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Testa U, Leone G, Pelosi E, Castelli G, De Stefano V. Is It Possible to Predict Tumor Progression Through Genomic Characterization of Monoclonal Gammopathy and Smoldering Multiple Myeloma? Mediterr J Hematol Infect Dis 2024; 16:e2024044. [PMID: 38882455 PMCID: PMC11178066 DOI: 10.4084/mjhid.2024.044] [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: 03/20/2024] [Accepted: 04/16/2024] [Indexed: 06/18/2024] Open
Abstract
The study of monoclonal serum proteins has led to the generation of two major theories: one proposing that individuals who had monoclonal proteins without any symptoms or evidence of end-organ damage have a benign condition, the other one suggesting that some individuals with asymptomatic monoclonal proteins may progress to multiple myeloma and thus are affected by a monoclonal gammopathy of undetermined significance (MGUS). Longitudinal studies of subjects with MGUS have supported the second theory. Subsequent studies have characterized and defined the existence of another precursor of multiple myeloma, smoldering multiple myeloma (SMM), intermediate between MGUS and multiple myeloma. Primary molecular events, chromosome translocations, and chromosome number alterations resulting in hyperploidy, required for multiple myeloma development, are already observed in myeloma precursors. MGUS and SMM are heterogeneous conditions with the presence of tumors with distinct pathogenic phenotypes and clinical outcomes. The identification of MGUS and SMM patients with a molecularly defined high risk of progression to MM offers the unique opportunity of early intervention with a therapeutic approach on a low tumor burden.
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Affiliation(s)
- Ugo Testa
- Istituto Superiore di Sanità, Roma, Italy
| | - Giuseppe Leone
- Section of Hematology, Department of Radiological and Hematological Sciences, Catholic University, Rome, Italy
| | | | | | - Valerio De Stefano
- Section of Hematology, Department of Radiological and Hematological Sciences, Catholic University, Rome, Italy
- Department of Laboratory and Hematological Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
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Aarabi M, Yoest JM, Farah R, Rajkovic A, Swerdlow SH, Yatsenko SA. A Novel Integrated Approach for Cytogenomic Evaluation of Plasma Cell Neoplasms. J Mol Diagn 2022; 24:1067-1078. [PMID: 35940519 DOI: 10.1016/j.jmoldx.2022.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 06/24/2022] [Accepted: 07/19/2022] [Indexed: 12/29/2022] Open
Abstract
Plasma cell neoplasm (PCN) is associated with characteristic chromosomal aberrations of diagnostic and prognostic significance. The presence of a small percentage of neoplastic cells is a drawback in the application of karyotyping and fluorescence in situ hybridization for the evaluation of bone marrow aspirate. The analysis of samples enriched for CD138+ cells has improved the detection rate. However, fluorescence in situ hybridization requires several probes and may not be completed due to a limited number of isolated cells. To address the issues experienced with the conventional approach, a novel integrated protocol that consists of whole-genome amplification of DNA isolated from CD138+ cells, followed by microarray as well as one fluorescence in situ hybridization assay for balanced IGH gene rearrangements, has been developed. In the present study in a cohort of 56 patients with clinical suspicion for PCN, compared to conventional cytogenetic analysis, this approach provided higher yield in the detection of PCN-related abnormalities, irrespective of the initial percentage of plasma cells. Whole-genome profiling uncovered recurrent chromosomal abnormalities of prognostic value, including unbalanced alterations within the MYC locus, 16q loss, and hypodiploidy, that were not otherwise detectable by conventional methods. The proposed approach is cost-efficient and provides a superior detection rate, required for proper risk stratification and differential diagnosis of PCN regardless of initial plasma cell percentage.
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Affiliation(s)
- Mahmoud Aarabi
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jennifer M Yoest
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Rafic Farah
- Hillman Cancer Center, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Aleksandar Rajkovic
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Pathology, University of California-San Francisco, San Francisco, California; Department of Obstetrics, Gynecology and Reproductive Sciences, University of California-San Francisco, San Francisco, California; Institute of Human Genetics, University of California-San Francisco, San Francisco, California
| | - Steven H Swerdlow
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Svetlana A Yatsenko
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Human Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania.
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Rebmann Chigrinova E, Porret NA, Andres M, Wiedemann G, Banz Y, Legros M, Pollak M, Oppliger Leibundgut E, Pabst T, Bacher U. Correlation of plasma cell assessment by phenotypic methods and molecular profiles by NGS in patients with plasma cell dyscrasias. BMC Med Genomics 2022; 15:203. [PMID: 36138464 PMCID: PMC9503268 DOI: 10.1186/s12920-022-01346-1] [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: 10/20/2021] [Accepted: 09/01/2022] [Indexed: 11/25/2022] Open
Abstract
Background Next-generation sequencing (NGS) detects somatic mutations in a high proportion of plasma cell dyscrasias (PCD), but is currently not integrated into diagnostic routine. We correlated NGS data with degree of bone marrow (BM) involvement by cytomorphology (BMC), histopathology (BMH), and multiparameter flow cytometry (MFC) in 90 PCD patients.
Methods Of the 90 patients the diagnoses comprised multiple myeloma (n = 77), MGUS (n = 7), AL-amyloidosis (n = 4) or solitary plasmocytoma (n = 2). The NGS panel included eight genes CCND1, DIS3, EGR1, FAM46C (TENT5C), FGFR3, PRDM1, TP53, TRAF3, and seven hotspots in BRAF, IDH1, IDH2, IRF4, KRAS, NRAS. Results Mutations were detected in 64/90 (71%) of cases. KRAS (29%), NRAS (16%) and DIS3 (16%) were most frequently mutated. At least one mutation/sample corresponded to a higher degree of BM involvement with a mean of 11% pathologic PC by MFC (range, 0.002–62%), and ~ 50% (3–100%) as defined by both BMC and BMH. Conclusions The probability of detecting a mutation by NGS in the BM was highest in samples with > 10% clonal PC by MFC, or > 20% PC by BMC/ BMH. We propose further evaluation of these thresholds as a practical cut-off for processing of samples by NGS at initial PCD diagnosis. Supplementary Information The online version contains supplementary material available at 10.1186/s12920-022-01346-1.
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Affiliation(s)
| | - Naomi A Porret
- Department of Hematology; Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Martin Andres
- Department of Hematology; Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Gertrud Wiedemann
- Department of Hematology; Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Yara Banz
- Institute of Pathology, University of Bern, Bern, Switzerland
| | - Myriam Legros
- Center for Laboratory Medicine (ZLM), Inselspital, University of Bern, Bern, Switzerland
| | - Matthias Pollak
- Department of Hematology; Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | | | - Thomas Pabst
- Department of Medical Oncology, Inselspital, University of Bern, Bern, Switzerland
| | - Ulrike Bacher
- Department of Hematology; Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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Advances in MGUS diagnosis, risk stratification, and management: introducing myeloma-defining genomic events. Hematology 2021; 2021:662-672. [DOI: 10.1182/hematology.2021000303] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
In the 1960s, Dr Jan Waldenström argued that patients who had monoclonal proteins without any symptoms or evidence of end-organ damage represented a benign monoclonal gammopathy. In 1978, Dr Robert Kyle introduced the concept of “monoclonal gammopathy of undetermined significance” (MGUS) given that, at diagnosis, it was not possible with available methods (ie, serum protein electrophoresis to define the concentration of M-proteins and microscopy to determine the plasma cell percentage in bone marrow aspirates) to determine which patients would ultimately progress to multiple myeloma. The application of low-input whole-genome sequencing (WGS) technology has circumvented previous problems related to volume of clonal plasma cells and contamination by normal plasma cells and allowed for the interrogation of the WGS landscape of MGUS. As discussed in this chapter, the distribution of genetic events reveals striking differences and the existence of 2 biologically and clinically distinct entities of asymptomatic monoclonal gammopathies. Thus, we already have genomic tools to identify “myeloma-defining genomic events,” and consequently, it is reasonable to consider updating our preferred terminologies. When the clinical field is ready to move forward, we should be able to consolidate current terminologies—from current 7 clinical categories: low-risk MGUS, intermediate-risk MGUS, high-risk MGUS, low-risk smoldering myeloma, intermediate-risk smoldering myeloma, high-risk smoldering myeloma, and multiple myeloma—to future 3 genomic-based categories: monoclonal gammopathy, early detection of multiple myeloma (in which myeloma-defining genomic events already have been acquired), and multiple myeloma (patients who are already progressing and clinically defined cases). Ongoing investigations will continue to advance the field.
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Croucher DC, Richards LM, Tsofack SP, Waller D, Li Z, Wei EN, Huang XF, Chesi M, Bergsagel PL, Sebag M, Pugh TJ, Trudel S. Longitudinal single-cell analysis of a myeloma mouse model identifies subclonal molecular programs associated with progression. Nat Commun 2021; 12:6322. [PMID: 34732728 PMCID: PMC8566524 DOI: 10.1038/s41467-021-26598-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 10/12/2021] [Indexed: 12/16/2022] Open
Abstract
Molecular programs that underlie precursor progression in multiple myeloma are incompletely understood. Here, we report a disease spectrum-spanning, single-cell analysis of the Vκ*MYC myeloma mouse model. Using samples obtained from mice with serologically undetectable disease, we identify malignant cells as early as 30 weeks of age and show that these tumours contain subclonal copy number variations that persist throughout progression. We detect intratumoural heterogeneity driven by transcriptional variability during active disease and show that subclonal expression programs are enriched at different times throughout early disease. We then show how one subclonal program related to GCN2 stress response is progressively activated during progression in myeloma patients. Finally, we use chemical and genetic perturbation of GCN2 in vitro to support this pathway as a therapeutic target in myeloma. These findings therefore present a model of precursor progression in Vκ*MYC mice, nominate an adaptive mechanism important for myeloma survival, and highlight the need for single-cell analyses to understand the biological underpinnings of disease progression.
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Affiliation(s)
- Danielle C Croucher
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
| | - Laura M Richards
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
| | - Serges P Tsofack
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Daniel Waller
- Department of Medicine, McGill University, Montréal, QC, Canada
| | - Zhihua Li
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Ellen Nong Wei
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Xian Fang Huang
- Department of Medicine, McGill University, Montréal, QC, Canada
| | - Marta Chesi
- Division of Hematology/Oncology, Mayo Clinic, Scottsdale, AZ, USA
| | - P Leif Bergsagel
- Division of Hematology/Oncology, Mayo Clinic, Scottsdale, AZ, USA
| | - Michael Sebag
- Department of Medicine, McGill University, Montréal, QC, Canada
| | - Trevor J Pugh
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada.
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada.
- Ontario Institute for Cancer Research, Toronto, ON, Canada.
| | - Suzanne Trudel
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada.
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada.
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Bisht K, Walker B, Kumar SK, Spicka I, Moreau P, Martin T, Costa LJ, Richter J, Fukao T, Macé S, van de Velde H. Chromosomal 1q21 abnormalities in multiple myeloma: a review of translational, clinical research, and therapeutic strategies. Expert Rev Hematol 2021; 14:1099-1114. [PMID: 34551651 DOI: 10.1080/17474086.2021.1983427] [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] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Multiple myeloma (MM) remains an incurable disease with a median overall survival of approximately 5 years. Gain or amplification of 1q21 (1q21+) occurs in around 40% of patients with MM and generally portends a poor prognosis. Patients with MM who harbor 1q21+ are at increased risk of drug resistance, disease progression, and death. New pharmacotherapies with novel modes of action are required to overcome the negative prognostic impact of 1q21+. Areas covered: This review discusses the detection, biology, prognosis, and therapeutic targeting of 1q21+ in newly diagnosed and relapsed MM. Patients with MM and 1q21+ tend to present with higher tumor burden, greater end-organ damage, and more co-occurring high-risk cytogenetic abnormalities than patients without 1q21+. The chromosomal rearrangements associated with 1q21+ result in dysregulation of genes involved in oncogenesis. Identification and characterization of the 1q21+ molecular targets are needed to inform on prognosis and treatment strategy. Clinical trial data are emerging that addition of isatuximab to combination therapies may improve outcomes in patients with 1q21+ MM. Expert opinion: In the next 5 years, the results of ongoing research and trials are likely to focus on the therapeutic impact and treatment decisions associated with 1q21+ in MM.
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Affiliation(s)
- Kamlesh Bisht
- Oncology Therapeutic Area, Sanofi Research and Development, Cambridge, MA, USA
| | - Brian Walker
- Melvin and Bren Simon Comprehensive Cancer Center, Division of Hematology Oncology, Indiana University, Indianapolis, IN, USA
| | - Shaji K Kumar
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Ivan Spicka
- First Department of Medicine, Department of Hematology, First Faculty of Medicine, Charles University and General Hospital, Prague, Czech Republic
| | - Philippe Moreau
- Department of Hematology, University Hospital of Nantes, Nantes, France
| | - Tom Martin
- Department of Medicine, University of California, San Francisco, CA, USA
| | - Luciano J Costa
- Division of Hematology and Oncology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Joshua Richter
- Division of Hematology and Medical Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York City, NY, USA
| | - Taro Fukao
- Oncology Therapeutic Area, Sanofi Research and Development, Cambridge, MA, USA
| | - Sandrine Macé
- Sanofi Research and Development, Sanofi, Vitry-Sur-Seine, France
| | - Helgi van de Velde
- Oncology Therapeutic Area, Sanofi Research and Development, Cambridge, MA, USA
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7
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Lionetti M, Da Vià MC, Albano F, Neri A, Bolli N, Musto P. Genomics of Smoldering Multiple Myeloma: Time for Clinical Translation of Findings? Cancers (Basel) 2021; 13:3319. [PMID: 34282760 PMCID: PMC8269396 DOI: 10.3390/cancers13133319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 06/25/2021] [Accepted: 06/29/2021] [Indexed: 12/22/2022] Open
Abstract
Smoldering multiple myeloma (SMM) is an asymptomatic disorder of clonal bone marrow (BM) plasma cells (PCs) in between the premalignant condition known as monoclonal gammopathy of undetermined significance and overt multiple myeloma (MM). It is characterized by a deep biological heterogeneity that is reflected in a markedly variable progression risk among patients. Recently proposed risk stratification models mainly rely on indirect markers of disease burden and are unable to identify cases in whom clonal PCs have already undergone the "malignant switch" but major clonal expansion has not occurred yet. In the last years, the application of next-generation sequencing (NGS) techniques has led to profound advances in the understanding of the molecular bases of SMM progression, and in all likelihood, it will contribute to the needed improvement of SMM prognostication. In this Review, we describe the recent advances in characterizing the genomic landscape of SMM and intrinsic determinants of its progression, highlighting their implications in terms of understanding of tumor evolution and prognostication. We also review the main studies investigating the role of the microenvironment in this early disease stage. Finally, we mention the results of the first randomized clinical trials and discuss the potential clinical translability of the genomic insights.
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Affiliation(s)
- Marta Lionetti
- Hematology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (M.L.); (M.C.D.V.); (A.N.)
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy
| | - Matteo C. Da Vià
- Hematology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (M.L.); (M.C.D.V.); (A.N.)
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy
| | - Francesco Albano
- Department of Emergency and Organ Transplantation, “Aldo Moro” University School of Medicine, 70124 Bari, Italy;
| | - Antonino Neri
- Hematology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (M.L.); (M.C.D.V.); (A.N.)
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy
| | - Niccolò Bolli
- Hematology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (M.L.); (M.C.D.V.); (A.N.)
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy
| | - Pellegrino Musto
- Department of Emergency and Organ Transplantation, “Aldo Moro” University School of Medicine, 70124 Bari, Italy;
- Unit of Hematology and Stem Cell Transplantation, AOUC Policlinico, 70124 Bari, Italy
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Whole-genome sequencing reveals progressive versus stable myeloma precursor conditions as two distinct entities. Nat Commun 2021; 12:1861. [PMID: 33767199 PMCID: PMC7994386 DOI: 10.1038/s41467-021-22140-0] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 02/23/2021] [Indexed: 12/22/2022] Open
Abstract
Multiple myeloma (MM) is consistently preceded by precursor conditions recognized clinically as monoclonal gammopathy of undetermined significance (MGUS) or smoldering myeloma (SMM). We interrogate the whole genome sequence (WGS) profile of 18 MGUS and compare them with those from 14 SMMs and 80 MMs. We show that cases with a non-progressing, clinically stable myeloma precursor condition (n = 15) are characterized by later initiation in the patient's life and by the absence of myeloma defining genomic events including: chromothripsis, templated insertions, mutations in driver genes, aneuploidy, and canonical APOBEC mutational activity. This data provides evidence that WGS can be used to recognize two biologically and clinically distinct myeloma precursor entities that are either progressive or stable.
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Hanamura I. Gain/Amplification of Chromosome Arm 1q21 in Multiple Myeloma. Cancers (Basel) 2021; 13:cancers13020256. [PMID: 33445467 PMCID: PMC7827173 DOI: 10.3390/cancers13020256] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/07/2021] [Accepted: 01/09/2021] [Indexed: 02/06/2023] Open
Abstract
Simple Summary Multiple myeloma (MM), a plasma cell neoplasm, is an incurable hematological malignancy. Gain/amplification of chromosome arm 1q21 (1q21+) is the most common adverse genomic abnormality associated with disease progression and drug resistance. While possible mechanisms of 1q21+ occurrence and candidate genes in the 1q21 amplicon have been suggested, the precise pathogenesis of MM with 1q21+ is unknown. Herein, we review the current knowledge about the clinicopathological features of 1q21+ MM, which can assist in effective therapeutic approaches for MM patients with 1q21+. Abstract Multiple myeloma (MM), a plasma cell neoplasm, is an incurable hematological malignancy characterized by complex genetic and prognostic heterogeneity. Gain or amplification of chromosome arm 1q21 (1q21+) is the most frequent adverse chromosomal aberration in MM, occurring in 40% of patients at diagnosis. It occurs in a subclone of the tumor as a secondary genomic event and is more amplified as the tumor progresses and a risk factor for the progression from smoldering multiple myeloma to MM. It can be divided into either 1q21 gain (3 copies) or 1q21 amplification (≥4 copies), and it has been suggested that the prognosis is worse in cases of amplification than gain. Trisomy of chromosome 1, jumping whole-arm translocations of chromosome1q, and tandem duplications lead to 1q21+ suggesting that its occurrence is not consistent at the genomic level. Many studies have reported that genes associated with the malignant phenotype of MM are situated on the 1q21 amplicon, including CKS1B, PSMD4, MCL1, ANP32E, and others. In this paper, we review the current knowledge regarding the clinical features, prognostic implications, and the speculated pathology of 1q21+ in MM, which can provide clues for an effective treatment approach to MM patients with 1q21+.
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Affiliation(s)
- Ichiro Hanamura
- Division of Hematology, Department of Internal Medicine, Aichi Medical University School of Medicine, 1-1, Karimata, Yazako, Nagakute, Aichi 480-1195, Japan
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Maura F, Landgren O, Morgan GJ. Designing Evolutionary-based Interception Strategies to Block the Transition from Precursor Phases to Multiple Myeloma. Clin Cancer Res 2021; 27:15-23. [PMID: 32759358 PMCID: PMC7785564 DOI: 10.1158/1078-0432.ccr-20-1395] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/17/2020] [Accepted: 07/31/2020] [Indexed: 11/16/2022]
Abstract
The development of next-generation sequencing technology has dramatically improved our understanding of the genetic landscape of multiple myeloma. Several new drivers and recurrent events have been reported and linked to a potential driver role. This complex landscape is enhanced by intraclonal mutational heterogeneity and variability introduced through the dimensions of time and space. The evolutionary history of multiple myeloma is driven by both the accumulation of different genomic drivers and by the activity of different mutational processes active overtime. In this review, we describe how these new findings and sequencing technologies have been progressively allowed to understand and reshape our knowledge of the complexity of multiple myeloma at each of its developmental stages: premalignant, at diagnosis, and in relapsed/refractory states. We discuss how these evolutionary concepts can be utilized in the clinic to alter evolutionary trajectories providing a framework for therapeutic intervention at early-disease stages.
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Affiliation(s)
- Francesco Maura
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York.
| | - Ola Landgren
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York.
| | - Gareth J Morgan
- Perlmutter Cancer Center, New York University Langone Health, New York, New York.
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11
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Maura F, Bolli N, Rustad EH, Hultcrantz M, Munshi N, Landgren O. Moving From Cancer Burden to Cancer Genomics for Smoldering Myeloma: A Review. JAMA Oncol 2020; 6:425-432. [PMID: 31830214 DOI: 10.1001/jamaoncol.2019.4659] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Importance All patients who develop multiple myeloma have a preceding asymptomatic expansion of clonal plasma cells, clinically recognized as monoclonal gammopathy of undetermined significance or smoldering multiple myeloma (SMM). During the past decade, significant progress has been made in the classification and risk stratification of SMM. Observations This review summarizes current clinical challenges and discusses available models for risk stratification in the context of SMM. Owing to several novel, more effective, and less toxic drugs, these aspects are becoming increasingly important to identify patients eligible for early treatment. However, all proposed criteria were built around indirect markers of disease burden and therefore are generally able to identify a fraction of patients with SMM in whom transformation to multiple myeloma and genomic subclonal diversification are already happening. In contrast, next-generation sequencing approaches have the potential to identify myeloma precursor disease that will progress even before the major clonal expansion and progression, providing a potential base for more effective treatment and better precision regarding the optimal timing of treatment initiation. Conclusions and Relevance Owing to modern technologies, in the near future, prognostic models derived from genomic signatures independent of the disease burden will allow better identification of the optimal timing to treat a plasma cell clonal disorder at the very early stages, when the chances of eradication are higher.
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Affiliation(s)
- Francesco Maura
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York.,Cancer Genome Project, Wellcome Trust Sanger Institute, Cambridgeshire, United Kingdom
| | - Niccolò Bolli
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy.,Department of Hematology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Even H Rustad
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Malin Hultcrantz
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Nikhil Munshi
- Jerome Lipper Multiple Myeloma Center, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts.,Veterans Administration Boston Healthcare System, West Roxbury, Massachusetts
| | - Ola Landgren
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
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12
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Bolli N, Martinelli G, Cerchione C. The molecular pathogenesis of multiple myeloma. Hematol Rep 2020; 12:9054. [PMID: 33408844 PMCID: PMC7772755 DOI: 10.4081/hr.2020.9054] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 11/29/2022] Open
Abstract
Multiple Myeloma (MM) is characterized by uncontrolled proliferation and accumulation of clonal plasma cells within the bone marrow. However, the cell of origin is a B-lymphocyte acquiring aberrant genomic events in the germinal center of a lymph node as off-target events during somatichypermutation and class-switch recombination driven by activation-induced-deaminase. Whether pre-germinal center events are also required for transformation, and which additional events are required for disease progression is still matter of debate. As early treatment in asymptomatic phases is gaining traction in the clinic, a better understanding of the molecular pathogenesis of myeloma progression would allow stratification of patients based on their risk of progression, thus rationalizing efficacy and cost of clinical interventions. In this review, we will discuss the development of MM, from the cell of origin through asymptomatic stages such as monoclonal gammopathy of undetermined significance and smoldering MM, to the development of symptomatic disease. We will explain the genetic heterogeneity of MM, one of the major drivers of disease recurrence. In this context, moreover, we will propose how this knowledge may influence future diagnostic and therapeutic interventions.
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Affiliation(s)
- Niccolò Bolli
- Department of Oncology and Hemato- Oncology, University of Milan, Italy
- Hematology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Giovanni Martinelli
- Hematology Unit, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Claudio Cerchione
- Hematology Unit, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
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Da Vià MC, Ziccheddu B, Maeda A, Bagnoli F, Perrone G, Bolli N. A Journey Through Myeloma Evolution: From the Normal Plasma Cell to Disease Complexity. Hemasphere 2020; 4:e502. [PMID: 33283171 PMCID: PMC7710229 DOI: 10.1097/hs9.0000000000000502] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 10/19/2020] [Indexed: 02/06/2023] Open
Abstract
The knowledge of cancer origin and the subsequent tracking of disease evolution represent unmet needs that will soon be within clinical reach. This will provide the opportunity to improve patient's stratification and to personalize treatments based on cancer biology along its life history. In this review, we focus on the molecular pathogenesis of multiple myeloma (MM), a hematologic malignancy with a well-known multi-stage disease course, where such approach can sooner translate into a clinical benefit. We describe novel insights into modes and timing of disease initiation. We dissect the biology of the preclinical and pre-malignant phases, elucidating how knowledge of the genomics of the disease and the composition of the microenvironment allow stratification of patients based on risk of disease progression. Then, we explore cell-intrinsic and cell-extrinsic drivers of MM evolution to symptomatic disease. Finally, we discuss how this may relate to the development of refractory disease after treatment. By integrating an evolutionary view of myeloma biology with the recent acquisitions on its clonal heterogeneity, we envision a way to drive the clinical management of the disease based on its detailed biological features more than surrogates of disease burden.
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Affiliation(s)
- Matteo C. Da Vià
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Bachisio Ziccheddu
- Department of Molecular Biotechnologies and Health Sciences, University of Turin, Turin, Italy
| | - Akihiro Maeda
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Filippo Bagnoli
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
- Department of Clinical Oncology and Hematology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Giulia Perrone
- Department of Clinical Oncology and Hematology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Niccolò Bolli
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
- Department of Clinical Oncology and Hematology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
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14
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Aktas Samur A, Minvielle S, Shammas M, Fulciniti M, Magrangeas F, Richardson PG, Moreau P, Attal M, Anderson KC, Parmigiani G, Avet-Loiseau H, Munshi NC, Samur MK. Deciphering the chronology of copy number alterations in Multiple Myeloma. Blood Cancer J 2019; 9:39. [PMID: 30914633 PMCID: PMC6435669 DOI: 10.1038/s41408-019-0199-3] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 03/07/2019] [Accepted: 03/12/2019] [Indexed: 01/09/2023] Open
Abstract
Multiple myeloma (MM) and its precursor condition MGUS are characterized by chromosomal aberrations. Here, we comprehensively characterize the order of occurrence of these complex genomic events underlying MM development using 500 MGUS, and MM samples. We identify hyperdiploid MM (HMM) and non-HMM as genomically distinct entities with different evolution of the copy number alterations. In HMM, gains of 9,15 or 19 are the first and clonal events observed as clonal even at MGUS stage. These events are thus early and may underlie initial transformation of normal plasma cells to MGUS cells. However, CNAs may not be adequate for progression to MM except in 15% of the patients in whom the complex subclonal deletion events are observed in MM but not MGUS. In NHMM, besides the driver translocations, clonal deletion of 13 and 1q gain are early events also observed in MGUS. We combined this information to propose a timeline for copy number alteration.
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Affiliation(s)
- Anil Aktas Samur
- Department of Data Sciences, Dana Farber Cancer Institute, Boston, MA, 02215, USA.,Department of Biostatistics, Harvard T.H. Chan School of Public Health Boston, Boston, MA, 02115, USA
| | - Stephane Minvielle
- Inserm UMR892, CNRS 6299, Université de Nantes; Centre Hospitalier Universitaire de Nantes, Unité Mixte de Genomique du Cancer, Nantes, France
| | - Masood Shammas
- Department of Medical Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, 02115, USA.,VA Boston Healthcare System, Boston, MA, 02115, USA
| | - Mariateresa Fulciniti
- Department of Medical Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Florence Magrangeas
- Inserm UMR892, CNRS 6299, Université de Nantes; Centre Hospitalier Universitaire de Nantes, Unité Mixte de Genomique du Cancer, Nantes, France
| | - Paul G Richardson
- Department of Medical Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Philippe Moreau
- Inserm UMR892, CNRS 6299, Université de Nantes; Centre Hospitalier Universitaire de Nantes, Unité Mixte de Genomique du Cancer, Nantes, France
| | - Michel Attal
- University Cancer Center of Toulouse Institut National de la Santé, Toulouse, France
| | - Kenneth C Anderson
- Department of Medical Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Giovanni Parmigiani
- Department of Data Sciences, Dana Farber Cancer Institute, Boston, MA, 02215, USA.,Department of Biostatistics, Harvard T.H. Chan School of Public Health Boston, Boston, MA, 02115, USA
| | - Hervé Avet-Loiseau
- University Cancer Center of Toulouse Institut National de la Santé, Toulouse, France. .,Unité de Génomique du Myélome, IUC-Oncopole 2 Avenue Hubert Curien Cedex 1, Toulouse, 31037, France.
| | - Nikhil C Munshi
- Department of Medical Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, 02115, USA. .,VA Boston Healthcare System, Boston, MA, 02115, USA.
| | - Mehmet Kemal Samur
- Department of Data Sciences, Dana Farber Cancer Institute, Boston, MA, 02215, USA. .,Department of Biostatistics, Harvard T.H. Chan School of Public Health Boston, Boston, MA, 02115, USA. .,Department of Medical Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, 02115, USA.
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15
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Ouyang W, Zhao X, Lu S, Wang Z. Prevalence of monoclonal gammopathy of uncertain significance in chronic myeloid leukemia: A case report. Medicine (Baltimore) 2018; 97:e13103. [PMID: 30383696 PMCID: PMC6221681 DOI: 10.1097/md.0000000000013103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
RATIONALE The abnormal cell types in chronic myeloid leukemia (CML) and monoclonal gammopathy of uncertain (MGUS) are quite different, being myeloid and plasma cells, respectively. The coexistence of CML and MGUS is an uncommon event, which is seldom reported in literature. PATIENT CONCERNS A 52-year-old female was diagnosed with CML in April 2001. From November 2006, the patient started on imatinib mesylate and kept a complete hematologic and cytogenetic response for nearly 11 years. During her follow-up on July 7, 2017, thrombocytopenia (35*109/L) was found. Bone marrow aspiration revealed 6% plasma cell infiltration. Serum immunoelectrophoresis revealed 1.24 g/dL of serum monoclonal (M) protein of IgG-κ type. DIAGNOSIS MGUS was diagnosed because of absence of anemia, hypercalcemia, lytic bone lesions, or renal failure. Immune thrombocytopenia (ITP) was also diagnosed in this patient following the detection of antiplatelet autoantibodies. Complex karyotype and missense mutation in PRDM1 were identified. INTERVENTIONS Because of her obvious decrease of platelets, she started treatment with thalidomide and prednisone. OUTCOMES Three months later, bone marrow aspirate showed disappearance of plasma cells. There developed an abrupt decrease in IgG and the absence of M-spike in serum immunoelectrophoresis. The platelet count kept normal during 1 year follow-up. LESSONS Karyotypic event and gene mutation found in this case may be the initiation of disease transformation. Administration of thalidomide and prednisone proved effective in this patient.
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16
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Saxe D, Seo EJ, Bergeron MB, Han JY. Recent advances in cytogenetic characterization of multiple myeloma. Int J Lab Hematol 2018; 41:5-14. [PMID: 29971938 DOI: 10.1111/ijlh.12882] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Accepted: 06/08/2018] [Indexed: 12/21/2022]
Abstract
The detection of cytogenetic abnormalities in multiple myeloma (MM) has received more importance over last years for risk stratification and the new risk-adapted treatment strategies. Conventional G-banding analysis should be included in a routine procedure for the initial diagnostic workup for patients suspected of MM. However, the detection of chromosomal abnormalities in MM by conventional cytogenetics is limited owing to the low proliferative activity of malignant plasma cells as well as the low number of plasma cells in bone marrow specimens. Fluorescence in situ hybridization (FISH) or microarray-based technologies can overcome some of those drawbacks and detect specific target arrangements as well as chromosomal copy number changes. In this review, we will discuss different cytogenetic approaches and compare their strength and weakness to provide genetic information for risk stratification and prediction of outcome in MM patients.
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Affiliation(s)
- Debra Saxe
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Eul-Ju Seo
- Department of Laboratory Medicine, College of Medicine and Asan Medical Center, University of Ulsan, Seoul, Korea
| | - Melanie Beaulieu Bergeron
- Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, ON, Canada.,Department of Genetics, Children's Hospital of Eastern Ontario, Ottawa, ON, Canada
| | - Jin-Yeong Han
- Department of Laboratory Medicine, Dong-A University College of Medicine, Busan, Korea
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17
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van Nieuwenhuijzen N, Spaan I, Raymakers R, Peperzak V. From MGUS to Multiple Myeloma, a Paradigm for Clonal Evolution of Premalignant Cells. Cancer Res 2018; 78:2449-2456. [PMID: 29703720 DOI: 10.1158/0008-5472.can-17-3115] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 01/16/2018] [Accepted: 03/16/2018] [Indexed: 11/16/2022]
Abstract
Multiple myeloma (MM) is a treatable, but incurable, malignancy of plasma cells (PC) in the bone marrow (BM). It represents the final stage in a continuum of PC dyscrasias and is consistently preceded by a premalignant phase termed monoclonal gammopathy of undetermined significance (MGUS). The existence of this well-defined premalignant phase provides the opportunity to study clonal evolution of a premalignant condition into overt cancer. Unraveling the mechanisms of malignant transformation of PC could enable early identification of MGUS patients at high risk of progression and may point to novel therapeutic targets, thereby possibly delaying or preventing malignant transformation. The MGUS-to-MM progression requires multiple genomic events and the establishment of a permissive BM microenvironment, although it is generally not clear if the various microenvironmental events are causes or consequences of disease progression. Advances in gene-sequencing techniques and the use of serial paired analyses have allowed for a more specific identification of driver lesions. The challenge in cancer biology is to identify and target those lesions that confer selective advantage and thereby drive evolution of a premalignant clone. Here, we review recent advances in the understanding of malignant transformation of MGUS to MM. Cancer Res; 78(10); 2449-56. ©2018 AACR.
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Affiliation(s)
- Niels van Nieuwenhuijzen
- Laboratory of Translational Immunology, University Medical Center, Utrecht, the Netherlands.,Department of Hematology, University Medical Center, Utrecht, the Netherlands
| | - Ingrid Spaan
- Laboratory of Translational Immunology, University Medical Center, Utrecht, the Netherlands
| | - Reinier Raymakers
- Department of Hematology, University Medical Center, Utrecht, the Netherlands
| | - Victor Peperzak
- Laboratory of Translational Immunology, University Medical Center, Utrecht, the Netherlands.
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18
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Smetana J, Oppelt J, Štork M, Pour L, Kuglík P. Chromothripsis 18 in multiple myeloma patient with rapid extramedullary relapse. Mol Cytogenet 2018; 11:7. [PMID: 29375670 PMCID: PMC5774134 DOI: 10.1186/s13039-018-0357-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 01/10/2018] [Indexed: 12/15/2022] Open
Abstract
Background Catastrophic chromosomal event known as chromothripsis was proven to be a significant hallmark of poor prognosis in several cancer diseases. While this phenomenon is very rare in among multiple myeloma (MM) patients, its presence in karyotype is associated with very poor prognosis. Case presentation In our case, we report a 62 year female patient with rapid progression of multiple myeloma (MM) into extramedullary disease and short overall survival (OS = 23 months). I-FISH investigation revealed presence of gain 1q21 and hyperdiploidy (+ 5,+ 9,+ 15) in 82% and 86%, respectively, while IgH rearrangements, del(17)(p13) and del(13)(q14) were evaluated as negative.Whole-genome profiling using array-CGH showed complex genomic changes including hyperdiploidy (+ 3,+ 5,+ 9,+ 11, + 15,+ 19), monosomy X, structural gains (1q21-1q23.1, 1q32-1q44, 16p13.13-16p11.2) and losses (1q23.1-1q32.1; 8p23.3-8p11.21) of genetic material and chromothripsis in chromosome 18 with 6 breakpoint areas. Next-generation sequencing showed a total of 338 variants with 1.8% (6/338) of pathological mutations in NRAS (c.181C > A; p.Gln61Lys) or variants of unknown significance in TP53, CUX1 and POU4F1. Conclusions Our findings suggest that presence of chromothripsis should be considered as another important genetic hallmark of poor prognosis in MM patients and utilization of genome-wide screening techniques such as array-CGH and NGS improves the clinical diagnostics of the disease.
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Affiliation(s)
- Jan Smetana
- 1Laboratory of Molecular Cytogenetics, Institute of Experimental Biology, Faculty of Science, Masaryk University, Kotlářská 2, 602 00 Brno, Czech Republic.,2Department of Medical Genetics, University Hospital, Brno, Czech Republic, Černopolní 9, Brno, Czech Republic
| | - Jan Oppelt
- 3CEITEC-Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic.,4National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
| | - Martin Štork
- 5Department of Internal Medicine-Hematooncology, University Hospital Brno, Jihlavská 20, 62500 Brno, Czech Republic
| | - Luděk Pour
- 5Department of Internal Medicine-Hematooncology, University Hospital Brno, Jihlavská 20, 62500 Brno, Czech Republic
| | - Petr Kuglík
- 1Laboratory of Molecular Cytogenetics, Institute of Experimental Biology, Faculty of Science, Masaryk University, Kotlářská 2, 602 00 Brno, Czech Republic.,2Department of Medical Genetics, University Hospital, Brno, Czech Republic, Černopolní 9, Brno, Czech Republic
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19
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Ševčíková T, Growková K, Kufová Z, Filipová J, Vrublová P, Jelínek T, Kořístek Z, Kryukov F, Kryukova E, Hájek R. Biobanking strategy and sample preprocessing for integrative research in monoclonal gammopathies. J Clin Pathol 2017; 70:847-853. [PMID: 28360189 PMCID: PMC5749344 DOI: 10.1136/jclinpath-2017-204329] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 03/03/2017] [Accepted: 03/07/2017] [Indexed: 11/25/2022]
Abstract
AIMS Some types of monoclonal gammopathies are typified by a very limited availability of aberrant cells. Modern research use high throughput technologies and an integrated approach for detailed characterisation of abnormal cells. This strategy requires relatively high amounts of starting material which cannot be obtained from every diagnosis without causing inconvenience to the patient. The aim of this methodological paper is to reflect our long experience with laboratory work and describe the best protocols for sample collection, sorting and further preprocessing in terms of the available number of cells and intended downstream application in monoclonal gammopathies research. Potential pitfalls are also discussed. METHODS Comparison and optimisation of freezing and sorting protocols for plasma cells in monoclonal gammopathies, followed by testing of various nucleic acid isolation and amplification techniques to establish a guideline for sample processing in haemato-oncology research. RESULTS We show the average numbers of aberrant cells that can be obtained from various monoclonal gammopathies (monoclonal gammopathy of undetermined significance/light chain amyloidosis/multiple myeloma (MM)/MM circulating plasma cells/ minimal residual disease MM-10 123/22 846/305 501/68 641/4000 aberrant plasma cells of 48/30/10/16/37×106 bone marrow mononuclear cells) and the expected yield of nucleic acids provided from multiple isolation kits (DNA/RNA yield from 1 to 200×103 cells was 2.14-427/0.12-123 ng). CONCLUSIONS Tested kits for parallel isolation deliver outputs comparable with kits specialised for just one type of molecule. We also present our positive experience with the whole genome amplification method, which can serve as a very powerful tool to gain complex information from a very small cell population.
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Affiliation(s)
- T Ševčíková
- Department of Haemato-oncology, University Hospital Ostrava, Ostrava, Czech Republic
- Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic
| | - K Growková
- Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Ostrava, Czech Republic
| | - Z Kufová
- Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - J Filipová
- Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Ostrava, Czech Republic
| | - P Vrublová
- Department of Haemato-oncology, University Hospital Ostrava, Ostrava, Czech Republic
| | - T Jelínek
- Department of Haemato-oncology, University Hospital Ostrava, Ostrava, Czech Republic
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Ostrava, Czech Republic
| | - Z Kořístek
- Department of Haemato-oncology, University Hospital Ostrava, Ostrava, Czech Republic
- Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic
| | - F Kryukov
- Department of Haemato-oncology, University Hospital Ostrava, Ostrava, Czech Republic
| | - E Kryukova
- Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic
- Babak Myeloma Group, Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - R Hájek
- Department of Haemato-oncology, University Hospital Ostrava, Ostrava, Czech Republic
- Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic
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20
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Muchtar E, Kumar SK, Magen H, Gertz MA. Diagnosis and management of smoldering multiple myeloma: the razor's edge between clonality and cancer. Leuk Lymphoma 2017; 59:288-299. [PMID: 28592156 DOI: 10.1080/10428194.2017.1334124] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Smoldering multiple myeloma (SMM) is a rare plasma cell disorder, and as the disease is asymptomatic, diagnosis is often incidental. SMM is characterized by increased marrow infiltration by clonal plasma cells and/or elevated serum M-protein in the absence of a myeloma-defining event (MDE). In recent years, SMM has gained increased attention owing to a broadening of the criteria for MDE, which include apart from the CRAB criteria, three additional parameters. Survival advantage may be offered by early treatment in the high-risk subset, based on a single trial. In this review, we assess the risk factors and models for progression to multiple myeloma. A review of our diagnostic and management approaches to SMM is presented.
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Affiliation(s)
- Eli Muchtar
- a Division of Hematology , Mayo Clinic , Rochester , MN , USA
| | - Shaji K Kumar
- a Division of Hematology , Mayo Clinic , Rochester , MN , USA
| | - Hila Magen
- b Institute of Hematology, Davidoff cancer center, Beilinson Hospital, Rabin Medical Center, Petah-Tikva and Sackler School of Medicine , Tel-Aviv University , Tel-Aviv , Israel
| | - Morie A Gertz
- a Division of Hematology , Mayo Clinic , Rochester , MN , USA
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21
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Mikulasova A, Wardell CP, Murison A, Boyle EM, Jackson GH, Smetana J, Kufova Z, Pour L, Sandecka V, Almasi M, Vsianska P, Gregora E, Kuglik P, Hajek R, Davies FE, Morgan GJ, Walker BA. The spectrum of somatic mutations in monoclonal gammopathy of undetermined significance indicates a less complex genomic landscape than that in multiple myeloma. Haematologica 2017; 102:1617-1625. [PMID: 28550183 PMCID: PMC5685224 DOI: 10.3324/haematol.2017.163766] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 05/16/2017] [Indexed: 01/10/2023] Open
Abstract
Monoclonal gammopathy of undetermined significance is a pre-malignant precursor of multiple myeloma with a 1% risk of progression per year. Although targeted analyses have shown the presence of specific genetic abnormalities such as IGH translocations, RB1 deletion, 1q gain, hyperdiploidy or RAS gene mutations, little is known about the molecular mechanism of malignant transformation. We performed whole exome sequencing together with comparative genomic hybridization plus single nucleotide polymorphism array analysis in 33 flow-cytometry-separated abnormal plasma cell samples from patients with monoclonal gammopathy of undetermined significance to describe somatic gene mutations and chromosome changes at the genome-wide level. Non-synonymous mutations and copy-number alterations were present in 97.0% and in 60.6% of cases, respectively. Importantly, the number of somatic mutations was significantly lower in monoclonal gammopathy of undetermined significance than in myeloma (P<10-4) and we identified six genes that were significantly mutated in myeloma (KRAS, NRAS, DIS3, HIST1H1E, EGR1 and LTB) within the monoclonal gammopathy of undetermined significance dataset. We also found a positive correlation with increasing chromosome changes and somatic gene mutations. IGH translocations, comprising t(4;14), t(11;14), t(14;16) and t(14;20), were present in 27.3% of cases and in a similar frequency to myeloma, consistent with the primary lesion hypothesis. MYC translocations and TP53 deletions or mutations were not detected in samples from patients with monoclonal gammopathy of undetermined significance, indicating that they may be drivers of progression to myeloma. Data from this study show that monoclonal gammopathy of undetermined significance is genetically similar to myeloma, however overall genetic abnormalities are present at significantly lower levels in monoclonal gammopathy of undetermined significant than in myeloma.
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Affiliation(s)
- Aneta Mikulasova
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA.,Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic.,Department of Medical Genetics, University Hospital Brno, Czech Republic.,Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Christopher P Wardell
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Alexander Murison
- Center for Myeloma Research, Division of Molecular Pathology, Institute of Cancer Research, London, UK
| | - Eileen M Boyle
- Center for Myeloma Research, Division of Molecular Pathology, Institute of Cancer Research, London, UK
| | - Graham H Jackson
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | - Jan Smetana
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic.,Department of Medical Genetics, University Hospital Brno, Czech Republic
| | - Zuzana Kufova
- Faculty of Medicine, University of Ostrava, Czech Republic.,Department of Hematooncology, University Hospital Ostrava, Czech Republic
| | - Ludek Pour
- Department of Internal Medicine, Hematology and Oncology, University Hospital Brno, Czech Republic
| | - Viera Sandecka
- Department of Internal Medicine, Hematology and Oncology, University Hospital Brno, Czech Republic
| | - Martina Almasi
- Department of Clinical Hematology, University Hospital Brno, Czech Republic
| | - Pavla Vsianska
- Department of Clinical Hematology, University Hospital Brno, Czech Republic
| | - Evzen Gregora
- Department of Internal Medicine and Hematology, University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Petr Kuglik
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic.,Department of Medical Genetics, University Hospital Brno, Czech Republic
| | - Roman Hajek
- Faculty of Medicine, University of Ostrava, Czech Republic.,Department of Hematooncology, University Hospital Ostrava, Czech Republic
| | - Faith E Davies
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Gareth J Morgan
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Brian A Walker
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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22
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Mutational landscape reflects the biological continuum of plasma cell dyscrasias. Blood Cancer J 2017; 7:e537. [PMID: 28234344 PMCID: PMC5386334 DOI: 10.1038/bcj.2017.19] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 01/13/2017] [Accepted: 01/25/2017] [Indexed: 01/09/2023] Open
Abstract
We subjected 90 patients covering a biological spectrum of plasma cell dyscrasias (monoclonal gammopathy of undetermined significance (MGUS), amyloid light-chain (AL) amyloidosis and multiple myeloma) to next-generation sequencing (NGS) gene panel analysis on unsorted bone marrow. A total of 64 different mutations in 8 genes were identified in this cohort. NRAS (28.1%), KRAS (21.3%), TP53 (19.5%), BRAF (19.1%) and CCND1 (8.9%) were the most commonly mutated genes in all patients. Patients with non-myeloma plasma cell dyscrasias showed a significantly lower mutational load than myeloma patients (0.91±0.30 vs 2.07±0.29 mutations per case, P=0.008). KRAS and NRAS exon 3 mutations were significantly associated with the myeloma cohort compared with non-myeloma plasma cell dyscrasias (odds ratio (OR) 9.87, 95% confidence interval (CI) 1.07–90.72, P=0.043 and OR 7.03, 95% CI 1.49–33.26, P=0.014). NRAS exon 3 and TP53 exon 6 mutations were significantly associated with del17p cytogenetics (OR 0.12, 95% CI 0.02–0.87, P=0.036 and OR 0.05, 95% CI 0.01–0.54, P=0.013). Our data show that the mutational landscape reflects the biological continuum of plasma cell dyscrasias from a low-complexity mutational pattern in MGUS and AL amyloidosis to a high-complexity pattern in multiple myeloma. Our targeted NGS approach allows resource-efficient, sensitive and scalable mutation analysis for prognostic, predictive or therapeutic purposes.
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23
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MGUS to myeloma: a mysterious gammopathy of underexplored significance. Blood 2016; 128:2599-2606. [PMID: 27737890 DOI: 10.1182/blood-2016-09-692954] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Accepted: 10/04/2016] [Indexed: 12/13/2022] Open
Abstract
All cases of multiple myeloma (MM) are preceded by precursor states termed monoclonal gammopathy of undetermined significance (MGUS) or smoldering myeloma (SMM). Genetic analyses of MGUS cells have provided evidence that it is a genetically advanced lesion, wherein tumor cells carry many of the genetic changes found in MM cells. Intraclonal heterogeneity is also established early during the MGUS phase. Although the genetic features of MGUS or SMM cells at baseline may predict disease risk, transition to MM involves altered growth of preexisting clones. Recent advances in mouse modeling of MGUS suggest that the clinical dormancy of the clone may be regulated in part by growth controls extrinsic to the tumor cells. Interactions of MGUS cells with immune cells, bone cells, and others in the bone marrow niche may be key regulators of malignant transformation. These interactions involve a bidirectional crosstalk leading to both growth-supporting and inhibitory signals. Because MGUS is already a genetically complex lesion, application of new tools for earlier detection should allow delineation of earlier stages, which we term as pre-MGUS Analyses of populations at increased risk of MGUS also suggest the possible existence of a polyclonal phase preceding the development of MGUS. Monoclonal gammopathy in several patients may have potential clinical significance in spite of low risk of malignancy. Understanding the entire spectrum of these disorders may have broader implications beyond prevention of clinical malignancy.
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