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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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Ye J, Yang P, Zhou J, Du G, Liu S. Efficient Production of a Thermostable Mutant of Transglutaminase by Streptomyces mobaraensis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:4207-4216. [PMID: 38354706 DOI: 10.1021/acs.jafc.3c07621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
The transglutaminase (TGase) from Streptomyces mobaraensis is widely used to improve the texture of protein-based foods. However, wild-type TGase is not heat-resistant, which is unfavorable for its application. In this study, we successfully constructed a S. mobaraensis strain that can efficiently produce TGm2, a thermostable mutant of S. mobaraensis TGase. First, S. mobaraensis DSM40587 was subjected to atmospheric room temperature plasma mutagenesis, generating mutant smY2022 with a 12.2-fold increase in TGase activity. Then, based on the double-crossover recombination, we replaced the coding sequence of the TGase with that of TGm2 in smY2022, obtaining the strain smY2022-TGm2. The extracellular TGase activity of smY2022-TGm2 reached 61.7 U/mL, 147% higher than that of smY2022. Finally, the catalytic properties of TGm2 were characterized. The half-life time at 60 °C and specific activity of TGm2 reached 64 min and 71.15 U/mg, 35.6- and 2.9-fold higher than those of the wild-type TGase, respectively. As indicated by SDS-PAGE analysis, TGm2 exhibited demonstrably better protein cross-linking ability than the wild-type TGase at 70 °C, although both enzymes shared a similar ability at 40 °C. With improved enzyme production and thermal stability, smY2022-TGm2 could be a competitive strain for the industrial production of transglutaminase.
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Affiliation(s)
- Jiacai Ye
- Engineering Research Center of Ministry of Education on Food Synthetic Biorheology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Penghui Yang
- Engineering Research Center of Ministry of Education on Food Synthetic Biorheology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Jingwen Zhou
- Engineering Research Center of Ministry of Education on Food Synthetic Biorheology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Jiangsu Province Engineering Research Center of Food Synthetic Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Guocheng Du
- Engineering Research Center of Ministry of Education on Food Synthetic Biorheology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Song Liu
- Engineering Research Center of Ministry of Education on Food Synthetic Biorheology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Jiangsu Province Engineering Research Center of Food Synthetic Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
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Hamed MB, Busche T, Simoens K, Carpentier S, Kormanec J, Van Mellaert L, Anné J, Kalinowski J, Bernaerts K, Karamanou S, Economou A. Enhanced protein secretion in reduced genome strains of Streptomyces lividans. Microb Cell Fact 2024; 23:13. [PMID: 38183102 PMCID: PMC10768272 DOI: 10.1186/s12934-023-02269-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 12/10/2023] [Indexed: 01/07/2024] Open
Abstract
BACKGROUND S. lividans TK24 is a popular host for the production of small molecules and the secretion of heterologous protein. Within its large genome, twenty-nine non-essential clusters direct the biosynthesis of secondary metabolites. We had previously constructed ten chassis strains, carrying deletions in various combinations of specialized metabolites biosynthetic clusters, such as those of the blue actinorhodin (act), the calcium-dependent antibiotic (cda), the undecylprodigiosin (red), the coelimycin A (cpk) and the melanin (mel) clusters, as well as the genes hrdD, encoding a non-essential sigma factor, and matAB, a locus affecting mycelial aggregation. Genome reduction was aimed at reducing carbon flow toward specialized metabolite biosynthesis to optimize the production of secreted heterologous protein. RESULTS Two of these S. lividans TK24 derived chassis strains showed ~ 15% reduction in biomass yield, 2-fold increase of their total native secretome mass yield and enhanced abundance of several secreted proteins compared to the parental strain. RNAseq and proteomic analysis of the secretome suggested that genome reduction led to cell wall and oxidative stresses and was accompanied by the up-regulation of secretory chaperones and of secDF, a Sec-pathway component. Interestingly, the amount of the secreted heterologous proteins mRFP and mTNFα, by one of these strains, was 12 and 70% higher, respectively, than that secreted by the parental strain. CONCLUSION The current study described a strategy to construct chassis strains with enhanced secretory abilities and proposed a model linking the deletion of specialized metabolite biosynthetic clusters to improved production of secreted heterologous proteins.
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Affiliation(s)
- Mohamed Belal Hamed
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Molecular Bacteriology, KU Leuven, Herestraat 49, Leuven, B-3000, Belgium
- Molecular Biology Depart, National Research Centre, Dokii, Cairo, Egypt
- Department of Neurosciences, Leuven Research Institute for Neuroscience and Disease (LIND), KU Leuven, VIB-KU Leuven Center for Brain & Disease Research, Leuven, Belgium
| | - Tobias Busche
- Center for Biotechnology (CeBiTec), Bielefeld University, Bielefeld, Germany
| | - Kenneth Simoens
- Department of Chemical Engineering, Chemical and Biochemical Reactor Engineering and Safety (CREaS), KU Leuven, Leuven, B-3001, Belgium
| | - Sebastien Carpentier
- SYBIOMA, KU Leuven facility for Systems Biology Based Mass Spectrometry, Leuven, B-3000, Belgium
| | - Jan Kormanec
- Institute of Molecular Biology, Slovak Academy of Sciences, Dubravska cesta 21, Bratislava, 84551, Slovakia
| | - Lieve Van Mellaert
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Molecular Bacteriology, KU Leuven, Herestraat 49, Leuven, B-3000, Belgium
| | - Jozef Anné
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Molecular Bacteriology, KU Leuven, Herestraat 49, Leuven, B-3000, Belgium
| | - Joern Kalinowski
- Center for Biotechnology (CeBiTec), Bielefeld University, Bielefeld, Germany
| | - Kristel Bernaerts
- Department of Chemical Engineering, Chemical and Biochemical Reactor Engineering and Safety (CREaS), KU Leuven, Leuven, B-3001, Belgium
| | - Spyridoula Karamanou
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Molecular Bacteriology, KU Leuven, Herestraat 49, Leuven, B-3000, Belgium.
| | - Anastassios Economou
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Molecular Bacteriology, KU Leuven, Herestraat 49, Leuven, B-3000, Belgium
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Mousavi Maleki MS, Ebrahimi Kiasari R, Seyed Mousavi SJ, Hashemi-Moghaddam H, Shabani AA, Madanchi H, Sardari S. Bromelain-loaded nanocomposites decrease inflammatory and cytotoxicity effects of gliadin on Caco-2 cells and peripheral blood mononuclear cells of celiac patients. Sci Rep 2023; 13:21180. [PMID: 38040898 PMCID: PMC10692183 DOI: 10.1038/s41598-023-48460-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 11/27/2023] [Indexed: 12/03/2023] Open
Abstract
Enzyme therapy can be an appropriate treatment option for celiac disease (CeD). Here, we developed Bromelain-Loaded Nanocomposites (BLNCs) to improve the stability and retention of bromelain enzyme activity. After the characterization of BLNCs, the cytotoxicity of BLNCs was determined on the Caco-2 cell line. The effect of BLNCs on gliadin degradation and the production of pro-inflammatory cytokines and anti-inflammatory molecules in peripheral blood mononuclear cells (PBMCs) obtained from celiac patients were assessed. Furthermore, the expression of CXCR3 and CCR5 genes was measured in CaCo-2 cells treated with gliadin, gliadin-digested with BLNCs, and bromelain. Our study demonstrated that the Bromelain entrapment efficiency in these nanoparticles was acceptable, and BLNCs have no toxic effect on cells. SDS-PAGE confirmed the digestion effect of bromelain released from nanocomposites. When Caco-2 cells were treated with gliadin digested by free bromelain and BLNCs, the expression of CXCR3 and CCR5 genes was significantly decreased. PBMCs of celiac patients treated with Bromelain and BLNCs decreased inflammatory cytokines (IL-1β, IL-6, TNF-α, and IFN-γ) production compared to untreated PBMCs. This treatment also increased IL-10 and CTLA-4 in PBMCs of CeD patients. According to the promising results of this study, we can hope for the therapeutic potential of BLNCs for CeD.
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Affiliation(s)
- Masoumeh Sadat Mousavi Maleki
- Department of Biotechnology, School of Medicine, Semnan University of Medical Sciences, Semnan, 35131-38111, Iran
- Gene Therapy and Regenerative Medicine Research Center, Hope Generation Foundation, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Ramin Ebrahimi Kiasari
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 13198, Iran
| | - Seyed Javad Seyed Mousavi
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 13198, Iran
| | | | - Ali Akbar Shabani
- Department of Biotechnology, School of Medicine, Semnan University of Medical Sciences, Semnan, 35131-38111, Iran
| | - Hamid Madanchi
- Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan, Iran.
- Department of Biotechnology, School of Medicine, Semnan University of Medical Sciences, Semnan, 35131-38111, Iran.
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 13198, Iran.
| | - Soroush Sardari
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 13198, Iran.
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Mousavi Maleki MS, Aghamirza Moghim Ali Abadi H, Vaziri B, Shabani AA, Ghavami G, Madanchi H, Sardari S. Bromelain and ficin proteolytic effects on gliadin cytotoxicity and expression of genes involved in cell-tight junctions in Caco-2 cells. Amino Acids 2023; 55:1601-1619. [PMID: 37803248 DOI: 10.1007/s00726-023-03333-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 09/11/2023] [Indexed: 10/08/2023]
Abstract
Enzyme therapy for celiac disease (CeD), which digests gliadin into non-immunogenic and non-toxic peptides, can be an appropriate treatment option for CeD. Here, we have investigated the effectiveness of bromelain and ficin on gliadin digestion using in vitro, such as SDS-PAGE, HPLC, and circular dichroism (CD). Furthermore, the cytotoxicity of gliadin and 19-mer peptide before and after digestion with these enzymes was evaluated using the MTT assay in the Caco-2 cell line. Finally, we examined the effect of these treatments along with Larazotide Acetate on the expression of genes involved in cell-tight junctions, such as Occludin, Claudin 3, tight junction protein-1, and Zonulin in the Caco-2 cell line. Our study demonstrated bromelain and ficin digestion effects on the commercial and wheat-extracted gliadin by SDS-PAGE, HPLC, and CD. Also, the cytotoxicity results on Caco-2 showed that toxicity of the gliadin and synthetic 19-mer peptide was decreased by adding bromelain and ficin. Furthermore, the proteolytic effects of bromelain and ficin on gliadin indicated the expression of genes involved in cell-tight junctions was improved. This study confirms that bromelain and ficin mixture could be effective in improving the symptoms of CeD.
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Affiliation(s)
- Masoumeh Sadat Mousavi Maleki
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
- Student Research Committee, Semnan University of Medical Sciences, Semnan, Iran
| | | | - Behrooz Vaziri
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Ali Akbar Shabani
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Ghazaleh Ghavami
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, 13198, Tehran, Iran
| | - Hamid Madanchi
- Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan, Iran.
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran.
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, 13198, Tehran, Iran.
| | - Soroush Sardari
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, 13198, Tehran, Iran.
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Xiao B, Zhang C, Zhou J, Wang S, Meng H, Wu M, Zheng Y, Yu R. Design of SC PEP with enhanced stability against pepsin digestion and increased activity by machine learning and structural parameters modeling. Int J Biol Macromol 2023; 250:125933. [PMID: 37482154 DOI: 10.1016/j.ijbiomac.2023.125933] [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: 01/09/2023] [Revised: 06/20/2023] [Accepted: 07/20/2023] [Indexed: 07/25/2023]
Abstract
Prolyl endopeptidases from Sphingomonas capsulata (SC PEP) has attracted much attention as promising oral therapy candidate for celiac sprue, however, its low stability in the gastric environment leads to unsatisfactory clinical results. Therefore, improving its stability against pepsin digestion at low pH is crucial for clinical applications, but challenging. In this study, machine learning and physical parameter model were combined to design SC PEP mutants. After iterations, 20 mutants had higher hydrolysis activity in stomach environment, which was up to 14.1-fold compared with wild-type SC PEP. Mutant M24 involving stable and active mutations and pegylated M24 (M24-PEG) had higher activity of hydrolyzing immunogen in bread than wild-type SC PEP in vitro and in vivo, and residual immunogens in simulated gastric environment were only 1/8 and 1/10 of that in the wild-type SC PEP group. The total residual immunogens in the gastrointestinal tract of mice in the M24 and M24-PEG groups were <20 ppm, reaching the standard of non-toxic food. Our results indicate that the combination of M24 (or M24-PEG) with EP-B2 may be a promising candidate for celiac disease, and the strategies developed in this study provide a paradigm for the design of SC PEP stability mutants.
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Affiliation(s)
- Bin Xiao
- Department of Biopharmaceutics, West China School of Pharmacy, Sichuan University, Chengdu 610041, PR China; Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy Sichuan University, Chengdu 610041, PR China
| | - Chun Zhang
- Department of Biopharmaceutics, West China School of Pharmacy, Sichuan University, Chengdu 610041, PR China; Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy Sichuan University, Chengdu 610041, PR China
| | - Junxiu Zhou
- Department of Biopharmaceutics, West China School of Pharmacy, Sichuan University, Chengdu 610041, PR China; Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy Sichuan University, Chengdu 610041, PR China
| | - Sa Wang
- Department of Biopharmaceutics, West China School of Pharmacy, Sichuan University, Chengdu 610041, PR China; Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy Sichuan University, Chengdu 610041, PR China
| | - Huan Meng
- Department of Biopharmaceutics, West China School of Pharmacy, Sichuan University, Chengdu 610041, PR China; Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy Sichuan University, Chengdu 610041, PR China
| | - Miao Wu
- Department of Biopharmaceutics, West China School of Pharmacy, Sichuan University, Chengdu 610041, PR China; Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy Sichuan University, Chengdu 610041, PR China
| | - Yongxiang Zheng
- Department of Biopharmaceutics, West China School of Pharmacy, Sichuan University, Chengdu 610041, PR China; Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy Sichuan University, Chengdu 610041, PR China.
| | - Rong Yu
- Department of Biopharmaceutics, West China School of Pharmacy, Sichuan University, Chengdu 610041, PR China; Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy Sichuan University, Chengdu 610041, PR China.
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Mamone G, Di Stasio L, Vitale S, Picascia S, Gianfrani C. Analytical and functional approaches to assess the immunogenicity of gluten proteins. Front Nutr 2023; 9:1049623. [PMID: 36741992 PMCID: PMC9890883 DOI: 10.3389/fnut.2022.1049623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 12/15/2022] [Indexed: 01/19/2023] Open
Abstract
Gluten proteins are the causative agents of celiac disease (CD), a lifelong and worldwide spread food intolerance, characterized by an autoimmune enteropathy. Gluten is a complex mixture of high homologous water-insoluble proteins, characterized by a high content of glutamine and proline amino acids that confers a marked resistance to degradation by gastrointestinal proteases. As a consequence of that, large peptides are released in the gut lumen with the potential to activate inflammatory T cells, in CD predisposed individuals. To date, several strategies aimed to detoxify gluten proteins or to develop immunomodulatory drugs to recover immune tolerance to gluten are under investigation. This review overviews the state of art of both analytical and functional methods currently used to assess the immunogenicity potential of gluten proteins from different cereal sources, including native raw seed flours and complex food products, as well as drug-treated samples. The analytical design to assess the content and profile of gluten immunogenic peptides, described herein, is based on the oral-gastro-intestinal digestion (INFOGEST model) followed by extensive characterization of residual gluten peptides by proteomic and immunochemical analyses. These approaches include liquid chromatography-high-resolution mass spectrometry (LC-MS/MS) and R5/G12 competitive ELISA. Functional studies to assess the immune stimulatory capabilities of digested gluten peptides are based on gut mucosa T cells or peripheral blood cells obtained from CD volunteers after a short oral gluten challenge.
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Affiliation(s)
- Gianfranco Mamone
- Institute of Food Science, Department of Biology, Agriculture and Food Sciences, National Research Council of Italy, Avellino, Italy
| | - Luigia Di Stasio
- Institute of Food Science, Department of Biology, Agriculture and Food Sciences, National Research Council of Italy, Avellino, Italy
| | - Serena Vitale
- Institute of Biochemistry and Cell Biology, Department of Biomedical Sciences, National Research Council of Italy, Naples, Italy
| | - Stefania Picascia
- Institute of Biochemistry and Cell Biology, Department of Biomedical Sciences, National Research Council of Italy, Naples, Italy
| | - Carmen Gianfrani
- Institute of Biochemistry and Cell Biology, Department of Biomedical Sciences, National Research Council of Italy, Naples, Italy,*Correspondence: Carmen Gianfrani,
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Dewala S, Bodkhe R, Nimonkar Y, Prakash OM, Ahuja V, Makharia GK, Shouche YS. Human small-intestinal gluten-degrading bacteria and its potential implication in celiac disease. J Biosci 2023; 48:18. [PMID: 37309172 DOI: 10.1007/s12038-023-00337-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 01/11/2023] [Indexed: 08/30/2023]
Abstract
Celiac disease (CeD) is an immune-mediated chronic disorder triggered by the ingestion of wheat gluten in genetically predisposed individuals. Gluten is a major food ingredient, infamously containing proline and glutamine-rich domains that are highly resistant to digestion by mammalian proteolytic enzymes. Thus, adhering to a gluten-free diet (GFD) is the only known treatment for CeD, albeit with many complications. Therefore, any therapy that eliminates the gluten immunogenic part before it reaches the small intestine is highly desirable. Probiotic therapy containing gluten-degrading bacteria (GDB) and their protease enzymes are possibly new approaches to treating CeD. Our study aimed to identify novel GDB from the duodenal biopsy of the first-degree relative (FDR) subjects (relatives of diseased individuals who are healthy but susceptible to celiac disease) with the potential to reduce gluten immunogenicity. Using the gluten agar plate technique, bacterial strains Brevibacterium casei NAB46 and Staphylococcus arlettae R2AA77 displaying glutenase activity were screened, identified, and characterized. Whole-genome sequencing found gluten-degrading prolyl endopeptidase (PEP) in the B. casei NAB46 genome and glutamyl endopeptidase (GEP) in the S. arlettae R2AA77 genome. Partially purified PEP has a specific activity of 1.15 U/mg, while GEP has a specific activity of 0.84 U/mg, which are, respectively, 6- and 9-fold times higher after concentrating the enzymes. Our results showed that these enzymes could hydrolyse immunotoxic gliadin peptides recognized in western blot using an anti-gliadin antibody. Additionally, a docking model was proposed for representative gliadin peptide PQPQLPYPQPQLP in the active site of the enzymes, where the residues of the N-terminal peptide extensively interact with the catalytic domain of the enzymes. These bacteria and their associated glutenase enzymes efficiently neutralize gliadin immunogenic epitopes, opening possibilities for their application as a dietary supplement in treating CeD patients.
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Characterization of the recombinant PepX peptidase from Lactobacillus fermentum and its effect on gliadin protein hydrolysis in vitro. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01273-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wagh SK, Lammers KM, Padul MV, Rodriguez-Herrera A, Dodero VI. Celiac Disease and Possible Dietary Interventions: From Enzymes and Probiotics to Postbiotics and Viruses. Int J Mol Sci 2022; 23:ijms231911748. [PMID: 36233048 PMCID: PMC9569549 DOI: 10.3390/ijms231911748] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/20/2022] [Accepted: 09/29/2022] [Indexed: 11/24/2022] Open
Abstract
Celiac Disease (CeD) is a chronic small intestinal immune-mediated enteropathy caused by the ingestion of dietary gluten proteins in genetically susceptible individuals. CeD is one of the most common autoimmune diseases, affecting around 1.4% of the population globally. To date, the only acceptable treatment for CeD is strict, lifelong adherence to a gluten-free diet (GFD). However, in some cases, GFD does not alter gluten-induced symptoms. In addition, strict adherence to a GFD reduces patients’ quality of life and is often a socio-economic burden. This narrative review offers an interdisciplinary overview of CeD pathomechanism and the limitations of GFD, focusing on current research on possible dietary interventions. It concentrates on the recent research on the degradation of gluten through enzymes, the modulation of the microbiome, and the different types of “biotics” strategies, from probiotics to the less explored “viromebiotics” as possible beneficial complementary interventions for CeD management. The final aim is to set the context for future research that may consider the role of gluten proteins and the microbiome in nutritional and non-pharmacological interventions for CeD beyond the sole use of the GFD.
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Affiliation(s)
- Sandip K. Wagh
- Department of Organic and Bioorganic Chemistry, Bielefeld University, 33615 Bielefeld, Germany
- Department of Biochemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431004, India
| | | | - Manohar V. Padul
- Department of Biochemistry, The Institute of Science, Dr. Homi Bhabha State University, Mumbai 400032, India
| | | | - Veronica I. Dodero
- Department of Organic and Bioorganic Chemistry, Bielefeld University, 33615 Bielefeld, Germany
- Correspondence:
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11
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Wagh SK, Lammers KM, Padul MV, Rodriguez-Herrera A, Dodero VI. Celiac Disease and Possible Dietary Interventions: From Enzymes and Probiotics to Postbiotics and Viruses. Int J Mol Sci 2022. [PMID: 36233048 DOI: 10.3390/ijms231911748.pmid:36233048;pmcid:pmc9569549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023] Open
Abstract
Celiac Disease (CeD) is a chronic small intestinal immune-mediated enteropathy caused by the ingestion of dietary gluten proteins in genetically susceptible individuals. CeD is one of the most common autoimmune diseases, affecting around 1.4% of the population globally. To date, the only acceptable treatment for CeD is strict, lifelong adherence to a gluten-free diet (GFD). However, in some cases, GFD does not alter gluten-induced symptoms. In addition, strict adherence to a GFD reduces patients' quality of life and is often a socio-economic burden. This narrative review offers an interdisciplinary overview of CeD pathomechanism and the limitations of GFD, focusing on current research on possible dietary interventions. It concentrates on the recent research on the degradation of gluten through enzymes, the modulation of the microbiome, and the different types of "biotics" strategies, from probiotics to the less explored "viromebiotics" as possible beneficial complementary interventions for CeD management. The final aim is to set the context for future research that may consider the role of gluten proteins and the microbiome in nutritional and non-pharmacological interventions for CeD beyond the sole use of the GFD.
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Affiliation(s)
- Sandip K Wagh
- Department of Organic and Bioorganic Chemistry, Bielefeld University, 33615 Bielefeld, Germany
- Department of Biochemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431004, India
| | | | - Manohar V Padul
- Department of Biochemistry, The Institute of Science, Dr. Homi Bhabha State University, Mumbai 400032, India
| | | | - Veronica I Dodero
- Department of Organic and Bioorganic Chemistry, Bielefeld University, 33615 Bielefeld, Germany
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12
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Liu YY, Lin IC, Chen PC, Lee CC, Meng M. Crystal structure of a Burkholderia peptidase and modification of the substrate-binding site for enhanced hydrolytic activity toward gluten-derived pro-immunogenic peptides. Int J Biol Macromol 2022; 222:2258-2269. [DOI: 10.1016/j.ijbiomac.2022.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 09/19/2022] [Accepted: 10/03/2022] [Indexed: 11/05/2022]
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13
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Dieckman T, Koning F, Bouma G. Celiac disease: New therapies on the horizon. Curr Opin Pharmacol 2022; 66:102268. [DOI: 10.1016/j.coph.2022.102268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 05/24/2022] [Accepted: 06/14/2022] [Indexed: 11/03/2022]
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14
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Mamone G, Comelli MC, Vitale S, Di Stasio L, Kessler K, Mottola I, Siano F, Cavaletti L, Gianfrani C. E40 glutenase detoxification capabilities of residual gluten immunogenic peptides in in vitro gastrointestinal digesta of food matrices made of soft and durum wheat. Front Nutr 2022; 9:974771. [PMID: 36159465 PMCID: PMC9493446 DOI: 10.3389/fnut.2022.974771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 08/03/2022] [Indexed: 11/25/2022] Open
Abstract
Gluten degrading enzymes, which are commonly referred to as “glutenases,” represent attractive candidates for the development of a pharmacological treatment of gluten related disorders, such as coeliac disease (CeD). Endoprotease-40 (E40), a novel glutenase secreted by the actinomycete Actinoallomurus A8 and recombinantly produced in S. lividans TK24, was shown to be active at pH 3 to 6 (optimum pH 5), resistant to pepsin and trypsin degradation, able to destroy immunotoxicity of both gliadin 33-mer peptide and whole proteins and to strongly reduce the response of specific T cells when added to gliadin in in vitro gastrointestinal digestion. This study aims to functionally assess the capabilities of Endoprotease-40 (E40) to detoxify residual gluten immunogenic peptides in gastrointestinal digesta of food matrices made of soft and durum wheat. The INFOGEST harmonized protocols were applied to the multicompartmental model of simulated human gastrointestinal digestion, for the quantitative assessment of residual gluten in liquid (beer) and solid (bread and pasta) foods, made of either soft or durum wheat. Proteomic and immunological techniques, and functional assays on intestinal T cell lines from celiac disease patients were used to identify gluten-derived immunogenic peptide sequences surviving in gastric and gastrointestinal digesta after the addition of E40 at increasing enzyme: wheat proteins ratios. During the gastric phase (2 h incubation time), the addition of E40 demonstrated an extensive (≥ 95%) dose-dependent detoxification of whole gluten in real food matrices. Overall, the residual gluten content was found at, or even below, the 20 ppm gluten-free threshold for soft and durum wheat-based food. Furthermore, unlike in untreated gastrointestinal digesta, none of the immunodominant α-gliadin peptides survived in E40-treated digesta. Traces of ω- and γ-gliadin derived immunogenic peptides were still detected in E40-treated digesta, but unable to stimulate celiac-intestinal T cells. In conclusion, E40 is a promising candidate for the oral enzymatic therapy of CeD, as a stand-alone enzyme being efficient along the complete gastrointestinal digestion of gluten.
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Affiliation(s)
- Gianfranco Mamone
- Institute of Food Science, National Research Council of Italy, Avellino, Italy
- *Correspondence: Gianfranco Mamone,
| | | | - Serena Vitale
- Institute of Biochemistry and Cell Biology, National Research Council of Italy, Naples, Italy
| | - Luigia Di Stasio
- Institute of Food Science, National Research Council of Italy, Avellino, Italy
| | | | - Ilaria Mottola
- Institute of Biochemistry and Cell Biology, National Research Council of Italy, Naples, Italy
| | - Francesco Siano
- Institute of Food Science, National Research Council of Italy, Avellino, Italy
| | - Linda Cavaletti
- Fondazione Istituto Insubrico Ricerca per la Vita, Varese, Italy
| | - Carmen Gianfrani
- Institute of Biochemistry and Cell Biology, National Research Council of Italy, Naples, Italy
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15
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Vacca M, Porrelli A, Calabrese FM, Lippolis T, Iacobellis I, Celano G, Pinto D, Russo F, Giannelli G, De Angelis M. How Metabolomics Provides Novel Insights on Celiac Disease and Gluten-Free Diet: A Narrative Review. Front Microbiol 2022; 13:859467. [PMID: 35814671 PMCID: PMC9260055 DOI: 10.3389/fmicb.2022.859467] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 05/27/2022] [Indexed: 12/12/2022] Open
Abstract
Celiac disease (CD) is an inflammatory autoimmune disorder triggered by the ingestion of gluten from wheat and other cereals. Nowadays, its positive diagnosis is based on invasive approaches such as the histological examination of intestinal biopsies and positive serology screening of antibodies. After proven diagnosis, the only admissible treatment for CD individuals is strict life-long adherence to gluten-free diet (GFD), although it is not a conclusive therapy. Acting by different mechanisms and with different etiologies, both CD and GFD have a great impact on gut microbiota that result in a different taxa composition. Altered production of specific metabolites reflects these microbiota changes. In this light, the currently available literature reports some suggestions about the possible use of specific metabolites, detected by meta-omics analyses, as potential biomarkers for a CD non-invasive diagnosis. To highlight insights about metabolomics application in CD study, we conducted a narrative dissertation of selected original articles published in the last decade. By applying a systematic search, it clearly emerged how the metabolomic signature appears to be contradictory, as well as poorly investigated.
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Affiliation(s)
- Mirco Vacca
- Department of Soil, Plant and Food Science, University of Bari Aldo Moro, Bari, Italy
| | - Annalisa Porrelli
- Department of Soil, Plant and Food Science, University of Bari Aldo Moro, Bari, Italy
| | - Francesco Maria Calabrese
- Department of Soil, Plant and Food Science, University of Bari Aldo Moro, Bari, Italy
- *Correspondence: Francesco Maria Calabrese,
| | - Tamara Lippolis
- National Institute of Gastroenterology “S. de Bellis,” Institute of Research, Castellana Grotte, Italy
| | - Ilaria Iacobellis
- Department of Soil, Plant and Food Science, University of Bari Aldo Moro, Bari, Italy
| | - Giuseppe Celano
- Department of Soil, Plant and Food Science, University of Bari Aldo Moro, Bari, Italy
| | - Daniela Pinto
- Human Microbiome Advanced Project-HMPA, Giuliani SpA, Milan, Italy
| | - Francesco Russo
- National Institute of Gastroenterology “S. de Bellis,” Institute of Research, Castellana Grotte, Italy
| | - Gianluigi Giannelli
- National Institute of Gastroenterology “S. de Bellis,” Institute of Research, Castellana Grotte, Italy
| | - Maria De Angelis
- Department of Soil, Plant and Food Science, University of Bari Aldo Moro, Bari, Italy
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16
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Zhang L, Ruan Z, Jing J, Yang Y, Li Z, Zhang S, Yang J, Ai S, Luo N, Peng Y, Fang P, Lin H, Zou Y. High-Temperature Soup Foods in Plastic Packaging Are Associated with Phthalate Body Burden and Expression of Inflammatory mRNAs: A Dietary Intervention Study. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:8416-8427. [PMID: 35584204 DOI: 10.1021/acs.est.1c08522] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Plastic packaging material is widely used to package high-temperature soup food in China, but this combination might lead to increased exposure to phthalates. The health effects and potential biological mechanisms have not been well studied. This study aimed to examine urinary phthalate metabolites and the expression of inflammatory cytokines in the blood before, during, and after a "plastic-packaged high-temperature soup food" dietary intervention in healthy adults. The results showed that compared with those in the preintervention period, urinary creatinine-adjusted levels of monomethyl phthalate (MMP), mono-n-butyl phthalate (MBP), mono-isobutyl phthalate (MIBP), and total phthalate metabolites in the intervention period were significantly higher, with increases of 71.6, 41.8, 38.8, and 29.8% for MMP, MBP, MIBP, and the total phthalate metabolites, respectively. After intervention, the mean levels of IL-1β, IL-4, and TNF-α mRNA increased by 19.0, 21.5, and 25.0%, respectively, while IL-6 and IFN-γ mRNA decreased by 24.2 and 32.9%, respectively, when compared with the preintervention period. We also observed that several phthalates were associated with the mRNA or protein expression of IL-8, TNF-α, and IL-10. Therefore, consumption of plastic-packaged high-temperature soup food was linked to increased phthalate exposure and might result in significant changes in mRNA expression of several inflammatory cytokines.
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Affiliation(s)
- Li'e Zhang
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning 530021, China
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning 530021, China
| | - Zengliang Ruan
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
- Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing 210096, China
| | - Jiajun Jing
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning 530021, China
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning 530021, China
| | - Yin Yang
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Zhiying Li
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning 530021, China
| | - Shiyu Zhang
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Jie Yang
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning 530021, China
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning 530021, China
| | - Siqi Ai
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Na Luo
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning 530021, China
| | - Yang Peng
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning 530021, China
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning 530021, China
| | - Peiyu Fang
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning 530021, China
| | - Hualiang Lin
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Yunfeng Zou
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning 530021, China
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning 530021, China
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning 530021, China
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17
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Microbial Peptidase in Food Processing: Current State of the Art and Future Trends. Catal Letters 2022. [DOI: 10.1007/s10562-022-03965-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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18
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Treppiccione L, Luongo D, Maurano F, Rossi M. Next generation strategies to recover immunological tolerance in celiac disease. Int Rev Immunol 2022; 42:237-245. [PMID: 35225129 DOI: 10.1080/08830185.2022.2044807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Celiac disease (CD) is an autoimmune disease that occurs in genetically predisposed individuals following the ingestion of gluten. Its prevalence is rising worldwide. A gluten-free (GF) diet is mandatory for the management of CD. However, several issues persist regarding the nutritional quality of GF products. Importantly, deep knowledge about the pathogenic mechanisms in CD highlights the central role of CD4+ T cell-mediated immunity in CD. Furthermore, intestinal T regulatory cells are functional in CD, but cytokines such as IL-15, produced under inflammatory conditions, hamper their activity. This paves the way for the development of immunomodulatory strategies to the GF diet. From this perspective, microbiological approaches were considered able to modulate the gluten-specific immune response. Interestingly, gliadin peptide-based immunotherapy to abolish the inflammatory CD4+T cell-mediated response has been explored in CD patients. Furthermore, different biotechnological approaches based on the use of chemically/enzymatically modified gluten molecules have been proved effective in different models of CD. However, the choice of the right age in infants to introduce the antigen and thus induce tolerance still remains an important issue to solve. Addressing all these points should help to design an effective intervention strategy for preventing CD.
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Affiliation(s)
| | | | | | - Mauro Rossi
- Institute of Food Sciences, CNR, Avellino, Italy
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19
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Hwang S, Lee Y, Kim JH, Kim G, Kim H, Kim W, Cho S, Palsson BO, Cho BK. Streptomyces as Microbial Chassis for Heterologous Protein Expression. Front Bioeng Biotechnol 2022; 9:804295. [PMID: 34993191 PMCID: PMC8724576 DOI: 10.3389/fbioe.2021.804295] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 11/30/2021] [Indexed: 12/29/2022] Open
Abstract
Heterologous production of recombinant proteins is gaining increasing interest in biotechnology with respect to productivity, scalability, and wide applicability. The members of genus Streptomyces have been proposed as remarkable hosts for heterologous production due to their versatile nature of expressing various secondary metabolite biosynthetic gene clusters and secretory enzymes. However, there are several issues that limit their use, including low yield, difficulty in genetic manipulation, and their complex cellular features. In this review, we summarize rational engineering approaches to optimizing the heterologous production of secondary metabolites and recombinant proteins in Streptomyces species in terms of genetic tool development and chassis construction. Further perspectives on the development of optimal Streptomyces chassis by the design-build-test-learn cycle in systems are suggested, which may increase the availability of secondary metabolites and recombinant proteins.
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Affiliation(s)
- Soonkyu Hwang
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, South Korea.,KAIST Institute for the BioCentury, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Yongjae Lee
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, South Korea.,KAIST Institute for the BioCentury, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Ji Hun Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, South Korea.,KAIST Institute for the BioCentury, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Gahyeon Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, South Korea.,KAIST Institute for the BioCentury, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Hyeseong Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, South Korea.,KAIST Institute for the BioCentury, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Woori Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, South Korea.,KAIST Institute for the BioCentury, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Suhyung Cho
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, South Korea.,KAIST Institute for the BioCentury, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Bernhard O Palsson
- Department of Bioengineering, University of California, San Diego, La Jolla, CA, United States.,Department of Pediatrics, University of California, San Diego, La Jolla, CA, United States.,Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Lyngby, Denmark
| | - Byung-Kwan Cho
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, South Korea.,KAIST Institute for the BioCentury, Korea Advanced Institute of Science and Technology, Daejeon, South Korea.,Innovative Biomaterials Research Center, KAIST Institutes, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
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20
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Tanner GJ. Relative Rates of Gluten Digestion by Nine Commercial Dietary Digestive Supplements. Front Nutr 2021; 8:784850. [PMID: 34950690 PMCID: PMC8688929 DOI: 10.3389/fnut.2021.784850] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 11/08/2021] [Indexed: 01/08/2023] Open
Abstract
Endopeptidases containing supplements may digest gluten and reduce the impact on celiac and gluten-sensitive subjects who inadvertently consume gluten. We investigated the relative rate of disappearance of coeliac relevant epitopes in extracts of nine commercial supplements, using two competitive enzyme-linked immunosorbent assays (ELISAs)—Ridascreen (detects QQPFP, QQQFP, LQPFP, and QLPFP) and Gluten-Tec (detects Glia-α20 and PFRPQQPYPQ). All epitopes are destroyed by cleavage after P and Q amino acids. Rates at pH 3.5 and pH 7.0 were measured. These experiments were designed to measure relative rates of epitope digestion not to mimic in vivo digestion. The supplements were: 1 GluteGuard, 2 GlutenBlock, 3 GliadinX, 4 GlutnGo, 5 GlutenRescue, 6 Eat E-Z Gluten+, 7 Glutenease, 8 Glutezyme, and 9 Gluten Digest. The mean initial rate and half-lives of epitope digestion were deduced and extrapolated to rates at the recommended dose of one supplement in a fasting stomach volume. At pH 7, supplement 1 was the fastest acting of the supplements, with Ridascreen ELISA, more than twice as fast as the next fastest supplements, 5, 6, 7, and 8. Supplements 2, 3, and 4 showed little activity at pH 7.0. Supplement 1 was also the fastest acting at pH 7 with Gluten-Tec ELISA, more than three times the rate for supplements 2 and 3, with supplements 4–9 showing minimal activity. At pH 3.5, supplement 1 acted more than five times as fast as the next fastest supplements, 2 and 3, when measured by Ridascreen, but supplements 2 and 3 were over two times faster than supplement 1 when measured by Gluten-Tec. Supplements 4–9 demonstrated minimal activity at pH 3.5 with either ELISA. Supplement 1 most rapidly digested the key immuno-reactive gluten epitopes identified by the R5 antibody in the Codex-approved competitive Ridascreen ELISA method and associated with the pathology of celiac disease.
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21
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Poutanen KS, Kårlund AO, Gómez-Gallego C, Johansson DP, Scheers NM, Marklinder IM, Eriksen AK, Silventoinen PC, Nordlund E, Sozer N, Hanhineva KJ, Kolehmainen M, Landberg R. Grains - a major source of sustainable protein for health. Nutr Rev 2021; 80:1648-1663. [PMID: 34741520 PMCID: PMC9086769 DOI: 10.1093/nutrit/nuab084] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Cereal grains are the main dietary source of energy, carbohydrates, and plant proteins world-wide. Currently, only 41% of grains are used for human consumption, and up to 35% are used for animal feed. Cereals have been overlooked as a source of environmentally sustainable and healthy plant proteins and could play a major role in transitioning towards a more sustainable food system for healthy diets. Cereal plant proteins are of good nutritional quality, but lysine is often the limiting amino acid. When consumed as whole grains, cereals provide health-protecting components such as dietary fiber and phytochemicals. Shifting grain use from feed to traditional foods and conceptually new foods and ingredients could improve protein security and alleviate climate change. Rapid development of new grain-based food ingredients and use of grains in new food contexts, such as dairy replacements and meat analogues, could accelerate the transition. This review discusses recent developments and outlines future perspectives for cereal grain use.
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Affiliation(s)
| | - Anna O Kårlund
- Faculty of Health Sciences, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Carlos Gómez-Gallego
- Faculty of Health Sciences, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Daniel P Johansson
- Department of Molecular Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Nathalie M Scheers
- Division of Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Ingela M Marklinder
- Department of Food Studies, Nutrition and Dietetics, Uppsala University, Uppsala, Sweden. A.K. Eriksen is with the Unit of Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Anne K Eriksen
- Department of Food Studies, Nutrition and Dietetics, Uppsala University, Uppsala, Sweden. A.K. Eriksen is with the Unit of Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark
| | | | | | - Nesli Sozer
- VTT Technical Research Centre of Finland, Espoo, Finland
| | - Kati J Hanhineva
- Faculty of Health Sciences, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland.,Division of Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden.,Food Chemistry and Food Development Unit, Department of Biochemistry, University of Turku, Turku, Finland
| | - Marjukka Kolehmainen
- Faculty of Health Sciences, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Rikard Landberg
- Division of Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
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22
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Segura V, Ruiz-Carnicer Á, Sousa C, Moreno MDL. New Insights into Non-Dietary Treatment in Celiac Disease: Emerging Therapeutic Options. Nutrients 2021; 13:2146. [PMID: 34201435 PMCID: PMC8308370 DOI: 10.3390/nu13072146] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/11/2021] [Accepted: 06/15/2021] [Indexed: 02/07/2023] Open
Abstract
To date, the only treatment for celiac disease (CD) consists of a strict lifelong gluten-free diet (GFD), which has numerous limitations in patients with CD. For this reason, dietary transgressions are frequent, implying intestinal damage and possible long-term complications. There is an unquestionable need for non-dietary alternatives to avoid damage by involuntary contamination or voluntary dietary transgressions. In recent years, different therapies and treatments for CD have been developed and studied based on the degradation of gluten in the intestinal lumen, regulation of the immune response, modulation of intestinal permeability, and induction of immunological tolerance. In this review, therapeutic lines for CD are evaluated with special emphasis on phase III and II clinical trials, some of which have promising results.
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Affiliation(s)
| | | | | | - María de Lourdes Moreno
- Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain; (V.S.); (Á.R.-C.); (C.S.)
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23
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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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Liu YY, Lee CC, Hsu JH, Leu WM, Meng M. Efficient Hydrolysis of Gluten-Derived Celiac Disease-Triggering Immunogenic Peptides by a Bacterial Serine Protease from Burkholderia gladioli. Biomolecules 2021; 11:biom11030451. [PMID: 33802942 PMCID: PMC8002681 DOI: 10.3390/biom11030451] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/11/2021] [Accepted: 03/14/2021] [Indexed: 12/11/2022] Open
Abstract
Celiac disease is an autoimmune disorder triggered by toxic peptides derived from incompletely digested glutens in the stomach. Peptidases that can digest the toxic peptides may formulate an oral enzyme therapy to improve the patients’ health condition. Bga1903 is a serine endopeptidase secreted by Burkholderia gladioli. The preproprotein of Bga1903 consists of an N-terminal signal peptide, a propeptide region, and an enzymatic domain that belongs to the S8 subfamily. Bga1903 could be secreted into the culture medium when it was expressed in E. coli. The purified Bga1903 is capable of hydrolyzing the gluten-derived toxic peptides, such as the 33- and 26-mer peptides, with the preference for the peptide bonds at the carbonyl site of glutamine (P1 position). The kinetic assay of Bga1903 toward the chromogenic substrate Z-HPQ-pNA at 37 °C, pH 7.0, suggests that the values of Km and kcat are 0.44 ± 0.1 mM and 17.8 ± 0.4 s−1, respectively. The addition of Bga1903 in the wort during the fermentation step of beer could help in making gluten-free beer. In summary, Bga1903 is usable to reduce the gluten content in processed foods and represents a good candidate for protein engineering/modification aimed to efficiently digest the gluten at the gastric condition.
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Affiliation(s)
- Yu-You Liu
- Program in Microbial Genomics, National Chung Hsing University and Academia Sinica, Taichung 40227, Taiwan;
| | - Cheng-Cheng Lee
- Graduate Institute of Biotechnology, National Chung Hsing University, 250 Kuo-Kuang Rd., Taichung 40227, Taiwan; (C.-C.L.); (J.-H.H.); (W.-M.L.)
| | - Jun-Hao Hsu
- Graduate Institute of Biotechnology, National Chung Hsing University, 250 Kuo-Kuang Rd., Taichung 40227, Taiwan; (C.-C.L.); (J.-H.H.); (W.-M.L.)
| | - Wei-Ming Leu
- Graduate Institute of Biotechnology, National Chung Hsing University, 250 Kuo-Kuang Rd., Taichung 40227, Taiwan; (C.-C.L.); (J.-H.H.); (W.-M.L.)
| | - Menghsiao Meng
- Graduate Institute of Biotechnology, National Chung Hsing University, 250 Kuo-Kuang Rd., Taichung 40227, Taiwan; (C.-C.L.); (J.-H.H.); (W.-M.L.)
- Correspondence: ; Tel.: +886-4-22840328
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26
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Kivelä L, Caminero A, Leffler DA, Pinto-Sanchez MI, Tye-Din JA, Lindfors K. Current and emerging therapies for coeliac disease. Nat Rev Gastroenterol Hepatol 2021; 18:181-195. [PMID: 33219355 DOI: 10.1038/s41575-020-00378-1] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/19/2020] [Indexed: 12/12/2022]
Abstract
Coeliac disease is a common enteropathy that occurs in genetically susceptible individuals in response to the ingestion of gluten proteins present in wheat, rye and barley. Currently, the only available treatment for the condition is a strict, life-long gluten-free diet that, despite being safe and often effective, is associated with several challenges. Due to the high cost, particularly restrictive nature and perception of decreased quality of life associated with the diet, some patients are continuously exposed to gluten, which prevents an adequate disease control. Moreover, a subgroup of patients does not respond to the diet adequately, and healing of the small-bowel mucosa can be incomplete. Thus, there is a need for alternative treatment forms. The increasingly understood pathogenetic process of coeliac disease has enabled the identification of various targets for future therapies. Multiple investigational therapies ranging from tolerogenic to immunological approaches are in the pipeline, and several drug candidates have entered phase II/III clinical trials. This Review gives a broad overview of the different investigative treatment modalities for coeliac disease and summarizes the latest advances in this field.
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Affiliation(s)
- Laura Kivelä
- Tampere Center for Child Health Research, Tampere University and Tampere University Hospital, Tampere, Finland.,Children's Hospital and Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Alberto Caminero
- Department of Medicine, Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, ON, Canada
| | - Daniel A Leffler
- Harvard Celiac Disease Research Program, Department of Medicine, Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA, USA.,Takeda Pharmaceuticals, Cambridge, MA, USA
| | - Maria Ines Pinto-Sanchez
- Department of Medicine, Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, ON, Canada
| | - Jason A Tye-Din
- Immunology Division, The Walter and Eliza Hall Institute, Parkville, and Gastroenterology Department, The Royal Melbourne Hospital, Parkville, Australia
| | - Katri Lindfors
- Celiac Disease Research Center, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.
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27
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Kurki A, Kemppainen E, Laurikka P, Kaukinen K, Lindfors K. The use of peripheral blood mononuclear cells in celiac disease diagnosis and treatment. Expert Rev Gastroenterol Hepatol 2021; 15:305-316. [PMID: 33176106 DOI: 10.1080/17474124.2021.1850262] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Introduction: Celiac disease is characterized by an abnormal immune activation driven by the ingestion of gluten from wheat, barley, and rye. Gluten-specific CD4+ T cells play an important role in disease pathogenesis and are detectable among peripheral blood mononuclear cells (PBMCs). Areas covered: This review summarizes the use of celiac disease patient PBMCs in clinical applications focusing on their exploitation in the development of diagnostic approaches and novel drugs to replace or complement gluten-free diet. Expert opinion: The most used PBMC-based methods applied in celiac disease research include ELISpot and HLA-DQ:gluten tetramer technology. ELISpot has been utilized particularly in research aiming to develop a celiac disease vaccine and in studies addressing the toxicity of different grains in celiac disease. HLA-DQ:gluten tetramer technology on the other hand initially focused on improving current diagnostics but in combination with additional markers it is also a useful outcome measure in clinical trials to monitor the efficacy of drug candidates. In addition, the technology serves well in the more detailed characterization of celiac disease-specific T cells, thereby possibly revealing novel therapeutic targets. Future studies may also reveal clinical applications for PBMC microRNAs and/or dendritic cells or monocytes present among PBMCs.
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Affiliation(s)
- Alma Kurki
- Celiac Disease Research Center, Faculty of Medicine and Health Technology, Tampere University , Tampere, Finland
| | - Esko Kemppainen
- Celiac Disease Research Center, Faculty of Medicine and Health Technology, Tampere University , Tampere, Finland
| | - Pilvi Laurikka
- Celiac Disease Research Center, Faculty of Medicine and Health Technology, Tampere University , Tampere, Finland
| | - Katri Kaukinen
- Celiac Disease Research Center, Faculty of Medicine and Health Technology, Tampere University , Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital , Tampere, Finland
| | - Katri Lindfors
- Celiac Disease Research Center, Faculty of Medicine and Health Technology, Tampere University , Tampere, Finland
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Bradauskiene V, Vaiciulyte-Funk L, Shah B, Cernauskas D, Tita M. Recent Advances in Biotechnological Methods for Wheat Gluten Immunotoxicity Abolishment – a Review. POL J FOOD NUTR SCI 2021. [DOI: 10.31883/pjfns/132853] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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29
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Møller MS, Svensson B. Enzymes in grain processing. Curr Opin Food Sci 2021. [DOI: 10.1016/j.cofs.2020.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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30
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Application of corn zein as an anchoring molecule in a carbon nanotube enhanced electrochemical sensor for the detection of gliadin. Food Control 2020. [DOI: 10.1016/j.foodcont.2020.107350] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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31
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Berini F, Marinelli F, Binda E. Streptomycetes: Attractive Hosts for Recombinant Protein Production. Front Microbiol 2020; 11:1958. [PMID: 32973711 PMCID: PMC7468451 DOI: 10.3389/fmicb.2020.01958] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 07/24/2020] [Indexed: 01/28/2023] Open
Abstract
Enzymes are increasingly applied as biocatalysts for fulfilling industrial needs in a variety of applications and there is a bursting of interest for novel therapeutic proteins. Consequently, developing appropriate expression platforms for efficiently producing such recombinant proteins represents a crucial challenge. It is nowadays widely accepted that an ideal ‘universal microbial host’ for heterologous protein expression does not exist. Indeed, the first-choice microbes, as Escherichia coli or yeasts, possess known intrinsic limitations that inevitably restrict their applications. In this scenario, bacteria belonging to the Streptomyces genus need to be considered with more attention as promising, alternative, and versatile platforms for recombinant protein production. This is due to their peculiar features, first-of-all their natural attitude to secrete proteins in the extracellular milieu. Additionally, streptomycetes are considered robust and scalable industrial strains and a wide range of tools for their genetic manipulation is nowadays available. This mini-review includes an overview of recombinant protein production in streptomycetes, covering nearly 100 cases of heterologous proteins expressed in these Gram-positives from the 1980s to December 2019. We investigated homologous sources, heterologous hosts, and molecular tools (promoters/vectors/signal peptides) used for the expression of these recombinant proteins. We reported on their final cellular localization and yield. Thus, this analysis might represent a useful source of information, showing pros and cons of using streptomycetes as platform for recombinant protein production and paving the way for their more extensive use in future as alternative heterologous hosts.
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Affiliation(s)
- Francesca Berini
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Flavia Marinelli
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Elisa Binda
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
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32
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Scherf KA, Catassi C, Chirdo F, Ciclitira PJ, Feighery C, Gianfrani C, Koning F, Lundin KEA, Schuppan D, Smulders MJM, Tranquet O, Troncone R, Koehler P. Recent Progress and Recommendations on Celiac Disease From the Working Group on Prolamin Analysis and Toxicity. Front Nutr 2020; 7:29. [PMID: 32258047 PMCID: PMC7090026 DOI: 10.3389/fnut.2020.00029] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 02/26/2020] [Indexed: 12/12/2022] Open
Abstract
Celiac disease (CD) affects a growing number of individuals worldwide. To elucidate the causes for this increase, future multidisciplinary collaboration is key to understanding the interactions between immunoreactive components in gluten-containing cereals and the human gastrointestinal tract and immune system and to devise strategies for CD prevention and treatment beyond the gluten-free diet. During the last meetings, the Working Group on Prolamin Analysis and Toxicity (Prolamin Working Group, PWG) discussed recent progress in the field together with key stakeholders from celiac disease societies, academia, industry and regulatory bodies. Based on the current state of knowledge, this perspective from the PWG members provides recommendations regarding clinical, analytical and legal aspects of CD. The selected key topics that require future multidisciplinary collaborative efforts in the clinical field are to collect robust data on the increasing prevalence of CD, to evaluate what is special about gluten-specific T cells, to study their kinetics and transcriptomics and to put some attention to the identification of the environmental agents that facilitate the breaking of tolerance to gluten. In the field of gluten analysis, the key topics are the precise assessment of gluten immunoreactive components in wheat, rye and barley to understand how these are affected by genetic and environmental factors, the comparison of different methods for compliance monitoring of gluten-free products and the development of improved reference materials for gluten analysis.
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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
| | - Carlo Catassi
- Department of Pediatrics, Polytechnic University of Marche, Ancona, Italy
| | - Fernando Chirdo
- Instituto de Estudios Inmunologicos y Fisiopatologicos- IIFP (UNLP-CONICET), Universidad Nacional de La Plata, La Plata, Argentina
| | - Paul J. Ciclitira
- Norwich Medical School, University of East Anglia, Norwich, United Kingdom
| | | | - Carmen Gianfrani
- Institute of Biochemistry and Cell Biology, Italian National Council of Research, Naples, Italy
| | - Frits Koning
- Leiden University Medical Centre, Leiden, Netherlands
| | - Knut E. A. Lundin
- Department of Gastroenterology, Oslo University Hospital Rikshospitalet and Stiftelsen KG Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
| | - Detlef Schuppan
- Institute for Translational Medicine, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | | | | | - Riccardo Troncone
- European Laboratory for the Investigation of Food Induced Diseases (ELFID), Department of Medical Translational Sciences, University Federico II, Naples, Italy
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Osorio CE, Wen N, Mejías JH, Mitchell S, von Wettstein D, Rustgi S. Directed-Mutagenesis of Flavobacterium meningosepticum Prolyl-Oligopeptidase and a Glutamine-Specific Endopeptidase From Barley. Front Nutr 2020; 7:11. [PMID: 32133368 PMCID: PMC7040222 DOI: 10.3389/fnut.2020.00011] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 01/28/2020] [Indexed: 12/12/2022] Open
Abstract
Wheat gluten proteins are the known cause of celiac disease. The repetitive tracts of proline and glutamine residues in these proteins make them exceptionally resilient to digestion in the gastrointestinal tract. These indigested peptides trigger immune reactions in susceptible individuals, which could be either an allergic reaction or celiac disease. Gluten exclusion diet is the only approved remedy for such disorders. Recently, a combination of a glutamine specific endoprotease from barley (EP-B2), and a prolyl endopeptidase from Flavobacterium meningosepticum (Fm-PEP), when expressed in the wheat endosperm, were shown to reasonably detoxify immunogenic gluten peptides under simulated gastrointestinal conditions. However useful, these "glutenases" are limited in application due to their denaturation at high temperatures, which most of the food processes require. Variants of these enzymes from thermophilic organisms exist, but cannot be applied directly due to their optimum activity at temperatures higher than 37°C. Though, these enzymes can serve as a reference to guide the evolution of peptidases of mesophilic origin toward thermostability. Therefore, a sequence guided site-saturation mutagenesis approach was used here to introduce mutations in the genes encoding Fm-PEP and EP-B2. A thermostable variant of Fm-PEP capable of surviving temperatures up to 90°C and EP-B2 variant with a thermostability of up 60°C were identified using this approach. However, the level of thermostability achieved is not sufficient; the present study has provided evidence that the thermostability of glutenases can be improved. And this pilot study has paved the way for more detailed structural studies in the future to obtain variants of Fm-PEP and EP-B2 that can survive temperatures ~100°C to allow their packing in grains and use of such grains in the food industry.
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Affiliation(s)
- Claudia E. Osorio
- Department of Crop and Soil Sciences, Washington State University, Pullman, WA, United States
- Agriaquaculture Nutritional Genomic Center, Temuco, Chile
| | - Nuan Wen
- Department of Crop and Soil Sciences, Washington State University, Pullman, WA, United States
| | - Jaime H. Mejías
- Centro Regional de Investigación Carillanca, Instituto de Investigaciones Agropecuarias INIA, Temuco, Chile
| | - Shannon Mitchell
- Department of Biological Systems Engineering, Washington State University, Pullman, WA, United States
| | - Diter von Wettstein
- Department of Crop and Soil Sciences, Washington State University, Pullman, WA, United States
| | - Sachin Rustgi
- Department of Crop and Soil Sciences, Washington State University, Pullman, WA, United States
- Department of Plant and Environmental Sciences, Clemson University Pee Dee Research and Education Center, Florence, SC, United States
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