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da Silva Antunes R, Weiskopf D, Sidney J, Rubiro P, Peters B, Arlehamn CSL, Grifoni A, Sette A. The MegaPool Approach to Characterize Adaptive CD4+ and CD8+ T Cell Responses. Curr Protoc 2023; 3:e934. [PMID: 37966108 PMCID: PMC10662678 DOI: 10.1002/cpz1.934] [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] [Indexed: 11/16/2023]
Abstract
Epitopes recognized by T cells are a collection of short peptide fragments derived from specific antigens or proteins. Immunological research to study T cell responses is hindered by the extreme degree of heterogeneity of epitope targets, which are usually derived from multiple antigens; within a given antigen, hundreds of different T cell epitopes can be recognized, differing from one individual to the next because T cell epitope recognition is restricted by the epitopes' ability to bind to MHC molecules, which are extremely polymorphic in different individuals. Testing large pools encompassing hundreds of peptides is technically challenging because of logistical considerations regarding solvent-induced toxicity. To address this issue, we developed the MegaPool (MP) approach based on sequential lyophilization of large numbers of peptides that can be used in a variety of assays to measure T cell responses, including ELISPOT, intracellular cytokine staining, and activation-induced marker assays, and that has been validated in the study of infectious diseases, allergies, and autoimmunity. Here, we describe the procedures for generating and testing MPs, starting with peptide synthesis and lyophilization, as well as a step-by-step guide and recommendations for their handling and experimental usage. Overall, the MP approach is a powerful strategy for studying T cell responses and understanding the immune system's role in health and disease. © 2023 Wiley Periodicals LLC. Basic Protocol 1: Generation of peptide pools ("MegaPools") Basic Protocol 2: MegaPool testing and quantitation of antigen-specific T cell responses.
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Affiliation(s)
- Ricardo da Silva Antunes
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI); La Jolla, CA, USA
| | - Daniela Weiskopf
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI); La Jolla, CA, USA
| | - John Sidney
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI); La Jolla, CA, USA
| | - Paul Rubiro
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI); La Jolla, CA, USA
| | - Bjoern Peters
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI); La Jolla, CA, USA
- Department of Medicine, Division of Infectious Diseases and Global Public Health, University of California, San Diego (UCSD), La Jolla, CA, USA
| | | | - Alba Grifoni
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI); La Jolla, CA, USA
| | - Alessandro Sette
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI); La Jolla, CA, USA
- Department of Medicine, Division of Infectious Diseases and Global Public Health, University of California, San Diego (UCSD), La Jolla, CA, USA
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Lewis SA, Sutherland A, Soldevila F, Westernberg L, Aoki M, Frazier A, Maiche S, Erlewyn-Lajeunesse M, Arshad H, Leonard S, Laubach S, Dantzer JA, Wood RA, Sette A, Seumois G, Vijayanand P, Peters B. Identification of cow milk epitopes to characterize and quantify disease-specific T cells in allergic children. J Allergy Clin Immunol 2023; 152:1196-1209. [PMID: 37604312 PMCID: PMC10846667 DOI: 10.1016/j.jaci.2023.07.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 07/12/2023] [Accepted: 07/31/2023] [Indexed: 08/23/2023]
Abstract
BACKGROUND Cow milk (CM) allergy is the most prevalent food allergy in young children in the United States and Great Britain. Current diagnostic tests are either unreliable (IgE test and skin prick test) or resource-intensive with risks (food challenges). OBJECTIVE We sought to determine whether allergen-specific T cells in CM-allergic (CMA) patients have a distinct quality and/or quantity that could potentially be used as a diagnostic marker. METHODS Using PBMCs from 147 food-allergic pediatric subjects, we mapped T-cell responses to a set of reactive epitopes in CM that we compiled in a peptide pool. This pool induced cytokine responses in in vitro cultured cells distinguishing subjects with CMA from subjects without CMA. We further used the pool to isolate and characterize antigen-specific CD4 memory T cells using flow cytometry and single-cell RNA/TCR sequencing assays. RESULTS We detected significant changes in the transcriptional program and clonality of CM antigen-specific (CM+) T cells elicited by the pool in subjects with CMA versus subjects without CMA ex vivo. CM+ T cells from subjects with CMA had increased percentages of FOXP3+ cells over FOXP3- cells. FOXP3+ cells are often equated with regulatory T cells that have suppressive activity, but CM+ FOXP3+ cells from subjects with CMA showed significant expression of interferon-responsive genes and dysregulated chemokine receptor expression compared with subjects without CMA, suggesting that these are not conventional regulatory T cells. The CM+ FOXP3+ cells were also more clonally expanded than the FOXP3- population. We were further able to use surface markers (CD25, CD127, and CCR7) in combination with our peptide pool stimulation to quantify these CM+ FOXP3+ cells by a simple flow-cytometry assay. We show increased percentages of CM+ CD127-CD25+ cells from subjects with CMA in an independent cohort, which could be used for diagnostic purposes. Looking specifically for TH2 cells normally associated with allergic diseases, we found a small population of clonally expanded CM+ cells that were significantly increased in subjects with CMA and that had high expression of TH2 cytokines and pathogenic TH2/T follicular helper markers. CONCLUSIONS Overall, these findings suggest that there are several differences in the phenotypes of CM+ T cells with CM allergy and that the increase in CM+ FOXP3+ cells is a potential diagnostic marker of an allergic state. Such markers have promising applications in monitoring natural disease outgrowth and/or the efficacy of immunotherapy that will need to be validated in future studies.
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Affiliation(s)
| | | | | | | | - Minori Aoki
- La Jolla Institute for Immunology, San Diego, Calif
| | | | | | - Mich Erlewyn-Lajeunesse
- University Hospital Southampton, Southampton, United Kingdom; Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Hasan Arshad
- University Hospital Southampton, Southampton, United Kingdom; Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Stephanie Leonard
- Division of Allergy and Immunology, Department of Pediatrics, University of California San Diego, Rady Children's Hospital, San Diego, Calif
| | - Susan Laubach
- Division of Allergy and Immunology, Department of Pediatrics, University of California San Diego, Rady Children's Hospital, San Diego, Calif
| | - Jennifer A Dantzer
- Division of Allergy and Immunology, Department of Pediatrics, The Johns Hopkins University School of Medicine, Baltimore, Md
| | - Robert A Wood
- Division of Allergy and Immunology, Department of Pediatrics, The Johns Hopkins University School of Medicine, Baltimore, Md
| | - Alessandro Sette
- La Jolla Institute for Immunology, San Diego, Calif; Department of Medicine, University of California San Diego, San Diego, Calif
| | | | - Pandurangan Vijayanand
- La Jolla Institute for Immunology, San Diego, Calif; Department of Medicine, University of California San Diego, San Diego, Calif
| | - Bjoern Peters
- La Jolla Institute for Immunology, San Diego, Calif; Department of Medicine, University of California San Diego, San Diego, Calif.
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Reginald K, Chew FT. Current practices and future trends in cockroach allergen immunotherapy. Mol Immunol 2023; 161:11-24. [PMID: 37480600 DOI: 10.1016/j.molimm.2023.07.004] [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: 09/30/2022] [Revised: 07/02/2023] [Accepted: 07/05/2023] [Indexed: 07/24/2023]
Abstract
PURPOSE OF REVIEW This review evaluates the current modes of allergen-specific immunotherapy for cockroach allergens, in terms of clinical outcomes and explores future trends in the research and development needed for a more targeted cockroach immunotherapy approach with the best efficacy and minimum adverse effects. SUMMARY Cockroach allergy is an important risk factor for allergic rhinitis in the tropics, that disproportionately affects children and young adults and those living in poor socio-economic environments. Immunotherapy would provide long-lasting improvement in quality of life, with reduced medication intake. However, the present treatment regime is long and has a risk of adverse effects. In addition, cockroach does not seem to have an immuno-dominant allergen, that has been traditionally used to treat allergies from other sources. Future trends of cockroach immunotherapy involve precision diagnosis, to correctly identify the offending allergen. Next, precision immunotherapy with standardized allergens, which have been processed in a way that maintains an immunological response without allergic reactions. This approach can be coupled with modern adjuvants and delivery systems that promote a Th1/Treg environment, thereby modulating the immune response away from the allergenic response.
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Affiliation(s)
- Kavita Reginald
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Bandar Sunway 47500, Selangor, Malaysia.
| | - Fook Tim Chew
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
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Pomés A, Arruda LK. Cockroach allergy: Understanding complex immune responses to develop novel therapies. Mol Immunol 2023; 156:157-169. [PMID: 36930991 PMCID: PMC10134214 DOI: 10.1016/j.molimm.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 01/24/2023] [Accepted: 03/01/2023] [Indexed: 03/17/2023]
Abstract
Cockroach allergy is associated with the development of asthma. The identification of cockroach allergens, which began in the 1990 s, is an ongoing process that has led to the current listing of 20 official allergen groups in the WHO/IUIS Allergen Nomenclature database. The function and structure of some of these allergens has been determined and define their natural delivery into the environment and their allergenicity. Analysis of antigenic determinants by X-ray crystallography and rational design of site-directed mutagenesis led to the identification of IgE binding sites for the design of molecules with reduced IgE reactivity and T cell modulatory capacity. New developments in recent years include component analyses of B and T cell reactivity and a recent cockroach immunotherapy trial, CRITICAL, that will contribute to understand the immune response to cockroach and to define future directions for cockroach allergy diagnosis and immunotherapy.
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Affiliation(s)
- Anna Pomés
- Director of Basic Research, InBio, 700 Harris Street, Charlottesville, VA 22903, USA.
| | - L Karla Arruda
- Professor of Medicine, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Ribeirão Preto, SP 14049-900, Brazil
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5
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Dramburg S, Hilger C, Santos AF, de Las Vecillas L, Aalberse RC, Acevedo N, Aglas L, Altmann F, Arruda KL, Asero R, Ballmer-Weber B, Barber D, Beyer K, Biedermann T, Bilo MB, Blank S, Bosshard PP, Breiteneder H, Brough HA, Bublin M, Campbell D, Caraballo L, Caubet JC, Celi G, Chapman MD, Chruszcz M, Custovic A, Czolk R, Davies J, Douladiris N, Eberlein B, Ebisawa M, Ehlers A, Eigenmann P, Gadermaier G, Giovannini M, Gomez F, Grohman R, Guillet C, Hafner C, Hamilton RG, Hauser M, Hawranek T, Hoffmann HJ, Holzhauser T, Iizuka T, Jacquet A, Jakob T, Janssen-Weets B, Jappe U, Jutel M, Kalic T, Kamath S, Kespohl S, Kleine-Tebbe J, Knol E, Knulst A, Konradsen JR, Korošec P, Kuehn A, Lack G, Le TM, Lopata A, Luengo O, Mäkelä M, Marra AM, Mills C, Morisset M, Muraro A, Nowak-Wegrzyn A, Nugraha R, Ollert M, Palosuo K, Pastorello EA, Patil SU, Platts-Mills T, Pomés A, Poncet P, Potapova E, Poulsen LK, Radauer C, Radulovic S, Raulf M, Rougé P, Sastre J, Sato S, Scala E, Schmid JM, Schmid-Grendelmeier P, Schrama D, Sénéchal H, Traidl-Hoffmann C, Valverde-Monge M, van Hage M, van Ree R, Verhoeckx K, Vieths S, Wickman M, Zakzuk J, Matricardi PM, Hoffmann-Sommergruber K. EAACI Molecular Allergology User's Guide 2.0. Pediatr Allergy Immunol 2023; 34 Suppl 28:e13854. [PMID: 37186333 DOI: 10.1111/pai.13854] [Citation(s) in RCA: 63] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 09/05/2022] [Indexed: 05/17/2023]
Abstract
Since the discovery of immunoglobulin E (IgE) as a mediator of allergic diseases in 1967, our knowledge about the immunological mechanisms of IgE-mediated allergies has remarkably increased. In addition to understanding the immune response and clinical symptoms, allergy diagnosis and management depend strongly on the precise identification of the elicitors of the IgE-mediated allergic reaction. In the past four decades, innovations in bioscience and technology have facilitated the identification and production of well-defined, highly pure molecules for component-resolved diagnosis (CRD), allowing a personalized diagnosis and management of the allergic disease for individual patients. The first edition of the "EAACI Molecular Allergology User's Guide" (MAUG) in 2016 rapidly became a key reference for clinicians, scientists, and interested readers with a background in allergology, immunology, biology, and medicine. Nevertheless, the field of molecular allergology is moving fast, and after 6 years, a new EAACI Taskforce was established to provide an updated document. The Molecular Allergology User's Guide 2.0 summarizes state-of-the-art information on allergen molecules, their clinical relevance, and their application in diagnostic algorithms for clinical practice. It is designed for both, clinicians and scientists, guiding health care professionals through the overwhelming list of different allergen molecules available for testing. Further, it provides diagnostic algorithms on the clinical relevance of allergenic molecules and gives an overview of their biology, the basic mechanisms of test formats, and the application of tests to measure allergen exposure.
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Affiliation(s)
- Stephanie Dramburg
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Christiane Hilger
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Alexandra F Santos
- Department of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, United Kingdom
- Children's Allergy Service, Evelina London, Guy's and St Thomas' Hospital, London, United Kingdom
| | | | - Rob C Aalberse
- Sanquin Research, Dept Immunopathology, University of Amsterdam, Amsterdam, The Netherlands
- Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - Nathalie Acevedo
- Institute for Immunological Research, University of Cartagena, Cartagena de Indias, Colombia, Colombia
| | - Lorenz Aglas
- Department of Biosciences and Medical Biology, Paris Lodron University Salzburg, Salzburg, Austria
| | - Friedrich Altmann
- Department of Chemistry, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Karla L Arruda
- Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Sao Paulo, Brasil, Brazil
| | - Riccardo Asero
- Ambulatorio di Allergologia, Clinica San Carlo, Paderno Dugnano, Italy
| | - Barbara Ballmer-Weber
- Klinik für Dermatologie und Allergologie, Kantonsspital St. Gallen, St. Gallen, Switzerland
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Domingo Barber
- Institute of Applied Molecular Medicine Nemesio Diez (IMMAND), Department of Basic Medical Sciences, Facultad de Medicina, Universidad San Pablo CEU, CEU Universities, Madrid, Spain
- RETIC ARADyAL and RICORS Enfermedades Inflamatorias (REI), Madrid, Spain
| | - Kirsten Beyer
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Tilo Biedermann
- Department of Dermatology and Allergy Biederstein, School of Medicine, Technical University Munich, Munich, Germany
| | - Maria Beatrice Bilo
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy
- Allergy Unit Department of Internal Medicine, University Hospital Ospedali Riuniti di Ancona, Torrette, Italy
| | - Simon Blank
- Center of Allergy and Environment (ZAUM), Technical University of Munich, School of Medicine and Helmholtz Center Munich, German Research Center for Environmental Health, Munich, Germany
| | - Philipp P Bosshard
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Heimo Breiteneder
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Helen A Brough
- Department of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
- Children's Allergy Service, Evelina London, Guy's and St Thomas' Hospital, London, United Kingdom
| | - Merima Bublin
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Dianne Campbell
- Department of Allergy and Immunology, Children's Hospital at Westmead, Sydney Children's Hospitals Network, Sydney, New South Wales, Australia
- Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Luis Caraballo
- Institute for Immunological Research, University of Cartagena, Cartagena de Indias, Colombia, Colombia
| | - Jean Christoph Caubet
- Pediatric Allergy Unit, Department of Child and Adolescent, University Hospitals of Geneva, Geneva, Switzerland
| | - Giorgio Celi
- Centro DH Allergologia e Immunologia Clinica ASST- MANTOVA (MN), Mantova, Italy
| | | | - Maksymilian Chruszcz
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, USA
| | - Adnan Custovic
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Rebecca Czolk
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Faculty of Science, Technology and Medicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Janet Davies
- Queensland University of Technology, Centre for Immunology and Infection Control, School of Biomedical Sciences, Herston, Queensland, Australia
- Metro North Hospital and Health Service, Emergency Operations Centre, Herston, Queensland, Australia
| | - Nikolaos Douladiris
- Allergy Department, 2nd Paediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Bernadette Eberlein
- Department of Dermatology and Allergy Biederstein, School of Medicine, Technical University Munich, Munich, Germany
| | - Motohiro Ebisawa
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization, Sagamihara National Hospital, Kanagawa, Japan
| | - Anna Ehlers
- Chemical Biology and Drug Discovery, Utrecht University, Utrecht, The Netherlands
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
- Department of Immunology and Dermatology/ Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Philippe Eigenmann
- Pediatric Allergy Unit, Department of Child and Adolescent, University Hospitals of Geneva, Geneva, Switzerland
| | - Gabriele Gadermaier
- Department of Biosciences and Medical Biology, Paris Lodron University Salzburg, Salzburg, Austria
| | - Mattia Giovannini
- Allergy Unit, Department of Pediatrics, Meyer Children's University Hospital, Florence, Italy
| | - Francisca Gomez
- Allergy Unit IBIMA-Hospital Regional Universitario de Malaga, Malaga, Spain
- Spanish Network for Allergy research RETIC ARADyAL, Malaga, Spain
| | - Rebecca Grohman
- NYU Langone Health, Department of Internal Medicine, New York, New York, USA
| | - Carole Guillet
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
- Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - Christine Hafner
- Department of Dermatology, University Hospital St. Poelten, Karl Landsteiner University of Health Sciences, St. Poelten, Austria
| | - Robert G Hamilton
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Michael Hauser
- Department of Biosciences and Medical Biology, Paris Lodron University Salzburg, Salzburg, Austria
| | - Thomas Hawranek
- Department of Dermatology and Allergology, Paracelsus Private Medical University, Salzburg, Austria
| | - Hans Jürgen Hoffmann
- Institute for Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
- Department of Respiratory Diseases and Allergy, Aarhus University Hospital, Aarhus, Denmark
| | | | - Tomona Iizuka
- Laboratory of Protein Science, Graduate School of Life Science, Hokkaido University, Sapporo, Japan
| | - Alain Jacquet
- Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Thilo Jakob
- Department of Dermatology and Allergology, University Medical Center, Justus Liebig University Gießen, Gießen, Germany
| | - Bente Janssen-Weets
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Odense Research Center for Anaphylaxis, University of Southern Denmark, Odense, Denmark
| | - Uta Jappe
- Division of Clinical and Molecular Allergology, Priority Research Area Asthma and Allergy, Research Center Borstel, Borstel, Germany
- Leibniz Lung Center, Airway Research Center North (ARCN), Member of the German Center for Lung Research, Germany
- Interdisciplinary Allergy Outpatient Clinic, Dept. of Pneumology, University of Lübeck, Lübeck, Germany
| | - Marek Jutel
- Department of Clinical Immunology, Wroclaw Medical University, Wroclaw, Poland
| | - Tanja Kalic
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
- Department of Dermatology, University Hospital St. Poelten, Karl Landsteiner University of Health Sciences, St. Poelten, Austria
| | - Sandip Kamath
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, Queensland, Australia
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia
| | - Sabine Kespohl
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr- Universität Bochum, Bochum, Germany
| | - Jörg Kleine-Tebbe
- Allergy & Asthma Center Westend, Outpatient Clinic and Clinical Research Center, Berlin, Germany
| | - Edward Knol
- Department of Immunology and Dermatology/ Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - André Knulst
- Department of Immunology and Dermatology/ Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Jon R Konradsen
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
- Pediatric Allergy and Pulmonology Unit at Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Peter Korošec
- University Clinic of Respiratory and Allergic Diseases Golnik, Golnik, Slovenia
- Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
| | - Annette Kuehn
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Gideon Lack
- Department of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, United Kingdom
- Children's Allergy Service, Evelina London, Guy's and St Thomas' Hospital, London, United Kingdom
| | - Thuy-My Le
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
- Department of Immunology and Dermatology/ Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Andreas Lopata
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, Queensland, Australia
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia
| | - Olga Luengo
- RETIC ARADyAL and RICORS Enfermedades Inflamatorias (REI), Madrid, Spain
- Allergy Section, Internal Medicine Department, Vall d'Hebron University Hospital, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Mika Mäkelä
- Division of Allergy, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
- Pediatric Department, Skin and Allergy Hospital, Helsinki University Central Hospital, Helsinki, Finland
| | | | - Clare Mills
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Manchester Institute of Biotechnology, The University of Manchester, Manchester, UK
| | | | - Antonella Muraro
- Food Allergy Referral Centre, Department of Woman and Child Health, Padua University Hospital, Padua, Italy
| | - Anna Nowak-Wegrzyn
- Division of Pediatric Allergy and Immunology, NYU Grossman School of Medicine, Hassenfeld Children's Hospital, New York, New York, USA
- Department of Pediatrics, Gastroenterology and Nutrition, Collegium Medicum, University of Warmia and Mazury, Olsztyn, Poland
| | - Roni Nugraha
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia
- Department of Aquatic Product Technology, Faculty of Fisheries and Marine Science, IPB University, Bogor, Indonesia
| | - Markus Ollert
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Odense Research Center for Anaphylaxis, University of Southern Denmark, Odense, Denmark
| | - Kati Palosuo
- Department of Allergology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | | | - Sarita Ulhas Patil
- Division of Rheumatology, Allergy and Immunology, Departments of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Division of Allergy and Immunology, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Thomas Platts-Mills
- Division of Allergy and Clinical Immunology, University of Virginia, Charlottesville, Virginia, USA
| | | | - Pascal Poncet
- Institut Pasteur, Immunology Department, Paris, France
- Allergy & Environment Research Team Armand Trousseau Children Hospital, APHP, Paris, France
| | - Ekaterina Potapova
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Lars K Poulsen
- Allergy Clinic, Department of Dermatology and Allergy, Copenhagen University Hospital-Herlev and Gentofte, Copenhagen, Denmark
| | - Christian Radauer
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Suzana Radulovic
- Department of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
- Children's Allergy Service, Evelina London, Guy's and St Thomas' Hospital, London, United Kingdom
| | - Monika Raulf
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr- Universität Bochum, Bochum, Germany
| | - Pierre Rougé
- UMR 152 PharmaDev, IRD, Université Paul Sabatier, Faculté de Pharmacie, Toulouse, France
| | - Joaquin Sastre
- Allergy Service, Fundación Jiménez Díaz; CIBER de Enfermedades Respiratorias (CIBERES); Faculty of Medicine, Universidad Autonoma de Madrid, Madrid, Spain
| | - Sakura Sato
- Allergy Department, 2nd Paediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Enrico Scala
- Clinical and Laboratory Molecular Allergy Unit - IDI- IRCCS, Fondazione L M Monti Rome, Rome, Italy
| | - Johannes M Schmid
- Department of Respiratory Diseases and Allergy, Aarhus University Hospital, Aarhus, Denmark
| | - Peter Schmid-Grendelmeier
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
- Christine Kühne Center for Allergy Research and Education CK-CARE, Davos, Switzerland
| | - Denise Schrama
- Centre of Marine Sciences (CCMAR), Universidade do Algarve, Faro, Portugal
| | - Hélène Sénéchal
- Allergy & Environment Research Team Armand Trousseau Children Hospital, APHP, Paris, France
| | - Claudia Traidl-Hoffmann
- Christine Kühne Center for Allergy Research and Education CK-CARE, Davos, Switzerland
- Department of Environmental Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany
| | - Marcela Valverde-Monge
- Allergy Service, Fundación Jiménez Díaz; CIBER de Enfermedades Respiratorias (CIBERES); Faculty of Medicine, Universidad Autonoma de Madrid, Madrid, Spain
| | - Marianne van Hage
- Department of Medicine Solna, Division of Immunology and Allergy, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Immunology and Transfusion Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Ronald van Ree
- Department of Experimental Immunology and Department of Otorhinolaryngology, Amsterdam University Medical Centers, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Kitty Verhoeckx
- Department of Immunology and Dermatology/ Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Stefan Vieths
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - Magnus Wickman
- Department of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Josefina Zakzuk
- Institute for Immunological Research, University of Cartagena, Cartagena de Indias, Colombia, Colombia
| | - Paolo M Matricardi
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany
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6
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Yu ED, Wang E, Garrigan E, Sutherland A, Khalil N, Kearns K, Pham J, Schulten V, Peters B, Frazier A, Sette A, da Silva Antunes R. Ex vivo assays show human gamma-delta T cells specific for common allergens are Th1-polarized in allergic donors. CELL REPORTS METHODS 2022; 2:100350. [PMID: 36590684 PMCID: PMC9795325 DOI: 10.1016/j.crmeth.2022.100350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 08/15/2022] [Accepted: 10/28/2022] [Indexed: 11/23/2022]
Abstract
Gamma-delta (γδ) T cells contribute to the pathology of many immune-related diseases; however, no ex vivo assays to study their activities are currently available. Here, we established a methodology to characterize human allergen-reactive γδ T cells in peripheral blood using an activation-induced marker assay targeting upregulated 4-1BB and CD69 expression. Broad and reproducible ex vivo allergen-reactive γδ T cell responses were detected in donors sensitized to mouse, cockroach, house dust mite, and timothy grass, but the response did not differ from that in non-allergic participants. The reactivity to 4 different allergen extracts was readily detected in 54.2%-100% of allergic subjects in a donor- and allergen-specific pattern and was abrogated by T cell receptor (TCR) blocking. Analysis of CD40L upregulation and intracellular cytokine staining revealed a T helper type 1 (Th1)-polarized response against mouse and cockroach extract stimulation. These results support the existence of allergen-reactive γδ T cells and their potential use in rebalancing dysregulated Th2 responses in allergic diseases.
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Affiliation(s)
- Esther Dawen Yu
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - Eric Wang
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - Emily Garrigan
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - Aaron Sutherland
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - Natalie Khalil
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - Kendall Kearns
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
- Biomedical Sciences Graduate Program, University of California San Diego, La Jolla, CA 92093, USA
| | - John Pham
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - Veronique Schulten
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - Bjoern Peters
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
- Department of Medicine, Division of Infectious Diseases and Global Public Health, University of California, San Diego (UCSD), La Jolla, CA 92037, USA
| | - April Frazier
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - Alessandro Sette
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
- Department of Medicine, Division of Infectious Diseases and Global Public Health, University of California, San Diego (UCSD), La Jolla, CA 92037, USA
| | - Ricardo da Silva Antunes
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
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7
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Lee S, Kim JY, Yi MH, Lee IY, Yong D, Yong TS. Reduced production of the major allergens Bla g 1 and Bla g 2 in Blattella germanica after antibiotic treatment. PLoS One 2021; 16:e0257114. [PMID: 34813599 PMCID: PMC8610280 DOI: 10.1371/journal.pone.0257114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 11/06/2021] [Indexed: 12/13/2022] Open
Abstract
PURPOSE Allergens present in the feces or frass of cockroaches can cause allergic sensitization in humans. The use of fecal and frass extracts for immunotherapy has been previously investigated but has not yet been fully standardized. Here, we treated cockroaches with ampicillin to produce extracts with reduced amounts of total bacteria. METHODS We performed targeted high-throughput sequencing of 16S rDNA to compare the microbiomes of ampicillin-treated and untreated (control) cockroaches. RNA-seq was performed to identify differentially expressed genes (DEGs) in ampicillin-treated cockroaches. RESULTS Analysis of the microbiome revealed that alpha diversity was lower in the ampicillin-treated group than in the control group. Beta diversity analysis indicated that ampicillin treatment altered bacterial composition in the microbiome of cockroaches. Quantitative polymerase chain reaction revealed that almost all bacteria were removed from ampicillin-treated cockroaches. RNA-seq analysis revealed 1,236 DEGs in ampicillin-treated cockroaches (compared to untreated cockroaches). Unlike bacterial composition, the DEGs varied between the two groups. Among major allergens, the expression of Bla g 2 decreased significantly in ampicillin-treated cockroaches (compared to untreated group). CONCLUSIONS In this study, the reduced level of allergens observed in cockroaches may be related to lower amounts of total bacteria caused by treatment with antibiotics. It is possible to make a protein extract with few bacteria for use in immunotherapy.
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Affiliation(s)
- Seogwon Lee
- Department of Environmental Medical Biology, Institute of Tropical Medicine and Arthropods of Medical Importance Resource Bank, Yonsei University College of Medicine, Seoul, Korea
| | - Ju Yeong Kim
- Department of Environmental Medical Biology, Institute of Tropical Medicine and Arthropods of Medical Importance Resource Bank, Yonsei University College of Medicine, Seoul, Korea
| | - Myung-Hee Yi
- Department of Environmental Medical Biology, Institute of Tropical Medicine and Arthropods of Medical Importance Resource Bank, Yonsei University College of Medicine, Seoul, Korea
| | - In-Yong Lee
- Department of Environmental Medical Biology, Institute of Tropical Medicine and Arthropods of Medical Importance Resource Bank, Yonsei University College of Medicine, Seoul, Korea
- Convergence Research Center for Insect Vectors, College of Life Science and Bioengineering, Incheon National University, Incheon, Korea
| | - Dongeun Yong
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea
| | - Tai-Soon Yong
- Department of Environmental Medical Biology, Institute of Tropical Medicine and Arthropods of Medical Importance Resource Bank, Yonsei University College of Medicine, Seoul, Korea
- * E-mail:
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8
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Detection and Enumeration of Cytokine-Secreting Cells by FluoroSpot. Methods Mol Biol 2021; 2386:81-99. [PMID: 34766266 DOI: 10.1007/978-1-0716-1771-7_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The FluoroSpot assay is a development of the highly sensitive enzyme-linked immunospot (ELISpot) assay which enables functional measurement of immunity at the single-cell level. Both assays are performed in a 96-well format and measures the frequency of analyte-secreting cells, in ELISpot usually limited to one analyte per well due to the use of enzymes and precipitating substrates for detection. FluoroSpot, performed in a similar way as ELISpot, overcomes this limitation by detecting each analyte with an assigned fluorophore instead of an enzyme. By using readers equipped with fluorophore-specific filters, cells producing single or multiple cytokines can be identified simultaneously in the same well. This greatly facilitates the analysis of functionally distinct subpopulations in heterogenous cell samples, for example, the frequency of polyfunctional T cells, suggested to be of importance in various disease states. FluoroSpot maintains the simplicity and sensitivity of the ELISpot while taking the assay a step further towards a multiplex analysis and an in-depth understanding of the quality of an immune response. We describe here a 96-well plate method to analyze cells that have secreted up to four different cytokines simultaneously (Four-color Fluorospot).
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9
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da Silva Antunes R, Sutherland A, Frazier A, Schulten V, Pomés A, Glesner J, Calatroni A, Altman MC, Wood RA, O'Connor GT, Pongracic JA, Khurana Hershey GK, Kercsmar CM, Gruchalla RS, Gill M, Liu AH, Zoratti E, Kattan M, Busse PJ, Bacharier LB, Teach SJ, Wheatley LM, Togias A, Busse WW, Jackson DJ, Sette A. Heterogeneity of magnitude, allergen immunodominance, and cytokine polarization of cockroach allergen-specific T cell responses in allergic sensitized children. Clin Transl Allergy 2021; 11:e12073. [PMID: 34691392 PMCID: PMC8514843 DOI: 10.1002/clt2.12073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 09/13/2021] [Accepted: 10/03/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Characterization of allergic responses to cockroach (CR), a common aeroallergen associated with asthma, has focused mainly on IgE reactivity, but little is known about T cell responses, particularly in children. We conducted a functional evaluation of CR allergen-specific T cell reactivity in a cohort of CR allergic children with asthma. METHODS Peripheral blood mononuclear cells (PBMCs) were obtained from 71 children, with mild-to-moderate asthma who were enrolled in a CR immunotherapy (IT) clinical trial, prior to treatment initiation. PBMC were stimulated with peptide pools derived from 11 CR allergens, and CD4+ T cell responses assessed by intracellular cytokine staining. RESULTS Highly heterogeneous responses in T cell reactivity were observed among participants, both in terms of the magnitude of cytokine response and allergen immunodominance. Reactivity against Bla g 9 and Bla g 5 was most frequent. The phenotype of the T cell response was dominated by IL-4 production and a Th2 polarized profile in 54.9% of participants, but IFNγ production and Th1 polarization was observed in 25.3% of the participants. The numbers of regulatory CD4+ T cells were also highly variable and the magnitude of effector responses and Th2 polarization were positively correlated with serum IgE levels specific to a clinical CR extract. CONCLUSIONS Our results demonstrate that in children with mild-to-moderate asthma, CR-specific T cell responses display a wide range of magnitude, allergen dominance, and polarization. These results will enable examination of whether any of the variables measured are affected by IT and/or are predictive of clinical outcomes.
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Affiliation(s)
| | - Aaron Sutherland
- Division of Vaccine DiscoveryLa Jolla Institute for ImmunologyLa JollaCaliforniaUSA
| | - April Frazier
- Division of Vaccine DiscoveryLa Jolla Institute for ImmunologyLa JollaCaliforniaUSA
| | - Veronique Schulten
- Division of Vaccine DiscoveryLa Jolla Institute for ImmunologyLa JollaCaliforniaUSA
| | - Anna Pomés
- Basic ResearchIndoor Biotechnologies, Inc.CharlottesvilleVirginiaUSA
| | - Jill Glesner
- Basic ResearchIndoor Biotechnologies, Inc.CharlottesvilleVirginiaUSA
| | | | - Matthew C. Altman
- Benaroya Research Institute Systems Immunology DivisionDepartment of MedicineUniversity of WashingtonSeattleWashingtonUSA
| | - Robert A. Wood
- Division of Pediatric Allergy, Immunology and RheumatologyDepartment of PediatricsJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - George T. O'Connor
- Boston University School of MedicinePulmonary CenterBostonMassachusettsUSA
| | - Jacqueline A. Pongracic
- Advanced General Pediatrics and Primary CareAnn & Robert H. Lurie Children's Hospital of ChicagoChicagoIllinoisUSA
| | | | - Carolyn M. Kercsmar
- Division of Pulmonary MedicineCincinnati Children's HospitalCincinnatiOhioUSA
| | - Rebecca S. Gruchalla
- Divisions of Infectious Diseases and Pulmonary Vascular BiologyDepartment of PediatricsUniversity of Texas Southwestern Medical CenterDallasTexasUSA
| | - Michelle Gill
- Divisions of Infectious Diseases and Pulmonary Vascular BiologyDepartment of PediatricsUniversity of Texas Southwestern Medical CenterDallasTexasUSA
| | - Andrew H. Liu
- Department of PediatricsChildren's Hospital ColoradoUniversity of Colorado School of MedicineAuroraColoradoUSA
| | - Edward Zoratti
- Henry Ford Health System and Wayne State University School of MedicineDetroitMichiganUSA
| | - Meyer Kattan
- College of Physicians and SurgeonsColumbia UniversityNew YorkNew YorkUSA
| | - Paula J. Busse
- Division of Clinical Immunology and AllergyIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Leonard B. Bacharier
- Department of PediatricsMonroe Carell Jr Children's Hospital at Vanderbilt University Medical CenterNashvilleTennesseeUSA
| | - Stephen J. Teach
- Center for Translational ResearchChildren's National HospitalWashingtonDCUSA
| | - Lisa M. Wheatley
- Division of Allergy, Immunology, and TransplantationNational Institute of Allergy and Infectious DiseasesNational Institutes of HealthRockvilleMarylandUSA
| | - Alkis Togias
- Division of Allergy, Immunology, and TransplantationNational Institute of Allergy and Infectious DiseasesNational Institutes of HealthRockvilleMarylandUSA
| | - William W. Busse
- Departments of Pediatrics and MedicineUniversity of Wisconsin School of Medicine and Public HealthMadisonWisconsinUSA
| | - Daniel J. Jackson
- Departments of Pediatrics and MedicineUniversity of Wisconsin School of Medicine and Public HealthMadisonWisconsinUSA
| | - Alessandro Sette
- Division of Vaccine DiscoveryLa Jolla Institute for ImmunologyLa JollaCaliforniaUSA
- Department of MedicineUniversity of California San DiegoLa JollaCaliforniaUSA
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10
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Tippalagama R, Singhania A, Dubelko P, Lindestam Arlehamn CS, Crinklaw A, Pomaznoy M, Seumois G, deSilva AD, Premawansa S, Vidanagama D, Gunasena B, Goonawardhana NDS, Ariyaratne D, Scriba TJ, Gilman RH, Saito M, Taplitz R, Vijayanand P, Sette A, Peters B, Burel JG. HLA-DR Marks Recently Divided Antigen-Specific Effector CD4 T Cells in Active Tuberculosis Patients. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2021; 207:523-533. [PMID: 34193602 PMCID: PMC8516689 DOI: 10.4049/jimmunol.2100011] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 05/09/2021] [Indexed: 01/07/2023]
Abstract
Upon Ag encounter, T cells can rapidly divide and form an effector population, which plays an important role in fighting acute infections. In humans, little is known about the molecular markers that distinguish such effector cells from other T cell populations. To address this, we investigated the molecular profile of T cells present in individuals with active tuberculosis (ATB), where we expect Ag encounter and expansion of effector cells to occur at higher frequency in contrast to Mycobacterium tuberculosis-sensitized healthy IGRA+ individuals. We found that the frequency of HLA-DR+ cells was increased in circulating CD4 T cells of ATB patients, and was dominantly expressed in M. tuberculosis Ag-specific CD4 T cells. We tested and confirmed that HLA-DR is a marker of recently divided CD4 T cells upon M. tuberculosis Ag exposure using an in vitro model examining the response of resting memory T cells from healthy IGRA+ to Ags. Thus, HLA-DR marks a CD4 T cell population that can be directly detected ex vivo in human peripheral blood, whose frequency is increased during ATB disease and contains recently divided Ag-specific effector T cells. These findings will facilitate the monitoring and study of disease-specific effector T cell responses in the context of ATB and other infections.
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Affiliation(s)
- Rashmi Tippalagama
- Vaccine Discovery Division, La Jolla Institute for Immunology, La Jolla, CA
| | - Akul Singhania
- Vaccine Discovery Division, La Jolla Institute for Immunology, La Jolla, CA
| | - Paige Dubelko
- Vaccine Discovery Division, La Jolla Institute for Immunology, La Jolla, CA
| | | | - Austin Crinklaw
- Vaccine Discovery Division, La Jolla Institute for Immunology, La Jolla, CA
| | - Mikhail Pomaznoy
- Vaccine Discovery Division, La Jolla Institute for Immunology, La Jolla, CA
| | - Gregory Seumois
- Vaccine Discovery Division, La Jolla Institute for Immunology, La Jolla, CA
| | - Aruna D deSilva
- Vaccine Discovery Division, La Jolla Institute for Immunology, La Jolla, CA
- Faculty of Medicine, General Sir John Kotelawala Defense University, Ratmalana, Sri Lanka
| | | | | | - Bandu Gunasena
- National Hospital for Respiratory Diseases, Welisara, Sri Lanka
| | | | - Dinuka Ariyaratne
- Faculty of Medicine, General Sir John Kotelawala Defense University, Ratmalana, Sri Lanka
| | - Thomas J Scriba
- South African Tuberculosis Vaccine Initiative, Institute of Infectious Disease and Molecular Medicine, Division of Immunology, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - Robert H Gilman
- Johns Hopkins School of Public Health, Baltimore, MD
- Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Mayuko Saito
- Department of Virology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Randy Taplitz
- Department of Medicine, City of Hope National Medical Center, Duarte, CA; and
| | - Pandurangan Vijayanand
- Vaccine Discovery Division, La Jolla Institute for Immunology, La Jolla, CA
- Department of Medicine, University of California San Diego, La Jolla, CA
| | - Alessandro Sette
- Vaccine Discovery Division, La Jolla Institute for Immunology, La Jolla, CA
- Department of Medicine, University of California San Diego, La Jolla, CA
| | - Bjoern Peters
- Vaccine Discovery Division, La Jolla Institute for Immunology, La Jolla, CA;
- Department of Medicine, University of California San Diego, La Jolla, CA
| | - Julie G Burel
- Vaccine Discovery Division, La Jolla Institute for Immunology, La Jolla, CA;
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11
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Pomés A, Schulten V, Glesner J, da Silva Antunes R, Sutherland A, Bacharier LB, Beigelman A, Busse P, Frazier A, Sette A. IgE and T Cell Reactivity to a Comprehensive Panel of Cockroach Allergens in Relation to Disease. Front Immunol 2021; 11:621700. [PMID: 33643303 PMCID: PMC7902920 DOI: 10.3389/fimmu.2020.621700] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 12/22/2020] [Indexed: 02/04/2023] Open
Abstract
IgE sensitization to cockroach allergens is associated with development of allergic diseases, such as asthma. To understand the relevance of different cockroach allergens for diagnosis and immunotherapy, a comprehensive analysis of IgE antibody levels and T cell reactivity to an expanded set of cockroach allergens and their relationship to disease was performed in a cohort of USA cockroach sensitized patients. IgE antibody levels to recombinant chitinase and hemocyanin were measured for 23 subjects by custom-made ImmunoCAPs and compared with IgE levels to eight cockroach allergens we previously reported for the same cohort. Ex vivo T cell activation (Ox40/PDL-1 expression) of PBMCs stimulated with peptide pools derived from 11 German cockroach proteins, including nine official cockroach allergens, plus chitinase and vitellogenin, was determined by flow cytometry. IgE prevalences to chitinase (17%) and hemocyanin (44%) were comparable to values for the other eight allergens that we previously reported (21-57%). Hemocyanin (Bla g 3), was a major allergen (one to which more than 50% of patients with an allergy to its source react) for a sub-group of 15 highly cockroach-sensitized subjects (IgE > 3.5 kUA/L: 53%). Chitinase was officially named as new allergen Bla g 12. Cockroach-specific IgE levels in plasma showed excellent correlation with the sum of 10 allergen-specific IgE (r = 0.94, p < 0.001). T cell reactivity to 11 proteins was highly variable among subjects, the highest being for vitellogenin, followed by Bla g 3. The main finding was that cockroach allergen-specific IgE and T cell reactivity patterns were unique per subject, and lacked immunodominant allergens and correlation with clinical phenotype/disease severity in the studied cohort. Knowing the subject-specific B/T cell reactivity profiles to a comprehensive panel of cockroach allergens will contribute to diagnosis of cockroach allergy and will be important for planning and assessing allergen immunotherapy outcomes, according to the allergen content in therapeutic cockroach extracts.
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Affiliation(s)
- Anna Pomés
- Basic Research, Indoor Biotechnologies, Inc., Charlottesville, VA, United States
| | - Véronique Schulten
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, United States
| | - Jill Glesner
- Basic Research, Indoor Biotechnologies, Inc., Charlottesville, VA, United States
| | - Ricardo da Silva Antunes
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, United States
| | - Aaron Sutherland
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, United States
| | - Leonard B Bacharier
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, United States.,Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Avraham Beigelman
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, United States.,Kipper Institute of Allergy and Immunology, Schneider Children's Medical Center of Israel, Tel Aviv University, Tel Aviv, Israel
| | - Paula Busse
- Division of Clinical Immunology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - April Frazier
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, United States
| | - Alessandro Sette
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, United States.,Department of Medicine, University of California San Diego, La Jolla, CA, United States
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12
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Mindaye ST, David NA, Zarkesh Esfahani SA, Schal C, Matsui EC, Rabin RL, Slater JE. Measurement of German cockroach allergens and their isoforms in allergen extracts with mass spectrometry. Clin Exp Allergy 2020; 50:741-751. [PMID: 32243003 DOI: 10.1111/cea.13604] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 03/11/2020] [Accepted: 03/22/2020] [Indexed: 01/21/2023]
Abstract
BACKGROUND Allergen extracts are the primary tool for diagnosis and treatment of allergic diseases. In the United States, most allergen extracts are non-standardized. More sophisticated analytical approaches are needed to characterize these products and enable manufacturers and regulators to better determine potency. OBJECTIVE To expand the multiple reaction monitoring (MRM) assay for an in-depth characterization of German cockroach (GCr; Blattella germanica) allergen extracts. METHODS We applied advanced liquid chromatography (LC) and mass spectrometry (MS) techniques including MRM. The expanded LC/MRM-MS method was optimized to measure known GCr allergens and their isoforms/variants in commercial extracts and environmental samples. We performed isoform-specific allergen measurements in multiple extracts from four commercial sources and extracts prepared using environmental samples from urban homes. To investigate causes of heterogeneity, we examined over 30 extraction process variables. RESULTS Evaluation of the commercial extracts confirmed the variability of production lots and commercial sources. Commonly used defatting and extraction protocols yielded extracts with comparable allergen profiles and content. However, the identity and quality of source materials was a major contributor to variability. In comparing commercial GCr extracts to environmental samples, relative quantities of Bla g 1, Bla g 2, Bla g 3, Bla g 4 and Bla g 11 were similar, while Bla g 5, Bla g 6, Bla g 7 and Bla g 8 were present in the environmental samples but largely absent for the commercial extracts. CONCLUSIONS AND CLINICAL RELEVANCE LC/MRM-MS can be used to measure all known GCr allergens in commercial allergen extracts and environmental samples. Significant differences exist between allergen profiles of commercial extracts and the profiles of environmental samples from dwellings. This analytical platform can serve as a template to achieve better product characterization of similarly complex products.
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Affiliation(s)
- Samuel T Mindaye
- Laboratory of Immunobiochemistry, Division of Bacterial, Parasitic, and Allergenic Products, Office of Vaccines Research and Review, CBER/FDA, Silver Spring, MD, USA
| | - Natalie A David
- Laboratory of Immunobiochemistry, Division of Bacterial, Parasitic, and Allergenic Products, Office of Vaccines Research and Review, CBER/FDA, Silver Spring, MD, USA
| | - Sayyed Amin Zarkesh Esfahani
- Laboratory of Immunobiochemistry, Division of Bacterial, Parasitic, and Allergenic Products, Office of Vaccines Research and Review, CBER/FDA, Silver Spring, MD, USA
| | - Coby Schal
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, USA
| | - Elizabeth C Matsui
- Department of Population Health and Pediatrics, Dell Medical School, The University of Texas at Austin, Austin, TX, USA
| | - Ronald L Rabin
- Laboratory of Immunobiochemistry, Division of Bacterial, Parasitic, and Allergenic Products, Office of Vaccines Research and Review, CBER/FDA, Silver Spring, MD, USA
| | - Jay E Slater
- Laboratory of Immunobiochemistry, Division of Bacterial, Parasitic, and Allergenic Products, Office of Vaccines Research and Review, CBER/FDA, Silver Spring, MD, USA
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13
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Development and Validation of a Bordetella pertussis Whole-Genome Screening Strategy. J Immunol Res 2020; 2020:8202067. [PMID: 32322598 PMCID: PMC7154976 DOI: 10.1155/2020/8202067] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 03/06/2020] [Indexed: 02/06/2023] Open
Abstract
The immune response elicited by the protective whole-cell pertussis (wP) versus the less-protective acellular pertussis (aP) vaccine has been well characterized; however, important clinical problems remain unsolved, as the inability of the currently administered aP vaccine is resulting in the reemergence of clinical disease (i.e., whooping cough). Strong evidence has shown that original, childhood aP and wP priming vaccines provide a long-lasting imprint on the CD4+ T cells that impacts protective immunity. However, aP vaccination might prevent disease but not infection, which might also affect the breadth of responses to Bordetella pertussis (BP) antigens. Thus, characterizing and defining novel targets associated with T cell reactivity are of considerable interest. Here, we compare the T cell reactivity of original aP and wP priming for different antigens contained or not contained in the aP vaccine and define the basis of a full-scale genomic map of memory T cell reactivity to BP antigens in humans. Our data show that the original priming after birth with aP vaccines has higher T cell reactivity than originally expected against a variety of BP antigens and that the genome-wide mapping of BP using an ex vivo screening methodology is feasible, unbiased, and reproducible. This could provide invaluable knowledge towards the direction of a new and improved pertussis vaccine design.
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14
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Azmeh R, Greydanus DE, Agana MG, Dickson CA, Patel DR, Ischander MM, Lloyd RD. Update in Pediatric Asthma: Selected Issues. Dis Mon 2019; 66:100886. [PMID: 31570159 DOI: 10.1016/j.disamonth.2019.100886] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Asthma is a complex condition that affects 14% of the world's children and the approach to management includes both pharmacologic as well as non-pharmacologic strategies including attention to complex socioeconomic status phenomena. After an historical consideration of asthma, allergic and immunologic aspects of asthma in children and adolescents are presented. Concepts of socioeconomic aspects of asthma are considered along with environmental features and complications of asthma disparities. Also reviewed are links of asthma with mental health disorders, sleep disturbances and other comorbidities. A stepwise approach to asthma management is discussed that includes pharmacologic and non-pharmacologic strategies in the pediatric population. The role of immunotherapy and use of various immunomodulators are considered as well.
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Affiliation(s)
- Roua Azmeh
- Department of Pediatric and Adolescent Medicine, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, United States
| | - Donald E Greydanus
- Department of Pediatric and Adolescent Medicine, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, United States.
| | - Marisha G Agana
- Department of Pediatric and Adolescent Medicine, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, United States
| | - Cheryl A Dickson
- Department of Pediatric and Adolescent Medicine, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, United States; Health Equity and Community Affairs, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, Michigan, United States
| | - Dilip R Patel
- Department of Pediatric and Adolescent Medicine, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, United States
| | - Mariam M Ischander
- Department of Pediatric and Adolescent Medicine, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, United States
| | - Robert D Lloyd
- Pacific Northwest University of Health Sciences College of Osteopathic Medicine, Yakima, Washington, United States
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15
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Chen M, Sutherland A, Birrueta G, Laubach S, Leonard S, Peters B, Schulten V. Analysis of Allergen-Specific T Cell and IgE Reactivity to Different Preparations of Cow's Milk-Containing Food Extracts. Cells 2019; 8:E667. [PMID: 31269726 PMCID: PMC6679079 DOI: 10.3390/cells8070667] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 06/21/2019] [Accepted: 06/27/2019] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND cow's milk allergy (CM) is among the most common food allergies in young children and is often outgrown by adulthood. Prior to developing a tolerance to CM, a majority of CM-allergic children may tolerate extensively-heated CM. This study aims to characterize the IgE- and T cell-reactivity to unheated CM and the progressively more heated CM-containing foods. METHODS CM-containing food extracts from muffin, baked cheese, custard and raw, pasteurized CM commercial extract were tested for skin prick test reactivity, IgE binding and T cell reactivity as assessed by IL-5 and IFNγ production. RESULTS the skin prick test (SPT) reactivity was significantly decreased to muffin extract compared to raw, pasteurized CM. Both IgE- and T-cell reactivity were readily detectable against food extracts from all forms of CM. Western blot analysis of IgE reactivity revealed variability between extracts that was protein-specific. T cell-reactivity was detected against all four extracts with no significant difference in IL-5 or IFNγ production between them. CONCLUSION our data indicate that despite reduced clinical reactivity, extracts from heated CM-containing foods retain immunogenicity when tested in vitro, particularly at the T cell level.
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Affiliation(s)
- Meng Chen
- Division of Pediatric Allergy & Immunology, Rady Children's Hospital San Diego, University of California, San Diego, CA 92123, USA
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | | | | | - Susan Laubach
- Division of Pediatric Allergy & Immunology, Rady Children's Hospital San Diego, University of California, San Diego, CA 92123, USA
| | - Stephanie Leonard
- Division of Pediatric Allergy & Immunology, Rady Children's Hospital San Diego, University of California, San Diego, CA 92123, USA
| | - Bjoern Peters
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
- La Jolla Institute for Immunology, La Jolla, CA 92037, USA
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16
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Glesner J, Filep S, Vailes LD, Wünschmann S, Chapman MD, Birrueta G, Frazier A, Jeong KY, Schal C, Bacharier L, Beigelman A, Busse P, Schulten V, Sette A, Pomés A. Allergen content in German cockroach extracts and sensitization profiles to a new expanded set of cockroach allergens determine in vitro extract potency for IgE reactivity. J Allergy Clin Immunol 2019; 143:1474-1481.e8. [PMID: 30170124 PMCID: PMC6395535 DOI: 10.1016/j.jaci.2018.07.036] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 07/16/2018] [Accepted: 07/27/2018] [Indexed: 11/27/2022]
Abstract
BACKGROUND Cockroach allergens are an important cause of IgE-mediated sensitization in inner-city asthmatic patients. However, cockroach extracts used for diagnosis and immunotherapy are not standardized. OBJECTIVE We sought to determine the allergen content of nonstandardized German cockroach extracts and the levels of sensitization to an expanded set of cockroach allergens as determinants of in vitro extract potency for IgE reactivity. METHODS Twelve German cockroach extracts were compared for allergen content and potency of IgE reactivity. Bla g 1, Bla g 2, and Bla g 5 were measured by using immunoassays. IgE antibody levels to 8 purified recombinant allergens from groups 1, 2, 4, 5, 6, 7, 9, and 11 were measured by using ImmunoCAP. IgE antibody binding inhibition assays were performed to assess extract in vitro potencies (concentration inhibiting 30% of the total IgE antibody-binding inhibition) relative to an arbitrarily selected reference extract in 5 patients with cockroach allergy. RESULTS Allergen levels were highly variable. Three new major allergens (groups 6, 9, and 11), were identified among highly cockroach-sensitized subjects (CAP class ≥ 3). Sensitization profiles were unique per subject without immunodominant allergens. The sum of IgE to 8 allergen components showed a good correlation with cockroach-specific IgE levels (r = 0.88, P < .001). In vitro potencies varied among different extracts per subject and among subjects for each extract. CONCLUSIONS The in vitro potency of German cockroach extracts for IgE reactivity depends on allergen content and allergen-specific IgE titers of patients with cockroach allergy. These factors are relevant for selection of potent extracts to be used for immunotherapy and for the design and interpretation of data from immunotherapy trials.
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Affiliation(s)
| | | | | | | | | | | | - April Frazier
- La Jolla Institute for Allergy & Immunology, La Jolla, Calif
| | - Kyoung Yong Jeong
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Coby Schal
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC
| | - Leonard Bacharier
- Department of Pediatrics, Washington University School of Medicine, St Louis, Mo
| | - Avraham Beigelman
- Department of Pediatrics, Washington University School of Medicine, St Louis, Mo
| | - Paula Busse
- Division of Clinical Immunology, Icahn School of Medicine at Mount Sinai, New York, NY
| | | | - Alessandro Sette
- La Jolla Institute for Allergy & Immunology, La Jolla, Calif; Department of Medicine, University of California San Diego, La Jolla, Calif
| | - Anna Pomés
- Indoor Biotechnologies, Charlottesville, Va.
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