1
|
Focused B cell response to recurring gluten motif with implications for epitope spreading in celiac disease. Cell Rep 2022; 41:111541. [DOI: 10.1016/j.celrep.2022.111541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 09/16/2022] [Accepted: 09/29/2022] [Indexed: 11/19/2022] Open
|
2
|
Sharma N, Bhatia S, Chunduri V, Kaur S, Sharma S, Kapoor P, Kumari A, Garg M. Pathogenesis of Celiac Disease and Other Gluten Related Disorders in Wheat and Strategies for Mitigating Them. Front Nutr 2020; 7:6. [PMID: 32118025 PMCID: PMC7020197 DOI: 10.3389/fnut.2020.00006] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 01/20/2020] [Indexed: 12/12/2022] Open
Abstract
Wheat is a major cereal crop providing energy and nutrients to the billions of people around the world. Gluten is a structural protein in wheat, that is necessary for its dough making properties, but it is responsible for imparting certain intolerances among some individuals, which are part of this review. Most important among these intolerances is celiac disease, that is gluten triggered T-cell mediated autoimmune enteropathy and results in villous atrophy, inflammation and damage to intestinal lining in genetically liable individuals containing human leukocyte antigen DQ2/DQ8 molecules on antigen presenting cells. Celiac disease occurs due to presence of celiac disease eliciting epitopes in gluten, particularly highly immunogenic alpha-gliadins. Another gluten related disorder is non-celiac gluten-sensitivity in which innate immune-response occurs in patients along with gastrointestinal and non-gastrointestinal symptoms, that disappear upon removal of gluten from the diet. In wheat allergy, either IgE or non-IgE mediated immune response occurs in individuals after inhalation or ingestion of wheat. Following a life-long gluten-free diet by celiac disease and non-celiac gluten-sensitivity patients is very challenging as none of wheat cultivar or related species stands safe for consumption. Hence, different molecular biology, genetic engineering, breeding, microbial, enzymatic, and chemical strategies have been worked upon to reduce the celiac disease epitopes and the gluten content in wheat. Currently, only 8.4% of total population is affected by wheat-related issues, while rest of population remains safe and should not remove wheat from the diet, based on false media coverage.
Collapse
Affiliation(s)
- Natasha Sharma
- Agri-Food Biotechnology Laboratory, National Agri-Food Biotechnology Institute, Mohali, India
| | - Simran Bhatia
- Agri-Food Biotechnology Laboratory, National Agri-Food Biotechnology Institute, Mohali, India
| | - Venkatesh Chunduri
- Agri-Food Biotechnology Laboratory, National Agri-Food Biotechnology Institute, Mohali, India
| | - Satveer Kaur
- Agri-Food Biotechnology Laboratory, National Agri-Food Biotechnology Institute, Mohali, India
| | - Saloni Sharma
- Agri-Food Biotechnology Laboratory, National Agri-Food Biotechnology Institute, Mohali, India
| | - Payal Kapoor
- Agri-Food Biotechnology Laboratory, National Agri-Food Biotechnology Institute, Mohali, India
| | - Anita Kumari
- Agri-Food Biotechnology Laboratory, National Agri-Food Biotechnology Institute, Mohali, India
| | - Monika Garg
- Agri-Food Biotechnology Laboratory, National Agri-Food Biotechnology Institute, Mohali, India
| |
Collapse
|
3
|
Mamone G, Iacomino G. Comparison of the in vitro toxicity of ancient Triticum monococcum varieties ID331 and Monlis. Int J Food Sci Nutr 2018; 69:954-962. [DOI: 10.1080/09637486.2018.1444019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
|
4
|
Abstract
A number of studies have suggested that ancient wheats have health benefits compared with modern bread wheat. However, the mechanisms are unclear and limited numbers of genotypes have been studied, with a particular focus on Kamut® (Khorasan wheat). This is important because published analyses have shown wide variation in composition between genotypes, with further effects of growth conditions. The present article therefore critically reviews published comparisons of the health benefits of ancient and modern wheats, in relation to the selection and growth of the lines, including dietary interventions and comparisons of adverse effects (allergy, intolerance, sensitivity). It is concluded that further studies are urgently required, particularly from a wider range of research groups, but also on a wider range of genotypes of ancient and modern wheat species. Furthermore, although most published studies have made efforts to ensure the comparability of material in terms of growth conditions and processing, it is essential that these are standardised in future studies and this should perhaps be a condition of publication. Critically appraises the health benefits of ancient wheats in relationship to grain composition. Includes human intervention trials and in vitro studies. Included metabolic and adverse effects. Makes recommendations for future work.
Collapse
Affiliation(s)
- Peter R Shewry
- Department of Plant Science, Rothamsted Research, Harpenden, Hertfordshire, AL5 2JQ, UK.,School of Agriculture, Policy and Development, University of Reading, Earley Gate, Reading RG6 6AR, UK
| |
Collapse
|
5
|
Iacomino G, Di Stasio L, Fierro O, Picariello G, Venezia A, Gazza L, Ferranti P, Mamone G. Protective effects of ID331 Triticum monococcum gliadin on in vitro models of the intestinal epithelium. Food Chem 2016; 212:537-42. [DOI: 10.1016/j.foodchem.2016.06.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 05/16/2016] [Accepted: 06/06/2016] [Indexed: 12/16/2022]
|
6
|
Genetic and environmental factors affecting pathogenicity of wheat as related to celiac disease. J Cereal Sci 2014. [DOI: 10.1016/j.jcs.2013.10.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
7
|
|
8
|
Giordani L, Del Pinto T, Vincentini O, Felli C, Silano M, Viora M. Two wheat decapeptides prevent gliadin-dependent maturation of human dendritic cells. Exp Cell Res 2013; 321:248-54. [PMID: 24262078 DOI: 10.1016/j.yexcr.2013.11.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 11/07/2013] [Accepted: 11/11/2013] [Indexed: 11/17/2022]
Abstract
Celiac disease (CD) is a small intestinal enteropathy, triggered in susceptible individuals by the ingestion of dietary gluten. Dendritic cells (DC) are instrumental in the generation and regulation of immune responses and oversee intestinal immune homeostasis promoting and maintaining oral tolerance to food antigens. The aim of this study was to monitor the effect of peptic-tryptic digest of gliadin (PT-gliadin) on the maturation of human monocyte-derived DC and the impact of pDAV and pRPQ decapeptides in the modulation of PT-gliadin-induced phenotypic and functional DC maturation. Immature DC (iDC) were challenged in vitro with PT-gliadin. In some experiments iDC were pre-treated with pDAV or pRPQ and after 2h PT-gliadin was added to the cultures. We found that PT-gliadin up-regulates the expression of the maturation markers HLA-DR, CD83, CD80 and CD86. The functional consequence of PT-gliadin treatment of iDC is a significant increase in IL-12, TNF-alpha production as well as in their T cell stimulatory capacity. On the contrary, the digest of zein had no effect on DC maturation. Interestingly, we found that pre-treatment of iDC with pDAV or pRPQ decapeptides significantly prevents the functional maturation of DC induced by PT-gliadin. On the other hand, pDAV and pRPQ did not revert the PT-gliadin-induced phenotypic maturation of DC. Here we report, for the first time, that naturally occurring peptides are able to prevent the gliadin-dependent DC maturation. This finding could have implication for CD, raising the perspective of a potential therapeutic strategy alternative to a gluten free diet.
Collapse
Affiliation(s)
- Luciana Giordani
- Department of Therapeutic Research and Medicines Evaluation, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy
| | - Tamara Del Pinto
- Department of Therapeutic Research and Medicines Evaluation, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy
| | - Olimpia Vincentini
- Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy
| | - Cristina Felli
- Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy
| | - Marco Silano
- Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy
| | - Marina Viora
- Department of Therapeutic Research and Medicines Evaluation, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy.
| |
Collapse
|
9
|
Capozzi A, Vincentini O, Gizzi P, Porzia A, Longo A, Felli C, Mattei V, Mainiero F, Silano M, Sorice M, Misasi R. Modulatory Effect of Gliadin Peptide 10-mer on Epithelial Intestinal CACO-2 Cell Inflammatory Response. PLoS One 2013; 8:e66561. [PMID: 23823806 PMCID: PMC3688933 DOI: 10.1371/journal.pone.0066561] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Accepted: 05/08/2013] [Indexed: 02/07/2023] Open
Abstract
Celiac Disease (CD) is a chronic inflammatory enteropathy, triggered in genetically susceptible individuals by dietary gluten. Gluten is able to elicit proliferation of specific T cells and secretion of inflammatory cytokines in the small intestine. In this study we investigated the possibility that p10-mer, a decapeptide from durum wheat (QQPQDAVQPF), which was previously shown to prevent the activation of celiac peripheral lymphocytes, may exert an inhibitory effect on peptic-tryptic digested gliadin (PT-Gly)-stimulated intestinal carcinoma CACO-2 cells. In these cells, incubated with PT-Gly or p31-43 α-gliadin derived peptide in the presence or in the absence of p10-mer, IRAK1 activation and NF-kB, ERK1/2 and p38 MAPK phosphorylation were measured by immunoblotting, Cyclooxigenase 2 (COX-2) activity by PGE-2 release assay, and production of cytokines in the cell supernatants by ELISA. Our results showed that pre-treatment of CACO-2 cells with p10-mer significantly inhibited IRAK1 activation and NF-kB, ERK1/2 and p38 MAPK phosphorylation, as well as COX-2 activity (i.e. PGE-2 release) and production of the IL-6 and IL-8 pro-inflammatory cytokines, induced by gliadin peptides. These findings demonstrate the inhibitory effect of the p10-mer peptide on inflammatory response in CACO-2 cells. The results of the present study show that this p10-mer peptide can modulate "in vitro" the inflammatory response induced by gliadin peptides, allowing to move towards new therapeutic strategies. Turning off the inflammatory response, may in fact represent a key target in the immunotherapy of celiac disease.
Collapse
Affiliation(s)
- Antonella Capozzi
- Department of Experimental Medicine, Sapienza University, Rome, Italy
| | - Olimpia Vincentini
- Unit of Human Nutrition and Health, Istituto Superiore di Sanità, Rome, Italy
| | - Pietro Gizzi
- Department of Experimental Medicine, Sapienza University, Rome, Italy
| | - Alessandra Porzia
- Department of Experimental Medicine, Sapienza University, Rome, Italy
| | - Agostina Longo
- Department of Experimental Medicine, Sapienza University, Rome, Italy
| | - Cristina Felli
- Unit of Human Nutrition and Health, Istituto Superiore di Sanità, Rome, Italy
| | - Vincenzo Mattei
- Experimental Medicine and Environmental Pathology Laboratory, “Sapienza” University, Rieti, Italy
| | - Fabrizio Mainiero
- Department of Experimental Medicine, Sapienza University, Rome, Italy
| | - Marco Silano
- Unit of Human Nutrition and Health, Istituto Superiore di Sanità, Rome, Italy
| | - Maurizio Sorice
- Department of Experimental Medicine, Sapienza University, Rome, Italy
| | - Roberta Misasi
- Department of Experimental Medicine, Sapienza University, Rome, Italy
- * E-mail:
| |
Collapse
|