1
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Bourgoin P, Dupont T, Agabriel C, Carsin A, Verles A, Cabanski M, Vitaliti A, Busnel JM. Possible alternative strategies to implement basophil activation testing in multicentric studies. CYTOMETRY. PART B, CLINICAL CYTOMETRY 2024. [PMID: 38572669 DOI: 10.1002/cyto.b.22172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 02/15/2024] [Accepted: 03/26/2024] [Indexed: 04/05/2024]
Abstract
The Basophil Activation Test (BAT) enables flow cytometry characterization of basophil reactivity against specific allergenic molecules. The focus now revolves around democratizing this tool, but, as blood sample stability could be challenging, after having developed a simplified approach, herein, we aimed to characterize two strategies for implementing BAT in multicentric studies: store and ship blood before or after sample processing. Fresh heparin- and EDTA-anticoagulated whole blood samples followed both BAT workflows: "collect, store, process & analyze" or "collect, process, store & analyze". Storage temperatures of 18-25 °C or 2-8 °C and preservation times from 0 to 7 days were considered. Interleukin-3 was also evaluated. With the "collect, store, process & analyze" workflow, heparin-anticoagulated blood and 18-25 °C storage were better than other conditions. While remaining possible, basophil activation exhibited a possible reactivity decay after 24 h. Under the conditions tested, interleukin-3 had no role in enhancing basophil reactivity after storage. Conversely, the "collect, process, store & analyze" workflow demonstrated that either heparin- or EDTA-anticoagulated blood can be processed and kept up to 7 days at 18-25 °C or 2-8 °C before being analyzed. Various strategies can be implemented to integrate BAT in multicentric studies. The "collect, store, process & analyze" workflow remains a simplified logistical approach, but depending on time required to ship from the clinical centers to the reference laboratories, it might not be applicable, or should be used with caution. The "collect, process, store & analyze" workflow may constitute a workflow improvement to provide significant flexibility without impact on basophil reactivity.
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Affiliation(s)
- Pénélope Bourgoin
- Global Research Organization, Beckman Coulter Life Sciences, Marseille, France
| | - Thomas Dupont
- Global Research Organization, Beckman Coulter Life Sciences, Marseille, France
| | - Chantal Agabriel
- Department of Pediatric Emergency Medicine, Timone University Hospital, APHM, Marseille, France
| | - Ania Carsin
- Department of Pediatric Emergency Medicine, Saint Joseph Hospital, Marseille, France
| | - Aurélie Verles
- BioMarker Development, Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - Maciej Cabanski
- BioMarker Development, Novartis Institutes for Biomedical Research, Basel, Switzerland
- Biomarkers and CDx, Monte Rosa Therapeutics, Basel, Switzerland
| | - Alessandra Vitaliti
- BioMarker Development, Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - Jean-Marc Busnel
- Global Research Organization, Beckman Coulter Life Sciences, Marseille, France
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2
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Bento LC, Correia RP, de Sousa FA, Bacal NS. A novel approach for MRD assessment by high-sensitivity flow cytometry and multidimensional radar visualization. Int J Lab Hematol 2023; 45:616-619. [PMID: 36907222 DOI: 10.1111/ijlh.14054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 02/21/2023] [Indexed: 03/14/2023]
Affiliation(s)
- Laiz Cameirão Bento
- Clinical Pathology Laboratory, Flow Cytometry Division, Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Rodolfo Patussi Correia
- Clinical Pathology Laboratory, Flow Cytometry Division, Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Flávia Arandas de Sousa
- Clinical Pathology Laboratory, Flow Cytometry Division, Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Nydia Strachman Bacal
- Clinical Pathology Laboratory, Flow Cytometry Division, Hospital Israelita Albert Einstein, São Paulo, Brazil
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3
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Glencross DK, Swart L, Pretorius M, Lawrie D. Evaluation of fixed-panel, multicolour ClearLLab 10C at an academic flow cytometry laboratory in Johannesburg, South Africa. Afr J Lab Med 2022; 11:1458. [PMID: 35937760 PMCID: PMC9350555 DOI: 10.4102/ajlm.v11i1.1458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 03/30/2022] [Indexed: 11/17/2022] Open
Abstract
Background Flow cytometric immunophenotyping is well established for the diagnosis of haematological neoplasms. New commercially available systems offer fixed, pre-aliquoted multi-parameter analysis to simplify sample preparation and standardise data analysis. Objective The Beckman Coulter (BC) ClearLLab™ 10C (4-tube) system was evaluated against an existing laboratory developed test (LDT). Methods Peripheral blood and bone marrow aspirates (n = 101), tested between August 2019 and November 2019 at an academic pathology laboratory in Johannesburg, South Africa, were analysed. Following daily instrument quality control, samples were prepared for LDT (using > 20 2–4-colour in-house panels and an extensive liquid monoclonal reagent repertoire) or ClearLLab 10C, and respectively analysed using in-house protocols on a Becton Dickinson FACSCalibur, or manufacturer-directed protocols on a BC Navios. Becton Dickinson Paint-a-Gate or BC Kaluza C software facilitated data interpretation. Diagnostic accuracy (concordance) was established by calculating sensitivity and specificity outcomes. Results Excellent agreement (clinical diagnostic concordance) with 100% specificity and sensitivity was established between LDT and ClearLLab 10C in 67 patients with a haematological neoplasm and 34 participants with no haematological disease. Similar acceptable diagnostic concordance (97%) was noted when comparing ClearLLab 10C to clinicopathological outcomes. Additionally, the ClearLLab 10C panels, analysed with Kaluza C software, enabled simultaneous discrimination of disease and concurrent background myeloid and lymphoid haematological populations, including assessing stages of maturation or sub-populations. Conclusion ClearLLab 10C panels provide excellent agreement to existing LDTs and may reliably be used for immunophenotyping of haematological neoplasms, simplifying and standardising sample preparation and data acquisition.
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Affiliation(s)
- Deborah K Glencross
- Department of Molecular Medicine and Haematology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Department of Molecular Medicine and Haematology, Charlotte Maxeke Academic Hospital, National Health Laboratory Service, Johannesburg, South Africa
| | - Leanne Swart
- Department of Molecular Medicine and Haematology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Department of Molecular Medicine and Haematology, Charlotte Maxeke Academic Hospital, National Health Laboratory Service, Johannesburg, South Africa
| | - Melanie Pretorius
- Department of Molecular Medicine and Haematology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Department of Molecular Medicine and Haematology, Charlotte Maxeke Academic Hospital, National Health Laboratory Service, Johannesburg, South Africa
| | - Denise Lawrie
- Department of Molecular Medicine and Haematology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Department of Molecular Medicine and Haematology, Charlotte Maxeke Academic Hospital, National Health Laboratory Service, Johannesburg, South Africa
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4
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Bourgoin P, Belkacem IA, Arnoux I, Morange PE, Malergue F. Direct freezing of whole blood enables analysis of leucocyte markers by flow cytometry: a proof-of-concept study. Future Microbiol 2021; 16:955-966. [PMID: 34406067 DOI: 10.2217/fmb-2021-0034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: A new one-step flow cytometry procedure has been recently demonstrated for identifying subjects with infections, but only for fresh whole blood samples. The goal of this study was to assess its applicability on frozen samples, by proposing a new method to perform the sample freezing directly and easily. Methods: Fresh blood was tested, then frozen either directly or with dimethylsulfoxide and serum. Common markers of white blood cells as well as infection-related biomarkers were tested. Results: All percentages of leucocyte subsets and levels of infection-related biomarkers were significantly correlated between frozen and fresh samples. Conclusion: The direct freezing method enables an accurate assessment of common cellular sub-populations and of levels of important infectious biomarkers via flow cytometry.
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Affiliation(s)
- Pénélope Bourgoin
- Department of Research & Development, Beckman Coulter Life Sciences-Immunotech, 130 Avenue de Lattre de Tassigny, Marseille, 13009, France.,C2VN INSERM-INRAE, Aix-Marseille University, 27 Boulevard Jean Moulin, Marseille, 13385, France
| | - Inès Ait Belkacem
- Department of Research & Development, Beckman Coulter Life Sciences-Immunotech, 130 Avenue de Lattre de Tassigny, Marseille, 13009, France.,UMR 7280, Marseille-Luminy Immunology Center (CIML), Marseille, 13009, France
| | - Isabelle Arnoux
- Laboratory of Hematology, La Timone Hospital, 264 Rue Saint-Pierre, Marseille, 13385, France
| | - Pierre-Emmanuel Morange
- C2VN INSERM-INRAE, Aix-Marseille University, 27 Boulevard Jean Moulin, Marseille, 13385, France.,Laboratory of Hematology, La Timone Hospital, 264 Rue Saint-Pierre, Marseille, 13385, France
| | - Fabrice Malergue
- Department of Research & Development, Beckman Coulter Life Sciences-Immunotech, 130 Avenue de Lattre de Tassigny, Marseille, 13009, France
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5
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Hedley BD, Cheng G, Keeney M, Kern W, Padurean A, Luider J, Chin‐Yee I, Lowes LE, Rohrbach J, Ortega R, Smit A, Lo K, Magari R, Tejidor L. A multicenter study evaluation of the ClearLLab 10C panels. CYTOMETRY. PART B, CLINICAL CYTOMETRY 2021; 100:225-234. [PMID: 32667744 PMCID: PMC8048967 DOI: 10.1002/cyto.b.21935] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 05/20/2020] [Accepted: 06/16/2020] [Indexed: 11/26/2022]
Abstract
Multiparameter flow cytometry plays an important role in the diagnosis, staging, and monitoring of patients with a suspected hematological malignancy. The ClearLLab 10C Panels consist of four reagent panels (B-Lineage Tube, T-Lineage Tube, and 2 Myeloid Lineage Tubes), each consisting of 10 color/10 antibody conjugates utilizing Beckman Coulters proprietary dry format optimized for investigating patients with suspected leukemia or lymphoma. A multicenter study was conducted to evaluate the performance of the ClearLLab 10C Panels for qualitative assessment of normal versus abnormal phenotype in peripheral blood, bone marrow, and lymph node samples with suspected hematological malignancies. ClearLLab 10C was compared to laboratory developed tests (LDTs) and final clinical diagnosis. Four clinical sites were used to enroll patient's spent specimens (n = 453); three laboratories in North America and one in Europe. Of the 453 specimens, 198 had no malignancy and 255 contained an abnormal population. The diagnostic accuracy of the ClearLLab 10C Panels was achieved with sensitivity of 96% and specificity of 95% with respect to patient final clinical diagnosis. The agreement of phenotyping between ClearLLab10C Panels and LDTs was 98%. Any differences noted between ClearLLab 10C and LDT were due to either the presence of populations below the level of detection, the lack of clinical information provided to the evaluators, or marker(s) not present in these panels. Overall, the ClearLLab 10C demonstrated excellent agreement to LDTs and diagnosis. These four reagent panels can be adopted by individual laboratories to assess the presence or absence of malignancy.
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Affiliation(s)
- Benjamin D. Hedley
- Department of Pathology and Laboratory MedicineLondon Health Sciences CenterLondonOntarioCanada
| | - Guoyan Cheng
- Department of Clinical Research, Beckman Coulter, Inc.MiamiFloridaUSA
| | - Michael Keeney
- Department of Pathology and Laboratory MedicineLondon Health Sciences CenterLondonOntarioCanada
| | - Wolfgang Kern
- MLL Munich Leukemia LaboratoryDepartment of ImmunophenotypingMunichGermany
| | - Adrian Padurean
- Neogenomics Laboratory, Inc.Department of Flow CytometryFort MyersFloridaUSA
| | - Joanne Luider
- Calgary Laboratory ServicesFlow Cytometry CalgaryAlbertaCanada
| | - Ian Chin‐Yee
- Department of Pathology and Laboratory MedicineLondon Health Sciences CenterLondonOntarioCanada
| | - Lori E. Lowes
- Department of Pathology and Laboratory MedicineLondon Health Sciences CenterLondonOntarioCanada
| | - Justin Rohrbach
- Department of Clinical Research, Beckman Coulter, Inc.MiamiFloridaUSA
| | - Robert Ortega
- Department of Clinical Research, Beckman Coulter, Inc.MiamiFloridaUSA
| | - Astrid Smit
- Department of Clinical Research, Beckman Coulter, Inc.MiamiFloridaUSA
| | - Ka‐Wai Lo
- Department of Clinical Research, Beckman Coulter, Inc.MiamiFloridaUSA
| | - Robert Magari
- Department of Clinical Research, Beckman Coulter, Inc.MiamiFloridaUSA
| | - Liliana Tejidor
- Department of Clinical Research, Beckman Coulter, Inc.MiamiFloridaUSA
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6
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Bento L, Correia R, Sousa F, Vaz A, Pedro E, Schimidell D, Millan N, Passaro M, Barroso R, Bacal N. Performance of eight‐color dry antibody reagent in the detection of minimal residual disease in chronic lymphocytic leukemia samples. CYTOMETRY PART B-CLINICAL CYTOMETRY 2020; 98:529-535. [DOI: 10.1002/cyto.b.21875] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 03/06/2020] [Accepted: 03/12/2020] [Indexed: 11/08/2022]
Affiliation(s)
- Laiz Bento
- Flow Cytometry Clinical Laboratory Hospital Isarelita Albert Einstein São Paulo Brazil
| | - Rodolfo Correia
- Flow Cytometry Clinical Laboratory Hospital Isarelita Albert Einstein São Paulo Brazil
| | - Flávia Sousa
- Flow Cytometry Clinical Laboratory Hospital Isarelita Albert Einstein São Paulo Brazil
| | - Andressa Vaz
- Flow Cytometry Clinical Laboratory Hospital Isarelita Albert Einstein São Paulo Brazil
| | - Eduardo Pedro
- Flow Cytometry Clinical Laboratory Hospital Isarelita Albert Einstein São Paulo Brazil
| | - Daniela Schimidell
- Flow Cytometry Clinical Laboratory Hospital Isarelita Albert Einstein São Paulo Brazil
| | - Nadila Millan
- Flow Cytometry Clinical Laboratory Hospital Isarelita Albert Einstein São Paulo Brazil
| | - Marilia Passaro
- Flow Cytometry Clinical Laboratory Hospital Isarelita Albert Einstein São Paulo Brazil
| | - Rodrigo Barroso
- Flow Cytometry Clinical Laboratory Hospital Isarelita Albert Einstein São Paulo Brazil
| | - Nydia Bacal
- Flow Cytometry Clinical Laboratory Hospital Isarelita Albert Einstein São Paulo Brazil
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7
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Bourgoin P, Lediagon G, Arnoux I, Bernot D, Morange PE, Michelet P, Malergue F, Markarian T. Flow cytometry evaluation of infection-related biomarkers in febrile subjects in the emergency department. Future Microbiol 2020; 15:189-201. [PMID: 32065550 DOI: 10.2217/fmb-2019-0256] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Aim: In an Emergency Department (ED), the etiological identification of infected subjects is essential. 13 infection-related biomarkers were assessed using a new flow cytometry procedure. Materials & methods: If subjects presented with febrile symptoms at the ED, 13 biomarkers' levels, including CD64 on neutrophils (nCD64) and CD169 on monocytes (mCD169), were tested and compared with clinical records. Results: Among 50 subjects, 78% had bacterial infections and 8% had viral infections. nCD64 showed 82% sensitivity and 91% specificity for identifying subjects with bacterial infections. mCD169, HLA-ABC ratio and HLA-DR on monocytes had high values in subjects with viral infections. Conclusion: Biomarkers showed promising performances to improve the ED's infectious stratification.
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Affiliation(s)
- Pénélope Bourgoin
- Department of Research & Development, Beckman Coulter Life Sciences-Immunotech, 130 Avenue de Lattre de Tassigny, 13009 Marseille, France.,C2VN INSERM-INRA, Aix-Marseille University, 27 Boulevard Jean Moulin, 13385 Marseille, France
| | - Guillaume Lediagon
- Adult Emergency Unit, La Timone Hospital, APHM, 264 Rue Saint Pierre, 13385 Marseille, France
| | - Isabelle Arnoux
- Hematology Laboratory, La Timone Hospital, APHM, 264 Rue Saint Pierre, 13385 Marseille, France
| | - Denis Bernot
- Hematology Laboratory, La Timone Hospital, APHM, 264 Rue Saint Pierre, 13385 Marseille, France
| | - Pierre-Emmanuel Morange
- C2VN INSERM-INRA, Aix-Marseille University, 27 Boulevard Jean Moulin, 13385 Marseille, France.,Hematology Laboratory, La Timone Hospital, APHM, 264 Rue Saint Pierre, 13385 Marseille, France
| | - Pierre Michelet
- Adult Emergency Unit, La Timone Hospital, APHM, 264 Rue Saint Pierre, 13385 Marseille, France
| | - Fabrice Malergue
- Department of Research & Development, Beckman Coulter Life Sciences-Immunotech, 130 Avenue de Lattre de Tassigny, 13009 Marseille, France
| | - Thibaut Markarian
- Adult Emergency Unit, La Timone Hospital, APHM, 264 Rue Saint Pierre, 13385 Marseille, France
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8
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Gounari E, Tsavdaridou V, Ioakeimidou A, Haidich AB, Skoura L. Evaluation of a 10color protocol as part of a 2tube screening panel for flow cytometric assessment of peripheral blood leukocytic subsets. Scandinavian Journal of Clinical and Laboratory Investigation 2019; 79:475-483. [PMID: 31497995 DOI: 10.1080/00365513.2019.1661007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Peripheral blood (PB) immunophenotyping is commonly required for initial evaluation of various suspected disease entities. Several approaches have been proposed. The objective of this work is to explore the value of a 10color protocol developed in our laboratory for flow cytometric assessment of PB leukocytic subsets, as part of a 2tube screening panel. A combination of CD16/CD56/CD34/CD33/CD19/CD4/CD8/CD3/CD20/CD45 antibodies in 1 tube was applied routinely during flow cytometric analysis of PB samples for diagnostic purposes. The protocol was systematically complemented by a 2nd tube with anti-kappa, anti-lambda, CD5, CD19, and CD45 antibodies for adults and selected pediatric patients, and specifically oriented panels when necessary. 25 samples with no detectable neoplastic PB involvement and 31 samples with a hematolymphoid disorder were investigated retrospectively. The contribution of CD33 in the separation of leukocytic populations, as well as the benefits from the simultaneous assessment of CD20/CD19/CD45, CD16/CD56 and the detection of CD34+ cells were examined. The gating strategy with the use of CD33 provided additional information in certain cases. The protocol enabled recognition of differential expression of CD20 and CD45 in CD19+ cells with chronic lymphocytic leukemia phenotype, overall evaluation of NK and NK like T cells, estimation of CD16- granulocytes and CD56/CD16 expression in monocytes, as well as identification of minor cell subsets, such as CD34+ cells. The proposed 10color combination of antibodies analyzed in a standardized manner can offer significant information in the initial evaluation of PB samples, thus, guiding subsequent investigation if needed.
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Affiliation(s)
- Evdoxia Gounari
- Department of Immunology, Microbiology Laboratory, AHEPA University Hospital , Thessaloniki , Greece
| | - Vasiliki Tsavdaridou
- Department of Immunology, Microbiology Laboratory, AHEPA University Hospital , Thessaloniki , Greece
| | - Aliki Ioakeimidou
- Department of Immunology, Microbiology Laboratory, AHEPA University Hospital , Thessaloniki , Greece
| | - Anna-Bettina Haidich
- Department of Hygiene, Faculty of Medicine, Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Lemonia Skoura
- Department of Immunology, Microbiology Laboratory, AHEPA University Hospital , Thessaloniki , Greece
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9
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Bourgoin P, Hayman J, Rimmelé T, Venet F, Malergue F, Monneret G. A novel one-step extracellular staining for flow cytometry: Proof-of-concept on sepsis-related biomarkers. J Immunol Methods 2019; 470:59-63. [DOI: 10.1016/j.jim.2019.05.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/25/2019] [Accepted: 05/08/2019] [Indexed: 12/30/2022]
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10
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Bouriche L, Bernot D, Nivaggioni V, Arnoux I, Loosveld M. Detection of Minimal Residual Disease in B Cell Acute Lymphoblastic Leukemia Using an Eight-Color Tube with Dried Antibody Reagents. CYTOMETRY PART B-CLINICAL CYTOMETRY 2019; 96:158-163. [PMID: 30698327 DOI: 10.1002/cyto.b.21766] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 12/13/2018] [Accepted: 01/09/2019] [Indexed: 11/12/2022]
Abstract
BACKGROUND Flow cytometry is a powerful tool for the detection of minimal residual disease (MRD) of B cell precursor acute lymphoblastic leukemia (BCP-ALL) patients. However, the staining process and the choice of antibodies rely on laboratory expertise and may be source of variability or technical errors. Recently, Beckman Coulter commercialized a ready to use tube with dried format reagents for BCP-ALL MRD detection. The aim of this study is to evaluate the applicability of this tube and to compare it to a conventional (liquid format reagents) method. METHODS Thirty-one samples from B ALL patients were analyzed: 19 bone marrow (BM) aspirations, 10 peripheral blood (PB) samples and 2 cerebrospinal fluids at different stages of the follow-up. In addition, we tested 5 bone marrow samples mixed into non-pathological (control) bone marrow. The dried format tube included seven antibodies: CD45Kro, CD58FITC, CD34ECD, CD10PC5.5, CD19PC7, CD38AA700, CD20AA750, with possibility of additional antibodies for blast markers identified at diagnosis. For comparison, a liquid format tube was prepared, and considered as the reference. RESULTS This tube was validated for daily routine laboratory, with satisfying qualitative (MRD + or MRD-) and quantitative (MRD percentages) correlation with the reference tube. CONCLUSION With this single dried format tube, we showed interesting results for BCP-ALL MRD detection in the aim of standardization and reliable interlaboratory results. It allows accurate MRD detection including low levels (10-4), and offers possibility to increase performance (supplementary antibody) within a preestablished effective antibody panel for BCP-ALL MRD. © 2018 International Clinical Cytometry Society.
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Affiliation(s)
- Lakhdar Bouriche
- Assistance Publique Hôpitaux de Marseille, Laboratoire d'Hématologie, Hôpital de la Timone, Marseille, France
| | - Denis Bernot
- Assistance Publique Hôpitaux de Marseille, Laboratoire d'Hématologie, Hôpital de la Timone, Marseille, France
| | - Vanessa Nivaggioni
- Assistance Publique Hôpitaux de Marseille, Laboratoire d'Hématologie, Hôpital de la Timone, Marseille, France
| | - Isabelle Arnoux
- Assistance Publique Hôpitaux de Marseille, Laboratoire d'Hématologie, Hôpital de la Timone, Marseille, France
| | - Marie Loosveld
- Assistance Publique Hôpitaux de Marseille, Laboratoire d'Hématologie, Hôpital de la Timone, Marseille, France.,CNRS, INSERM, CIML, Aix Marseille University, Marseille, France
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11
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Ivison S, Malek M, Garcia RV, Broady R, Halpin A, Richaud M, Brant RF, Wang SI, Goupil M, Guan Q, Ashton P, Warren J, Rajab A, Urschel S, Kumar D, Streitz M, Sawitzki B, Schlickeiser S, Bijl JJ, Wall DA, Delisle JS, West LJ, Brinkman RR, Levings MK. A standardized immune phenotyping and automated data analysis platform for multicenter biomarker studies. JCI Insight 2018; 3:121867. [PMID: 30518691 DOI: 10.1172/jci.insight.121867] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 10/29/2018] [Indexed: 11/17/2022] Open
Abstract
The analysis and validation of flow cytometry-based biomarkers in clinical studies are limited by the lack of standardized protocols that are reproducible across multiple centers and suitable for use with either unfractionated blood or cryopreserved PBMCs. Here we report the development of a platform that standardizes a set of flow cytometry panels across multiple centers, with high reproducibility in blood or PBMCs from either healthy subjects or patients 100 days after hematopoietic stem cell transplantation. Inter-center comparisons of replicate samples showed low variation, with interindividual variation exceeding inter-center variation for most populations (coefficients of variability <20% and interclass correlation coefficients >0.75). Exceptions included low-abundance populations defined by markers with indistinct expression boundaries (e.g., plasmablasts, monocyte subsets) or populations defined by markers sensitive to cryopreservation, such as CD62L and CD45RA. Automated gating pipelines were developed and validated on an independent data set, revealing high Spearman's correlations (rs >0.9) with manual analyses. This workflow, which includes pre-formatted antibody cocktails, standardized protocols for acquisition, and validated automated analysis pipelines, can be readily implemented in multicenter clinical trials. This approach facilitates the collection of robust immune phenotyping data and comparison of data from independent studies.
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Affiliation(s)
- Sabine Ivison
- Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada.,BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Mehrnoush Malek
- Terry Fox Laboratory, BC Cancer, Vancouver, British Columbia, Canada
| | - Rosa V Garcia
- Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada.,BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Raewyn Broady
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Anne Halpin
- Alberta Transplant Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Manon Richaud
- Hôpital Maisonneuve-Rosemont, University of Montreal, Montreal, Quebec, Canada
| | - Rollin F Brant
- BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Szu-I Wang
- Alberta Transplant Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Mathieu Goupil
- Hôpital Maisonneuve-Rosemont, University of Montreal, Montreal, Quebec, Canada
| | - Qingdong Guan
- Department of Pediatrics and Child Health/Internal Medicine, University of Manitoba/Cancer Care Manitoba, Winnipeg, Manitoba, Canada
| | - Peter Ashton
- Toronto General Research Institute, University of Toronto, Toronto, Ontario, Canada
| | - Jason Warren
- Health Sciences Centre, Diagnostic Services Manitoba, Winnipeg, Manitoba, Canada
| | - Amr Rajab
- Department of Laboratory Medicine, Toronto General Hospital, Toronto, Ontario, Canada
| | - Simon Urschel
- Alberta Transplant Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Deepali Kumar
- Toronto General Research Institute, University of Toronto, Toronto, Ontario, Canada
| | - Mathias Streitz
- Institute of Medical Immunology, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Birgit Sawitzki
- Institute of Medical Immunology, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Stephan Schlickeiser
- Institute of Medical Immunology, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Janetta J Bijl
- Hôpital Maisonneuve-Rosemont, University of Montreal, Montreal, Quebec, Canada
| | - Donna A Wall
- Department of Pediatrics and Child Health/Internal Medicine, University of Manitoba/Cancer Care Manitoba, Winnipeg, Manitoba, Canada
| | | | - Lori J West
- Alberta Transplant Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Ryan R Brinkman
- Terry Fox Laboratory, BC Cancer, Vancouver, British Columbia, Canada.,Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Megan K Levings
- Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada.,BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
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