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Martins JO, Moritz E, Abbas SA, Bayat B, Barros MMO, de Marco R, Machado RF, Bordin JO. Analysis of maternal Fc gamma receptor IIIb isoantibodies using immunomagnetic negative selected neutrophils. Vox Sang 2024. [PMID: 38597364 DOI: 10.1111/vox.13631] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/15/2024] [Accepted: 03/24/2024] [Indexed: 04/11/2024]
Abstract
BACKGROUND AND OBJECTIVES The isolation of neutrophils and subsequent detection of anti-human neutrophil antigens (HNA) antibodies are crucial in clinical medicine for the diagnosis of autoimmune neutropenia, neonatal alloimmune neutropenia (NAIN) and transfusion-related acute lung injury (TRALI). This study reports two cases of maternal anti-Fc-gamma-receptor-IIIb (FcγRIIIb) isoimmunization without NAIN symptoms and compares the efficiency of immunomagnetic negative selection (IMNS) with traditional dextran/Ficoll for neutrophil isolation in HNA serological assays. MATERIALS AND METHODS Investigating two cases of maternal anti-FcγRIIIb isoimmunization, neutrophils from three donors were isolated from 8 mL of whole blood using IMNS and dextran/Ficoll. Serological assays included the granulocyte agglutination and immunofluorescence test, monoclonal antibody immobilization of granulocyte antigens and the LABScreen Multi (One Lambda). IMNS and dextran/Ficoll were compared in terms of cell yield, viability, time, cost and purity. RESULTS Maternal anti-FcγRIIIb isoantibodies with FCGR3B gene deletion were detected in both cases. Newborns and fathers exhibited specific gene combinations: FCGR3B*02/FCGR3B*02 (Case 1) and FCGR3B*02/FCGR3B*03 (Case 2). IMNS outperformed dextran/Ficoll, yielding four times more neutrophils (average neutrophil counts: 18.5 × 103/μL vs. 4.5 × 103/μL), efficiently removing non-neutrophil cells and reducing processing time (30-40 min vs. 70-90 min), although it incurred a higher cost (2.7 times). CONCLUSION Two cases of maternal anti-FcγRIIIb isoantibodies, unrelated to NAIN, were identified. Although neutropenia has not been described in these cases, we emphasize the importance of identifying asymptomatic cases with the potential for severe neutropenia. Additionally, IMNS is introduced as a rapid, high-yield, high-purity neutrophil isolation technique, beneficial for serological assays detecting anti-HNA antibodies.
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Affiliation(s)
- Juliana Oliveira Martins
- Department of Clinical and Experimental Oncology, Universidade Federal de São Paulo, UNIFESP, São Paulo, Brazil
| | - Elyse Moritz
- Department of Clinical and Experimental Oncology, Universidade Federal de São Paulo, UNIFESP, São Paulo, Brazil
| | - Samira Ali Abbas
- Department of Clinical and Experimental Oncology, Universidade Federal de São Paulo, UNIFESP, São Paulo, Brazil
- Hospital Geral de Guarulhos, São Paulo, Brazil
| | - Behnaz Bayat
- Institute for Clinical Immunology, Transfusion Medicine, and Haemostasis, Justus Liebig University, Giessen, Germany
| | - Melca Maria Oliveira Barros
- Department of Clinical and Experimental Oncology, Universidade Federal de São Paulo, UNIFESP, São Paulo, Brazil
| | | | | | - José Orlando Bordin
- Department of Clinical and Experimental Oncology, Universidade Federal de São Paulo, UNIFESP, São Paulo, Brazil
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2
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Traum A, Jehle S, Waxmann Y, Litmeyer AS, Berghöfer H, Bein G, Dammann R, Perniss A, Burg-Roderfeld M, Sachs UJ, Bayat B. The CD177 c.1291A Allele Leads to a Loss of Membrane Expression and Mimics a CD177-Null Phenotype. Int J Mol Sci 2024; 25:2877. [PMID: 38474126 DOI: 10.3390/ijms25052877] [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] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 02/18/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024] Open
Abstract
CD177 is a glycosyl phosphatidyl inositol (GPI)-linked, neutrophil-specific glycoprotein that in 3-5% of normal individuals is absent from all neutrophils. The molecular mechanism behind the absence of CD177 has not been unravelled completely. Here, we analyse the impact of the recently described CD177 c.1291G>A variant on CD177 expression. Recombinant CD177 c.1291G>A was expressed in HEK293F cells and its expression on the cell surface, inside the cell, and in the culture supernatant was investigated. The CD177 c.1291G>A protein was characterised serologically and its interaction with proteinase 3 (PR3) was demonstrated by confocal laser scanning microscopy. Our experiments show that CD177 c.1291G>A does not interfere with CD177 protein biosynthesis but affects the membrane expression of CD177, leading to very low copy numbers of the protein on the cellular surface. The mutation does not interfere with the ability of the protein to bind PR3 or human polyclonal antibodies against wild-type CD177. Carriers of the c.1291G>A allele are supposed to be phenotyped as CD177-negative, but the protein is present in soluble form. The presence of CD177 c.1291A leads to the production of an unstable CD177 protein and an apparent "CD177-null" phenotype.
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Affiliation(s)
- Annalena Traum
- Institute for Clinical Immunology, Transfusion Medicine and Haemostasis, Medical Faculty, Justus-Liebig-University, 35390 Giessen, Germany
| | - Stefanie Jehle
- Institute for Clinical Immunology, Transfusion Medicine and Haemostasis, Medical Faculty, Justus-Liebig-University, 35390 Giessen, Germany
| | - Yannick Waxmann
- Institute for Clinical Immunology, Transfusion Medicine and Haemostasis, Medical Faculty, Justus-Liebig-University, 35390 Giessen, Germany
| | - Anne-Sophie Litmeyer
- Institute for Clinical Immunology, Transfusion Medicine and Haemostasis, Medical Faculty, Justus-Liebig-University, 35390 Giessen, Germany
| | - Heike Berghöfer
- Institute for Clinical Immunology, Transfusion Medicine and Haemostasis, Medical Faculty, Justus-Liebig-University, 35390 Giessen, Germany
| | - Gregor Bein
- Institute for Clinical Immunology, Transfusion Medicine and Haemostasis, Medical Faculty, Justus-Liebig-University, 35390 Giessen, Germany
| | - Reinhard Dammann
- Institute for Genetics, Faculty of Biology and Chemistry, Justus-Liebig-University, 35390 Giessen, Germany
| | - Alexander Perniss
- Institute for Anatomy and Cell Biology, German Center for Lung Research, Excellence Cluster Cardio-Pulmonary Institute (CPI), Justus-Liebig-University, 35392 Giessen, Germany
| | - Monika Burg-Roderfeld
- Faculty of Biology and Chemistry, Fresenius University of Applied Sciences, 65510 Idstein, Germany
| | - Ulrich J Sachs
- Institute for Clinical Immunology, Transfusion Medicine and Haemostasis, Medical Faculty, Justus-Liebig-University, 35390 Giessen, Germany
- Department of Thrombosis and Haemostasis, Giessen University Hospital, 35390 Giessen, Germany
| | - Behnaz Bayat
- Institute for Clinical Immunology, Transfusion Medicine and Haemostasis, Medical Faculty, Justus-Liebig-University, 35390 Giessen, Germany
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3
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Curtis BR, Jehle S, Bein G, Bayat B, Sachs UJ. Significant neutropenia induced by metamizole dependent neutrophil antibodies. Blood Transfus 2024; 22:86-87. [PMID: 37458721 PMCID: PMC10812888 DOI: 10.2450/bloodtransfus.428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 04/21/2023] [Indexed: 01/27/2024]
Affiliation(s)
- Brian R. Curtis
- Platelet and Neutrophil Immunology Laboratory, Blood Research Institute, Versiti BloodCenter of Wisconsin, Milwaukee, WI, United States of America
| | - Stefanie Jehle
- Institute for Clinical Immunology, Transfusion Medicine, and Hemostasis, Justus-Liebig-University, Giessen, Germany
| | - Gregor Bein
- Institute for Clinical Immunology, Transfusion Medicine, and Hemostasis, Justus-Liebig-University, Giessen, Germany
| | - Behnaz Bayat
- Institute for Clinical Immunology, Transfusion Medicine, and Hemostasis, Justus-Liebig-University, Giessen, Germany
| | - Ulrich J. Sachs
- Institute for Clinical Immunology, Transfusion Medicine, and Hemostasis, Justus-Liebig-University, Giessen, Germany
- Department of Thrombosis and Hemostasis, Giessen University Hospital, Giessen, Germany
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4
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Ishimoto Y, Taniguchi K, Bayat B, Tobita R, Miyazaki T, Onodera R, Kurita E, Kobayashi M, Muroi K, Tsuno NH. Production of recombinant humanized monoclonal anti-human neutrophil antigen (HNA) antibodies with potential applicability as standard antibodies. Transfusion 2023; 63:2282-2288. [PMID: 37952222 DOI: 10.1111/trf.17590] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/07/2023] [Accepted: 10/07/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND Antibodies against human neutrophil antigen (HNA) are involved in the pathogenesis of neonatal alloimmune neutropenia, autoimmune neutropenia, and transfusion-related acute lung injury. The present methods for anti-HNA antibody identification strongly depend on the presence of standard antisera with known allo/isospecificities. Here, we aimed to produce recombinant humanized antibodies to HNA from available mouse monoclonal antibodies (MoAbs). STUDY DESIGN AND METHODS RNAs were extracted from available hybridoma cells producing mouse anti-HNA antibodies recognizing HNA-1a (TAG-1), -1b (TAG-2), -2 (TAG-4), and FcγRIIIb, and the cDNA was synthesized. Recombinant fragments consisting of the variable regions of the H and L chains of the mouse MoAb ligated to the constant region of human IgG were incorporated into an expression vector and transfected into CHO cells. Antibody specificity of the selected humanized monoclonal antibodies was confirmed, and tested by the participants of the ISBT Granulocyte Immunobiology Working Party (GIWP) workshop 2020. RESULTS GIFT results confirmed the specific reactivity of TAGH-1 to -4, except for a cross-reactivity of TAGH-2 with HNA-1a/a neutrophils, only in flow-cytometry. MAIGA results showed clear specificity of all humanized antibodies, but the selection of the appropriate capture monoclonal antibody was essential for the test. The results of the ISBT GIWP showed high concordance among the labs. CONCLUSIONS These are the first humanized monoclonal antibodies to HNA-1 and HNA-2 antigens produced and they will be important standard reagents for laboratories testing for neutrophil antibodies. We plan to have these humanized MoAbs available through WHO.
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Affiliation(s)
- Yuko Ishimoto
- Kanto-Koshinetsu Block Blood Center, Japanese Red Cross Society, Tokyo, Japan
| | - Kikuyo Taniguchi
- Department of Clinical Laboratory Science, Sanyo Women's College, Hiroshima, Japan
| | - Behnaz Bayat
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University Giessen, Giessen, Germany
| | - Ryutaro Tobita
- Kanto-Koshinetsu Block Blood Center, Japanese Red Cross Society, Tokyo, Japan
| | - Toru Miyazaki
- Research and Development Department, Japanese Red Cross Central Blood Institute, Tokyo, Japan
| | - Rie Onodera
- Department of Clinical Laboratory Science, Sanyo Women's College, Hiroshima, Japan
| | - Emi Kurita
- Division of Transfusion Medicine, Hiroshima University, Hiroshima, Japan
| | - Masao Kobayashi
- Japanese Red Cross Society Chushikoku Block Blood Center, Hiroshima, Japan
| | - Kazuo Muroi
- Kanto-Koshinetsu Block Blood Center, Japanese Red Cross Society, Tokyo, Japan
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5
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Ames P, Baal N, Speckmann M, Michel G, Ratke J, Klesser C, Cooper N, Takahashi D, Bayat B, Bein G, Santoso S. In vitro analysis of anti-HPA-1a dependent platelet phagocytosis and its inhibition using a new whole blood phagocytosis assay (WHOPPA). Front Immunol 2023; 14:1283704. [PMID: 38077345 PMCID: PMC10702767 DOI: 10.3389/fimmu.2023.1283704] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 10/30/2023] [Indexed: 12/18/2023] Open
Abstract
Fetal and neonatal alloimmune thrombocytopenia (FNAIT) is a serious bleeding condition mostly caused by the reaction between maternal anti-HPA-1a antibodies and fetal platelets. This reaction leads to Fc-dependent platelet phagocytosis. Although several serological methods have been developed to identify maternal antibodies, a reliable laboratory parameter as a prognostic tool for FNAIT severity is still lacking. In this study, we developed whole blood platelet phagocytosis assay (WHOPPA), a flow cytometry-based phagocytosis assay that uses a pH-sensitive fluorescent dye (pHrodo-SE) to analyze anti-HPA-1a-dependent platelet phagocytosis in whole blood. WHOPPA revealed a high phagocytosis rate for the anti-HPA-1a opsonized platelets by monocytes but not by neutrophils. Analysis of different monocyte populations showed that all monocyte subsets, including classical (CD14++CD16-), intermediate (CD14++CD16+), and nonclassical (CD14+CD16++) monocytes, were able to engulf opsonized platelets. A unique monocyte subset, termed shifted monocytes (CD14+CD16-), showed the highest phagocytosis rate and was detected after platelet engulfment. FcγR inhibition tests revealed that except for FcγRIIa, FcγRI and FcγRIII on monocytes were responsible for the phagocytosis of anti-HPA-1a opsonized platelets. Analysis of anti-HPA-1a antibodies from FNAIT cases (n = 7) showed the phagocytosis of HPA-1aa but not of HPA-1bb platelets by monocytes. The phagocytosis rate was highly correlated with bound antibodies measured by flow cytometry (p < 0001; r = 0.9214) and MAIPA assay (p < 0.001; r = 0.7692). The phagocytosis rates were equal for type I and II anti-HPA-1a antibodies recognizing the plexin-semaphoring-integrin (PSI) domain and PSI/epidermal growth factor 1 domain of β3 integrin, respectively. By contrast, type III anti-HPA-1a antibodies reacting with αvβ3 integrin did not induce platelet phagocytosis. Furthermore, effector-silenced mAbs against HPA-1a inhibited the phagocytosis of anti-HPA-1a opsonized platelets. In conclusion, WHOPPA is a reliable in vitro platelet phagocytosis assay that mimics the phagocytosis of anti-HPA-1a opsonized platelets in whole blood. This assay allows to prove platelet phagocytosis ex vivo and evaluate the inhibitory capacity of different inhibitors as therapeutically strategies for the prevention of fetal thrombocytopenia in FNAIT in the future.
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Affiliation(s)
- Paula Ames
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
| | - Nelli Baal
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
| | - Martin Speckmann
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
- Flow Cytometry Core Facility, Justus Liebig University, Giessen, Germany
| | - Gabriela Michel
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
| | - Judith Ratke
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
| | - Christina Klesser
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
| | - Nina Cooper
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
| | | | - Behnaz Bayat
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
| | - Gregor Bein
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
| | - Sentot Santoso
- Institute for Clinical Immunology, Transfusion Medicine and Hemostasis, Justus Liebig University, Giessen, Germany
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6
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Böhm D, Wienzek-Lischka S, Cooper N, Berghöfer H, Müller K, Bayat B, Bein G, Sachs UJ. Fetal and neonatal alloimmune thrombocytopenia: No evidence of systemic inflammation as a modulator of disease severity. Could placental inflammation be key? Br J Haematol 2023; 203:304-310. [PMID: 37571926 DOI: 10.1111/bjh.19009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 07/19/2023] [Accepted: 07/19/2023] [Indexed: 08/13/2023]
Abstract
In fetal/neonatal alloimmune thrombocytopenia (FNAIT), maternal alloantibodies against paternal human platelet antigens (HPA) cross the placenta and lead to platelet destruction. The extent of thrombocytopenia varies among neonates, and inflammation may constitute an important trigger. A set of stable inflammatory markers was measured in serum samples from neonates with low platelet counts, of which n = 50 were diagnosed with FNAIT due to anti-HPA-1a antibodies and n = 50 were thrombocytopenic without detectable maternal HPA antibodies. Concentrations of C-reactive protein, soluble CD14, procalcitonin, and sFlt-1 did not differ between the two cohorts. There was no correlation between C-reactive protein or soluble CD14 and the platelet count, but a negative correlation between procalcitonin concentrations and the neonatal platelet count in both cohorts. sFlt-1 concentration and the platelet count were correlated in FNAIT cases exclusively. None of the inflammatory markers was statistically different between cases with and without intracranial haemorrhage. We were unable to identify systemic inflammation as a relevant factor for thrombocytopenia in FNAIT. The antiangiogenic enzyme sFlt-1, released by the placenta, did correlate with the platelet count in FNAIT cases. Our findings may give rise to the hypothesis that placental inflammation rather than systemic inflammation modulates disease severity in FNAIT.
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Affiliation(s)
- David Böhm
- Institute for Clinical Immunology, Transfusion Medicine, and Haemostasis, Justus Liebig University, Giessen, Germany
| | - Sandra Wienzek-Lischka
- Institute for Clinical Immunology, Transfusion Medicine, and Haemostasis, Justus Liebig University, Giessen, Germany
- German Center for Fetomaternal Incompatibility (DZFI), University Hospital Giessen and Marburg, Giessen, Germany
| | - Nina Cooper
- Institute for Clinical Immunology, Transfusion Medicine, and Haemostasis, Justus Liebig University, Giessen, Germany
- German Center for Fetomaternal Incompatibility (DZFI), University Hospital Giessen and Marburg, Giessen, Germany
| | - Heike Berghöfer
- Institute for Clinical Immunology, Transfusion Medicine, and Haemostasis, Justus Liebig University, Giessen, Germany
| | - Katja Müller
- Institute for Clinical Immunology, Transfusion Medicine, and Haemostasis, Justus Liebig University, Giessen, Germany
| | - Behnaz Bayat
- Institute for Clinical Immunology, Transfusion Medicine, and Haemostasis, Justus Liebig University, Giessen, Germany
| | - Gregor Bein
- Institute for Clinical Immunology, Transfusion Medicine, and Haemostasis, Justus Liebig University, Giessen, Germany
- German Center for Fetomaternal Incompatibility (DZFI), University Hospital Giessen and Marburg, Giessen, Germany
| | - Ulrich J Sachs
- Institute for Clinical Immunology, Transfusion Medicine, and Haemostasis, Justus Liebig University, Giessen, Germany
- German Center for Fetomaternal Incompatibility (DZFI), University Hospital Giessen and Marburg, Giessen, Germany
- Department of Thrombosis and Haemostasis, University Hospital Giessen and Marburg, Giessen, Germany
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7
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Bayat B, Lowack J, Audrain M, Croisille L, Curtis B, Dangerfield R, Esmaeili B, Grabowski C, Keller M, Kim H, Kroll H, Kvanka MM, Kwok J, Moritz E, Nathalang O, Nelson D, Nielsen KR, Pahn G, Poles A, Porcelijn L, Sachs UJ, Schönbacher M, Körmöczi GF, Kupatawintu P, Takahashi D, Uhrynowska M, Flesch B, Fung YL. World human neutrophil antigens investigation survey. Vox Sang 2023; 118:763-774. [PMID: 37608544 DOI: 10.1111/vox.13500] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/04/2023] [Accepted: 07/10/2023] [Indexed: 08/24/2023]
Abstract
BACKGROUND AND OBJECTIVES Human neutrophil antigens (HNAs) are categorized into five systems: HNA-1 to HNA-5. Given the importance of neutrophils in immunity, we sought to create awareness of the role of HNA diagnostic services in managing immune neutropenia and transfusion-related acute lung injury. To provide health communities all around the world with access to these services, we conducted a survey to create a directory of these HNA diagnostic services. MATERIALS AND METHODS An Excel table-based survey was created to capture information on the laboratory's location and was emailed to 55 individuals with known or possible HNA investigation activity. The collected data were then summarized and analysed. RESULTS Of contacted laboratories, the surveys were returned from 23 (38.2%) laboratories; 17 have already established HNA diagnostic (of them 12 were regular participants of the International Granulocyte Immunobiology Workshop [ISBT-IGIW]), 4 laboratories were in the process of establishing their HNA investigation and the remaining 2 responder laboratories, did not conduct HNA investigations. In established laboratories, investigation for autoimmune neutropenia (infancies and adults) was the most frequently requested, and antibodies against HNA-1a and HNA-1b were the most commonly detected. CONCLUSION The directory of survey respondents provides a resource for health professionals wanting to access HNA diagnostic services. The present study offers a comprehensive picture of HNA diagnostics (typing and serology), identifying weak points and areas for improvement for the first time. Identifying more laboratories involved in HNA diagnostics with limited access to international societies in the field will globally improve HNA diagnostics.
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Affiliation(s)
- Behnaz Bayat
- Institute for Clinical Immunology, Transfusion Medicine and Haemostasis, Justus-Liebig-University, Gießen, Germany
| | - Jonas Lowack
- Institute for Clinical Immunology, Transfusion Medicine and Haemostasis, Justus-Liebig-University, Gießen, Germany
| | - Marie Audrain
- Service d'Immunologie, Laboratoire de Biologie, Nantes, France
| | | | - Brian Curtis
- Platelet & Neutrophil Immunology Lab, Versiti, Milwaukee, Wisconsin, USA
| | - Rebecca Dangerfield
- American Red Cross Neutrophil Immunology Laboratory, St Paul, Minnesota, USA
| | - Behnaz Esmaeili
- Department of Basic Medical Sciences, Khoy University of Medical Sciences, Khoy, Iran
- Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Claudia Grabowski
- Institut für Transfusionsmedizin Dessau, DRK-Blutspendedienst NSTOB, Dessau, Germany
| | - Margaret Keller
- American Red Cross Neutrophil Immunology Laboratory, St Paul, Minnesota, USA
| | - Hyungsuk Kim
- Seoul National University Hospital, Seoul, South Korea
| | - Hartmut Kroll
- Institut für Transfusionsmedizin Dessau, DRK-Blutspendedienst NSTOB, Dessau, Germany
| | | | - Janette Kwok
- Division of Transplantation and Immunogenetic, Department of Pathology, Queen Mary Hospital, Pok Fu Lam, Hong Kong
| | - Elyse Moritz
- Clinical and Experimental Oncology, Escola Paulista de Medicinia, Universidade Federal de Sao Paulo, Sao Paulo, Brazil
| | - Oytip Nathalang
- Faculty of Allied Health Sciences, Thammasat University, Pathumtani, Thailand
| | - Derrick Nelson
- Specialized Laboratory Services, South African National Blood Service, Johannesburg, South Africa
| | | | - Gail Pahn
- Platelet & Granulocyte Reference Laboratory, Australian Red Cross Lifeblood, Brisbane, Australia
| | - Anthony Poles
- Department of Histocompatibility & Immunogenetics, NHS Blood & Transplant, Bristol, UK
| | - Leendert Porcelijn
- Platelet/Leucocyte Serology Laboratory, Sanquin Diagnostic Services, Amsterdam, The Netherlands
| | - Ulrich J Sachs
- Institute for Clinical Immunology, Transfusion Medicine and Haemostasis, Justus-Liebig-University, Gießen, Germany
| | - Marlies Schönbacher
- Department of Transfusion Medicine and Cell Therapy, Medical University of Vienna, Vienna, Austria
| | - Günther F Körmöczi
- Department of Transfusion Medicine and Cell Therapy, Medical University of Vienna, Vienna, Austria
| | | | | | | | - Brigitte Flesch
- Laboratory for Immunogenetics/HLA, DRK Blutspendedienst West, Bad Kreuznach, Germany
| | - Yoke-Lin Fung
- School of Health, University of the Sunshine Coast, Sunshine Coast, Queensland, Australia
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8
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Grabowski C, Reil A, Bux J, Bayat B, Sachs UJ. Anti-human neutrophil antigen-1d specificity is frequently observed in anti-human neutrophil antigen-1b alloantisera. Transfusion 2022; 62:2205-2211. [PMID: 36173690 DOI: 10.1111/trf.17118] [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] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 09/02/2022] [Accepted: 09/02/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Four amino acids are involved in epitope formation of human neutrophil antigens (HNA)-1 alleles, located at positions 36, 65, 78, and 82. HNA-1a and HNA-1b alloantibody epitopes were recently characterized. The HNA-1b allele also carries the HNA-1d epitope p.78A&p.82N. The current study aimed to identify compound antibody specificities in HNA-1b alloantisera, especially the presence of anti-HNA-1d. STUDY DESIGN AND METHODS For investigation of binding epitopes for HNA-1b alloantibodies, cells stably expressing different HNA-1 alleles were generated and tested against previously well-characterized HNA-1b antisera (n = 11) in an antigen capture assay. Sera with p.82N specificity or p.36S and p.82N specificity were additionally analyzed using adsorption and elution methods. RESULTS Three amino acids, p.36S, p.78A, and p.82N, are involved in epitope formation of HNA-1b. The following specificities were identified in 11 HNA-1b alloantisera: p.36S (6/11), p.82N (9/11), and p.78A&p.82N (8/11), of which p.36S was identified as a sole entity in 2/11, whereas 9/11 antisera contained a polyspecific mixture of anti-p.36S, p.82N (1/11), and anti-p.78A&p.82N in combination with anti p.82N (5/11) or compound specificities of anti-p.36S, p.82N, and p.78A&p82N (3/11). In seven of eight antisera with p.82N specificity, anti-p.78A&p.82N was detected. DISCUSSION Analysis of HNA-1b antisera indicates compound specificities for HNA-1b alloantibodies with a high variation between HNA-1b immunized individuals. Amino acids p.36S, p.82N, and p.78A&p.82N are necessary for HNA-1b epitope formation. The HNA-1d epitope is recognized by 73% (8/11) of HNA-1b immunized individuals.
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Affiliation(s)
- Claudia Grabowski
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany.,German Red Cross Blood Donation Service NSTOB, Dessau, Germany
| | - Angelika Reil
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | | | - Behnaz Bayat
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Ulrich J Sachs
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany.,Department of Thrombosis and Haemostasis, Giessen University Hospital, Giessen, Germany
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9
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Waxmann Y, Arians M, Bein G, Sachs UJ, Bayat B. A Trp11Arg Substitution in the β3 Signal Peptide Prevents Expression of αIIbβ3 in Patients with Glanzmann Thrombasthenia. Thromb Haemost 2022; 122:1951-1953. [PMID: 36122578 DOI: 10.1055/s-0042-1756450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Yannick Waxmann
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University, Giessen, Germany
| | - Miriam Arians
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University, Giessen, Germany
| | - Gregor Bein
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University, Giessen, Germany
| | - Ulrich J Sachs
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University, Giessen, Germany.,Department of Thrombosis and Haemostasis, Giessen University Hospital, Giessen, Germany
| | - Behnaz Bayat
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University, Giessen, Germany
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10
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Esmaeili B, Bayat B, Fazlollahi MR, Moradi L, Kalantari A, Nourbakhsh SMK, Pourpak Z. Identification of Antibodies against Neutrophil Surface Antigens in Two Iranian Patients with Autoimmune Neutropenia. Iran J Allergy Asthma Immunol 2021; 20:771-777. [PMID: 34920660 DOI: 10.18502/ijaai.v20i6.8029] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 07/27/2021] [Indexed: 06/14/2023]
Abstract
Autoimmune neutropenia is a type of immune-mediated neutropenia, caused by antibody-induced neutrophil destruction. Here we report two cases (3-year-old boy and 9-year-old girl) with suspected autoimmune neutropenia. The presence of neutrophil antibodies in sera of these patients was investigated using standard neutrophil antibody screening tests such as granulocyte immunofluorescence test (GIFT), granulocyte agglutination test (GAT), and lymphocyte immunofluorescence test (LIFT). A positive reactivity with two panel cells was found in GIFT. No reactivities with panel cells were observed in GAT and LIFT. To the best of our knowledge, this is the first report for detecting the neutrophil reactive antibodies using genotyped neutrophils in patients with autoimmune neutropenia in Iran. The final diagnosis of our patients was primary autoimmune neutropenia for the boy and autoimmune neutropenia associated with familial Mediterranean fever for the girl.
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Affiliation(s)
- Behnaz Esmaeili
- Immunology, Asthma and Allergy Research Institute (IAARI), Tehran University of Medical Sciences, Tehran, Iran.
| | - Behnaz Bayat
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany.
| | - Mohamad Reza Fazlollahi
- Immunology, Asthma and Allergy Research Institute (IAARI), Tehran University of Medical Sciences, Tehran, Iran.
| | - Leila Moradi
- Immunology, Asthma and Allergy Research Institute (IAARI), Tehran University of Medical Sciences, Tehran, Iran.
| | - Arash Kalantari
- Department of Pediatrics, Vali-e-Asr Hospital, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran.
| | - Seyed Mohammad Kazem Nourbakhsh
- Department of Pediatrics, Vali-e-Asr Hospital, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran.
| | - Zahra Pourpak
- Immunology, Asthma and Allergy Research Institute (IAARI), Tehran University of Medical Sciences, Tehran, Iran.
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11
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Seifpanahi MS, Bayat B, Ghorbani Gholiabad S, Rezayi M. Self-rated vocal complaints relationship to Vocal Tract Discomfort and Singers Voice Handicap Index in Iranian religious singers. Eur Arch Otorhinolaryngol 2021; 278:2411-2419. [PMID: 33837834 DOI: 10.1007/s00405-021-06741-5] [Citation(s) in RCA: 3] [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: 01/06/2021] [Accepted: 03/05/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE The religious singing is a popular group of professional voice users in Iran which is performed in a sadness form to persuade the audiences to cry and think to holy persons. This style has its own unique vocal demands and abuses. Therefore, the present study, for the first time, aimed to investigate the prevalence of self-reported vocal complaints, vocal discomfort symptoms, and its effects on the vocal-related life of the Iranian religious singers. METHODS In a cross-sectional study, 62 religious singers (28 women, 34 men) completed Singers Voice Handicap Index (SVHI), Vocal Tract Discomfort (VTD), and also a non-standard self-rated vocal complaint question. Spearman correlation test was applied to analyze correlations. Furthermore, 39 non-singers (18 women, 21 men) as a control group participated in this study. RESULTS The religious singer's mean score of the SVHI test was 34.84 (SD = 24.89). According to the self-rated vocal complaint question, almost 80% of the participants reported mild to the severe vocal complaints that was significantly higher than control group which was about 10%. The self-rated complaints indicated a significant positive correlation with the SVHI and the VTD reported by singers (p ≤ 0.001). The mean scores of the VTD symptoms in singers were significantly greater than control group. There was also a significant positive correlation between the two VTD and SVHI tests (p ≤ 0.001). CONCLUSION Religious singers are at a great risk of developing voice problems. Therefore, their vocal demands and requirements need to be followed precisely. The SVHI and VTD tests should also be considered as two efficient tools for religious singers.
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Affiliation(s)
- Mohammad-Sadegh Seifpanahi
- Department of Speech and Language Pathology, Autism spectrum disorders Research center, Hamadan University of Medical Sciences, Mardom Park Street, P.O.Box: 6517838677, Hamadan, Iran.
| | - Behnaz Bayat
- Department of Speech and Language Pathology, Ava Rehabilitation Center, Karaj, Iran
| | | | - Mohammad Rezayi
- Department of Speech and Language Pathology, Autism spectrum disorders Research center, Hamadan University of Medical Sciences, Mardom Park Street, P.O.Box: 6517838677, Hamadan, Iran
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12
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Traum A, Hofmann C, Haas S, Schmidt S, Bein G, Sachs UJ, Bayat B. Characterization of CD177-reactive iso- and auto-antibodies. Transfusion 2021; 61:1916-1922. [PMID: 33734454 DOI: 10.1111/trf.16359] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 12/31/2022]
Abstract
BACKGROUND CD177 is a surface protein on neutrophils and a main mediator for the surface expression of proteinase 3 (PR3). Its functions are largely unknown. At least three types of antibodies have been described to target CD177: isoantibodies, which are formed in CD177-null individuals as a result of an immune reaction following transfusion or pregnancy; autoantibodies present in sera from patients with autoimmune neutropenia; and antineutrophil cytoplasmic antibodies in sera from patients with glomerulonephritis with polyangiitis. In this study, we aimed to compare the binding characteristics of auto- and iso-antibodies to optimize their detectability in the neutrophil serology laboratory. STUDY DESIGN AND METHODS The reactivity of iso- and auto-antibodies against CD177 was studied using granulocytes, "native" CD177/PR3 complex, and recombinant CD177 or PR3. RESULTS All iso- and auto-antibodies were reactive with CD177/PR3 when immobilized with monoclonal antibody (moab) 7D8. Seventy-five percent of autoantibodies, but none of the isoantibodies, did not react with CD177/PR3 immobilized with moab MEM166. The majority of autoantibodies did not react with recombinant CD177, whereas most isoantibodies tested positive. DISCUSSION Our results suggest that iso- and auto-antibodies against CD177 target different epitopes. Isoantibodies mainly target CD177 alone, while the majority of autoantibodies target a native epitope present on the neutrophil surface, but absent from recombinant CD177 which lacks PR3. Moab MEM166 binds to the native epitope and hinders the binding of CD177 autoantibodies. The results may help to design diagnostic strategies, especially for the identification of autoantibodies.
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Affiliation(s)
- Annalena Traum
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Christine Hofmann
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Sabine Haas
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Silke Schmidt
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Gregor Bein
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Ulrich J Sachs
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Behnaz Bayat
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
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13
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Fiore M, Bayat B, Phuangtham R, Blouin L, Huguenin Y, Bein G, Santoso S. Immunization against α IIb β 3 and α v β 3 in Glanzmann thrombasthenia patients carrying the French Gypsy mutation. J Thromb Haemost 2021; 19:255-261. [PMID: 33090654 DOI: 10.1111/jth.15117] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 09/24/2020] [Accepted: 09/25/2020] [Indexed: 01/22/2023]
Abstract
Essentials The c.1544+1G>A mutation was identified in Gypsy Glanzmann thrombasthenia (GT) patients. Gypsy GT patients express normal αv β3 carrying HPA-1b epitopes. To demonstrate HPA-1a alloimmunization by modified antigen capture assays. Gypsy GT patients could develop anti-HPA-1a alloantibodies against β3 and αv β3 . ABSTRACT: Background Glanzmann thrombasthenia (GT) is a rare bleeding disorder caused by the absence or the dysfunction of the platelet αIIb β3 integrin. A founder mutation in the ITGA2B gene was previously identified in French Gypsy patients. Interestingly, this mutation was strongly linked to the human platelet antigen-1b (HPA-1b). The HPA-1bb Gypsy patients are at risk of isoimmunization against αIIb β3 , as this complex is not expressed at their platelet surface. Tentatively, they would, however, not have an increased risk of developing anti-HPA-1a alloantibodies by exposure of αIIb β3 on platelets from random platelet transfusions. However, the β3 chain can also associate with the αv subunit expressed at the platelet surface. Because Gypsy GT patients express normal αv β3 carrying HPA-1b epitopes, these patients might develop anti-HPA-1a alloantibodies reacting with αv β3 and/or β3 . Objectives/Patients/Methods To demonstrate this hypothesis, sera from HPA-1bb (n = 5) and HPA-1ab (n = 1) Gypsy GT patients were investigated by modified antigen capture assay using platelets or stable transfected cells. Furthermore, stable transfected cells expressing either αIIb β3 or αv β3 together with soluble monomeric chimeric β3 (as absorbent) were used to differentiate anti-β3 and anti-αv β3 reactivity. Results Only HPA-1bb patients developed alloantibodies reacting with HPA-1a cells. Further analysis showed that HPA-1bb patients developed anti-HPA-1a alloantibodies reacting with β3 and/or αv β3 . Conclusion In this study, we found that HPA-1bb patients who failed to express αIIb β3 on the platelet surface can develop alloantibodies against HPA-1a reacting with β3 as well as αv β3 . This is of particular importance as anti-HPA-1a alloantibodies might cause fetal neonatal alloimmune thrombocytopenia and/or platelet transfusion refractoriness.
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Affiliation(s)
- Mathieu Fiore
- Laboratoire d'hématologie, Centre de Référence des Pathologies Plaquettaires Constitutionnelles, CHU de Bordeaux, Inserm U1034 - Biology of Cardiovascular Diseases, Pessac, France
| | - Behnaz Bayat
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University, Giessen, Germany
| | - Roongaroon Phuangtham
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University, Giessen, Germany
- Biomedical Sciences Program, Graduate School, Khon Kaen University, Khon Kaen, Thailand
| | - Laura Blouin
- Service d'Immunologie et Immunogénétique, Centre Hospitalier Universitaire de Bordeaux, Hôpital Pellegrin, Établissement Français du Sang, Bordeaux, France
| | - Yoann Huguenin
- Centre de Ressources et de Compétence des Maladies Hémorragiques Constitutionnelles, Hôpital Pellegrin, CHU de Bordeaux, Bordeaux, France
| | - Gregor Bein
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University, Giessen, Germany
| | - Sentot Santoso
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University, Giessen, Germany
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14
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Norris PAA, Segel GB, Burack WR, Sachs UJ, Lissenberg-Thunnissen SN, Vidarsson G, Bayat B, Cserti-Gazdewich CM, Callum J, Lin Y, Branch D, Kapur R, Semple JW, Lazarus AH. FcγRI and FcγRIII on splenic macrophages mediate phagocytosis of anti-glycoprotein IIb/IIIa autoantibody-opsonized platelets in immune thrombocytopenia. Haematologica 2021; 106:250-254. [PMID: 32107327 PMCID: PMC7776240 DOI: 10.3324/haematol.2020.248385] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Peter A A Norris
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON
| | | | | | | | | | - Gestur Vidarsson
- Department of Experimental Immunohematology, Sanquin Research and Landsteiner Laboratory, Amsterdam
| | | | | | | | - Yulia Lin
- Sunnybrook Health Sciences Centre, Toronto, ON
| | - Donald Branch
- Centre for Innovation, Canadian Blood Services, Ottawa, ON
| | - Rick Kapur
- Department of Experimental Immunohematology, Sanquin Research and Landsteiner Laboratory, Amsterdam
| | - John W Semple
- Division of Hematology and Transfusion Medicine, Lund University, Lund, Sweden
| | - Alan H Lazarus
- Centre for Innovation, Canadian Blood Services, Ottawa, ON
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15
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Flesch BK, Reil A, Nogués N, Canals C, Bugert P, Schulze TJ, Huiskes E, Porcelijn L, Höglund P, Ratcliffe P, Schönbacher M, Kerchrom H, Kellershohn J, Bayat B. Multicenter Study on Differential Human Neutrophil Antigen 2 Expression and Underlying Molecular Mechanisms. Transfus Med Hemother 2020; 47:385-395. [PMID: 33173457 DOI: 10.1159/000505523] [Citation(s) in RCA: 4] [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: 08/28/2019] [Accepted: 12/18/2019] [Indexed: 12/29/2022] Open
Abstract
Background The human neutrophil antigen 2 (HNA-2), which is expressed on CD177, is undetectable in 3-5% of the normal population. Exposure of these HNA-2<sub>null</sub> individuals to HNA-2-positive cells can cause immunization and pro-duction of HNA-2 antibodies, which can induce immune neutropenia and transfusion-related acute lung injury. In HNA-2-positive individuals, neutrophils are divided into a CD177<sup>pos.</sup> and a CD177<sup>neg.</sup> subpopulation. The molecular background of HNA-2 deficiency and the bimodal expression pattern, however, are not completely decoded. Study Design An international collaboration was conducted on the genetic analysis of HNA-2-phenotyped blood samples, including HNA-2-deficient individuals, mothers, and the respective children with neonatal immune neutropenia and regular blood donors. Results From a total of 54 HNA-2<sub>null</sub> individuals, 43 were homozygous for the CD177 *787A>T substitution. Six carried the CD177 *c.1291G>A single nucleotide polymorphism. All HNA-2-positive samples with >40% CD177<sup>pos.</sup> neutrophils carried the *787A wild-type allele, whereas a lower rate of CD177<sup>pos.</sup> neutrophils was preferentially associated with *c.787AT heterozygosity. Interestingly, only the *c.787A allele sequence was detected in complementary DNA (cDNA) sequence analysis carried out on all *c.787AT heterozygous individuals. However, cDNA analysis after sorting of CD177<sup>pos.</sup> and CD177<sup>neg.</sup> neutrophil subsets from HNA-2-positive individuals showed identical sequences, which makes regulatory elements within the promoter unlikely to affect CD177 gene transcription in different CD177 neutrophil subsets. Conclusion This comprehensive study clearly demonstrates the impact of single nucleotide polymorphisms on the expression of HNA-2 on the neutrophil surface but challenges the hypothesis of regulatory epigenetic effects being implicated in the bimodal CD177 expression pattern.
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Affiliation(s)
- Brigitte K Flesch
- German Red Cross Blood Service Rhineland-Palatinate and Saarland, Bad Kreuznach, Germany.,German Red Cross Blood Service West, Hagen, Germany
| | | | - Núria Nogués
- Immunohematology Laboratory, Blood and Tissue Bank, Barcelona, Spain
| | - Carme Canals
- Immunohematology Laboratory, Blood and Tissue Bank, Barcelona, Spain
| | - Peter Bugert
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, German Red Cross Blood Service of Baden-Württemberg, Hessen gGmbH, Mannheim, Germany
| | - Torsten J Schulze
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, German Red Cross Blood Service of Baden-Württemberg, Hessen gGmbH, Mannheim, Germany.,Institute Springe, German Red Cross Blood Service NSTOB, Springe, Germany
| | - Elly Huiskes
- Department of Immunohematology Diagnostics, Sanquin, Amsterdam, The Netherlands
| | - Leendert Porcelijn
- Department of Immunohematology Diagnostics, Sanquin, Amsterdam, The Netherlands
| | - Petter Höglund
- Center for Hematology and Regenerative Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Paul Ratcliffe
- Center for Hematology and Regenerative Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Marlies Schönbacher
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Vienna, Vienna, Austria
| | - Hans Kerchrom
- Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Josina Kellershohn
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Behnaz Bayat
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
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16
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Holzwarth ST, Bayat B, Zhu J, Phuangtham R, Fischer L, Boeckelmann D, Röder L, Berghöfer H, Schmidt S, Bein G, Santoso S. Naturally occurring point mutation Cys460Trp located in the I-EGF1 domain of integrin β3 alters the binding of some anti-HPA-1a antibodies. Transfusion 2020; 60:2097-2107. [PMID: 32770549 DOI: 10.1111/trf.15960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/29/2020] [Accepted: 05/29/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND Fetal and neonatal alloimmune thrombocytopenia (FNAIT) is caused by the destruction of platelets in the fetus or newborn by maternal platelet alloantibodies, mostly against human platelet antigen (HPA)-1a. Recent studies indicate that two anti-HPA subtypes exist: Type I reacts with epitopes residing on the plexin-semaphorin-integrin (PSI) and type II with plexin-semaphorin-integrin/integrin epidermal growth factor 1 (I-EGF1) domains of the β3 integrin. Here, we evaluated whether a Cys460Trp mutation in the I-EGF1 domain found in a patient with Glanzmann thrombasthenia can alter the binding of anti-HPA-1a. METHODS Stable HEK293 cell lines expressing wild-type and mutant αIIbβ3 and αvβ3 were generated to prove the reactivity of different antibodies against HPA-1a. RESULTS Flow cytometry analysis of wild-type (Cys460) and mutant (Trp460) expressed on HEK293 cells showed equal surface expression of αIIbβ3 and αvβ3. When tested with mutant αIIbβ3 cells, reduced binding was observed in Type II but not in Type I anti-HPA-1a. These results could be confirmed with platelets carrying Cys460Trp mutation. Interestingly, reduced binding of Type I antibodies was detected with mutant αvβ3 cells. Both antibody types were found in maternal sera from FNAIT cases by an antigen-capture assay with use of HEK293 transfected cells. CONCLUSIONS These observations confirm the existence of Type I and Type II anti-HPA-1a. Furthermore, this study underlines different immunogenicity of HPA-1a antigen(s) residing on either αIIbβ3 or αvβ3. Further analysis of FNAIT cases from mothers having a fetus with and without intracranial bleedings with use of such an approach may highlight the functional relevance of different anti-HPA-1a subtypes.
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Affiliation(s)
- Sarah Theresa Holzwarth
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University Giessen, Giessen, Germany
| | - Behnaz Bayat
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University Giessen, Giessen, Germany
| | - Jieqing Zhu
- Blood Research Institute, Milwaukee, Wisconsin, USA
| | - Roongaroon Phuangtham
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University Giessen, Giessen, Germany.,Department of Transfusion Medicine and Clinical Microbiology, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Lars Fischer
- Department of Children Oncology, Haematology and Haemostaseology, University Leipzig, Leipzig, Germany
| | - Doris Boeckelmann
- Department of Hemostaseology, Division of Pediatric Hematology and Oncology, Faculty of Medicine, Medical Center, University of Freiburg, Freiburg, Germany
| | - Lida Röder
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University Giessen, Giessen, Germany
| | - Heike Berghöfer
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University Giessen, Giessen, Germany
| | - Silke Schmidt
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University Giessen, Giessen, Germany
| | - Gregor Bein
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University Giessen, Giessen, Germany
| | - Sentot Santoso
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University Giessen, Giessen, Germany
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17
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Sachs UJ, Radke C, Bein G, Grabowski C, Simtong P, Bux J, Bayat B, Reil A. Primary structure of human neutrophil antigens 1a and 1b. Transfusion 2020; 60:815-821. [PMID: 32072650 DOI: 10.1111/trf.15707] [Citation(s) in RCA: 3] [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] [Received: 09/20/2019] [Revised: 12/16/2019] [Accepted: 01/20/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Neutrophil specific Fcγ receptor IIIb (CD16b) is a low-affinity IgG receptor. Its polymorphic variants are associated with human neutrophil antigens (HNA). HNA-1a and HNA-1b differ in four amino acids. Immunization can lead to the production of alloantibodies. The exact contribution of four amino acid exchanges for the formation of HNA-1a, -1b epitopes is currently unknown. STUDY DESIGN AND METHODS Permutation of each polymorphic amino acid from wild-type CD16b cDNA constructs was performed and expressed on HEK293 cells. All 16 receptor variants were produced and tested against 19 well-characterized HNA antisera in an antigen capture assay. RESULTS Analyzing the reaction pattern revealed that anti-HNA-1a antibodies can bind whenever asparagine (N) is present in position 65, regardless of the three other positions (CD16b *N**). Anti-HNA-1b antibodies can bind when serine (S) is present in position 36 (CD16b S***), when N is present in position 82 (CD16b **N*), or both (CD16b S*N*). CD16b variants with N65 and S36 and/or N82 (such as CD16b SNN*) bind both, anti-HNA-1a and anti-HNA-1b alloantibodies. If these specific amino acids are missing (as in CD16b RSD*), no antibodies will bind. CONCLUSION Whereas the primary structure of HNA-1a and HNA-1b usually differs in four amino acids, epitope composition is not "antithetical". N65 alone determines the presence of HNA-1a, and S36 and/or N82 determine the presence of HNA-1b. Amino acid 106 does not participate in epitope formation. Our findings are of specific relevance when a HNA-1 phenotype is predicted from a genotype.
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Affiliation(s)
- Ulrich J Sachs
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Clemens Radke
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Gregor Bein
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Claudia Grabowski
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Piyapong Simtong
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany.,Centre for Research and Development, Medical Diagnostic Laboratories, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, Thailand
| | | | - Behnaz Bayat
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
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18
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Sachs UJ, Wienzek‐Lischka S, Duong Y, Qiu D, Hinrichs W, Cooper N, Santoso S, Bayat B, Bein G. Maternal antibodies against paternal class I human leukocyte antigens are not associated with foetal and neonatal alloimmune thrombocytopenia. Br J Haematol 2020; 189:751-759. [DOI: 10.1111/bjh.16419] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 11/01/2019] [Indexed: 12/30/2022]
Affiliation(s)
- Ulrich J. Sachs
- Institute for Clinical Immunology and Transfusion Medicine Justus‐Liebig‐University Giessen Germany
- German Center for Fetomaternal Incompatibility Giessen Germany
| | - Sandra Wienzek‐Lischka
- Institute for Clinical Immunology and Transfusion Medicine Justus‐Liebig‐University Giessen Germany
- German Center for Fetomaternal Incompatibility Giessen Germany
| | - Yalin Duong
- Institute for Clinical Immunology and Transfusion Medicine Justus‐Liebig‐University Giessen Germany
| | - Dan Qiu
- Institute for Medical Informatics Justus‐Liebig‐University Giessen Germany
| | | | - Nina Cooper
- Institute for Clinical Immunology and Transfusion Medicine Justus‐Liebig‐University Giessen Germany
- German Center for Fetomaternal Incompatibility Giessen Germany
| | - Sentot Santoso
- Institute for Clinical Immunology and Transfusion Medicine Justus‐Liebig‐University Giessen Germany
| | - Behnaz Bayat
- Institute for Clinical Immunology and Transfusion Medicine Justus‐Liebig‐University Giessen Germany
| | - Gregor Bein
- Institute for Clinical Immunology and Transfusion Medicine Justus‐Liebig‐University Giessen Germany
- German Center for Fetomaternal Incompatibility Giessen Germany
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19
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Holzwarth ST, Strobel J, Cooper N, Leyh J, Bayat B, Bein G, Zingsem J, Sachs UJ. A point mutation c.473A > G of ITGB3 is responsible for the formation of the Wo a human platelet alloantigen. Transfusion 2019; 60:E5-E6. [PMID: 31859394 DOI: 10.1111/trf.15640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/30/2019] [Accepted: 11/01/2019] [Indexed: 11/27/2022]
Affiliation(s)
- Sarah T Holzwarth
- Institute for Clinical Immunology and Transfusion MedicineJustus Liebig University, Giessen, Germany
| | - Julian Strobel
- Department of Transfusion Medicine and Haemostaseology, Friedrich-Alexander-University, Erlangen, Germany
| | - Nina Cooper
- Institute for Clinical Immunology and Transfusion MedicineJustus Liebig University, Giessen, Germany.,German Center for Feto-Maternal Incompatibility (DZFI), University Hospital Giessen and Marburg, Giessen, Germany
| | - Jörg Leyh
- Children's Hospital, Friedrich-Alexander-University, Erlangen, Germany
| | - Behnaz Bayat
- Institute for Clinical Immunology and Transfusion MedicineJustus Liebig University, Giessen, Germany
| | - Gregor Bein
- Institute for Clinical Immunology and Transfusion MedicineJustus Liebig University, Giessen, Germany.,German Center for Feto-Maternal Incompatibility (DZFI), University Hospital Giessen and Marburg, Giessen, Germany
| | - Jürgen Zingsem
- Department of Transfusion Medicine and Haemostaseology, Friedrich-Alexander-University, Erlangen, Germany
| | - Ulrich J Sachs
- Institute for Clinical Immunology and Transfusion MedicineJustus Liebig University, Giessen, Germany.,German Center for Feto-Maternal Incompatibility (DZFI), University Hospital Giessen and Marburg, Giessen, Germany
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Bayat B, Traum A, Berghöfer H, Werth S, Zhu J, Bein G, Sachs UJ, Santoso S. Current Anti-HPA-1a Standard Antibodies React with the β3 Integrin Subunit but not with αIIbβ3 and αvβ3 Complexes. Thromb Haemost 2019; 119:1807-1815. [PMID: 31587244 DOI: 10.1055/s-0039-1696716] [Citation(s) in RCA: 3] [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: 12/17/2022]
Abstract
BACKGROUND Fetal/neonatal alloimmune thrombocytopenia (FNAIT) results from maternal alloantibodies (abs) reacting with fetal platelets expressing paternal human platelet antigens (HPAs), mostly HPA-1a. Anti-HPA-1a abs, are the most frequent cause of severe thrombocytopenia and intracranial hemorrhage (ICH). OBJECTIVES Titration of anti-HPA-1a in maternal serum using standard National Institute for Biological Standards and Control (NIBSC) 03/152 is one diagnostic approach to predict the severity of FNAIT. Recently, we found three anti-HPA-1a subtypes reacting with the β3 subunit independently or dependently from complexes with αIIb and αv. Endothelial cell-reactive anti-αvβ3 abs were found predominantly in cases with ICH. Our aim was to assess whether available standard material represents all anti-HPA-1a subtypes. MATERIALS AND METHODS In this study, anti-HPA-1a sera (NIBSC 03/152) and human monoclonal antibodies (moabs) against HPA-1a (moabs 26.4 and 813) were evaluated using transfected cell lines expressing αIIbβ3, αvβ3 or monomeric cβ3. RESULTS Flow cytometry analyses with well-characterized murine moabs recognizing αIIbβ3, αvβ3, or β3 alone demonstrated that AP3 reacts compound-independently, whereas compound-dependent moabs Gi5 and 23C6 reacted only with complexes. NIBSC 03/152, moabs 26.4, and 813 against HPA-1a reacted like AP3, same results were obtained with monomeric cβ3 in immunoblotting. Antigen capture assay targeting endothelial cells showed anti-HPA-1a reactivity disappearance after cβ3 beads adsorption. Furthermore, in contrast to anti-HPA-1a abs from ICH cases, none of NIBSC 03/152, 26.4, and 813 inhibited tube formation. CONCLUSION These results suggest that current anti-HPA-1a standard material contains only the anti-β3 subtype. The absence of anti-αvβ3 makes NIBSC 03/152 less suitable as standard to predict the severity of FNAIT.
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Affiliation(s)
- Behnaz Bayat
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University Giessen, Giessen, Germany
| | - Annalena Traum
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University Giessen, Giessen, Germany
| | - Heike Berghöfer
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University Giessen, Giessen, Germany
| | - Silke Werth
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University Giessen, Giessen, Germany
| | - Jieging Zhu
- Blood Research Institute, Milwaukee, Wisconsin, United States
| | - Gregor Bein
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University Giessen, Giessen, Germany
| | - Ulrich J Sachs
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University Giessen, Giessen, Germany.,Center for Transfusion Medicine and Hemotherapy, University Hospital Marburg, Marburg, Germany
| | - Sentot Santoso
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University Giessen, Giessen, Germany
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Vollenberg R, Jouni R, Norris PAA, Burg-Roderfeld M, Cooper N, Rummel MJ, Bein G, Marini I, Bayat B, Burack R, Lazarus AH, Bakchoul T, Sachs UJ. Glycoprotein V is a relevant immune target in patients with immune thrombocytopenia. Haematologica 2019; 104:1237-1243. [PMID: 30923095 PMCID: PMC6545841 DOI: 10.3324/haematol.2018.211086] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 03/20/2019] [Indexed: 11/16/2022] Open
Abstract
Platelet autoantibody-induced platelet clearance represents a major pathomechanism in immune thrombocytopenia (ITP). There is growing evidence for clinical differences between anti-glycoprotein IIb/IIIa and anti-glycoprotein Ib/IX mediated ITP. Glycoprotein V is a well characterized target antigen in Varicella-associated and drug-induced thrombocytopenia. We conducted a systematic study assessing the prevalence and functional capacity of autoantibodies against glycoprotein V. A total of 1140 patients were included. In one-third of patients, platelet-bound autoantibodies against glycoproteins Ib/IX, IIb/IIIa, or V were detected in a monoclonal antibody immobilization of platelet antigen assay; platelet-bound autoantiglycoprotein V was present in the majority of samples (222 out of 343, 64.7%). Investigation of patient sera revealed the presence of free autoantibodies against glycoprotein V in 13.5% of these patients by an indirect monoclonal antibody immobilization of platelet antigen assay, but in 39.6% by surface plasmon resonance technology. These antibodies showed significantly lower avidity (association/dissociation ratio 0.32±0.13 vs. 0.73±0.14; P<0.001). High- and low-avidity antibodies induced comparable amounts of platelet uptake in a phagocytosis assay using CD14+ positively-selected human macrophages [mean phagocytic index, 6.81 (range, 4.75-9.86) vs. 6.01 (range, 5.00-6.98); P=0.954]. In a NOD/SCID mouse model, IgG prepared from both types of anti-glycoprotein V autoantibodies eliminated human platelets with no detectable difference between the groups from the murine circulation [mean platelet survival at 300 minutes, 40% (range, 27-55) vs. 35% (16-46); P=0.025]. Our data establish glycoprotein V as a relevant immune target in immune thrombocytopenia. We would suggest that further studies including glycoprotein V will be required before ITP treatment can be tailored according to platelet autoantibody specificity.
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Affiliation(s)
- Richard Vollenberg
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Rabie Jouni
- Center for Clinical Transfusion Medicine, Medical Faculty of Tübingen, Eberhard Karls University, Tübingen, Germany
| | - Peter A A Norris
- The Canadian Blood Services & The Keenan Research Centre of St. Michael's Hospital, Toronto, ON, Canada
| | - Monika Burg-Roderfeld
- Faculty for Chemistry and Biology, Fresenius University of Applied Sciences, Idstein, Germany
| | - Nina Cooper
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Mathias J Rummel
- IVth Department of Internal Medicine (Hematology/Oncology), Justus Liebig University, Giessen, Germany
| | - Gregor Bein
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Irene Marini
- Center for Clinical Transfusion Medicine, Medical Faculty of Tübingen, Eberhard Karls University, Tübingen, Germany
| | - Behnaz Bayat
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Richard Burack
- Department of Pathology and Laboratory Medicine, University of Rochester, NY, USA
| | - Alan H Lazarus
- The Canadian Blood Services & The Keenan Research Centre of St. Michael's Hospital, Toronto, ON, Canada
| | - Tamam Bakchoul
- Center for Clinical Transfusion Medicine, Medical Faculty of Tübingen, Eberhard Karls University, Tübingen, Germany
| | - Ulrich J Sachs
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany .,Center for Transfusion Medicine and Hemotherapy and Hemostasis Center, University Hospital Giessen and Marburg, Marburg, Germany
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Wu J, Li Y, Schuller RM, Li L, Litmeyer AS, Bein G, Sachs UJ, Bayat B. The nonconservative CD177 single-nucleotide polymorphism c.1291G>A is a genetic determinant for human neutrophil antigen-2 atypical/low expression and deficiency. Transfusion 2019; 59:1836-1842. [PMID: 30828823 DOI: 10.1111/trf.15222] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 01/18/2019] [Accepted: 01/18/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND Human neutrophil antigen-2 (HNA-2) is exclusively expressed on neutrophils. HNA-2-deficient individuals (HNA-2 null) are susceptible to produce isoantibodies. The nonsense CD177 coding single-nucleotide polymorphism (SNP) c.787A>T has been demonstrated as the primary genetic mechanism for HNA-2 deficiency. We hypothesized that the other genetic variants also contribute to HNA-2 expression variation and deficiency. STUDY DESIGN AND METHODS The deficiency, density, and percentage of HNA-2 antigen on neutrophils from 292 healthy blood donors were determined in flow cytometry. CD177 genotypes were determined by genomic DNA sequence analyses. The full-length CD177 cDNAs were amplified and sequenced. Additionally, the whole CD177 genomic sequence in eight HNA-2-null immunized women and four HNA-2-positive donors were analyzed with next-generation sequencing. The associations of CD177 SNP genotypes with HNA-2 expression variation were statistically analyzed. RESULTS A functional CD177 SNP c.1291G>A was identified in the current study. Atypical (trimodal) HNA-2 expression phenotype was consistently observed in donors carrying the heterozygous c.1291G/A genotype. Phenotype-genotype analyses of SNP c.787A>T and SNP c.1291G>A revealed that all homozygous 787T-1291G (TG/TG) genotype donors were HNA-2 null in healthy blood donors. On the other hand, five of eight HNA-2-immunized females were homozygous for the 787T-1291G (TG/TG) genotype while the other three HNA-2-immunized females had the 787T-1291G/787A-1291A (TG/AA) genotype and the lowest HNA-2 expression was observed in healthy subjects with the 787T-1291G/787A-1291A (TG/AA) and 787A-1291A/787A-1291A (AA/AA) genotype. CONCLUSION The CD177 SNP c.1291G>A is a genetic determinant for the atypical and low HNA-2 expression, which also contributes to HNA-2 deficiency phenotype.
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Affiliation(s)
- Jianming Wu
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St Paul, Minnesota
| | - Yunfang Li
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St Paul, Minnesota
| | - Randy M Schuller
- North Central Blood Services, National Neutrophil Reference Laboratory, American Red Cross, St Paul, Minnesota
| | - Ling Li
- Department of Clinical and Experimental Pharmacology, University of Minnesota Twin Cities, Minneapolis, Minnesota
| | - Anne-Sophie Litmeyer
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Gregor Bein
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Ulrich J Sachs
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Behnaz Bayat
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
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Gharagozloo M, Rezaei A, Kalantari H, Bahador A, Hassannejad N, Maracy M, Nouri N, Sedghi M, Ghazanfari H, Bayat B. Decline in peripheral blood NKG2D+CD3+CD56+ NKT cells in metastatic colorectal cancer patients. ACTA ACUST UNITED AC 2018; 119:6-11. [PMID: 29405723 DOI: 10.4149/bll_2018_002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Colorectal cancer (CRC) is one of the main causes of cancer deaths in the world. This cancer can be divided into non-metastatic and metastatic CRC stages. CD3+CD56+ NKT cell subsets are a minor T cell subset in peripheral blood and conduct the killing of tumor cells in direct manner. Little is obvious about levels and surface markers of these cells such as NKG2D in different cancers, especially in CRC. METHODS We included 15 non-metastatic (low-grade), 11 non-metastatic (high-grade), 10 metastatic colorectal cancer patients and 18 healthy controls. The percentages of CD3+CD56+ NKT cells and NKG2D+CD56+ NKT cells from samples were analyzed by flow cytometry in peripheral blood mononuclear cells (PBMCs) of samples. RESULTS We found that there was a significantly lower number of NKG2D+CD3+CD56+ cells in peripheral blood of patients with metastatic colorectal cancer compared with normal controls (77.53 ± 5.79 % vs 90.74 ± 9.84 %; p<0.01). CONCLUSION The fact that frequency of NKG2D+CD56+ NKT cells was significantly lower in patients with metastatic colorectal cancer compared to healthy controls strengthens the hypothesis that NKT cells can play a substantial role in the protection against human colorectal cancer, and this opens up avenues for novel studies about elucidating the other aspects of tumor surveillance in CRC progression and immunotherapy (Tab. 2, Fig. 2, Ref. 46).
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Bayat B, Bein G, Sachs UJ. A sequence-specific polymerase chain reaction method for HNA-2 genotyping: homozygous c.843A>T mutation predicts the absence of CD177. Transfusion 2016; 56:2127-32. [PMID: 27385476 DOI: 10.1111/trf.13689] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 04/18/2016] [Accepted: 04/21/2016] [Indexed: 11/28/2022]
Abstract
BACKGROUND Human neutrophil antigen-2 is located on a glycosylphosphatidylinositol-anchored receptor, CD177. Humans not expressing CD177 on their neutrophils may, under defined conditions, form isoantibodies. The genetic background for the absence of CD177 is not fully understood, and genetic screening of patients and donors is currently unavailable. A recent study has documented two mutations associated with CD177 absence: a nonsense polymorphism c.843A>T and a single-base deletion c.1011delG. STUDY DESIGN AND METHODS First, we aimed to demonstrate that these newly described mutations are indeed associated with the absence of CD177. DNA fragments from isoimmunized, CD177-negative individuals were sequenced (n = 5). An additional five negative and 10 positive individuals were also analyzed. Second, we aimed to establish a sequence-specific primer (SSP) polymerase chain reaction method for easy and rapid detection of these mutations. RESULTS None of 10 CD177-positive individuals, but four of 10 CD177-negative individuals were homozygous for the A>T mutation at Position c.843, including three of five isoimmunized individuals. This finding is supportive for the reported association. Surprisingly, and in contrast to the initial report, c.1011delG was not detected in our cohort. Furthermore, a two-step SSP method for c.843A>G was successfully established. CONCLUSION c.843A>T, but not c.1011delG, is associated with the absence of CD177 in a significant number of individuals, including CD177-isoimmunized women. The c.843A>T mutation is easily detectable by a newly established SSP, but screening for this mutation will only provide sufficient evidence for a final diagnosis in case of homozygosity for the c.843T allele.
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Affiliation(s)
- Behnaz Bayat
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
| | - Gregor Bein
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany.,German Center for Fetomaternal Incompatibility (DZFI), University Hospital Giessen and Marburg, Giessen, Germany
| | - Ulrich J Sachs
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany.,German Center for Fetomaternal Incompatibility (DZFI), University Hospital Giessen and Marburg, Giessen, Germany
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Santoso S, Wihadmadyatami H, Bakchoul T, Werth S, Al-Fakhri N, Bein G, Kiefel V, Zhu J, Newman PJ, Bayat B, Sachs UJ. Antiendothelial αvβ3 Antibodies Are a Major Cause of Intracranial Bleeding in Fetal/Neonatal Alloimmune Thrombocytopenia. Arterioscler Thromb Vasc Biol 2016; 36:1517-24. [PMID: 27283740 DOI: 10.1161/atvbaha.116.307281] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [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: 01/28/2016] [Accepted: 06/01/2016] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Fetal/neonatal alloimmune thrombocytopenia is a severe bleeding disorder, which can result in intracranial hemorrhage (ICH), leading to death or neurological sequelae. In whites, maternal anti-human platelet antigen-1a (HPA-1a) antibodies are responsible for the majority of cases. No predictive factors for ICH are available to guide prophylactic treatment during pregnancy. In this study, we investigated antibodies from mothers with ICH-positive fetal/neonatal alloimmune thrombocytopenia and with ICH-negative fetal/neonatal alloimmune thrombocytopenia to identify serological and functional differences between the groups. APPROACH AND RESULTS In an antigen capture assay, we observed a stronger binding of +ICH antibodies to endothelial cell (EC)-derived αvβ3. By absorption experiments, we subsequently identified anti-HPA-1a antibodies of anti-αvβ3 specificity in the +ICH but not in the -ICH cohort. Only the anti-αvβ3 subtype, but not the anti-β3 subtype, induced EC apoptosis of HPA-1a-positive ECs by caspase-3/7 activation, and mediated by reactive oxygen species. In addition, only the anti-αvβ3 subtype, but not the anti-β3 subtype, interfered with EC adhesion to vitronectin and with EC tube formation. CONCLUSIONS We conclude that the composition of the anti-HPA-1a antibody subtype(s) of the mother may determine whether ICH occurs. Analysis of anti-HPA-1a antibodies of the anti-αvβ3 subtype in maternal serum has potential in the diagnostic prediction of ICH development and may allow for modification of prophylactic treatment in fetal/neonatal alloimmune thrombocytopenia.
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Affiliation(s)
- Sentot Santoso
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (S.S., H.W., S.W., G.B., B.B., U.J.S.); Department of Anatomy, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia (H.W.); Institute for Immunology and Transfusion Medicine, Ernst-Moritz-Arndt University, Greifswald, Germany (T.B.); Center for Transfusion Medicine and Hemotherapy (N.A.-F., U.J.S.) and German Center for Fetomaternal Incompatibility (DZFI) (G.B., U.J.S.), University Hospital Giessen and Marburg, Giessen, Germany; Institute for Transfusion Medicine, University of Rostock, Rostock, Germany (V.K.); and Blood Research Institute, BloodCenter of Wisconsin, Milwaukee (J.Z., P.J.N.).
| | - Hevi Wihadmadyatami
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (S.S., H.W., S.W., G.B., B.B., U.J.S.); Department of Anatomy, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia (H.W.); Institute for Immunology and Transfusion Medicine, Ernst-Moritz-Arndt University, Greifswald, Germany (T.B.); Center for Transfusion Medicine and Hemotherapy (N.A.-F., U.J.S.) and German Center for Fetomaternal Incompatibility (DZFI) (G.B., U.J.S.), University Hospital Giessen and Marburg, Giessen, Germany; Institute for Transfusion Medicine, University of Rostock, Rostock, Germany (V.K.); and Blood Research Institute, BloodCenter of Wisconsin, Milwaukee (J.Z., P.J.N.)
| | - Tamam Bakchoul
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (S.S., H.W., S.W., G.B., B.B., U.J.S.); Department of Anatomy, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia (H.W.); Institute for Immunology and Transfusion Medicine, Ernst-Moritz-Arndt University, Greifswald, Germany (T.B.); Center for Transfusion Medicine and Hemotherapy (N.A.-F., U.J.S.) and German Center for Fetomaternal Incompatibility (DZFI) (G.B., U.J.S.), University Hospital Giessen and Marburg, Giessen, Germany; Institute for Transfusion Medicine, University of Rostock, Rostock, Germany (V.K.); and Blood Research Institute, BloodCenter of Wisconsin, Milwaukee (J.Z., P.J.N.)
| | - Silke Werth
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (S.S., H.W., S.W., G.B., B.B., U.J.S.); Department of Anatomy, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia (H.W.); Institute for Immunology and Transfusion Medicine, Ernst-Moritz-Arndt University, Greifswald, Germany (T.B.); Center for Transfusion Medicine and Hemotherapy (N.A.-F., U.J.S.) and German Center for Fetomaternal Incompatibility (DZFI) (G.B., U.J.S.), University Hospital Giessen and Marburg, Giessen, Germany; Institute for Transfusion Medicine, University of Rostock, Rostock, Germany (V.K.); and Blood Research Institute, BloodCenter of Wisconsin, Milwaukee (J.Z., P.J.N.)
| | - Nadia Al-Fakhri
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (S.S., H.W., S.W., G.B., B.B., U.J.S.); Department of Anatomy, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia (H.W.); Institute for Immunology and Transfusion Medicine, Ernst-Moritz-Arndt University, Greifswald, Germany (T.B.); Center for Transfusion Medicine and Hemotherapy (N.A.-F., U.J.S.) and German Center for Fetomaternal Incompatibility (DZFI) (G.B., U.J.S.), University Hospital Giessen and Marburg, Giessen, Germany; Institute for Transfusion Medicine, University of Rostock, Rostock, Germany (V.K.); and Blood Research Institute, BloodCenter of Wisconsin, Milwaukee (J.Z., P.J.N.)
| | - Gregor Bein
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (S.S., H.W., S.W., G.B., B.B., U.J.S.); Department of Anatomy, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia (H.W.); Institute for Immunology and Transfusion Medicine, Ernst-Moritz-Arndt University, Greifswald, Germany (T.B.); Center for Transfusion Medicine and Hemotherapy (N.A.-F., U.J.S.) and German Center for Fetomaternal Incompatibility (DZFI) (G.B., U.J.S.), University Hospital Giessen and Marburg, Giessen, Germany; Institute for Transfusion Medicine, University of Rostock, Rostock, Germany (V.K.); and Blood Research Institute, BloodCenter of Wisconsin, Milwaukee (J.Z., P.J.N.)
| | - Volker Kiefel
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (S.S., H.W., S.W., G.B., B.B., U.J.S.); Department of Anatomy, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia (H.W.); Institute for Immunology and Transfusion Medicine, Ernst-Moritz-Arndt University, Greifswald, Germany (T.B.); Center for Transfusion Medicine and Hemotherapy (N.A.-F., U.J.S.) and German Center for Fetomaternal Incompatibility (DZFI) (G.B., U.J.S.), University Hospital Giessen and Marburg, Giessen, Germany; Institute for Transfusion Medicine, University of Rostock, Rostock, Germany (V.K.); and Blood Research Institute, BloodCenter of Wisconsin, Milwaukee (J.Z., P.J.N.)
| | - Jieqing Zhu
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (S.S., H.W., S.W., G.B., B.B., U.J.S.); Department of Anatomy, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia (H.W.); Institute for Immunology and Transfusion Medicine, Ernst-Moritz-Arndt University, Greifswald, Germany (T.B.); Center for Transfusion Medicine and Hemotherapy (N.A.-F., U.J.S.) and German Center for Fetomaternal Incompatibility (DZFI) (G.B., U.J.S.), University Hospital Giessen and Marburg, Giessen, Germany; Institute for Transfusion Medicine, University of Rostock, Rostock, Germany (V.K.); and Blood Research Institute, BloodCenter of Wisconsin, Milwaukee (J.Z., P.J.N.)
| | - Peter J Newman
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (S.S., H.W., S.W., G.B., B.B., U.J.S.); Department of Anatomy, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia (H.W.); Institute for Immunology and Transfusion Medicine, Ernst-Moritz-Arndt University, Greifswald, Germany (T.B.); Center for Transfusion Medicine and Hemotherapy (N.A.-F., U.J.S.) and German Center for Fetomaternal Incompatibility (DZFI) (G.B., U.J.S.), University Hospital Giessen and Marburg, Giessen, Germany; Institute for Transfusion Medicine, University of Rostock, Rostock, Germany (V.K.); and Blood Research Institute, BloodCenter of Wisconsin, Milwaukee (J.Z., P.J.N.)
| | - Behnaz Bayat
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (S.S., H.W., S.W., G.B., B.B., U.J.S.); Department of Anatomy, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia (H.W.); Institute for Immunology and Transfusion Medicine, Ernst-Moritz-Arndt University, Greifswald, Germany (T.B.); Center for Transfusion Medicine and Hemotherapy (N.A.-F., U.J.S.) and German Center for Fetomaternal Incompatibility (DZFI) (G.B., U.J.S.), University Hospital Giessen and Marburg, Giessen, Germany; Institute for Transfusion Medicine, University of Rostock, Rostock, Germany (V.K.); and Blood Research Institute, BloodCenter of Wisconsin, Milwaukee (J.Z., P.J.N.)
| | - Ulrich J Sachs
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (S.S., H.W., S.W., G.B., B.B., U.J.S.); Department of Anatomy, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia (H.W.); Institute for Immunology and Transfusion Medicine, Ernst-Moritz-Arndt University, Greifswald, Germany (T.B.); Center for Transfusion Medicine and Hemotherapy (N.A.-F., U.J.S.) and German Center for Fetomaternal Incompatibility (DZFI) (G.B., U.J.S.), University Hospital Giessen and Marburg, Giessen, Germany; Institute for Transfusion Medicine, University of Rostock, Rostock, Germany (V.K.); and Blood Research Institute, BloodCenter of Wisconsin, Milwaukee (J.Z., P.J.N.).
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Gharagozloo M, Kalantari H, Rezaei A, Maracy MR, Salehi M, Bahador A, Hassannejad N, Narimani M, Sanei MH, Bayat B, Ghazanfari H. The decrease in NKG2D+ Natural Killer cells in peripheral blood of patients with metastatic colorectal cancer. ACTA ACUST UNITED AC 2015; 116:296-301. [PMID: 25924638 DOI: 10.4149/bll_2015_056] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Natural killer (NK) cells play important roles in the immune defense against tumors such as colorectal cancer. In humans, NKG2D is an activating immune receptor constitutively expressed in most cytotoxic lymphocytes including NK and CD8+ T cells. In this study, the expression of NKG2D molecule was investigated in peripheral blood NK cells from colorectal cancer patients and compared with healthy subjects. METHODS We studied 21 non-metastatic (low-grade), 17 non-metastatic (high-grade), 16 metastatic colorectal cancer patients, and 24 healthy controls. Peripheral blood samples were obtained to isolate peripheral blood mononuclear cells (PBMCs) and the percentage of peripheral blood NKG2D+CD3-CD56+ NK cells was analyzed by flow cytometry. The expression of NKG2D at mRNA level was also measured by real-time PCR in both, patients and control subjects. RESULTS The results showed a significant reduction in the percentage of NKG2D+NK cells as well as NKG2D mRNA expression in peripheral blood of metastatic colon cancer patients. CONCLUSION This result suggests that decreased expression of activating NKG2D receptor in metastatic colorectal cancer might compromise NK cell function and allow tumor to evade immunity (Tab. 3, Fig. 4, Ref. 33).
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Bayat B, Tjahjono Y, Berghöfer H, Werth S, Deckmyn H, De Meyer SF, Sachs UJ, Santoso S. Choline Transporter-Like Protein-2: New von Willebrand Factor-Binding Partner Involved in Antibody-Mediated Neutrophil Activation and Transfusion-Related Acute Lung Injury. Arterioscler Thromb Vasc Biol 2015; 35:1616-22. [PMID: 25931511 DOI: 10.1161/atvbaha.115.305259] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 03/30/2015] [Indexed: 01/08/2023]
Abstract
OBJECTIVE In contrast to other antibodies involved in transfusion-related acute lung injury, anti-HNA-3a antibodies are incapable of inducing direct neutrophil activation and seem to interact with endothelial cells (ECs) primarily. In animal studies, anti-HNA-3a-mediated transfusion-related acute lung injury could be precipitated in the absence of neutrophils, but was stronger when neutrophils were present. In a different context the target protein of these antibodies, choline transporter-like protein-2 (CTL-2), was reported to interact with a protein of the inner ear carrying 2 von Willebrand factor (VWF) A-domains. These observations prompted us to investigate whether VWF might be involved in anti-HNA-3a-mediated neutrophil activation, and whether signaling via CD11b/CD18 is involved, as in various other experimental settings. APPROACH AND RESULTS Cell adhesion demonstrated specific binding of CTL-2 to VWF. Immunoprecipitation analysis of CTL-2/CD11b/CD18 coexpressing cells indicated that anti-HNA-3a colocalizes CTL-2 and CD11b/CD18 when VWF is present. Functional studies revealed that anti-HNA-3a-mediated neutrophil agglutination is an active, protein kinase C-dependent and partially Fc-dependent process. Agglutination and the production of reactive oxygen species seem to require the formation of a trimolecular complex between the target antigen (CTL-2), CD11b/CD18 and VWF. In line with these observations, anti-HNA-3a induced less severe transfusion-related acute lung injury and less neutrophil recruitment to the alveolar space in VWF knockout mice. CONCLUSIONS We introduce CTL-2 as a new binding partner for VWF. Interaction of neutrophils with VWF via CTL-2 allows anti-HNA-3a to induce signal transduction via CD11b/CD18, which leads to neutrophil activation and agglutination. In transfusion-related acute lung injury, this mechanism may further aggravate endothelial leakage.
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Affiliation(s)
- Behnaz Bayat
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (B.B., Y.T., H.B., S.W., U.J.S., S.S.); and Laboratory for Thrombosis Research, KU Leuven Kulak, Kortrijk, Belgium (H.D., S.F.D.M.)
| | - Yudy Tjahjono
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (B.B., Y.T., H.B., S.W., U.J.S., S.S.); and Laboratory for Thrombosis Research, KU Leuven Kulak, Kortrijk, Belgium (H.D., S.F.D.M.)
| | - Heike Berghöfer
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (B.B., Y.T., H.B., S.W., U.J.S., S.S.); and Laboratory for Thrombosis Research, KU Leuven Kulak, Kortrijk, Belgium (H.D., S.F.D.M.)
| | - Silke Werth
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (B.B., Y.T., H.B., S.W., U.J.S., S.S.); and Laboratory for Thrombosis Research, KU Leuven Kulak, Kortrijk, Belgium (H.D., S.F.D.M.)
| | - Hans Deckmyn
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (B.B., Y.T., H.B., S.W., U.J.S., S.S.); and Laboratory for Thrombosis Research, KU Leuven Kulak, Kortrijk, Belgium (H.D., S.F.D.M.)
| | - Simon F De Meyer
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (B.B., Y.T., H.B., S.W., U.J.S., S.S.); and Laboratory for Thrombosis Research, KU Leuven Kulak, Kortrijk, Belgium (H.D., S.F.D.M.)
| | - Ulrich J Sachs
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (B.B., Y.T., H.B., S.W., U.J.S., S.S.); and Laboratory for Thrombosis Research, KU Leuven Kulak, Kortrijk, Belgium (H.D., S.F.D.M.)
| | - Sentot Santoso
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (B.B., Y.T., H.B., S.W., U.J.S., S.S.); and Laboratory for Thrombosis Research, KU Leuven Kulak, Kortrijk, Belgium (H.D., S.F.D.M.).
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Bayat B, Tjahjono Y, Sydykov A, Werth S, Hippenstiel S, Weissmann N, Sachs UJ, Santoso S. Anti-human neutrophil antigen-3a induced transfusion-related acute lung injury in mice by direct disturbance of lung endothelial cells. Arterioscler Thromb Vasc Biol 2013; 33:2538-48. [PMID: 24008160 DOI: 10.1161/atvbaha.113.301206] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Antibodies against human neutrophil antigen-3a (HNA-3a) located on choline transporter-like protein 2 induce severe transfusion-related acute lung injury (TRALI). This study aims to identify the mechanism implicated in anti-HNA-3a-mediated TRALI. APPROACH AND RESULTS Our analysis shows that anti-HNA-3a recognizes 2 choline transporter-like protein 2 isoforms (P1 and P2) on human microvascular endothelial cells from lung blood vessels but reacts only with the P1 isoform on neutrophils. Direct treatment of HNA-3a-positive endothelial cells with anti-HNA-3a, but not with anti-HNA-3b, leads to reactive oxygen species production, increased albumin influx, and decreased endothelial resistance associated with the formation of actin stress filaments and loosening of junctional vascular endothelium-cadherin. In a novel in vivo mouse model, TRALI was documented by significant increase in lung water content, albumin concentration, and neutrophil numbers in the bronchoalveolar lavage on injection of human anti-HNA-3a in lipopolysaccharides-treated, as well as nontreated mice. Interestingly, although neutrophil depletion alleviated severity of lung injury, it failed to prevent TRALI in this model. Infusion of anti-HNA-3a F(ab')2 fragments caused moderate TRALI. Finally, mice lacking nicotinamide adenine dinucleotide phosphate oxidase (NOX2(y/-)) were protected from anti-HNA-3a-mediated TRALI. CONCLUSIONS These data demonstrate the initiation of endothelial barrier dysfunction in vitro and in vivo by direct binding of anti-HNA-3a on endothelial cells. It seems, however, that the presence of neutrophils aggravates barrier dysfunction. This novel mechanism of TRALI primarily mediated by endothelial cell dysfunction via choline transporter-like protein 2 may help to define new treatment strategies to decrease TRALI-related mortality.
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Affiliation(s)
- Behnaz Bayat
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany (B.B., Y.T., S.W., U.J.S., S.S.); Department of Internal Medicine II/V, ECCPS, University of Giessen and Marburg Lung Center (UGMLC), Member of the DZL, Giessen, Germany (A.S., N.W.); and Department of Infectious Diseases and Respiratory Medicine of the Charité Medical University, Berlin, Germany (S.H.)
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Sanati MH, Bayat B, Aleyasin A, Atashi Shirazi H, Isaian A, Farhoudi A, Moin M. ATM Gene Mutations Detection in Iranian Ataxia-Telangiectasia Patients. Iran J Allergy Asthma Immunol 2012; 3:59-63. [PMID: 17301393 DOI: 03.02/ijaai.5963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Ataxia-Telangiectasia (AT) is an autosomal recessive disorder involving cerebellar degeneration, immunodeficiency, radiation sensitivity and cancer predisposition. The ATM gene on human chromosome 11q22.3 has recently been identified as the gene responsible for ataxia-telangiectasia (AT). The gene mutated in AT, which has been designated as the ATM gene, encodes a large protein kinase with a PI-3 kinase-related domain. More than 100 mutations are broadly distributed throughout the ATM gene. The large size of the ATM gene (66 exons spanning ~150kb of genomic DNA) together with the diversity and broad distribution of mutations in AT patients, greatly limits the utility of direct mutation screening as a diagnostic tool. In this study, 20 families with at least one affected child clinically suspected to have ataxia-telangiectasia were examined and their DNA was extracted and amplified with standard methods. Sequencing methods were used to detect the new point mutation. Four exons which were hot spots for point mutations in ATM gene were detected by PCR-SSCP or PCR-RFLP.
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Werth S, Bayat B, Tjahjono Y, Eskandar J, Berghöfer H, Bein G, Sachs UJ, Santoso S. Rapid enzyme-linked immunosorbent assay for the detection of antibodies against human neutrophil antigens -1a, -1b, and -1c. Transfusion 2012; 53:193-201. [PMID: 22554254 DOI: 10.1111/j.1537-2995.2012.03675.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Several methods exist for the detection of neutrophil antibodies; most of them, however, require fresh neutrophils. In this study, an enzyme-linked immunosorbent assay (ELISA) using recombinant HNA-1 antigens (rHNAs) was developed to detect HNA-1a, -1b, and -1c alloantibodies in serum samples. STUDY DESIGN AND METHODS Soluble rHNA-1a, -1b, and -1c were isolated from culture supernatant of transfected insect cells. Purified rHNA antigens were immobilized on microtiter wells using antibody against V5-Tag protein. Sera were added, and bound antibodies were detected by enzyme-labeled secondary antibodies. In parallel, monoclonal antibody-immobilized granulocyte antigen (MAIGA) was performed with two different monoclonal antibodies (MoAbs) against FcγRIIIb (3G8 and BW209). RESULTS Fifteen MAIGA-positive sera containing HNA-1a alloantibodies were tested in ELISA. Thirteen of 15 (86.7%) MAIGA-positive sera captured by MoAbs 3G8 and/or BW209 reacted specifically with rHNA-1a. Four (26.7%) HNA-1a sera showed additional reaction with rHNA-1c. When anti-HNA-1b alloantibodies were analyzed in ELISA, 13 of 15 (86.7%) showed specific positive reaction with rHNA-1b, and 12 of 15 (80.0%) cross-reacted with rHNA-1c. Two HNA-1c sera reacted specifically with rHNA-1c. Immunoprecipitation analysis of all ELISA-negative HNA-1a and -1b sera did not show any specific band indicating false-positive reaction of these sera in MAIGA assay. CONCLUSIONS These results suggested that rapid ELISA using recombinant neutrophil antigens may provide a valuable method for rapid screening of human alloantibodies against HNA-1a, -1b, and -1c in patients with neutropenia and in blood donors.
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Affiliation(s)
- Silke Werth
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
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Bayat B, Tjahjono Y, Werth S, Berghöfer H, Reil A, Kroll H, Sachs UJ, Santoso S. Implication of transfected cell lines for the detection of alloantibodies against human neutrophil antigen-3. Transfusion 2011; 52:613-21. [DOI: 10.1111/j.1537-2995.2011.03303.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Jerke U, Rolle S, Dittmar G, Bayat B, Santoso S, Sporbert A, Luft F, Kettritz R. Complement receptor Mac-1 is an adaptor for NB1 (CD177)-mediated PR3-ANCA neutrophil activation. J Biol Chem 2011; 286:7070-81. [PMID: 21193407 PMCID: PMC3044964 DOI: 10.1074/jbc.m110.171256] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2010] [Revised: 12/04/2010] [Indexed: 11/06/2022] Open
Abstract
The glycosylphosphatidylinositol (GPI)-anchored neutrophil-specific receptor NB1 (CD177) presents the autoantigen proteinase 3 (PR3) on the membrane of a neutrophil subset. PR3-ANCA-activated neutrophils participate in small-vessel vasculitis. Since NB1 lacks an intracellular domain, we characterized components of the NB1 signaling complex that are pivotal for neutrophil activation. PR3-ANCA resulted in degranulation and superoxide production in the mNB1(pos)/PR3(high) neutrophils, but not in the mNB1(neg)/PR3(low) subset, whereas MPO-ANCA and fMLP caused similar responses. The NB1 signaling complex that was precipitated from plasma membranes contained the transmembrane receptor Mac-1 (CD11b/CD18) as shown by MS/MS analysis and immunoblotting. NB1 co-precipitation was less for CD11a and not detectable for CD11c. NB1 showed direct protein-protein interactions with both CD11b and CD11a by surface plasmon resonance analysis (SPR). However, when these integrins were presented as heterodimeric transmembrane proteins on transfected cells, only CD11b/CD18 (Mac-1)-transfected cells adhered to immobilized NB1 protein. This adhesion was inhibited by mAb against NB1, CD11b, and CD18. NB1, PR3, and Mac-1 were located within lipid rafts. In addition, confocal microscopy showed the strongest NB1 co-localization with CD11b and CD18 on the neutrophil. Stimulation with NB1-activating mAb triggered degranulation and superoxide production in mNB1(pos)/mPR3(high) neutrophils, and this effect was reduced using blocking antibodies to CD11b. CD11b blockade also inhibited PR3-ANCA-induced neutrophil activation, even when β2-integrin ligand-dependent signals were omitted. We establish the pivotal role of the NB1-Mac-1 receptor interaction for PR3-ANCA-mediated neutrophil activation.
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Affiliation(s)
- Uwe Jerke
- From the Medical Faculty of the Charité, Experimental and Clinical Research Center, Berlin, Germany
| | - Susanne Rolle
- From the Medical Faculty of the Charité, Experimental and Clinical Research Center, Berlin, Germany
| | - Gunnar Dittmar
- the Max-Delbrück-Center for Molecular Medicine, Berlin 13125, Germany, and
| | - Behnaz Bayat
- the Institut for Clinical Immunology and Transfusion Medicine, Justus von Liebig University, Giessen 35385, Germany
| | - Sentot Santoso
- the Institut for Clinical Immunology and Transfusion Medicine, Justus von Liebig University, Giessen 35385, Germany
| | - Anje Sporbert
- the Max-Delbrück-Center for Molecular Medicine, Berlin 13125, Germany, and
| | - Friedrich Luft
- From the Medical Faculty of the Charité, Experimental and Clinical Research Center, Berlin, Germany
| | - Ralph Kettritz
- From the Medical Faculty of the Charité, Experimental and Clinical Research Center, Berlin, Germany
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Kroll H, Feldmann K, Zwingel C, Hoch J, Bald R, Bein G, Bayat B, Santoso S. A new platelet alloantigen, Swi(a) , located on glycoprotein Ia identified in a family with fetal and neonatal alloimmune thrombocytopenia. Transfusion 2011; 51:1745-54. [PMID: 21332723 DOI: 10.1111/j.1537-2995.2010.03038.x] [Citation(s) in RCA: 11] [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: 11/30/2022]
Abstract
BACKGROUND Fetal and neonatal alloimmune thrombocytopenia (FNAIT) is a bleeding disorder caused by transplacental passage of maternal antibodies to fetuses whose platelets (PLTs) express the corresponding human PLT antigen (HPA). STUDY DESIGNS AND METHODS We observed a fetus with FNAIT who died from a severe intracranial hemorrhage. Analysis of maternal serum in antigen capture assay with paternal PLTs showed reactivity with PLT glycoprotein (GP)IIb/IIIa (α(IIb) β(3) ) and GPIa/IIa (α(2) β(1) integrin), indicating the presence of anti-HPA-1a and an additional alloantibody against GPIa (termed anti-Swi(a) ). RESULTS By immunochemical studies, the localization of the Swi(a) antigen on GPIa/IIa could be confirmed. Analysis of paternal GPIa full-length cDNA showed a single-nucleotide substitution C(3347) T in Exon 28 resulting in a Thr(1087) Met amino acid substitution. Testing of family members by polymerase chain reaction-restriction fragment length polymorphism using MslI endonuclease showed perfect correlation with phenotyping. Extended family and population studies showed that 4 of 10 members of the paternal family but none of 500 unrelated blood donors were Swi(a) carriers. Expression studies on allele-specific transfected Chinese hamster ovary (CHO) cells confirmed that the single-amino-acid substitution Thr(1087) Met was responsible for the formation of the Swi(a) epitope. Adhesion of CHO cells expressing the Swi(a) alloantigen to immobilized collagens was not impaired compared to the wild-type control and was not inhibited by anti-Swi(a) alloantibodies. CONCLUSION In this study we defined a new PLT alloantigen Swi(a) that was involved in a case of additional immunization against HPA-1a. Our observations demonstrate that combinations of PLT-specific alloantibodies may comprise low-frequency alloantigens.
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Affiliation(s)
- Hartmut Kroll
- Institute for Transfusion Medicine Dessau, Red Cross Blood Transfusion Service NSTOB, Dessau, Germany.
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Xia W, Bayat B, Sachs U, Chen Y, Shao Y, Xu X, Deng J, Ding H, Fu Y, Ye X, Santoso S. The frequencies of human neutrophil alloantigens in the Chinese Han population of Guangzhou. Transfusion 2010; 51:1271-7. [PMID: 21166683 DOI: 10.1111/j.1537-2995.2010.02979.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
BACKGROUND Antibodies against polymorphic structures on human neutrophil antigens (HNAs) play a role in alloimmune-mediated neutropenia and are the leading cause of antibody-mediated transfusion-related acute lung injury (TRALI). This study aimed to determine the frequencies of HNAs in the major Han ethnic group living in Guangdong Province, Southern China. STUDY DESIGN AND METHODS A total of 493 healthy Chinese Han blood donors from Guangzhou were recruited. DNA samples were isolated and typed for all five HNA-1, -2, -3, -4, and -5 systems using allele-specific polymerase chain reaction approaches. Results were compared with available data from other Chinese cohorts and other Asian and Caucasian populations. RESULTS In this cohort, the gene frequency for HNA-1a (0.667) was approximately twice that of HNA-1b (0.333). In contrast to Caucasian populations, HNA-1a represents the most frequent allele in the Chinese population. HNA-3 system genotyping revealed comparable frequencies for HNA-3a (0.738) and -3b (0.262) in Chinese and Caucasian populations. Homozygous HNA-3 bb individuals were found in 5.64% of our cohort. HNA-4 genotyping revealed no HNA-4 bb homozygous individuals. In contrast, HNA-5 bb homozygous individuals represented 2.43% of the population. Typing the HNA-2 system for the single-nucleotide polymorphism C42G showed that the C-allele (69%) is overrepresented and is associated with an increased number of HNA-2a-positive neutrophil subpopulations. CONCLUSION This study describes for the first time the frequencies of all HNA systems, including the newly identified HNA-3, within one cohort of Chinese Han population. Comparison with Caucasian populations may allow assessment of anti-HNA alloimmunization and estimation of alloimmune neutropenia and TRALI incidence in Chinese populations.
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Affiliation(s)
- Wenjie Xia
- Institute of Blood Transfusion, Guangzhou Blood Center, Guangzhou, Guangdong, China
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Bayat B, Werth S, Sachs UJH, Newman DK, Newman PJ, Santoso S. Neutrophil transmigration mediated by the neutrophil-specific antigen CD177 is influenced by the endothelial S536N dimorphism of platelet endothelial cell adhesion molecule-1. J Immunol 2010; 184:3889-96. [PMID: 20194726 DOI: 10.4049/jimmunol.0903136] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The human neutrophil-specific adhesion molecule CD177 (also known as the NB1 alloantigen) becomes upregulated on the cell surface in a number of inflammatory settings. We recently showed that CD177 functions as a novel heterophilic counterreceptor for the endothelial junctional protein PECAM-1 (CD31), an interaction that is mediated by membrane-proximal PECAM-1 IgD 6, which is known to harbor an S(536)N single nucleotide polymorphism of two major isoforms V(98)N(536)G(643) and L(98)S(536)R(643) and a yet-to-be-determined region on CD177. In vitro transendothelial migration experiments revealed that CD177(+) neutrophils migrated significantly faster through HUVECs expressing the LSR, compared with the VNG, allelic variant of PECAM-1 and that this correlated with the decreased ability of anti-PECAM-1 Ab of ITIM tyrosine phosphorylation in HUVECs expressing the LSR allelic variant relative to the VNG allelic variant. Moreover, engagement of PECAM-1 with rCD177-Fc (to mimic heterophilic CD177 binding) suppressed Ab-induced tyrosine phosphorylation to a greater extent in cells expressing the LSR isoform compared with the VNG isoform, with a corresponding increased higher level of beta-catenin phosphorylation. These data suggest that heterophilic PECAM-1/CD177 interactions affect the phosphorylation state of PECAM-1 and endothelial cell junctional integrity in such a way as to facilitate neutrophil transmigration in a previously unrecognized allele-specific manner.
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Affiliation(s)
- Behnaz Bayat
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
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Bayat B, Werth S, Sachs UJH, Santoso S. A novel enzyme-linked immunosorbent assay method for the detection of human neutrophil antigen-2a antibodies. Transfusion 2009; 49:1819-24. [PMID: 19497055 DOI: 10.1111/j.1537-2995.2009.02229.x] [Citation(s) in RCA: 12] [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: 11/28/2022]
Abstract
BACKGROUND Antibodies to human neutrophil antigen (HNA)-2a are responsible for a number of immune-mediated neutropenia disorders. Although several methods exist for the identification of anti-HNA-2a, all these methods have several limitations. In this study, a solid-phase enzyme-linked immunosorbent assay (ELISA) using recombinant HNA-2a antigen (rHNA-2a) allowing rapid detection of HNA-2a antibodies was developed. STUDY DESIGN AND METHODS Soluble rHNA-2 was generated by transfection of insect cells with CD177 vector. Purified rHNA-2a was immobilized on microtiter wells coated with anti-CD177 and was applied to analyze 10 sera containing HNA-2a antibodies. For the evaluation of the ELISA method, results were compared with the standard assay, MAIGA (monoclonal antibody antigen capture assay) for detection of neutrophil antibodies. RESULTS The specificity of HNA-2a antibodies in all sera was confirmed by immunoblotting. Sera were then tested simultaneously in ELISA and MAIGA assays. Nine of 10 sera showed positive reactions in ELISA, whereas only 9 of 10 sera reacted in the standard MAIGA assay. All HNA-2a antibodies were detectable in MAIGA when diluted sera were applied. No reaction was observed with different sera containing neutrophil-reactive antibodies (6 anti-HNA-1a, 4 anti-HNA-1b, and 20 anti-HLA Class I and II) in ELISA. All HNA-2a antibodies were detectable in MAIGA when diluted sera were applied. Notably, sera containing anti-proteinase 3 (PR3) from patients with Wegener's granulomatosis reacted in MAIGA. In contrast, this antibody showed no reaction in ELISA with purified rHNA-2a. CONCLUSIONS These results demonstrated that ELISA with rHNA-2a provides a good method for detecting HNA-2a antibodies in human serum. This assay enables to exclude the presence of autoantibody against PR3 in patient's sera, which cannot be differentiated from anti HNA-2a with current serologic methods.
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Affiliation(s)
- Behnaz Bayat
- From the Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
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Korkmaz B, Kuhl A, Bayat B, Santoso S, Jenne DE. A hydrophobic patch on proteinase 3, the target of autoantibodies in Wegener's granulomatosis, mediates membrane binding via NB1 receptors. FASEB J 2009. [DOI: 10.1096/fasebj.23.1_supplement.498.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Brice Korkmaz
- NeuroimmunologyMax‐Planck‐Institute of NeurobiologyMartinsried‐PlaneggGermany
| | - Angelika Kuhl
- NeuroimmunologyMax‐Planck‐Institute of NeurobiologyMartinsried‐PlaneggGermany
| | - Behnaz Bayat
- Institute for Clinical Immunology and Transfusion MedicineGießenGermany
| | - Sentot Santoso
- Institute for Clinical Immunology and Transfusion MedicineGießenGermany
| | - Dieter E. Jenne
- NeuroimmunologyMax‐Planck‐Institute of NeurobiologyMartinsried‐PlaneggGermany
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Suri F, Kalhor R, Zargar SJ, Nilforooshan N, Yazdani S, Nezari H, Paylakhi SH, Narooie-Nejhad M, Bayat B, Sedaghati T, Ahmadian A, Elahi E. Screening of common CYP1B1 mutations in Iranian POAG patients using a microarray-based PrASE protocol. Mol Vis 2008; 14:2349-56. [PMID: 19096718 PMCID: PMC2603445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2008] [Accepted: 12/04/2008] [Indexed: 11/23/2022] Open
Abstract
PURPOSE The gene coding cytochrome P4501B1 (CYP1B1) has been shown to be a major cause of primary congenital glaucoma in the Iranian population. More recently it was shown to also be important in juvenile-onset open angle glaucoma (JOAG). We aimed to further investigate the role of CYP1B1 in a larger cohort of primary open angle glaucoma (POAG) patients which included late-onset patients. We also aimed to set up a microarray based protocol for mutation screening with an intent of using the protocol in a future population level screening program. METHODS Sixty three POAG patients, nine affected family members, and thirty three previously genotyped primary congenital glaucoma (PCG) patients were included in the study. Clinical examination included slit lamp biomicroscopy, IOP measurement, gonioscopic evaluation, fundus examination, and measurement of perimetry. G61E, R368H, R390H, and R469W were screened by a protocol that included multiplexed allele specific amplification in the presence of a protease (PrASE), use of sequence tagged primers, and hybridization to generic arrays on microarray slides. The entire coding sequences of CYP1B1 and myocilin (MYOC) genes were sequenced in all individuals assessed by the microarray assay to carry a mutation. Intragenic single nucleotide polymorphism (SNP) haplotpes were determined for mutated alleles. RESULTS Genotypes assessed by the array-based PrASE methodology were in 100% concordance with sequencing results. Seven mutation carrying POAG patients (11.1%) were identified, and their distribution was quite skewed between the juvenile-onset individuals (5/21) as compared to late-onset cases (2/42). Four of the seven mutation carrying Iranian patients harbored two mutated alleles. CYP1B1 mutated alleles in Iranian PCG and POAG patients shared common haplotypes. MYOC mutations were not observed in any of the patients. CONCLUSIONS The PrASE approach allowed reliable simultaneous genotyping of many individuals. It can be an appropriate tool for screening common mutations in large sample sizes. The results suggest that CYP1B1 is implicated in POAG among Iranians, notably in the juvenile-onset form. Contrary to POAG patients studied in other populations, many mutation harboring Iranian patients carry two mutated alleles. We propose an explanation for this observation.
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Affiliation(s)
- Fatemeh Suri
- School of Biology, University College of Science, University of Tehran, Tehran, Iran
| | - Reza Kalhor
- Department of Biotechnology, University of Tehran, Tehran, Iran
| | - Seyed Jalal Zargar
- School of Biology, University College of Science, University of Tehran, Tehran, Iran
| | - Navid Nilforooshan
- Department of Ophthalmology, Iran University of Medical Sciences, Hazrat Rasool Hospital, Tehran, Iran
| | - Shahin Yazdani
- Ophthalmic Research Center, Shaheed Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein Nezari
- School of Biology, University College of Science, University of Tehran, Tehran, Iran
| | - Seyed Hassan Paylakhi
- Department of Genetics, Faculty of Basic Science, Tarbiat Modares University, Tehran, Iran
| | | | - Behnaz Bayat
- National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | | | - Afshin Ahmadian
- Department of Biotechnology, Royal Institute of Technology, Stockholm, Sweden
| | - Elahe Elahi
- School of Biology, University College of Science, University of Tehran, Tehran, Iran,Bioinformatics Center, Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran,Center of Excellence in Biomathematics, School of Mathematics, Statistics and Computer Science, University of Tehran, Tehran, Iran
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Korkmaz B, Kuhl A, Bayat B, Santoso S, Jenne DE. A hydrophobic patch on proteinase 3, the target of autoantibodies in Wegener granulomatosis, mediates membrane binding via NB1 receptors. J Biol Chem 2008; 283:35976-82. [PMID: 18854317 DOI: 10.1074/jbc.m806754200] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Proteinase 3 (PR3), the target antigen of antineutrophil cytoplasm autoantibodies, which are found in patients with Wegener granulomatosis, is a neutrophil serine protease localized within cytoplasmic granules. Recently, the human neutrophil antigen NB1 was identified as a specific neutrophil cell surface receptor of PR3. We hypothesized that the unique hydrophobic cluster of PR3 that is not present on human neutrophil elastase and cathepsin G and presumably is also missing in other human PR3 homologs accounts for its binding to the NB1 receptor expressed on the cellular surface of NB1 cells. Instead of generating and testing various artificial human PR3 mutants, we cloned and expressed the very closely related gibbon (Hylobates pileatus) PR3 homolog, which did not bind to the human NB1 receptor. Moreover, a human-gibbon hybrid constructed from the N- and C-terminal half of the human and gibbon PR3, respectively, also did not interact with human NB1. The C-terminal half of gibbon PR3 differs only by 9 residues from human PR3, among which four closely spaced hydrophobic residues are substituted in a nonconservative manner (F166L, W218R, G219A, and L223H). The NB1-bound PR3 was active and was cleared from the surface by alpha-1-protease inhibitor. Conformational distortion of the hydrophobic 217-225 loop by alpha-1-protease inhibitor most likely triggers rapid solubilization.
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Affiliation(s)
- Brice Korkmaz
- Department of Neuroimmunology, Max-Planck-Institute of Neurobiology, D-82152 Planegg-Martinsried, Germany
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41
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Bayat B, Yazdani S, Alavi A, Chiani M, Chitsazian F, Tusi BK, Suri F, Narooie-Nejhad M, Sanati MH, Elahi E. Contributions of MYOC and CYP1B1 mutations to JOAG. Mol Vis 2008; 14:508-17. [PMID: 18385784 PMCID: PMC2268862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2007] [Accepted: 02/21/2008] [Indexed: 11/20/2022] Open
Abstract
PURPOSE To investigate the role of MYOC and CYP1B1 in Iranian juvenile open angle glaucoma (JOAG) patients. METHODS Twenty-three JOAG probands, their available affected and unaffected family members, and 100 ethnically matched control individuals without history of ocular disease were recruited. Clinical examinations of the probands included slit lamp biomicroscopy, intraocular pressure (IOP) measurement, gonioscopic evaluation, fundus examination, and perimetry measurement. Familial cases were classified according to the mode of inheritance. Exons of MYOC and CYP1B1 were sequenced, and novel variations assessed in the control individuals. Potential disease-associated variations were tested for segregation with disease status in available family members. RESULTS The mode of inheritance of the disease in the families of four probands (17.4%) appeared to be autosomal dominant and in at least eight (34.8%) to be autosomal recessive. Four patients carried MYOC mutations, and an equal number carried CYP1B1 mutations. The MYOC mutations were heterozygous; two of them (p.C8X and p.L334P) are novel, and one codes for the shortest truncated protein so far reported. Autosomal recessive inheritance was consistent with inheritance observed in families of patients carrying CYP1B1 mutations. All these patients carried homozygous mutations. CONCLUSIONS MYOC and CYP1B1 contributed equally to the disease status of the Iranian JOAG patients studied. The contribution of the two genes appeared to be independent in that no patient carried mutations in both genes. The fraction of Iranian patients carrying MYOC mutations was comparable to previously reported populations.
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Affiliation(s)
- Behnaz Bayat
- National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Shahin Yazdani
- Ophthalmic Research Center, Shaheed Beheshti University of Medical Sciences, Tehran, Iran
| | - Afagh Alavi
- National Institute of Genetic Engineering and Biotechnology, Tehran, Iran,School of Biology, University College of Science, University of Tehran, Tehran, Iran
| | - Mohsen Chiani
- Research Center for Gastroenterology and Liver Diseases, Shaheed Beheshti University of Medical Sciences, Tehran, Iran
| | - Fereshteh Chitsazian
- National Institute of Genetic Engineering and Biotechnology, Tehran, Iran,School of Biology, University College of Science, University of Tehran, Tehran, Iran
| | - Betsabeh Khoramian Tusi
- National Institute of Genetic Engineering and Biotechnology, Tehran, Iran,School of Biology, University College of Science, University of Tehran, Tehran, Iran
| | - Fatemeh Suri
- National Institute of Genetic Engineering and Biotechnology, Tehran, Iran,School of Biology, University College of Science, University of Tehran, Tehran, Iran
| | | | - Mohammad H Sanati
- National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Elahe Elahi
- National Institute of Genetic Engineering and Biotechnology, Tehran, Iran,School of Biology, University College of Science, University of Tehran, Tehran, Iran,Center of Excellence in Biomathematics, School of Mathematics, Statistics and Computer Science, University of Tehran, Tehran, Iran
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42
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Alavi A, Elahi E, Tehrani MH, Amoli FA, Javadi MA, Rafati N, Chiani M, Banihosseini SS, Bayat B, Kalhor R, Amini SSH. Four mutations (three novel, one founder) in TACSTD2 among Iranian GDLD patients. Invest Ophthalmol Vis Sci 2007; 48:4490-7. [PMID: 17898270 DOI: 10.1167/iovs.07-0264] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
PURPOSE To perform a mutation screening of TACSTD2 in 13 Iranian Gelatinous Drop-like Corneal Dystrophy (GDLD) pedigrees. To assess genotype-phenotype correlations. To determine intragenic SNP haplotypes associated with the mutations, so as to gain information on their origin. METHODS The coding region of TACSTD2 was sequenced in the probands of 13 unrelated Iranian GDLD pedigrees. Variations were assessed in other available affected and unaffected family members and in unrelated normal control subjects by restriction fragment length polymorphism (RFLP). The variations were classified as being associated with disease if they segregated with the disease phenotype in the families, were not observed in 100 control individuals, disrupted protein expression, or affected conserved positions in the coded protein. Three intragenic single-nucleotide polymorphisms (SNPs) were used to define haplotypes associated with putative disease-causing mutations. RESULTS The probands were each homozygous for one of four putative disease-causing variations observed in TACSTD2: C66X, F114C, L186P, and E227K. Three of these are novel. E227K was found in 10 of the Iranian patients. There were some phenotypic differences among different patients carrying this mutation-for example, with respect to age at onset. Genotyping of intragenic SNPs identified four haplotypes. C66X, F114C, and L186P were each associated with a haplotype common among control chromosomes, whereas all E227K alleles were associated with a haplotype not found among the control chromosomes. CONCLUSIONS Although mutations in TACSTD2 among Iranian patients with GDLD were heterogeneous, E227K was found to be a common mutation. It is suggested that E227K may be a founder mutation in this population. Based on positions of known mutations in TACSTD2, significance of the thyroglobulin domain of the TACSTD2 protein in the pathogenesis of GDLD is suggested.
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Affiliation(s)
- Afagh Alavi
- National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
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Chitsazian F, Tusi BK, Elahi E, Saroei HA, Sanati MH, Yazdani S, Pakravan M, Nilforooshan N, Eslami Y, Mehrjerdi MAZ, Zareei R, Jabbarvand M, Abdolahi A, Lasheyee AR, Etemadi A, Bayat B, Sadeghi M, Banoei MM, Ghafarzadeh B, Rohani MR, Rismanchian A, Thorstenson Y, Sarfarazi M. CYP1B1 mutation profile of Iranian primary congenital glaucoma patients and associated haplotypes. J Mol Diagn 2007; 9:382-93. [PMID: 17591938 PMCID: PMC1899412 DOI: 10.2353/jmoldx.2007.060157] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The mutation spectrum of CYP1B1 among 104 primary congenital glaucoma patients of the genetically heterogeneous Iranian population was investigated by sequencing. We also determined intragenic single nucleotide polymorphism (SNP) haplotypes associated with the mutations and compared these with haplotypes of other populations. Finally, the frequency distribution of the haplotypes was compared among primary congenital glaucoma patients with and without CYP1B1 mutations and normal controls. Genotype classification of six high-frequency SNPs was performed using the PHASE 2.0 software. CYP1B1 mutations in the Iranian patients were very heterogeneous. Nineteen nonconservative mutations associated with disease, and 10 variations not associated with disease were identified. Ten mutations and three variations not associated with disease were novel. The 13 novel variations make a notable contribution to the approximately 70 known variations in the gene. CYP1B1 mutations were identified in 70% of the patients. The four most common mutations were G61E, R368H, R390H, and R469W, which together constituted 76.2% of the CYP1B1 mutated alleles found. Six unique core SNP haplotypes were identified, four of which were common to the patients with and without CYP1B1 mutations and controls studied. Three SNP blocks determined the haplotypes. Comparison of haplotypes with those of other populations suggests a common origin for many of the mutations.
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Bayat B, Houshmand M, Sanati MH, Moin M, Panahi MSS, Aleyasin SA, Isaian A, Farhoodi A. Use of D11S2179 and D11S1343 as markers for prenatal diagnosis of ataxia telangiectasia in Iranian patients. Arch Med Res 2007; 38:803-5. [PMID: 17845903 DOI: 10.1016/j.arcmed.2007.04.008] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2006] [Accepted: 04/24/2007] [Indexed: 10/23/2022]
Abstract
Ataxia telangiectasia (AT) is an autosomal recessive disorder with an estimated prevalence of 1/40,000 to 1/100,000 in reported populations. There is a 25% possibility for having an affected child when parents are carriers for the ATM gene mutation. There is no cure available for this disease and prenatal testing is strongly recommended for prevention of this disease. Although the preferred method is the direct mutation analysis of the ATM gene, the large size of the ATM gene with 63 exons and the large number of possible mutations in patients considerably limit efficiency of mutation analysis as a diagnostic choice. Indirect method is a better tool when parents are not carriers of founder mutation and pass different mutations to their children. Indirect molecular diagnosis using ATM-related molecular markers facilitates prenatal diagnosis of AT children. In this study, four molecular markers: D11S2179, D11S1787, D11S535, D11S1343 are genotyped in 19 unrelated families from different regions of Iran. Those markers are amplified using extracted sequence primers from the Gene Bank with their described PCR conditions. Amplified products were separated using denaturing PAGE gels, and data were analyzed to detect their pattern of inheritance in each family. In all families, segregation of alleles was according to Mendelian inheritance, and affected chromosomes were distinguishable from unaffected ones. All carriers and affected patients were diagnosed accurately. Thus, this method is effectively useful in prenatal diagnosis of AT.
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Affiliation(s)
- Behnaz Bayat
- Department of Medical Genetics, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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Bayat O, Kilic O, Bayat B, Anil M, Akarsu H, Poole C. Electrokinetic dewatering of Turkish glass sand plant tailings. Water Res 2006; 40:61-6. [PMID: 16380151 DOI: 10.1016/j.watres.2005.10.021] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2003] [Revised: 07/18/2005] [Accepted: 10/18/2005] [Indexed: 05/05/2023]
Abstract
In this study, the dewatering of glass sand plant tailings from Mersin, Turkey was investigated using an electrokinetic technique. The particle size (d(80)) of the solid waste material tested was less than 0.020 mm and consisted mainly of silica, orthoclase, alumina, potassium and iron oxides. In current plant practice, Larox high-pressure filters are used to produce a filter cake containing 22-25% moisture. As an alternative, a laboratory-scale dewatering pond using an electrokinetic technique was designed and a final product (cake) containing 34% moisture was obtained after 24h treatment using 14.6 V direct current applied for 40 min. When the treatment continued up to 48 h, a firm-to-hard cake was produced.
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Affiliation(s)
- O Bayat
- Mining Engineering Department, Cukurova University, Balcali, 01330 Adana, Turkey.
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Govaerts AS, Guillaume T, André M, Bayat B, Feyens AM, Hawley TS, Fong AZ, Hawley RG, Symann M. Retroviral-mediated transfer of genes encoding interleukin-2 and interleukin-12 into fibroblasts increases host antitumor responsiveness. Cancer Gene Ther 1999; 6:447-55. [PMID: 10505855 DOI: 10.1038/sj.cgt.7700064] [Citation(s) in RCA: 6] [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] [Indexed: 11/09/2022]
Abstract
The transfer of genes encoding cytokines into tumor cells has emerged as a new strategy to increase in vivo host reactivity to a variety of tumors. Because gene transfer into tumor cells cannot be easily applied in the clinical setting, we have developed an experimental model of gene transfer into fibroblasts and examined the capacity of these engineered cells to elicit an antitumor immune response. Interleukin-12 (IL-12) is a heterodimeric cytokine with pleiotropic activities presenting strong antitumor and antimetastatic effects in murine models. A bicistronic retroviral vector was constructed that contained the cDNAs encoding both chains (p40 and p35) of murine IL-12 separated by an internal ribosomal entry site sequence. Syngeneic cutaneous fibroblasts obtained from newborn mice and transduced to secrete either IL-12 or IL-2 were injected subcutaneously with B16F0 or B16F1 melanoma cells. The time of tumor occurrence and overall survival of mice were significantly prolonged when B16F1 cells were coinjected with cytokine-producing fibroblasts compared with B16F1 alone or B16F1 together with unmanipulated fibroblasts. Systemic effects were seen in the mice injected with either IL-2- or IL-12-secreting fibroblasts, with the highest proliferation capability and interferon-gamma production observed in vitro from splenocytes from recipients of IL-2-secreting fibroblasts. Injection of IL-2-secreting fibroblasts or coinjection of IL-2- and IL-12-producing fibroblasts resulted in a significant increase of survival in the B16F0 model; in some cases, complete disease eradication was observed. These results suggest that cutaneous fibroblasts represent a target of choice for gene transfer and would be useful in the treatment of minimal residual disease in humans.
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Affiliation(s)
- A S Govaerts
- Laboratory of Experimental Oncology and Hematology, Catholic University of Louvain, Brussels, Belgium
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Machiels JP, Govaerts AS, Guillaume T, Bayat B, Feyens AM, Lenoir E, Goeminne JC, Cole S, Deeley R, Caruso M, Bank A, Symann M, D'Hondt V. Retrovirus-mediated gene transfer of the human multidrug resistance-associated protein into hematopoietic cells protects mice from chemotherapy-induced leukopenia. Hum Gene Ther 1999; 10:801-11. [PMID: 10210147 DOI: 10.1089/10430349950018553] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [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: 11/12/2022] Open
Abstract
Utilization of chemotherapy for the treatment of tumors is mainly limited by its hematological toxicity. Because of the low-level expression of drug resistance genes, transduction of hematopoietic progenitors with multidrug resistance 1 (MDR1) or multidrug resistance-associated protein (MRP) genes should provide protection from chemotherapeutic agent toxicity. Successful transfer of drug resistance genes into hematopoietic cells may allow the administration of higher doses of chemotherapy and, thus, increase regression of chemosensitive tumors. The interest in the use of MRP as an alternative to MDR1 for bone marrow protection lies in its different modulation. This would allow, in the same patient, the use of MDR1 reversal agents to decrease MDR1 tumor resistance without reversing bone marrow (BM) protection of the MRP-transduced hematopoietic cells, since MRP expression is not reversed by these agents. We have constructed MRP-containing retroviral vectors using the phosphoglycerate kinase promoter and generated ecotropic producer cells. Lethally irradiated mice were engrafted with BM cells transduced by coculture with MRP producer cells. Evidence of long-term (9 months) gene transfer was provided by PCR of peripheral blood from MRP-transduced mice. Southern blot analysis confirmed the integrity of the provirus in the MRP-transduced mice. Long-term MRP expression (>5 months) was detected by RT-PCR and fluorescence-activated cell sorting of blood from living mice. High-level expression of MRP in murine hematopoietic cells reduces doxorubicin-induced leukopenia and mortality. Furthermore, we show in vivo selection of MRP-transduced cells following doxorubicin administration, with better and more significant chemoprotection after the second chemotherapy cycle. These data indicate that MRP retroviral gene transfer may be useful for chemoprotection and selection.
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Affiliation(s)
- J P Machiels
- Laboratory of Experimental Hematology and Oncology, Université Catholique de Louvain, Brussels, Belgium
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Shafiee A, Jamali F, Bayat B. Clinical significance of total serum IgE determination in screening of Iranian Russian thistle pollen hypersensitive individuals. Clin Allergy 1980; 10:111-4. [PMID: 7363443 DOI: 10.1111/j.1365-2222.1980.tb02087.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Total serum IgE concentrations of normal and Russian thistle (Salsola pestifer) pollen hypersensitive individuals were determined in an Iranian population, using the solid phase radioimmunoassay technique. The mean values were 963.7 and 885.3 ng/ml, respectively, which are much higher than normal values given for non-Iranian populations. In addition, no significant differences were found between observed values (P = 0.1) for normal and allergic individuals. The effect of common parasitic infestation in the Iranian population in causing high serum IgE levels is discussed.
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