 28331558 PMCID: PMC5346817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gabriel Samasca
- Department of Immunology, , Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Genel Sur
- Department of Pediatrics II, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Iulia Lupan
- Babes-Bolyai University, Department of Molecular Biology and Biotechnology, ClujNapoca, Romania
| | - Peter Makovicky
- Czech Centre for Phenogenomics, Institute of Molecular Genetics, Department of Transgenic Models of Disease, ASCR, v.v.i., BIOCEV, Prumyslova 595, 252 42 Vestec, Czech Republic
| | - Hugh James Freeman
- Department of Gastroenterology, University of British Columbia, Vancouver, British Columbia, Canada
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Scherf KA, Wieser H, Koehler P. Novel approaches for enzymatic gluten degradation to create high-quality gluten-free products. Food Res Int 2016; 110:62-72. [PMID: 30029707 DOI: 10.1016/j.foodres.2016.11.021] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 11/04/2016] [Accepted: 11/15/2016] [Indexed: 02/08/2023]
Abstract
Celiac disease (CD), a chronic enteropathy of the small intestine caused by ingestion of gluten, is one of the most prevalent food hypersensitivities worldwide. The essential treatment is a strict lifelong gluten-free diet based on the avoidance of gluten-containing products from wheat, rye, barley and, in rare cases, oats. Products made from naturally gluten-free raw materials often have inferior nutritional, textural and sensory properties compared to the corresponding gluten-containing products. Therefore, the incorporation of wheat, rye and barley flours after efficient removal of the harmful component gluten into gluten-free products would be beneficial. Gluten modification resulting in decreased CD-immunoreactivity may be achieved via the formation of crosslinks using microbial transglutaminase. To effectively eliminate CD-immunoreactivity, plant, fungal, bacterial, animal or engineered peptidases are capable of degrading gluten proteins and peptides into harmless fragments. The application of peptidases from germinated cereal grains, fungal peptidases and/or lactic acid bacteria during food processing yielded high-quality sourdough wheat breads, pasta, wheat starch and bran, rye products and beer, all with gluten contents below the Codex Alimentarius threshold of 20mg/kg for gluten-free products. As with all gluten-free products, the legislative compliance of such treated materials needs to be monitored closely. Provided that all safety requirements are met, gluten-containing raw materials treated in an adequate way to remove CD-active gluten fragments may be used together with naturally gluten-free ingredients to create an extended choice of high-quality gluten-free products.
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Affiliation(s)
- Katharina Anne Scherf
- Deutsche Forschungsanstalt für Lebensmittelchemie, Leibniz Institut, Lise-Meitner-Straße 34, D-85354 Freising, Germany.
| | - Herbert Wieser
- Deutsche Forschungsanstalt für Lebensmittelchemie, Leibniz Institut, Lise-Meitner-Straße 34, D-85354 Freising, Germany
| | - Peter Koehler
- Deutsche Forschungsanstalt für Lebensmittelchemie, Leibniz Institut, Lise-Meitner-Straße 34, D-85354 Freising, Germany
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Agarwal S, Kovilam O, Zach TL, Agrawal DK. Immunopathogenesis and therapeutic approaches in pediatric celiac disease. Expert Rev Clin Immunol 2016; 12:857-69. [PMID: 26999328 PMCID: PMC4975578 DOI: 10.1586/1744666x.2016.1168294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 03/16/2016] [Indexed: 01/06/2023]
Abstract
Celiac Disease is an autoimmune enteropathy with increasing incidence worldwide in both adults and children. It occurs as an inflammatory condition with destruction of the normal architecture of villi on consumption of gluten and related protein products found in wheat, barley and rye. However, the exact pathogenesis is not yet fully understood. A gluten-free diet remains the main modality of therapy to date. While some patients continue to have symptoms even on a gluten-free diet, adherence to this diet is also difficult, especially for the children. Hence, there is continued interest in novel methods of therapy and the current research focus is on the promising novel non-dietary modalities of treatment. Here, we critically reviewed the existing literature regarding the pathogenesis of celiac disease in children including the role of in-utero exposure leading to neonatal and infant sensitization and its application for the development of new therapeutic approaches for these patients.
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Affiliation(s)
- Shreya Agarwal
- Department of Clinical & Translational Science, Creighton University School of Medicine, Omaha, NE, USA
| | - Oormila Kovilam
- Department of Obstetrics and Gynecology, Creighton University School of Medicine, Omaha, NE, USA
| | - Terence L. Zach
- Department of Pediatrics, Creighton University School of Medicine, Omaha, NE, USA
| | - Devendra K. Agrawal
- Department of Clinical & Translational Science, Creighton University School of Medicine, Omaha, NE, USA
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Scherf K, Uhlig S, Simon K, Frost K, Koehler P, Weiss T, Lacorn M. Validation of a qualitative R5 dip-stick for gluten detection with a new mathematical-statistical approach. QUALITY ASSURANCE AND SAFETY OF CROPS & FOODS 2016. [DOI: 10.3920/qas2015.0818] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- K.A. Scherf
- Deutsche Forschungsanstalt für Lebensmittelchemie, Leibniz Institut, Lise-Meitner-Straβe 34, 85354 Freising, Germany
| | - S. Uhlig
- QuoData GmbH, Obere Hauptstraβe 36, 85354 Freising, Germany
| | - K. Simon
- QuoData GmbH, Obere Hauptstraβe 36, 85354 Freising, Germany
| | - K. Frost
- QuoData GmbH, Prellerstraβe 14, 01309 Dresden, Germany
| | - P. Koehler
- Deutsche Forschungsanstalt für Lebensmittelchemie, Leibniz Institut, Lise-Meitner-Straβe 34, 85354 Freising, Germany
| | - T. Weiss
- R-Biopharm AG, An der neuen Bergstraβe 17, 64297 Darmstadt, Germany
| | - M. Lacorn
- R-Biopharm AG, An der neuen Bergstraβe 17, 64297 Darmstadt, Germany
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Abstract
More than 50% of untreated patients with celiac disease (CD) have bone loss detected by bone densitometry (dual-energy X-ray absorptiometry:DXA). Moreover, patients with CD are more likely to have osteoporosis and fragility fractures, especially of the distal radius. Although still controversial, we recommend DXA screening in all celiac disease patients, particularly in those with symptomatic CD at diagnosis and in those who present risk factors for fracture such as older age, menopausal status, previous fracture history, and familial hip fracture history. Bone microarchitecture, especially the trabecular network, may be deteriorated, explaining the higher fracture risk in these patients. Adequate calcium and vitamin D supplementation are also recommended to optimize bone recovery, especially during the first years of gluten free diet (GFD). If higher fracture risk persists after 1 or 2 years of GFD, specific osteoactive treatment may be necessary to improve bone health.
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Affiliation(s)
- María Belén Zanchetta
- IDIM, Instituto de Diagnóstico e Investigaciones Metabólicas, Libertad 836, (1012), Buenos Aires, Argentina.
- Cátedra de Osteología y Metabolismo Mineral, Universidad del Salvador, Buenos Aires, Argentina.
| | - Vanesa Longobardi
- IDIM, Instituto de Diagnóstico e Investigaciones Metabólicas, Libertad 836, (1012), Buenos Aires, Argentina
- Cátedra de Osteología y Metabolismo Mineral, Universidad del Salvador, Buenos Aires, Argentina
| | - Julio César Bai
- Sección Intestino Delgado, Departamento de Medicina, Hospital de Gastroenterología ¨Dr. C. Bonorino Udaondo¨ and Cátedra de Gastroenterología Facultad de Medicina, Universidad del Salvador, Buenos Aires, Argentina
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Implementation of the agmatine-controlled expression system for inducible gene expression in Lactococcus lactis. Microb Cell Fact 2015; 14:208. [PMID: 26715338 PMCID: PMC4696319 DOI: 10.1186/s12934-015-0399-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 12/16/2015] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Lactococcus lactis has been safely consumed in fermented foods for millennia. This Gram-positive bacterium has now become of industrial importance as an expression host for the overproduction of lipopolysaccharide-free recombinant proteins used as food ingredients, therapeutic proteins and biotechnological enzymes. RESULTS This paper reports an agmatine-controlled expression (ACE) system for L. lactis, comprising the lactococcal agmatine-sensor/transcriptional activator AguR and its target promoter P(aguB). The usefulness and efficiency of this system was checked via the reporter gene gfp and by producing PEP (Myxococcus xanthus prolyl-endopeptidase), an enzyme of biomedical interest able to degrade the immunotoxic peptides produced during the gastrointestinal breakdown of gluten. CONCLUSION The ACE system developed in this work was suitable for the efficient expression of the functional recombinant proteins GFP and PEP. The expression system was tightly regulated by the agmatine concentration and allowed high protein production without leakiness.
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