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Medina-Herrera A, Sarasquete ME, Jiménez C, Puig N, García-Sanz R. Minimal Residual Disease in Multiple Myeloma: Past, Present, and Future. Cancers (Basel) 2023; 15:3687. [PMID: 37509348 PMCID: PMC10377959 DOI: 10.3390/cancers15143687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Responses to treatment have improved over the last decades for patients with multiple myeloma. This is a consequence of the introduction of new drugs that have been successfully combined in different clinical contexts: newly diagnosed, transplant-eligible or ineligible patients, as well as in the relapsed/refractory setting. However, a great proportion of patients continue to relapse, even those achieving complete response, which underlines the need for updated response criteria. In 2014, the international myeloma working group established new levels of response, prompting the evaluation of minimal residual disease (MRD) for those patients already in complete or stringent complete response as defined by conventional serological assessments: the absence of tumor plasma cells in 100,000 total cells or more define molecular and immunophenotypic responses by next-generation sequencing and flow cytometry, respectively. In this review, we describe all the potential methods that may be used for MRD detection based on the evidence found in the literature, paying special attention to their advantages and pitfalls from a critical perspective.
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Affiliation(s)
- Alejandro Medina-Herrera
- Departament of Hematology, University Hospital of Salamanca (HUSA/IBSAL), CIBERONC, CIC-IBMCC (USAL-CSIC), 37007 Salamanca, Spain
| | - María Eugenia Sarasquete
- Departament of Hematology, University Hospital of Salamanca (HUSA/IBSAL), CIBERONC, CIC-IBMCC (USAL-CSIC), 37007 Salamanca, Spain
| | - Cristina Jiménez
- Departament of Hematology, University Hospital of Salamanca (HUSA/IBSAL), CIBERONC, CIC-IBMCC (USAL-CSIC), 37007 Salamanca, Spain
| | - Noemí Puig
- Departament of Hematology, University Hospital of Salamanca (HUSA/IBSAL), CIBERONC, CIC-IBMCC (USAL-CSIC), 37007 Salamanca, Spain
| | - Ramón García-Sanz
- Departament of Hematology, University Hospital of Salamanca (HUSA/IBSAL), CIBERONC, CIC-IBMCC (USAL-CSIC), 37007 Salamanca, Spain
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Wang N, Tesfaluul N, Li J, Gao X, Liu S, Yue B. Enrichment of circulating myeloma cells by immunomagnetic beads combined with flow cytometry for monitoring minimal residual disease and relapse in patients with multiple myeloma. Ann Hematol 2019; 98:2769-2780. [PMID: 31748925 DOI: 10.1007/s00277-019-03833-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 10/28/2019] [Indexed: 12/14/2022]
Abstract
Difficulty in regularly analyzing marrow myeloma cells (MMCs) and low frequency of circulating myeloma cells (CMCs) in blood presents challenges for monitoring minimal residual disease (MRD) in multiple myeloma (MM). We have developed a set of method for enrichment of CMCs by immunomagetic beads (IMB) combined with flow cytometry (IMB-FCM) based on CD38-APC/CD138-APC antibodies in U266-spiked samples and in 122 patient samples. U266 cell capture efficiency of CD38/CD138-IMB-FCM (6.960, 2.574) was 6- and 2-fold higher than that of FCM (1.032), and the sensitivity of FCM and IMB-FCM was 0.01% and 0.001%, respectively. In MM cohort, the positive rate of CMCs by IMB-FCM increased from 60.5~70.0 to 85~87.2% in newly diagnosed/relapsed and partial remission (PR) patients compared with by FCM (P < 0.05). Two complete remission (CR) patients contain certain amounts of CMCs by IMB-FCM while no CMCs and MMCs were detectable by FCM. Patients exhibiting PR and CR upon therapy had much lower CMC and MMC counts than newly diagnosed/relapsed patients (P < 0.005). Based on MRD measurement in BM and PB samples, all FCM-negative BM samples were also paired with FCM/IMB-FCM-negative PB samples among newly diagnosed, relapsed, and PR patients, and FCM-positive BM samples were accompanied by IMB-FCM-positive results in 88% of corresponding PB samples. CMCs strongly associated with other clinical biomarkers of disease burden, including elevated MMCs, β2-MG, sCrea, and DS and ISS stages, and more serious anemia, bone destruction, and renal impairment (P < 0.05). Logistic regression analysis revealed that elevated β2-MG and moderate-to-more anemia were significant risk factors for the presence of CMCs (P < 0.05). As a noninvasive "liquid biopsy" of monitoring MRD, the potential of IMB-FCM for CMC detection may complement or minimize bone marrow aspiration in future treatment of MM patients.
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Affiliation(s)
- Ningning Wang
- Department of Laboratory Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.,Department of Laboratory Medicine, the First People's Hospital of Pingdingshan, Pingdingshan, Henan, China
| | - Nahom Tesfaluul
- Department of Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jia Li
- Department of Laboratory Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Xiaojuan Gao
- Department of Laboratory Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Shuai Liu
- Department of Laboratory Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.,Faculty of Laboratory Medicine, Zhengzhou University, Zhengzhou, Henan, China.,Key Laboratory Medicine of Henan Province, Faculty of Laboratory Medicine, Zhengzhou University, Zhengzhou, Henan, China
| | - Baohong Yue
- Department of Laboratory Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China. .,Faculty of Laboratory Medicine, Zhengzhou University, Zhengzhou, Henan, China. .,Key Laboratory Medicine of Henan Province, Faculty of Laboratory Medicine, Zhengzhou University, Zhengzhou, Henan, China. .,Open Laboratory, Henan Province Key Subject of Clinical Medicine, Zhengzhou, Henan, China.
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3
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Romano A, Palumbo GA, Parrinello NL, Conticello C, Martello M, Terragna C. Minimal Residual Disease Assessment Within the Bone Marrow of Multiple Myeloma: A Review of Caveats, Clinical Significance and Future Perspectives. Front Oncol 2019; 9:699. [PMID: 31482061 PMCID: PMC6710454 DOI: 10.3389/fonc.2019.00699] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 07/15/2019] [Indexed: 12/11/2022] Open
Abstract
There is an increasing clinical interest in the measure and achievement of minimal residual disease (MRD) negativity in the bone marrow of Multiple Myeloma (MM) patients, as defined equally either by Multicolor Flow Cytometry (MFC) or by Next Generation Sequencing (NGS) technologies. At present, modern technologies allow to detect up to one on 104 or on 105 or even on 106 cells, depending on their throughput. MFC approaches, which have been progressively improved up to the so-called Next Generation Flow (NGF), and NGS, which proved clear advantages over ASO-PCR, can detect very low levels of residual disease in the BM. These methods are actually almost superimposable, in terms of MRD detection power, supporting the lack of unanimous preference for either technique on basis of local availability. However, some technical issues are still open: the optimal assay to use to detect either phenotype (e.g., next generation multidimensional flow cytometry, imaging) or genotype aberrations (e.g., ASO-RQ PCR, digital droplet PCR, NGS) and their standardization, the sample source (BM or peripheral blood, PB) and its pre-processing (red-cell lysis vs. Ficoll, fresh vs. frozen samples, requirement of CD138+ cells enrichment). Overall, MRD negativity is considered as the most powerful predictor of favorable long-term outcomes in MM and is likely to represent the major driver of treatment strategies in the near future. In this manuscript, we reviewed the main pitfalls and caveats of MRD detection within bone marrow in MM patients after front-line therapy, highlighting the improving of the currently employed technology and describing alternative methods for MRD testing in MM, such as liquid biopsy.
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Affiliation(s)
- Alessandra Romano
- Department of Surgery and Medical Specialties, University of Catania, Catania, Italy
| | - Giuseppe Alberto Palumbo
- Division of Hematology, Azienda Ospedaliero-Universitaria Policlinico Vittorio Emanuele di Catania, Catania, Italy
- Dipartimento di Scienze Mediche, Chirurgiche e Tecnologie avanzate “G.F. Ingrassia,” University of Catania, Catania, Italy
| | - Nunziatina Laura Parrinello
- Division of Hematology, Azienda Ospedaliero-Universitaria Policlinico Vittorio Emanuele di Catania, Catania, Italy
- Dipartimento di Scienze Mediche, Chirurgiche e Tecnologie avanzate “G.F. Ingrassia,” University of Catania, Catania, Italy
| | - Concetta Conticello
- Division of Hematology, Azienda Ospedaliero-Universitaria Policlinico Vittorio Emanuele di Catania, Catania, Italy
| | - Marina Martello
- Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale (DIMES), Università degli Studi di Bologna, Bologna, Italy
| | - Carolina Terragna
- Istituto di Ematologia “L.A.Seràgnoli,” Azienda Ospedaliera Sant'Orsola-Malpighi, Bologna, Italy
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Mansilla C, Soria E, Vallejo M, Valiente A, Perez-Juana A, Zabalza A, Hurtado G, Sala F, Ramírez N. Combined Selection System to Lower the Cutoff for Plasma Cell Enrichment Applied to iFISH Analysis in Multiple Myeloma. Transl Oncol 2018; 11:647-652. [PMID: 29604510 PMCID: PMC6054590 DOI: 10.1016/j.tranon.2018.02.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 02/12/2018] [Accepted: 02/12/2018] [Indexed: 12/17/2022] Open
Abstract
Multiple myeloma (MM) is a very heterogeneous disease, characterized by multiple cytogenetic aberrations on plasma cells (PC) that have been traditionally used to predict the outcome of the disease. A mayor issue on the analysis of PC is the sometimes low infiltration of these cells in the bone marrow that hampers cytogenetic studies. To solve this problem we have optimized a selection strategy based on PC immunomagnetic isolation that has allowed us to lower to 1% the minimal PC infiltration requirement without loss of purity, enabling to perform genetic analysis. In this study, we have analyzed 153 bone marrow samples of patients suspected of MM, collected from February 2015 to May 2017 by the Genetics service of the Complejo Hospitalario de Navarra. Clinical characteristics of the patients and PC immunophenotyping, conventional cytogenetics and interphase fluorescence in situ hybridization (iFISH) analyses have been assessed on these samples. In our cohort 90% of the samples had cytogenetic abnormalities, among them 50% presented immunoglobulin rearrangements, 41.9% showed 1q gains, 29.7% showed 1p deletions and 33% presented TP53 deletion.
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Affiliation(s)
- Cristina Mansilla
- Oncohematology Research Group, Navarrabiomed, Complejo Hospitalario de Navarra, Universidad Pública de Navarra, IdiSNA
| | - Elena Soria
- Oncohematology Research Group, Navarrabiomed, Complejo Hospitalario de Navarra, Universidad Pública de Navarra, IdiSNA
| | - Miren Vallejo
- Oncohematology Research Group, Navarrabiomed, Complejo Hospitalario de Navarra, Universidad Pública de Navarra, IdiSNA
| | - Alberto Valiente
- Genetics Service, Complejo Hospitalario de Navarra, IdiSNA (Navarra's Health Research Institute), Pamplona, Spain
| | - Aránzazu Perez-Juana
- Genetics Service, Complejo Hospitalario de Navarra, IdiSNA (Navarra's Health Research Institute), Pamplona, Spain
| | - Amaya Zabalza
- Oncohematology Research Group, Navarrabiomed, Complejo Hospitalario de Navarra, Universidad Pública de Navarra, IdiSNA; Hematology Department, Complejo Hospitalario de Navarra, IdiSNA, Pamplona, Spain
| | - Guillermina Hurtado
- Cytometry Service, Hematology Department, Complejo Hospitalario de Navarra, IdiSNA, Pamplona, Spain
| | - Francisco Sala
- Cytometry Service, Hematology Department, Complejo Hospitalario de Navarra, IdiSNA, Pamplona, Spain
| | - Natalia Ramírez
- Oncohematology Research Group, Navarrabiomed, Complejo Hospitalario de Navarra, Universidad Pública de Navarra, IdiSNA.
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Bai Y, Orfao A, Chim CS. Molecular detection of minimal residual disease in multiple myeloma. Br J Haematol 2017; 181:11-26. [PMID: 29265356 DOI: 10.1111/bjh.15075] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Despite the significantly higher complete remission rates and improved survival achieved in the last decade, multiple myeloma (MM) patients continue to relapse due to persistence of minimal residual disease (MRD). Generally, MRD refers to persistence of low levels of disease in the order of one tumour cell in ≥105 normal cells. Currently, molecular and immunophenotypic techniques are employed for MRD detection. This review focuses on MRD detection by molecular techniques, including allele-specific oligonucleotide polymerase chain reaction (ASO-PCR), next-generation sequencing (NGS) and digital PCR (dPCR), in addition to a brief description of, and comparison with, multiparameter flow cytometry. The basic principles, technical advantages and limitations, and the clinical impact of all three molecular techniques are reviewed and compared. They all have a sensitivity of at least 10-5 , among which ASO real-time quantitative PCR is the most well-standardized, and NGS carries the highest sensitivity and applicability, while dPCR is still under investigation. Furthermore, molecular MRD negativity is a favourable prognostic factor for survival of patients with MM. However, several challenges inherent to molecular detection of MRD still remain to be overcome, particularly false negativity and failure to detect extramedullary disease. Finally, detection of MRD from peripheral blood remains challenging.
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Affiliation(s)
- Yinlei Bai
- Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, Spain
| | - Alberto Orfao
- Department of Medicine, University of Salamanca and University Hospital of Salamanca-IBSAL, Salamanca, Spain
| | - Chor Sang Chim
- Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, Spain
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6
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Kumar S, Paiva B, Anderson KC, Durie B, Landgren O, Moreau P, Munshi N, Lonial S, Bladé J, Mateos MV, Dimopoulos M, Kastritis E, Boccadoro M, Orlowski R, Goldschmidt H, Spencer A, Hou J, Chng WJ, Usmani SZ, Zamagni E, Shimizu K, Jagannath S, Johnsen HE, Terpos E, Reiman A, Kyle RA, Sonneveld P, Richardson PG, McCarthy P, Ludwig H, Chen W, Cavo M, Harousseau JL, Lentzsch S, Hillengass J, Palumbo A, Orfao A, Rajkumar SV, Miguel JS, Avet-Loiseau H. International Myeloma Working Group consensus criteria for response and minimal residual disease assessment in multiple myeloma. Lancet Oncol 2017; 17:e328-e346. [PMID: 27511158 DOI: 10.1016/s1470-2045(16)30206-6] [Citation(s) in RCA: 1774] [Impact Index Per Article: 253.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 05/21/2016] [Accepted: 05/24/2016] [Indexed: 12/16/2022]
Abstract
Treatment of multiple myeloma has substantially changed over the past decade with the introduction of several classes of new effective drugs that have greatly improved the rates and depth of response. Response criteria in multiple myeloma were developed to use serum and urine assessment of monoclonal proteins and bone marrow assessment (which is relatively insensitive). Given the high rates of complete response seen in patients with multiple myeloma with new treatment approaches, new response categories need to be defined that can identify responses that are deeper than those conventionally defined as complete response. Recent attempts have focused on the identification of residual tumour cells in the bone marrow using flow cytometry or gene sequencing. Furthermore, sensitive imaging techniques can be used to detect the presence of residual disease outside of the bone marrow. Combining these new methods, the International Myeloma Working Group has defined new response categories of minimal residual disease negativity, with or without imaging-based absence of extramedullary disease, to allow uniform reporting within and outside clinical trials. In this Review, we clarify several aspects of disease response assessment, along with endpoints for clinical trials, and highlight future directions for disease response assessments.
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Affiliation(s)
- Shaji Kumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA.
| | - Bruno Paiva
- Clinica Universidad de Navarra, Centro de Investigacion Medica Aplicada (CIMA), Pamplona, Spain
| | | | - Brian Durie
- Cedars-Sinai Comprehensive Cancer Center, Los Angeles, CA, USA
| | - Ola Landgren
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | | | - Sagar Lonial
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA, USA
| | | | | | - Meletios Dimopoulos
- Department of Clinical Therapeutics, University of Athens, School of Medicine, Athens, Greece
| | - Efstathios Kastritis
- Department of Clinical Therapeutics, University of Athens, School of Medicine, Athens, Greece
| | - Mario Boccadoro
- Myeloma Unit, Division of Hematology, University of Torino, Azienda Ospedaliero-Universitaria Citta della Salute e della Scienza di Torino, Torino, Italy; Mount Sinai Cancer Institute, New York, NY, USA
| | | | - Hartmut Goldschmidt
- Department of Hematology, Oncology and Rheumatology, University of Heidelberg, Heidelberg, Germany
| | | | - Jian Hou
- Chang Zheng Hospital, Shanghai, China
| | | | - Saad Z Usmani
- Levine Cancer Institute, Carolinas HealthCare System, Charlotte, NC, USA
| | - Elena Zamagni
- Seragnoli Institute of Hematology, Bologna University School of Medicine, Bologna, Italy
| | | | | | - Hans E Johnsen
- Department of Hematology, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
| | - Evangelos Terpos
- Department of Clinical Therapeutics, University of Athens, School of Medicine, Athens, Greece
| | - Anthony Reiman
- Dalhousie University Medical School, Dalhousie, Nova Scotia, Canada
| | - Robert A Kyle
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | | | | | | | - Heinz Ludwig
- Wilhelminenspital Der Stat Wien, Vienna, Austria
| | | | - Michele Cavo
- Seragnoli Institute of Hematology, Bologna University School of Medicine, Bologna, Italy
| | | | | | - Jens Hillengass
- Department of Hematology, Oncology and Rheumatology, University of Heidelberg, Heidelberg, Germany
| | - Antonio Palumbo
- Myeloma Unit, Division of Hematology, University of Torino, Azienda Ospedaliero-Universitaria Citta della Salute e della Scienza di Torino, Torino, Italy
| | - Alberto Orfao
- University Hospital of Salamanca/IBSAL, Salamanca, Spain
| | | | - Jesus San Miguel
- Clinica Universidad de Navarra, Centro de Investigacion Medica Aplicada (CIMA), Pamplona, Spain
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Abstract
Assessment of minimal residual disease (MRD) is becoming standard diagnostic care for potentially curable neoplasms such as some acute leukemias as well as chronic myeloid and lymphocytic leukemia. Although multiple myeloma (MM) remains as an incurable disease, around half of the patients achieve complete remission (CR), and recent data suggests increasing rates of curability with "total-therapy-like" programs. This landscape is likely to be improved with the advent of new antibodies and small molecules. Therefore, conventional serological and morphological techniques have become suboptimal for sensitive evaluation of highly effective treatment strategies. Although, existing data suggests that MRD could be used as a biomarker to evaluate treatment efficacy, help on therapeutic decisions, and act as surrogate for overall survival, the role of MRD in MM is still a matter of extensive debate. Here, we review the different levels of remission used to define depth of response in MM and their clinical significance, as well as the prognostic value and unique characteristics of MRD detection using immunophenotypic, molecular, and imaging techniques. Key facts The higher efficacy of new treatment strategies for MM demand the incorporation of highly sensitive techniques to monitor treatment efficacy MRD could be used as a more potent surrogate biomarker for survival than standard CR We need to understand the pros and cons of the different MRD techniques The time has come to incorporate highly sensitive, cost-effective, readily available, and standardized MRD techniques into clinical trials to assess its role in therapeutic decisions.
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Affiliation(s)
- Bruno Paiva
- Centro de Investigacion Medica Aplicada (CIMA), Clinica Universidad de Navarra, IDISNA, Pamplona, Spain
| | - Ramón García-Sanz
- Hospital Universitario de Salamanca, Centro de Investigación Del Cancer (IBMCC-USAL, CSIC), Instituto de Investigaion Biomedica de Salamanca (IBSAL), Salamanca, Spain
| | - Jesús F San Miguel
- Centro de Investigacion Medica Aplicada (CIMA), Clinica Universidad de Navarra, IDISNA, Pamplona, Spain.
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Paiva B, Puig N, García-Sanz R, San Miguel JF. Is This the Time to Introduce Minimal Residual Disease in Multiple Myeloma Clinical Practice? Clin Cancer Res 2015; 21:2001-8. [DOI: 10.1158/1078-0432.ccr-14-2841] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 02/06/2015] [Indexed: 11/16/2022]
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9
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Vij R, Mazumder A, Klinger M, O'Dea D, Paasch J, Martin T, Weng L, Park J, Fiala M, Faham M, Wolf J. Deep Sequencing Reveals Myeloma Cells in Peripheral Blood in Majority of Multiple Myeloma Patients. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2014; 14:131-139.e1. [DOI: 10.1016/j.clml.2013.09.013] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 09/04/2013] [Accepted: 09/24/2013] [Indexed: 12/15/2022]
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Prognostic value of deep sequencing method for minimal residual disease detection in multiple myeloma. Blood 2014; 123:3073-9. [PMID: 24646471 DOI: 10.1182/blood-2014-01-550020] [Citation(s) in RCA: 322] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
We assessed the prognostic value of minimal residual disease (MRD) detection in multiple myeloma (MM) patients using a sequencing-based platform in bone marrow samples from 133 MM patients in at least very good partial response (VGPR) after front-line therapy. Deep sequencing was carried out in patients in whom a high-frequency myeloma clone was identified and MRD was assessed using the IGH-VDJH, IGH-DJH, and IGK assays. The results were contrasted with those of multiparametric flow cytometry (MFC) and allele-specific oligonucleotide polymerase chain reaction (ASO-PCR). The applicability of deep sequencing was 91%. Concordance between sequencing and MFC and ASO-PCR was 83% and 85%, respectively. Patients who were MRD(-) by sequencing had a significantly longer time to tumor progression (TTP) (median 80 vs 31 months; P < .0001) and overall survival (median not reached vs 81 months; P = .02), compared with patients who were MRD(+). When stratifying patients by different levels of MRD, the respective TTP medians were: MRD ≥10(-3) 27 months, MRD 10(-3) to 10(-5) 48 months, and MRD <10(-5) 80 months (P = .003 to .0001). Ninety-two percent of VGPR patients were MRD(+). In complete response patients, the TTP remained significantly longer for MRD(-) compared with MRD(+) patients (131 vs 35 months; P = .0009).
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11
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García-Castillo H, Leal-Ugarte E, Ortiz Lazareno PC, Barrera-Chairez E, Rosales-García VH, Barros-Núñez P. Detection of monoclonal IGH rearrangements in circulating cells from healthy first-degree relatives of patients with multiple myeloma. Med Oncol 2014; 31:900. [PMID: 24577939 DOI: 10.1007/s12032-014-0900-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Accepted: 02/18/2014] [Indexed: 11/26/2022]
Abstract
Multiple myeloma (MM) is characterized by abnormal proliferation of clonal plasma cells or monoclonal plasmacytosis, resulting in accumulation of clonal immunoglobulins. Monoclonal gammopathy of unknown significance (MGUS) is considered a premorbid stage for developing MM. Studies have shown an increased risk of MGUS in first-degree relatives of patients with MM. Detection of immunoglobulin heavy chain gene (IGH) rearrangement provides a useful tool for assessing clonality. The aim of this study was to determine clonality in peripheral blood samples from 61 healthy first-degree relatives of MM probands by sorting circulating lymphocytes and detection of the IGH rearrangements in these cells. We detected 16 out of 61 (26.2%) relatives with monoclonal complete and incomplete IGH rearrangements; only three of them showed elevated monoclonal immunoglobulin in the serum protein electrophoresis. We conclude that this strategy is able to identify efficiently clonality in peripheral blood samples from first-degree relatives of patients with MM, who have a non-negligible risk of developing MGUS or other plasma cell dyscrasias.
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Affiliation(s)
- Herbert García-Castillo
- División de Genética, Centro de Investigación de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico
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Thiago LS, Perez-Andres M, Balanzategui A, Sarasquete ME, Paiva B, Jara-Acevedo M, Barcena P, Sanchez ML, Almeida J, González M, San Miguel JF, Garcia-Sanz R, Orfao A. Circulating clonotypic B cells in multiple myeloma and monoclonal gammopathy of undetermined significance. Haematologica 2013; 99:155-62. [PMID: 23872308 DOI: 10.3324/haematol.2013.092817] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The B-cell compartment in which multiple myeloma stem cells reside remains unclear. We investigated the potential presence of mature, surface-membrane immunoglobulin-positive B lymphocytes clonally related to the tumor bone marrow plasma cells among different subsets of peripheral blood B cells from ten patients (7 with multiple myeloma and 3 with monoclonal gammopathies of undetermined significance). The presence of clonotypic immunoglobulin heavy chain gene rearrangements was determined in multiple highly-purified fractions of peripheral blood B-lymphocytes including surface-membrane IgM(+) CD27(-) naïve B-lymphocytes, plus surface-membrane IgG(+), IgA(+) and IgM(+) memory CD27(+) B cells, and normal circulating plasma cells, in addition to (mono)clonal plasma cells, by a highly-specific and sensitive allele-specific oligonucleotide polymerase chain reaction directed to the CDR3 sequence of the rearranged IGH gene of tumor plasma cells from individual patients. Our results showed systematic absence of clonotypic rearrangements in all the different B-cell subsets analyzed, including M-component isotype-matched memory B-lymphocytes, at frequencies <0.03 cells/μL (range: 0.0003-0.08 cells/μL); the only exception were the myeloma plasma cells detected and purified from the peripheral blood of four of the seven myeloma patients. These results indicate that circulating B cells from patients with multiple myeloma and monoclonal gammopathies of undetermined significance are usually devoid of clonotypic B cells while the presence of immunophenotypically aberrant myeloma plasma cells in peripheral blood of myeloma patients is a relatively frequent finding.
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13
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Puig N, Sarasquete ME, Balanzategui A, Martínez J, Paiva B, García H, Fumero S, Jiménez C, Alcoceba M, Chillón MC, Sebastián E, Marín L, Montalbán MA, Mateos MV, Oriol A, Palomera L, de la Rubia J, Vidriales MB, Bladé J, Lahuerta JJ, González M, Miguel JFS, García-Sanz R. Critical evaluation of ASO RQ-PCR for minimal residual disease evaluation in multiple myeloma. A comparative analysis with flow cytometry. Leukemia 2013; 28:391-7. [DOI: 10.1038/leu.2013.217] [Citation(s) in RCA: 129] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 06/14/2013] [Accepted: 07/10/2013] [Indexed: 11/09/2022]
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