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Rasheed HM, Donia HM, Nadwan EA, Mourad ZI, Farahat N. Identifying Leukemia-associated Immunophenotypes in Acute Myeloid Leukemia Patients Using Multiparameter Flow Cytometry. Oman Med J 2022; 36:e323. [PMID: 35024173 PMCID: PMC8722324 DOI: 10.5001/omj.2021.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 02/01/2021] [Indexed: 11/25/2022] Open
Abstract
Objectives We sought to identify leukemia-associated immunophenotypes (LAIPs) in 50 acute myeloid leukemia (AML) patients at diagnosis using an eight-color multiparameter flow cytometry (MFC) panel and to detect if they showed any alteration in relapsed/refractory cases. Methods We used the eight-color MFC panel with CD45/side scatter log gating strategy to analyze LAIPs in 50 AML patients presenting to Alexandria University Hospitals, Egypt at diagnosis and relapse and refractory cases. Twenty age and sex matched bone marrow samples from patients performing bone marrow aspirate for non-malignant hematological indications were included as controls. Results LAIPs were observed in 43 (86.0%) cases. Only one aberrant immunophenotype was identified in four cases (9.3%), while two to 12 aberrant immunophenotypes were found in the other 39 (90.7%) cases. Strong LAIPs were obtained by combining CD2, CD4, CD56, with either CD34 or CD117, in contrast to CD19, which has to be combined with CD117. Refractory cases showed the presence of the same LAIPs at both initial diagnosis and persistent disease. One case showed the acquisition of new LAIPs after relapse. Conclusions The good choice of LAIPs depends on their specificity rather than their frequency. The results of this study can help in increasing the sensitivity of LAIPs strategy in minimal residual disease using MFC in AML patients, which is considered an important post-diagnosis parameter associated with prognosis and clinical outcome.
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Affiliation(s)
- Hadeer Mohamed Rasheed
- Clinical Pathology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Hanaa Mahmoud Donia
- Clinical Pathology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Eman Attia Nadwan
- Internal Medicine Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Zeinab Ibrahim Mourad
- Clinical Pathology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Nahla Farahat
- Clinical Pathology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt
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Technical Aspects of Flow Cytometry-based Measurable Residual Disease Quantification in Acute Myeloid Leukemia: Experience of the European LeukemiaNet MRD Working Party. Hemasphere 2022; 6:e676. [PMID: 34964040 PMCID: PMC8701786 DOI: 10.1097/hs9.0000000000000676] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 11/23/2021] [Indexed: 12/12/2022] Open
Abstract
Measurable residual disease (MRD) quantified by multiparameter flow cytometry (MFC) is a strong and independent prognostic factor in acute myeloid leukemia (AML). However, several technical factors may affect the final read-out of the assay. Experts from the MRD Working Party of the European LeukemiaNet evaluated which aspects are crucial for accurate MFC-MRD measurement. Here, we report on the agreement, obtained via a combination of a cross-sectional questionnaire, live discussions, and a Delphi poll. The recommendations consist of several key issues from bone marrow sampling to final laboratory reporting to ensure quality and reproducibility of results. Furthermore, the experiences were tested by comparing two 8-color MRD panels in multiple laboratories. The results presented here underscore the feasibility and the utility of a harmonized theoretical and practical MFC-MRD assessment and are a next step toward further harmonization.
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3
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[Chinese consensus on minimal residual disease detection and interpretation of patients with acute myeloid leukemia (2021)]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2021; 42:889-897. [PMID: 35045649 PMCID: PMC8763587 DOI: 10.3760/cma.j.issn.0253-2727.2021.11.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Indexed: 12/02/2022]
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4
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Huang A, Chen Q, Fei Y, Wang Z, Ni X, Gao L, Chen L, Chen J, Zhang W, Yang J, Wang J, Hu X. Dynamic prediction of relapse in patients with acute leukemias after allogeneic transplantation: Joint model for minimal residual disease. Int J Lab Hematol 2020; 43:84-92. [PMID: 32881394 DOI: 10.1111/ijlh.13328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 07/21/2020] [Accepted: 08/04/2020] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Relapse remains the leading cause of treatment failure after allogeneic hematopoietic stem cell transplantation (alloHSCT) in leukemia. Numerous investigations have demonstrated that minimal residual disease (MRD) before or after alloHSCT is prognostic of relapse risk. These MRD data were collected at specific checkpoints and could not dynamically predict the relapse risk after alloHSCT, which needs serial monitoring. METHODS In the present study, we retrospectively analyzed MRD measured with multi-parameter flow cytometry in 207 acute myeloid leukemia (AML) patients (acute promyelocytic leukemia excluded), and 124 acute B lymphoblastic leukemia (ALL) patients. A three-step method based on joint model was used to build a relapse risk prediction model. RESULTS The 3-year overall survival and relapse-free survival rates of the entire cohort were 67.1% ± 2.8% and 61.6% ± 2.8%, respectively. The model included disease status before alloHSCT, acute and chronic graft-versus-host disease, and serial MRD data. The time-dependent receiver operating characteristics was used to evaluate the ability of the model. It fitted well with actual incidence of relapse. The serial MRD data collected after alloHSCT had better discrimination capabilities for recurrence prediction with the area under the curve from 0.67 to 0.91 (AML: 0.66-0.89; ALL: 0.70-0.96). CONCLUSION The joint model was able to dynamically predict relapse-free probability after alloHSCT, which would be a useful tool to provide important information to guide decision-making in the clinic and facilitate the individualized therapy.
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Affiliation(s)
- Aijie Huang
- Department of Hematology, Institute of Hematology, Changhai Hospital, Shanghai, China
| | - Qi Chen
- Department of Health Statistics, Second Military Medical University, Shanghai, China
| | - Yang Fei
- Department of Hematology, Institute of Hematology, Changhai Hospital, Shanghai, China
| | - Ziwei Wang
- Department of Hematology, Institute of Hematology, Changhai Hospital, Shanghai, China
| | - Xiong Ni
- Department of Hematology, Institute of Hematology, Changhai Hospital, Shanghai, China
| | - Lei Gao
- Department of Hematology, Institute of Hematology, Changhai Hospital, Shanghai, China
| | - Li Chen
- Department of Hematology, Institute of Hematology, Changhai Hospital, Shanghai, China
| | - Jie Chen
- Department of Hematology, Institute of Hematology, Changhai Hospital, Shanghai, China
| | - Weiping Zhang
- Department of Hematology, Institute of Hematology, Changhai Hospital, Shanghai, China
| | - Jianmin Yang
- Department of Hematology, Institute of Hematology, Changhai Hospital, Shanghai, China
| | - Jianmin Wang
- Department of Hematology, Institute of Hematology, Changhai Hospital, Shanghai, China
| | - Xiaoxia Hu
- Department of Hematology, Institute of Hematology, Changhai Hospital, Shanghai, China
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5
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Gianfaldoni G, Mannelli F, Intermesoli T, Bencini S, Giupponi D, Farina G, Cutini I, Bonetti MI, Masciulli A, Audisio E, Ferrero D, Pavoni C, Scattolin AM, Bosi A, Rambaldi A, Bassan R. Early peripheral clearance of leukemia-associated immunophenotypes in AML: centralized analysis of a randomized trial. Blood Adv 2020; 4:301-311. [PMID: 31978214 PMCID: PMC6988394 DOI: 10.1182/bloodadvances.2019000406] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 12/20/2019] [Indexed: 12/15/2022] Open
Abstract
Although genetics is a relevant risk factor in acute myeloid leukemia (AML), it can be minimally informative and/or not readily available for the early identification of patients at risk for treatment failure. In a randomized trial comparing standard vs high-dose induction (ClinicalTrials.gov #NCT00495287), we studied early peripheral blast cell clearance (PBC) as a rapid predictive assay of chemotherapy response to determine whether it correlates with the achievement of complete remission (CR), as well as postremission outcome, according to induction intensity. Individual leukemia-associated immunophenotypes (LAIPs) identified pretherapy by flow cytometry were validated and quantified centrally after 3 days of treatment, expressing PBC on a logarithmic scale as the ratio of absolute LAIP+ cells on day 1 and day 4. Of 178 patients, 151 (84.8%) were evaluable. Patients in CR exhibited significantly higher median PBC (2.3 log) compared with chemoresistant patients (1.0 log; P < .0001). PBC < 1.0 predicted the worst outcome (CR, 28%). With 1.5 log established as the most accurate cutoff predicting CR, 87.5% of patients with PBC >1.5 (PBChigh, n = 96) and 43.6% of patients with PBC ≤1.5 (PBClow, n = 55) achieved CR after single-course induction (P < .0001). CR and PBChigh rates were increased in patients randomized to the high-dose induction arm (P = .04) and correlated strongly with genetic/cytogenetic risk. In multivariate analysis, PBC retained significant predictive power for CR, relapse risk, and survival. Thus, PBC analysis can provide a very early prediction of outcome, correlates with treatment intensity and disease subset, and may support studies of customized AML therapy.
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Affiliation(s)
- Giacomo Gianfaldoni
- Struttura Organizzativa Dipartimentale (SOD) Ematologia, Università di Firenze, and
| | - Francesco Mannelli
- Struttura Organizzativa Dipartimentale (SOD) Ematologia, Università di Firenze, and
- Centro Ricerca e Innovazione Malattie Mieloproliferative, Azienda Ospedaliero-Universitaria (AOU) Careggi, Florence, Italy
| | - Tamara Intermesoli
- Unità Strutturale Complessa di Ematologia, Azienda Ospedaliera Papa Giovanni XXIII, Bergamo, Italy
| | - Sara Bencini
- Struttura Organizzativa Dipartimentale (SOD) Ematologia, Università di Firenze, and
- Centro Diagnostico di Citofluorimetria e Immunoterapia, AOU Careggi, Florence, Italy
| | - Damiano Giupponi
- Unità Strutturale Complessa di Ematologia, Azienda Ospedaliera Papa Giovanni XXIII, Bergamo, Italy
| | - Giorgio Farina
- Unità Operativa Laboratorio Analisi-Citofluorimetria, Ospedale dell'Angelo, Mestre-Venezia, Italy
| | - Ilaria Cutini
- Struttura Organizzativa Dipartimentale (SOD) Ematologia, Università di Firenze, and
- SOD Terapie Cellulari e Medicina Trasfusionale, AOU Careggi, Florence, Italy
| | - Maria Ida Bonetti
- Struttura Organizzativa Dipartimentale (SOD) Ematologia, Università di Firenze, and
| | - Arianna Masciulli
- Unità Strutturale Complessa di Ematologia, Azienda Ospedaliera Papa Giovanni XXIII, Bergamo, Italy
| | - Ernesta Audisio
- Struttura Complessa di Ematologia, Ospedale Molinette, Turin, Italy
| | - Dario Ferrero
- Divisione di Ematologia, Università di Torino, Azienda Ospedaliera S. Giovanni Battista, Turin, Italy; and
| | - Chiara Pavoni
- Unità Strutturale Complessa di Ematologia, Azienda Ospedaliera Papa Giovanni XXIII, Bergamo, Italy
| | | | - Alberto Bosi
- Struttura Organizzativa Dipartimentale (SOD) Ematologia, Università di Firenze, and
| | - Alessandro Rambaldi
- Unità Strutturale Complessa di Ematologia, Azienda Ospedaliera Papa Giovanni XXIII, Bergamo, Italy
| | - Renato Bassan
- Unità Operativa di Ematologia, Ospedale dell'Angelo, Mestre-Venezia, Italy
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6
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Rossi G, Giambra V, Minervini MM, De Waure C, Mancinelli S, Ciavarella M, Sinisi NP, Scalzulli PR, Carella AM, Cascavilla N. Leukemia‐associated immunophenotypes subdivided in “categories of specificity” improve the sensitivity of minimal residual disease in predicting relapse in acute myeloid leukemia. CYTOMETRY PART B-CLINICAL CYTOMETRY 2019; 98:216-225. [DOI: 10.1002/cyto.b.21855] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 10/09/2019] [Accepted: 10/22/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Giovanni Rossi
- Department of Hematology and Stem Cell Transplant Unit, Fondazione IRCCS “Casa Sollievo della Sofferenza” San Giovanni Rotondo Italy
| | - Vincenzo Giambra
- Institute of Stem Cells Biology, Regenerative Medicine and Innovative Therapies (ISBReMIT), Fondazione IRCCS "Casa Sollievo della Sofferenza‐IRCCS" San Giovanni Rotondo Italy
| | - Maria M. Minervini
- Department of Hematology and Stem Cell Transplant Unit, Fondazione IRCCS “Casa Sollievo della Sofferenza” San Giovanni Rotondo Italy
| | - Chiara De Waure
- Department of Experimental MedicineUniversity of Perugia Perugia Italy
| | - Silvia Mancinelli
- Department of Experimental MedicineUniversity of Perugia Perugia Italy
| | - Michele Ciavarella
- Institute of Stem Cells Biology, Regenerative Medicine and Innovative Therapies (ISBReMIT), Fondazione IRCCS "Casa Sollievo della Sofferenza‐IRCCS" San Giovanni Rotondo Italy
| | - Nicola P. Sinisi
- Department of Hematology and Stem Cell Transplant Unit, Fondazione IRCCS “Casa Sollievo della Sofferenza” San Giovanni Rotondo Italy
| | - Potito R. Scalzulli
- Department of Hematology and Stem Cell Transplant Unit, Fondazione IRCCS “Casa Sollievo della Sofferenza” San Giovanni Rotondo Italy
| | - Angelo M. Carella
- Department of Hematology and Stem Cell Transplant Unit, Fondazione IRCCS “Casa Sollievo della Sofferenza” San Giovanni Rotondo Italy
| | - Nicola Cascavilla
- Department of Hematology and Stem Cell Transplant Unit, Fondazione IRCCS “Casa Sollievo della Sofferenza” San Giovanni Rotondo Italy
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7
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Zhang Y, Zhang YM, Chen Q, Tang GS, Qiu HY, Gao L, Chen J, Ni X, Chen L, Zhang WP, Yang JM, Wang JM, Hu XX. [Minimal residual disease before post-remission therapy predicts outcomes in younger adult with intermediate-risk acute myeloid leukemia]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2019; 40:147-151. [PMID: 30831632 PMCID: PMC7342654 DOI: 10.3760/cma.j.issn.0253-2727.2019.02.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Indexed: 01/04/2023]
Affiliation(s)
- Y Zhang
- Department of Hematology, Changhai Hospital, the Second Military Medical University; Institute of Hematologic Disease of Chinese PLA, Shanghai 200433, China
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8
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Mashima K, Oh I, Ikeda T, Toda Y, Ito S, Umino K, Minakata D, Nakano H, Morita K, Yamasaki R, Kawasaki Y, Sugimoto M, Yamamoto C, Ashizawa M, Fujiwara SI, Hatano K, Sato K, Omine K, Muroi K, Kanda Y. Role of Sequential Monitoring of WT1 Gene Expression in Patients With Acute Myeloid Leukemia for the Early Detection of Leukemia Relapse. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2018; 18:e521-e527. [DOI: 10.1016/j.clml.2018.07.298] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 07/20/2018] [Accepted: 07/27/2018] [Indexed: 01/13/2023]
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9
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Brooimans RA, van der Velden VHJ, Boeckx N, Slomp J, Preijers F, Te Marvelde JG, Van NM, Heijs A, Huys E, van der Holt B, de Greef GE, Kelder A, Schuurhuis GJ. Immunophenotypic measurable residual disease (MRD) in acute myeloid leukemia: Is multicentric MRD assessment feasible? Leuk Res 2018; 76:39-47. [PMID: 30553189 DOI: 10.1016/j.leukres.2018.11.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 11/01/2018] [Accepted: 11/26/2018] [Indexed: 10/27/2022]
Abstract
Flow-cytometric detection of now termed measurable residual disease (MRD) in acute myeloid leukemia (AML) has proven to have an independent prognostic impact. In a previous multicenter study we developed protocols to accurately define leukemia-associated immunophenotypes (LAIPs) at diagnosis. It has, however, not been demonstrated whether the use of the defined LAIPs in the same multicenter setting results in a high concordance between centers in MRD assessment. In the present paper we evaluated whether interpretation of list-mode data (LMD) files, obtained from MRD assessment of previously determined LAIPs during and after treatment, could reliably be performed in a multicenter setting. The percentage of MRD positive cells was simultaneously determined in totally 173 LMD files from 77 AML patients by six participating centers. The quantitative concordance between the six participating centers was meanly 84%, with slight variation of 75%-89%. In addition our data showed that the type and number of LAIPs were of influence on the performance outcome. The highest concordance was observed for LAIPs with cross-lineage expression, followed by LAIPs with an asynchronous antigen expression. Our results imply that immunophenotypic MRD assessment in AML will only be feasible when fully standardized methods are used for reliable multicenter assessment.
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Affiliation(s)
- Rik A Brooimans
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands; Laboratory of Clinical and Tumor Immunology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.
| | - Vincent H J van der Velden
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Nancy Boeckx
- Laboratory of Experimental Transplantation, University of Leuven, Leuven, Belgium
| | - Jennita Slomp
- Department of Clinical Chemistry, Medisch Spectrum Twente/Medlon, Enschede, The Netherlands
| | - Frank Preijers
- Department of Laboratory Medicine-Laboratory for Hematology, Radboud UMC, Nijmegen, The Netherlands
| | - Jeroen G Te Marvelde
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Ngoc M Van
- Laboratory of Clinical and Tumor Immunology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Antoinette Heijs
- Department of Clinical Chemistry, Medisch Spectrum Twente/Medlon, Enschede, The Netherlands
| | - Erik Huys
- Department of Laboratory Medicine-Laboratory for Hematology, Radboud UMC, Nijmegen, The Netherlands
| | - Bronno van der Holt
- Department of Hematology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Georgine E de Greef
- Department of Hematology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Angele Kelder
- Department of Hematology, VU University Medical Center, Amsterdam, The Netherlands
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10
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Gaipa G, Buracchi C, Biondi A. Flow cytometry for minimal residual disease testing in acute leukemia: opportunities and challenges. Expert Rev Mol Diagn 2018; 18:775-787. [DOI: 10.1080/14737159.2018.1504680] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Giuseppe Gaipa
- Department of Pediatrics, University of Milano-Bicocca, Fondazione Tettamanti - Centro Ricerca M.Tettamanti, Monza, Italy
| | - Chiara Buracchi
- Department of Pediatrics, University of Milano-Bicocca, Fondazione Tettamanti - Centro Ricerca M.Tettamanti, Monza, Italy
| | - A Biondi
- Department of Pediatrics, University of Milano-Bicocca, Fondazione Tettamanti - Centro Ricerca M.Tettamanti, Monza, Italy
- Fondazione MBBM/Ospedale San Gerardo - Department of Pediatrics, University of Milano-Bicocca, Monza, Italy
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11
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Schuurhuis GJ, Heuser M, Freeman S, Béné MC, Buccisano F, Cloos J, Grimwade D, Haferlach T, Hills RK, Hourigan CS, Jorgensen JL, Kern W, Lacombe F, Maurillo L, Preudhomme C, van der Reijden BA, Thiede C, Venditti A, Vyas P, Wood BL, Walter RB, Döhner K, Roboz GJ, Ossenkoppele GJ. Minimal/measurable residual disease in AML: a consensus document from the European LeukemiaNet MRD Working Party. Blood 2018; 131:1275-1291. [PMID: 29330221 PMCID: PMC5865231 DOI: 10.1182/blood-2017-09-801498] [Citation(s) in RCA: 767] [Impact Index Per Article: 127.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 01/03/2018] [Indexed: 12/13/2022] Open
Abstract
Measurable residual disease (MRD; previously termed minimal residual disease) is an independent, postdiagnosis, prognostic indicator in acute myeloid leukemia (AML) that is important for risk stratification and treatment planning, in conjunction with other well-established clinical, cytogenetic, and molecular data assessed at diagnosis. MRD can be evaluated using a variety of multiparameter flow cytometry and molecular protocols, but, to date, these approaches have not been qualitatively or quantitatively standardized, making their use in clinical practice challenging. The objective of this work was to identify key clinical and scientific issues in the measurement and application of MRD in AML, to achieve consensus on these issues, and to provide guidelines for the current and future use of MRD in clinical practice. The work was accomplished over 2 years, during 4 meetings by a specially designated MRD Working Party of the European LeukemiaNet. The group included 24 faculty with expertise in AML hematopathology, molecular diagnostics, clinical trials, and clinical medicine, from 19 institutions in Europe and the United States.
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Affiliation(s)
- Gerrit J Schuurhuis
- Department of Hematology, VU University Medical Center, Amsterdam, The Netherlands
| | - Michael Heuser
- Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Sylvie Freeman
- Department of Clinical Immunology, Institute of Immunology and Immunotherapy, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | | | - Francesco Buccisano
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Jacqueline Cloos
- Department of Hematology, VU University Medical Center, Amsterdam, The Netherlands
- Department of Pediatric Oncology, VU University Medical Center, Amsterdam, The Netherlands
| | - David Grimwade
- Division of Genetics & Molecular Medicine, King's College, London, United Kingdom
| | | | - Robert K Hills
- Centre for Trials Research, Cardiff University, Cardiff, United Kingdom
| | | | - Jeffrey L Jorgensen
- Division of Pathology/Laboratory Medicine, Department of Hematopathology, MD Anderson Cancer Center, Houston, TX
| | | | - Francis Lacombe
- Flow Cytometry Platform, University Hospital, Bordeaux, France
| | - Luca Maurillo
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Claude Preudhomme
- Center of Pathology, Laboratory of Hematology, University Hospital of Lille, Lille, France
| | - Bert A van der Reijden
- Department of Laboratory Medicine, Laboratory of Hematology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Christian Thiede
- Universitätsklinikum Carl Gustav Garus an der Technischen Universität Dresden, Dresden, Germany
| | - Adriano Venditti
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Paresh Vyas
- Medical Research Council Molecular Haematology Unit, Oxford Centre for Haematology, University of Oxford and Oxford University Hospitals National Health Service Trust, Oxford, United Kingdom
| | - Brent L Wood
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
- Department of Laboratory Medicine and
| | - Roland B Walter
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
- Division of Hematology, Department of Medicine, University of Washington, Seattle, WA
| | - Konstanze Döhner
- Department of Internal Medicine III, University Hospital of Ulm, Ulm, Germany; and
| | - Gail J Roboz
- Weill Cornell Medicine and New York Presbyterian Hospital, New York, NY
| | - Gert J Ossenkoppele
- Department of Hematology, VU University Medical Center, Amsterdam, The Netherlands
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12
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Arber DA, Borowitz MJ, Cessna M, Etzell J, Foucar K, Hasserjian RP, Rizzo JD, Theil K, Wang SA, Smith AT, Rumble RB, Thomas NE, Vardiman JW. Initial Diagnostic Workup of Acute Leukemia: Guideline From the College of American Pathologists and the American Society of Hematology. Arch Pathol Lab Med 2017; 141:1342-1393. [PMID: 28225303 DOI: 10.5858/arpa.2016-0504-cp] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT - A complete diagnosis of acute leukemia requires knowledge of clinical information combined with morphologic evaluation, immunophenotyping and karyotype analysis, and often, molecular genetic testing. Although many aspects of the workup for acute leukemia are well accepted, few guidelines have addressed the different aspects of the diagnostic evaluation of samples from patients suspected to have acute leukemia. OBJECTIVE - To develop a guideline for treating physicians and pathologists involved in the diagnostic and prognostic evaluation of new acute leukemia samples, including acute lymphoblastic leukemia, acute myeloid leukemia, and acute leukemias of ambiguous lineage. DESIGN - The College of American Pathologists and the American Society of Hematology convened a panel of experts in hematology and hematopathology to develop recommendations. A systematic evidence review was conducted to address 6 key questions. Recommendations were derived from strength of evidence, feedback received during the public comment period, and expert panel consensus. RESULTS - Twenty-seven guideline statements were established, which ranged from recommendations on what clinical and laboratory information should be available as part of the diagnostic and prognostic evaluation of acute leukemia samples to what types of testing should be performed routinely, with recommendations on where such testing should be performed and how the results should be reported. CONCLUSIONS - The guideline provides a framework for the multiple steps, including laboratory testing, in the evaluation of acute leukemia samples. Some aspects of the guideline, especially molecular genetic testing in acute leukemia, are rapidly changing with new supportive literature, which will require on-going updates for the guideline to remain relevant.
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13
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Basso-Ricci L, Scala S, Milani R, Migliavacca M, Rovelli A, Bernardo ME, Ciceri F, Aiuti A, Biasco L. Multiparametric Whole Blood Dissection: A one-shot comprehensive picture of the human hematopoietic system. Cytometry A 2017; 91:952-965. [PMID: 28609016 PMCID: PMC5697613 DOI: 10.1002/cyto.a.23148] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Revised: 04/11/2017] [Accepted: 05/17/2017] [Indexed: 12/12/2022]
Abstract
Human hematopoiesis is a complex and dynamic system where morphologically and functionally diverse mature cell types are generated and maintained throughout life by bone marrow (BM) Hematopoietic Stem/Progenitor Cells (HSPC). Congenital and acquired hematopoietic disorders are often diagnosed through the detection of aberrant frequency or composition of hematopoietic cell populations. We here describe a novel protocol, called “Whole Blood Dissection” (WBD), capable of analyzing in a single test‐tube, hematopoietic progenitors and all major mature cell lineages composing either BM or peripheral blood (PB) through a multiparametric flow‐cytometry analysis. WBD allows unambiguously identifying in the same tube up to 23 different blood cell types including HSPC subtypes and all the major myeloid and lymphoid lineage compartments at different stages of maturation, through a combination of 17 surface and 1 viability cell markers. We assessed the efficacy of WBD by analyzing BM and PB samples from adult (n = 8) and pediatric (n = 9) healthy donors highlighting age‐related shift in cell composition. We also tested the capability of WBD on detecting aberrant hematopoietic cell composition in clinical samples of patients with primary immunodeficiency or leukemia unveiling expected and novel hematopoietic unbalances. Overall, WBD allows unambiguously identifying >99% of the cell subpopulations composing a blood sample in a reproducible, standardized, cost‐, and time‐efficient manner. This tool has a wide range of potential pre‐clinical and clinical applications going from the characterization of hematopoietic disorders to the monitoring of hematopoietic reconstitution in patients after transplant or gene therapy. © 2017 The Authors. Cytometry Part A Published by Wiley Periodicals, Inc. on behalf of ISAC.
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Affiliation(s)
- Luca Basso-Ricci
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), San Raffaele Scientific Institute, Milan, 20132, Italy
| | - Serena Scala
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), San Raffaele Scientific Institute, Milan, 20132, Italy
| | - Raffaella Milani
- Cytometry Laboratory, San Raffaele Scientific Institute, Milan, Italy
| | - Maddalena Migliavacca
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), San Raffaele Scientific Institute, Milan, 20132, Italy.,San Raffaele Scientific Institute, Pediatric Immunohematology and Bone Marrow Transplantation Unit, Milan, Italy
| | - Attilio Rovelli
- BMT Unit, Pediatric Department, Milano-Bicocca University, MBBM Foundation, Monza, Italy
| | - Maria Ester Bernardo
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), San Raffaele Scientific Institute, Milan, 20132, Italy.,San Raffaele Scientific Institute, Pediatric Immunohematology and Bone Marrow Transplantation Unit, Milan, Italy
| | - Fabio Ciceri
- San Raffaele Scientific Institute, Hematology and Bone Marrow Transplantation Unit, Milan, Italy
| | - Alessandro Aiuti
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), San Raffaele Scientific Institute, Milan, 20132, Italy.,San Raffaele Scientific Institute, Pediatric Immunohematology and Bone Marrow Transplantation Unit, Milan, Italy.,Vita Salute San Raffaele University, Milan, Italy
| | - Luca Biasco
- San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), San Raffaele Scientific Institute, Milan, 20132, Italy
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Minimal Residual Disease in Acute Myeloid Leukemia of Adults: Determination, Prognostic Impact and Clinical Applications. Mediterr J Hematol Infect Dis 2016; 8:e2016052. [PMID: 27872732 PMCID: PMC5111512 DOI: 10.4084/mjhid.2016.052] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Accepted: 09/12/2016] [Indexed: 02/06/2023] Open
Abstract
Pretreatment assessment of cytogenetic/genetic signature of acute myeloid leukemia (AML) has been consistently shown to play a major prognostic role but also to fail at predicting outcome on individual basis, even in low-risk AML. Therefore, we are in need of further accurate methods to refine the patients’ risk allocation process, distinguishing more adequately those who are likely to recur from those who are not. In this view, there is now evidence that the submicroscopic amounts of leukemic cells (called minimal residual disease, MRD), measured during the course of treatment, indicate the quality of response to therapy. Therefore, MRD might serve as an independent, additional biomarker to help to identify patients at higher risk of relapse. Detection of MRD requires the use of highly sensitive ancillary techniques, such as polymerase chain reaction (PCR) and multiparametric flow cytometry(MPFC). In the present manuscript, we will review the current approaches to investigate MRD and its clinical applications in AML management.
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15
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Eissa DS, Kandeel EZ, Ghareeb M. Human myeloid inhibitory C-lectin: a highly specific and stable acute myeloid leukemia marker. Hematol Oncol 2016; 35:814-820. [PMID: 27734526 DOI: 10.1002/hon.2352] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 07/01/2016] [Accepted: 08/10/2016] [Indexed: 12/24/2022]
Abstract
The prognosis of acute myeloid leukemia (AML) is poor because of relapses occurring on conventional chemotherapy. The distinction between leukemic and normal stem cells relies on the expression of antigen combinations defining leukemia-associated immunophenotypes (LAIPs), which are absent or extremely infrequent in normal bone marrow. However, LAIPs are very different from patient to patient and are not necessarily stable over the course of the disease. Accordingly, we addressed the applicability of human myeloid inhibitory C-lectin (hMICL) by flow cytometry as a specific leukemic myeloid stem cell marker for the diagnosis of AML in CD34+ and CD34- cases and evaluated the stability of hMICL during the course of the disease. hMICL expression was assessed in 78 bone marrow aspirate specimens obtained from AML patients at diagnosis (n = 40), complete remission (CR) (n = 28), and relapse (n = 10). AML patients at diagnosis were compared to 20 newly diagnosed acute lymphoblastic leukemia (ALL) patients and 20 healthy controls. hMICL was reevaluated in CR and relapse specimens. hMICL was expressed in 100% AML patients at diagnosis (mean ± standard deviation [SD], 60.3 ± 19.9%), both CD34+ and CD34- , but not in ALL (mean ± SD, 3.3 ± 1.9%) or healthy controls (mean ± SD, 3.4 ± 2.6%) (P < .001). hMICL median fluorescence intensity ratio was higher in AML (mean ± SD, 15.9 ± 11.7) compared to ALL (mean ± SD, 4.5 ± 1.4) and healthy controls (mean ± SD, 4.4 ± 1.6) (P < .001). hMICL was expressed in all studied AML morphologic subtypes. Preserved stable expression of hMICL was found in CR and relapse specimens with no antigen loss. hMICL is a robust pan-AML-associated antigen with excellent diagnostic impact, extreme specificity to AML blasts, and stability throughout the course of the disease. hMICL could be incorporated into the routine flow cytometry setting within the initial diagnostic work-up and follow-up of AML.
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Affiliation(s)
- Deena Samir Eissa
- Department of Clinical Pathology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Eman Zaghloul Kandeel
- Department of Clinical Pathology, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Mohamed Ghareeb
- Department of Medical Oncology, National Cancer Institute, Cairo University, Cairo, Egypt
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16
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The role of multiparametric flow cytometry in the detection of minimal residual disease in acute leukaemia. Pathology 2015; 47:609-21. [DOI: 10.1097/pat.0000000000000319] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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17
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Minimal residual disease evaluation by flow cytometry is a complementary tool to cytogenetics for treatment decisions in acute myeloid leukaemia. Leuk Res 2015; 40:1-9. [PMID: 26598032 DOI: 10.1016/j.leukres.2015.10.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 09/07/2015] [Accepted: 10/07/2015] [Indexed: 12/16/2022]
Abstract
The clinical utility of minimal residual disease (MRD) analysis in acute myeloid leukaemia (AML) is not yet defined. We analysed the prognostic impact of MRD level at complete remision after induction therapy using multiparameter flow cytometry in 306 non-APL AML patients. First, we validated the prognostic value of MRD-thresholds we have previously proposed (≥ 0.1%; ≥ 0.01-0.1%; and <0.01), with a 5-year RFS of 38%, 50% and 71%, respectively (p=0.002). Cytogenetics is the most relevant prognosis factor in AML, however intermediate risk cytogenetics represent a grey zone that require other biomarkers for risk stratification, and we show that MRD evaluation discriminate three prognostic subgroups (p=0.03). Also, MRD assessments yielded relevant information on favourable and adverse cytogenetics, since patients with favourable cytogenetics and high MRD levels have poor prognosis and patients with adverse cytogenetics but undetectable MRD overcomes the adverse prognosis. Interestingly, in patients with intermediate or high MRD levels, intensification with transplant improved the outcome as compared with chemotherapy, while the type of intensification therapy did not influenced the outcome of patients with low MRD levels. Multivariate analysis revealed age, MRD and cytogenetics as independent variables. Moreover, a scoring system, easy in clinical practice, was generated based on MRD level and cytogenetics.
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18
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Buccisano F, Maurillo L, Piciocchi A, Del Principe MI, Sarlo C, Cefalo M, Ditto C, Di Veroli A, De Santis G, Irno Consalvo M, Fraboni D, Panetta P, Palomba P, Attrotto C, Del Poeta G, Sconocchia G, Lo-Coco F, Amadori S, Venditti A. Minimal residual disease negativity in elderly patients with acute myeloid leukemia may indicate different postremission strategies than in younger patients. Ann Hematol 2015; 94:1319-26. [PMID: 25869029 DOI: 10.1007/s00277-015-2364-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 03/22/2015] [Indexed: 11/29/2022]
Abstract
In the present analysis, we evaluated whether in elderly acute myeloid leukemia (AML) patients (>60 years), minimal residual disease (MRD) assessed by flow cytometry may have a role in guiding choice of postremission strategies. We analyzed 149 young and 61 elderly adults who achieved morphological CR after induction course of EORTC/GIMEMA protocols. Elderly patients reached a postconsolidation MRD negative status less frequently than younger ones (11 vs 28 %, p = 0.009). MRD negativity resulted in a longer 5-year disease-free survival (DFS) both in elderly (57 vs 13 %, p = 0.0197) and in younger patients (56 vs 31 %, p = 0.0017). Accordingly, 5-year cumulative incidence of relapse (CIR) of both elderly (83 vs 42 %, p = 0.045) and younger patients (59 vs 24 % p = NS) who were MRD positive doubled that of MRD negative ones. Nevertheless, CIR of MRD negative elderly patients was twofold higher than that of younger MRD negative ones (42 vs 24 %, p = NS). In conclusion, elderly patients in whom chemotherapy yields a MRD negative CR have duration of DFS and rate of CIR significantly better than those who remain MRD positive. Nonetheless, the high CIR rate observed in the elderly suggests that MRD negativity might have different therapeutic implications in this population than in the younger counterpart.
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Affiliation(s)
- F Buccisano
- Ematologia, Dipartimento di Biomedicina e Prevenzione, Università di Roma "Tor Vergata", Roma, Italia,
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19
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Roug AS, Hansen MC, Nederby L, Hokland P. Diagnosing and following adult patients with acute myeloid leukaemia in the genomic age. Br J Haematol 2014; 167:162-76. [PMID: 25130287 DOI: 10.1111/bjh.13048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Accepted: 06/04/2014] [Indexed: 12/24/2022]
Abstract
The diagnosis and follow-up process of adult patients with acute myeloid leukaemia (AML) is challenging to clinicians and laboratory staff alike. While several sets of recommendations have been published over the years, the development of high throughput screening and characterization for both genetic and epigenetic events have evolved with astonishing speed. Here we attempt to provide a practical guide to diagnose and follow adult AML patients with a focus on how to balance the wealth of information on the one hand, with the restriction put on these processes in terms of time, feasibility and economy when caring for these patients, on the other.
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Affiliation(s)
- Anne S Roug
- Department of Haematology, Aarhus University Hospital, Aarhus C, Denmark
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20
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Bastos-Oreiro M, Perez-Corral A, Martínez-Laperche C, Bento L, Pascual C, Kwon M, Balsalobre P, Muñoz C, Buces E, Serrano D, Gayoso J, Buño I, Anguita J, Diéz-Martín JL. Prognostic impact of minimal residual disease analysis by flow cytometry in patients with acute myeloid leukemia before and after allogeneic hemopoietic stem cell transplantation. Eur J Haematol 2014; 93:239-46. [DOI: 10.1111/ejh.12336] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/02/2014] [Indexed: 01/22/2023]
Affiliation(s)
- Mariana Bastos-Oreiro
- Servicio de Hematología y Hemoterapia; Hospital General Universitario Gregorio Marañón; Madrid Spain
- Instituto de Investigación Sanitaria Gregorio Marañón; Madrid Spain
| | - Ana Perez-Corral
- Servicio de Hematología y Hemoterapia; Hospital General Universitario Gregorio Marañón; Madrid Spain
- Instituto de Investigación Sanitaria Gregorio Marañón; Madrid Spain
| | - Carolina Martínez-Laperche
- Servicio de Hematología y Hemoterapia; Hospital General Universitario Gregorio Marañón; Madrid Spain
- Instituto de Investigación Sanitaria Gregorio Marañón; Madrid Spain
| | - Leyre Bento
- Servicio de Hematología y Hemoterapia; Hospital General Universitario Gregorio Marañón; Madrid Spain
| | - Cristina Pascual
- Servicio de Hematología y Hemoterapia; Hospital General Universitario Gregorio Marañón; Madrid Spain
- Instituto de Investigación Sanitaria Gregorio Marañón; Madrid Spain
| | - Mi Kwon
- Servicio de Hematología y Hemoterapia; Hospital General Universitario Gregorio Marañón; Madrid Spain
- Instituto de Investigación Sanitaria Gregorio Marañón; Madrid Spain
| | - Pascual Balsalobre
- Servicio de Hematología y Hemoterapia; Hospital General Universitario Gregorio Marañón; Madrid Spain
- Instituto de Investigación Sanitaria Gregorio Marañón; Madrid Spain
| | - Cristina Muñoz
- Servicio de Hematología y Hemoterapia; Hospital General Universitario Gregorio Marañón; Madrid Spain
| | - Elena Buces
- Servicio de Hematología y Hemoterapia; Hospital General Universitario Gregorio Marañón; Madrid Spain
- Instituto de Investigación Sanitaria Gregorio Marañón; Madrid Spain
| | - David Serrano
- Servicio de Hematología y Hemoterapia; Hospital General Universitario Gregorio Marañón; Madrid Spain
- Instituto de Investigación Sanitaria Gregorio Marañón; Madrid Spain
| | - Jorge Gayoso
- Servicio de Hematología y Hemoterapia; Hospital General Universitario Gregorio Marañón; Madrid Spain
- Instituto de Investigación Sanitaria Gregorio Marañón; Madrid Spain
| | - Ismael Buño
- Servicio de Hematología y Hemoterapia; Hospital General Universitario Gregorio Marañón; Madrid Spain
- Instituto de Investigación Sanitaria Gregorio Marañón; Madrid Spain
| | - Javier Anguita
- Servicio de Hematología y Hemoterapia; Hospital General Universitario Gregorio Marañón; Madrid Spain
- Instituto de Investigación Sanitaria Gregorio Marañón; Madrid Spain
| | - José Luís Diéz-Martín
- Servicio de Hematología y Hemoterapia; Hospital General Universitario Gregorio Marañón; Madrid Spain
- Instituto de Investigación Sanitaria Gregorio Marañón; Madrid Spain
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Rossi G, Minervini MM, Melillo L, di Nardo F, de Waure C, Scalzulli PR, Perla G, Valente D, Sinisi N, Cascavilla N. Predictive role of minimal residual disease and log clearance in acute myeloid leukemia: a comparison between multiparameter flow cytometry and Wilm's tumor 1 levels. Ann Hematol 2014; 93:1149-57. [PMID: 24554303 DOI: 10.1007/s00277-014-2029-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Accepted: 02/03/2014] [Indexed: 11/29/2022]
Abstract
In acute myeloid leukemia (AML), the detection of minimal residual disease (MRD) as well as the degree of log clearance similarly identifies patients with poor prognosis. No comparison was provided between the two approaches in order to identify the best one to monitor follow-up patients. In this study, MRD and clearance were assessed by both multiparameter flow cytometry (MFC) and WT1 expression at different time points on 45 AML patients achieving complete remission. Our results by WT1 expression showed that log clearance lower than 1.96 after induction predicted the recurrence better than MRD higher than 77.0 copies WT1/10(4) ABL. Conversely, on MFC, MRD higher than 0.2 % after consolidation was more predictive than log clearance below 2.64. At univariate and multivariate analysis, positive MRD values and log clearance below the optimal cutoffs were associated with a shorter disease-free survival (DFS). At the univariate analysis, positive MRD values were also associated with overall survival (OS). Therefore, post-induction log clearance by WT1 and post-consolidation MRD by MFC represented the most informative approaches to identify the relapse. At the optimal timing of assessment, positive MRD and log-clearance values lower than calculated thresholds similarly predicted an adverse prognosis in AML.
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Affiliation(s)
- Giovanni Rossi
- Department of Hematology and Stem Cell Transplant Unit, IRCCS "Casa Sollievo della Sofferenza" Hospital, v.le Cappuccini 1, 71013, San Giovanni Rotondo, Italy,
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22
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Rossi G, Nomdedéu Guinot JF, Fontana A, Minervini MM, García-Dabrio MC, Cascavilla N. CD117-CD15 in acute myeloid leukemia: no role as LAIP in the study of minimal residual disease. Eur J Haematol 2013; 90:171-4. [PMID: 23167809 DOI: 10.1111/ejh.12042] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cornet E, Dumézy F, Roumier C, Lepelley P, Jouy N, Philippe N, Renneville A, Berthon C, Nelken B, Quesnel B, Preudhomme C. Involvement of a common progenitor cell in core binding factor acute myeloid leukaemia associated with mastocytosis. Leuk Res 2012; 36:1330-3. [PMID: 22871474 DOI: 10.1016/j.leukres.2012.07.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Revised: 05/29/2012] [Accepted: 07/02/2012] [Indexed: 10/28/2022]
Abstract
In core binding factor (CBF) acute myeloid leukaemia (AML), realtime quantitative PCR is useful to quantify the fusion transcript ratio (CBFβ-MYH11 and AML1-ETO, in case of inv(16) and t(8;21) respectively) in peripheral blood and bone marrow during the courses of chemotherapy, in order to monitor minimal residual disease (MRD). In two cases of CBF AML associated with systemic mastocytosis (SM), the persistence of mast cells and the detection of a high ratio of fusion transcript, in bone marrow, during the courses of chemotherapy, led us to determine whether the mast cell component of the disease carried the same molecular alterations as leukaemic blasts. We demonstrate that sorted mast cells carried CBF abnormality. These observations point out the lack of specificity of MRD monitoring by RQ-PCR in these exceptional AML cases with SM. Moreover, this suggests that leukaemic blasts and mast cells derive from a common malignant progenitor.
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Affiliation(s)
- Edouard Cornet
- Laboratoire d'Hématologie, Centre de Biologie Pathologie, CHU Lille, Lille, France
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Comparison between multiparameter flow cytometry and WT1-RNA quantification in monitoring minimal residual disease in acute myeloid leukemia without specific molecular targets. Leuk Res 2012; 36:401-6. [DOI: 10.1016/j.leukres.2011.11.020] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2011] [Revised: 11/20/2011] [Accepted: 11/27/2011] [Indexed: 11/22/2022]
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25
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Porwit A. Role of flow cytometry in diagnostics of myelodysplastic syndromes--beyond the WHO 2008 classification. Semin Diagn Pathol 2012; 28:273-82. [PMID: 22195405 DOI: 10.1053/j.semdp.2011.06.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Multiparameter flow cytometry (FCM) is an excellent method to follow the expression patterns of differentiation antigens using monoclonal antibodies to surface and cytoplasmic proteins. Although several authors described various aberrant immunophenotypic features in the bone marrow of patients with myelodysplastic syndromes (MDS), the World Health Organization 2008 classification recommended that, only if 3 or more phenotypic abnormalities are found involving 1 or more of the myeloid lineages can the aberrant FCM findings be considered suggestive of MDS. In the absence of conclusive morphologic and/or cytogenetic features, FCM abnormalities alone were considered not sufficient to establish MDS diagnosis and further follow-up of the patients was recommended. Review of the literature gives accumulating evidence that FCM has become an important part of the integrated diagnostic work-up of patients with suspected MDS. Several studies have also reported FCM findings significant for prognosis and therapy choice in MDS patients. Technical progress in multicolor FCM and new analysis programs, together with ongoing efforts to standardize the methodology, will make it possible to apply FCM in individual risk assessment and choice of best therapy for MDS patients.
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Affiliation(s)
- Anna Porwit
- Department of Laboratory Hematology, University Health Network, Toronto, Ontario, Canada.
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Minimal residual disease markers before and after allogeneic hematopoietic stem cell transplantation in acute myeloid leukemia. Curr Opin Hematol 2012; 18:381-7. [PMID: 21986564 DOI: 10.1097/moh.0b013e32834bac7d] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
PURPOSE OF REVIEW This study will review the role of minimal residual disease (MRD) in predicting leukemia relapse following an allogeneic hematopoietic stem cell transplant (HSCT) for acute myeloid leukemia (AML). RECENT FINDINGS PCR and multiparameter flow cytometry (MFC) assays are the most important methods of identifying MRD. PCR technique allows to recognize early genetic abnormalities of residual leukemic cells with high specificity and sensitivity. MFC assay using six-color to 10-color technology is an alternative option for MRD monitoring in AML patients without gene markers to detect leukemia-associated immunophenotype antigens (LAIPs). SUMMARY Despite the evidence that early detection of MRD after allogeneic HSCT is associated with a high risk of hematological relapse, it is still unclear whether this information can be translated into clinical practice, in order to prevent hematological relapse.
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Abstract
Technological advances in flow cytometry include increasingly sophisticated instruments and an expanding range of fluorochromes. These advances are making it possible to detect an increasing number of markers on a single cell. The term polychromatic flow cytometry applies to such systems that detect five or more markers simultaneously. This review provides an overview of the current and future impact of polychromatic flow cytometry in the clinical laboratory. The use of multiple markers has several advantages in the diagnosis and monitoring of haematological malignancies. Cell populations can be analysed more comprehensively and efficiently, and abnormal populations can be distinguished more readily when normal counterparts are present. Polychromatic flow cytometry is particularly useful in the evaluation of plasma cells, and the role of flow cytometry in the assessment of plasma cell disorders is reviewed in depth. There is improved sensitivity in the assessment of small populations, which is critical in the evaluation of minimal residual disease. Flow cytometry can also play a role in assessment of circulating tumour cells in carcinoma. Introduction of polychromatic flow cytometry is a complex process with many challenges including design of antibody panels and instrument compensation. Developments in data analysis are required to realise the full benefits of the other technical advances. Standardisation of protocols may reduce inter-laboratory variation. While the complexity of polychromatic flow cytometry creates challenges, it has substantial potential to improve clinical analysis.
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28
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Prognostic and therapeutic implications of minimal residual disease detection in acute myeloid leukemia. Blood 2011; 119:332-41. [PMID: 22039260 DOI: 10.1182/blood-2011-08-363291] [Citation(s) in RCA: 181] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
Abstract
The choice of either induction or postremission therapy for adults with acute myeloid leukemia is still largely based on the "one size fits all" principle. Moreover, pretreatment prognostic parameters, especially chromosome and gene abnormalities, may fail in predicting individual patient outcome. Measurement of minimal residual disease (MRD) is nowadays recognized as a potential critical tool to assess the quality of response after chemotherapy and to plan postremission strategies that are, therefore, driven by the individual risk of relapse. PCR and multiparametric flow cytometry have become the most popular methods to investigate MRD because they have been established as sensitive and specific enough to allow MRD to be studied serially. In the present review, we examine the evidence supporting the appropriateness of incorporating MRD detection into the AML risk assessment process. A comprehensive prognostic algorithm, generated by combining pretreatment cytogenetics/genetics and posttreatment MRD determination, should promote advances in development of personalized therapeutic approaches.
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Larsen HØ, Roug AS, Just T, Brown GD, Hokland P. Expression of the hMICL in acute myeloid leukemia-a highly reliable disease marker at diagnosis and during follow-up. CYTOMETRY PART B-CLINICAL CYTOMETRY 2011; 82:3-8. [PMID: 22173921 DOI: 10.1002/cyto.b.20614] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Revised: 07/24/2011] [Accepted: 07/25/2011] [Indexed: 12/21/2022]
Abstract
BACKGROUND Stable flow cytometric markers for malignant myeloid cells are highly warranted. Based on data from stem cell research, we hypothesized that the human inhibitory C-type lectin like receptor (hMICL) might represent a novel diagnostic and prognostic vehicle in a standard flow cytometry (FCM) setting. METHODS Standard four-color FCM was employed to uncover the expression patterns of hMICL in bone marrow in a test set of 55 retrospectively collected diagnostic acute myeloid leukemia (AML) samples and in a set of 36 prospectively collected diagnostic AML samples. RESULTS Ninety-two percent of the AML patients stained positive for hMICL and in the otherwise poorly characterized CD34 negative patient group hMICL staining revealed a very homogenous expression profile in the blast cell compartment with a mean of 88% hMICL positive cells. Moreover, hMICL displayed significantly higher expression in AML as compared with normal donors as measured by median fluorescence intensity (MFI) ratios (P = 0.01). There was no difference in hMICL MFI ratios between the CD34 positive and the CD34 negative subgroups (P = 0.89). Importantly, there was no difference in MFI ratios between paired diagnostic and relapse samples (P = 0.76) in 23 cases studied, indicating stable expression of hMICL during the course of the disease. In contrast to the other stem cell associated antigens analyzed (CD34, CD96, CD117, and CD133), hMICL was expressed on myeloid blast cells only, revealing hMICL as a diagnostic marker in AML. CONCLUSION These data identify hMICL as a myeloid leukemia-associated antigen and establishes its applicability for diagnosis and follow-up of AML patients in a standard FCM setting.
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Affiliation(s)
- Hanne Ø Larsen
- Department of Hematology, The Laboratory of Immunohematology, Aarhus University Hospital, Aarhus, Denmark
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Pedreira CE, Costa ES, Almeida J, Fernandez C, Quijano S, Flores J, Barrena S, Lecrevisse Q, Van Dongen JJM, Orfao A. A probabilistic approach for the evaluation of minimal residual disease by multiparameter flow cytometry in leukemic B-cell chronic lymphoproliferative disorders. Cytometry A 2009; 73A:1141-50. [PMID: 18836994 DOI: 10.1002/cyto.a.20638] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Multiparameter flow cytometry has become an essential tool for monitoring response to therapy in hematological malignancies, including B-cell chronic lymphoproliferative disorders (B-CLPD). However, depending on the expertise of the operator minimal residual disease (MRD) can be misidentified, given that data analysis is based on the definition of expert-based bidimensional plots, where an operator selects the subpopulations of interest. Here, we propose and evaluate a probabilistic approach based on pattern classification tools and the Bayes theorem, for automated analysis of flow cytometry data from a group of 50 B-CLPD versus normal peripheral blood B-cells under MRD conditions, with the aim of reducing operator-associated subjectivity. The proposed approach provided a tool for MRD detection in B-CLPD by flow cytometry with a sensitivity of < or =8 x 10(-5) (median of < or =2 x 10(-7)). Furthermore, in 86% of B-CLPD cases tested, no events corresponding to normal B-cells were wrongly identified as belonging to the neoplastic B-cell population at a level of < or =10(-7). Thus, this approach based on the search for minimal numbers of neoplastic B-cells similar to those detected at diagnosis could potentially be applied with both a high sensitivity and specificity to investigate for the presence of MRD in virtually all B-CLPD. Further studies evaluating its efficiency in larger series of patients, where reactive conditions and non-neoplastic disorders are also included, are required to confirm these results.
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Affiliation(s)
- C E Pedreira
- Faculty of Medicine and COPPE-PEE Engineering Graduate Program, UFRJ/Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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