1
|
Balla J, Rathore AP, St John AL. Mechanisms and risk factors for perinatal allergic disease. Curr Opin Immunol 2024; 91:102505. [PMID: 39566249 DOI: 10.1016/j.coi.2024.102505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2024] [Revised: 10/19/2024] [Accepted: 10/26/2024] [Indexed: 11/22/2024]
Abstract
Allergies are among the top causes of chronic disease in children. Their pathogenesis classically involves T helper 2 (Th2)-type inflammation driven by IgE-mediated allergen sensing. Triggers influencing allergic disease occur early in life, including before birth. The immature fetal immune system and mucosal barriers undergo periods of plasticity that are open to longitudinal programming by maternal influence. Evidence supports the importance of the maternal immune system in shaping perinatal immunity, as the transfer of cytokines, antibodies, and cells promotes offspring protection from pathogens. However, the same components may lead to allergic predisposition. Maternal-fetal interactions are further modified by epigenetic, metabolic, dietary, and microbiome-mediated effects. Here, we review how diverse maternal exposures and mediators signal across the placenta and through nursing perinatally to promote future tolerance or enhance reactivity against allergens. Improved understanding of the mechanisms predisposing for allergic disease in early life can guide the development of new therapeutics and preventative lifestyle modifications.
Collapse
Affiliation(s)
- Jozef Balla
- Programme in Emerging Infectious Diseases, Duke-National University of Singapore Medical School, 169857 Singapore
| | - Abhay Ps Rathore
- Programme in Emerging Infectious Diseases, Duke-National University of Singapore Medical School, 169857 Singapore; Department of Pathology, Duke University Medical Center, Durham, North Carolina 27705, USA
| | - Ashley L St John
- Programme in Emerging Infectious Diseases, Duke-National University of Singapore Medical School, 169857 Singapore; Department of Pathology, Duke University Medical Center, Durham, North Carolina 27705, USA; Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; SingHealth Duke-NUS Global Health Institute, Singapore.
| |
Collapse
|
2
|
Parrón‐Ballesteros J, Martín‐Pedraza L, Gordo RG, Mayorga C, Pastor‐Vargas C, Titaux‐Delgado GA, Villalba M, Batanero E, Pantoja‐Uceda D, Turnay J. Long-chain fatty acids block allergic reaction against lipid transfer protein Sola l 7 from tomato seeds. Protein Sci 2024; 33:e5154. [PMID: 39180496 PMCID: PMC11344279 DOI: 10.1002/pro.5154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 07/23/2024] [Accepted: 08/09/2024] [Indexed: 08/26/2024]
Abstract
Due to the benefits of tomato as an antioxidant and vitamin source, allergy to this vegetable food is a clinically concerning problem. Sola l 7, a class I lipid transfer protein found in tomato seeds, has been identified as an allergen linked to severe anaphylaxis. However, the role of lipid binding in Sola l 7-induced allergy remains unclear. Here, the three-dimensional structure of recombinant Sola l 7 (rSola l 7) has been elucidated using nuclear magnetic resonance spectroscopy (NMR). Its interaction with free fatty acids has been deeply studied; fluorescence emission spectroscopy revealed that different long-chain fatty acids interact with the protein, affecting the only tyrosine residue present in Sola l 7. On the contrary, no changes in the overall secondary structure were observed after the analysis of the circular dichroism spectra in the presence of fatty acids. Unsaturated oleic and linoleic fatty acids presented higher affinity and promoted more significant changes than saturated or short-chain fatty acids. 1H-15N HSQC NMR spectra allowed to determine the regions of the protein that were modified when rSola l 7 interacts with the fatty acids, suggesting epitope modification after the interaction. For corroboration, IgG and IgE binding to rSola l 7 were assessed in the presence of free fatty acids, revealing that both IgE and IgG binding were significantly lower than in their absence, suggesting a potential protective role of unsaturated fatty acids in tomato allergy.
Collapse
Affiliation(s)
- Jorge Parrón‐Ballesteros
- Department of Biochemistry and Molecular Biology, Faculty of ChemistryComplutense University of MadridMadridSpain
| | - Laura Martín‐Pedraza
- Infectious Diseases DepartmentHospital Universitario Ramón y Cajal, Universidad de Alcalá, IRYCISMadridSpain
- CIBERINFEC, Instituto de Salud Carlos IIIMadridSpain
| | - Rubén G. Gordo
- Department of Biochemistry and Molecular Biology, Faculty of ChemistryComplutense University of MadridMadridSpain
| | - Cristobalina Mayorga
- Allergy Research GroupInstituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina—IBIMA Plataforma BIONANDMálagaSpain
- Allergy UnitHospital Regional Universitario de Málaga‐HRUMMálagaSpain
| | - Carlos Pastor‐Vargas
- Department of Biochemistry and Molecular Biology, Faculty of ChemistryComplutense University of MadridMadridSpain
| | - Gustavo A. Titaux‐Delgado
- Department Biological Physical Chemistry, “Blas Cabrera” Institute for Physical ChemistrySpanish National Research CouncilMadridSpain
| | - Mayte Villalba
- Department of Biochemistry and Molecular Biology, Faculty of ChemistryComplutense University of MadridMadridSpain
| | - Eva Batanero
- Department of Biochemistry and Molecular Biology, Faculty of ChemistryComplutense University of MadridMadridSpain
| | - David Pantoja‐Uceda
- Department Biological Physical Chemistry, “Blas Cabrera” Institute for Physical ChemistrySpanish National Research CouncilMadridSpain
| | - Javier Turnay
- Department of Biochemistry and Molecular Biology, Faculty of ChemistryComplutense University of MadridMadridSpain
| |
Collapse
|
3
|
Rabin RL. The Potential of Human Monoclonal IgE Antibodies to Establish Biological Potency and Stability of Allergen Extracts. Curr Allergy Asthma Rep 2024; 24:471-475. [PMID: 39046600 PMCID: PMC11364621 DOI: 10.1007/s11882-024-01168-4] [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] [Accepted: 07/09/2024] [Indexed: 07/25/2024]
Abstract
PURPOSE OF REVIEW Allergenic extracts are often standardized to control for potency, either by measuring concentrations of major allergens or "overall allergenicity" by competition for IgE in pooled sera from highly allergic subjects with a reference extract. Recent developments present an opportunity to use human mAb cloned from highly allergic subjects to define potency of allergenic extracts. RECENT FINDINGS Two recent developments present an opportunity for revising potency measurements of allergen extracts: cloning allergen specific IgE from allergic subjects and extensive epitope mapping of major allergenic proteins. Because human IgE mAb recognize biologically relevant epitopes, they present a novel opportunity to determine the potencies of allergenic extracts and may contribute to the science base for allergen standardization.
Collapse
Affiliation(s)
- Ronald L Rabin
- Center for Biologics Evaluation and Research, US Food and Drug Administration, 10309 New Hampshire Avenue Building 52, Room 3332, Silver Spring, MD, USA.
| |
Collapse
|
4
|
Rahman RS, Wesemann DR. Whence and wherefore IgE? Immunol Rev 2024; 326:48-65. [PMID: 39041740 PMCID: PMC11436312 DOI: 10.1111/imr.13373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
Despite the near ubiquitous presence of Ig-based antibodies in vertebrates, IgE is unique to mammals. How and why it emerged remains mysterious. IgE expression is greatly constrained compared to other IgH isotypes. While other IgH isotypes are relatively abundant, soluble IgE has a truncated half-life, and IgE plasma cells are mostly short-lived. Despite its rarity, IgE is consequential and can trigger life-threatening anaphylaxis. IgE production reflects a dynamic steady state with IgG memory B cells feeding short-lived IgE production. Emerging evidence suggests that IgE may also potentially be produced in longer-lived plasma cells as well, perhaps as an aberrancy stemming from its evolutionary roots from an antibody isotype that likely functioned more like IgG. As a late derivative of an ancient systemic antibody system, the benefits of IgE in mammals likely stems from the antibody system's adaptive recognition and response capability. However, the tendency for massive, systemic, and long-lived production, common to IgH isotypes like IgG, were likely not a good fit for IgE. The evolutionary derivation of IgE from an antibody system that for millions of years was good at antigen de-sensitization to now functioning as a highly specialized antigen-sensitization function required heavy restrictions on antibody production-insufficiency of which may contribute to allergic disease.
Collapse
Affiliation(s)
- Rifat S. Rahman
- Department of Internal Medicine, Columbia University Irving Medical Center, New York, NY
| | - Duane R. Wesemann
- Department of Medicine, Division of Allergy and Clinical Immunology, Division of Genetics, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Ragon Institute of MGH, MIT, and Harvard, Boston, MA, USA
- Broad Institute of MIT and Harvard, Boston, MA, USA
| |
Collapse
|
5
|
Peterkova L, Trifonova D, Gattinger P, Focke-Tejkl M, Garib V, Magbulova N, Djambekova G, Zakhidova N, Ismatova M, Sekerel BE, Tuten Dal S, Tulaev M, Kundi M, Keller W, Karaulov A, Valenta R. The cytoskeletal protein profilin is an important allergen in saltwort ( Salsola kali). Front Immunol 2024; 15:1379833. [PMID: 38911871 PMCID: PMC11190152 DOI: 10.3389/fimmu.2024.1379833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 05/13/2024] [Indexed: 06/25/2024] Open
Abstract
Pollen from Salsola kali, i.e., saltwort, Russian thistle, is a major allergen source in the coastal regions of southern Europe, in Turkey, Central Asia, and Iran. S. kali-allergic patients mainly suffer from hay-fever (i.e., rhinitis and conjunctivitis), asthma, and allergic skin symptoms. The aim of this study was to investigate the importance of individual S. kali allergen molecules. Sal k 1, Sal k 2, Sal k 3, Sal k 4, Sal k 5, and Sal k 6 were expressed in Escherichia coli as recombinant proteins containing a C-terminal hexahistidine tag and purified by nickel affinity chromatography. The purity of the recombinant allergens was analyzed by SDS-PAGE. Their molecular weight was determined by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, and their fold and secondary structure were studied by circular dichroism (CD) spectroscopy. Sera from clinically well-characterized S. kali-allergic patients were used for IgE reactivity and basophil activation experiments. S. kali allergen-specific IgE levels and IgE levels specific for the highly IgE cross-reactive profilin and the calcium-binding allergen from timothy grass pollen, Phl p 12 and Phl p 7, respectively, were measured by ImmunoCAP. The allergenic activity of natural S. kali pollen allergens was studied in basophil activation experiments. Recombinant S. kali allergens were folded when studied by CD analysis. The sum of recombinant allergen-specific IgE levels and allergen-extract-specific IgE levels was highly correlated. Sal k 1 and profilin, reactive with IgE from 64% and 49% of patients, respectively, were the most important allergens, whereas the other S. kali allergens were less frequently recognized. Specific IgE levels were highest for profilin. Of note, 37% of patients who were negative for Sal k 1 showed IgE reactivity to Phl p 12, emphasizing the importance of the ubiquitous cytoskeletal actin-binding protein, profilin, for the diagnosis of IgE sensitization in S. kali-allergic patients. rPhl p 12 and rSal k 4 showed equivalent IgE reactivity, and the clinical importance of profilin was underlined by the fact that profilin-monosensitized patients suffered from symptoms of respiratory allergy to saltwort. Accordingly, profilin should be included in the panel of allergen molecules for diagnosis and in molecular allergy vaccines for the treatment and prevention of S. kali allergy.
Collapse
Affiliation(s)
- Ludmila Peterkova
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Daria Trifonova
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- Laboratory of Immunopathology, Department of Clinical Immunology and Allergy, Sechenov First Moscow State Medical University, Moscow, Russia
| | - Pia Gattinger
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Margarete Focke-Tejkl
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- Karl Landsteiner University, Krems an der Donau, Austria
| | - Victoria Garib
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- Ministry of Higher Education, Science and Innovation, Tashkent, Uzbekistan
| | - Nigora Magbulova
- International Center of Molecular Allergology, Ministry of Higher Education, Science and Innovation, Tashkent, Uzbekistan
| | - Gulnara Djambekova
- International Center of Molecular Allergology, Ministry of Higher Education, Science and Innovation, Tashkent, Uzbekistan
| | | | | | - Bulent Enis Sekerel
- Pediatric Allergy and Asthma Division, Hacettepe University School of Medicine, Ankara, Türkiye
| | - Sevda Tuten Dal
- Pediatric Allergy and Asthma Division, Hacettepe University School of Medicine, Ankara, Türkiye
| | - Mikhail Tulaev
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Michael Kundi
- Karl Landsteiner University, Krems an der Donau, Austria
- Department of Environmental Health, Center for Public Health, Medical University of Vienna, Vienna, Austria
| | - Walter Keller
- Institute of Molecular Biosciences, BioTechMed Graz, University of Graz, Graz, Austria
| | - Alexander Karaulov
- Laboratory of Immunopathology, Department of Clinical Immunology and Allergy, Sechenov First Moscow State Medical University, Moscow, Russia
| | - Rudolf Valenta
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- Laboratory of Immunopathology, Department of Clinical Immunology and Allergy, Sechenov First Moscow State Medical University, Moscow, Russia
- Karl Landsteiner University, Krems an der Donau, Austria
- National Research Center, National Research Center Institute of Immunology (NRCI) Institute of Immunology, Federal Medical-Biological Agency of Russia (FMBA), Moscow, Russia
| |
Collapse
|
6
|
Zbîrcea LE, Buzan MR, Grijincu M, Cotarcă MD, Tamaș TP, Haidar L, Tănasie G, Huțu I, Babaev E, Stolz F, Valenta R, Păunescu V, Panaitescu C, Chen KW. Heterogenous Induction of Blocking Antibodies against Ragweed Allergen Molecules by Allergen Extract-Based Immunotherapy Vaccines. Vaccines (Basel) 2024; 12:635. [PMID: 38932364 PMCID: PMC11209568 DOI: 10.3390/vaccines12060635] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 06/02/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024] Open
Abstract
Currently, allergen-specific immunotherapy (AIT) for ragweed allergy is still based on natural allergen extracts. This study aimed to analyse the ability of four commercially available AIT vaccines (CLUSTOID, TYRO-SIT, POLLINEX Quattro Plus and Diater Depot) regarding their ability to induce IgG antibodies against ragweed pollen allergens in rabbits. Accordingly, the IgG reactivity of AIT-induced rabbit sera was tested for ten different ragweed pollen allergens (Amb a 1, 3, 4, 5, 6, 8, 9, 10, 11 and 12) by an ELISA. Furthermore, the ability of rabbit AIT-specific sera to block allergic patients' IgE binding to relevant ragweed allergens (Amb a 1, 4, 6, 8 and 11) and to inhibit allergen-induced basophil activation was evaluated by an IgE inhibition ELISA and a mediator release assay. Only two AIT vaccines (Diater Depot > CLUSTOID) induced relevant IgG antibody levels to the major ragweed allergen Amb a 1. The IgG responses induced by the AIT vaccines against the other ragweed allergens were low and highly heterogeneous. Interestingly, the kinetics of IgG responses were different among the AIT vaccines and even within one AIT vaccine (Diater Depot) for Amb a 1 (long-lasting) versus Amb a 8 and Amb a 11 (short-lived). This could be due to variations in allergen contents, the immunogenicity of the allergens, and different immunization protocols. The IgE inhibition experiments showed that rabbit AIT-specific sera containing high allergen-specific IgG levels were able to inhibit patients' IgE binding and prevent the mediator release with Diater Depot. The high levels of allergen-specific IgG levels were associated with their ability to prevent the recognition of allergens by patients' IgE and allergen-induced basophil activation, indicating that the measurement of allergen-induced IgG could be a useful surrogate marker for the immunological efficacy of vaccines. Accordingly, the results of our study may be helpful for the selection of personalized AIT vaccination strategies for ragweed-allergic patients.
Collapse
Affiliation(s)
- Lauriana-Eunice Zbîrcea
- Center of Immuno-Physiology and Biotechnologies, Department of Functional Sciences, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania (L.H.)
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, 300723 Timisoara, Romania
| | - Maria-Roxana Buzan
- Center of Immuno-Physiology and Biotechnologies, Department of Functional Sciences, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania (L.H.)
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, 300723 Timisoara, Romania
| | - Manuela Grijincu
- Center of Immuno-Physiology and Biotechnologies, Department of Functional Sciences, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania (L.H.)
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, 300723 Timisoara, Romania
| | - Monica-Daniela Cotarcă
- Center of Immuno-Physiology and Biotechnologies, Department of Functional Sciences, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania (L.H.)
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, 300723 Timisoara, Romania
| | - Tudor-Paul Tamaș
- Center of Immuno-Physiology and Biotechnologies, Department of Functional Sciences, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania (L.H.)
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, 300723 Timisoara, Romania
| | - Laura Haidar
- Center of Immuno-Physiology and Biotechnologies, Department of Functional Sciences, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania (L.H.)
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, 300723 Timisoara, Romania
| | - Gabriela Tănasie
- Center of Immuno-Physiology and Biotechnologies, Department of Functional Sciences, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania (L.H.)
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, 300723 Timisoara, Romania
| | - Ioan Huțu
- Faculty of Veterinary Medicine, University of Life Sciences “King Mihai I of Romania”, 300645 Timișoara, Romania;
| | - Elijahu Babaev
- Vienna Competence Center, Biomay AG, 1090 Vienna, Austria
| | - Frank Stolz
- Vienna Competence Center, Biomay AG, 1090 Vienna, Austria
| | - Rudolf Valenta
- Center of Pathophysiology, Infectiology and Immunology, Department of Pathophysiology and Allergy Research, Division of Immunopathology, Medical University of Vienna, 1090 Vienna, Austria
- Laboratory for Immunopathology, Department of Clinical Immunology and Allergology, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
- Karl Landsteiner University of Health Sciences, 3500 Krems, Austria
- NRC Institute of Immunology FMBA of Russia, 115478 Moscow, Russia
| | - Virgil Păunescu
- Center of Immuno-Physiology and Biotechnologies, Department of Functional Sciences, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania (L.H.)
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, 300723 Timisoara, Romania
| | - Carmen Panaitescu
- Center of Immuno-Physiology and Biotechnologies, Department of Functional Sciences, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania (L.H.)
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, 300723 Timisoara, Romania
| | - Kuan-Wei Chen
- OncoGen Center, Pius Brinzeu County Clinical Emergency Hospital, 300723 Timisoara, Romania
| |
Collapse
|
7
|
Khaitov M, Shilovskiy I, Valenta R, Weber M, Korneev A, Tulaeva I, Gattinger P, van Hage M, Hofer G, Konradsen JR, Keller W, Akinfenwa O, Poroshina A, Ilina N, Fedenko E, Elisyutina O, Litovkina A, Smolnikov E, Nikonova A, Rybalkin S, Aldobaev V, Smirnov V, Shershakova N, Petukhova O, Kudlay D, Shatilov A, Timofeeva A, Campana R, Udin S, Skvortsova V. Recombinant PreS-fusion protein vaccine for birch pollen and apple allergy. Allergy 2024; 79:1001-1017. [PMID: 37855043 DOI: 10.1111/all.15919] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 09/12/2023] [Accepted: 09/25/2023] [Indexed: 10/20/2023]
Abstract
BACKGROUND IgE cross-sensitization to major birch pollen allergen Bet v 1 and pathogenesis-related (PR10) plant food allergens is responsible for the pollen-food allergy syndrome. METHODS We designed a recombinant protein, AB-PreS, consisting of non-allergenic peptides derived from the IgE-binding sites of Bet v 1 and the cross-reactive apple allergen, Mal d 1, fused to the PreS domain of HBV surface protein as immunological carrier. AB-PreS was expressed in E. coli and purified by chromatography. The allergenic and inflammatory activity of AB-PreS was tested using basophils and PBMCs from birch pollen allergic patients. The ability of antibodies induced by immunization of rabbits with AB-PreS and birch pollen extract-based vaccines to inhibit allergic patients IgE binding to Bet v 1 and Mal d 1 was assessed by ELISA. RESULTS IgE-binding experiments and basophil activation test revealed the hypoallergenic nature of AB-PreS. AB-PreS induced lower T-cell activation and inflammatory cytokine production in cultured PBMCs from allergic patients. IgG antibodies induced by five injections with AB-PreS inhibited allergic patients' IgE binding to Bet v 1 and Mal d 1 better than did IgG induced by up to 30 injections of six licensed birch pollen allergen extract-based vaccines. Additionally, immunization with AB-PreS induced HBV-specific antibodies potentially protecting from infection with HBV. CONCLUSION The recombinant AB-PreS-based vaccine is hypoallergenic and superior over currently registered allergen extract-based vaccines regarding the induction of blocking antibodies to Bet v 1 and Mal d 1 in animals.
Collapse
Affiliation(s)
- Musa Khaitov
- NRC Institute of Immunology, FMBA of Russia, Moscow, Russian Federation
- Pirogov Russian National Research Medical University, Moscow, Russian Federation
| | - Igor Shilovskiy
- NRC Institute of Immunology, FMBA of Russia, Moscow, Russian Federation
| | - Rudolf Valenta
- NRC Institute of Immunology, FMBA of Russia, Moscow, Russian Federation
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- Department of Clinical Immunology and Allergology, Laboratory of Immunopathology, Sechenov First Moscow State Medical University, Moscow, Russian Federation
- Karl Landsteiner University for Healthcare Sciences, Krems, Austria
| | - Milena Weber
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Artem Korneev
- NRC Institute of Immunology, FMBA of Russia, Moscow, Russian Federation
| | - Inna Tulaeva
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- Department of Clinical Immunology and Allergology, Laboratory of Immunopathology, Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Pia Gattinger
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Marianne van Hage
- Department of Medicine Solna, Division of Immunology and Allergy, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Gerhard Hofer
- Department of Materials and Environmental Chemistry, University of Stockholm, Stockholm, Sweden
| | - Jon R Konradsen
- Department of Women's and Children's Health, Astrid Lindgren Children's Hospital, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Walter Keller
- Institute of Molecular Biosciences, BioTechMed Graz, University of Graz, Graz, Austria
| | - Oluwatoyin Akinfenwa
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Alina Poroshina
- NRC Institute of Immunology, FMBA of Russia, Moscow, Russian Federation
| | - Nataliya Ilina
- NRC Institute of Immunology, FMBA of Russia, Moscow, Russian Federation
| | - Elena Fedenko
- NRC Institute of Immunology, FMBA of Russia, Moscow, Russian Federation
| | - Olga Elisyutina
- NRC Institute of Immunology, FMBA of Russia, Moscow, Russian Federation
- Peoples' Friendship University of Russia (RUDN University), Moscow, Russian Federation
| | - Alla Litovkina
- NRC Institute of Immunology, FMBA of Russia, Moscow, Russian Federation
- Peoples' Friendship University of Russia (RUDN University), Moscow, Russian Federation
| | - Evgenii Smolnikov
- NRC Institute of Immunology, FMBA of Russia, Moscow, Russian Federation
- Peoples' Friendship University of Russia (RUDN University), Moscow, Russian Federation
| | | | - Sergei Rybalkin
- Pirogov Russian National Research Medical University, Moscow, Russian Federation
| | - Vladimir Aldobaev
- Pirogov Russian National Research Medical University, Moscow, Russian Federation
| | - Valeriy Smirnov
- NRC Institute of Immunology, FMBA of Russia, Moscow, Russian Federation
- Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | | | - Olga Petukhova
- NRC Institute of Immunology, FMBA of Russia, Moscow, Russian Federation
| | - Dmitriy Kudlay
- NRC Institute of Immunology, FMBA of Russia, Moscow, Russian Federation
- Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Artem Shatilov
- NRC Institute of Immunology, FMBA of Russia, Moscow, Russian Federation
| | | | - Raffaela Campana
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Sergei Udin
- Federal State Budgetary Institution "Centre for Strategic Planning and Management of Biomedical Health Risks" of the Federal Medical Biological Agency, Moscow, Russian Federation
| | - Veronica Skvortsova
- Federal Medical Biological Agency of Russia (FMBA Russia), Moscow, Russian Federation
| |
Collapse
|
8
|
Hendrich JM, Reuter A, Jacob TP, Kara H, Amer S, Rödel K, Wöhrl BM. Allergenicity and structural properties of new Cor a 1 isoallergens from hazel identified in different plant tissues. Sci Rep 2024; 14:5618. [PMID: 38454094 PMCID: PMC10920870 DOI: 10.1038/s41598-024-55856-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 02/28/2024] [Indexed: 03/09/2024] Open
Abstract
The hazel allergen Cor a 1 is a PR-10 protein, closely related to the major birch pollen allergen Bet v 1. Hazel allergies are caused by cross-reactive IgE antibodies originally directed against Bet v 1. Despite the importance of PR-10 proteins in allergy development, their function and localization in the plant remain largely elusive. Therefore, the presence of Cor a 1 mRNA and proteins was investigated in different tissues, i.e., the female flower, immature and mature nuts, catkins, and pollen. Four yet unknown Cor a 1 isoallergens, i.e., Cor a 1.0501-1.0801, and one new Cor a 1.03 variant were discovered and characterized. Depending on the isoallergen, the occurrence and level of mRNA expression varied in different tissues, suggesting different functions. Interestingly, Cor a 1.04 previously thought to be only present in nuts, was also detected in catkins and pollen. The corresponding Cor a 1 genes were expressed in Escherichia coli. The purified proteins were analysed by CD and NMR spectroscopy. Immunoblots and ELISAs to determine their allergenic potential showed that the new proteins reacted positively with sera from patients allergic to birch, hazel and elder pollen and were recognized as novel isoallergens/variants by the WHO/IUIS Allergen Nomenclature Sub-Committee.
Collapse
Affiliation(s)
- Julian M Hendrich
- Lehrstuhl Biochemie IV - Biophysikalische Chemie, Universität Bayreuth, Universitätsstrasse 30, 95447, Bayreuth, Germany
| | - Andreas Reuter
- Division of Allergology, Paul-Ehrlich-Institut, 63225, Langen, Germany
| | - Thessa P Jacob
- Lehrstuhl Biochemie IV - Biophysikalische Chemie, Universität Bayreuth, Universitätsstrasse 30, 95447, Bayreuth, Germany
| | - Hatice Kara
- Lehrstuhl Biochemie IV - Biophysikalische Chemie, Universität Bayreuth, Universitätsstrasse 30, 95447, Bayreuth, Germany
| | - Sherine Amer
- Lehrstuhl Biochemie IV - Biophysikalische Chemie, Universität Bayreuth, Universitätsstrasse 30, 95447, Bayreuth, Germany
| | - Katharina Rödel
- Lehrstuhl Biochemie IV - Biophysikalische Chemie, Universität Bayreuth, Universitätsstrasse 30, 95447, Bayreuth, Germany
| | - Birgitta M Wöhrl
- Lehrstuhl Biochemie IV - Biophysikalische Chemie, Universität Bayreuth, Universitätsstrasse 30, 95447, Bayreuth, Germany.
| |
Collapse
|
9
|
Zheng W, Xu YF, Hu ZM, Li K, Xu ZQ, Sun JL, Wei JF. Artificial intelligence-driven design of the assembled major cat allergen Fel d 1 to improve its spatial folding and IgE-reactivity. Int Immunopharmacol 2024; 128:111488. [PMID: 38185034 DOI: 10.1016/j.intimp.2024.111488] [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: 10/16/2023] [Revised: 12/31/2023] [Accepted: 01/02/2024] [Indexed: 01/09/2024]
Abstract
BACKGROUND Cat-derived allergens are considered as one of the most common causes of allergic diseases worldwide. Fel d 1 is a major cat allergen and plays an important role in immunoglobulin E (IgE)-reaction diagnosis. However, the two separate chains of Fel d 1 exhibited lower IgE-reactivity than its complete molecule of an assembled form, which makes it difficult to efficiently prepare and limits the application of Fel d 1 in molecular diagnosis of cat allergy. METHODS We first applied artificial intelligence (AI) based tool AlphaFold2 to build the 3-dimensional structures of Fel d 1 with different connection modes between two chains, which were evaluated by ERRAT program and were expressed in Escherichia coli. We then calculated the expression ratios of soluble form/inclusion bodies form of optimized Fel d 1. The Circular Dichroism (CD), High Performance Liquid Chromatography-Size Exclusion Chromatography (HPLC-SEC) and reducing/non-reducing SDS-PAGE were performed to characterize the folding status and dimerization of the optimized fusion Fel d 1. The improvement of specific-IgE reactivity to optimized fusion Fel d 1 was investigated by enzyme linked immunosorbent assay (ELISA). RESULTS Among several linkers, 2 × GGGGS got the highest scores, with an overall quality factor of 100. The error value of the residues around the junction of 2 × GGGGS was lower than others. It exhibited highest proportion of soluble protein than other Fel d 1 constructs with ERRAT (GGGGS, KK as well as direct fusion Fel d 1). The results of CD and HPLC-SEC showed the consistent folding and dimerization of two fused subunits between the optimized fusion Fel d 1 and previously well-defined direct fusion Fel d 1. The overall IgE-binding absorbance of optimized fusion Fel d 1 tested by ELISA was improved compared with that of the direct fusion Fel d 1. CONCLUSION We firstly provided an AI-design strategy to optimize the Fel d 1, which could spontaneously fold into its native-like structure without additional refolding process or eukaryotic folding factors. The improved IgE-binding activity and simplified preparation method could greatly facilitate it to be a robust allergen material for molecular diagnosis of cat allergy.
Collapse
Affiliation(s)
- Wei Zheng
- Department of Pharmacy, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Yi-Fei Xu
- Department of Pharmacy, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Zhi-Ming Hu
- Department of Pharmacy, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Ke Li
- Department of Pharmacy, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Zhi-Qiang Xu
- Research Division of Clinical Pharmacology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China; National Vaccine Innovation Platform, Nanjing Medical University, Nanjing 211166, China.
| | - Jin-Lyu Sun
- Department of Allergy, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China.
| | - Ji-Fu Wei
- Department of Pharmacy, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China; Research Division of Clinical Pharmacology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China; National Vaccine Innovation Platform, Nanjing Medical University, Nanjing 211166, China.
| |
Collapse
|