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Zhang Y, Hu W, Chen D, Ding M, Wang T, Wang Y, Chi J, Li Z, Li Q, Li C. An allergenic plant calmodulin from Artemisia pollen primes human DCs leads to Th2 polarization. Front Immunol 2022; 13:996427. [PMID: 36248805 PMCID: PMC9556433 DOI: 10.3389/fimmu.2022.996427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 09/12/2022] [Indexed: 11/13/2022] Open
Abstract
Artemisia pollen is the major cause of seasonal allergic respiratory diseases in the northern hemisphere. About 28.57% of Artemisia allergic patients’ IgE can recognize ArtCaM, a novel allergenic calmodulin from Artemisia identified in this study. These patients exhibited stronger allergic reactions and a longer duration of allergic symptoms. However, the signaling mechanism that triggers these allergic reactions is not fully understood. In this study, we found that extracellular ArtCaM directly induces the maturation of human dendritic cells (DCs), which is attributed to a series of Ca2+ relevant cascades, including Ca2+/NFAT/CaMKs. ArtCaM alone induces inflammatory response toward Th1, Th17, and Treg. Interestingly, a combination of ArtCaM and anti-ArtCaM IgE led to Th2 polarization. The putative mechanism is that anti-ArtCaM IgE partially blocks the ArtCaM-induced ERK signal, but does not affect Ca2+-dependent cascades. The crosstalk between ERK and Ca2+ signal primes DCs maturation and Th2 polarization. In summary, ArtCaM related to clinical symptoms when combined with anti-ArtCaM IgE, could be a novel allergen to activate DCs and promote Th2 polarization. Such findings provide mechanistic insights into Th2 polarization in allergic sensitization and pave the way for novel preventive and therapeutic strategies for efficient management of such pollen allergic disease.
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Affiliation(s)
- Yue Zhang
- Chinese PLA Medical School, Chinese PLA General Hospital, Beijing, China
- Department of Dermatology, Air Force Medical Center, PLA, Beijing, China
- Department of Dermatology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Wenzhi Hu
- Department of Dermatology, Air Force Medical Center, PLA, Beijing, China
| | - Dongbo Chen
- Peking University People’s Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Disease, Beijing, China
| | - Ming Ding
- Department of Dermatology, Air Force Medical Center, PLA, Beijing, China
| | - Tao Wang
- Department of Dermatology, Air Force Medical Center, PLA, Beijing, China
| | - Yaojun Wang
- Department of Dermatology, Air Force Medical Center, PLA, Beijing, China
| | - Jiaoni Chi
- Department of Dermatology, Air Force Medical Center, PLA, Beijing, China
| | - Zhimin Li
- Department of Dermatology, Air Force Medical Center, PLA, Beijing, China
| | - Qiang Li
- Department of Dermatology, Air Force Medical Center, PLA, Beijing, China
- *Correspondence: Chengxin Li, ; Qiang Li,
| | - Chengxin Li
- Chinese PLA Medical School, Chinese PLA General Hospital, Beijing, China
- Department of Dermatology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
- *Correspondence: Chengxin Li, ; Qiang Li,
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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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Gadermaier E, James LK, Shamji MH, Blatt K, Fauland K, Zieglmayer P, Garmatiuk T, Focke‐Tejkl M, Villalba M, Beavil R, Keller W, Valent P, Durham SR, Gould HJ, Flicker S, Valenta R. Epitope specificity determines cross-protection of a SIT-induced IgG4 antibody. Allergy 2016. [PMID: 26221749 PMCID: PMC4716291 DOI: 10.1111/all.12710] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Background The calcium‐binding 2EF‐hand protein Phl p 7 from timothy grass pollen is a highly cross‐reactive pollen pan‐allergen that can induce severe clinical symptoms in allergic patients. Recently, a human monoclonal Phl p 7‐specific IgG4 antibody (mAb102.1F10) was isolated from a patient who had received grass pollen‐specific immunotherapy (SIT). Methods We studied epitope specificity, cross‐reactivity, affinity and cross‐protection of mAb102.1F10 towards homologous calcium‐binding pollen allergens. Sequence comparisons and molecular modelling studies were performed with ClustalW and SPADE, respectively. Surface plasmon resonance measurements were made with purified recombinant allergens. Binding and cross‐reactivity of patients' IgE and mAb102.1F10 to calcium‐binding allergens and peptides thereof were studied with quantitative RAST‐based methods, in ELISA, basophil activation and IgE‐facilitated allergen presentation experiments. Results Allergens from timothy grass (Phl p 7), alder (Aln g 4), birch (Bet v 4), turnip rape (Bra r 1), lamb's quarter (Che a 3) and olive (Ole e 3, Ole e 8) showed high sequence similarity and cross‐reacted with allergic patients' IgE. mAb102.1F10 bound the C‐terminal portion of Phl p 7 in a calcium‐dependent manner. It cross‐reacted with high affinity with Ole e 3, whereas binding and affinity to the other allergens were low. mAb102.1F10 showed limited cross‐inhibition of patients' IgE binding and basophil activation. Sequence comparison and surface exposure calculations identified three amino acids likely to be responsible for limited cross‐reactivity. Conclusions Our results demonstrate that a small number of amino acid differences among cross‐reactive allergens can reduce the affinity of binding by a SIT‐induced IgG and thus limit cross‐protection.
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Affiliation(s)
- E. Gadermaier
- Division of Immunopathology Department of Pathophysiology and Allergy Research Centre for Pathophysiology, Infectiology and Immunology Vienna General Hospital Medical University of Vienna Vienna Austria
| | - L. K. James
- Randall Division of Cell and Molecular Biophysics King's College London London UK
| | - M. H. Shamji
- Allergy and Clinical Immunology National Heart and Lung Institute Imperial College London London UK
| | - K. Blatt
- Division of Hematology and Hemostaseology Department of Internal Medicine I Vienna General Hospital Medical University of Vienna Vienna Austria
| | - K. Fauland
- Institute of Molecular Biosciences University of Graz Graz Austria
| | - P. Zieglmayer
- Vienna Challenge Chamber Allergy Centre Vienna West Vienna Austria
| | - T. Garmatiuk
- Division of Immunopathology Department of Pathophysiology and Allergy Research Centre for Pathophysiology, Infectiology and Immunology Vienna General Hospital Medical University of Vienna Vienna Austria
| | - M. Focke‐Tejkl
- Division of Immunopathology Department of Pathophysiology and Allergy Research Centre for Pathophysiology, Infectiology and Immunology Vienna General Hospital Medical University of Vienna Vienna Austria
| | - M. Villalba
- Departamento de Bioquımica y Biologıa Molecular I Universidad Complutense de Madrid Madrid Spain
| | - R. Beavil
- Randall Division of Cell and Molecular Biophysics King's College London London UK
| | - W. Keller
- Institute of Molecular Biosciences University of Graz Graz Austria
| | - P. Valent
- Division of Hematology and Hemostaseology Department of Internal Medicine I Vienna General Hospital Medical University of Vienna Vienna Austria
| | - S. R. Durham
- Allergy and Clinical Immunology National Heart and Lung Institute Imperial College London London UK
| | - H. J. Gould
- Randall Division of Cell and Molecular Biophysics King's College London London UK
| | - S. Flicker
- Division of Immunopathology Department of Pathophysiology and Allergy Research Centre for Pathophysiology, Infectiology and Immunology Vienna General Hospital Medical University of Vienna Vienna Austria
| | - R. Valenta
- Division of Immunopathology Department of Pathophysiology and Allergy Research Centre for Pathophysiology, Infectiology and Immunology Vienna General Hospital Medical University of Vienna Vienna Austria
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Moraes AH, Ackerbauer D, Kostadinova M, Bublin M, de Oliveira GA, Ferreira F, Almeida FCL, Breiteneder H, Valente AP. Solution and high-pressure NMR studies of the structure, dynamics, and stability of the cross-reactive allergenic cod parvalbumin Gad m 1. Proteins 2014; 82:3032-42. [PMID: 25116395 DOI: 10.1002/prot.24664] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 07/03/2014] [Accepted: 08/06/2014] [Indexed: 02/02/2023]
Abstract
Beta-parvalbumins from different fish species have been identified as the main elicitors of IgE-mediated reactions in fish-allergic individuals. Here, we report for the first time the NMR determination of the structure and dynamics of the major Atlantic cod (Gadus morhua) allergen Gad m 1 and compare them with other known parvalbumins. Although the Gad m 1 structure and accessibility of putative IgE epitopes are similar to parvalbumins in mackerel and carp, the charge distribution at the putative epitopes is different. The determination of the Gad m 1 structure contributes to a better understanding of cross-reactivity among fish parvalbumins. In addition, the high-pressure NMR and temperature variation experiments revealed the important contribution of the AB motif and other regions to the protein folding. This structural information could assist the future identification of hot spots for targeted mutations to develop hypoallergenic Ca(2+) -free forms for potential use in immunotherapy.
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Affiliation(s)
- Adolfo H Moraes
- Department of Structural Biology, Institute of Medical Biochemistry, National Center of Nuclear Magnetic Resonance, Federal University of Rio de Janeiro, Brazil
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