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Feleszko W, Okarska-Napierała M, Buddingh EP, Bloomfield M, Sediva A, Bautista-Rodriguez C, Brough HA, Eigenmann PA, Eiwegger T, Eljaszewicz A, Eyerich S, Gomez-Casado C, Fraisse A, Janda J, Jiménez-Saiz R, Kallinich T, Krohn IK, Mortz CG, Riggioni C, Sastre J, Sokolowska M, Strzelczyk Z, Untersmayr E, Tramper-Stranders G. Pathogenesis, immunology, and immune-targeted management of the multisystem inflammatory syndrome in children (MIS-C) or pediatric inflammatory multisystem syndrome (PIMS): EAACI Position Paper. Pediatr Allergy Immunol 2023; 34:e13900. [PMID: 36705045 DOI: 10.1111/pai.13900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 12/05/2022] [Indexed: 01/06/2023]
Abstract
Multisystem inflammatory syndrome in children (MIS-C) is a rare, but severe complication of coronavirus disease 2019 (COVID-19). It develops approximately 4 weeks after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and involves hyperinflammation with multisystem injury, commonly progressing to shock. The exact pathomechanism of MIS-C is not known, but immunological dysregulation leading to cytokine storm plays a central role. In response to the emergence of MIS-C, the European Academy of Allergy and Clinical Immunology (EAACI) established a task force (TF) within the Immunology Section in May 2021. With the use of an online Delphi process, TF formulated clinical statements regarding immunological background of MIS-C, diagnosis, treatment, follow-up, and the role of COVID-19 vaccinations. MIS-C case definition is broad, and diagnosis is made based on clinical presentation. The immunological mechanism leading to MIS-C is unclear and depends on activating multiple pathways leading to hyperinflammation. Current management of MIS-C relies on supportive care in combination with immunosuppressive and/or immunomodulatory agents. The most frequently used agents are systemic steroids and intravenous immunoglobulin. Despite good overall short-term outcome, MIS-C patients should be followed-up at regular intervals after discharge, focusing on cardiac disease, organ damage, and inflammatory activity. COVID-19 vaccination is a safe and effective measure to prevent MIS-C. In anticipation of further research, we propose a convenient and clinically practical algorithm for managing MIS-C developed by the Immunology Section of the EAACI.
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Affiliation(s)
- Wojciech Feleszko
- Department of Pediatric Pneumology and Allergy, The Medical University of Warsaw, Warsaw, Poland
| | | | - Emilie Pauline Buddingh
- Department of Pediatrics, Willem-Alexander Children's Hospital, Leiden University Medical Centre, Leiden, The Netherlands
| | - Marketa Bloomfield
- Department of Immunology, 2nd Faculty of Medicine, Motol University Hospital, Charles University, Prague, Czech Republic.,Department of Pediatrics, 1st Faculty of Medicine, Thomayer University Hospital, Charles University, Prague, Czech Republic
| | - Anna Sediva
- Department of Immunology, 2nd Faculty of Medicine, Motol University Hospital, Charles University, Prague, Czech Republic
| | - Carles Bautista-Rodriguez
- Pediatric Cardiology Services, Royal Brompton Hospital, London, UK.,National Heart and Lung Institute, Imperial College London, London, UK
| | - Helen A Brough
- Paediatric Allergy Group, Department of Women and Children's Health, School of Life Course Sciences, St. Thomas' Hospital, King's College London, London, UK.,Children's Allergy Service, Evelina Children's Hospital, Guy's and St.Thomas' Hospital NHS Foundation Trust, London, UK.,Paediatric Allergy Group, Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, Guys' Hospital, King's College London, London, UK
| | - Philippe A Eigenmann
- Department of Women-Children-Teenagers, University Hospital of Geneva, Geneva, Switzerland
| | - Thomas Eiwegger
- Karl Landsteiner University of Health Sciences, Krems, Austria.,Translational Medicine Program, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Immunology, University of Toronto, Toronto, Ontario, Canada.,Department of Pediatric and Adolescent Medicine, University Hospital St. Pölten, St. Pölten, Austria
| | - Andrzej Eljaszewicz
- Department of Regenerative Medicine and Immune Regulation, Medical University of Bialystok, Bialystok, Poland
| | - Stefanie Eyerich
- Center for Allergy and Environment (ZAUM), Technical University and Helmholtz Center Munich, Munich, Germany
| | - Cristina Gomez-Casado
- Department of Dermatology, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Alain Fraisse
- Pediatric Cardiology Services, Royal Brompton Hospital, London, UK.,National Heart and Lung Institute, Imperial College London, London, UK
| | - Jozef Janda
- Faculty of Science, Charles University, Prague, Czech Republic
| | - Rodrigo Jiménez-Saiz
- Department of Immunology, Instituto de Investigación Sanitaria Hospital Universitario de La Princesa (IIS-Princesa), Madrid, Spain.,Department of Immunology and Oncology, Centro Nacional de Biotecnología (CNB-CSIC), Madrid, Spain.,Faculty of Experimental Sciences, Universidad Francisco de Vitoria (UFV), Madrid, Spain.,Department of Medicine, McMaster Immunology Research Centre, McMaster University, Hamilton, Ontario, Canada
| | - Tilmann Kallinich
- Pediatric Pneumology, Immunology and Critical Care Medicine, Charité - Universitätsmedizin Berlin and Deutsches Rheuma-Forschungszentrum (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - Inge Kortekaas Krohn
- SKIN Research Group, Vrije Univeristeit Brussel (VUB), Brussels, Belgium.,Department of Dermatology, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Charlotte G Mortz
- Department of Dermatology and Allergy Center, Odense Research Center for Anaphylaxis (ORCA), Odense University Hospital, Odense, Denmark
| | - Carmen Riggioni
- Allergy, Immunology and Rheumatology Division, Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Joaquin Sastre
- Fundacion Jimenez Diaz and CIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Milena Sokolowska
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland.,Christine Kühne - Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
| | - Ziemowit Strzelczyk
- Department of Pediatric Pneumology and Allergy, The Medical University of Warsaw, Warsaw, Poland
| | - Eva Untersmayr
- Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Gerdien Tramper-Stranders
- Department of Paediatric Medicine, Franciscus Gasthuis & Vlietland, Rotterdam, The Netherlands.,Department of Neonatology, Erasmus MC-Sophia, Rotterdam, The Netherlands
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2
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Korath ADJ, Janda J, Untersmayr E, Sokolowska M, Feleszko W, Agache I, Adel Seida A, Hartmann K, Jensen‐Jarolim E, Pali‐Schöll I. One Health: EAACI Position Paper on coronaviruses at the human-animal interface, with a specific focus on comparative and zoonotic aspects of SARS-CoV-2. Allergy 2022; 77:55-71. [PMID: 34180546 PMCID: PMC8441637 DOI: 10.1111/all.14991] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 06/24/2021] [Indexed: 12/15/2022]
Abstract
The latest outbreak of a coronavirus disease in 2019 (COVID‐19) caused by the severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2), evolved into a worldwide pandemic with massive effects on health, quality of life, and economy. Given the short period of time since the outbreak, there are several knowledge gaps on the comparative and zoonotic aspects of this new virus. Within the One Health concept, the current EAACI position paper dwells into the current knowledge on SARS‐CoV‐2’s receptors, symptoms, transmission routes for human and animals living in close vicinity to each other, usefulness of animal models to study this disease and management options to avoid intra‐ and interspecies transmission. Similar pandemics might appear unexpectedly and more frequently in the near future due to climate change, consumption of exotic foods and drinks, globe‐trotter travel possibilities, the growing world population, the decreasing production space, declining room for wildlife and free‐ranging animals, and the changed lifestyle including living very close to animals. Therefore, both the society and the health authorities need to be aware and well prepared for similar future situations, and research needs to focus on prevention and fast development of treatment options (medications, vaccines).
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Affiliation(s)
- Anna D. J. Korath
- Comparative Medicine Interuniversity Messerli Research Institute University of Veterinary Medicine and Medical University Vienna Vienna Austria
| | - Jozef Janda
- Faculty of Science Charles University Prague Czech Republic
| | - Eva Untersmayr
- Institute of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - Milena Sokolowska
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich Zurich Switzerland
| | - Wojciech Feleszko
- Department of Paediatric Allergy and Pulmonology The Medical University of Warsaw Warsaw Poland
| | | | - Ahmed Adel Seida
- Department of Microbiology and Immunology Faculty of Veterinary Medicine Cairo University Cairo Egypt
| | - Katrin Hartmann
- Medizinische Kleintierklinik Zentrum für Klinische Tiermedizin LMU Munich Germany
| | - Erika Jensen‐Jarolim
- Comparative Medicine Interuniversity Messerli Research Institute University of Veterinary Medicine and Medical University Vienna Vienna Austria
- Institute of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - Isabella Pali‐Schöll
- Comparative Medicine Interuniversity Messerli Research Institute University of Veterinary Medicine and Medical University Vienna Vienna Austria
- Institute of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
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3
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Sokolowska M, Lukasik ZM, Agache I, Akdis CA, Akdis D, Akdis M, Barcik W, Brough HA, Eiwegger T, Eljaszewicz A, Eyerich S, Feleszko W, Gomez‐Casado C, Hoffmann‐Sommergruber K, Janda J, Jiménez‐Saiz R, Jutel M, Knol EF, Kortekaas Krohn I, Kothari A, Makowska J, Moniuszko M, Morita H, O'Mahony L, Nadeau K, Ozdemir C, Pali‐Schöll I, Palomares O, Papaleo F, Prunicki M, Schmidt‐Weber CB, Sediva A, Schwarze J, Shamji MH, Tramper‐Stranders GA, Veen W, Untersmayr E. Immunology of COVID-19: Mechanisms, clinical outcome, diagnostics, and perspectives-A report of the European Academy of Allergy and Clinical Immunology (EAACI). Allergy 2020; 75:2445-2476. [PMID: 32584441 PMCID: PMC7361752 DOI: 10.1111/all.14462] [Citation(s) in RCA: 108] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 06/10/2020] [Accepted: 06/13/2020] [Indexed: 02/06/2023]
Abstract
With the worldwide spread of the novel severe acute respiratory syndrome coronavirus‐2 (SARS‐CoV‐2) resulting in declaration of a pandemic by the World Health Organization (WHO) on March 11, 2020, the SARS‐CoV‐2‐induced coronavirus disease‐19 (COVID‐19) has become one of the main challenges of our times. The high infection rate and the severe disease course led to major safety and social restriction measures worldwide. There is an urgent need of unbiased expert knowledge guiding the development of efficient treatment and prevention strategies. This report summarizes current immunological data on mechanisms associated with the SARS‐CoV‐2 infection and COVID‐19 development and progression to the most severe forms. We characterize the differences between adequate innate and adaptive immune response in mild disease and the deep immune dysfunction in the severe multiorgan disease. The similarities of the human immune response to SARS‐CoV‐2 and the SARS‐CoV and MERS‐CoV are underlined. We also summarize known and potential SARS‐CoV‐2 receptors on epithelial barriers, immune cells, endothelium and clinically involved organs such as lung, gut, kidney, cardiovascular, and neuronal system. Finally, we discuss the known and potential mechanisms underlying the involvement of comorbidities, gender, and age in development of COVID‐19. Consequently, we highlight the knowledge gaps and urgent research requirements to provide a quick roadmap for ongoing and needed COVID‐19 studies.
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4
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Nfonsam VN, Jecius HC, Janda J, Omesiete PN, Elquza E, Scott AJ, Nfonsam LE, Jandova J. Cartilage oligomeric matrix protein (COMP) promotes cell proliferation in early-onset colon cancer tumorigenesis. Surg Endosc 2019; 34:3992-3998. [PMID: 31617091 DOI: 10.1007/s00464-019-07185-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 10/01/2019] [Indexed: 12/22/2022]
Abstract
BACKGROUND Colon cancer (CC) is the third most commonly diagnosed cancer in the USA. While the overall incidence is declining, it is rising alarmingly in young patients (EOCC). CC in young patients tends to be more aggressive and often diagnosed at more advanced stages and portend poorer prognosis. Our recently published data showed that EOCC is a distinct disease with unique molecular features compared to late-onset CC (LOCC). The Cartilage Oligomeric Matrix Protein (COMP) was shown to be significantly upregulated in EOCC and correlated with poor survival. However, the role of COMP in CC tumorigenesis, especially in young patients, is not well understood. Thus, the aim of this study was to elucidate the role of COMP in CC tumorigenesis by modulating COMP levels in vitro and test how it affects proliferation. Then, patient samples were evaluated by testing the levels of proliferation marker Ki67. In addition, this study investigates whether higher transcriptional mRNA levels of COMP seen in more aggressive early-onset CC correlate with protein levels compared to late-onset CC. METHODS COMP mRNA levels in fresh frozen colon tumors (young: n = 5; old: n = 5) were assessed by quantitative PCR (qPCR). Additionally, CC cell lines were profiled for COMP expression to choose an in vitro model to study the role of COMP in CC tumorigenesis. HT-29 (low COMP expression) and CaCo-2 (high COMP expression) cells were used for in vitro proliferation studies. Immunohistochemical (IHC) analysis was conducted to assess COMP and Ki67 protein levels in formalin-fixed paraffin-embedded (FFPE) colon tumors. RESULTS Significantly higher COMP expression levels were observed in fresh frozen EOCC compared to LOCC tumors. This observation confirmed our previously reported results from NanoString gene expression assay using FFPE samples. Cell proliferation was significantly increased in HT-29 and CaCo-2 cells upon treatment with human recombinant COMP protein after 48 and 72 h (P < 0.05). This increase was more profound in HT-29 cells. Staining for COMP and Ki67 revealed high COMP protein levels in EOCC compared to LOCC patients. CONCLUSION COMP mRNA and protein levels are significantly higher in EOCC patients. Higher COMP levels correlate with increased proliferation suggesting a role in CC tumorigenesis.
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Affiliation(s)
- V N Nfonsam
- Department of Surgery, University of Arizona, Tucson, AZ, 85724, USA.
| | - H C Jecius
- Department of Surgery, University of Arizona, Tucson, AZ, 85724, USA
| | - J Janda
- Department of Medicine, University of Arizona, Tucson, AZ, 85724, USA
| | - P N Omesiete
- Department of Surgery, University of Arizona, Tucson, AZ, 85724, USA
| | - E Elquza
- Division of Hematology and Oncology, Department of Medicine, Banner-University of Arizona Cancer Center, Tucson, AZ, 85724, USA
| | - A J Scott
- Division of Hematology and Oncology, Department of Medicine, Banner-University of Arizona Cancer Center, Tucson, AZ, 85724, USA
| | - L E Nfonsam
- Children's Hospital of Eastern Ontario, Ottawa, ON, K1H8L1, Canada
| | - J Jandova
- Department of Surgery, University of Arizona, Tucson, AZ, 85724, USA
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5
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Hauswirth R, Haase B, Blatter M, Brooks SA, Burger D, Drögemüller C, Gerber V, Henke D, Janda J, Jude R, Magdesian KG, Matthews JM, Poncet PA, Svansson V, Tozaki T, Wilkinson-White L, Penedo MCT, Rieder S, Leeb T. Correction: Mutations in MITF and PAX3 Cause "Splashed White" and Other White Spotting Phenotypes in Horses. PLoS Genet 2019; 15:e1008321. [PMID: 31374075 PMCID: PMC6677290 DOI: 10.1371/journal.pgen.1008321] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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6
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Pali‐Schöll I, Blank S, Verhoeckx K, Mueller RS, Janda J, Marti E, Seida AA, Rhyner C, DeBoer DJ, Jensen‐Jarolim E. EAACI position paper: Comparing insect hypersensitivity induced by bite, sting, inhalation or ingestion in human beings and animals. Allergy 2019; 74:874-887. [PMID: 30644576 DOI: 10.1111/all.13722] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 01/08/2019] [Accepted: 01/09/2019] [Indexed: 01/08/2023]
Abstract
Adverse reactions to insects occur in both human and veterinary patients. Systematic comparison may lead to improved recommendations for prevention and treatment in all species. In this position paper, we summarize the current knowledge on insect allergy induced via stings, bites, inhalation or ingestion, and compare reactions in companion animals to those in people. With few exceptions, the situation in human insect allergy is better documented than in animals. We focus on a review of recent literature and give overviews of the epidemiology and clinical signs. We discuss allergen sources and allergenic molecules to the extent described, and aspects of diagnosis, prophylaxis, management and therapy.
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Affiliation(s)
- Isabella Pali‐Schöll
- Comparative Medicine The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna Medical University of Vienna and University of Vienna Vienna Austria
- Institute of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - Simon Blank
- Center of Allergy and Environment (ZAUM) Member of the German Center of Lung Research (DZL) Technical University of Munich and Helmholtz Center Munich Munich Germany
| | - Kitty Verhoeckx
- Department of Dermatology/Allergology University Medical Center Utrecht Utrecht The Netherlands
- TNO Zeist The Netherlands
| | - Ralf S. Mueller
- Centre for Clinical Veterinary Medicine Ludwig Maximilian University Munich Munich Germany
| | - Jozef Janda
- Faculty of Science Charles University Prague Czech Republic
| | - Eliane Marti
- Department of Clinical Research and Veterinary Public Health Vetsuisse Faculty University of Berne Berne Switzerland
| | - Ahmed A. Seida
- Department of Microbiology and Immunology Faculty of Veterinary Medicine Cairo University Cairo Egypt
| | - Claudio Rhyner
- Swiss Institute of Allergy and Asthma Research (SIAF) Davos Switzerland
| | - Douglas J. DeBoer
- School of Veterinary Medicine University of Wisconsin Madison Wisconsin
| | - Erika Jensen‐Jarolim
- Comparative Medicine The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna Medical University of Vienna and University of Vienna Vienna Austria
- Institute of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
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7
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Mueller RS, Jensen‐Jarolim E, Roth‐Walter F, Marti E, Janda J, Seida AA, DeBoer D. Allergen immunotherapy in people, dogs, cats and horses - differences, similarities and research needs. Allergy 2018; 73:1989-1999. [PMID: 29675865 DOI: 10.1111/all.13464] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2018] [Indexed: 12/28/2022]
Abstract
In human patients with seasonal allergic rhinoconjunctivitis sensitized to grass pollen, the first successful allergen immunotherapy (AIT) was reported in 1911. Today, immunotherapy is an accepted treatment for allergic asthma, allergic rhinitis and hypersensitivities to insect venom. AIT is also used for atopic dermatitis and recently for food allergy. Subcutaneous, epicutaneous, intralymphatic, oral and sublingual protocols of AIT exist. In animals, most data are available in dogs where subcutaneous AIT is an accepted treatment for atopic dermatitis. Initiating a regulatory response and a production of "blocking" IgG antibodies with AIT are similar mechanisms in human beings and dogs with allergic diseases. Although subcutaneous immunotherapy is used for atopic dermatitis in cats, data for its efficacy are sparse. There is some evidence for successful treatment of feline asthma with AIT. In horses, most studies evaluate the effect of AIT on insect hypersensitivity with conflicting results although promising pilot studies have demonstrated the prophylaxis of insect hypersensitivity with recombinant antigens of biting midges (Culicoides spp.). Optimizing AIT using allergoids, peptide immunotherapy, recombinant allergens and new adjuvants with the different administration types of allergen extracts will further improve compliance and efficacy of this proven treatment modality.
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Affiliation(s)
- R. S. Mueller
- Centre for Clinical Veterinary Medicine LMU Munich Munich Germany
| | - E. Jensen‐Jarolim
- The Interuniversity Messerli Research Institute University of Veterinary Medicine Vienna Medical University Vienna Vienna Austria
- Institute of Pathophysiology and Allergy Research Center of Pathophysiology Infectiology and Immunology, Medical University Vienna Austria
| | - F. Roth‐Walter
- The Interuniversity Messerli Research Institute University of Veterinary Medicine Vienna Medical University Vienna Vienna Austria
| | - E. Marti
- Department of Clinical Research and Veterinary Public Health University of Bern Bern Switzerland
| | - J. Janda
- Faculty of Science Charles University Prague Czech Republic
| | - A. A. Seida
- Immunology and Microbiology Department Faculty of Veterinary Medicine Cairo University Giza Egypt
| | - D. DeBoer
- School of Veterinary Medicine University of Wisconsin Madison WI USA
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8
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Jensen-Jarolim E, Bax HJ, Bianchini R, Crescioli S, Daniels-Wells TR, Dombrowicz D, Fiebiger E, Gould HJ, Irshad S, Janda J, Josephs DH, Levi-Schaffer F, O'Mahony L, Pellizzari G, Penichet ML, Redegeld F, Roth-Walter F, Singer J, Untersmayr E, Vangelista L, Karagiannis SN. AllergoOncology: Opposite outcomes of immune tolerance in allergy and cancer. Allergy 2018; 73:328-340. [PMID: 28921585 PMCID: PMC6038916 DOI: 10.1111/all.13311] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2017] [Indexed: 12/11/2022]
Abstract
While desired for the cure of allergy, regulatory immune cell subsets and nonclassical Th2-biased inflammatory mediators in the tumour microenvironment can contribute to immune suppression and escape of tumours from immunological detection and clearance. A key aim in the cancer field is therefore to design interventions that can break immunological tolerance and halt cancer progression, whereas on the contrary allergen immunotherapy exactly aims to induce tolerance. In this position paper, we review insights on immune tolerance derived from allergy and from cancer inflammation, focusing on what is known about the roles of key immune cells and mediators. We propose that research in the field of AllergoOncology that aims to delineate these immunological mechanisms with juxtaposed clinical consequences in allergy and cancer may point to novel avenues for therapeutic interventions that stand to benefit both disciplines.
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Affiliation(s)
- E Jensen-Jarolim
- The Interuniversity Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University Vienna, University Vienna, Vienna, Austria
- Centre of Pathophysiology, Infectiology & Immunology, Institute of Pathophysiology & Allergy Research, Medical University Vienna, Vienna, Austria
| | - H J Bax
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, Guy's Hospital, London, UK
- School of Cancer & Pharmaceutical Sciences, King's College London, Guy's Hospital, London, UK
| | - R Bianchini
- The Interuniversity Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University Vienna, University Vienna, Vienna, Austria
| | - S Crescioli
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, Guy's Hospital, London, UK
| | - T R Daniels-Wells
- Division of Surgical Oncology, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - D Dombrowicz
- INSERM, CHU Lille, European Genomic Institute of Diabetes, Institut Pasteur de Lille, U1011 - Recepteurs Nucleaires, Maladies Cardiovasculaires et Diabete, Universite de Lille, Lille, France
| | - E Fiebiger
- Division of Gastroenterology, Hepatology and Nutrition Research, Department Medicine Research, Childrens' University Hospital Boston, Boston, MA, USA
| | - H J Gould
- Randall Division of Cell and Molecular Biophysics, King's College London, London, UK
| | - S Irshad
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, Guy's Hospital, London, UK
- Breast Cancer Now Unit, School of Cancer & Pharmaceutical Sciences, King's College London, Guy's Cancer Centre, London, UK
| | - J Janda
- Faculty of Science, Charles University, Prague, Czech Republic
| | - D H Josephs
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, Guy's Hospital, London, UK
- School of Cancer & Pharmaceutical Sciences, King's College London, Guy's Hospital, London, UK
| | - F Levi-Schaffer
- Faculty of Medicine, Pharmacology and Experimental Therapeutics Unit, The Institute for Drug Research, School of Pharmacy, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - L O'Mahony
- Molecular Immunology, Swiss Institute of Allergy and Asthma Research, Davos, Switzerland
| | - G Pellizzari
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, Guy's Hospital, London, UK
- School of Cancer & Pharmaceutical Sciences, King's College London, Guy's Hospital, London, UK
| | - M L Penichet
- Division of Surgical Oncology, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
- Jonsson Comprehensive Cancer Centre, University of California, Los Angeles, CA, USA
| | - F Redegeld
- Faculty of Science, Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | - F Roth-Walter
- The Interuniversity Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University Vienna, University Vienna, Vienna, Austria
- Centre of Pathophysiology, Infectiology & Immunology, Institute of Pathophysiology & Allergy Research, Medical University Vienna, Vienna, Austria
| | - J Singer
- Centre of Pathophysiology, Infectiology & Immunology, Institute of Pathophysiology & Allergy Research, Medical University Vienna, Vienna, Austria
| | - E Untersmayr
- Centre of Pathophysiology, Infectiology & Immunology, Institute of Pathophysiology & Allergy Research, Medical University Vienna, Vienna, Austria
| | - L Vangelista
- Department of Biomedical Sciences, Nazarbayev University School of Medicine, Astana, Kazakhstan
| | - S N Karagiannis
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, Guy's Hospital, London, UK
- Breast Cancer Now Unit, School of Cancer & Pharmaceutical Sciences, King's College London, Guy's Cancer Centre, London, UK
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9
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Pruzinova K, Sadlova J, Myskova J, Lestinova T, Janda J, Volf P. Leishmania mortality in sand fly blood meal is not species-specific and does not result from direct effect of proteinases. Parasit Vectors 2018; 11:37. [PMID: 29335002 PMCID: PMC5769529 DOI: 10.1186/s13071-018-2613-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 01/02/2018] [Indexed: 01/30/2023] Open
Abstract
Background Leishmania development in sand flies is confined to the alimentary tract and is closely connected with blood meal digestion. Previously, it has been published that activities of sand fly midgut proteases are harmful to Leishmania, especially to amastigote-promastigote transition forms. However, our experiments with various Leishmania-sand fly pairs gave quite opposite results. Methods We evaluated the effect of semi-digested midgut content on different life stages of Leishmania donovani and Leishmania majorin vitro. Various morphological forms of parasites, including macrophage-derived amastigotes and transition forms, were incubated 2 h with midguts dissected at various intervals (6–72 h) post-blood meal or with commercially available proteinase, and their viability was determined using flow cytometry. In parallel, using amastigote-initiated experimental infections, we compared development of L. donovani in sand flies that are either susceptible (Phlebotomus argentipes and P. orientalis) or refractory (P. papatasi and Sergentomyia schwetzi) to this parasite. Results In vitro, sand fly midgut homogenates affected L. major and L. donovani in a similar way; in all sand fly species, the most significant mortality effect was observed by the end of the blood meal digestion process. Surprisingly, the most susceptible Leishmania stages were promastigotes, while mortality of transforming parasites and amastigotes was significantly lower. Parasites were also susceptible to killing by rabbit blood in combination with proteinase, but resistant to proteinase itself. In vivo, L. donovani developed late-stage infections in both natural vectors; in P. argentipes the development was much faster than in P. orientalis. On the other hand, in refractory species P. papatasi and S. schwetzi, promastigotes survived activity of digestive enzymes but were lost during defecation. Conclusions We demonstrated that Leishmania transition forms are more resistant to the killing effect of semi-digested blood meal than 24 h-old promastigotes. Data suggest that Leishmania mortality is not caused directly by sand fly proteases, we assume that this mortality results from toxic products of blood meal digestion. Survival of L. donovani promastigotes in refractory sand flies until blood meal defecation, together with similar mortality of Leishmania parasites incubated in vitro with midgut homogenates of susceptible as well as refractory species, contradict the previously raised hypotheses about the role of midgut proteases in sand fly vector competence to Leishmania. Electronic supplementary material The online version of this article (10.1186/s13071-018-2613-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Katerina Pruzinova
- Department of Parasitology, Faculty of Science, Charles University, Prague, Czech Republic.
| | - Jovana Sadlova
- Department of Parasitology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Jitka Myskova
- Department of Parasitology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Tereza Lestinova
- Department of Parasitology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Jozef Janda
- Cytometry, Faculty of Science, Charles University, Prague, Czech Republic
| | - Petr Volf
- Department of Parasitology, Faculty of Science, Charles University, Prague, Czech Republic
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10
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Pali‐Schöll I, De Lucia M, Jackson H, Janda J, Mueller RS, Jensen‐Jarolim E. Comparing immediate-type food allergy in humans and companion animals-revealing unmet needs. Allergy 2017; 72:1643-1656. [PMID: 28394404 DOI: 10.1111/all.13179] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2017] [Indexed: 12/15/2022]
Abstract
Adverse food reactions occur in human as well as veterinary patients. Systematic comparison may lead to improved recommendations for prevention and treatment in both. In this position paper, we summarize the current knowledge on immediate-type food allergy vs other food adverse reactions in companion animals, and compare this to the human situation. While the prevalence of food allergy in humans has been well studied for some allergens, this remains to be investigated for animal patients, where owner-reported as well as veterinarian-diagnosed food adverse reactions are on the increase. The characteristics of the disease in humans vs dogs, cats, and horses are most often caused by similar, but sometimes species-dependent different pathophysiological mechanisms, prompting the specific clinical symptoms, diagnoses, and treatments. Furthermore, little is known about the allergen molecules causative for type I food allergy in animals, which, like in human patients, could represent predictive biomarkers for risk evaluation. The definite diagnosis of food allergy relies-as in humans-on elimination diet and provocation tests. Besides allergen avoidance in daily practice, novel treatment options and tolerization strategies are underway. Taken together, numerous knowledge gaps were identified in veterinary food allergy, which need to be filled by systematic comparative studies.
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Affiliation(s)
- I. Pali‐Schöll
- Comparative Medicine The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna Medical University of Vienna and University of Vienna Vienna Austria
| | - M. De Lucia
- Clinica Veterinaria Privata San Marco Padova Italy
| | - H. Jackson
- Dermatology Referral Services LTD Glasgow Scotland UK
| | - J. Janda
- Faculty of Science Charles University Prague Czech Republic
| | - R. S. Mueller
- Centre for Clinical Veterinary Medicine Ludwig Maximilian University Munich Munich Germany
| | - E. Jensen‐Jarolim
- Comparative Medicine The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna Medical University of Vienna and University of Vienna Vienna Austria
- Institute of Pathophysiology and Allergy Research Center of Pathophysiology Infectiology and Immunology Medical University of Vienna Vienna Austria
- Allergy Care Allergy Diagnosis and Study Center Vienna Austria
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11
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Jensen‐Jarolim E, Bax HJ, Bianchini R, Capron M, Corrigan C, Castells M, Dombrowicz D, Daniels‐Wells TR, Fazekas J, Fiebiger E, Gatault S, Gould HJ, Janda J, Josephs DH, Karagiannis P, Levi‐Schaffer F, Meshcheryakova A, Mechtcheriakova D, Mekori Y, Mungenast F, Nigro EA, Penichet ML, Redegeld F, Saul L, Singer J, Spicer JF, Siccardi AG, Spillner E, Turner MC, Untersmayr E, Vangelista L, Karagiannis SN. AllergoOncology - the impact of allergy in oncology: EAACI position paper. Allergy 2017; 72:866-887. [PMID: 28032353 PMCID: PMC5498751 DOI: 10.1111/all.13119] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/23/2016] [Indexed: 12/19/2022]
Abstract
Th2 immunity and allergic immune surveillance play critical roles in host responses to pathogens, parasites and allergens. Numerous studies have reported significant links between Th2 responses and cancer, including insights into the functions of IgE antibodies and associated effector cells in both antitumour immune surveillance and therapy. The interdisciplinary field of AllergoOncology was given Task Force status by the European Academy of Allergy and Clinical Immunology in 2014. Affiliated expert groups focus on the interface between allergic responses and cancer, applied to immune surveillance, immunomodulation and the functions of IgE-mediated immune responses against cancer, to derive novel insights into more effective treatments. Coincident with rapid expansion in clinical application of cancer immunotherapies, here we review the current state-of-the-art and future translational opportunities, as well as challenges in this relatively new field. Recent developments include improved understanding of Th2 antibodies, intratumoral innate allergy effector cells and mediators, IgE-mediated tumour antigen cross-presentation by dendritic cells, as well as immunotherapeutic strategies such as vaccines and recombinant antibodies, and finally, the management of allergy in daily clinical oncology. Shedding light on the crosstalk between allergic response and cancer is paving the way for new avenues of treatment.
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Affiliation(s)
- E. Jensen‐Jarolim
- The Interuniversity Messerli Research InstituteUniversity of Veterinary Medicine ViennaMedical University of ViennaViennaAustria
- Institute of Pathophysiology & Allergy ResearchCenter of Pathophysiology, Infectiology & ImmunologyMedical University ViennaViennaAustria
| | - H. J. Bax
- Division of Genetics & Molecular MedicineFaculty of Life Sciences and MedicineSt. John's Institute of DermatologyKing's College LondonLondonUK
- Division of Cancer StudiesFaculty of Life Sciences & MedicineKing's College LondonGuy's HospitalLondonUK
| | - R. Bianchini
- The Interuniversity Messerli Research InstituteUniversity of Veterinary Medicine ViennaMedical University of ViennaViennaAustria
| | - M. Capron
- LIRIC‐Unité Mixte de Recherche 995 INSERMUniversité de Lille 2CHRU de LilleLilleFrance
| | - C. Corrigan
- Division of Asthma, Allergy and Lung BiologyMedical Research Council and Asthma UK Centre in Allergic Mechanisms in AsthmaKing's College LondonLondonUK
| | - M. Castells
- Division of Rheumatology, Immunology and AllergyDepartment of MedicineBrigham and Women's HospitalHarvard Medical SchoolBostonMAUSA
| | - D. Dombrowicz
- INSERMCHU LilleEuropean Genomic Institute of DiabetesInstitut Pasteur de LilleU1011 – récepteurs nucléaires, maladies cardiovasculaires et diabèteUniversité de LilleLilleFrance
| | - T. R. Daniels‐Wells
- Division of Surgical OncologyDepartment of SurgeryDavid Geffen School of Medicine at UCLALos AngelesCAUSA
| | - J. Fazekas
- The Interuniversity Messerli Research InstituteUniversity of Veterinary Medicine ViennaMedical University of ViennaViennaAustria
- Institute of Pathophysiology & Allergy ResearchCenter of Pathophysiology, Infectiology & ImmunologyMedical University ViennaViennaAustria
| | - E. Fiebiger
- Division of Gastroenterology, Hepatology and Nutrition ResearchDepartment of Medicine ResearchChildren's University Hospital BostonBostonMAUSA
| | - S. Gatault
- LIRIC‐Unité Mixte de Recherche 995 INSERMUniversité de Lille 2CHRU de LilleLilleFrance
| | - H. J. Gould
- Division of Asthma, Allergy and Lung BiologyMedical Research Council and Asthma UK Centre in Allergic Mechanisms in AsthmaKing's College LondonLondonUK
- Randall Division of Cell and Molecular BiophysicsKing's College LondonLondonUK
- NIHR Biomedical Research Centre at Guy's and St. Thomas’ Hospitals and King's College LondonKing's College LondonGuy's HospitalLondonUK
| | - J. Janda
- Center PigmodInstitute of Animal Physiology and GeneticsAcademy of Sciences of Czech RepublicLibechovCzech Republic
| | - D. H. Josephs
- Division of Genetics & Molecular MedicineFaculty of Life Sciences and MedicineSt. John's Institute of DermatologyKing's College LondonLondonUK
- Division of Cancer StudiesFaculty of Life Sciences & MedicineKing's College LondonGuy's HospitalLondonUK
| | - P. Karagiannis
- Division of Genetics & Molecular MedicineFaculty of Life Sciences and MedicineSt. John's Institute of DermatologyKing's College LondonLondonUK
- NIHR Biomedical Research Centre at Guy's and St. Thomas’ Hospitals and King's College LondonKing's College LondonGuy's HospitalLondonUK
| | - F. Levi‐Schaffer
- Pharmacology and Experimental Therapeutics UnitFaculty of MedicineSchool of PharmacyThe Institute for Drug ResearchThe Hebrew University of JerusalemJerusalemIsrael
| | - A. Meshcheryakova
- Institute of Pathophysiology & Allergy ResearchCenter of Pathophysiology, Infectiology & ImmunologyMedical University ViennaViennaAustria
| | - D. Mechtcheriakova
- Institute of Pathophysiology & Allergy ResearchCenter of Pathophysiology, Infectiology & ImmunologyMedical University ViennaViennaAustria
| | - Y. Mekori
- Sackler Faculty of MedicineTel‐Aviv UniversityTel‐AvivIsrael
| | - F. Mungenast
- Institute of Pathophysiology & Allergy ResearchCenter of Pathophysiology, Infectiology & ImmunologyMedical University ViennaViennaAustria
| | - E. A. Nigro
- IRCCS San Raffaele Scientific InstituteMilanItaly
| | - M. L. Penichet
- Division of Surgical OncologyDepartment of SurgeryDavid Geffen School of Medicine at UCLALos AngelesCAUSA
- Department of Microbiology, Immunology, and Molecular GeneticsDavid Geffen School of Medicine at UCLALos AngelesCAUSA
- Jonsson Comprehensive Cancer CenterUniversity of CaliforniaLos AngelesCAUSA
| | - F. Redegeld
- Division of PharmacologyFaculty of ScienceUtrecht Institute for Pharmaceutical SciencesUtrecht UniversityUtrechtThe Netherlands
| | - L. Saul
- Division of Genetics & Molecular MedicineFaculty of Life Sciences and MedicineSt. John's Institute of DermatologyKing's College LondonLondonUK
- Division of Cancer StudiesFaculty of Life Sciences & MedicineKing's College LondonGuy's HospitalLondonUK
| | - J. Singer
- Institute of Pathophysiology & Allergy ResearchCenter of Pathophysiology, Infectiology & ImmunologyMedical University ViennaViennaAustria
| | - J. F. Spicer
- Division of Cancer StudiesFaculty of Life Sciences & MedicineKing's College LondonGuy's HospitalLondonUK
- NIHR Biomedical Research Centre at Guy's and St. Thomas’ Hospitals and King's College LondonKing's College LondonGuy's HospitalLondonUK
| | | | - E. Spillner
- Immunological EngineeringDepartment of EngineeringAarhus UniversityAarhusDenmark
| | - M. C. Turner
- ISGlobalCentre for Research in Environmental Epidemiology (CREAL)BarcelonaSpain
- Universitat Pompeu Fabra (UPF)BarcelonaSpain
- CIBER Epidemiología y Salud Pública (CIBERESP)MadridSpain
- McLaughlin Centre for Population Health Risk AssessmentUniversity of OttawaOttawaONCanada
| | - E. Untersmayr
- Institute of Pathophysiology & Allergy ResearchCenter of Pathophysiology, Infectiology & ImmunologyMedical University ViennaViennaAustria
| | - L. Vangelista
- Department of Biomedical SciencesNazarbayev University School of MedicineAstanaKazakhstan
| | - S. N. Karagiannis
- Division of Genetics & Molecular MedicineFaculty of Life Sciences and MedicineSt. John's Institute of DermatologyKing's College LondonLondonUK
- NIHR Biomedical Research Centre at Guy's and St. Thomas’ Hospitals and King's College LondonKing's College LondonGuy's HospitalLondonUK
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12
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Bílková B, Bainová Z, Janda J, Zita L, Vinkler M. Different breeds, different blood: Cytometric analysis of whole blood cellular composition in chicken breeds. Vet Immunol Immunopathol 2017; 188:71-77. [PMID: 28615130 DOI: 10.1016/j.vetimm.2017.05.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 03/16/2017] [Accepted: 05/03/2017] [Indexed: 01/10/2023]
Abstract
While haematological variation is well known in birds, variation in avian breeds (distinct morphotypes of the same species) remains unexplored. Poultry breeds, in particular, may show interesting evolutionary patterns and economically-relevant physiological differences. We performed a comparative examination of blood cellular composition in five chicken (Gallus gallus domesticus) breeds: Araucana, Booted bantam, Czech, Minorca and Rosecomb bantam. In standard-environment-reared hens whole-blood flow cytometry revealed remarkable differences in most erythrocyte- and leukocyte-related parameters. We identified two extremes: Czech, a European breed, with a low heterophil/lymphocyte (H/L) ratio and high CD4+ levels, and Araucana, a South-American breed, with a high H/L ratio and high relative monocyte count. Such variation may reflect a combination of artificial and natural selection acting on health- and stress-related traits in domestic populations. Different breeds have evolved different immunological adaptations reflecting their original need to fight pathogens and physiological constraint resulting from dissimilar physiological trade-offs.
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Affiliation(s)
- Barbora Bílková
- Charles University, Faculty of Science, Department of Zoology, Viničná 7, 128 44 Prague, Czech Republic, EU
| | - Zuzana Bainová
- Charles University, Faculty of Science, Department of Zoology, Viničná 7, 128 44 Prague, Czech Republic, EU; Charles University, Faculty of Science, Department of Cell Biology, Viničná 7, 128 44 Prague, EU, Czech Republic, EU
| | - Jozef Janda
- Charles University, Faculty of Science, Department of Cell Biology, Viničná 7, 128 44 Prague, EU, Czech Republic, EU
| | - Lukáš Zita
- Czech University of Life Sciences Prague, Faculty of Agrobiology, Food and Natural Resources, Department of Animal Husbandry, Kamýcká 129, 165 00 Prague, EU, Czech Republic, EU
| | - Michal Vinkler
- Charles University, Faculty of Science, Department of Zoology, Viničná 7, 128 44 Prague, Czech Republic, EU.
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13
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Dickinson S, Blohm-Mangone K, Burkett N, Tahsin S, Myrdal P, Aodah A, Janda J, Saboda K, Dong Z, Bode A, Petricoin E, Calvert V, Curiel-Lewandrowski C, Wondrak G. 764 A novel strategy for topical photochemoprevention: Pharmacological TLR4 antagonism blocks non-melanoma skin cancer. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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14
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15
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Blaszczak A, Smith R, Gutierrez A, Galbraith D, Janda J, Vanier C, Wozniak E. Molecular mechanism of action for the novel biostimulant CYT31 in plants exposed to drought stress. ACTA ACUST UNITED AC 2016. [DOI: 10.17660/actahortic.2016.1148.10] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Burger D, Meuwly C, Marti E, Sieme H, Oberthür M, Janda J, Meinecke-Tillmann S, Wedekind C. MHC-correlated preferences in diestrous female horses (Equus caballus). Theriogenology 2016; 89:318-323.e1. [PMID: 27842717 DOI: 10.1016/j.theriogenology.2016.09.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Revised: 09/07/2016] [Accepted: 09/07/2016] [Indexed: 12/29/2022]
Abstract
Genes of the major histocompatibility complex (MHC) have been shown to influence communication in many vertebrates, possibly with context-specific MHC-correlated reactions. Here we test for MHC-linked female preferences in the polygynous horse (Equus caballus) by repeatedly exposing 19 mares to a group of seven sexually experienced stallions. Each mare was tested four times during two consecutive reproductive cycles, twice during estrus and twice during diestrus. Male plasma testosterone concentrations were determined from weekly blood samples, and equine leukocyte antigen (ELA) class I and II alleles were determined serologically at the end of the experiments. Perception of male attractiveness was strongly dependent on estrous cycle: mean preference scores did not correlate for mares in diestrus and estrus and varied more during estrus than during diestrus. We found elevated female interests for MHC-dissimilar stallions, but only during diestrus, not during estrus. Female preferences were not significantly predicted by mean male testosterone plasma concentrations. However, testosterone concentrations changed during the 11 weeks of the experiment. By the end of the experiment, average testosterone concentration was significantly correlated to the average number of MHC alleles the stallions shared with the mares. We conclude that the MHC affects female preferences for stallions, but non-MHC linked male characteristics can overshadow effects of the MHC during estrus.
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Affiliation(s)
- D Burger
- Swiss Institute of Equine Medicine, Agroscope and University of Bern, Avenches, Switzerland.
| | - C Meuwly
- Swiss Institute of Equine Medicine, Agroscope and University of Bern, Avenches, Switzerland
| | - E Marti
- Department of Clinical Research, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - H Sieme
- Institute for Reproductive Biology, University of Veterinary Medicine Hanover, Hanover, Germany
| | - M Oberthür
- Unit for Reproductive Medicine-Clinic for Horses, University of Veterinary Medicine Hanover, Hanover, Germany
| | - J Janda
- Department of Clinical Research, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - S Meinecke-Tillmann
- Unit for Reproductive Medicine-Clinic for Horses, University of Veterinary Medicine Hanover, Hanover, Germany
| | - C Wedekind
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, Switzerland
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Abstract
Allergic diseases in animals are increasingly gaining importance in veterinary practice and as research models. For intradermal testing and allergen immunotherapy, a good knowledge of relevant allergens for the individual species is of great importance. Currently, the knowledge about relevant veterinary allergens is based on sensitization rates identified by intradermal testing or serum testing for allergen-specific IgE; crude extracts are the basis for most evaluations. Only a few studies provide evidence about the molecular structure of (particularly) dust mite, insect and mould allergens in dogs and horses, respectively. In those species, some major allergens differ from those in humans. This position paper summarizes the current knowledge about relevant allergens in dogs, cats and horses.
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Affiliation(s)
- R S Mueller
- Centre for Clinical Veterinary Medicine, Ludwig Maximilian University Munich, Munich, Germany
| | - J Janda
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Libechov, Czech Republic
| | - E Jensen-Jarolim
- Comparative Medicine, Messerli Research-Institute, University of Veterinary Medicine Vienna, Medical University Vienna and University Vienna, Vienna, Austria
| | - C Rhyner
- Swiss Institute of Allergy and Asthma Research, Davos, Switzerland
| | - E Marti
- Department of Clinical Research and Veterinary Public Health, University of Bern, Bern, Switzerland
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18
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Skalickova S, Heger Z, Krejcova L, Pekarik V, Bastl K, Janda J, Kostolansky F, Vareckova E, Zitka O, Adam V, Kizek R. Perspective of Use of Antiviral Peptides against Influenza Virus. Viruses 2015; 7:5428-42. [PMID: 26492266 PMCID: PMC4632391 DOI: 10.3390/v7102883] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 09/22/2015] [Accepted: 09/30/2015] [Indexed: 01/13/2023] Open
Abstract
The threat of a worldwide influenza pandemic has greatly increased over the past decade with the emergence of highly virulent avian influenza strains. The increased frequency of drug-resistant influenza strains against currently available antiviral drugs requires urgent development of new strategies for antiviral therapy, too. The research in the field of therapeutic peptides began to develop extensively in the second half of the 20(th) century. Since then, the mechanisms of action for several peptides and their antiviral prospect received large attention due to the global threat posed by viruses. Here, we discussed the therapeutic properties of peptides used in influenza treatment. Peptides with antiviral activity against influenza can be divided into three main groups. First, entry blocker peptides such as a Flupep that interact with influenza hemagglutinin, block its binding to host cells and prevent viral fusion. Second, several peptides display virucidal activity, disrupting viral envelopes, e.g., Melittin. Finally, a third set of peptides interacts with the viral polymerase complex and act as viral replication inhibitors such as PB1 derived peptides. Here, we present a review of the current literature describing the antiviral activity, mechanism and future therapeutic potential of these influenza antiviral peptides.
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Affiliation(s)
- Sylvie Skalickova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic.
| | - Zbynek Heger
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, Brno CZ-616 00, Czech Republic.
| | - Ludmila Krejcova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic.
| | - Vladimir Pekarik
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic.
| | - Karel Bastl
- Wool and Knitting Research Institute, Brno, Sujanovo namesti 3, Brno CZ-602 00, Czech Republic.
| | - Jozef Janda
- Laboratory of Tumour Biology, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Libechov CZ-277 21, Czech Republic.
| | - Frantisek Kostolansky
- Institute of Virology, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovak Republic.
| | - Eva Vareckova
- Institute of Virology, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovak Republic.
| | - Ondrej Zitka
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, Brno CZ-616 00, Czech Republic.
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, Brno CZ-616 00, Czech Republic.
| | - Rene Kizek
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, Brno CZ-616 00, Czech Republic.
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Jonsdottir S, Hamza E, Janda J, Rhyner C, Meinke A, Marti E, Svansson V, Torsteinsdottir S. Developing a preventive immunization approach against insect bite hypersensitivity using recombinant allergens: A pilot study. Vet Immunol Immunopathol 2015; 166:8-21. [PMID: 26004943 DOI: 10.1016/j.vetimm.2015.05.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 04/28/2015] [Accepted: 05/08/2015] [Indexed: 12/22/2022]
Abstract
Insect bite hypersensitivity (IBH) is an allergic dermatitis of horses caused by bites of midges (Culicoides spp.). IgE-mediated reactions are often involved in the pathogenesis of this disease. IBH does not occur in Iceland due to the absence of Culicoides, but it occurs with a high frequency in Icelandic horses exported to mainland Europe, where Culicoides are present. We hypothesize that immunization with the Culicoides allergens before export could reduce the incidence of IBH in exported Icelandic horses. The aim of the present study was therefore to compare intradermal and intralymphatic vaccination using four purified recombinant allergens, in combination with a Th1 focusing adjuvant. Twelve horses were vaccinated three times with 10μg of each of the four recombinant Culicoides nubeculosus allergens. Six horses were injected intralymphatically, three with and three without IC31(®), and six were injected intradermally, in the presence or absence of IC31(®). Antibody responses were measured by immunoblots and ELISA, potential sensitization in a sulfidoleukotriene release test and an intradermal test, cytokine and FoxP3 expression with real time PCR following in vitro stimulation of PBMC. Immunization with the r-allergens induced a significant increase in levels of r-allergen-specific IgG1, IgG1/3, IgG4/7, IgG5 and IgG(T). Application of the r-allergens in IC31(®) adjuvant resulted in a significantly higher IgG1, IgG1/3, IgG4/7 allergen-specific response. Intralymphatic injection was slightly more efficient than intradermal injection, but the difference did not reach significance. Testing of the blocking activity of the sera from the horses immunized intralymphatically with IC31(®) showed that the generated IgG antibodies were able to partly block binding of serum IgE from an IBH-affected horse to these r-allergens. Furthermore, IgG antibodies bound to protein bands on blots of C. nubeculosus salivary gland extract. No allergen-specific IgE was induced and there was no indication of induction of IgE-mediated reactions, as horses neither responded to Culicoides extract stimulation in a sulfidoleukotriene release test, nor developed a relevant immediate hypersensitivity reaction to the recombinant allergens in skin test. IL-4 expression was significantly higher in horses vaccinated intralymphatically without IC31(®), as compared to horses intradermally vaccinated with IC31(®). Both routes gave higher IL-10 expression with IC31(®). Both intralymphatic and intradermal vaccination of horses with recombinant allergens in IC31(®) adjuvant induced an immune response without adverse effects and without IgE production. The horses were not sensitized and produced IgG that could inhibit allergen-specific IgE binding. We therefore conclude that both the injection routes and the IC31(®) adjuvant are strong candidates for further development of immunoprophylaxis and therapy in horses.
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Affiliation(s)
- Sigridur Jonsdottir
- Institute for Experimental Pathology, Biomedical Center, University of Iceland, Keldur, Keldnavegur 3, 112 Reykjavik, Iceland.
| | - Eman Hamza
- Department of Clinical Research and Veterinary Public Health, Vetsuisse Faculty, University of Berne, Länggassstrasse 124, 3012 Berne, Switzerland
| | - Jozef Janda
- Department of Clinical Research and Veterinary Public Health, Vetsuisse Faculty, University of Berne, Länggassstrasse 124, 3012 Berne, Switzerland
| | - Claudio Rhyner
- Swiss Institute of Allergy and Asthma Research (SIAF), Davos, Switzerland
| | - Andreas Meinke
- Valneva Austria GmbH, Campus Vienna Biocenter 3, 1030 Vienna, Austria
| | - Eliane Marti
- Department of Clinical Research and Veterinary Public Health, Vetsuisse Faculty, University of Berne, Länggassstrasse 124, 3012 Berne, Switzerland
| | - Vilhjalmur Svansson
- Institute for Experimental Pathology, Biomedical Center, University of Iceland, Keldur, Keldnavegur 3, 112 Reykjavik, Iceland
| | - Sigurbjorg Torsteinsdottir
- Institute for Experimental Pathology, Biomedical Center, University of Iceland, Keldur, Keldnavegur 3, 112 Reykjavik, Iceland
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Mishra R, Kovalska J, Janda J, Vannucci L, Rajmon R, Horak V. Tumor progression is associated with increasing CD11b+ cells and CCL2 in Lewis rat sarcoma. Anticancer Res 2015; 35:703-711. [PMID: 25667449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Tumor models are essential for basic anticancer research and development of novel therapies. In this study, we used a rat sarcoma model in which subcutaneous tumor develops after D6 cell inoculation. The aim of the current study was to analyze changes in haematological parameters, immune cell sub-populations and cytokine profiling during tumor growth, after tumor excision and after second inoculation of D6 cells. Tumor progression was found to be associated with an increased number of leukocytes and increased proportion of CD11b+ cells in peripheral blood. Serum concentration of chemokine (c-c motif) ligand 2, L-selectin and intra cellular adhesion molecule-1 also increased with growing tumor. However, the proportion of CD4+, CD8+ and MHC II+ cells decreased with growth of tumors. After tumor excision, all these parameters returned to pre-inoculation levels and did not change even after a second inoculation of D6 cells. Moreover, absence of secondary tumors after second inoculation of D6 cells gives an insight into development of antitumor immunity stimulated by primary tumor.
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Affiliation(s)
- Rajbardhan Mishra
- Institute of Animal Physiology and Genetics AS CR, v.v.i., Libechov, Czech Republic Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic
| | - Jana Kovalska
- Institute of Animal Physiology and Genetics AS CR, v.v.i., Libechov, Czech Republic Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic
| | - Jozef Janda
- Institute of Animal Physiology and Genetics AS CR, v.v.i., Libechov, Czech Republic
| | - Luca Vannucci
- Institute of Animal Physiology and Genetics AS CR, v.v.i., Libechov, Czech Republic Institute of Microbiology AS CR, v.v.i., Prague, Czech Republic
| | - Radko Rajmon
- Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic
| | - Vratislav Horak
- Institute of Animal Physiology and Genetics AS CR, v.v.i., Libechov, Czech Republic
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Janda J, Lehmann M, Luttmann W, Marti E. Cloning and expression of recombinant equine interleukin-3 and its effect on sulfidoleukotriene and cytokine production by equine peripheral blood leukocytes. Vet Immunol Immunopathol 2014; 163:202-9. [PMID: 25530476 DOI: 10.1016/j.vetimm.2014.11.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2013] [Revised: 11/10/2014] [Accepted: 11/13/2014] [Indexed: 10/24/2022]
Abstract
Interleukin-3 is a growth and differentiation factor for various hematopoietic cells. IL-3 also enhances stimulus-dependent release of mediators and cytokine production by mature basophils. Function of IL-3 has not been studied in horses because of lack of horse-specific reagents. Our aim was to produce recombinant equine IL-3 and test its effect on sulfidoleukotriene and cytokine production by equine peripheral blood leukocytes (PBL). Equine IL-3 was cloned, expressed in E. coli and purified. PBL of 19 healthy and 20 insect bite hypersensitivity (IBH)-affected horses were stimulated with Culicoides nubeculosus extract with or without IL-3. Sulfidoleukotriene (sLT) production was measured in supernatants by ELISA and mRNA expression of IL-4, IL-13 and thymic stromal lymphopoietin (TSLP) assessed in cell lysate by quantitative real-time PCR. Recombinant equine IL-3 (req-IL-3) had a dose dependent effect on sLT production by stimulated equine PBL and significantly increased IL-4, IL-13 and TSLP expression compared to non-primed cells. IL-3 priming significantly increased Culicoides-induced sLT production in IBH-affected but not in non-affected horses and was particularly effective in young IBH-affected horses (≤ 3 years). A functionally active recombinant equine IL-3 has been produced which will be useful for future immunological studies in horses. It will also allow improving the sensitivity of cellular in vitro tests for allergy diagnosis in horses.
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Affiliation(s)
- Jozef Janda
- Department of Clinical Research-VPH, Vetsuisse Faculty, University of Bern, Switzerland; Center Pigmod, Institute of Animal Physiology and Genetics, Academy of Sciences of Czech Republic, Libechov, Czech Republic
| | | | | | - Eliane Marti
- Department of Clinical Research-VPH, Vetsuisse Faculty, University of Bern, Switzerland.
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Klukowska-Rötzler J, Chervet L, Müller EJ, Roosje P, Marti E, Janda J. Expression of thymic stromal lymphopoietin in canine atopic dermatitis. Vet Dermatol 2013; 24:54-9.e13-4. [DOI: 10.1111/j.1365-3164.2012.01096.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Jandova V, Klukowska-Rötzler J, Dolf G, Janda J, Roosje P, Marti E, Koch C, Gerber V, Swinburne J. Whole genome scan identifies several chromosomal regions linked to equine sarcoids. SCHWEIZ ARCH TIERH 2013; 154:19-25. [DOI: 10.1024/0036-7281/a000288] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Hinden S, Klukowska-Rötzler J, Janda J, Marti EI, Gerber V, Roosje PJ. Characterization of the inflammatory infiltrate and cytokine expression in the skin of horses with recurrent urticaria. Vet Dermatol 2012; 23:503-e99. [DOI: 10.1111/j.1365-3164.2012.01117.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Janda J, Plattet P, Torsteinsdottir S, Jonsdottir S, Zurbriggen A, Marti E. Generation of equine TSLP-specific antibodies and their use for detection of TSLP produced by equine keratinocytes and leukocytes. Vet Immunol Immunopathol 2012; 147:180-6. [DOI: 10.1016/j.vetimm.2012.04.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 04/10/2012] [Accepted: 04/12/2012] [Indexed: 11/24/2022]
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Hauswirth R, Haase B, Blatter M, Brooks SA, Burger D, Drögemüller C, Gerber V, Henke D, Janda J, Jude R, Magdesian KG, Matthews JM, Poncet PA, Svansson V, Tozaki T, Wilkinson-White L, Penedo MCT, Rieder S, Leeb T. Mutations in MITF and PAX3 cause "splashed white" and other white spotting phenotypes in horses. PLoS Genet 2012; 8:e1002653. [PMID: 22511888 PMCID: PMC3325211 DOI: 10.1371/journal.pgen.1002653] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Accepted: 02/28/2012] [Indexed: 01/26/2023] Open
Abstract
During fetal development neural-crest-derived melanoblasts migrate across the entire body surface and differentiate into melanocytes, the pigment-producing cells. Alterations in this precisely regulated process can lead to white spotting patterns. White spotting patterns in horses are a complex trait with a large phenotypic variance ranging from minimal white markings up to completely white horses. The "splashed white" pattern is primarily characterized by an extremely large blaze, often accompanied by extended white markings at the distal limbs and blue eyes. Some, but not all, splashed white horses are deaf. We analyzed a Quarter Horse family segregating for the splashed white coat color. Genome-wide linkage analysis in 31 horses gave a positive LOD score of 1.6 in a region on chromosome 6 containing the PAX3 gene. However, the linkage data were not in agreement with a monogenic inheritance of a single fully penetrant mutation. We sequenced the PAX3 gene and identified a missense mutation in some, but not all, splashed white Quarter Horses. Genome-wide association analysis indicated a potential second signal near MITF. We therefore sequenced the MITF gene and found a 10 bp insertion in the melanocyte-specific promoter. The MITF promoter variant was present in some splashed white Quarter Horses from the studied family, but also in splashed white horses from other horse breeds. Finally, we identified two additional non-synonymous mutations in the MITF gene in unrelated horses with white spotting phenotypes. Thus, several independent mutations in MITF and PAX3 together with known variants in the EDNRB and KIT genes explain a large proportion of horses with the more extreme white spotting phenotypes.
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Affiliation(s)
- Regula Hauswirth
- Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- DermFocus, University of Bern, Bern, Switzerland
| | - Bianca Haase
- Faculty of Veterinary Science, University of Sydney, Sydney, Australia
| | | | - Samantha A. Brooks
- Department of Animal Science, Cornell University, Ithaca, New York, United States of America
| | - Dominik Burger
- Swiss National Stud, ALP-Haras, Avenches, Switzerland
- Swiss Institute of Equine Medicine, Vetsuisse Faculty, ALP-Haras and University of Bern, Avenches, Switzerland
| | - Cord Drögemüller
- Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- DermFocus, University of Bern, Bern, Switzerland
| | - Vincent Gerber
- Swiss Institute of Equine Medicine, Vetsuisse Faculty, University of Bern and ALP-Haras, Bern, Switzerland
| | - Diana Henke
- Division of Neurology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Jozef Janda
- Division of Experimental Clinical Research, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | | | - K. Gary Magdesian
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California Davis, Davis, California, United States of America
| | | | | | - Vilhjálmur Svansson
- Institute for Experimental Pathology, University of Iceland, Reykjavík, Iceland
| | - Teruaki Tozaki
- Department of Molecular Genetics, Laboratory of Racing Chemistry, Utsunomiya, Japan
| | | | - M. Cecilia T. Penedo
- Veterinary Genetics Laboratory, School of Veterinary Medicine, University of California Davis, Davis, California, United States of America
| | - Stefan Rieder
- Swiss National Stud, ALP-Haras, Avenches, Switzerland
| | - Tosso Leeb
- Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- DermFocus, University of Bern, Bern, Switzerland
- * E-mail:
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Schaffartzik A, Hamza E, Janda J, Crameri R, Marti E, Rhyner C. Equine insect bite hypersensitivity: what do we know? Vet Immunol Immunopathol 2012; 147:113-26. [PMID: 22575371 DOI: 10.1016/j.vetimm.2012.03.017] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2011] [Revised: 02/26/2012] [Accepted: 03/27/2012] [Indexed: 11/29/2022]
Abstract
Insect bite hypersensitivity (IBH) is an allergic dermatitis of the horse caused by bites of insects of the genus Culicoides and is currently the best characterized allergic disease of horses. This article reviews knowledge of the immunopathogenesis of IBH, with a particular focus on the causative allergens. Whereas so far hardly any research has been done on the role of antigen presenting cells in the pathogenesis of IBH, recent studies suggest that IBH is characterized by an imbalance between a T helper 2 (Th2) and regulatory T cell (T(reg)) immune response, as shown both locally in the skin and with stimulated peripheral blood mononuclear cells. Various studies have shown IBH to be associated with IgE-mediated reactions against salivary antigens from Culicoides spp. However, until recently, the causative allergens had not been characterized at the molecular level. A major advance has now been made, as 11 Culicoides salivary gland proteins have been identified as relevant allergens for IBH. Currently, there is no satisfactory treatment of IBH. Characterization of the main allergens for IBH and understanding what mechanisms induce a healthy or allergic immune response towards these allergens may help to develop new treatment strategies, such as immunotherapy.
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Affiliation(s)
- A Schaffartzik
- Swiss Institute of Allergy and Asthma Research-SIAF, University of Zürich, Obere Strasse 22, CH-7270 Davos, Switzerland
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Klukowska-Rötzler J, Marti E, Lavoie JP, Ainsworth DM, Gerber V, Zurbriggen A, Janda J. Expression of thymic stromal lymphopoietin in equine recurrent airway obstruction. Vet Immunol Immunopathol 2012; 146:46-52. [PMID: 22341524 DOI: 10.1016/j.vetimm.2012.01.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Revised: 01/16/2012] [Accepted: 01/23/2012] [Indexed: 11/28/2022]
Abstract
Thymic stromal lymphopoietin (TSLP) is a cytokine involved in lymphocyte development. In humans and mice, TSLP drives the differentiation of T helper 2 (Th2) cells and the development of allergic inflammation. The equine TSLP gene has been previously identified and characterized, but its role in the pathogenesis of equine allergic diseases is not known. Our objective was to assess the expression of TSLP in bronchoalveolar lavage (BAL) cells and in primary bronchial epithelial cells (BEC) isolated from horses with recurrent airway obstruction (RAO). RNA was isolated from BAL cells sampled from clinical cases of RAO (n=8) and from control horses (n=12). Furthermore, BAL samples were taken from an additional group of 8 RAO-susceptible and 8 control horses when on pasture (remission) and after 30 days of exposure to moldy hay (exacerbation). In order to study epithelial cells as a potential source of TSLP, cultures of primary bronchial epithelial cells (BEC) were established from 6 RAO-affected and 6 healthy horses and stimulated in vitro with hay dust solution (HDS). Expression of TSLP mRNA was assessed by quantitative real-time RT-PCR (qPCR). Clinical RAO-cases had higher TSLP expression in BAL than control horses (p<0.05). In an experimental group of horses there was no difference between healthy and susceptible horses in remission, whereas after 30-day experimental exposure to moldy hay, all susceptible horses upregulated TSLP expression in BAL (p=0.008, average 6.36-fold increase), whereas in healthy horses there was no significant increase in TSLP expression. BEC generated both from healthy and RAO-affected horses strongly upregulated TSLP expression after 6 h stimulation with HDS, which identifies epithelial cells as potential sources of TSLP in RAO. Finding of increased TSLP expression by BAL cells of RAO-affected horses is in agreement with the contribution of Th2-driven allergic inflammation in the pathogenesis of RAO.
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Dvořáková HM, Szitányi P, Dvořák P, Janda J, Seeman T, Zieg J, Lánská V, Kotaška K, Piťha J. Determinants of premature atherosclerosis in children with end-stage renal disease. Physiol Res 2011; 61:53-61. [PMID: 22188103 DOI: 10.33549/physiolres.932127] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Cardiovascular disease is a major cause of morbidity and mortality in young adults with end-stage renal disease (ESRD), but its basis is still not well understood. We therefore evaluated the determinants of atherosclerosis in children with ESRD. A total of 37 children with ESRD (with 31 who had undergone transplantation) were examined and compared to a control group comprising 22 healthy children. The common carotid intima-media thickness (CIMT) was measured by ultrasound as a marker of preclinical atherosclerosis. The association of CIMT with anthropometrical data, blood pressure, plasma lipid levels, and other biochemical parameters potentially related to cardiovascular disease was evaluated. Children with ESRD had significantly higher CIMT, blood pressure, and levels of lipoprotein (a), urea, creatinine, ferritin, homocysteine, and serum uric acid as well as significantly lower values of apolipoprotein A. The atherogenic index of plasma (log(triglycerides/HDL cholesterol)) was also higher in patients with ESRD; however, this difference reached only borderline significance. In addition, a negative correlation was found between CIMT and serum albumin and bilirubin in the ESRD group, and this correlation was independent of age and body mass index. In the control group, a significant positive correlation was observed between CIMT and ferritin levels. Factors other than traditional cardiovascular properties, such as the anti-oxidative capacity of circulating blood, may be of importance during the early stages of atherosclerosis in children with end-stage renal disease.
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Affiliation(s)
- H M Dvořáková
- Department of Neonatology, University Hospital Prague-Motol, Prague, Czech Republic.
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Huber S, Roosje PJ, Janda J, Schnyder M, Jungi TW, Bertoni G, Zurbriggen A, Burgener IA. Characterization of antibodies specific for canine TLR4, 5 and 9 by ELISA, Western blotting and immunohistochemistry. Vet Immunol Immunopathol 2011; 144:247-54. [DOI: 10.1016/j.vetimm.2011.08.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2010] [Revised: 08/16/2011] [Accepted: 08/31/2011] [Indexed: 02/06/2023]
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Klukowska-Rötzler J, Swinburne JE, Drögemüller C, Dolf G, Janda J, Leeb T, Gerber V. The interleukin 4 receptor gene and its role in recurrent airway obstruction in Swiss Warmblood horses. Anim Genet 2011; 43:450-3. [PMID: 22497430 DOI: 10.1111/j.1365-2052.2011.02277.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Recurrent airway obstruction (RAO) in horses is the result of an interaction of genetic and environmental factors and shares many characteristics with human asthma. Many studies have suggested that the interleukin-4 receptor gene (IL4R) is associated with this disease, and a QTL region on chromosome 13 containing IL4R was previously detected in one of the two Swiss Warmblood families. We sequenced the entire IL4R gene in this family and detected 93 variants including five non-synonymous protein-coding variants. The allele distribution at these SNPs supported the previously detected QTL signal. Subsequently, we investigated IL4R mRNA expression in bronchoalveolar lavage fluid cells. During exacerbation, IL4R expression was increased in RAO-affected offspring in the implicated family, but not in the other family. These findings support that IL4R plays a role in some cases of RAO.
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Sova Z, Trefný D, Koudela K, Janda J, Pujman V, Hrdinová A. Dynamik der Alkali-Phosphatase-Aktivität im Supernatanten des Leberhomogenats und im Blutserum bei Jagdfasan (Phasianus colchicus L.) in den ersten drei Lebensmonaten und bei erwachsenen Fasanen. ACTA ACUST UNITED AC 2010. [DOI: 10.1111/j.1439-0442.1974.tb01142.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Klukowska-Rötzler J, Marti E, Bugno M, Leeb T, Janda J. Molecular cloning and characterization of equine thymic stromal lymphopoietin. Vet Immunol Immunopathol 2010; 136:346-9. [PMID: 20417573 DOI: 10.1016/j.vetimm.2010.03.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2010] [Accepted: 03/24/2010] [Indexed: 10/19/2022]
Abstract
Thymic stromal lymphopoietin (TSLP) is a novel cytokine that plays a central role in T helper 2 (Th2) cell differentiation and allergic inflammation. It is predominantly expressed by epithelial cells, and its expression is increased in patients with atopic dermatitis and asthma. Mice overexpressing TSLP in the skin develop allergic dermatitis and mice overexpressing TSLP in lungs develop asthma-like disease. However, it is not known whether TSLP plays an important role in equine allergies. Therefore, we cloned and sequenced the complete translated region of equine TSLP gene and measured its expression in various tissues. The equine TSLP gene is organized in 4 exons and encodes a protein of 143 amino acids, which has 62% amino acid identity with human TSLP.
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Garcia Casado J, Janda J, Wei J, Chapatte L, Colombetti S, Alves P, Ritter G, Ayyoub M, Valmori D, Chen W, Lévy F. Lentivector immunization induces tumor antigen‐specific B and T cell responsesin vivo. Eur J Immunol 2008; 38:1867-76. [DOI: 10.1002/eji.200737923] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Szitanyi P, Dokoupilova M, Spalova I, Cerny M, Janda J, Poledne R. INTRAUTERINE GROWTH RETARDATION AND HIGH CHOLESTEROL LEVEL IN NEWBORNS. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70371-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Holtappels R, Janda J, Thomas D, Schenk S, Reddehase MJ, Geginat G. Adoptive CD8 T cell control of pathogens cannot be improved by combining protective epitope specificities. J Infect Dis 2008; 197:622-9. [PMID: 18240950 DOI: 10.1086/526791] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Adoptive transfer of CD8 T cells has the potential to cure infectious or malignant diseases that are refractory to conventional chemotherapy. A practically important but still unanswered question is whether mixtures of protective CD8 T cells with different epitope specificities mediate more efficient effector cell functions than do the monospecific individual CD8 T cell populations. In this study, we have addressed this issue for models of viral and bacterial infection. CD8 T cell-mediated cytotoxicity in vitro and protection in vivo were assessed to test whether CD8 T cell lines cooperate in target cell lysis and control of infection, respectively. Our data clearly show that mixtures of cytolytic T cell lines specific for different epitopes of either murine cytomegalovirus or Listeria monocytogenes do not act synergistically. An efficient anti-infectious protection thus proved to be dependent primarily on the number of transferred protective CD8 T cells rather than on the cooperative effects of multiple specificities.
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Affiliation(s)
- Rafaela Holtappels
- Institut für Virologie, Johannes Gutenberg-Universität Mainz, Mainz, Germany
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Fencl F, Simková E, Vondrák K, Janda J, Chadimová M, Stejskal J, Seeman T. Recurrence of nephrotic proteinuria in children with focal segmental glomerulosclerosis after renal transplantation treated with plasmapheresis and immunoadsorption: case reports. Transplant Proc 2008; 39:3488-90. [PMID: 18089416 DOI: 10.1016/j.transproceed.2007.09.045] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2006] [Revised: 07/30/2007] [Accepted: 09/13/2007] [Indexed: 01/01/2023]
Abstract
Idiopathic focal segmental glomerulosclerosis (FSGS) is believed to be caused by a circulating permeability factor. FSGS recurrence is common after transplantation. The treatment is still a matter of debate; plasmapheresis (PE) and immunoadsorption (IA) are often used. We report on PE and IA in the treatment of two children with recurrent nephrotic proteinuria. Patient 1 was a 16-year-old girl who had recurrence of nephrotic proteinuria on the first day after transplantation (proteinuria-19 g/d). Primary immunosuppressive therapy was changed to high-dose cyclosporine and cyclophosphamide; plasmapheresis was started on day 4. Altogether we performed 53 PE and 38 IA procedures. During the first month, PE procedures were performed with no more than a 2-day interval between sessions, and the girl achieved partial remission (proteinuria 3 g/d). PE was then stopped. After 2 months, a relapse of heavy proteinuria occurred. This relapse was successfully treated again with intensified PE treatment. After achieving remission, a chronic PE regimen was started (PE once a week), similar to the previous series. The child remained in partial remission. Seven months after renal transplantation, she was switched from PE to IA, because of severe hypoproteinemia. Graft biopsy performed at 4 months showed effacement of the foot processes. At the present time she has a good graft function and 3 g/d proteinuria. Patient 2 was a 13-year-old girl with FSGS since 9 years. On the second day after renal transplantation she developed nephrotic proteinuria (proteinuria-14 g/d), which was treated with 39 PE and 16 IA treatments. She went into complete remission on the intensified PE regimen, had one relapse, and was switched to chronic IA. Graft biopsy performed at 2 weeks after transplantation showed effacement of the foot processes. At the present time she has good graft function and low proteinuria (0.3 g/d). In conclusion, intensified PE or IA treatments induced remission of recurrent nephrotic range proteinuria. Chronic PE or IA can maintain patients with frequent relapses in long-term remission.
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Affiliation(s)
- F Fencl
- Department of Pediatrics, University Hospital Motol, Charles University in Prague, 2nd Medical School, Prague, Czech Republic
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Janda J, Geginat G. A deterministic model for the processing and presentation of bacteria-derived antigenic peptides. J Theor Biol 2007; 250:532-46. [PMID: 18061621 DOI: 10.1016/j.jtbi.2007.10.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2007] [Revised: 10/19/2007] [Accepted: 10/23/2007] [Indexed: 11/18/2022]
Abstract
The amount and the dynamics of antigen supply to the cellular antigen processing and presentation machinery differ largely among diverse microbial antigens and various types of antigen presenting cells. The precise influence, however, of antigen supply on the antigen presentation pattern of cells is not known. Here, we provide a basic deterministic mathematical model of antigen processing and presentation of microbial antigens. The model predicts that different types of antigen presenting cells e.g. cells presenting or cross-presenting exogenous antigens, cells infected with replicating microbes, or cells in which microbial antigen synthesis is blocked after a certain period of time have inherently different antigen presentation patterns which are defined by the kinetics of antigen supply. The reevaluation of existing experimental data [Sijts, A.J., Pamer, E.G., 1997. Enhanced intracellular dissociation of major histocompatibility complex class I-associated peptides: a mechanism for optimizing the spectrum of cell surface-presented cytotoxic T lymphocyte epitopes. J. Exp. Med. 185, 1403-1411] describing the processing and presentation of two antigenic peptides derived from the p60 proteins of the facultatively intracellular bacterium Listeria monocytogenes shows that p60 proteins accumulating intracellularly during bacterial infection of cells play no measurable role as substrate for the cytosolic antigen presentation pathway.
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Affiliation(s)
- Jozef Janda
- Institut für Medizinische Mikrobiologie und Hygiene, Fakultät für Medizin Mannheim der Universität Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
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Seeman T, S̆imková E, Kreisinger J, Vondrák K, Dus̆ek J, Dvor̆ák P, Stuchlikova H, Janda J. Reduction of Proteinuria During Intensified Antihypertensive Therapy in Children After Renal Transplantation. Transplant Proc 2007; 39:3150-2. [DOI: 10.1016/j.transproceed.2007.04.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2006] [Revised: 02/20/2007] [Accepted: 04/06/2007] [Indexed: 10/22/2022]
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Paschen A, Song M, Schenk S, Janda J, Nguyen XD, Osen W, Schadendorf D, Geginat G. Identification of a cross-reactive HLA-DRB1*0301-restricted CD4 T cell response directed against cholesterol-binding cytolysins from two different pathogens. Microbes Infect 2006; 8:2034-43. [PMID: 16798043 DOI: 10.1016/j.micinf.2006.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2006] [Revised: 02/28/2006] [Accepted: 03/02/2006] [Indexed: 11/24/2022]
Abstract
Cholesterol-binding cytolysins constitute an evolutionarily conserved family of pore-forming proteins expressed by different gram-positive pathogens. Listeriolysin O, one well-characterized member of the cytolysin family, is also known to induce specific CD4 and CD8 T cell responses upon infection of mice with Listeria monocytogenes. Here we describe an HLA-DRB1*0301-restricted listeriolysin O-derived T cell epitope that is conserved among several members of the cytolysin family. An HLA-DRB1*0301-restricted CD4+ T cell line, established from spleen lymphocytes of L. monocytogenes-infected HLA-DRB1*0301-transgenic mice, cross-reacted with a homologous peptide from perfringolysin O, a cytolysin expressed by Clostridium perfringens. Ex vivo analysis of infected mice revealed an even broader cross-reaction of T cells with homologous peptides derived from perfringolysin O, streptolysin O, and cereolysin O. Interestingly, a cross-reactive memory CD4+ T cell response against the homologous peptides derived from listeriolysin O and perfringolysin O could also be detected in the blood from healthy HLA-DRB1*0301+ human donors. Remarkably, this response was even present in donors who did not exhibit a memory T cell reactivity against a second, non-conserved HLA-DRB1*0301-restricted LLO-derived CD4 T cell epitope, suggesting that cytolysin-producing bacteria other than L. monocytogenes can stimulate a cross-reactive cytolysin-specific immunity.
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Affiliation(s)
- Annette Paschen
- Skin Cancer Unit of the German Cancer Research Center (DKFZ), Faculty for Clinical Medicine Mannheim of the University Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
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Seeman T, Dušek J, Vondrák K, Bláhová K, Šimková E, Kreisinger J, Dvořák P, Kynčl M, Hříbal Z, Janda J. Renal concentrating capacity is linked to blood pressure in children with autosomal dominant polycystic kidney disease. Physiol Res 2006. [DOI: 10.33549/physiolres.930528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
Abstract
Impaired glomerular filtration rate (GFR) is a risk factor for the development of hypertension in patients with autosomal dominant polycystic kidney disease (ADPKD). However, markers of tubular function were not tested whether they are linked to hypertension or blood pressure (BP) level. The aim of our study was to investigate the relationship between renal concentrating capacity and BP in children with ADPKD. Fifty-three children (mean age 11.8+/-4.4 years) were investigated. Standardized renal concentrating capacity test was performed after nasal drop application of desmopressin, BP was measured by ambulatory BP monitoring (ABPM). Renal concentrating capacity was decreased in 58 % of children. The prevalence of hypertension was significantly higher in children with decreased renal concentrating capacity (35 %) than in children with normal renal concentrating capacity (5 %) (p<0.05). Significant negative correlations were found between renal concentrating capacity, ambulatory BP and number of renal cysts (r = -0.29 to -0.39, p<0.05 to p<0.01). In conclusion, the concentrating capacity is decreased in about half of the patients and is linked to BP. Decreased renal concentrating capacity should be considered.
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Seemanová E, Hoch J, Herzogová J, Kawaciuk I, Janda J, Kohoutová M, Seeman P, Varon R, Sperling K. [Mutations in tumor suppressor gene NBS1 in adult patients with malignancies]. Cas Lek Cesk 2006; 145:201-3. [PMID: 16634478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
BACKGROUND Mutations 657del5 and R215W in exon 6 of tumor suppressor gene NBS I are found in 1% Slavic populations. Increased occurrence of cancer was repeatedly reported in adult relatives of patients with Nijmegen breakage syndrome. Among children with oncological problematic, nonsignificantly increased frequency of NBS1 heterozygotes was found, which seems not to play any important role in cancerogenesis in childhood. However, the proportion of NBS heterozygotes among adult patients with malignancies could be significant and their therapy and follow up should respect their hyperradiosensitivity. METHODS AND RESULTS Mutations in exon were studied in 706 adult patients with malignancies. We found 5 NBS heterozygotes, which not more than the population prevalence (1:129-165). Increased frequency of NBS heterozygotes was found among patients with colon and rectal cancer (2/101), breast cancer (1/60), skin malignancies (1/98). CONCLUSIONS Surprisingly only one NBS heterozygote was found among 228 patients with nonHodgkin lymphoma, the malignancy which is a common complication in NBS homozygotes. Other types of malignancies were uncommon and only one R215W heterozygote was found. Comparison frequency of NBS heterozygotes with incidence NBS among person older than 70 years shows significant difference. Prevention of malignancies by avoidance from ionisation could be realized also in relatives of patients after identification of their genotype.
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Affiliation(s)
- E Seemanová
- Oddelení klinické genetiky Ustavu biologie a lékarské genetiky 2. LF UK, Praha.
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Opočenský M, Dvořák P, Malý J, Kramer HJ, Backer A, Kopkan L, Vernerová Z, Tesař V, Zima T, Bader M, Ganten D, Janda J, Vaněčková I. Chronic endothelin receptor blockade reduces end-organ damage independently of blood pressure effects in salt-loaded heterozygous Ren-2 transgenic rats. Physiol Res 2006. [DOI: 10.33549/physiolres.930569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
Abstract
The present study was performed to evaluate the role of an interaction between the endothelin (ET) and the renin-angiotensin systems (RAS) in the development and maintenance of hypertension and in hypertension-associated end-organ damage in heterozygous male and female transgenic rats harboring the mouse Ren-2 renin gene (TGR). Twenty-eight days old heterozygous TGR and age-matched transgene-negative normotensive Hannover Sprague-Dawley rats (HanSD) were randomly assigned to groups with normal-salt (NS) or high-salt (HS) intake. Nonselective ET(A)/ET(B) receptor blockade was achieved with bosentan (100 mg.kg(-1).day(-1)). All male and female HanSD as well as heterozygous TGR on NS exhibited 100 % survival rate until 180 days of age (end of experiment). HS diet in heterozygous TGR induced a transition from benign to malignant phase hypertension. The survival rates in male and in female heterozygous TGR on the HS diet were 46 % and 80 %, respectively, and were significantly improved by administration of bosentan to 76 % and 97 %, respectively. Treatment with bosentan did not influence either the course of hypertension (measured by plethysmography in conscious animals) or the final levels of blood pressure (measured by a direct method in anesthetized rats) in any of the experimental groups of HanSD or TGR. Administration of bosentan in heterozygous TGR fed the HS diet markedly reduced proteinuria, glomerulosclerosis and attenuated the development of cardiac hypertrophy compared with untreated TGR. Our data show that the ET receptor blockade markedly improves the survival rate and ameliorates end-organ damage in heterozygous TGR exposed to HS diet. These findings indicate that the interaction between the RAS and ET systems plays an important role in the development of hypertension-associated end-organ damage in TGR exposed to salt-loading.
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Seeman T, Simková E, Kreisinger J, Vondrák K, Dusek J, Dvorák P, Janda J. [Improved control of hypertension and its effect on graft function in children after renal transplantation]. Cas Lek Cesk 2006; 145:635-8. [PMID: 16995419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
BACKGROUND Hypertension in patients after renal transplantation (RTx) is associated with impaired graft functions and graft survival. Control of hypertension in children after RTx is low--only 20-50 % of children have well controlled hypertension. The aim of this interventional study is to improve blood pressure control and to investigate whether the improved control will improve the graft survival. METHODS AND RESULTS 36 children after RTx (mean age 13.9 +/- 4.4 years, time after RTx 2.7 +/- 2.4) fulfilled the inclusion criteria. Ambulatory blood pressure monitoring (ABPM) and graft function were examined. In children with uncontrolled hypertension, the dose and number of antihypertensive drugs were increased to reach BP <95th centile. ABPM was repeated after 12 months. After 12 months day-time and night-time BP dropped non-significantly, however prevalence of uncontrolled hypertension improved significantly from 42 % to 34 % (p<0.05). Number of antihypertensive drugs increased from 2.1 +/- 0.9 to 2.4 +/- 0.8 drugs per patient (p<0.05), namely that of ACE-inhibitors (from 19% to 27%, p<0.05). Graft function decreased by 3.6 ml/min/1.73m2/year (p<0.05). CONCLUSIONS This 12 months interventional trial demonstrated that control of hypertension in children after RTx can be improved by increasing number of prescribed antihypertensive drugs. The decline of graft function was lower comparing with previous trials.
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Affiliation(s)
- T Seeman
- Pediatrická klinika 2 LF UK a FNM, Praha.
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Abstract
Proteinuria is associated with poor long-term allograft as well as patient survival among adults after renal transplantation. In children, there are no studies focusing primarily on posttransplant proteinuria. The aim of this cross-sectional study was to investigate the prevalence of and possible risk factors associated with proteinuria. Thirty-three children (mean age of 13.7 +/- 4.3 years; mean time after renal transplantation = 2.3 +/- 2.2 years) were eligible for the study. There was an 82% prevalence of proteinuria (> or =96 mg/m2/d) with nephrotic range proteinuria (> or =960 mg/m2/d) in 12% of children. The mean urinary protein excretion was 256 +/- 299 mg/m2/d (range = 47 to 1264). Children with hypertension, as defined by ambulatory blood pressure monitoring, showed significantly higher proteinuria than normotensive children (382 +/- 435 vs 163 +/- 79 mg/m2/d, P < .05). Children with a history of a previous acute rejection episode showed significantly higher proteinuria than children who never had an episode (416 +/- 445 vs 165 +/- 91 mg/m2/d, P < .05). Children with proteinuria did not show statistically different graft function than children without proteinuria. No statistically significant correlation was observed between proteinuria and ambulatory blood pressure values or graft function. In conclusion, proteinuria is a frequent finding also in children after renal transplantation; it is associated with hypertension and a history of rejection episodes.
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Affiliation(s)
- T Seeman
- Department of Pediatrics, University Hospital Motol, Prague, Czech Republic.
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Abstract
Arterial hypertension is a common complication in children after renal transplantation and the control of hypertension is often difficult. This retrospective investigates the prevalence and rate of control of hypertension using ambulatory blood pressure monitoring (ABPM) in 45 children (mean age 14.1 +/- 4.3 years, mean time after renal transplantation 2.2 +/- 2.7 years), all on cyclosporine or tacrolimus, azathioprine or mycophenolate mofetil plus daily steroids. The overall prevalence of hypertension was 82%. None of the transplanted children had normal blood pressure without antihypertensive therapy (ie, spontaneous normotension). Twenty percent of children had untreated hypertension, 18% had controlled hypertension, and 62% had uncontrolled hypertension. Prevalence of the nondipping phenomenon was 53%. The mean number of antihypertensive drugs (without diuretic monotherapy) in treated patients was 1.9 drugs per patient. The prevalence of arterial hypertension in children after renal transplantation is high and the control of hypertension is often unsatisfactorily low.
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Affiliation(s)
- T Seeman
- First Department of Pediatrics, University Hospital Motol, Prague, Czech Republic.
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Stritzker J, Janda J, Schoen C, Taupp M, Pilgrim S, Gentschev I, Schreier P, Geginat G, Goebel W. Growth, virulence, and immunogenicity of Listeria monocytogenes aro mutants. Infect Immun 2004; 72:5622-9. [PMID: 15385459 PMCID: PMC517589 DOI: 10.1128/iai.72.10.5622-5629.2004] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Mutants of Listeria monocytogenes with deletions in genes of the common branch of the biosynthesis pathway leading to aromatic compounds were constructed as possible virulence-attenuated carrier strains for protein antigens or vaccine DNA. aroA, aroB, and in particular aroE mutants showed strongly reduced growth rates in epithelial cells and even in rich culture media. The metabolism of the aro mutants under these conditions was predominantly anaerobic. Aerobic metabolism and a wild-type growth rate were, however, regained upon the addition of vitamin K2, suggesting that the aro mutants are deficient in oxidative respiration due to the lack of menaquinone. Replication of the aro mutants in the host cell's cytosol and cell-to-cell spread were drastically slowed down, and all aro mutants showed high virulence attenuation in mice, i.e., the 50% lethal dose in BALB/c mice was increased at least 10(4)-fold for the aroA, aroB, and aroA/B mutants and >10(5)-fold for the aroE mutant compared to the parent strain. Nevertheless, mice preimmunized with aro mutant bacteria elicited good T-cell response and full protection against a subsequent challenge with the virulent wild-type strain. A total of 5 x 10(6) aroA, aroB, and aroA/B mutant bacteria were sufficient to obtain a protective T-cell response, while 5 x 10(8) aroE or aroA/E mutants were necessary to achieve comparable numbers of antigen-specific T cells. These numbers were well tolerated without causing any signs of disease, indicating that Listeria strains with deletions in genes of the basic branch of the aromatic amino acid pathway could be useful vaccine carriers for inducing T-cell immunity.
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Affiliation(s)
- Jochen Stritzker
- Lehrstuhl für Mikrobiologie am Biozentrum der Universität Würzburg, Würzburg, Germany
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Janda J, Schöneberger P, Skoberne M, Messerle M, Rüssmann H, Geginat G. Cross-Presentation ofListeria-Derived CD8 T Cell Epitopes Requires Unstable Bacterial Translation Products. J Immunol 2004; 173:5644-51. [PMID: 15494515 DOI: 10.4049/jimmunol.173.9.5644] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Presentation of bacteria-derived CD8 T cell epitopes by dendritic cells (DC) requires either their direct infection or that DC acquire and cross-present Ags from other infected cells. We found that cross-presentation of Listeria monocytogenes-derived CD8 T cell epitopes was much stronger than direct Ag presentation by infected murine DC. Cross-presentation of Listeria-derived CD8 T cell epitopes showed unique physiological requirements. It was dependent upon the delivery of unstable bacterial translation products by infected, but still viable, Ag donor cells. Cross-presentation was enhanced both when unstable translation products in infected Ag donor cells were protected from proteasomal degradation and when the production of misfolded bacterial proteins was increased. The requirement of unstable translation products for cross-presentation may represent a novel pathway that functions to focus the CD8 T cell response toward epitopes derived from newly synthesized proteins.
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Affiliation(s)
- Jozef Janda
- Institut für Medizinische Mikrobiologie und Hygiene, Fakultät für Klinische Medizin Mannheim der Universität Heidelberg, Mannheim, Germany
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Szitányi P, Janda J, Poledne R. Intrauterine undernutrition and programming as a new risk of cardiovascular disease in later life. Physiol Res 2004; 52:389-95. [PMID: 12899650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023] Open
Abstract
It is believed that atherogenesis is a multifactorial process, which could already start in utero. Development of atherosclerosis progresses over decades and leads to the cardiovascular morbidity and mortality in adulthood. At present, we have no exact explanation for all the risk factors acting in the pathogenesis of atherosclerosis. This review should provide an overview about the possible role of intrauterine undernutrition in the development of risk factors for cardiovascular disease. Intrauterine undernutrition leads to changes in fetal growth and metabolism and programs later development of some of these risk factors. A number of experimental and human studies indicates that hypertension as well as impaired cholesterol and glucose metabolism are affected by intrauterine growth. Intrauterine undernutrition plays an important role and acts synergistically with numerous genetic and environmental factors in the development of atherosclerosis. There is evidence that undernutrition of the fetus has permanent effects on the health status of human individuals.
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Affiliation(s)
- P Szitányi
- First Department of Pediatrics, Second Medical School, Charles University, University Hospital Motol, V úvalu 84, 150 06 Prague 5, Czech Republic.
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