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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.
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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
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Tabesh S, Fanuel S, Fazlollahi MR, Yekaninejad MS, Kardar GA, Razavi SA. Design and evaluation of a hypoallergenic peptide-based vaccine for Salsola kali allergy. Int Immunopharmacol 2018; 66:62-68. [PMID: 30445308 DOI: 10.1016/j.intimp.2018.10.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 10/22/2018] [Accepted: 10/25/2018] [Indexed: 12/22/2022]
Abstract
BACKGROUND The Salsola kali (S. kali) pollen is one of the most important causes of allergic rhinitis in the deserts and semi-desert areas. Immunotherapy with allergen extracts remains the only available treatment addressing the underlying mechanism of allergy. However, given the low efficacy of this method, it is necessary to find more effective and alternative therapeutic interventions using molecular biology and bioinformatics tools. In this study, a hypoallergenic vaccine was designed on the basis of B-cell epitope approach for S. kali immunotherapy. METHODS Using the Immune Epitope Database (IEDB), a 35-mer peptide was selected and chemically conjugated to a keyhole limpet hemocyanin (KLH) molecule. Specific IgG and IgE from immunized BALB/c mice sera against the vaccine (Sal k 1-KLH), S. kali extract and the recombinant protein, rSal k 1, were measured using ELISA. Also, inhibition of IgE by mouse IgG was evaluated using an inhibitory ELISA. Finally, the IgE reactivity and T-cell reactivity of the designed vaccine were evaluated by dot blot assay and MTT assay. RESULTS Vaccination with the vaccine produced high levels of protective IgG in mice, which inhibited the binding of patients IgE to recombinant proteins. The result showed that the designed vaccine, unlike the recombinant protein and extract, did not induce T-cell lymphocytes response and also exhibited decreased IgE reactivity. CONCLUSION The designed vaccine can be considered as a promising candidate for therapeutic allergen-specific immunotherapy.
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Affiliation(s)
- Saeideh Tabesh
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Iran; Immunology Asthma & Allergy Research Institute, Tehran University of Medical Sciences, Iran
| | - Songwe Fanuel
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Iran; Department of Applied Biosciences and Biotechnology, Faculty of Science and Technology, Midlands State University (MSU), Zimbabwe
| | | | - Mir Saeed Yekaninejad
- Department of epidemiology and biostatics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Gholam Ali Kardar
- Immunology Asthma & Allergy Research Institute, Tehran University of Medical Sciences, Iran; Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Iran
| | - Seyed Alireza Razavi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Iran.
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Oeo-Santos C, Mas S, Quiralte J, Colás C, Blanca M, Fernández J, Feo Brito F, Villalba M, Barderas R. A Hypoallergenic Polygalacturonase Isoform from Olive Pollen Is Implicated in Pollen-Pollen Cross-Reactivity. Int Arch Allergy Immunol 2018; 177:290-301. [PMID: 30173224 DOI: 10.1159/000491027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 06/19/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Cross-reactivity reactions between allergenic polygalacturonases (PGs) from different biological sources, especially foods and pollens from the Oleaceae family, have been described using Salsola kali PG (Sal k 6). No PG from olive pollen has been characterized to date, hampering further knowledge about cross-reactions through PGs. OBJECTIVES The aim of this work was to determine the potential allergenicity of the PG from olive pollen and clarify its role in cross-reactivity. METHODS A cDNA-encoding olive pollen PG sequence was subcloned into the pET41b vector and used to transform BL21(DE3) Escherichia coli cells to produce a His-tag fusion recombinant protein. The allergenic properties of olive pollen PG were determined by immunoblotting and ELISA in comparison to Sal k 6. The cross-reactivity potential of the protein with other pollen sources was analyzed by inhibition immunoassays. RESULTS The existence of other isoforms of Ole e 14 with different allergenicity was confirmed by proteomics and a meta-analysis of the recently reported olive genome. Sal k 6 showed a higher IgE recognition than Ole e 14 regardless of patient sensitization, suggesting the existence of more allergenic Ole e 14 isoforms in olive pollen. IgG and IgE inhibition assays supported the existence of cross-reactions between them and with other PGs from Oleaceae and Poaceae plant families. CONCLUSIONS A new allergen from olive pollen, Ole e 14, has been identified, produced as a recombinant isoform, and structurally and immunologically characterized. Its role in cross-reactivity has been confirmed and, due to its smaller IgE binding capacity, it could have an important role for therapeutic purposes.
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Affiliation(s)
- Carmen Oeo-Santos
- Departamento Bioquímica y Biología Molecular I, Universidad Complutense de Madrid, Madrid, Spain
| | - Salvador Mas
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Valencia, Spain
| | - Joaquín Quiralte
- Departamento Alergología, Hospital Universitario Virgen del Rocío, Sevilla, Spain
| | - Carlos Colás
- Hospital Clínico Universitario "Lozano Blesa", Zaragoza, Spain
| | - Miguel Blanca
- Unidad de Alergología, Hospital Universitario Regional de Málaga-IBIMA, UMA, Málaga, Spain
| | - Javier Fernández
- Departamento Medicina Clínica, Universidad Miguel Hernández, Alicante, Spain
| | | | - Mayte Villalba
- Departamento Bioquímica y Biología Molecular I, Universidad Complutense de Madrid, Madrid,
| | - Rodrigo Barderas
- Departamento Bioquímica y Biología Molecular I, Universidad Complutense de Madrid, Madrid, Spain.,UFIEC, CROSADIS, ISCIII, Majadahonda, Spain
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Mas S, Oeo-Santos C, Cuesta-Herranz J, Díaz-Perales A, Colás C, Fernández J, Barber D, Rodríguez R, de los Ríos V, Barderas R, Villalba M. A relevant IgE-reactive 28 kDa protein identified from Salsola kali pollen extract by proteomics is a natural degradation product of an integral 47 kDa polygalaturonase. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2017; 1865:1067-1076. [DOI: 10.1016/j.bbapap.2017.05.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 04/07/2017] [Accepted: 05/08/2017] [Indexed: 12/29/2022]
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Major allergen from Amaranthus palmeri pollen is a profilin: Isolation, partial characterisation and IgE recognition. Allergol Immunopathol (Madr) 2016; 44:160-6. [PMID: 26316420 DOI: 10.1016/j.aller.2015.05.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 05/01/2015] [Accepted: 05/07/2015] [Indexed: 01/24/2023]
Abstract
BACKGROUND Pollens represent a rich source of proteins that are also potential elicitors of IgE-mediated pollen allergy. Sensitisation to panallergens could play an important role in diagnosis and specific immunotherapy, because these molecules are present in different plant pollens and plant foods and have marked structural similarity in different species. Profilins are one of the most common panallergens to be studied because they are responsible for a large number of sensitisations and are clearly related to cross-reactivity and co-sensitisation. This study aimed to isolate and characterise a new allergen of Amaranthus palmeri pollen and to determine its allergenicity. METHODS A. palmeri pollen profilin was purified using poly-l-proline-Sepharose affinity chromatography followed by anion exchanger chromatography. Identification of purified protein was carried out by mass spectrometry. Specific IgE was estimated in sera of patients with positive skin prick test to A. palmeri pollen extract, by enzyme-linked immunosorbent assay (ELISA). PRINCIPAL FINDINGS Purified protein appeared as a single band at 14 kDa in SDS-PAGE gel. Mass spectrometric analysis of the gel band identified two highly conserved peptides corresponding to allergenic profilins from pollen of other plants. Sera from about 60% of allergic patients have IgE that recognises the purified A. palmeri protein. CONCLUSION A 14 kDa protein of A. palmeri pollen was purified and identified as allergenic profilin, which was recognised by sera from pollen allergic patients.
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Mas S, Boissy P, Monsalve RI, Cuesta-Herranz J, Díaz-Perales A, Fernández J, Colás C, Rodríguez R, Barderas R, Villalba M. A Recombinant Sal k 1 Isoform as an Alternative to the Polymorphic Allergen from Salsola kali Pollen for Allergy Diagnosis. Int Arch Allergy Immunol 2015. [DOI: 10.1159/000434680] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Mas S, Torres M, Garrido-Arandia M, Salamanca G, Castro L, Barral P, Purohit A, Pauli G, Rodríguez R, Batanero E, Barderas R, Villalba M. Ash pollen immunoproteomics: identification, immunologic characterization, and sequencing of 6 new allergens. J Allergy Clin Immunol 2014; 133:923-6.e3. [PMID: 24418479 DOI: 10.1016/j.jaci.2013.10.061] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 09/20/2013] [Accepted: 10/17/2013] [Indexed: 11/18/2022]
Affiliation(s)
- Salvador Mas
- Dpto. Bioquímica y Biología Molecular I, Universidad Complutense de Madrid, Madrid, Spain
| | - María Torres
- Dpto. Bioquímica y Biología Molecular I, Universidad Complutense de Madrid, Madrid, Spain
| | - María Garrido-Arandia
- Dpto. Bioquímica y Biología Molecular I, Universidad Complutense de Madrid, Madrid, Spain; Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Campus de Montegancedo, Pozuelo de Alarcón, Madrid, Spain
| | - Guillermo Salamanca
- Dpto. Bioquímica y Biología Molecular I, Universidad Complutense de Madrid, Madrid, Spain; ALK-Abelló, Madrid, Spain
| | - Lourdes Castro
- Dpto. Bioquímica y Biología Molecular I, Universidad Complutense de Madrid, Madrid, Spain; ALK-Abelló, Madrid, Spain
| | - Patricia Barral
- Dpto. Bioquímica y Biología Molecular I, Universidad Complutense de Madrid, Madrid, Spain; The Peter Gorer Department of Immunobiology, Guy's Hospital, King's College London, London, United Kingdom
| | - Ashok Purohit
- Service de Pneumologie, Hôpital Lyautey, Hopitaux Universitaires de Strasbourg, France
| | - Gabrielle Pauli
- Service de Pneumologie, Hôpital Lyautey, Hopitaux Universitaires de Strasbourg, France
| | - Rosalía Rodríguez
- Dpto. Bioquímica y Biología Molecular I, Universidad Complutense de Madrid, Madrid, Spain
| | - Eva Batanero
- Dpto. Bioquímica y Biología Molecular I, Universidad Complutense de Madrid, Madrid, Spain
| | - Rodrigo Barderas
- Dpto. Bioquímica y Biología Molecular I, Universidad Complutense de Madrid, Madrid, Spain.
| | - Mayte Villalba
- Dpto. Bioquímica y Biología Molecular I, Universidad Complutense de Madrid, Madrid, Spain
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Castro L, Mas S, Barderas R, Colás C, García-Sellés J, Barber D, Rodríguez R, Villalba M. Sal k 5, a Member of the Widespread Ole e 1-Like Protein Family, Is a New Allergen of Russian Thistle (Salsola kali) Pollen. Int Arch Allergy Immunol 2013; 163:142-53. [DOI: 10.1159/000356345] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Accepted: 10/09/2013] [Indexed: 11/19/2022] Open
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