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Nugraha Y, Laksmi FA, Nuryana I, Helbert, Khasna FN. Production of reverse transcriptase from Moloney murine Leukemia virus in Escherichia coli expression system. Prep Biochem Biotechnol 2024:1-9. [PMID: 38411149 DOI: 10.1080/10826068.2024.2317311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Reverse transcriptase (RT) is one of the most important enzymes used in molecular biology applications, enabling the conversion of RNA into complementary DNA (cDNA) that is used in reverse transcription-polymerase chain reaction (RT-PCR). The high demand of RT enzymes in biotechnological applications making the production optimization of RT is crucial for meeting the growing demand in industrial settings. Conventionally, the expression of recombinant RT is T7-induced promoter using IPTG in Escherichia coli expression systems, which is not cost-efficient. Here, we successfully made an alternative procedure for RT expression from Moloney murine leukemia virus (M-MLV) using autoinduction method in chemically defined medium. The optimization of carbon source composition (glucose, lactose, and glycerol) was analyzed using Response Surface Methodology (RSM). M-MLV RT was purified for further investigation on its activity. A total of 32.8 mg/L purified M-MLV RT was successfully obtained when glucose, glycerol, and lactose were present at concentration of 0.06%, 0.9%, and 0.5% respectively, making a 3.9-fold improvement in protein yield. In addition, the protein was produced in its active form by displaying 7462.50 U/mg of specific activity. This study provides the first step of small-scale procedures of M-MLV RT production that make it a cost-effective and industrially applicable strategy.
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Affiliation(s)
- Yudhi Nugraha
- Research Center for Molecular Biology Eijkman, National Research and Innovation Agency, Cibinong, Bogor, West Java, Indonesia
| | - Fina Amreta Laksmi
- Research Center for Applied Microbiology, National Research and Innovation Agency, Cibinong, Bogor, West Java, Indonesia
| | - Isa Nuryana
- Research Center for Applied Microbiology, National Research and Innovation Agency, Cibinong, Bogor, West Java, Indonesia
| | - Helbert
- Research Center for Ecology and Ethnobiology, National Research and Innovation Agency, Cibinong, Bogor, West Java, Indonesia
| | - Firyal Nida Khasna
- Research Center for Applied Microbiology, National Research and Innovation Agency, Cibinong, Bogor, West Java, Indonesia
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2
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Li S, Chu KH, Wai CYY. Genomics of Shrimp Allergens and Beyond. Genes (Basel) 2023; 14:2145. [PMID: 38136967 PMCID: PMC10742822 DOI: 10.3390/genes14122145] [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: 10/25/2023] [Revised: 11/21/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023] Open
Abstract
Allergy to shellfishes, including mollusks and crustaceans, is a growing health concern worldwide. Crustacean shellfish is one of the "Big Eight" allergens designated by the U.S. Food and Drug Administration and is the major cause of food-induced anaphylaxis. Shrimp is one of the most consumed crustaceans triggering immunoglobulin E (IgE)-mediated allergic reactions. Over the past decades, the allergen repertoire of shrimp has been unveiled based on conventional immunodetection methods. With the availability of genomic data for penaeid shrimp and other technological advancements like transcriptomic approaches, new shrimp allergens have been identified and directed new insights into their expression levels, cross-reactivity, and functional impact. In this review paper, we summarize the current knowledge on shrimp allergens, as well as allergens from other crustaceans and mollusks. Specific emphasis is put on the genomic information of the shrimp allergens, their protein characteristics, and cross-reactivity among shrimp and other organisms.
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Affiliation(s)
- Shanshan Li
- School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China; (S.L.); (K.H.C.)
| | - Ka Hou Chu
- School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China; (S.L.); (K.H.C.)
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 510000, China
| | - Christine Yee Yan Wai
- Department of Paediatrics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, China
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3
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Zhao J, Timira V, Ahmed I, Chen Y, Wang H, Zhang Z, Lin H, Li Z. Crustacean shellfish allergens: influence of food processing and their detection strategies. Crit Rev Food Sci Nutr 2022; 64:3794-3822. [PMID: 36263970 DOI: 10.1080/10408398.2022.2135485] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Despite the increasing popularity of crustacean shellfish among consumers due to their rich nutrients, they can induce a serious allergic response, sometimes even life-threatening. In the past decades, a variety of crustacean allergens have been identified to facilitate the diagnosis and management of crustacean allergies. Although food processing techniques can ease the risk of crustacean shellfish allergy, no available processing methods to tackle crustacean allergies thoroughly. Strict dietary avoidance of crustacean shellfish and its component is the best option for the protection of sensitized individuals, which should rely on the compliance of food labeling and, as such, on their verification by sensitive, reliable, and accurate detection techniques. In this present review, the physiochemical properties, structure aspects, and immunological characteristics of the major crustacean allergens have been described and discussed. Subsequently, the current research progresses on how various processing techniques cause the alterations and modifications in crustacean allergens to produce hypoallergenic crustacean food products were summarized and discussed. Particularly, various analytical methodologies employed in crustacean shellfish allergen detection, and the effect of food processing and matrix on these techniques, are also herein emphasized for the appropriate selection of analytical detection tools to safeguard consumers safety.
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Affiliation(s)
- Jinlong Zhao
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong, P.R. China
| | - Vaileth Timira
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong, P.R. China
| | - Ishfaq Ahmed
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong, P.R. China
| | - Yan Chen
- China National Center for Food Safety Risk Assessment, Chaoyang District, Beijing, P.R. China
| | - Hao Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong, P.R. China
| | - Ziye Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong, P.R. China
| | - Hong Lin
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong, P.R. China
| | - Zhenxing Li
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong, P.R. China
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Nugraha R, Ruethers T, Taki AC, Johnston EB, Karnaneedi S, Kamath SD, Lopata AL. Recombinant Tropomyosin from the Pacific Oyster (Crassostrea gigas) for Better Diagnosis. Foods 2022; 11:foods11030404. [PMID: 35159555 PMCID: PMC8834279 DOI: 10.3390/foods11030404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/24/2022] [Accepted: 01/25/2022] [Indexed: 02/01/2023] Open
Abstract
The Pacific oyster is a commercially important mollusc and, in contrast to most other shellfish species, frequently consumed without prior heat treatment. Oysters are rich in many nutrients but can also cause food allergy. Knowledge of their allergens and cross-reactivity remains very limited. These limitations make an optimal diagnosis of oyster allergy difficult, in particular to the Pacific oyster (Crassostrea gigas), the most cultivated and consumed oyster species worldwide. This study aimed to characterise IgE sensitisation profiles of 21 oyster-sensitised patients to raw and heated Pacific oyster extract using immunoblotting and advanced mass spectrometry, and to assess the relevance of recombinant oyster allergen for improved diagnosis. Tropomyosin was identified as the major allergen recognised by IgE from 18 of 21 oyster-sensitised patients and has been registered with the WHO/IUIS as the first oyster allergen (Cra g 1). The IgE-binding capacity of oyster-sensitised patients’ IgE to purified natural and recombinant tropomyosin from oyster, prawn, and dust mite was compared using enzyme-linked immunosorbent assay. The degree of IgE binding varied between patients, indicating partial cross-sensitisation and/or co-sensitisation. Amino acid sequence alignment of tropomyosin from these three species revealed five regions that contain predicted IgE-binding epitopes, which are most likely responsible for this cross-reactivity. This study fully biochemically characterises the first and major oyster allergen Cra g 1 and demonstrates that the corresponding recombinant tropomyosin should be implemented in improved component-resolved diagnostics and guide future immunotherapy.
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Affiliation(s)
- Roni Nugraha
- Department of Aquatic Product Technology, Faculty of Fisheries and Marine Science, IPB University, Bogor 16680, Indonesia;
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Douglas 4811, Australia; (T.R.); (A.C.T.); (E.B.J.); (S.K.); (S.D.K.)
- Australian Institute of Tropical Health and Medicine, James Cook University, Douglas 4811, Australia
- Centre for Sustainable Tropical Fisheries and Aquaculture, Faculty of Science and Engineering, James Cook University, Douglas 4811, Australia
| | - Thimo Ruethers
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Douglas 4811, Australia; (T.R.); (A.C.T.); (E.B.J.); (S.K.); (S.D.K.)
- Australian Institute of Tropical Health and Medicine, James Cook University, Douglas 4811, Australia
- Centre for Sustainable Tropical Fisheries and Aquaculture, Faculty of Science and Engineering, James Cook University, Douglas 4811, Australia
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, Parkville 3052, Australia
- Tropical Futures Institute, James Cook University Singapore, Singapore 387380, Singapore
| | - Aya C. Taki
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Douglas 4811, Australia; (T.R.); (A.C.T.); (E.B.J.); (S.K.); (S.D.K.)
- Department of Veterinary Biosciences, Melbourne Veterinary School, The University of Melbourne, Melbourne 3010, Australia
| | - Elecia B. Johnston
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Douglas 4811, Australia; (T.R.); (A.C.T.); (E.B.J.); (S.K.); (S.D.K.)
- Australian Institute of Tropical Health and Medicine, James Cook University, Douglas 4811, Australia
- Centre for Sustainable Tropical Fisheries and Aquaculture, Faculty of Science and Engineering, James Cook University, Douglas 4811, Australia
| | - Shaymaviswanathan Karnaneedi
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Douglas 4811, Australia; (T.R.); (A.C.T.); (E.B.J.); (S.K.); (S.D.K.)
- Australian Institute of Tropical Health and Medicine, James Cook University, Douglas 4811, Australia
- Centre for Sustainable Tropical Fisheries and Aquaculture, Faculty of Science and Engineering, James Cook University, Douglas 4811, Australia
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, Parkville 3052, Australia
| | - Sandip D. Kamath
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Douglas 4811, Australia; (T.R.); (A.C.T.); (E.B.J.); (S.K.); (S.D.K.)
- Australian Institute of Tropical Health and Medicine, James Cook University, Douglas 4811, Australia
- Centre for Sustainable Tropical Fisheries and Aquaculture, Faculty of Science and Engineering, James Cook University, Douglas 4811, Australia
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, Parkville 3052, Australia
| | - Andreas L. Lopata
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Douglas 4811, Australia; (T.R.); (A.C.T.); (E.B.J.); (S.K.); (S.D.K.)
- Australian Institute of Tropical Health and Medicine, James Cook University, Douglas 4811, Australia
- Centre for Sustainable Tropical Fisheries and Aquaculture, Faculty of Science and Engineering, James Cook University, Douglas 4811, Australia
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, Parkville 3052, Australia
- Tropical Futures Institute, James Cook University Singapore, Singapore 387380, Singapore
- Correspondence: ; Tel.: +61-747814563
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Molecular and allergenic characterization of recombinant tropomyosin from mud crab Scylla olivacea. Mol Biol Rep 2021; 48:6709-6718. [PMID: 34427887 DOI: 10.1007/s11033-021-06661-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 08/17/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND Tropomyosin is a major allergen in crustaceans, including mud crab species, but its molecular and allergenic properties in Scylla olivacea are not well known. Thus, this study aimed to produce the recombinant tropomyosin protein from S. olivacea and subsequently investigate its IgE reactivity. METHODS AND RESULTS The tropomyosin gene was cloned and expressed in the Escherichia coli system, followed by SDS-PAGE and immunoblotting test to identify the allergenic potential of the recombinant protein. The 855-base pair of tropomyosin gene produced was found to be 99.18% homologous to Scylla serrata. Its 284 amino acids matched the tropomyosin of crustaceans, arachnids, insects, and Klebsiella pneumoniae, ranging from 79.03 to 95.77%. The tropomyosin contained 89.44% alpha-helix folding with a tertiary structure of two-chain alpha-helical coiled-coil structures comprising a homodimer heptad chain. IPTG-induced histidine tagged-recombinant tropomyosin was purified at the size of 42 kDa and confirmed as tropomyosin using anti-tropomyosin monoclonal antibodies. The IgE binding of recombinant tropomyosin protein was reactive in 90.9% (20/22) of the sera from crab-allergic patients. CONCLUSIONS This study has successfully produced an allergenic recombinant tropomyosin from S. olivacea. This recombinant tropomyosin may be used as a specific allergen for the diagnosis of allergy.
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Thomassen MR, Kamath SD, Bang BE, Nugraha R, Nie S, Williamson NA, Lopata AL, Aasmoe L. Occupational Allergic Sensitization Among Workers Processing King Crab (Paralithodes camtschaticus) and Edible Crab (Cancer pagurus) in Norway and Identification of Novel Putative Allergenic Proteins. FRONTIERS IN ALLERGY 2021; 2:718824. [PMID: 35387003 PMCID: PMC8974837 DOI: 10.3389/falgy.2021.718824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 07/27/2021] [Indexed: 11/16/2022] Open
Abstract
Introduction: Asthma and allergy occur frequently among seafood processing workers, with the highest prevalence seen in the crustacean processing industry. In this study we established for the first time the prevalence of allergic sensitization in the Norwegian king- and edible crab processing industry and characterized the IgE-reactive proteins. Materials and Methods: Two populations of crab processing workers participated; 119 king crab and 65 edible crab workers. The investigation included information on work tasks and health through a detailed questionnaire. Allergic sensitization was investigated by crab-specific IgE quantification and skin prick tests (SPT) to four in-house prepared crab extracts; raw meat, cooked meat, raw intestines and raw shell. Allergen-specific IgE binding patterns were analyzed by IgE immunoblotting to the four allergen extracts using worker serum samples. Total proteins in crab SPT extracts and immunoblot-based IgE binding proteins were identified by mass spectrometric analysis. Results: Positive SPTs were established in 17.5% of king- and 18.1% of edible crab workers, while elevated IgE to crab were demonstrated in 8.9% of king- and 12.2% of edible crab processing workers. There was no significant difference between the king and edible crab workers with respect to self-reported respiratory symptoms, elevated specific IgE to crab or SPT results. Individual workers exhibited differential IgE binding patterns to different crab extracts, with most frequent binding to tropomyosin and arginine kinase and two novel IgE binding proteins, hemocyanin and enolase, identified as king- and edible crab allergens. Conclusions: Occupational exposure to king- and edible crabs may frequently cause IgE mediated allergic sensitization. Future investigations addressing the diagnostic value of crab allergens including tropomyosin and arginine kinase and the less well-known IgE-binding proteins hemocyanin and enolase in a component-resolved diagnostic approach to crab allergy should be encouraged.
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Affiliation(s)
- Marte R. Thomassen
- Department of Community Medicine, University of Tromsø The Arctic University of Norway, Tromsø, Norway
- Department of Occupational and Environmental Medicine, University Hospital North Norway, Tromsø, Norway
| | - Sandip D. Kamath
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Douglas, QLD, Australia
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD, Australia
- Centre for Food and Allergy Research, Murdoch Childrens Research Institute, Melbourne, VIC, Australia
- *Correspondence: Berit E. Bang
| | - Berit E. Bang
- Department of Community Medicine, University of Tromsø The Arctic University of Norway, Tromsø, Norway
- Department of Medical Biology, University of Tromsø The Arctic University of Norway, Tromsø, Norway
- Sandip D. Kamath
| | - Roni Nugraha
- Department of Aquatic Product Technology, Faculty of Fisheries and Marine Science, Institut Pertanian Bogor University, Bogor, Indonesia
| | - Shuai Nie
- Melbourne Mass Spectrometry and Proteomics Facility, Bio21 Molecular Science & Biotechnology Institute, The University of Melbourne, Melbourne, VIC, Australia
| | - Nicholas A. Williamson
- Melbourne Mass Spectrometry and Proteomics Facility, Bio21 Molecular Science & Biotechnology Institute, The University of Melbourne, Melbourne, VIC, Australia
| | - Andreas L. Lopata
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Douglas, QLD, Australia
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD, Australia
- Centre for Food and Allergy Research, Murdoch Childrens Research Institute, Melbourne, VIC, Australia
| | - Lisbeth Aasmoe
- Department of Community Medicine, University of Tromsø The Arctic University of Norway, Tromsø, Norway
- Department of Medical Biology, University of Tromsø The Arctic University of Norway, Tromsø, Norway
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7
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Karnaneedi S, Huerlimann R, Johnston EB, Nugraha R, Ruethers T, Taki AC, Kamath SD, Wade NM, Jerry DR, Lopata AL. Novel Allergen Discovery through Comprehensive De Novo Transcriptomic Analyses of Five Shrimp Species. Int J Mol Sci 2020; 22:E32. [PMID: 33375120 PMCID: PMC7792927 DOI: 10.3390/ijms22010032] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/10/2020] [Accepted: 12/19/2020] [Indexed: 12/19/2022] Open
Abstract
Shellfish allergy affects 2% of the world's population and persists for life in most patients. The diagnosis of shellfish allergy, in particular shrimp, is challenging due to the similarity of allergenic proteins from other invertebrates. Despite the clinical importance of immunological cross-reactivity among shellfish species and between allergenic invertebrates such as dust mites, the underlying molecular basis is not well understood. Here we mine the complete transcriptome of five frequently consumed shrimp species to identify and compare allergens with all known allergen sources. The transcriptomes were assembled de novo, using Trinity, from raw RNA-Seq data of the whiteleg shrimp (Litopenaeus vannamei), black tiger shrimp (Penaeus monodon), banana shrimp (Fenneropenaeus merguiensis), king shrimp (Melicertus latisulcatus), and endeavour shrimp (Metapenaeus endeavouri). BLAST searching using the two major allergen databases, WHO/IUIS Allergen Nomenclature and AllergenOnline, successfully identified all seven known crustacean allergens. The analyses revealed up to 39 unreported allergens in the different shrimp species, including heat shock protein (HSP), alpha-tubulin, chymotrypsin, cyclophilin, beta-enolase, aldolase A, and glyceraldehyde-3-phosphate dehydrogenase (G3PD). Multiple sequence alignment (Clustal Omega) demonstrated high homology with allergens from other invertebrates including mites and cockroaches. This first transcriptomic analyses of allergens in a major food source provides a valuable resource for investigating shellfish allergens, comparing invertebrate allergens and future development of improved diagnostics for food allergy.
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Affiliation(s)
- Shaymaviswanathan Karnaneedi
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD 4811, Australia; (S.K.); (E.B.J.); (R.N.); (T.R.); (A.C.T.); (S.D.K.)
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD 4811, Australia
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, The Royal Children’s Hospital, 50 Flemington Road, Parkville, VIC 3052, Australia
- ARC Research Hub for Advanced Prawn Breeding, Townsville, QLD 4811, Australia; (R.H.); (N.M.W.)
- Centre for Sustainable Tropical Fisheries and Aquaculture, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
- Centre for Tropical Bioinformatics and Molecular Biology, James Cook University, Townsville, QLD 4811, Australia
| | - Roger Huerlimann
- ARC Research Hub for Advanced Prawn Breeding, Townsville, QLD 4811, Australia; (R.H.); (N.M.W.)
- Centre for Sustainable Tropical Fisheries and Aquaculture, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
- Centre for Tropical Bioinformatics and Molecular Biology, James Cook University, Townsville, QLD 4811, Australia
| | - Elecia B. Johnston
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD 4811, Australia; (S.K.); (E.B.J.); (R.N.); (T.R.); (A.C.T.); (S.D.K.)
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD 4811, Australia
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, The Royal Children’s Hospital, 50 Flemington Road, Parkville, VIC 3052, Australia
- Centre for Sustainable Tropical Fisheries and Aquaculture, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
| | - Roni Nugraha
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD 4811, Australia; (S.K.); (E.B.J.); (R.N.); (T.R.); (A.C.T.); (S.D.K.)
- Department of Aquatic Product Technology, Bogor Agricultural University, Bogor 16680, Indonesia
| | - Thimo Ruethers
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD 4811, Australia; (S.K.); (E.B.J.); (R.N.); (T.R.); (A.C.T.); (S.D.K.)
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD 4811, Australia
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, The Royal Children’s Hospital, 50 Flemington Road, Parkville, VIC 3052, Australia
- Centre for Sustainable Tropical Fisheries and Aquaculture, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
- Centre for Tropical Bioinformatics and Molecular Biology, James Cook University, Townsville, QLD 4811, Australia
| | - Aya C. Taki
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD 4811, Australia; (S.K.); (E.B.J.); (R.N.); (T.R.); (A.C.T.); (S.D.K.)
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD 4811, Australia
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, The Royal Children’s Hospital, 50 Flemington Road, Parkville, VIC 3052, Australia
| | - Sandip D. Kamath
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD 4811, Australia; (S.K.); (E.B.J.); (R.N.); (T.R.); (A.C.T.); (S.D.K.)
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD 4811, Australia
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, The Royal Children’s Hospital, 50 Flemington Road, Parkville, VIC 3052, Australia
| | - Nicholas M. Wade
- ARC Research Hub for Advanced Prawn Breeding, Townsville, QLD 4811, Australia; (R.H.); (N.M.W.)
- CSIRO Agriculture and Food, Aquaculture Program, 306 Carmody Road, St Lucia, QLD 4067, Australia
| | - Dean R. Jerry
- ARC Research Hub for Advanced Prawn Breeding, Townsville, QLD 4811, Australia; (R.H.); (N.M.W.)
- Centre for Sustainable Tropical Fisheries and Aquaculture, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
- Tropical Futures Institute, James Cook University, 149 Sims Drive, Singapore 387380, Singapore
| | - Andreas L. Lopata
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD 4811, Australia; (S.K.); (E.B.J.); (R.N.); (T.R.); (A.C.T.); (S.D.K.)
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD 4811, Australia
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, The Royal Children’s Hospital, 50 Flemington Road, Parkville, VIC 3052, Australia
- Centre for Sustainable Tropical Fisheries and Aquaculture, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
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8
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Chinnappan R, Rahamn AA, AlZabn R, Kamath S, Lopata AL, Abu-Salah KM, Zourob M. Aptameric biosensor for the sensitive detection of major shrimp allergen, tropomyosin. Food Chem 2019; 314:126133. [PMID: 31978716 DOI: 10.1016/j.foodchem.2019.126133] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 12/23/2019] [Accepted: 12/26/2019] [Indexed: 01/01/2023]
Abstract
The development of a sensitive and rapid detection approach for allergens in various food matrices is essential to assist patients in managing their allergies. The most common methods used for allergen detection are based on immunoassays, PCR and mass spectrometry. However, all of them are very complex and time-consuming. Herein, an aptamer biosensor for the detection of the major shrimp allergen tropomyosin (TM) was developed. Graphene oxide (GO) was used as a platform for screening of the minimal-length aptamer sequence required for high-affinity target binding. A fluorescein dye labeled GO quenches the truncated aptamer by π-stacking interactions. After the addition of TM, the fluorescence was restored due to the competitive binding of the aptamer to GO. One of the truncated aptamers was found to bind to TM with four-fold higher affinity (30 nM) compared to the full-length aptamer (124 nM), with a limit of detection (LOD) of 2 nM. The aptamer-based sensor demonstrates the sensitive, selective, and specific detection of TM in 30 min. The performance of the sensor was confirmed using TM spiked chicken soup, resulting in a high percentage recovery (~97 ± 10%). The association of GO and labelled aptamer sensor platform has shown the rapid detection of TM in food, which is compared to other methods very sensitive, specific and performs in high throughput application.
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Affiliation(s)
- Raja Chinnappan
- Department of Chemistry, Alfaisal University, Al Zahrawi Street, Al Maather, Al Takhassusi Road, Riyadh 11533, Saudi Arabia
| | - Anas Abdel Rahamn
- Department of Genetics, King Faisal Specialist Hospital, and Research Center, Zahrawi Street, Al Maather, Riyadh 11211, Saudi Arabia; College of Medicine, Alfaisal University, Al Zahrawi Street, Al Maather, Al Takhassusi Road, Riyadh 11533, Saudi Arabia; Department of Chemistry, Memorial University of Newfound Land, St. John's, NL A1B 3X7, Canada
| | - Razan AlZabn
- Department of Chemistry, Alfaisal University, Al Zahrawi Street, Al Maather, Al Takhassusi Road, Riyadh 11533, Saudi Arabia
| | - Sandip Kamath
- College of Public Health, Medical, and Veterinary Sciences, Department of Molecular & Cell Biology, James Cook University, Townsville, QLD, Australia; Molecular Allergy Research Laboratory, Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD, Australia
| | - Andreas L Lopata
- College of Public Health, Medical, and Veterinary Sciences, Department of Molecular & Cell Biology, James Cook University, Townsville, QLD, Australia; Molecular Allergy Research Laboratory, Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD, Australia
| | - Khalid M Abu-Salah
- Department of Nanomedicine, King Abdullah International Medical Research Center/King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Riyadh 11481, Saudi Arabia
| | - Mohammed Zourob
- Department of Chemistry, Alfaisal University, Al Zahrawi Street, Al Maather, Al Takhassusi Road, Riyadh 11533, Saudi Arabia; Department of Genetics, King Faisal Specialist Hospital, and Research Center, Zahrawi Street, Al Maather, Riyadh 11211, Saudi Arabia.
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9
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Nugraha R, Kamath SD, Johnston E, Karnaneedi S, Ruethers T, Lopata AL. Conservation Analysis of B-Cell Allergen Epitopes to Predict Clinical Cross-Reactivity Between Shellfish and Inhalant Invertebrate Allergens. Front Immunol 2019; 10:2676. [PMID: 31803189 PMCID: PMC6877653 DOI: 10.3389/fimmu.2019.02676] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 10/30/2019] [Indexed: 02/05/2023] Open
Abstract
Understanding and predicting an individual's clinical cross-reactivity to related allergens is a key to better management, treatment and progression of novel therapeutics for food allergy. In food allergy, clinical cross-reactivity is observed in patients reacting to unexpected allergen sources containing the same allergenic protein or antibody binding patches (epitopes), often resulting in severe allergic reactions. Shellfish allergy affects up to 2% of the world population and persists for life in most patients. The diagnosis of shellfish allergy is however often challenging due to reported clinical cross-reactivity to other invertebrates including mites and cockroaches. Prediction of cross-reactivity can be achieved utilizing an in-depth analysis of a few selected IgE-antibody binding epitopes. We combined available experimentally proven IgE-binding epitopes with informatics-based cross-reactivity prediction modeling to assist in the identification of clinical cross-reactive biomarkers on shellfish allergens. This knowledge can be translated into prevention and treatment of allergic diseases. To overcome the problem of predicting IgE cross-reactivity of shellfish allergens we developed an epitope conservation model using IgE binding epitopes available in the Immune Epitope Database and Analysis Resource (http://www.iedb.org/). We applied this method to a set of four different shrimp allergens, and successfully identified several non-cross-reactive as well as cross-reactive epitopes, which have been experimentally established to cross-react. Based on these findings we suggest that this method can be used for advanced component-resolved-diagnosis to identify patients sensitized to a specific shellfish group and distinguish from patients with extensive cross-reactivity to ingested and inhaled allergens from invertebrate sources.
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Affiliation(s)
- Roni Nugraha
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD, Australia.,Department of Molecular and Cell Biology, College of Public Health, Medical and Veterinary Science, James Cook University, Townsville, QLD, Australia.,Department of Aquatic Product Technology, Bogor Agricultural University, Bogor, Indonesia
| | - Sandip D Kamath
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD, Australia.,Department of Molecular and Cell Biology, College of Public Health, Medical and Veterinary Science, James Cook University, Townsville, QLD, Australia.,Centre for Food and Allergy Research, Murdoch Children's Research Institute, Melbourne, VIC, Australia
| | - Elecia Johnston
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD, Australia.,Department of Molecular and Cell Biology, College of Public Health, Medical and Veterinary Science, James Cook University, Townsville, QLD, Australia
| | - Shaymaviswanathan Karnaneedi
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD, Australia.,Department of Molecular and Cell Biology, College of Public Health, Medical and Veterinary Science, James Cook University, Townsville, QLD, Australia.,Centre for Food and Allergy Research, Murdoch Children's Research Institute, Melbourne, VIC, Australia
| | - Thimo Ruethers
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD, Australia.,Department of Molecular and Cell Biology, College of Public Health, Medical and Veterinary Science, James Cook University, Townsville, QLD, Australia.,Centre for Food and Allergy Research, Murdoch Children's Research Institute, Melbourne, VIC, Australia
| | - Andreas L Lopata
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD, Australia.,Department of Molecular and Cell Biology, College of Public Health, Medical and Veterinary Science, James Cook University, Townsville, QLD, Australia.,Centre for Food and Allergy Research, Murdoch Children's Research Institute, Melbourne, VIC, Australia
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10
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Li MS, Xia F, Liu M, He XR, Chen YY, Bai TL, Chen GX, Wang L, Cao MJ, Liu GM. Cloning, Expression, and Epitope Identification of Myosin Light Chain 1: An Allergen in Mud Crab. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:10458-10469. [PMID: 31469568 DOI: 10.1021/acs.jafc.9b04294] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Mud crab (Scylla paramamosain) is a commonly consumed seafood as a result of its high nutritional value; however, it is associated with food allergy. The current understanding of crab allergens remains insufficient. In the present study, an 18 kDa protein was purified from crab muscle and confirmed to be myosin light chain 1 (MLC1) by matrix-assisted laser desorption/ionization-tandem time-of-flight mass spectrometry. Total RNA was isolated and amplified to obtain a MLC1 open reading frame of 462 bp, encoding 154 amino acids. A structural analysis revealed that recombinant MLC1 (rMLC1) expressed in Escherichia coli contained α-helix and random coil. Moreover, rMLC1 displayed strong immunoactivity by dot blot and a basophil activation test. Furthermore, seven allergenic epitopes of MLC1 were predicted, and five critical epitope regions were identified by an inhibition enzyme-linked immunosorbent assay and human mast cell degranulation assay. This comprehensive research of an allergen helps to conduct component-resolved diagnoses and immunotherapies related to crab allergies.
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Affiliation(s)
- Meng-Si Li
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources , Jimei University , Xiamen , Fujian 361021 , People's Republic of China
| | - Fei Xia
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources , Jimei University , Xiamen , Fujian 361021 , People's Republic of China
| | - Meng Liu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources , Jimei University , Xiamen , Fujian 361021 , People's Republic of China
| | - Xin-Rong He
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources , Jimei University , Xiamen , Fujian 361021 , People's Republic of China
| | - Yi-Yu Chen
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources , Jimei University , Xiamen , Fujian 361021 , People's Republic of China
| | - Tian-Liang Bai
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources , Jimei University , Xiamen , Fujian 361021 , People's Republic of China
| | - Gui-Xia Chen
- Women and Children's Hospital Affiliated to Xiamen University , Xiamen , Fujian 361003 , People's Republic of China
| | - Li Wang
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources , Jimei University , Xiamen , Fujian 361021 , People's Republic of China
| | - Min-Jie Cao
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources , Jimei University , Xiamen , Fujian 361021 , People's Republic of China
| | - Guang-Ming Liu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources , Jimei University , Xiamen , Fujian 361021 , People's Republic of China
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11
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Johnston EB, Kamath SD, Iyer SP, Pratap K, Karnaneedi S, Taki AC, Nugraha R, Schaeffer PM, Rolland JM, O’Hehir RE, Lopata AL. Defining specific allergens for improved component-resolved diagnosis of shrimp allergy in adults. Mol Immunol 2019; 112:330-337. [DOI: 10.1016/j.molimm.2019.05.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 05/18/2019] [Accepted: 05/24/2019] [Indexed: 12/18/2022]
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12
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Tong WS, Yuen AW, Wai CY, Leung NY, Chu KH, Leung PS. Diagnosis of fish and shellfish allergies. J Asthma Allergy 2018; 11:247-260. [PMID: 30323632 PMCID: PMC6181092 DOI: 10.2147/jaa.s142476] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Seafood allergy is a hypersensitive disorder with increasing prevalence worldwide. Effective and accurate diagnostic workup for seafood allergy is essential for clinicians and patients. Parvalbumin and tropomyosin are the most common fish and shellfish allergens, respectively. The diagnosis of seafood allergies is complicated by cross-reactivity among fish allergens and between shellfish allergens and other arthropods. Current clinical diagnosis of seafood allergy is a complex algorithm that includes clinical assessment, skin prick test, specific IgE measurement, and oral food challenges. Emerging diagnostic strategies, such as component-resolved diagnosis (CRD), which uses single allergenic components for assessment of epitope specific IgE, can provide critical information in predicting individualized sensitization patterns and risk of severe allergic reactions. Further understanding of the molecular identities and characteristics of seafood allergens can advance the development of CRD and lead to more precise diagnosis and improved clinical management of seafood allergies.
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Affiliation(s)
- Wai Sze Tong
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, SAR, China
| | - Agatha Wt Yuen
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, SAR, China
| | - Christine Yy Wai
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, SAR, China,
| | - Nicki Yh Leung
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, SAR, China,
| | - Ka Hou Chu
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, SAR, China
| | - Patrick Sc Leung
- Division of Rheumatology, Allergy and Clinical Immunology, School of Medicine, University of California Davis, Davis, CA, USA,
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13
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Seafood allergy: A comprehensive review of fish and shellfish allergens. Mol Immunol 2018; 100:28-57. [PMID: 29858102 DOI: 10.1016/j.molimm.2018.04.008] [Citation(s) in RCA: 183] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 04/11/2018] [Accepted: 04/16/2018] [Indexed: 11/23/2022]
Abstract
Seafood refers to several distinct groups of edible aquatic animals including fish, crustacean, and mollusc. The two invertebrate groups of crustacean and mollusc are, for culinary reasons, often combined as shellfish but belong to two very different phyla. The evolutionary and taxonomic diversity of the various consumed seafood species poses a challenge in the identification and characterisation of the major and minor allergens critical for reliable diagnostics and therapeutic treatments. Many allergenic proteins are very different between these groups; however, some pan-allergens, including parvalbumin, tropomyosin and arginine kinase, seem to induce immunological and clinical cross-reactivity. This extensive review details the advances in the bio-molecular characterisation of 20 allergenic proteins within the three distinct seafood groups; fish, crustacean and molluscs. Furthermore, the structural and biochemical properties of the major allergens are described to highlight the immunological and subsequent clinical cross-reactivities. A comprehensive list of purified and recombinant allergens is provided, and the applications of component-resolved diagnostics and current therapeutic developments are discussed.
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14
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Effect of thermal processing on T cell reactivity of shellfish allergens - Discordance with IgE reactivity. PLoS One 2017; 12:e0173549. [PMID: 28273149 PMCID: PMC5342306 DOI: 10.1371/journal.pone.0173549] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 02/23/2017] [Indexed: 12/26/2022] Open
Abstract
Crustacean allergy is a major cause of food-induced anaphylaxis. We showed previously that heating increases IgE reactivity of crustacean allergens. Here we investigate the effects of thermal processing of crustacean extracts on cellular immune reactivity. Raw and cooked black tiger prawn, banana prawn, mud crab and blue swimmer crab extracts were prepared and IgE reactivity assessed by ELISA. Mass spectrometry revealed a mix of several allergens in the raw mud crab extract but predominant heat-stable tropomyosin in the cooked extract. PBMC from crustacean-allergic and non-atopic control subjects were cultured with the crab and prawn extracts and proliferation of lymphocyte subsets was analysed by CFSE labelling and flow cytometry. Effector responses were assessed by intracellular IL-4 and IFN-γ, and regulatory T (CD4+CD25+CD127loFoxp3+) cell proportions in cultures were also compared by flow cytometry. For each crustacean species, the cooked extract had greater IgE reactivity than the raw (mud crab p<0.05, other species p<0.01). In contrast, there was a trend for lower PBMC proliferative responses to cooked compared with raw extracts. In crustacean-stimulated PBMC cultures, dividing CD4+ and CD56+ lymphocytes showed higher IL-4+/IFN-γ+ ratios for crustacean-allergic subjects than for non-atopics (p<0.01), but there was no significant difference between raw and cooked extracts. The percentage IL-4+ of dividing CD4+ cells correlated with total and allergen-specific IgE levels (prawns p<0.01, crabs p<0.05). Regulatory T cell proportions were lower in cultures stimulated with cooked compared with raw extracts (mud crab p<0.001, banana prawn p<0.05). In conclusion, cooking did not substantially alter overall T cell proliferative or cytokine reactivity of crustacean extracts, but decreased induction of Tregs. In contrast, IgE reactivity of cooked extracts was increased markedly. These novel findings have important implications for improved diagnostics, managing crustacean allergy and development of future therapeutics. Assessment of individual allergen T cell reactivity is required.
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15
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Liu T, Navarro S, Lopata AL. Current advances of murine models for food allergy. Mol Immunol 2016; 70:104-17. [DOI: 10.1016/j.molimm.2015.11.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 11/21/2015] [Accepted: 11/28/2015] [Indexed: 12/16/2022]
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