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Santoso S, Gunawan A, Sumantri C, Arifiantini RI, Herdis H. Differential Expressions of Protamine 1 (PRM1) and Protamine 2 (PRM2) Genes as Markers of Semen Quality in Pasundan Bulls. Trop Anim Sci J 2022. [DOI: 10.5398/tasj.2022.45.4.423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Santoso S, Bakhri S, Situmorang J. A Bayesian Network Approach to Estimating Software Reliability of RSG-GAS Reactor Protection System. Atom Indo 2019. [DOI: 10.17146/aij.2019.775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Abstract
SummaryWe report the localization of A, B blood group determinants on intrinsic glycoproteins using anti-A, B IgG antibodies. By radioimmunoprecipitation, anti-A and anti-B precipitated three bands with apparent molecular masses in sodium dodecylsulphate- polyacrylamide gel electrophoresis (SDS-PAGE) of 159, ~ 120 and 85 kDa under non-reduced conditions and 145, ~ 126 and 97 kDa under reduced conditions. In two-dimensional gel electrophoresis (isoelectric focussing/SDS-PAGE) these three bands could be resolved into six spots and fulfilled previously defined citeria for platelet membrane glycoprotein complexes Ia/IIa, Ic’IIIa, Ib/IX and IIb/IIIa. The results were supported by data obtained by an assay employing antibody-specific immobilizatisn of platelet antigens (MAIPA). By this technique, blood group A, B determinants were shown to be immobilized by monoclonal antibodies specific for GPIa, Ic’, IX, IIb/IIIa and strongly by mab specific for GPIIa, but not by mab specific for HLA class I molecules.The more precise localization on platelet glycoproteins was achieved by immunoblotting technique by which blood group A determinants could be assigned to GPs IIa, IIIa and Ib.
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Affiliation(s)
- S Santoso
- The Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Gießen, FR Germany
| | - V Kiefel
- The Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Gießen, FR Germany
| | - C Mueller-Eckhardt
- The Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Gießen, FR Germany
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Abstract
SummaryThe redistribution of platelet glycoproteins (GP) Ib, IIb and IIIa in response to stimulation with human platelet specific alloantibodies, autoantibodies and a quinidine-dependent antibody was investigated using immunofluorescence and a quantitative radioimmunoassay. The platelet GPs carrying the corresponding epitopes were determined using immunoblot technique or radioimmunoprecipitation. In accordance with previous results obtained with murine monoclonal platelet specific antibodies, redistribution upon stimulation with human platelet reactive antibodies was observed only due to reactions with epitopes on GP IIb, IIIa, respectively, but not on GP Ib. We therefore believe that membrane redistribution of human platelets induced by various antibodies is a function of the GP recognized by those antibodies rather than the source of the platelet reactive antibody.
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Affiliation(s)
- S Santoso
- The Institute of Clinical Immunology and Blood Transfusion, Justus-Liebig-University, Gießen, FRG
| | - V Kiefel
- The Institute of Clinical Immunology and Blood Transfusion, Justus-Liebig-University, Gießen, FRG
| | - C Mueller-Eckhardt
- The Institute of Clinical Immunology and Blood Transfusion, Justus-Liebig-University, Gießen, FRG
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Wienzek-Lischka S, Krautwurst A, Fröhner V, Gattenlöhner S, Bräuninger A, Sawazki A, Enzensberger C, Deisting C, Axt-Fliedner R, Santoso S, Sachs U, Bein G. Konservatives, nicht-invasives Management der fetalen und neonatalen Alloimmunthrombozytopenie: Pränatale Genotypisierung mittels Next-Generation-Sequencing (Hochdurchsatzsequenzierung) sowie intravenöse Immunglobulin Therapie. Geburtshilfe Frauenheilkd 2018. [DOI: 10.1055/s-0038-1660602] [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: 10/28/2022] Open
Affiliation(s)
- S Wienzek-Lischka
- Institut für Klinische Immunologie und Transfusionsmedizin, Justus-Liebig-Universität, Gießen, Deutschland
| | - A Krautwurst
- Institut für Klinische Immunologie und Transfusionsmedizin, Justus-Liebig-Universität, Gießen, Deutschland
| | - V Fröhner
- Institut für Klinische Immunologie und Transfusionsmedizin, Justus-Liebig-Universität, Gießen, Deutschland
| | - S Gattenlöhner
- Institut für Pathologie, Justus-Liebig-Universität, Gießen, Deutschland
| | - A Bräuninger
- Institut für Pathologie, Justus-Liebig-Universität, Gießen, Deutschland
| | - A Sawazki
- Zentrum für Pränatalmedizin, Klinik für Gynäkologie und Geburtshilfe, Justus-Liebig-Universität, Gießen, Deutschland
| | - C Enzensberger
- Zentrum für Pränatalmedizin, Klinik für Gynäkologie und Geburtshilfe, Justus-Liebig-Universität, Gießen, Deutschland
| | - C Deisting
- Zentrum für Pränatalmedizin, Klinik für Gynäkologie und Geburtshilfe, Justus-Liebig-Universität, Gießen, Deutschland
| | - R Axt-Fliedner
- Zentrum für Pränatalmedizin, Klinik für Gynäkologie und Geburtshilfe, Justus-Liebig-Universität, Gießen, Deutschland
| | - S Santoso
- Institut für Klinische Immunologie und Transfusionsmedizin, Justus-Liebig-Universität, Gießen, Deutschland
| | - U Sachs
- Institut für Klinische Immunologie und Transfusionsmedizin, Justus-Liebig-Universität, Gießen, Deutschland
| | - G Bein
- Institut für Klinische Immunologie und Transfusionsmedizin, Justus-Liebig-Universität, Gießen, Deutschland
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Knöfler R, Eberl W, Schulze H, Bakchoul T, Bergmann F, Gehrisch S, Geisen C, Gottstein S, Halimeh S, Harbrecht U, Kappert G, Kirchmaier C, Kehrel B, Lösche W, Krause M, Mahnel R, Meyer O, Pilgrimm AK, Pillitteri D, Rott H, Santoso S, Siegemund A, Schambeck C, Scheer M, Schmugge M, Scholl T, Strauss G, Zieger B, Zotz R, Hermann M, Streif W. Diagnose angeborener Störungen der Thrombozytenfunktion. Hamostaseologie 2017; 34:201-12. [DOI: 10.5482/hamo-13-04-0024] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 05/21/2014] [Indexed: 11/05/2022] Open
Abstract
ZusammenfassungAngeborene Störungen der Thrombozytenfunktion sind eine heterogene Gruppe von Erkrankungen, die oft erst bei Auftreten von Blutungen erkannt werden. Im klinischen Bereich haben sich nur wenige Methoden zur Diagnose und Klassifizierung von angeborenen Thrombozytenfunktionsstörungen bewährt. Für eine rationelle Diagnostik ist ein stufenweises Vorgehen empfehlenswert. Anamnese und klinische Untersuchung sind Grundvoraussetzungen. Das von-Willebrand-Syndrom und andere plasmatische Gerinnungsstörungen sollten vor einer spezifischen Thrombozytenfunktionsdiagnostik immer ausgeschlossen werden. Die Bestimmung von Zahl, Größe, Volumen (MPV) und Morphologie der Thrombozyten erlauben Rückschlüsse auf die zu Grunde liegende Störung.Die PFA-100®-Verschlusszeit eignet sich als Screening zum Ausschluss schwerer Thrombozytenfunktionsstörungen. Die Aggrego metrie ermöglicht die Untersuchung zahlreicher Aspekte der Thrombozytenfunktion. Die Durchflusszytometrie ist zur Diagnose von Thrombasthenie Glanzmann, Bernard-Soulier- Syndrom und Freisetzungsstörungen geeignet. Molekulargenetische Untersuchungen können die Verdachtsdiagnose bestätigen oder zum Nachweis nicht beschriebener Defekte verwendet werden. Hier wird die ungekürzte Version der inter -disziplinären Leitlinie* präsentiert.
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Sachs UJ, Santoso S. Bleeding or no bleeding? Anti-endothelial alphaVbeta3 antibodies as a major cause of intracranial haemorrhage in fetal-neonatal alloimmune thrombocytopenia. ACTA ACUST UNITED AC 2017. [DOI: 10.1111/voxs.12401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- U. J. Sachs
- Institute for Clinical Immunology and Transfusion Medicine; Justus Liebig University; Giessen Germany
- Center for Transfusion Medicine and Hemotherapy; University Hospital Giessen and Marburg; Marburg Germany
- German Center for Fetomaternal Incompatibility (DZFI); University Hospital Giessen and Marburg; Giessen Germany
| | - S. Santoso
- Institute for Clinical Immunology and Transfusion Medicine; Justus Liebig University; Giessen Germany
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Salama A, Göttsche B, Vaidya V, Santoso S, Mueller-Eckhardt C. Complement-Independent Lysis of Human Red Blood Cells by
Cold Hemagglutinins. Vox Sang 2017. [DOI: 10.1159/000461824] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Santoso S, Kiefel V, Volz H, Mueller-Eckhardt C. Quantitation of Soluble HLA Class I Antigen in Human Albumin and Immunoglobulin Preparations for Intravenous Use by Solid-Phase Immunoassay. Vox Sang 2017. [DOI: 10.1159/000462159] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Mueller-Eckardt C, Becker T, Weisheit M, Witz C, Santoso S. Neonatal Alloimmune Thrombocytopenia due to
Fetomaternal Zwb Incompatibility. Vox Sang 2017. [DOI: 10.1159/000461398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Kiefel V, Vicariot M, Giovangrandi Y, Kroll H, Böhringer M, Greinacher A, Breitfeld C, Santoso S, Mueller-Eckhardt C. Alloimmunization against ly, a Low-Frequency Antigen on Platelet Glycoprotein Ib/IX as a Cause of Severe Neonatal Alloimmune Thrombocytopenic Purpura. Vox Sang 2017. [DOI: 10.1159/000462848] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Simtong P, Puapairoj C, Leelayuwat C, Santoso S, Romphruk AV. Assessment of HNA alloimmunisation risk in Northeastern Thais, Burmese and Karen. Transfus Med 2017; 28:47-55. [PMID: 28589653 DOI: 10.1111/tme.12431] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Revised: 04/27/2017] [Accepted: 05/17/2017] [Indexed: 01/14/2023]
Abstract
OBJECTIVES This study aimed to determine human neutrophil antigen (HNA) frequency, estimate possible HNA incompatibilities and predict the risk of HNA alloimmunisation in the Northeastern Thai, Burmese and Karen populations. BACKGROUND Alloantibodies against HNA are implicated in a number of clinical conditions, including immune-mediated neutropenia and transfusion reactions. METHODS A total of 400 unrelated healthy Thais, 261 Burmese and 249 Karen was included in this study. DNA samples were typed for HNA-1, -3, -4 and -5 systems using polymerase chain reactions with sequence-specific primers (PCR-SSP). RESULTS In this cohort, HNA-1a was more prevalent than HNA-1b. Accordingly, the possible risk of HNA-1a alloimmunisation against HNA-1a is lower than HNA-1b (0·0802-0·1351 vs 0·2293-0·2497). This is in contrast to the situation reported in Caucasian and African populations. The predicted risk of HNA-3 incompatibility in Thais, Burmese and Karen were 28·09%, 30·66% and 22·77%, respectively. The possible risks of HNA-3a alloimmunisation were 0·0493 in Thais, 0·0608 in Burmese and 0·0196 in Karen, respectively. No individuals were found to be homozygous for HNA-4bb. The probability of developing alloantibodies against HNA-4a was low in these populations and every population in Asia. In contrast, the overall frequency of HNA-5bb homozygous individuals was high in this study, peaking at 0·192. CONCLUSIONS This is the first study that reported the allele frequencies of HNA-1, -3, -4, and -5 in a large sample of healthy unrelated individuals from ethnic Thais, Burmese and Karen. Our results indicated the high possible risk of HNA-1, -3 and -5 alloimmunisation in these populations.
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Affiliation(s)
- P Simtong
- Biomedical Sciences Program, Graduate School, Khon Kaen University, Khon Kaen, Thailand
| | - C Puapairoj
- Blood Transfusion Center, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - C Leelayuwat
- Department of Clinical Immunology and Transfusion Sciences, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, Thailand.,The Centre for Research and Development of Medical Diagnostic Laboratories, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, Thailand
| | - S Santoso
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University Giessen, Giessen, Germany
| | - A V Romphruk
- Blood Transfusion Center, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.,The Centre for Research and Development of Medical Diagnostic Laboratories, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, Thailand
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Wang J, Xia W, Deng J, Xu X, Shao Y, Ding H, Chen Y, Liu J, Chen D, Ye X, Santoso S. Analysis of platelet-reactive alloantibodies and evaluation of cross-match-compatible platelets for the management of patients with transfusion refractoriness. Transfus Med 2017; 28:40-46. [DOI: 10.1111/tme.12423] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 02/27/2017] [Accepted: 04/22/2017] [Indexed: 11/30/2022]
Affiliation(s)
- J. Wang
- Institute of Blood Transfusion; Guangzhou Blood Center; Guangzhou Guangdong China
| | - W. Xia
- Institute of Blood Transfusion; Guangzhou Blood Center; Guangzhou Guangdong China
| | - J. Deng
- Institute of Blood Transfusion; Guangzhou Blood Center; Guangzhou Guangdong China
| | - X. Xu
- Institute of Blood Transfusion; Guangzhou Blood Center; Guangzhou Guangdong China
| | - Y. Shao
- Institute of Blood Transfusion; Guangzhou Blood Center; Guangzhou Guangdong China
| | - H. Ding
- Institute of Blood Transfusion; Guangzhou Blood Center; Guangzhou Guangdong China
| | - Y. Chen
- Institute of Blood Transfusion; Guangzhou Blood Center; Guangzhou Guangdong China
| | - J. Liu
- Institute of Blood Transfusion; Guangzhou Blood Center; Guangzhou Guangdong China
| | - D. Chen
- Institute of Blood Transfusion; Guangzhou Blood Center; Guangzhou Guangdong China
| | - X. Ye
- Institute of Blood Transfusion; Guangzhou Blood Center; Guangzhou Guangdong China
| | - S. Santoso
- Institute of Blood Transfusion; Guangzhou Blood Center; Guangzhou Guangdong China
- Institute for Clinical Immunology and Transfusion Medicine; Justus-Liebig University; Giessen Germany
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Affiliation(s)
- A. Wikman
- Department of Clinical Immunology and Transfusion Medicine; Karolinska University Hospital; Stockholm Sweden
| | - A. Mörtberg
- Department of Clinical Immunology and Transfusion Medicine; Karolinska University Hospital; Stockholm Sweden
| | - U. J. Sachs
- Institute for Clinical Immunology and Transfusion Medicine; Justus Liebig University; Giessen Germany
| | - S. Santoso
- Institute for Clinical Immunology and Transfusion Medicine; Justus Liebig University; Giessen Germany
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Wienzek-Lischka S, Dehl J, Krautwurst A, Fröhner V, Hackstein H, Gattenlöhner S, Bräuninger A, Deisting C, Axt-Fliedner R, Degenhardt J, Santoso S, Sachs U, Bein G. Non-invasive fetal platelet and red cell blood group genotyping with the use of targeted massively parallel sequencing of maternal plasma cell-free DNA. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1593268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Affiliation(s)
- W. Xia
- Institute of Blood Transfusion; Guangzhou Blood Centre; Guangzhou Guangdong China
| | - X. Xu
- Institute of Blood Transfusion; Guangzhou Blood Centre; Guangzhou Guangdong China
| | - Y. Fu
- Institute of Blood Transfusion; Guangzhou Blood Centre; Guangzhou Guangdong China
| | - X. Ye
- Institute of Blood Transfusion; Guangzhou Blood Centre; Guangzhou Guangdong China
| | - N. Tsuno
- Department of Transfusion Medicine; The University of Tokyo; Tokyo Japan
| | - S. Santoso
- Institute for Clinical Immunology and Transfusion Medicine; Justus-Liebig University Giessen; Giessen Germany
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Wienzek-Lischka S, Dehl J, Krautwurst A, Fröhner V, Hackstein H, Gattenlöhner S, Bräuninger A, Deisting C, Axt-Fliedner R, Degenhardt J, Santoso S, Sachs U, Bein G. Nicht invasive, pränatale Genotypisierung erythrozytärer und thrombozytärer Blutgruppenmerkmale aus zellfreier, fetaler DNA mittels Hochdurchsatzsequenzierung (Next-Generation Sequencing, NGS). Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1583773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Xia W, Ye X, Xu X, Chen D, Deng J, Chen Y, Ding H, Shao Y, Wang J, Liu J, Li H, Huang YF, Fu Y, Santoso S. The prevalence of leucocyte alloantibodies in blood donors from South China. Transfus Med 2016; 25:385-92. [PMID: 26876912 DOI: 10.1111/tme.12276] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 09/29/2015] [Accepted: 01/02/2016] [Indexed: 01/23/2023]
Abstract
BACKGROUND Several studies had demonstrated that leucocyte antibodies including anti-human leucocyte antigen (anti-HLA) antibodies (class I and class II) and anti-human neutrophil antigen (anti-HNA) antibodies (HNA-1, -2 and -3) present in the blood products are responsible for transfusion-related acute lung injury (TRALI). Therefore, selection of blood products exclusive of anti-HLA and anti-HNA antibodies may lower the risk of TRALI reaction. However, the prevalence of leucocyte antibodies among blood donors in China is currently not known. STUDY DESIGN AND METHODS Blood samples were collected from 454 male and 560 female donors (143 nulliparous and 417 multiparous female). HLA class I and II antibodies were analyzed by bead assays. Anti-HNA-1 and -2 antibodies were screened by the LABScreen assay (One Lambda Inc.), and HNA-3 were detected by antigen capture assay, and confirmed by the granulocyte agglutination test (GAT). RESULTS Screening of the total cohort showed higher prevalence of HLA antibodies in female compared with male donors (19.64 vs. 4.63%). We found antibodies against HLA class I (13.21%) and HLA class II (11.43%) in 560 female donors. The most frequent antibodies against HLA class I and II in parous females (n = 69) reacted with were A*11 (28.81%), B*07 (42.37%), Cw*07 (20.34%) and DRB1*04 (40.43%) molecules. Among 778 donors (randomly selected from 1014 donors), we found three donors with neutrophil reactive antibodies, two against HNA-2 and one without known specificity. Anti-HNA-3 antibodies were not found so far. CONCLUSION In this study, we found alloimmunization against HLA class I, II and HNA in 4.63, 24.70 and 0.39%, respectively, in our female blood donors, indicating that the use of plasma containing blood products from parous female blood donors without HLA antibodies pre-testing may increase the risk of TRALI reaction. Although immunization against HNA seems to be a rare event in China, further observation is necessary to decide the necessity of HNA antibodies screening in our blood donors.
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Affiliation(s)
- W Xia
- Institute of Blood Transfusion, Guangzhou Blood Center, Guangzhou, China
| | - X Ye
- Institute of Blood Transfusion, Guangzhou Blood Center, Guangzhou, China
| | - X Xu
- Institute of Blood Transfusion, Guangzhou Blood Center, Guangzhou, China
| | - D Chen
- Institute of Blood Transfusion, Guangzhou Blood Center, Guangzhou, China
| | - J Deng
- Institute of Blood Transfusion, Guangzhou Blood Center, Guangzhou, China
| | - Y Chen
- Institute of Blood Transfusion, Guangzhou Blood Center, Guangzhou, China
| | - H Ding
- Institute of Blood Transfusion, Guangzhou Blood Center, Guangzhou, China
| | - Y Shao
- Institute of Blood Transfusion, Guangzhou Blood Center, Guangzhou, China
| | - J Wang
- Institute of Blood Transfusion, Guangzhou Blood Center, Guangzhou, China
| | - J Liu
- Institute of Blood Transfusion, Guangzhou Blood Center, Guangzhou, China
| | - H Li
- Department of Biotechnology, Guangdong Food and Drug Vocational College, Guangzhou, China
| | - Y F Huang
- Department of Surgery, Guangzhou First Municipal People's Hospital Affiliated to Guangzhou Medical College, Guangzhou, China
| | - Y Fu
- Institute of Blood Transfusion, Guangzhou Blood Center, Guangzhou, China
| | - S Santoso
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University, Giessen, Germany
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Xia W, Ye X, Xu X, Ding H, Liu J, Deng J, Chen Y, Shao Y, Wang J, Li H, Fu Y, Santoso S. Two cases of platelet transfusion refractoriness and one case of possible FNAIT caused by antibodies against CD36 in China. Transfus Med 2015; 24:254-6. [PMID: 25124074 DOI: 10.1111/tme.12137] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2013] [Revised: 06/19/2014] [Accepted: 06/26/2014] [Indexed: 11/30/2022]
Affiliation(s)
- W Xia
- Institute of Blood Transfusion, Guangzhou Blood Center
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Fontão-Wendel R, Bertrand G, Chong W, Sachs UJ, Kaplan C, Tsuno N, Santoso S. Report on the 16th international society of blood transfusion platelet immunology workshop. ACTA ACUST UNITED AC 2014. [DOI: 10.1111/voxs.12110] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - G. Bertrand
- Institut National de la Transfusion Sanguine; Paris France
| | - W. Chong
- National Health Service Blood and Transplant (NHSBT) Colindale; London UK
| | - U. J. Sachs
- Institute for Clinical Immunology and Transfusion Medicine; Justus Liebig University; Giessen Germany
| | - C. Kaplan
- Institut National de la Transfusion Sanguine; Paris France
| | - N. Tsuno
- Department of Transfusion Medicine; The University of Tokyo; Tokyo Japan
| | - S. Santoso
- Institute for Clinical Immunology and Transfusion Medicine; Justus Liebig University; Giessen Germany
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Asmarinah, Dharma R, Ritchie NK, Rahayu S, Putricahya E, Santoso S. Human platelet-specific antigen frequencies in Indonesian population. Transfus Med 2013; 23:250-3. [PMID: 23617356 DOI: 10.1111/tme.12039] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [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: 01/29/2013] [Revised: 02/14/2013] [Accepted: 03/18/2013] [Indexed: 11/28/2022]
Abstract
BACKGROUND Alloantibodies against human platelet antigens (HPAs) are responsible for the development of alloimmune thrombocytopenia including platelet transfusion refractoriness (PTR) and neonatal alloimmune thrombocytopenia (NAIT). Therefore, transfusion of HPA-compatible platelets is of importance for the management of these diseases. AIM Determination of the allele frequency of the major HPA systems for Indonesian blood donors and the development of the first HPA-typed donor registry in Indonesia. METHODS DNA derived from 500 Indonesian healthy blood donors was genotyped for HPA-1 to HPA-6 and HPA-15 alleles by the use of polymerase chain reaction sequence-specific primer method. RESULTS The gene frequencies of the rare allelic variants HPA-1b, -2b, -3b, -4b, -5b, -6b and -15b were 0·023, 0·060, 0·493, 0·052, 0·032, 0·044 and 0·049, respectively. However, donors homozygous for the HPA-1b, -2b and -6b were not found in this cohort, indicating that the risks of alloimmunisation caused by incompatibility of these three HPA systems are extremely low. In contrast, alloimmunisation against HPA-3, -4, -5 and -15 systems is anticipated. CONCLUSION The development of an HPA-genotyped registry for donors homozygous for HPA-1b, -2b and -6b is desired for the optimum management of PTR patients and children with NAIT.
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Affiliation(s)
- Asmarinah
- Department of Medical Biology, Faculty of Medicine, Universitas Indonesia.
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Matsuhashi M, Tsuno NH, Ikeda T, Mishima Y, Watanabe-Okochi N, Santoso S, Tozuka M, Takahashi K. The frequencies of SLC44A2 alleles among the Japanese population. Tissue Antigens 2013; 81:227-228. [PMID: 23510419 DOI: 10.1111/tan.12091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
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Abstract
BACKGROUND AND OBJECTIVES The aim of the 15th ISBT Platelet Immunology Workshop was to evaluate the detection of free platelet-reactive autoantibodies from ITP patients by the use of a standardized MAIPA protocol, to compare sensitivity and specificity of antibody detection for anti-HPA-1a and serologically difficult-to-assess antibodies against HPA-3, to identify whether anti-HPA-1a titration results can be compared between laboratories, and to evaluate HPA genotyping methods. MATERIALS AND METHODS Workshop materials were shipped from the organizing laboratory in Giessen, Germany. Thirty laboratories from 19 countries participated. RESULTS Results for the detection of autoantibodies differed greatly between the laboratories and no consensus was reached for one of the two sera. Detection and titration of antibodies against HPA-1a, in contrast, gave largely congruent results. Serologically difficult-to-assess antibodies recognizing HPA-3a and HPA-3b were not detected by many laboratories. For genotyping, good agreement was achieved. CONCLUSIONS Detection of HPA-1a antibodies, titration of anti-HPA-1a, and HPA genotyping are well performed in most participating laboratories. The workshop has identified two specific areas with room and need for improvement: the detection of autoantibodies and the detection of HPA-3 alloantibodies. Recommendations of the Working Party on techniques that can help to overcome these problems are desirable.
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Affiliation(s)
- U J Sachs
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany.
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Matsuhashi M, Tsuno NH, Kawabata M, Mishima Y, Okochi N, Santoso S, Tozuka M, Takahashi K. The frequencies of human neutrophil alloantigens among the Japanese population. ACTA ACUST UNITED AC 2012; 80:336-40. [PMID: 22776008 DOI: 10.1111/j.1399-0039.2012.01930.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 06/14/2012] [Accepted: 06/21/2012] [Indexed: 12/22/2022]
Abstract
Human neutrophil antigens (HNAs) play an important role in a variety of clinical conditions including immune-mediated neutropenia, non-hemolytic transfusion reactions, and transfusion-related acute lung injury. The aim of this study was to investigate the frequency distribution of HNAs-1 to -5 among the Japanese population. We analyzed samples from 570 healthy Japanese by molecular and serologic techniques to estimate the gene frequencies of HNAs-1 to -5. DNA samples were obtained and typed for the HNA-1 (n = 523), -3 (n = 570), -4 (n = 570), and -5 (n = 508), by molecular techniques. The HNA-1 genotype was determined by using a commercial polymerase chain reaction-reverse sequence-specific oligonucleotide probes (PCR-rSSOP) kit. The HNA-3 to -5 genotypes were determined by the PCR-sequence specific primer (PCR-SSP), previously described, with a small modification. The HNA-2a phenotype was determined in 301 donors by granulocyte immunofluorescence test. In Japanese, the gene frequencies of HNA-1a, -1b, and -1c were 0.623, 0.377, and 0.000, respectively. The frequency of HNA-2a phenotype was 0.987, and the gene frequencies of HNA-3a and -3b were 0.654 and 0.346, respectively. HNA-4a and -4b were found at 1.000 and 0.000, respectively, and HNA-5a and -5b at 0.840 and 0.160, respectively. We describe, for the first time, the frequencies of all HNAs (HNA-1 to -5) among the Japanese population. This study will be helpful for the prediction of the risk of alloimmunization to HNA, especially to determine the risk of HNA alloantibody production by transfusion of HNA incompatible blood and feto-maternal incompatibility.
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Affiliation(s)
- M Matsuhashi
- Department of Transfusion Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
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Mulyastuti Y, Santosaningsih D, Hamid AA, Santoso S. Carriage of Corynebacterium sp. among contacts diphtheria in a low resource area in Indonesia (interim report). Int J Infect Dis 2012. [DOI: 10.1016/j.ijid.2012.05.915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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28
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Arnold DM, Santoso S, Greinacher A. Recommendations for the implementation of platelet autoantibody testing in clinical trials of immune thrombocytopenia. J Thromb Haemost 2012; 10:695-7. [PMID: 22332994 PMCID: PMC4854629 DOI: 10.1111/j.1538-7836.2012.04664.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- D M Arnold
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
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Vannier C, Behnisch W, Bartsch I, Sandrock K, Ertle F, Schmidt K, Busse A, Superti-Furga A, Kulozik A, Santoso S, Zieger B. Novel Homozygous Mutation (c.175delG) in Platelet GlycoproteinITGA2BGene as Cause of Glanzmann's Thrombasthenia Type I. Klin Padiatr 2010; 222:150-3. [DOI: 10.1055/s-0030-1249064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Xia WJ, Ye X, Tian LW, Xu XZ, Chen YK, Luo GP, Bei CH, Deng J, Santoso S, Fu Y. Establishment of platelet donor registry improves the treatment of platelet transfusion refractoriness in Guangzhou region of China. Transfus Med 2010; 20:269-74. [DOI: 10.1111/j.1365-3148.2010.00995.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bakchoul T, Giptner A, Najaoui A, Bein G, Santoso S, Sachs UJH. Prospective evaluation of PF4/heparin immunoassays for the diagnosis of heparin-induced thrombocytopenia. J Thromb Haemost 2009; 7:1260-5. [PMID: 19422442 DOI: 10.1111/j.1538-7836.2009.03465.x] [Citation(s) in RCA: 113] [Impact Index Per Article: 7.5] [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: 11/30/2022]
Abstract
BACKGROUND Heparin-induced thrombocytopenia (HIT) is an adverse complication of heparin caused by HIT antibodies that recognize platelet factor 4-heparin (PF4/hep) complexes leading to platelet activation. Several methods are available for the identification of HIT antibodies. OBJECTIVES To evaluate the clinical usefulness of different antigen-binding assays for detection of antibodies against PF4/hep complexes in a prospective study. PATIENTS/METHODS A prospective cohort of 500 surgical and medical patients suspected of having HIT was evaluated. The laboratory assessment included particle gel immunoassay (PaGIA), polyspecific ELISA recognizing IgG, IgM and IgA antibodies (Poly-ELISA), IgG-specific ELISA (IgG-ELISA) and the HIPA test. The pretest probability of HIT was determined using the 4T's model. Positive and negative predictive values (PPV, NPV) of each immunoassay were determined depending upon the heparin-induced platelet activation (HIPA) results and the clinical scoring. The operating characteristics of each immunoassay were determined using the receiver-operation characteristic (ROC) curve. RESULTS Platelet-activating antibodies were identified in 35/500 patients, all of whom had intermediate to high clinical probability. PF4/hep antibodies were detected in 124, 86 and 90 sera using Poly-ELISA (PPV = 28), IgG-ELISA (PPV = 40.6) and PaGIA (PPV = 36.6). NPV was 100% for Poly- and IgG-ELISA, but only 99.5% for PaGIA. ROC analysis revealed that PaGIA is less informative than ELISA. The IgG-ELISA provides better diagnostic information than the other assays. In addition, there is a clear correlation between optical density (OD) value and the probability of having HIT. CONCLUSIONS Our observation indicates that an IgG-ELISA provides the best diagnostic information of all antigen-binding assays.
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Affiliation(s)
- T Bakchoul
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
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Heine O, Vahrson H, Santoso S, Leib P, Pabst W. Einfluß von Thymopentin und Isoprinosin auf Parameter der zellulären Immunität bei Patientinnen mit Ovarialkarzinom. Oncol Res Treat 2009. [DOI: 10.1159/000216965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Naidu S, Wijayanti N, Santoso S, Kietzmann T, Immenschuh S. An atypical NF-kappa B-regulated pathway mediates phorbol ester-dependent Heme oxygenase-1 gene activation in monocytes. Cell Commun Signal 2009. [PMCID: PMC4291764 DOI: 10.1186/1478-811x-7-s1-a6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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34
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Bessos H, Matviyenko M, Brown P, Husebekk A, Killie M, Seghatchian J, Santoso S, Urbaniak S. What’s happening – Probing of HPA-1a antigen–antibody interaction by surface plasmon resonance technology. Transfus Apher Sci 2008; 39:179-82. [DOI: 10.1016/j.transci.2008.06.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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35
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Lohmeyer J, Hadam M, Santoso S, Förster W, Schulz A, Pralle H. Establishment and characterization of a permanent human IgA2/kappa myeloma cell line. Br J Haematol 2008. [DOI: 10.1111/j.1365-2141.1988.00321.x-i1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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36
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Stafford P, Garner SF, Huiskes E, Kaplan C, Kekomaki R, Santoso S, Tsuno NH, Watkins NA, Ouwehand WH. Three novel beta3 domain-deletion peptides for the sensitive and specific detection of HPA-4 and six low frequency beta3-HPA antibodies. J Thromb Haemost 2008; 6:376-83. [PMID: 18031296 DOI: 10.1111/j.1538-7836.2008.02843.x] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Antibodies against human platelet antigens (HPA) are clinically important in fetal-maternal alloimmune thrombocytopenia, refractoriness to platelet transfusions and post-transfusion purpura. Of the 16 HPAs, nine are located on the beta3 subunit of the alphaIIb beta3 integrin. Antibody detection is generally based on platelet-derived alphaIIb beta3 from HPA-genotyped donors. Recombinant allelic beta3 peptides, expressed at high levels would improve consistency in antibody detection, but the expression of soluble and monomeric integrins expressing complex dependent epitopes has previously proved challenging. OBJECTIVES We aimed to generate three recombinant beta3 peptides for the detection of antibodies against HPA-4, HPA-8bw and five of the six remaining low frequency beta3 alloantigens. METHODS The removal of the specificity-determining loop from the betaA domain and fusion of truncated beta3 to calmodulin was exploited to obtain expression of monomeric protein. Using site-directed mutagenesis, the mutations for HPA-4b and HPA-8bw were introduced in the ITGB3*001 haplotype. A third peptide for the detection of antibodies against HPA coded by non-synonymous single nucleotide polymorphisms of low frequency was generated by the introduction of five mutations forming the basis of HPA-6bw, -7bw, -10bw, -11bw, and -16bw antigens. RESULTS Reactivity of the three peptides with beta3-specific murine monoclonal antibodies and human HPA-1a phage antibodies confirmed the structural integrity of the recombinant fragments, and reactivity with a unique panel of polyclonal anti-HPA sera confirmed expression of the relevant HPA epitopes. CONCLUSIONS These data demonstrate that beta3 integrin domain-deletion fragments are suitable molecular targets for HPA antibody detection.
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MESH Headings
- Animals
- Antibodies, Monoclonal/immunology
- Antigen-Antibody Reactions
- Antigens, Human Platelet/chemistry
- Antigens, Human Platelet/genetics
- Antigens, Human Platelet/immunology
- Blood Platelets/metabolism
- Epitopes/chemistry
- Epitopes/immunology
- Female
- Humans
- Infant, Newborn
- Integrin beta3/chemistry
- Integrin beta3/genetics
- Integrin beta3/immunology
- Isoantibodies/blood
- Isoantibodies/chemistry
- Isoantibodies/immunology
- Mice
- Models, Molecular
- Mutagenesis, Site-Directed
- Platelet Glycoprotein GPIIb-IIIa Complex/chemistry
- Platelet Glycoprotein GPIIb-IIIa Complex/immunology
- Polymorphism, Single Nucleotide
- Pregnancy
- Protein Binding
- Protein Conformation
- Protein Interaction Mapping
- Protein Structure, Tertiary
- Recombinant Fusion Proteins/immunology
- Sequence Deletion
- Thrombocytopenia, Neonatal Alloimmune/diagnosis
- Thrombocytopenia, Neonatal Alloimmune/immunology
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Affiliation(s)
- P Stafford
- Department of Haematology, University of Cambridge and National Health Service Blood and Transplant, Cambridge, UK
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37
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Socher I, Kroll H, Jorks S, Santoso S, Sachs UJH. Heparin-independent activation of platelets by heparin-induced thrombocytopenia antibodies: a common occurrence. J Thromb Haemost 2008; 6:197-200. [PMID: 17956599 DOI: 10.1111/j.1538-7836.2007.02815.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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38
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Stafford P, Garner SF, Huiskes E, Kaplan C, Kekomaki R, Santoso S, Tsuno NH, Watkins NA, Ouwehand WH. Three novel beta3 domain-deletion peptides for the sensitive and specific detection of HPA-4 and six low frequency beta3-HPA antibodies. J Thromb Haemost 2007; 6:376-83. [PMID: 18031296 DOI: 10.1111/j.1538-7836.2007.02843.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Antibodies against human platelet antigens (HPA) are clinically important in fetal-maternal alloimmune thrombocytopenia, refractoriness to platelet transfusions and post-transfusion purpura. Of the 16 HPAs, nine are located on the beta3 subunit of the alphaIIb beta3 integrin. Antibody detection is generally based on platelet-derived alphaIIb beta3 from HPA-genotyped donors. Recombinant allelic beta3 peptides, expressed at high levels would improve consistency in antibody detection, but the expression of soluble and monomeric integrins expressing complex dependent epitopes has previously proved challenging. OBJECTIVES We aimed to generate three recombinant beta3 peptides for the detection of antibodies against HPA-4, HPA-8bw and five of the six remaining low frequency beta3 alloantigens. METHODS The removal of the specificity-determining loop from the betaA domain and fusion of truncated beta3 to calmodulin was exploited to obtain expression of monomeric protein. Using site-directed mutagenesis, the mutations for HPA-4b and HPA-8bw were introduced in the ITGB3*001 haplotype. A third peptide for the detection of antibodies against HPA coded by non-synonymous single nucleotide polymorphisms of low frequency was generated by the introduction of five mutations forming the basis of HPA-6bw, -7bw, -10bw, -11bw, and -16bw antigens. RESULTS Reactivity of the three peptides with beta3-specific murine monoclonal antibodies and human HPA-1a phage antibodies confirmed the structural integrity of the recombinant fragments, and reactivity with a unique panel of polyclonal anti-HPA sera confirmed expression of the relevant HPA epitopes. CONCLUSIONS These data demonstrate that beta3 integrin domain-deletion fragments are suitable molecular targets for HPA antibody detection.
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Affiliation(s)
- P Stafford
- Department of Haematology, University of Cambridge and National Health Service Blood and Transplant, Cambridge, UK
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Keiper T, Santoso S, Nawroth PP, Orlova V, Chavakis T. The role of junctional adhesion molecules in cell-cell interactions. Histol Histopathol 2005; 20:197-203. [PMID: 15578438 DOI: 10.14670/hh-20.197] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cell-cell-interactions are important for the regulation of tissue integrity, the generation of barriers between different tissues and body compartments thereby providing an effective defence against toxic or pathogenic agents, as well as for the regulation of inflammatory cell recruitment. Intercellular interactions are regulated by adhesion receptors on adjacent cells which upon extracellular ligand binding mediate intracellular signals. In the vasculature, neighbouring endothelial cells interact with each other through various adhesion molecules leading to the generation of junctional complexes like tight junctions (TJs) and adherens junctions (AJs) which regulate both leukocyte endothelial interactions and paracellular permeability. In this context, emerging evidence points to the importance of the family of junctional adhesion molecules (JAMs), which are localized in tight junctions of endothelial and epithelial cells and are implicated in the regulation of both leukocyte extravasation as well as junction formation and permeability.
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Affiliation(s)
- T Keiper
- Department of Internal Medicine I, University Heidelberg, D-69120 Heidelberg, Germany
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41
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Abstract
Antibodies to human neutrophil alloantigens (HNA) can cause immune-mediated neutropenias and transfusion complications. The diagnosis of antibodies to the HNA-5a (Ond) isoform of the alphaLbeta2 integrin is hampered by the lack of reliable methods for HNA-5a antigen typing. We have devised a polymerase chain reaction sequence-specific primer method (PCR-SSP) and used it to determine the HNA-5a gene frequencies in 320 individuals from different ethnicities. 15.3% were found to be HNA-5a negative, with no significant deviation between the populations. Results of HNA-5a genotyping were in accordance with phenotyping. Availability of HNA-5a PCR-SSP will facilitate the diagnosis of Ond antibody-mediated clinical conditions.
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Affiliation(s)
- U J H Sachs
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany.
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42
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Renner F, Santoso S, Müller-Steinhardt M, Fricke L, Bein G. Association of HLA-DR Antibodies and Graft Rejection in Renal Transplantation: Posttransplant Analysis Using the Monoclonal Antibody-Specific Immobilization of Leukocyte Antigens Assay (MAILA). Transfus Med Hemother 2004. [DOI: 10.1159/000081190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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43
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Kiefel V, Santoso S. Alloantigene auf Thrombozyten. Transfusionsmedizin 2004. [DOI: 10.1007/978-3-662-10597-9_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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44
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Metcalfe P, Watkins NA, Ouwehand WH, Kaplan C, Newman P, Kekomaki R, De Haas M, Aster R, Shibata Y, Smith J, Kiefel V, Santoso S. Nomenclature of human platelet antigens. Vox Sang 2003; 85:240-5. [PMID: 14516468 DOI: 10.1046/j.1423-0410.2003.00331.x] [Citation(s) in RCA: 165] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- P Metcalfe
- Division of Haematology, National Institute for Biological Standards and Control, South Mimms, Potters Bar, UK.
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Affiliation(s)
- N. Weitbrecht
- TU Berlin, Institut für Chemie, Straße des 17. Juni 124, D‐10623 Berlin
| | - M. Kratzat
- TU Berlin, Institut für Chemie, Straße des 17. Juni 124, D‐10623 Berlin
| | - S. Santoso
- TU Berlin, Institut für Chemie, Straße des 17. Juni 124, D‐10623 Berlin
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Santoso S, Kunicki T. Platelet receptor polymorphisms and thrombotic risk. Ital Heart J 2001; 2:811-5. [PMID: 11770864] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Plaque rupture and/or endothelial damage lead to exposure of von Willebrand factor and collagen which facilitate the adhesion of circulating platelets via glycoprotein Ib-IX-V and the integrin alpha2 beta1, respectively, to the damaged vessel wall. This process activates the platelet and leads to a conformational change of a second integrin alphaIIb beta3 that facilitates fibrinogen binding and platelet aggregation. Thrombin generated at the blood-plaque interface converts fibrinogen to fibrin, which stabilizes thrombus growth. Therefore, any genetic differences that might alter surface expression or activity of these receptors could influence risk for adverse outcomes as a result of the haemostatic process. In the last 5 years, there has been a rapid accumulation of the literature concerning the relationship between genetic variations in platelet glycoproteins and risk for coronary heart disease. In this chapter, we present a comprehensive review of the impact of platelet receptor polymorphisms and thrombotic risk.
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Affiliation(s)
- S Santoso
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University Giessen, Germany.
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47
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Perrault C, Moog S, Rubinstein E, Santer M, Baas MJ, de la Salle C, Ravanat C, Dambach J, Freund M, Santoso S, Cazenave JP, Lanza F. A novel monoclonal antibody against the extracellular domain of GPIbbeta modulates vWF mediated platelet adhesion. Thromb Haemost 2001; 86:1238-48. [PMID: 11816713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
GPIbbeta is disulfide-linked to GPIbalpha to form GPIb, a platelet receptor for von Willebrand factor (vWF). GPIb is in turn non covalently linked to GPIX and GPV to form the GPIb/V/IX complex. Apart from its contribution to controlling surface expression of the complex, the exact function of GPIbbeta is not well established due to a lack of suitable ligands or antibodies. The present report describes a monoclonal antibody (RAM.1) that labeled the 26 kDa GPIbbeta subunit on western blots and coprecipitated the three subunits of the GPIb/IX complex from lysates of platelets and transfected CHO and K562 cells. RAM.1 bound to GPIbbeta deleted of its intracellular domain whereas Gi27, directed against intracellular GPIbbeta, did not. Using synthetic peptides, the RAM.1 epitope was mapped to a putative cysteine loop within the COOH-terminal leucine-rich flanking region. In functional assays, RAM.1 had no effect on platelet aggregation induced by ADP, collagen or thrombin, but inhibited ristocetin induced platelet agglutination and botrocetin induced vWF binding. RAM.1 inhibited adhesion of GPIb/V/IX transfected K562 cells to a vWF matrix under flow, increased their rolling velocity and decreased the resistance of cells to detachment at high shear. This study suggests a role of GPIbbeta in modulating the adhesive properties of GPIb/V/IX and describes a useful tool to analyze the exact functions of GPIbbeta.
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Affiliation(s)
- C Perrault
- INSERM U.311, Etablissement Français du Sang-Alsace, Strasbourg, France
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Santoso S, Kiefel V. Human platelet alloantigens. Wien Klin Wochenschr 2001; 113:806-13. [PMID: 11732116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Antibody formation against alloantigens of the human platelet membrane is responsible for clinical syndromes and transfusion related conditions as neonatal alloimmune thrombocytopenia (NAIT), post-transfusion purpura (PTP), platelet transfusion refractoriness (PTR) and passive alloimmune thrombocytopenia. Moreover, rare cases of alloimmune reactions involving platelets have been observed after transplantation of hematopoietic stem cells. Among alloantigens of the platelet membrane shared with other cells (type I alloantigens) are the glycoconjugates of the ABO system and class I human leukocyte antigen (HLA) antigens. Antibodies against these structures are responsible for PTR and for febrile nonhemolytic transfusion reactions. Antibodies against type II antigens (formerly termed "platelet specific antigens") have been observed in NAIT, PTP and passive alloimmune thrombocytopenia. ABH antigens have been identified on intrinsic platelet membrane glycoproteins. Moreover, it is now clear that HLA class I antigens are an integral part of the platelet membrane. The quantity of both HLA and ABH-antigen expression on the platelet membrane varies considerably. Single point mutations account for almost all platelet specific alloantigens, but most antigenic determinants seem to depend upon glycoprotein conformation: generally, platelet specific alloantibodies fail to recognize synthetic peptides encompassing the polymorphic residues. Restriction fragment polymorphism analysis and allele-specific PCR have been implemented for genotyping of platelet alloantigens in many laboratories. Antigen specific assays using monoclonal antibodies (MAIPA, immunobead assay) became de facto standard for diagnosis of platelet antibodies in serum/plasma samples. It can be expected that innovative techniques as human alloantibody fragments produced by phage display technique and the production of recombinant antigens will allow rapid and reliable phenotyping and antibody detection in the future.
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Affiliation(s)
- S Santoso
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University Giessen, Germany.
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Abstract
The immunization against alloantigens present on platelets, granulocytes and red blood cells (RBCs) is responsible for various clinical syndromes. Since the molecular basis of these antigens has become clear during the last decade, genotyping is nowadays used in several laboratories. However, many DNA-based techniques still have to be evaluated. We therefore organized a workshop on the genotyping of the most relevant alloantigens on platelets and granulocytes as well as on selected RBC alleles. DNA was isolated from peripheral blood lymphocytes or from B-lymphoblastoid cell lines (B-LCL). We distributed samples for the identification of platelet (n = 7), granulocyte (n = 6) and RBC (n = 4) polymorphisms, respectively. There were 33 institutions in Germany, Austria and Switzerland, which participated in at least one part of the workshop. Twenty-four laboratories reported results on HPA-1, and 23 laboratories on HPA-2, -3, and -5 typing. In addition, five laboratories typed for HPA-4 and -6. The HNA-1a/b (NA1/NA2) alleles were identified by eight laboratories, one of which also typed for HNA-1c (SH). The most frequent genes of the ABO (A1, B, O) and Rh (D, C, c, E, e) systems were typed by 12 participating laboratories, and an additional four laboratories restricted their RBC typing to the RHD gene. The typing technique mainly used for all three cell lineages was the polymerase chain reaction with sequence-specific primers. Other techniques were restriction fragment length analysis, oligonucleotide ligation assay, enzyme-linked mini-sequence assay or direct sequence analysis. The following typing errors were observed: HPA: 15/1442 (1.0%), HNA: 4/108 (3.7%), ABO: 5/96 (5.2%) RH 1/320 (0.3%). Our workshop demonstrated the existence of a number of reliable techniques for the genotyping of blood cell alloantigens and a high standard in the participating laboratories. In addition, we could show the usefulness of B-LCL as a source of reference DNA. However, the 5.2% rate of mistyping in the ABO system demonstrated that further efforts are needed to improve the precision of the genotyping techniques. Future workshops will have to challenge methods and participants with rare variants of RBC genes to guarantee reliable genotyping, e.g. in prenatal diagnosis of fetomaternal incompatibility.
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Affiliation(s)
- H Kroll
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University Giessen, Germany.
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Abstract
BACKGROUND Patients receiving cellular blood components may form HLA antibodies and platelet-specific alloantibodies. STUDY DESIGN AND METHODS Serum samples from a cohort of 252 patients with hematologic or oncologic diseases who are receiving cellular blood components were studied for platelet-reactive antibodies. Specificity of platelet alloantibodies was determined with a panel of typed platelets RESULTS Platelet-reactive antibodies were detected in the sera of 113 patients (44.8% of 252), HLA antibodies in the sera of 108 (42.9%), and platelet-specific antibodies in the sera of 20 (8%). The following platelet-specific antibodies were identified: anti-HPA-5b (n = 10), anti-HPA-1b (n = 4), anti-HPA-5a (n = 2), anti-HPA-1a (n = 1), anti-HPA-2b (n = 1), anti-HPA-1b+5b (n = 1), and anti-HPA-1b+2b (n = 1). Fifteen sera from the 108 patients with anti-HLA (13.9%) contained additional platelet-specific alloantibodies, while in 5 sera, platelet-specific alloantibodies only were detected: anti-HPA-5b (n = 4) and anti-HPA-1a (n = 1). Of the 108 sera with HLA antibodies, 29 (26.9%) showed discordant results when studied with the lymphocytotoxicity test and the glycoprotein-specific immunoassay. Ten sera contained panreactive antibodies against platelet glycoproteins (GP) IIb/IIIa, GPIa/IIa, and/or GPIb/IX. Alloimmunization occurred in 58.3 percent of female patients with previous pregnancies, but in only 23.3 percent of those without previous pregnancies (p = 0.0049). CONCLUSION Platelet alloantibody specificities in transfused patients (predominantly anti-HPA-5b and -1b with antigen frequencies <30% among whites) differ significantly from those observed in patients with neonatal alloimmune thrombocytopenia or posttransfusion purpura, in whom anti-HPA-1a (antigen frequency >95%) is the most prevalent specificity. HLA antibody detection yields discordant results when the lymphocytotoxicity assay and a glycoprotein-specific immunoglobulin-binding assay are used.
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Affiliation(s)
- V Kiefel
- Department of Transfusion Medicine, University of Rostock, Rostock, Germany.
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