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da Silva ES, de Santana MBR, Silveira EF, Torres RT, Silva RC, Fernandes AMS, Belitardo EMMDA, Garcés LFS, Santiago LF, Urrego JR, Vilas-Bôas DS, de Freitas LAR, Zakzuk J, Pacheco LGC, Cruz ÁA, Ferreira F, Cooper P, Caraballo L, Pinheiro CDS, Alcantara-Neves NM. The hybrid protein BTH2 suppresses allergic airway inflammation in a murine model of HDM-specific immunotherapy. Clin Exp Allergy 2023; 53:821-832. [PMID: 36779555 DOI: 10.1111/cea.14293] [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: 10/21/2022] [Revised: 01/22/2023] [Accepted: 01/28/2023] [Indexed: 02/14/2023]
Abstract
BACKGROUND Allergen-specific immunotherapy (AIT) is the only disease-modifying treatment approach to change disease-causing allergens. Hypoallergenic derivatives show promise as potential therapeutics, amongst which BTH2 was designed to induce tolerance against Blomia tropicalis allergy. Our aim was to investigate the hypoallergenicity and immunoregulatory activity of BTH2 in vitro and its therapeutic potential in a mouse model of AIT. METHODS Recombinant Blo t 5 and Blo t 21 allergens and their hybrid derivatives (BTH1 and BTH2) were expressed and purified. IgE binding capacity was tested by ELISA using sera from Brazilian, Colombian, and Ecuadorian subjects. Secretion of cytokines in supernatants from human cell cultures was measured following stimulation with the four recombinants and controls. The capacity of BTH2 to ameliorate allergic airway inflammation induced by B. tropicalis extract was evaluated in a murine model of AIT. RESULTS rBlo t 5 and rBlo t 21 were identified as major allergens in Latin American patients, and BTH2 had the lowest IgE binding. In vitro stimulation of human cells induced greater levels of IL-10 and IFN-γ and reduced the secretion of Th2 cytokines. BTH2 ameliorated allergic airway inflammation in B. tropicalis-challenged A/J mice, as evidenced by the histopathological and humoral biomarkers: decreased Th2 cytokines and cellular infiltration (especially eosinophils), lower activity of eosinophil peroxidase, an increase in IgG blocking antibodies and strong reduction of mucus production by goblet cells. CONCLUSIONS Our study shows that BTH2 represents a promising candidate for the treatment of B. tropicalis allergy with hypoallergenic, immune regulatory and therapeutic properties. Further pre-clinical studies are required in murine models of chronic asthma to further address the efficacy and safety of BTH2 as a vaccine against B. tropicalis-induced allergy.
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Affiliation(s)
- Eduardo Santos da Silva
- Laboratory of Allergology and Acarology (LAA), Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
- Post-Graduate Program in Biotechnology of the Northeast Biotechnology Network (RENORBIO), Maceió, Brazil
| | - Marina Borges Rabelo de Santana
- Laboratory of Allergology and Acarology (LAA), Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
- Post-Graduate Program in Immunology, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
| | - Elisânia Fontes Silveira
- Laboratory of Allergology and Acarology (LAA), Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
| | - Rogério Tanan Torres
- Laboratory of Allergology and Acarology (LAA), Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
| | - Raphael Chagas Silva
- Laboratory of Allergology and Acarology (LAA), Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
- Post-Graduate Program in Immunology, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
| | | | - Emília Maria Medeiros de Andrade Belitardo
- Laboratory of Allergology and Acarology (LAA), Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
- Post-Graduate Program in Immunology, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FioCruz), Salvador, Brazil
| | - Luis Fabián Salazar Garcés
- Laboratory of Allergology and Acarology (LAA), Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
- Post-Graduate Program in Immunology, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
- Faculty of Health Sciences, Technical University of Ambato, Ambato, Ecuador
| | - Leonardo Freire Santiago
- Laboratory of Allergology and Acarology (LAA), Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
| | | | - Deise Souza Vilas-Bôas
- Post-Graduate Program in Immunology, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
- Laboratory of Histotechnology, Department of Biomorphology, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
| | - Luiz Antônio Rodrigues de Freitas
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FioCruz), Salvador, Brazil
- Department of Pathology of the School of Medicine, Federal University of Bahia, Salvador, Brazil
| | - Josefina Zakzuk
- Institute of Immunological Research, University of Cartagena, Cartagena, Colombia
| | - Luis Gustavo Carvalho Pacheco
- Laboratory of Allergology and Acarology (LAA), Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
| | | | - Fatima Ferreira
- Department of Biosciences, Paris-Lodron University of Salzburg, Salzburg, Austria
| | - Philip Cooper
- Institute of Infection and Immunity, St George's University of London, London, UK
- School of Medicine, International University of Ecuador, Quito, Ecuador
| | - Luis Caraballo
- Institute of Immunological Research, University of Cartagena, Cartagena, Colombia
| | - Carina da Silva Pinheiro
- Laboratory of Allergology and Acarology (LAA), Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
- Post-Graduate Program in Immunology, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
| | - Neuza Maria Alcantara-Neves
- Laboratory of Allergology and Acarology (LAA), Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
- Post-Graduate Program in Biotechnology of the Northeast Biotechnology Network (RENORBIO), Maceió, Brazil
- Post-Graduate Program in Immunology, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
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Pei Y, Xiao Z, Wei S, Peng M, Luo C, Wang D. Studies on HBcAg-rBlo t 5-21 Fusion Protein Vaccine That Alleviates Blomia tropicalis Airway Inflammation. J Inflamm Res 2022; 15:6343-6355. [DOI: 10.2147/jir.s380526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 11/06/2022] [Indexed: 11/19/2022] Open
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Shokouhi Shoormasti R, Rafaiani C, Fazlollahi MR, Kazemnejad A, Mahloojirad M, Moslemi M, Abbasi JM, Moin M, Pourpak Z, Mari A. Molecular Profile of Specific IgE to Allergenic Components in Allergic Adults Using Allergen Nano-Bead Array. Clin Exp Allergy 2022; 52:942-953. [PMID: 35174570 DOI: 10.1111/cea.14113] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 01/26/2022] [Accepted: 01/29/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND An increasing interest in the field of molecular diagnosis of allergy has been developed in recent years and it goes to be as the routine in-vitro protocol in allergy diagnosis. Friendly Allergen Nano-bead Array (FABER) is a new multiplex assay for the evaluation of specific IgE against 244 allergens including whole extracts and allergenic molecules. The research intended to assess the pattern of IgE sensitization to allergenic components of allergens in allergic adults using FABER 244. METHODS Sixty patients with allergic diseases entered this cross-sectional study. Specific IgE to 122 whole allergens extracts and 122 allergenic components was assessed using an allergen nano-bead array (FABER) for all patients. This test includes inhalant and food allergens. RESULTS Thirty-seven patients were male (61.7%). The mean (SD) age of patients was 30.73(±6.87) years. As the allergen nano-bead array results showed, Lolium perenne (63.3%), Phleum pretense (60%), and Platanus acerifolia (51.7%) were considered as the most common IgE-sensitizations to the aeroallergen extracts. Moreover, Lol p 1, Phl p 1.0102, and Cup a 1 were found as the most frequent allergenic components in our allergic patients. Among protein families, CCD bearing proteins, expansin, cysteine protease, and profilin families illustrated the highest allergic sensitization. CONCLUSIONS The results of the present study demonstrated that despite the higher prevalence of sensitization to Salsola kali (47.2%) using extract-based assays in the previous phase of this research, allergenic components of grasses (Lol p 1, Phl p 1.0102), Cup a 1 as well as Sal k1 as the major components of Cupressuss arizonica and Salsola kali showed the higher sensitization, respectively in adults' allergic patients using FABER test.
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Affiliation(s)
| | - Chiara Rafaiani
- Associated Centers for Molecular Allergology, CAAM, Rome, Italy
| | - Mohammad Reza Fazlollahi
- Immunology, Asthma, and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Anoshirvan Kazemnejad
- Department of Biostatistics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Maryam Mahloojirad
- Immunology, Asthma, and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Majid Moslemi
- Blood Transfusion Organization Research Center, Tehran, Iran
| | - Javid Morad Abbasi
- Asthma and Allergy Center, Tehran Medical Sciences Branch of Academic Center for Education, Culture and Research (ACECR), Tehran, Iran
| | - Mostafa Moin
- Immunology, Asthma, and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Pourpak
- Immunology, Asthma, and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Adriano Mari
- Associated Centers for Molecular Allergology, CAAM, Rome, Italy
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Kim EG, Leem JS, Baek SM, Kim HR, Kim KW, Kim MN, Sohn MH. Interleukin-18 Receptor α Modulates the T Cell Response in Food Allergy. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2022; 14:424-438. [PMID: 35837825 PMCID: PMC9293601 DOI: 10.4168/aair.2022.14.4.424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/28/2022] [Accepted: 05/07/2022] [Indexed: 11/20/2022]
Abstract
Purpose Methods Results Conclusions
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Affiliation(s)
- Eun Gyul Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Institute for Immunology and Immunological Diseases, Severance Biomedical Science Institute, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
| | - Ji Su Leem
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Institute for Immunology and Immunological Diseases, Severance Biomedical Science Institute, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
| | - Seung Min Baek
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Institute for Immunology and Immunological Diseases, Severance Biomedical Science Institute, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
| | - Hye Rin Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Institute for Immunology and Immunological Diseases, Severance Biomedical Science Institute, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung Won Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Institute for Immunology and Immunological Diseases, Severance Biomedical Science Institute, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
| | - Mi Na Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Institute for Immunology and Immunological Diseases, Severance Biomedical Science Institute, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
| | - Myung Hyun Sohn
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Institute for Immunology and Immunological Diseases, Severance Biomedical Science Institute, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
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Miquelianin Inhibits Allergic Responses in Mice by Suppressing CD4 + T Cell Proliferation. Antioxidants (Basel) 2021; 10:antiox10071120. [PMID: 34356353 PMCID: PMC8301087 DOI: 10.3390/antiox10071120] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/05/2021] [Accepted: 07/09/2021] [Indexed: 02/06/2023] Open
Abstract
Allergic diseases, including atopic dermatitis (AD), induce type 2 helper T (Th2) cell-dominant immune responses. Miquelianin (quercetin 3-O-glucuronide, MQL) is an active compound in Rosae multiflorae fructus extract with anti-allergic properties. Here, we investigate the anti-allergic effects of MQL in an ovalbumin (OVA)-induced Th2-dominant mouse model and the associated mechanisms. Oral MQL suppressed cytokine and IL-2 production and proliferation of Th2 cells and upregulated heme oxygenase-1 (HO-1) in splenocytes. Ex vivo MQL suppressed Th1- and Th2-related immune responses by inhibiting CD4+ T cell proliferation, and upregulated HO-1 in CD4+ T cells by activating C-Raf-ERK1/2-Nrf2 pathway via induction of reactive oxygen species generation. In a trimellitic anhydride-induced AD-like mouse model, both topical and oral MQL ameliorated AD symptoms by suppressing Th2 immune responses. Our results suggest that MQL is a potential therapeutic agent for CD4+ T cell-mediated diseases, including allergic diseases.
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Gómez-Esquivel ML, Guidos-Fogelbach GA, Rojo-Gutiérrez MI, Mellado-Abrego J, Bermejo-Guevara MA, Castillo-Narváez G, Velázquez-Sámano G, Velasco-Medina AA, Moya-Almonte MG, Vallejos-Pereira CM, López-Hidalgo M, Godínez-Victoria M, Reyes-López CA. Identification of an allergenic calmodulin from Amaranthus palmeri pollen. Mol Immunol 2021; 132:150-156. [PMID: 33592570 DOI: 10.1016/j.molimm.2021.01.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 01/05/2021] [Accepted: 01/30/2021] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Pollens are an important source of allergens that trigger rhinitis or asthma. The allergenic extracts of pollens used to diagnose and treat allergies contain different allergenic antigens. Isolated allergenic proteins are employed in in vitro assays, skin tests and allergenic-specific immunotherapy. Calcium-binding allergens are clinically relevant antigens, and their allergenicity can be affected by Ca2+ binding. In this work, a calmodulin was identified as an allergen from Amaranthus palmeri pollen, an important source of pollinosis in Europe, Asia and North America. MATERIALS AND METHODS Allergenic calmodulin from A. palmeri pollen was isolated by size-exclusion chromatography and reverse-phase chromatography and identified by mass spectrometry. Sensitization to isolated calmodulin was evaluated by skin prick tests in patients with allergy to A. palmeri pollen. RESULTS Size-exclusion chromatography yielded two fractions that were recognized by the IgE of patients allergic to A. palmeri pollen. Mass spectrometry analysis of the fractions from reverse-phase chromatography showed peptide sequences that identified a calmodulin. Skin prick tests showed that the isolated calmodulin was recognized by 56% of patients allergic to A. palmeri pollen. CONCLUSION A. palmeri pollen calmodulin could be a clinically relevant allergen in patients sensitized to this source.
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Affiliation(s)
- Mónica Luz Gómez-Esquivel
- Sección De Estudios De Posgrado e Investigación, ESM, Instituto Politécnico Nacional, Plan De San Luis y Díaz Mirón s/n, Col. Casco De Santo Tomas, Alcaldía Miguel Hidalgo, C.P. 11340, Ciudad De México, Mexico; Sección de Estudios de Posgrado e Investigación, ENMH, Instituto Politécnico Nacional, Guillermo Massieu Helguera No. 239, Col. Frac. "La Escalera", Ticomán, Gustavo A. Madero, C.P. 07320, Ciudad De México, Mexico
| | - Guillermo Arturo Guidos-Fogelbach
- Sección de Estudios de Posgrado e Investigación, ENMH, Instituto Politécnico Nacional, Guillermo Massieu Helguera No. 239, Col. Frac. "La Escalera", Ticomán, Gustavo A. Madero, C.P. 07320, Ciudad De México, Mexico
| | - María Isabel Rojo-Gutiérrez
- Servicio de Alergia e Inmunología, Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Col. Magdalena De Las Salinas, Gustavo A. Madero, C.P. 07760, Ciudad De México, Mexico
| | - Jaime Mellado-Abrego
- Servicio de Alergia e Inmunología, Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Col. Magdalena De Las Salinas, Gustavo A. Madero, C.P. 07760, Ciudad De México, Mexico
| | - Mario Alberto Bermejo-Guevara
- Servicio de Alergia e Inmunología, Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Col. Magdalena De Las Salinas, Gustavo A. Madero, C.P. 07760, Ciudad De México, Mexico
| | - Gloria Castillo-Narváez
- Servicio de Alergia e Inmunología, Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Col. Magdalena De Las Salinas, Gustavo A. Madero, C.P. 07760, Ciudad De México, Mexico
| | - Guillermo Velázquez-Sámano
- Servicio De Alergia e Inmunología Clínica, Hospital General De México, Dr. Balmis No.148 Col. Doctores, Cuauhtémoc, C.P. 06720, Ciudad De México, Mexico
| | - Andrea Aida Velasco-Medina
- Servicio De Alergia e Inmunología Clínica, Hospital General De México, Dr. Balmis No.148 Col. Doctores, Cuauhtémoc, C.P. 06720, Ciudad De México, Mexico
| | - Margaret Gissett Moya-Almonte
- Servicio De Alergia e Inmunología Clínica, Hospital General De México, Dr. Balmis No.148 Col. Doctores, Cuauhtémoc, C.P. 06720, Ciudad De México, Mexico
| | - Carla Marcela Vallejos-Pereira
- Servicio De Alergia e Inmunología Clínica, Hospital General De México, Dr. Balmis No.148 Col. Doctores, Cuauhtémoc, C.P. 06720, Ciudad De México, Mexico
| | - Marisol López-Hidalgo
- Sección de Estudios de Posgrado e Investigación, ENMH, Instituto Politécnico Nacional, Guillermo Massieu Helguera No. 239, Col. Frac. "La Escalera", Ticomán, Gustavo A. Madero, C.P. 07320, Ciudad De México, Mexico
| | - Marycarmen Godínez-Victoria
- Sección De Estudios De Posgrado e Investigación, ESM, Instituto Politécnico Nacional, Plan De San Luis y Díaz Mirón s/n, Col. Casco De Santo Tomas, Alcaldía Miguel Hidalgo, C.P. 11340, Ciudad De México, Mexico
| | - César A Reyes-López
- Sección de Estudios de Posgrado e Investigación, ENMH, Instituto Politécnico Nacional, Guillermo Massieu Helguera No. 239, Col. Frac. "La Escalera", Ticomán, Gustavo A. Madero, C.P. 07320, Ciudad De México, Mexico.
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Chen H, Li J, Cheng L, Gao Z, Lin X, Zhu R, Yang L, Tao A, Hong H, Tang W, Guo Y, Huang H, Sun J, Lai H, Lei C, Liu G, Xiang L, Chen Z, Ma H, Chan AWM, Hao C, Sun B. China Consensus Document on Allergy Diagnostics. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2021; 13:177-205. [PMID: 33474855 PMCID: PMC7840865 DOI: 10.4168/aair.2021.13.2.177] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 08/14/2020] [Accepted: 08/29/2020] [Indexed: 01/22/2023]
Abstract
The prevalence of allergic diseases has increased dramatically in recent years in China, affecting the quality of life in 40% of the population. The identification of allergens is the key to the diagnosis of allergic diseases. Presently, several methods of allergy diagnostics are available in China, but they have not been standardized. Additionally, cross-sensitization and co-sensitization make allergy diagnostics even more complicated. Based on 4 aspects of allergic disease (mechanism, diagnosis procedures, allergen detection in vivo and in vitro as well as the distribution map of the most important airborne allergens in China) and by referring to the consensus of the European Society of Allergy and Clinical Immunology, the World Allergy Organization, and the important literature on allergy diagnostics in China in recent years, we drafted this consensus of allergy diagnostics with Chinese characteristics. It aims to standardize the diagnostic methods of allergens and provides a reference for health care givers. The current document was prepared by a panel of experts from the main stream of professional allergy associations in China.
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Affiliation(s)
- Hao Chen
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jing Li
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Lei Cheng
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Zhongshan Gao
- Allergy Research Center, Zhejiang University, Hangzhou, China
| | - Xiaoping Lin
- Department of Allergy, Northern Theater General Hospital, Shenyang, China
| | - Rongfei Zhu
- Department of Allergy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lin Yang
- Department of Allergy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ailin Tao
- Department of Allergy, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.,The State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Haiyu Hong
- Allergy Center, Department of Otorhinolaryngology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Wei Tang
- Department of Pulmonary and Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yinshi Guo
- Department of Allergy and Immunology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Huaiqiu Huang
- Department of Dermatology and Venereology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jinlyu Sun
- Department of Allergy, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases, Beijing, China
| | - He Lai
- Department of Allergy, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.,The State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Cheng Lei
- Department of Pediatrics, Kiang Wu Hospital, Macau, China
| | - Guanghui Liu
- Department of Allergy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department of Allergy, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Li Xiang
- Department of Allergy, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Zhuanggui Chen
- Department of Pediatrics and Department of Allergy, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Han Ma
- Department of Dermatology and Venereology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | | | - Chuangli Hao
- Department of Respirology, Children's Hospital, Soochow University, Suzhou, China.
| | - Baoqing Sun
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.
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da Silva ES, Aglas L, Pinheiro CS, de Andrade Belitardo EMM, Silveira EF, Huber S, Torres RT, Wallner M, Briza P, Lackner P, Laimer J, Pacheco LGC, Cruz ÁA, Alcântara-Neves NM, Ferreira F. A hybrid of two major Blomia tropicalis allergens as an allergy vaccine candidate. Clin Exp Allergy 2020; 50:835-847. [PMID: 32314444 PMCID: PMC7384089 DOI: 10.1111/cea.13611] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/27/2020] [Accepted: 04/07/2020] [Indexed: 12/21/2022]
Abstract
Introduction Allergen‐specific immunotherapy (AIT) represents a curative approach for treating allergies. In the tropical and subtropical regions of the world, Blomia tropicalis (Blo t 5 and Blo t 21) is the likely dominant source of indoor allergens. Aim To generate a hypoallergenic Blo t 5/Blo t 21 hybrid molecule that can treat allergies caused by B tropicalis. Methods Using in silico design of B tropicalis hybrid proteins, we chose two hybrid proteins for heterologous expression. Wild‐type Blo t 5/Blo t 21 hybrid molecule and a hypoallergenic version, termed BTH1 and BTH2, respectively, were purified by ion exchange and size exclusion chromatography and characterized by physicochemical, as well as in vitro and in vivo immunological, experiments. Results BTH1, BTH2 and the parental allergens were purified to homogeneity and characterized in detail. BTH2 displayed the lowest IgE reactivity that induced basophil degranulation using sera from allergic rhinitis and asthmatic patients. BTH2 essentially presented the same endolysosomal degradation pattern as the shortened rBlo t 5 and showed a higher resistance towards degradation than the full‐length Blo t 5. In vivo immunization of mice with BTH2 led to the production of IgG antibodies that competed with human IgE for allergen binding. Stimulation of splenocytes from BTH2‐immunized mice produced higher levels of IL‐10 and decreased secretion of IL‐4 and IL‐5. In addition, BTH2 stimulated T‐cell proliferation in PBMCs isolated from allergic patients, with secretion of higher levels of IL‐10 and lower levels of IL‐5 and IL‐13, when compared to parental allergens. Conclusions and Clinical Relevance BTH2 is a promising hybrid vaccine candidate for immunotherapy of Blomia allergy. However, further pre‐clinical studies addressing its efficacy and safety are needed.
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Affiliation(s)
- Eduardo Santos da Silva
- Laboratório de Alergia e Acarologia, Departamento de Ciências da Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil.,Programa de Pós-Graduação em Biotecnologia da Rede Nordeste de Biotecnologia (RENORBIO), Natal, Brazil.,Department of Biosciences, University of Salzburg, Salzburg, Austria
| | - Lorenz Aglas
- Department of Biosciences, University of Salzburg, Salzburg, Austria
| | - Carina Silva Pinheiro
- Laboratório de Alergia e Acarologia, Departamento de Ciências da Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Emília M M de Andrade Belitardo
- Laboratório de Alergia e Acarologia, Departamento de Ciências da Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil.,Programa de Pós-Graduação em Imunologia da Universidade Federal da Bahia, Salvador, Brazil
| | - Elisânia Fontes Silveira
- Laboratório de Alergia e Acarologia, Departamento de Ciências da Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Sara Huber
- Department of Biosciences, University of Salzburg, Salzburg, Austria
| | - Rogério Tanan Torres
- Laboratório de Alergia e Acarologia, Departamento de Ciências da Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Michael Wallner
- Department of Biosciences, University of Salzburg, Salzburg, Austria
| | - Peter Briza
- Department of Biosciences, University of Salzburg, Salzburg, Austria
| | - Peter Lackner
- Department of Biosciences, University of Salzburg, Salzburg, Austria
| | - Josef Laimer
- Department of Biosciences, University of Salzburg, Salzburg, Austria
| | - Luis Gustavo C Pacheco
- Laboratório de Alergia e Acarologia, Departamento de Ciências da Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Álvaro A Cruz
- Núcleo de Excelência de Asma da, Universidade Federal da Bahia, Salvador, Brazil
| | - Neuza Maria Alcântara-Neves
- Laboratório de Alergia e Acarologia, Departamento de Ciências da Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil.,Programa de Pós-Graduação em Biotecnologia da Rede Nordeste de Biotecnologia (RENORBIO), Natal, Brazil.,Programa de Pós-Graduação em Imunologia da Universidade Federal da Bahia, Salvador, Brazil
| | - Fatima Ferreira
- Department of Biosciences, University of Salzburg, Salzburg, Austria
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9
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Ferrari E, Corsini R, Burastero SE, Tanfani F, Spisni A. The allergen Mus m 1.0102: Cysteine residues and molecular allergology. Mol Immunol 2020; 120:1-12. [PMID: 32044430 DOI: 10.1016/j.molimm.2020.01.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 01/23/2020] [Accepted: 01/29/2020] [Indexed: 12/13/2022]
Abstract
Mus m 1.0102 is a member of the mouse Major Urinary Protein family, belonging to the Lipocalins superfamily. Major Urinary Proteins (MUPs) are characterized by highly conserved structural motifs. These include a disulphide bond, involved in protein oxidative folding and protein structure stabilization, and a free cysteine residue, substituted by serine only in the pheromonal protein Darcin (MUP20). The free cysteine is recognized as responsible for the onset of inter- or intramolecular thiol/disulphide exchange, an event that favours protein aggregation. Here we show that the substitution of selected cysteine residues modulates Mus m 1.0102 protein folding, fold stability and unfolding reversibility, while maintaining its allergenic potency. Recombinant allergens used for immunotherapy or employed in allergy diagnostic kits require, as essential features, conformational stability, sample homogeneity and proper immunogenicity. In this perspective, recombinant Mus m 1.0102 might appear reasonably adequate as lead molecule because of its allergenic potential and thermal stability. However, its modest resistance to aggregation renders the protein unsuitable for pharmacological preparations. Point mutation is considered a winning strategy. We report that, among the tested mutants, C138A mutant acquires a structure more resistant to thermal stress and less prone to aggregation, two events that act positively on the protein shelf life. Those features make that MUP variant an attractive lead molecule for the development of a diagnostic kit and/or a vaccine.
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Affiliation(s)
- Elena Ferrari
- Dept. Medicine and Surgery, University of Parma, via Gramsci 14, 43126, Parma, Italy.
| | - Romina Corsini
- Dept. Medicine and Surgery, University of Parma, via Gramsci 14, 43126, Parma, Italy.
| | - Samuele E Burastero
- Div. Immunology, IRCCS San Raffaele, Via Olgettina 60, 20132, Milano, Italy.
| | - Fabio Tanfani
- Dept. Life and Environmental Sciences, Marche Polytechnic University, via Brecce Bianche, 60131, Ancona, Italy.
| | - Alberto Spisni
- Dept. Medicine and Surgery, University of Parma, via Gramsci 14, 43126, Parma, Italy.
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10
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Silva ESD, Pinheiro CS, Pacheco LGC, Alcantara-Neves NM. Dermatophagoides spp. hypoallergens design: what has been achieved so far? Expert Opin Ther Pat 2020; 30:163-177. [PMID: 31913726 DOI: 10.1080/13543776.2020.1712360] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Introduction: Allergic illnesses are one of the most prevalent immunological disorders worldwide and house dust mites are important triggers of these diseases. Allergen-specific immunotherapy (AIT) is an alternative treatment to pharmacotherapy and among its technologies, recombinant hypoallergenic derivatives have shown promising features, turn them into safer and more efficient allergy vaccines.Areas covered: Patents and scientific publications referring to advances in the design of Dermatophagoides spp. hypoallergenic molecules. Data were obtained from the Espacenet® and PubMed websites, using different key terms, advanced tools and Boolean operators for searches. The retrieved data were then descriptively analyzed, taking into consideration clinical targets, geographical, temporal, collaborative, and different classification aspects of the productions.Expert opinion: Joint advances of molecular biology, genetic engineering, and bioinformatics technologies led to progresses in the design of Dermatophagoides spp. hypoallergenic derivatives. Collaborative networks seem to be an interesting way not only to improve technologies in AIT but also to boost the number of patents, publications, and grants for researchers. The observed trend for the use of hypoallergenic hybrid molecules was a fundamental AIT advance and this type of molecule appears to be a more attractive product for companies and more convenient, efficient, and safer allergy immunotherapy for patients.
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Affiliation(s)
- Eduardo Santos da Silva
- Laboratório de Alergia e Acarologia, Instituto de Ciências da Saúde, Universidade Federal da Bahia (UFBA), Salvador, Brazil.,Programa de Pós-Graduação em Imunologia (PPGIm-UFBA), Salvador, Brazil
| | - Carina Silva Pinheiro
- Laboratório de Alergia e Acarologia, Instituto de Ciências da Saúde, Universidade Federal da Bahia (UFBA), Salvador, Brazil
| | - Luis Gustavo Carvalho Pacheco
- Laboratório de Alergia e Acarologia, Instituto de Ciências da Saúde, Universidade Federal da Bahia (UFBA), Salvador, Brazil
| | - Neuza Maria Alcantara-Neves
- Laboratório de Alergia e Acarologia, Instituto de Ciências da Saúde, Universidade Federal da Bahia (UFBA), Salvador, Brazil.,Programa de Pós-Graduação em Imunologia (PPGIm-UFBA), Salvador, Brazil
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11
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Eichhorn S, Hörschläger A, Steiner M, Laimer J, Jensen BM, Versteeg SA, Pablos I, Briza P, Jongejan L, Rigby N, Asturias JA, Portolés A, Fernandez‐Rivas M, Papadopoulos NG, Mari A, Poulsen LK, Lackner P, van Ree R, Ferreira F, Gadermaier G. Rational Design, Structure-Activity Relationship, and Immunogenicity of Hypoallergenic Pru p 3 Variants. Mol Nutr Food Res 2019; 63:e1900336. [PMID: 31207117 PMCID: PMC6790652 DOI: 10.1002/mnfr.201900336] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 05/28/2019] [Indexed: 11/09/2022]
Abstract
SCOPE Allergies to lipid transfer proteins involve severe adverse reactions; thus, effective and sustainable therapies are desired. Previous attempts disrupting disulfide bonds failed to maintain immunogenicity; thus, the aim is to design novel hypoallergenic Pru p 3 variants and evaluate the applicability for treatment of peach allergy. METHODS AND RESULTS Pru p 3 proline variant (PV) designed using in silico mutagenesis, cysteine variant (CV), and wild-type Pru p 3 (WT) are purified from Escherichia coli. Variants display homogenous and stable protein conformations with an altered secondary structure in circular dichroism. PV shows enhanced long-term storage capacities compared to CV similar to the highly stable WT. Using sera of 33 peach allergic patients, IgE-binding activity is reduced by 97% (PV) and 71% (CV) compared to WT. Both molecules show strong hypoallergenicity in Pru p 3 ImmunoCAP cross-inhibition and histamine release assays. Immunogenicity of PV is demonstrated with a phosphate-based adjuvant formulation in a mouse model. CONCLUSIONS An in silico approach is used to generate a PV without targeting disulfide bonds, T cell epitopes, or previously reported IgE epitopes of Pru p 3. PV is strongly hypoallergenic while structurally stable and immunogenic, thus representing a promising candidate for peach allergen immunotherapy.
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Affiliation(s)
- Stephanie Eichhorn
- Department of BiosciencesUniversity of SalzburgHellbrunnerstraße 345020SalzburgAustria
| | - Angelika Hörschläger
- Department of BiosciencesUniversity of SalzburgHellbrunnerstraße 345020SalzburgAustria
| | - Markus Steiner
- Department of BiosciencesUniversity of SalzburgHellbrunnerstraße 345020SalzburgAustria
| | - Josef Laimer
- Department of BiosciencesUniversity of SalzburgHellbrunnerstraße 345020SalzburgAustria
| | - Bettina M Jensen
- Allergy Clinic, Dept. 22Herlev‐Gentofte HospitalKildegaardsvej 282900HellerupDenmark
| | - Serge A Versteeg
- Department of Experimental ImmunologyAmsterdam University Medical CentersMeibergdreef 91105AZAmsterdamThe Netherlands
| | - Isabel Pablos
- Department of BiosciencesUniversity of SalzburgHellbrunnerstraße 345020SalzburgAustria
| | - Peter Briza
- Department of BiosciencesUniversity of SalzburgHellbrunnerstraße 345020SalzburgAustria
| | - Laurian Jongejan
- Department of Experimental ImmunologyAmsterdam University Medical CentersMeibergdreef 91105AZAmsterdamThe Netherlands
| | - Neil Rigby
- Food & Health ProgrammeInst. of Food ResearchNorwichNorfolkNR4 7UQUnited Kingdom
| | - Juan A Asturias
- R&D DepartmentROXALL GroupParque Científico y Tecnológico de BizkaiaEdif. 40148170ZamudioSpain
| | - Antonio Portolés
- Department of Clinical PharmacologyHospital Clinico San Carlosc/ Prof. Martín Lagos s/n28040MadridSpain
| | | | - Nikolaos G Papadopoulos
- Division of Infection, Immunity & Respiratory MedicineUniversity of ManchesterRoyal Manchester Children's HospitalManchesterM13 9WLUnited Kingdom
- Allergy Dpt, 2nd Pediatric Clinic, University of Athens41, FidippidouAthens115 27Greece
| | - Adriano Mari
- Center of Molecular AllergologyIDIVia dei Monti di Creta 104ZIP 00167RomeItaly
- Associated Centers for Molecular AllergologyVia Portuense 700ZIP 00149RomeItaly
| | - Lars K Poulsen
- Allergy Clinic, Dept. 22Herlev‐Gentofte HospitalKildegaardsvej 282900HellerupDenmark
| | - Peter Lackner
- Department of BiosciencesUniversity of SalzburgHellbrunnerstraße 345020SalzburgAustria
| | - Ronald van Ree
- Department of Experimental ImmunologyAmsterdam University Medical CentersMeibergdreef 91105AZAmsterdamThe Netherlands
- Department of OtorhinolaryngologyAmsterdam University Medical CentersMeibergdreef 91105AZAmsterdamThe Netherlands
| | - Fatima Ferreira
- Department of BiosciencesUniversity of SalzburgHellbrunnerstraße 345020SalzburgAustria
| | - Gabriele Gadermaier
- Department of BiosciencesUniversity of SalzburgHellbrunnerstraße 345020SalzburgAustria
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12
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Til-Pérez G, Carnevale C, Sarría-Echegaray PL, Arancibia-Tagle D, Chugo-Gordillo S, Tomás-Barberán MD. Sensitization profile in patients with respiratory allergic diseases: differences between conventional and molecular diagnosis (a cross-sectional study). Clin Mol Allergy 2019; 17:8. [PMID: 31068762 PMCID: PMC6495638 DOI: 10.1186/s12948-019-0112-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 03/28/2019] [Indexed: 11/10/2022] Open
Abstract
Background Component-resolved diagnosis (CRD) allows to identify single molecular allergen components, and constitutes a routine practice in many allergy units. However, skin prick test (SPT) remains the technique of choice in many otorhinolaryngology departments, thus increasing the risk of using inadequate immunotherapies in patients with respiratory allergies. This study aimed to compare sensitization profiles determined by SPT and CRD in patients with respiratory allergy, and to explore the relationship between sensitization and type and severity of the respiratory disease. Methods Cross-sectional, multicenter study of patients admitted to the Otorhinolaryngology Department due to symptoms of respiratory allergy. Extracts from various house dust mites, pollens, and molds were tested by SPT, whereas IgE against the corresponding antigens were measured by CRD. Results The analysis included 101 patients. The sensitization profile obtained by SPT had low agreement with that of CRD, particularly to dust mite allergens (Dermatophagoides sp.) and pollens (Plantago lanceolata, Olea europaea, and Cupressus sempervirens). While SPT did not show any significant relationship between sensitization and type/severity of the respiratory disease, CRD allowed to associate Der p 1, Der f 1 and Lep d 2 sensitizations with asthma, and Der p 2, Der f 2 and Lep d 2 sensitizations with more severe symptoms of allergic rhinitis. Conclusions Compared with SPT, CRD enables to describe a more accurate sensitization profile and to identify associations between symptoms and specific antigens. The routine use of CRD in an otorhinolaryngology setting may benefit the management of patients with respiratory allergy.Trial registration IB 3108/15 (Retrospectively registered).
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Affiliation(s)
- Guillermo Til-Pérez
- 1Department of Otorhinolaryngology, Hospital Universitario Son Espases, Palma de Mallorca, Spain.,Department of Otorhinolaryngology and Allergology, Clínica Juaneda, Palma de Mallorca, Spain
| | - Claudio Carnevale
- 1Department of Otorhinolaryngology, Hospital Universitario Son Espases, Palma de Mallorca, Spain
| | - Pedro Luis Sarría-Echegaray
- 1Department of Otorhinolaryngology, Hospital Universitario Son Espases, Palma de Mallorca, Spain.,Department of Otorhinolaryngology and Allergology, Clínica Juaneda, Palma de Mallorca, Spain
| | - Diego Arancibia-Tagle
- 1Department of Otorhinolaryngology, Hospital Universitario Son Espases, Palma de Mallorca, Spain
| | - Sendy Chugo-Gordillo
- Department of Otorhinolaryngology and Allergology, Clínica Juaneda, Palma de Mallorca, Spain
| | - Manuel David Tomás-Barberán
- 1Department of Otorhinolaryngology, Hospital Universitario Son Espases, Palma de Mallorca, Spain.,Department of Otorhinolaryngology and Allergology, Clínica Juaneda, Palma de Mallorca, Spain
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13
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Kim SR, Park KH, Lee JH, Kim BJ, Hwang JH, Lim KJ, Park JW. Validation of PROTIA™ Allergy-Q 64 Atopy® as a Specific IgE Measurement Assay for 10 Major Allergen Components. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2019; 11:422-432. [PMID: 30912330 PMCID: PMC6439187 DOI: 10.4168/aair.2019.11.3.422] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/20/2019] [Accepted: 01/21/2019] [Indexed: 01/25/2023]
Abstract
PURPOSE Component-resolved diagnostics (CRD) is expected to provide additional diagnostic information in allergic patients. PROTIA™ Allergy-Q 64 Atopy®, a recently developed CRD-based multiplex specific immunoglobulin E (sIgE) assay, can quantitatively measure sIgE to major allergen components. METHODS The sIgE detection by PROTIA™ Allergy-Q 64 Atopy® and ImmunoCAP® assays was compared using the sera of 125 Korean allergic patients. Group 1 and 2 allergens of house dust mites (HDMs; Dermatophagoides farinae (Der f) 1 and Der f 2 in PROTIA™ Allergy-Q 64 Atopy®, Dermatophagoides pteronyssinus (Der p) 1 and Der p 2 in ImmunoCAP®), Bet v 1, Fel d 1, Que a 1, ω-5 gliadin, α-lactalbumin, β-lactoglobulin, casein and α-Gal were measured by both assays. RESULTS Comparing the results from the 2 assays, the agreement rate for all the 10 allergens was > 88% (group 1 HDM allergen, 100%; group 2 HDM allergen, 94.6%; Bet v 1, 97.4%; Fel d 1, 90.5%; Que a 1, 89.2%; α-lactalbumin, 96%; β-lactoglobulin, 88%; casein, 88%; ω-5 gliadin, 96%; α-Gal, 100%). Correlation analysis indicated that, all the 10 allergen sIgEs showed more than moderate positive correlation (Pearson correlation coefficients > 0.640). Additionally, intra-class comparison showed more than high correlation for all the 10 allergens (Spearman's rank correlation coefficients > 0.743). CONCLUSIONS PROTIA™ Allergy-Q 64 Atopy® is reliable and comparable to the ImmunoCAP® assay for component-resolved diagnosis.
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Affiliation(s)
- Sung Ryeol Kim
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung Hee Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Hyun Lee
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | | | | | | | - Jung Won Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea.
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14
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Yaghoubi Naei V, Sankian M, Moghadam M, Farshidi N, Ayati SH, Hamid F, Varasteh AR. The Influence of Gamma Radiation Processing on the Allergenicity of Main Pistachio Allergens. Rep Biochem Mol Biol 2019; 7:150-155. [PMID: 30805394 PMCID: PMC6374055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 03/20/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Gamma irradiation is a form of processing with an array of applications in medical sciences such as microbial decontamination, viruses inactivation, cervical carcinoma and breast cancer treatment. One of the ways in which gamma irradiation has the potential to be used is in reducing the allergenicity of food allergens. METHODS In the present study, pistachios were irradiated with either a 1, 10, or 100 kGy dose of gamma irradiation. The binding rate of mice and human antibodies to the allergens of the pistachio extracts were examined via Western blot analysis. RESULTS Our findings show an inverse dose-response relationship between the binding rate of antibodies to the pistachio allergens and the gamma irradiation dose. Despite these promising findings, the results of our sensory evaluation indicate that gamma irradiation causes undesirable changes to the sensory characteristics of pistachios, especially at the dose of 100 kGy. CONCLUSION Gamma irradiation appears to be an effective method in reducing the allergenicity of pistachios. Thus, this form of processing has the potential to prevent adverse allergic reactions to the major pistachio allergens in sensitized subjects. However, further research must be dedicated to examining the dose sufficient in reducing allergencity, while maintaining adequate sensory quality for satisfactory consumption.
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Affiliation(s)
- Vahid Yaghoubi Naei
- Immunology Research Center, Bu-Ali Research Institute, University of Medical Sciences, Mashhad, Iran.
| | - Mojtaba Sankian
- Immunology Research Center, Bu-Ali Research Institute, University of Medical Sciences, Mashhad, Iran.
| | - Malihe Moghadam
- Immunology Research Center, Bu-Ali Research Institute, University of Medical Sciences, Mashhad, Iran.
| | - Narges Farshidi
- Immunology Research Center, Bu-Ali Research Institute, University of Medical Sciences, Mashhad, Iran.
| | - Seyed Hasan Ayati
- Immunology Research Center, Bu-Ali Research Institute, University of Medical Sciences, Mashhad, Iran.
| | - Fatemeh Hamid
- Department of Medical Laboratory, Varastegan Institute for Medical Sciences, Mashhad, Iran.
| | - Abdol-Reza Varasteh
- Immunology Research Center, Bu-Ali Research Institute, University of Medical Sciences, Mashhad, Iran.
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15
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Kadam K, Karbhal R, Jayaraman VK, Sawant S, Kulkarni-Kale U. AllerBase: a comprehensive allergen knowledgebase. DATABASE-THE JOURNAL OF BIOLOGICAL DATABASES AND CURATION 2018; 2017:4157991. [PMID: 29220458 PMCID: PMC5737053 DOI: 10.1093/database/bax066] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 08/08/2017] [Indexed: 12/24/2022]
Abstract
Allergic diseases represent a major health concern worldwide due to steady rise in their prevalence leading to increased disease burden. The field of allergy research has witnessed significant progress and the focus of studies has shifted to molecular level. Vast amounts of data for allergens are archived in allergen databases, which cover diverse aspects of allergens and allergenicity with varying degrees of completeness. Users are required to refer to multiple databases including general purpose immunological databases to obtain relevant data of allergens. AllerBase, a relational database, has been developed with the objective of integrating protein allergens and related data from prevailing bioinformatics resources and published literature. AllerBase is a manually curated comprehensive knowledgebase of experimentally validated allergens where various attributes of allergenicity are made available on a single platform. Links to sequences, structures and immunological data are provided, where available, for all allergens. Data for specific features such as IgE-binding epitopes, IgE cross-reactivity and IgE antibodies are curated and archived. Bibliographic data reporting assays used for experimental characterization of allergens are compiled and processed using text mining approach. AllerBase, thus provides enhanced coverage of data with high granularity. The database can be browsed by category of allergens, epitopes or antibodies. It can also be queried using various attributes such as allergen name, isoallergens/variants, taxonomic level, source organism, sequences, structures, epitopes, antibodies and cross-reactive allergens. AllerBase also provides interface for sequence-based analyses and visualization of structure/epitope which can be used as a framework for translational research. A Completeness Index has been devised to indicate the availability of data on nine attributes for every allergen. This index will also serve as a pointer to identify allergen-specific areas of further research. AllerBase can be used to understand various aspects of allergy and allergenicity at molecular level and to design anti-allergy therapeutics. Database URL:http://bioinfo.net.in/AllerBase/Home.html
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Affiliation(s)
| | | | - V K Jayaraman
- Centre for Modeling and Simulation, Savitribai Phule Pune University, Pune 411007, India.,Shiv Nadar University, Gautam Buddha Nagar, Uttar Pradesh 201314, India
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16
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Dyo YM, Purton S. The algal chloroplast as a synthetic biology platform for production of therapeutic proteins. Microbiology (Reading) 2018; 164:113-121. [DOI: 10.1099/mic.0.000599] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Yuliya M. Dyo
- Molecular Research of Microalgae Laboratory, M. A. Ajtkhozhin Institute of Molecular Biology and Biochemistry, Almaty, Kazakhstan
- Department of Biotechnology, Kazakh National Research Technology University, Almaty, Kazakhstan
| | - Saul Purton
- Algal Research Group, Institute of Structural and Molecular Biology, University College London, Gower Street, London, WC1E 6BT, UK
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17
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Affiliation(s)
- Jung-Won Park
- Department of Internal Medicine and Allergy Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Kyoung Yong Jeong
- Department of Internal Medicine and Allergy Institute, Yonsei University College of Medicine, Seoul, Korea
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18
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Zimmer J, Döring S, Strecker D, Trösemeier JH, Hanschmann KM, Führer F, Vieths S, Kaul S. Minor allergen patterns in birch pollen allergen products-A question of pollen? Clin Exp Allergy 2017; 47:1079-1091. [PMID: 28493312 DOI: 10.1111/cea.12955] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 03/29/2017] [Accepted: 04/19/2017] [Indexed: 11/27/2022]
Abstract
BACKGROUND Contrary to the scientific differentiation between major and minor allergens, the regulatory framework controlling allergen products in the EU distinguishes relevant and non-relevant allergens. Given the lack of knowledge on their clinical relevance, minor allergens are usually not controlled by allergen product specifications. Especially, in birch pollen (BP) allergen products, minor allergens are commonly disregarded. OBJECTIVES To quantify three minor allergens in BP allergen products from different manufacturers and to assess the influence of the utilized BP on minor allergen patterns. METHODS Apart from common quality parameters such as Bet v 1 content, Bet v 4, Bet v 6 and Bet v 7 were quantified in 70 BP allergen product batches from six manufacturers, using ELISA systems developed in-house. Batch-to-batch variability was checked for agreement with a variability margin of 50%-200% from mean of the given batches for individual allergen content. Subsequently, minor allergen patterns were generated via multidimensional scaling and related to information on the pollen lots used in production of the respective product batches. RESULTS Like the already established Bet v 4 ELISA, the ELISA systems for quantification of Bet v 6 and Bet v 7 were successfully validated. Differences in minor allergen content between products and batch-to-batch consistency were observed. Correlations between minor and major allergen content were low to moderate. About 20% of batches exceeded the variability margin for at least one minor allergen. Interestingly, these fluctuations could not in all cases be linked to the use of certain BP lots. CONCLUSIONS AND CLINICAL RELEVANCE The impact of the observed minor allergen variability on safety and efficacy of BP allergen products can currently not be estimated. As the described differences could only in few cases be related to the used pollen lots, it is evident that additional factors influence minor allergens in BP allergen products.
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Affiliation(s)
- J Zimmer
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - S Döring
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - D Strecker
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - J H Trösemeier
- Division of Microbiology, Paul-Ehrlich-Institut, Langen, Germany
| | - K M Hanschmann
- Division of Microbiology, Paul-Ehrlich-Institut, Langen, Germany
| | - F Führer
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - S Vieths
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - S Kaul
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
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19
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Hirschl S, Ralser C, Asam C, Gangitano A, Huber S, Ebner C, Bohle B, Wolf M, Briza P, Ferreira F, Griesbeck C, Wallner M. Expression and Characterization of Functional Recombinant Bet v 1.0101 in the Chloroplast of Chlamydomonas reinhardtii. Int Arch Allergy Immunol 2017; 173:44-50. [PMID: 28494467 DOI: 10.1159/000471852] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 03/21/2017] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Allergen immunotherapy (AIT) still plays a minor role in the treatment of allergic diseases. To improve the acceptance of AIT by allergic patients, the treatment has to become more convenient and efficacious. One possibility is the oral application of allergens or derivatives thereof. Therefore, we sought to produce a recombinant allergen in the green alga Chlamydomonas reinhardtii as a novel production platform. METHODS The major birch pollen allergen Bet v 1 was selected as candidate molecule, and a codon-optimized gene was synthesized and stably integrated into the microalga C. reinhardtii FUD50. Positive transformants were identified by PCR, cultured, and thereafter cells were disrupted by sonication. Bet v 1 was purified from algal total soluble protein (TSP) by affinity chromatography and characterized physicochemically as well as immunologically. RESULTS All transformants showed expression of the allergen with yields between 0.01 and 0.04% of TSP. Algal-derived Bet v 1 displayed similar secondary structure elements as the Escherichia coli-produced reference allergen. Moreover, Bet v 1 produced in C. reinhardtii showed binding comparable to human IgE as well as murine Bet v 1-specific IgG. CONCLUSION We could successfully produce recombinant Bet v 1 in C. reinhardtii. As microalgae are classified as GRAS (generally recognized as safe), the pilot study supports the development of novel allergy treatment concepts such as the oral administration of allergen-containing algal extracts for therapy.
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Affiliation(s)
- Sonja Hirschl
- Department of Biotechnology and Food Engineering, MCI Management Center Innsbruck, Innsbruck, Austria
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Tscheppe A, Breiteneder H. Recombinant Allergens in Structural Biology, Diagnosis, and Immunotherapy. Int Arch Allergy Immunol 2017; 172:187-202. [PMID: 28467993 DOI: 10.1159/000464104] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The years 1988-1995 witnessed the beginning of allergen cloning and the generation of recombinant allergens, which opened up new avenues for the diagnosis and research of human allergic diseases. Most crystal and solution structures of allergens have been obtained using recombinant allergens. Structural information on allergens allows insights into their evolutionary biology, illustrates clinically observed cross-reactivities, and makes the design of hypoallergenic derivatives for allergy vaccines possible. Recombinant allergens are widely used in molecule-based allergy diagnosis such as protein microarrays or suspension arrays. Recombinant technologies have been used to produce well-characterized, noncontaminated vaccine components with known biological activities including a variety of allergen derivatives with reduced IgE reactivity. Such recombinant hypoallergens as well as wild-type recombinant allergens have been used successfully in several immunotherapy trials for more than a decade to treat birch and grass pollen allergy. As a more recent application, the development of antibody repertoires directed against conformational epitopes during immunotherapy has been monitored by recombinant allergen chimeras. Although much progress has been made, the number and quality of recombinant allergens will undoubtedly increase and keep improving our knowledge in basic scientific investigations, diagnosis, and therapy of human allergic diseases.
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Affiliation(s)
- Angelika Tscheppe
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
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Santos da Silva E, Asam C, Lackner P, Hofer H, Wallner M, Silva Pinheiro C, Alcântara-Neves NM, Ferreira F. Allergens of Blomia tropicalis: An Overview of Recombinant Molecules. Int Arch Allergy Immunol 2017; 172:203-214. [PMID: 28456805 PMCID: PMC5472214 DOI: 10.1159/000464325] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Allergic diseases are considered a major problem for healthcare systems in both developed and developing countries. House dust mites are well-known triggers of allergic manifestations. While the Dermatophagoides genus is widely distributed globally, Blomia tropicalis is the most prominent mite species in the tropical and subtropical regions of the world. Over the last decades, an increase in sensitization rates to B. tropicalis has been reported, leading to increased research efforts on Blomia allergens. In fact, 8 new allergens have been identified and characterized to different degrees. Here, we provide an overview of recent developments concerning the identification and production of recombinant Blomia allergens, as well as their structural and immunological characterization. Although considerable progress has been achieved, detailed molecule-based studies are still needed to better define the clinical relevance of Blomia allergens. Thus, the establishment of a well-standardized and fully characterized panel of allergens remains a challenge for the development of better diagnosis and therapy of allergic diseases induced by B. tropicalis.
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Affiliation(s)
- Eduardo Santos da Silva
- Laboratório de Alergia e Acarologia, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Recife, Brazil
- Programa de Pós-Graduação em Biotecnologia da Rede Nordeste de Biotecnologia (RENORBIO), Recife, Brazil
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Claudia Asam
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Peter Lackner
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Heidi Hofer
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Michael Wallner
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Carina Silva Pinheiro
- Laboratório de Alergia e Acarologia, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Recife, Brazil
| | - Neuza Maria Alcântara-Neves
- Laboratório de Alergia e Acarologia, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Recife, Brazil
- Programa de Pós-Graduação em Biotecnologia da Rede Nordeste de Biotecnologia (RENORBIO), Recife, Brazil
| | - Fatima Ferreira
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
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22
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Ahammer L, Grutsch S, Kamenik AS, Liedl KR, Tollinger M. Structure of the Major Apple Allergen Mal d 1. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:1606-1612. [PMID: 28161953 PMCID: PMC5334782 DOI: 10.1021/acs.jafc.6b05752] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 02/03/2017] [Accepted: 02/05/2017] [Indexed: 05/24/2023]
Abstract
More than 70% of birch pollen-allergic patients develop allergic cross-reactions to the major allergen found in apple fruits (Malus domestica), the 17.5 kDa protein Mal d 1. Allergic reactions against this protein result from initial sensitization to the major allergen from birch pollen, Bet v 1. Immunologic cross-reactivity of Bet v 1-specific IgE antibodies with Mal d 1 after apple consumption can subsequently provoke severe oral allergic syndromes. This study presents the three-dimensional NMR solution structure of Mal d 1 (isoform Mal d 1.0101, initially cloned from 'Granny Smith' apples). This protein is composed of a seven-stranded antiparallel β-sheet and three α-helices that form a large internal cavity, similar to Bet v 1 and other cross-reactive food allergens. The Mal d 1 structure provides the basis for elucidating the details of allergic cross-reactivity between birch pollen and apple allergens on a molecular level.
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Affiliation(s)
- Linda Ahammer
- Institute
of Organic Chemistry, Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80/82, A-6020 Innsbruck, Austria
| | - Sarina Grutsch
- Institute
of Organic Chemistry, Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80/82, A-6020 Innsbruck, Austria
| | - Anna S. Kamenik
- Institute
of General, Inorganic and Theoretical Chemistry, Center for Molecular
Biosciences Innsbruck (CMBI), University
of Innsbruck, Innrain
80/82, A-6020 Innsbruck, Austria
| | - Klaus R. Liedl
- Institute
of General, Inorganic and Theoretical Chemistry, Center for Molecular
Biosciences Innsbruck (CMBI), University
of Innsbruck, Innrain
80/82, A-6020 Innsbruck, Austria
| | - Martin Tollinger
- Institute
of Organic Chemistry, Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80/82, A-6020 Innsbruck, Austria
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Tackling Bet v 1 and associated food allergies with a single hybrid protein. J Allergy Clin Immunol 2016; 140:525-533.e10. [PMID: 27939703 PMCID: PMC5693327 DOI: 10.1016/j.jaci.2016.09.055] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 08/19/2016] [Accepted: 09/19/2016] [Indexed: 11/26/2022]
Abstract
Background Allergy vaccines should be easily applicable, safe, and efficacious. For Bet v 1–mediated birch pollen and associated food allergies, a single wild-type allergen does not provide a complete solution. Objective We aimed to combine immunologically relevant epitopes of Bet v 1 and the 2 clinically most important related food allergens from apple and hazelnut to a single hybrid protein, termed MBC4. Methods After identification of T cell epitope–containing parts on each of the 3 parental allergens, the hybrid molecule was designed to cover relevant epitopes and evaluated in silico. Thereby a mutation was introduced into the hybrid sequence, which should alter the secondary structure without compromising the immunogenic properties of the molecule. Results MBC4 and the parental allergens were purified to homogeneity. Analyses of secondary structure elements revealed substantial changes rendering the hybrid de facto nonreactive with patients’ serum IgE. Nevertheless, the protein was monomeric in solution. MBC4 was able to activate T-cell lines from donors with birch pollen allergy and from mice immunized with the parental allergens. Moreover, on immunization of mice and rabbits, MBC4 induced cross-reactive IgG antibodies, which were able to block the binding of human serum IgE. Conclusion Directed epitope rearrangements combined with a knowledge-based structural modification resulted in a protein unable to bind IgE from allergic patients. Still, properties to activate specific T cells or induce blocking antibodies were conserved. This suggests that MBC4 is a suitable vaccine candidate for the simultaneous treatment of Bet v 1 and associated food allergies.
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Park KH, Lee SC, Son YW, Jeong KY, Shin YS, Shin JU, Sim DW, Park HJ, Lee JH, Lee KH, Park JW. Different Responses in Induction of Allergen Specific Immunoglobulin G4 and IgE-Blocking Factors for Three Mite Subcutaneous Immunotherapy Products. Yonsei Med J 2016; 57:1427-34. [PMID: 27593871 PMCID: PMC5011275 DOI: 10.3349/ymj.2016.57.6.1427] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 05/13/2016] [Accepted: 05/15/2016] [Indexed: 01/02/2023] Open
Abstract
PURPOSE Specific immunoglobulin G4 (sIgG4) and immunoglobulin E (IgE)-blocking factors produced by subcutaneous immunotherapy (SCIT) play a critical role in the induction of allergen tolerance. However, comparative studies of available SCIT reagents on the induction of sIgG4 are limited. We compared increases in sIgG4 for three different house dust mite (HDM) SCIT reagents. MATERIALS AND METHODS Seventy-two HDM sensitized allergic patients were enrolled and classified into four groups: 1) control (n=27), 2) SCIT with Hollister-Stier® (n=19), 3) Tyrosine S® (n=16), and 4) Novo-Helisen® (n=10). Levels of specific IgE (sIgE), sIgG4, and IgE blocking factor to Dermatophagoides farinae (D. farinae) were measured using ImmunoCAP (sIgE, sIgG4) and enzyme-linked immunosorbent assay (ELISA) (IgE-blocking factors). Levels were measured before and 13.9±6.6 months after the SCIT. The allergen specificity and the induction levels of sIgE and sIgG4 were confirmed by immunoblot analysis. RESULTS After SCIT, sIgG4 levels to D. farinae increased significantly; however, the increases differed significantly among the SCIT groups (p<0.001). Specific IgG4 levels to D. farinae were highest in Hollister-Stier® (3.7±4.1 mg/L), followed by Novo-Helisen® (2.2±2.3 mg/L) and Tyrosine S® (0.7±0.5 mg/L). In addition, patients who were administered using Hollister-Stier® showed the most significant decrease in IgE/IgG4 ratio (p<0.001) and increase in blocking factor (p=0.009). Finally, according to IgE immunoblot results, the Hollister-Stier® group showed the most significant attenuation of IgE binding patterns among others. CONCLUSION Currently available SCIT reagents induce different levels of specific IgG4, IgE/IgG4 ratio, and IgE-blocking factor.
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Affiliation(s)
- Kyung Hee Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Chul Lee
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Young Woong Son
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Kyoung Yong Jeong
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Yoo Seob Shin
- Department of Allergy and Clinical Immunology, Ajou Medical School of Medicine, Suwon, Korea
| | - Jung U Shin
- Department of Dermatology & Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Da Woon Sim
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Hye Jung Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Hyun Lee
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Kwang Hoon Lee
- Department of Dermatology & Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Won Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea.
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Park KH, Son YW, Lee SC, Jeong K, Sim DW, Park HJ, Lee S, Lee JH, Park JW. Clinical Significance of Component Allergens in Fagales Pollen-Sensitized Peanut Allergy in Korea. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2016; 8:505-11. [PMID: 27582401 PMCID: PMC5011050 DOI: 10.4168/aair.2016.8.6.505] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 03/15/2016] [Accepted: 04/25/2016] [Indexed: 11/20/2022]
Abstract
PURPOSE Clinical features of peanut allergy can range from localized to systemic reactions. Because peanut and birch pollen have cross-reactivity, peanut can lead to localized allergic reaction in Fagales pollen-sensitized oral allergy syndrome (OAS) patients without peanut sensitization per se. The purpose of this study was to discriminate true peanut food allergy from cross-reactive hypersensitivity in birch-sensitized peanut allergy. METHODS Birch-sensitized (n=81) and peanut anaphylaxis patients (n=12) were enrolled. Peanut-related allergic reactions and sensitization profiles were examined. Specific IgE to Fagales tree pollens (birch, oak), peanut, and their component allergens (Bet v 1, Bet v 2, Ara h 1, Ara h 2, Ara h 3, Ara h 8, and Ara h 9) were evaluated. Based on these specific IgEs and clinical features, the patients were classified into 4 groups: group 1 (Fagales pollen allergy without OAS), group 2 (Fagales pollen allergy with OAS), group 3 (OAS with peanut anaphylaxis), and group 4 (peanut anaphylaxis). RESULTS After peanut consumption, one-third of OAS patients experienced oral symptoms not associated with peanut sensitization. Ara h 1 or Ara h 2 was positive in peanut anaphylaxis patients, whereas Ara h 8 was positive in OAS patients. There were 4 patients with both peanut anaphylaxis and OAS (group 3). Both Ara h 2 and Ara h 8 were positive in these patients. Foods associated with OAS in Korea showed unique patterns compared to Westernized countries. CONCLUSIONS Ara h 2 and Ara h 8 may be important component allergens for discriminating peanut allergy.
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Affiliation(s)
- Kyung Hee Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Young Woong Son
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Chul Lee
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Kyunguk Jeong
- Department of Pediatrics, Ajou University School of Medicine, Suwon, Korea
| | - Da Woon Sim
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Hye Jung Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Sooyoung Lee
- Department of Pediatrics, Ajou University School of Medicine, Suwon, Korea
| | - Jae Hyun Lee
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Won Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea.
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Jeong KY, Son M, Park JH, Park KH, Park HJ, Lee JH, Hong CS, Park JW. Cross-Reactivity between Oak and Birch Pollens in Korean Tree Pollinosis. J Korean Med Sci 2016; 31:1202-7. [PMID: 27478329 PMCID: PMC4951548 DOI: 10.3346/jkms.2016.31.8.1202] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 04/10/2016] [Indexed: 11/20/2022] Open
Abstract
Oak and birch trees belong to Fagales order. Specific IgE to pollen allergens of both trees are frequently found in Korea pollinosis patients. Oak trees which comprise 40% of forest area are common in Korea. However, birch trees are sparse. We compared the allergenicity of pollen extracts of white oak, sawtooth and Mongolian oaks which are prevalent species in Korea, with the pollen extract of birch. The cross-reactivity of four pollen extracts was examined with pooled sera of 12 patients by ELISA, immunoblotting and CAP inhibitions. A protein of 17 kDa, putatively homologous to a major birch allergen Bet v 1, displayed strong IgE reactivity from white oak and sawtooth oak pollen extract but not from Mongolian oak pollen. Notably, a 23-kDa protein from sawtooth and white oaks showed strong IgE reactivity and inhibited by Bet v 1. IgE binding to white oak was inhibited a maximum of 94.6% by white oak, 93.4% by sawtooth oak, 83.2% by Mongolian oak, and 68.8% by birch. Furthermore, sawtooth oak, white oak, and Mongolian oak extracts were able to inhibit up to 78.5%, 76.6% and 67.3% of IgE binding to birch extract, while birch extract itself inhibited up to 94.3%. Specific IgE to Bet v 1 was inhibited a maximum of 79.1% by sawtooth oak, 77.4% by white oak, and 72.7% by Mongolian oak, while 81.5% inhibition was shown by birch. Bet v 1 was able to partially inhibit its homologous molecules from sawtooth oak and white oak in immunoblotting. Birch pollen extract was found to be cross-reactive primarily with Bet v 1-homologous allergen from oak pollens in Korea pollinosis patients. Considering the sparseness of birch tree in Korea, oak, especially sawtooth oak may be the main cause of tree pollinosis in Korea, rather than birch.
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Affiliation(s)
- Kyoung Yong Jeong
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Mina Son
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jin Hee Park
- Department of Biology Education, Faculty of Education, Seowon University, Cheongju, Korea
| | - Kyung Hee Park
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Hye Jung Park
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jae-Hyun Lee
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Chein-Soo Hong
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jung-Won Park
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
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Kim SR, Park HJ, Park KH, Lee JH, Park JW. IgE Sensitization Patterns to Commonly Consumed Foods Determined by Skin Prick Test in Korean Adults. J Korean Med Sci 2016; 31:1197-201. [PMID: 27478328 PMCID: PMC4951547 DOI: 10.3346/jkms.2016.31.8.1197] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 04/10/2016] [Indexed: 01/19/2023] Open
Abstract
Offending food allergens can vary with regional preferences in food consumption. In this study, we analysed sensitization rates to commonly consumed foods in Korean adults suspected of having food allergy. One hundred and thirty four subjects underwent a skin prick test (SPT) with 55 food allergens, of which 13 were made by our laboratory and the rest were commercially purchased. Of the 134 patients, 73 (54.5%) were sensitized to one or more food allergens. Sensitization to chrysalis was detected most frequently, at a rate of 25.4%. Sensitization rates to other food allergens were as follows: maize grain (13.4%), shrimp (11.9%), almond (11.1%), wheat flour (8.2%), lobster (8.2%), buckwheat (8.2%), mackerel (5.2%), pollack (5.2%), halibut (4.5%), peanut (4.5%), anchovy (4.4%), squid (3.7%), saury (3.0%), common eel (3.0%), yellow corvina (3.0%), hairtail (2.2%), octopus (2.2%), and others. In addition to well-known food allergens, sensitivity to mackerel, chrysalis, pollack, and halibut, which are popular foods in Korea, was observed at high rates in Korean adults. We suggest that the SPT panel for food allergy in Korea should include these allergens.
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Affiliation(s)
- Sung Ryeol Kim
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Hye Jung Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung Hee Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jae-Hyun Lee
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jung-Won Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
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Kim HH, Lee CS, Yu SD, Lee JS, Chang JY, Jeon JM, Son HR, Park CJ, Shin DC, Lim YW. Near-Road Exposure and Impact of Air Pollution on Allergic Diseases in Elementary School Children: A Cross-Sectional Study. Yonsei Med J 2016; 57:698-713. [PMID: 26996571 PMCID: PMC4800361 DOI: 10.3349/ymj.2016.57.3.698] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 08/27/2015] [Accepted: 09/04/2015] [Indexed: 12/13/2022] Open
Abstract
PURPOSE The study aims to classify schools based on traffic pollutants and their complex sources, to assess the environment, to determine the state of allergic diseases among students using the International Study of Asthma and Allergies in children (ISAAC) questionnaire, and to assess their connection to air pollutants. MATERIALS AND METHODS A total of seven schools were divided into three categories according to the characteristics of their surrounding environments: three schools in traffic-related zones, two schools in complex source zones I (urban), and two schools in complex source zones II (industrial complex). ISAAC questionnaires were administered and the 4404 completed questionnaires were analyzed. RESULTS The frequency of asthma treatment during the past 12 months showed a significant increase (p<0.05) with exposure to NO₂ [1.67, 95% confidence intervals (CIs) 1.03-2.71] in the complex source zones. The frequency of allergic rhinitis treatment during the past 12 months increased significantly with exposure to Black Carbon (1.60, 95% CIs 1.36-1.90) (p<0.001), SO₂ (1.09, 95% CIs 1.01-1.17) (p<0.05), NO₂ (1.18, 95% CIs 1.07-1.30) (p<0.01) for all subjects. CONCLUSION In terms of supporting children's health, care, and prevention related to major spaces for children, such as school zones, spaces used in coming to and leaving school, playgrounds, and classrooms are essential to ensuring not only the safety of children from traffic accidents but also their protection from local traffic pollutants and various hazardous environmental factors.
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Affiliation(s)
- Ho Hyun Kim
- Department of Integrated Environmental Systems, Pyeongtaek University, Pyeongtaek, Korea
| | - Chung Soo Lee
- Research Development and Education Division, National Institute of Chemical Safety, Ministry of Environment, Daejeon, Korea
| | - Seung Do Yu
- Environmental Health Research Division, Environmental Health Research Department, National Institute of Environmental Research, Ministry of Environment, Incheon, Korea
| | - Jung Sub Lee
- Environmental Health Research Division, Environmental Health Research Department, National Institute of Environmental Research, Ministry of Environment, Incheon, Korea
| | - Jun Young Chang
- Environmental Health Research Division, Environmental Health Research Department, National Institute of Environmental Research, Ministry of Environment, Incheon, Korea
| | - Jun Min Jeon
- Department of Environmental Science and Engineering, Kyung Hee University College of Engineering, Suwon, Korea
| | - Hye Rim Son
- Institute for Environmental Research, Yonsei University College of Medicine, Seoul, Korea
| | - Chan Jung Park
- The Environment Technology Institute, Coway., Ltd., Seoul, Korea
| | - Dong Chun Shin
- Institute for Environmental Research, Yonsei University College of Medicine, Seoul, Korea
| | - Young Wook Lim
- Institute for Environmental Research, Yonsei University College of Medicine, Seoul, Korea.
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29
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Silva ESD, Pinheiro CS, Quintella CM, Ferreira F, C Pacheco LG, Alcântara-Neves NM. Advances in patent applications related to allergen immunotherapy. Expert Opin Ther Pat 2016; 26:657-68. [PMID: 27011299 DOI: 10.1517/13543776.2016.1170809] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Allergies are among the most prevalent chronic diseases worldwide. Allergen-specific immunotherapy is used as an alternative treatment to pharmacotherapy. These immunotherapies are performed with crude extracts, which have disadvantages when compared to the new approaches, among them are recombinant proteins and hypoallergens. This review aims to assess immunotherapy for allergies through patent application analysis spanning recent decades. AREAS COVERED Patents referring to allergen immunotherapies used in allergy treatment. Data were obtained from the Espacenet® website, using the Cooperative Patent Classification (CPC) system. Two-hundred-and-one patent applications were analyzed, taking into consideration their classification by the type of technology and applicant. EXPERT OPINION Allergen-specific immunotherapy represents the only potentially curative therapeutic intervention for the treatment of allergic diseases. The extract-based immunotherapy is being replaced by the use of recombinant allergens, highlighting the hypoallergenic forms, which have low IgE-binding while retaining T-cell reactivity. It is expected that the development of hypoallergens will expand the scope of allergen-specific immunotherapy, especially if associated with alternative systems for expression and delivery systems with future potential. Furthermore, these new developments will likely address the problem of long-term protocols in allergen-specific immunotherapy, thus allowing better patient adherence and compliance.
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Affiliation(s)
- Eduardo Santos da Silva
- a Instituto de Ciências da Saúde - ICS , Universidade Federal da Bahia (UFBA) , Salvador , Bahia , Brazil.,b Programa de Pós-Graduação em Biotecnologia da Rede Nordeste de Biotecnologia (RENORBIO) , Universidade Estadual do Ceará , Fortaleza , Brazil
| | - Carina Silva Pinheiro
- a Instituto de Ciências da Saúde - ICS , Universidade Federal da Bahia (UFBA) , Salvador , Bahia , Brazil
| | | | - Fatima Ferreira
- d Department of Molecular Biology , University of Salzburg , Salzburg , Austria
| | - Luis Gustavo C Pacheco
- a Instituto de Ciências da Saúde - ICS , Universidade Federal da Bahia (UFBA) , Salvador , Bahia , Brazil
| | - Neuza Maria Alcântara-Neves
- a Instituto de Ciências da Saúde - ICS , Universidade Federal da Bahia (UFBA) , Salvador , Bahia , Brazil.,b Programa de Pós-Graduação em Biotecnologia da Rede Nordeste de Biotecnologia (RENORBIO) , Universidade Estadual do Ceará , Fortaleza , Brazil
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30
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Abstract
Pollen allergens are one of the main causes of type I allergies affecting up to 30% of the population in industrialized countries. Climatic changes affect the duration and intensity of pollen seasons and may together with pollution contribute to increased incidences of respiratory allergy and asthma. Allergenic grasses, trees, and weeds often present similar habitats and flowering periods compromising clinical anamnesis. Molecule-based approaches enable distinction between genuine sensitization and clinically mostly irrelevant IgE cross-reactivity due to, e. g., panallergens or carbohydrate determinants. In addition, sensitivity as well as specificity can be improved and lead to identification of the primary sensitizing source which is particularly beneficial regarding polysensitized patients. This review gives an overview on relevant pollen allergens and their usefulness in daily practice. Appropriate allergy diagnosis is directly influencing decisions for therapeutic interventions, and thus, reliable biomarkers are pivotal when considering allergen immunotherapy in the context of precision medicine.
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Affiliation(s)
- Isabel Pablos
- />Department of Molecular Biology, University of Salzburg, Hellbrunner Straße 34, 5020 Salzburg, Austria
| | - Sabrina Wildner
- />Christian Doppler Laboratory for Biosimilar Characterization, University of Salzburg, Hellbrunner Straße 34, 5020 Salzburg, Austria
| | - Claudia Asam
- />Department of Molecular Biology, University of Salzburg, Hellbrunner Straße 34, 5020 Salzburg, Austria
| | - Michael Wallner
- />Department of Molecular Biology, University of Salzburg, Hellbrunner Straße 34, 5020 Salzburg, Austria
| | - Gabriele Gadermaier
- />Department of Molecular Biology, University of Salzburg, Hellbrunner Straße 34, 5020 Salzburg, Austria
- />Christian Doppler Laboratory for Biosimilar Characterization, University of Salzburg, Hellbrunner Straße 34, 5020 Salzburg, Austria
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31
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Goodman RE, Ebisawa M, Ferreira F, Sampson HA, van Ree R, Vieths S, Baumert JL, Bohle B, Lalithambika S, Wise J, Taylor SL. AllergenOnline: A peer-reviewed, curated allergen database to assess novel food proteins for potential cross-reactivity. Mol Nutr Food Res 2016; 60:1183-98. [PMID: 26887584 DOI: 10.1002/mnfr.201500769] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 02/04/2016] [Accepted: 02/09/2016] [Indexed: 01/15/2023]
Abstract
SCOPE Increasingly regulators are demanding evaluation of potential allergenicity of foods prior to marketing. Primary risks are the transfer of allergens or potentially cross-reactive proteins into new foods. AllergenOnline was developed in 2005 as a peer-reviewed bioinformatics platform to evaluate risks of new dietary proteins in genetically modified organisms (GMO) and novel foods. METHODS AND RESULTS The process used to identify suspected allergens and evaluate the evidence of allergenicity was refined between 2010 and 2015. Candidate proteins are identified from the NCBI database using keyword searches, the WHO/IUIS nomenclature database and peer reviewed publications. Criteria to classify proteins as allergens are described. Characteristics of the protein, the source and human subjects, test methods and results are evaluated by our expert panel and archived. Food, inhalant, salivary, venom, and contact allergens are included. Users access allergen sequences through links to the NCBI database and relevant references are listed online. Version 16 includes 1956 sequences from 778 taxonomic-protein groups that are accepted with evidence of allergic serum IgE-binding and/or biological activity. CONCLUSION AllergenOnline provides a useful peer-reviewed tool for identifying the primary potential risks of allergy for GMOs and novel foods based on criteria described by the Codex Alimentarius Commission (2003).
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Affiliation(s)
- Richard E Goodman
- Food Allergy Research and Resource Program, Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Motohiro Ebisawa
- Department of Allergy, Sagamihara National Hospital, Sagamihara, Japan
| | - Fatima Ferreira
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Hugh A Sampson
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ronald van Ree
- Departments of Experimental Immunology and of Otorhinolaryngology, Academic Medical Center, Amsterdam, The Netherlands
| | - Stefan Vieths
- Department of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - Joseph L Baumert
- Food Allergy Research and Resource Program, Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Barbara Bohle
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Sreedevi Lalithambika
- Food Allergy Research and Resource Program, Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - John Wise
- Food Allergy Research and Resource Program, Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Steve L Taylor
- Food Allergy Research and Resource Program, Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
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Lee J, Lee H, Noh S, Bae BG, Shin JU, Park CO, Lee KH. Retrospective Analysis on the Effects of House Dust Mite Specific Immunotherapy for More Than 3 Years in Atopic Dermatitis. Yonsei Med J 2016; 57:393-8. [PMID: 26847292 PMCID: PMC4740532 DOI: 10.3349/ymj.2016.57.2.393] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 06/15/2015] [Accepted: 07/28/2015] [Indexed: 11/27/2022] Open
Abstract
PURPOSE In extrinsic atopic dermatitis (AD), house dust mites (HDM) play a role in eliciting or aggravating allergic lesions. The nature of skin inflammation in AD has raised a growing interest in allergen-specific immunotherapy (SIT). Thus, we assessed clinical improvement and laboratory parameters for evaluation of the benefit of long-term SIT. MATERIALS AND METHODS A total of 217 AD patients who were treated with SIT for at least 3 years were retrospectively assessed, by using their investigator global assessment, pruritus scores, loss of sleep (LOS), total serum IgE, and eosinophil counts collected. Patients were additionally classified into subgroups according to age, initial AD severity and mono- or multi-sensitization to include different individual factors in the evaluation of SIT efficacy. Lastly, we compared laboratory data of good responders to SIT with that of poor responders to SIT. RESULTS Improvement after SIT therapy was observed in 192 out of 217 patients (88.4%). Among these patients, 138 (63.5%) achieved excellent, near-complete or complete clinical remission. Significant reduction of pruritus, LOS, and the mean value of total serum IgE were observed (p<0.01). Better outcome was found in patients younger than 12 years of age (p=0.024). Patients with moderate to severe AD showed better treatment outcomes (p=0.036). Patients sensitized only to HDM had the better response to treatment, but SIT was also effective in multi-sensitized groups (p=1.051). No significant differences in baseline laboratory results were observed between good and poor responders (p>0.05). CONCLUSION We emphasize the usefulness of long-term HDM SIT as a disease-modifying therapy for AD.
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Affiliation(s)
- Jungsoo Lee
- Department of Dermatology, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Hemin Lee
- Department of Dermatology, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Seongmin Noh
- Department of Dermatology, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Byung Gi Bae
- Department of Dermatology, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jung U Shin
- Department of Dermatology, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Chang Ook Park
- Department of Dermatology, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Kwang Hoon Lee
- Department of Dermatology, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea.
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33
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Affiliation(s)
- Kyoung Yong Jeong
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
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34
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Peters U, Frenzel K, Brettschneider R, Oldenburg M, Bittner C. Identification of two metallothioneins as novel inhalative coffee allergens cof a 2 and cof a 3. PLoS One 2015; 10:e0126455. [PMID: 25962169 PMCID: PMC4427360 DOI: 10.1371/journal.pone.0126455] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 04/02/2015] [Indexed: 11/18/2022] Open
Abstract
Background Dust of green coffee beans is known to be a relevant cause for occupational allergic disorders in coffee industry workers. Recently, we described the first coffee allergen (Cof a 1) establishing an allergenic potential of green coffee dust. Objective Our aim was to identify allergenic components of green coffee in order to enhance inhalative coffee allergy diagnosis. Methods A Coffea arabica pJuFo cDNA phage display library was created and screened for IgE binding with sera from allergic coffee workers. Two further coffee allergens were identified by sequence analysis, expressed in E. coli, and evaluated by Western blots. The prevalence of sensitization to recombinant Cof a 1, Cof a 2, and Cof a 3 and to commercially available extract was investigated by ELISA (enzyme-linked immunosorbent assay) respectively CAP (capacity test) screening in 18 sera of symptomatic coffee workers. Results In addition to the previously described chitinase Cof a 1, two Coffea arabica cysteine-rich metallothioneins of 9 and 7 kDa were identified and included in the IUIS Allergen Nomenclature as Cof a 2 and Cof a 3. Serum IgE antibodies to at least one of the recombinant allergens were found in 8 out of 18 symptomatic coffee workers (44%). Only 2 of the analysed sera (11%) had reacted previously to the commercial allergy test. Conclusions In addition to the previously described Cof a 1 we have identified two further coffee proteins to be type I coffee allergens (Cof a 2 and Cof a 3) which may have a relevant potential for the specific diagnosis and/or therapy of coffee allergy.
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Affiliation(s)
- Ulrike Peters
- Biocenter Klein Flottbek and Botanical Garden, University of Hamburg, Hamburg, Germany
| | - Karsten Frenzel
- Biocenter Klein Flottbek and Botanical Garden, University of Hamburg, Hamburg, Germany
| | | | - Marcus Oldenburg
- Institute for Occupational Medicine and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Cordula Bittner
- Institute for Occupational Medicine and Maritime Medicine (ZfAM), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- * E-mail:
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