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Ouyang D, Ye N, Jiang Y, Wang Y, Hu L, Chao S, Yarmush M, Tuner M, Li Y, Tang B. Label-free microfluidic chip for segregation and recovery of circulating leukemia cells: clinical applications in acute myeloid leukemia. Biomed Microdevices 2023; 26:3. [PMID: 38085348 DOI: 10.1007/s10544-023-00687-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/05/2023] [Indexed: 12/18/2023]
Abstract
We present a label-free microfluidic chip for the segregation of circulating leukemia cells (CLCs) from blood samples, with a focus on its clinical applications in Acute Myeloid Leukemia (AML). The microfluidic chip achieved an approximate capture efficiency of 92%. The study analyzed a comprehensive set of 66 blood specimens from AML patients in different disease stages, including newly diagnosed and relapsing cases, patients in complete remission, and those in partial remission. The results showed a significant difference in CLC counts between active disease stages and remission stages (p < 0.0001), with a proposed threshold of 5 CLCs to differentiate between the two. The microfluidic chip exhibited a sensitivity of 95.4% and specificity of 100% in predicting disease recurrence. Additionally, the captured CLCs were subjected to downstream molecular analysis using droplet digital PCR, allowing for the identification of genetic mutations associated with AML. Comparative analysis with bone marrow aspirate processing by FACS demonstrated the reliability and accuracy of the microfluidic chip in tracking disease burden, with highly agreement results obtained between the two methods. The non-invasive nature of the microfluidic chip and its ability to provide real-time insights into disease progression make it a promising tool for the proactive monitoring and personalized patient care of AML.
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Affiliation(s)
- Dongfang Ouyang
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, 02129, USA.
- Shriners Hospital for Children, Boston, MA, 02114, USA.
| | - Ningxin Ye
- Department of Biology, University of Ottawa, Ottawa, ON, K1N 6N5, Canada
| | - Yue Jiang
- Medical Imaging Science, University of Manchester, Manchester, M13 9PL, UK
| | - Yiyang Wang
- Department of Microbiology, Immunology and Molecular Genetics, University of Californiain , Los Angeles, Los Angeles, CA, 90095, USA
| | - Lina Hu
- Department of Hematology, Shenzhen People's Hospital, Shenzhen, 518020, Guangdong, China
| | - Shuen Chao
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, 02129, USA
- Shriners Hospital for Children, Boston, MA, 02114, USA
| | - Martin Yarmush
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, 02129, USA
- Shriners Hospital for Children, Boston, MA, 02114, USA
| | - Memet Tuner
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, 02129, USA
- Shriners Hospital for Children, Boston, MA, 02114, USA
| | - Yonghua Li
- Department of Hematology, PLA General Hospital of Southern Theater Command, Guangzhou , Guangdong, 510010, China
| | - Bin Tang
- Department of Biomedical Engineering, South University of Science and Technology, Shenzhen , Guangdong, 518055, China.
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2
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Ogbue O, Unlu S, Ibodeng GO, Singh A, Durmaz A, Visconte V, Molina JC. Single-Cell Next-Generation Sequencing to Monitor Hematopoietic Stem-Cell Transplantation: Current Applications and Future Perspectives. Cancers (Basel) 2023; 15:cancers15092477. [PMID: 37173944 PMCID: PMC10177286 DOI: 10.3390/cancers15092477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 04/22/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023] Open
Abstract
Acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS) are genetically complex and diverse diseases. Such complexity makes challenging the monitoring of response to treatment. Measurable residual disease (MRD) assessment is a powerful tool for monitoring response and guiding therapeutic interventions. This is accomplished through targeted next-generation sequencing (NGS), as well as polymerase chain reaction and multiparameter flow cytometry, to detect genomic aberrations at a previously challenging leukemic cell concentration. A major shortcoming of NGS techniques is the inability to discriminate nonleukemic clonal hematopoiesis. In addition, risk assessment and prognostication become more complicated after hematopoietic stem-cell transplantation (HSCT) due to genotypic drift. To address this, newer sequencing techniques have been developed, leading to more prospective and randomized clinical trials aiming to demonstrate the prognostic utility of single-cell next-generation sequencing in predicting patient outcomes following HSCT. This review discusses the use of single-cell DNA genomics in MRD assessment for AML/MDS, with an emphasis on the HSCT time period, including the challenges with current technologies. We also touch on the potential benefits of single-cell RNA sequencing and analysis of accessible chromatin, which generate high-dimensional data at the cellular resolution for investigational purposes, but not currently used in the clinical setting.
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Affiliation(s)
- Olisaemeka Ogbue
- Internal Medicine, Cleveland Clinic Fairview Hospital, Cleveland, OH 44111, USA
| | - Serhan Unlu
- Internal Medicine, Cleveland Clinic Fairview Hospital, Cleveland, OH 44111, USA
| | - Gogo-Ogute Ibodeng
- Internal Medicine, Infirmary Health's Thomas Hospital, Fairhope, AL 36607, USA
| | - Abhay Singh
- Department of Hematology Medical Oncology, Taussig Cancer Center, Cleveland Clinic, Cleveland, OH 44106, USA
| | - Arda Durmaz
- Department of Translational Hematology and Oncology Research, Cleveland Clinic Taussig Cancer Center, Cleveland, OH 44106, USA
| | - Valeria Visconte
- Department of Translational Hematology and Oncology Research, Cleveland Clinic Taussig Cancer Center, Cleveland, OH 44106, USA
| | - John C Molina
- Department of Hematology Medical Oncology, Taussig Cancer Center, Cleveland Clinic, Cleveland, OH 44106, USA
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3
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Totiger TM, Ghoshal A, Zabroski J, Sondhi A, Bucha S, Jahn J, Feng Y, Taylor J. Targeted Therapy Development in Acute Myeloid Leukemia. Biomedicines 2023; 11:641. [PMID: 36831175 PMCID: PMC9953553 DOI: 10.3390/biomedicines11020641] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/15/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
Therapeutic developments targeting acute myeloid leukemia (AML) have been in the pipeline for five decades and have recently resulted in the approval of multiple targeted therapies. However, there remains an unmet need for molecular treatments that can deliver long-term remissions and cure for this heterogeneous disease. Previously, a wide range of small molecule drugs were developed to target sub-types of AML, mainly in the relapsed and refractory setting; however, drug resistance has derailed the long-term efficacy of these as monotherapies. Recently, the small molecule venetoclax was introduced in combination with azacitidine, which has improved the response rates and the overall survival in older adults with AML compared to those of chemotherapy. However, this regimen is still limited by cytotoxicity and is not curative. Therefore, there is high demand for therapies that target specific abnormalities in AML while sparing normal cells and eliminating leukemia-initiating cells. Despite this, the urgent need to develop these therapies has been hampered by the complexities of this heterogeneous disease, spurring the development of innovative therapies that target different mechanisms of leukemogenesis. This review comprehensively addresses the development of novel targeted therapies and the translational perspective for acute myeloid leukemia, including the development of selective and non-selective drugs.
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Affiliation(s)
- Tulasigeri M. Totiger
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Anirban Ghoshal
- Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Jenna Zabroski
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Anya Sondhi
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Saanvi Bucha
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Jacob Jahn
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Yangbo Feng
- Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Justin Taylor
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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4
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Zeng Z, Shen H, Gao W, Guo Q, Chen M, Yan X, Liu H, Ji Y. A novel biocompatible Eu-based coordination polymers of cytarabine anticancer drug: Preparation, luminescence properties and in vitro anticancer activity studies. Front Chem 2022; 10:1043810. [DOI: 10.3389/fchem.2022.1043810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 10/21/2022] [Indexed: 11/13/2022] Open
Abstract
In this study, we use cytarabine anticancer drug to synthesize a new rare earth complex with Europium ion. The study work is an attempt to investigate luminescence and biological properties of the Eu-based coordination polymers of cytarabine (Eu-CP-Ara) anticancer drug which have been prepared by us. Eu-CP-Ara has luminescence properties with emission centering at about 619 nm excited with 394 nm. We study cytarabine and Eu-CP-Ara in vitro cytotoxicity. Cytotoxicity of Eu-CP-Ara against lung cancer cells (A549) could even be comparable to the inhibitory effect of cytarabine ligands, showing the advantage of antitumor activity. In addition, Eu-CP-Ara showed lower cytotoxicity to normal liver cells (L02). At the same, from the CLSM images, Eu-CP-Ara has successfully entered the A549 cell. Hence, Eu-CP-Ara can be used as a potential anticancer drug. Eu-CP-Ara may be an effective strategy for the tracking cytarabine against tumours and might impart better accurate treatment effect and therapeutic efficiency.
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5
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Simonsen AT, Meggendorfer M, Hansen MH, Nederby L, Koch S, Hansen M, Rosenberg CA, Kern W, Nyvold CG, Aggerholm A, Haferlach T, Ommen HB. Acute myeloid leukemia displaying clonal instability during treatment: implications for measurable residual disease assessments. Exp Hematol 2022; 107:51-59. [PMID: 35122908 DOI: 10.1016/j.exphem.2022.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 12/15/2021] [Accepted: 01/04/2022] [Indexed: 11/04/2022]
Abstract
Next-generation sequencing (NGS) is an excellent methodology for measuring residual disease in acute myeloid leukemia and survey several sub-clones simultaneously. Little experience exists regarding interpretation of differential clonal responses to therapy. We hypothesize that differential clonal response could best be studied in patients with residual disease at the time of response evaluation. We performed targeted panel sequencing of paired diagnostic and first treatment evaluation samples in 69 patients with residual disease by morphology or measurable residual disease (MRD) level >0.02. Five patients displayed a rising clone at the time of evaluation. A representative case showed the rising clone present only in the putative healthy stem cells (CD45lowCD34+CD38-CD123-CD7-) and not in the putative leukemic stem cells (CD34+CD38-CD123+CD7+) cells, thus representing non-malignant clonal hematopoiesis. In contrast, 17/43 evaluable patients displayed a differential response in genes related to the leukemic clone. 26/43 patients displayed a clonal response that followed the overall treatment response. Patients with a differential response had a better event-free survival (EFS) as well as overall survival (OS) than those where the clonal response followed the overall response (log-rank test, EFS P=0.045, OS, P=0.050). This indicates that when following multiple leukemia-related clones the less chemotherapy-responsive clone could, in some cases, have lesser relapse potential, contrary to what is known when using standard mutation or fusion transcript-based disease surveillance. In conclusion, our results confirm the potential of refining MRD assessments by following multiple clones and warrants further studies into the precise interpretations of multi-clone NGS-MRD assays.
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Affiliation(s)
- Anita T Simonsen
- Department of Hematology, Aarhus University Hospital, Aarhus, Denmark
| | | | - Marcus H Hansen
- Department of Hematology, Aarhus University Hospital, Aarhus, Denmark; Haematology-Pathology Research Laboratory, Research Unit for Haematology and Research Unit for Pathology, University of Southern Denmark and Odense University Hospital, Odense, Denmark
| | - Line Nederby
- Department of Clinical Immunology and Biochemistry, Lillebaelt Hospital, Vejle, Denmark
| | - Sarah Koch
- Munich Leukemia Laboratory GmbH, Munich, Germany
| | - Maria Hansen
- Department of Hematology, Aarhus University Hospital, Aarhus, Denmark
| | | | | | - Charlotte G Nyvold
- Haematology-Pathology Research Laboratory, Research Unit for Haematology and Research Unit for Pathology, University of Southern Denmark and Odense University Hospital, Odense, Denmark
| | - Anni Aggerholm
- Department of Hematology, Aarhus University Hospital, Aarhus, Denmark
| | | | - Hans B Ommen
- Department of Hematology, Aarhus University Hospital, Aarhus, Denmark.
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6
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Benard BA, Leak LB, Azizi A, Thomas D, Gentles AJ, Majeti R. Clonal architecture predicts clinical outcomes and drug sensitivity in acute myeloid leukemia. Nat Commun 2021; 12:7244. [PMID: 34903734 PMCID: PMC8669028 DOI: 10.1038/s41467-021-27472-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 11/17/2021] [Indexed: 12/17/2022] Open
Abstract
The impact of clonal heterogeneity on disease behavior or drug response in acute myeloid leukemia remains poorly understood. Using a cohort of 2,829 patients, we identify features of clonality associated with clinical features and drug sensitivities. High variant allele frequency for 7 mutations (including NRAS and TET2) associate with dismal prognosis; elevated GATA2 variant allele frequency correlates with better outcomes. Clinical features such as white blood cell count and blast percentage correlate with the subclonal abundance of mutations such as TP53 and IDH1. Furthermore, patients with cohesin mutations occurring before NPM1, or transcription factor mutations occurring before splicing factor mutations, show shorter survival. Surprisingly, a branched pattern of clonal evolution is associated with superior clinical outcomes. Finally, several mutations (including NRAS and IDH1) predict drug sensitivity based on their subclonal abundance. Together, these results demonstrate the importance of assessing clonal heterogeneity with implications for prognosis and actionable biomarkers for therapy.
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Affiliation(s)
- Brooks A Benard
- Department of Medicine, Division of Hematology, Cancer Institute, Stanford University, Stanford, CA, USA
- Cancer Biology Program, Stanford University, Stanford, CA, USA
| | - Logan B Leak
- Cancer Biology Program, Stanford University, Stanford, CA, USA
- Department of Biology, Stanford University, Stanford, CA, USA
| | - Armon Azizi
- Department of Medicine, Division of Hematology, Cancer Institute, Stanford University, Stanford, CA, USA
| | - Daniel Thomas
- Department of Medicine, Division of Hematology, Cancer Institute, Stanford University, Stanford, CA, USA
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Andrew J Gentles
- Department of Medicine (Biomedical Informatics/Quantitative Sciences unit), Stanford University, Stanford, CA, USA
| | - Ravindra Majeti
- Department of Medicine, Division of Hematology, Cancer Institute, Stanford University, Stanford, CA, USA.
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7
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Single-cell mutational profiling enhances the clinical evaluation of AML MRD. Blood Adv 2021; 4:943-952. [PMID: 32150611 DOI: 10.1182/bloodadvances.2019001181] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 01/26/2020] [Indexed: 12/11/2022] Open
Abstract
Although most patients with acute myeloid leukemia (AML) achieve clinical remission with induction chemotherapy, relapse rates remain high. Next-generation sequencing enables minimal/measurable residual disease (MRD) detection; however, clinical significance is limited due to difficulty differentiating between pre-leukemic clonal hematopoiesis and frankly malignant clones. Here, we investigated AML MRD using targeted single-cell sequencing (SCS) at diagnosis, remission, and relapse (n = 10 relapsed, n = 4 nonrelapsed), with a total of 310 737 single cells sequenced. Sequence variants were identified in 80% and 75% of remission samples for patients with and without relapse, respectively. Pre-leukemic clonal hematopoiesis clones were detected in both cohorts, and clones with multiple cooccurring mutations were observed in 50% and 0% of samples. Similar clonal richness was observed at diagnosis in both cohorts; however, decreasing clonal diversity at remission was significantly associated with longer relapse-free survival. These results show the power of SCS in investigating AML MRD and clonal evolution.
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8
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Heuser M, Heida B, Büttner K, Wienecke CP, Teich K, Funke C, Brandes M, Klement P, Liebich A, Wichmann M, Neziri B, Chaturvedi A, Kloos A, Mintzas K, Gaidzik VI, Paschka P, Bullinger L, Fiedler W, Heim A, Puppe W, Krauter J, Döhner K, Döhner H, Ganser A, Stadler M, Hambach L, Gabdoulline R, Thol F. Posttransplantation MRD monitoring in patients with AML by next-generation sequencing using DTA and non-DTA mutations. Blood Adv 2021; 5:2294-2304. [PMID: 33929500 PMCID: PMC8114555 DOI: 10.1182/bloodadvances.2021004367] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 03/15/2021] [Indexed: 01/22/2023] Open
Abstract
Next-generation sequencing (NGS)-based measurable residual disease (MRD) monitoring in patients with acute myeloid leukemia (AML) is widely applicable and prognostic prior to allogeneic hematopoietic cell transplantation (alloHCT). We evaluated the prognostic role of clonal hematopoiesis-associated DNMT3A, TET2, and ASXL1 (DTA) and non-DTA mutations for MRD monitoring post-alloHCT to refine MRD marker selection. Of 154 patients with AML, 138 (90%) had at least one mutation at diagnosis, which were retrospectively monitored by amplicon-based error-corrected NGS on day 90 and/or day 180 post-alloHCT. MRD was detected in 34 patients on day 90 and/or day 180 (25%). The rate of MRD positivity was similar when DTA and non-DTA mutations were considered separately (17.6% vs 19.8%). DTA mutations had no prognostic impact on cumulative incidence of relapse, relapse-free survival, or overall survival in our study and were removed from further analysis. In the remaining 131 patients with at least 1 non-DTA mutation, clinical and transplantation-associated characteristics were similarly distributed between MRD-positive and MRD-negative patients. In multivariate analysis, MRD positivity was an independent adverse predictor of cumulative incidence of relapse, relapse-free survival, and overall survival but not of nonrelapse mortality. The prognostic effect was independent of different cutoffs (above limit of detection, 0.1% and 1% variant allele frequency). MRD log-reduction between diagnosis and post-alloHCT assessment had no prognostic value. MRD status post-alloHCT had the strongest impact in patients who were MRD positive prior to alloHCT. In conclusion, non-DTA mutations are prognostic NGS-MRD markers post-alloHCT, whereas the prognostic role of DTA mutations in the posttransplant setting remains open.
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Affiliation(s)
- Michael Heuser
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Bennet Heida
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Konstantin Büttner
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Clara Philine Wienecke
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Katrin Teich
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Carolin Funke
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Maximilian Brandes
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Piroska Klement
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Alessandro Liebich
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Martin Wichmann
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Blerina Neziri
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Anuhar Chaturvedi
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Arnold Kloos
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Konstantinos Mintzas
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Verena I Gaidzik
- Department of Internal Medicine III, University of Ulm, Ulm, Germany
| | - Peter Paschka
- Department of Internal Medicine III, University of Ulm, Ulm, Germany
| | - Lars Bullinger
- Department of Hematology, Oncology, and Tumor Immunology, Charité University Medicine, Berlin, Germany
| | - Walter Fiedler
- Department of Medicine II, Oncological Center, Hubertus Wald University Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Albert Heim
- Department of Virology, Hannover Medical School, Hannover, Germany; and
| | - Wolfram Puppe
- Department of Virology, Hannover Medical School, Hannover, Germany; and
| | - Jürgen Krauter
- Department of Hematology and Oncology, Klinikum Braunschweig, Braunschweig, Germany
| | - Konstanze Döhner
- Department of Internal Medicine III, University of Ulm, Ulm, Germany
| | - Hartmut Döhner
- Department of Internal Medicine III, University of Ulm, Ulm, Germany
| | - Arnold Ganser
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Michael Stadler
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Lothar Hambach
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Razif Gabdoulline
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Felicitas Thol
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
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9
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Yang F, Anekpuritanang T, Press RD. Clinical Utility of Next-Generation Sequencing in Acute Myeloid Leukemia. Mol Diagn Ther 2021; 24:1-13. [PMID: 31848884 DOI: 10.1007/s40291-019-00443-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Acute myeloid leukemia (AML) is a genetically heterogeneous disease that, even with current advancements in therapy, continues to have a poor prognosis. Recurrent somatic mutations have been identified in a core set of pathogenic genes including FLT3 (25-30% prevalence), NPM1 (25-30%), DNMT3A (25-30%), IDH1/2 (5-15%), and TET2 (5-15%), with direct diagnostic, prognostic, and targeted therapeutic implications. Advances in the understanding of the complex mechanisms of AML leukemogenesis have led to the development and recent US Food and Drug Administration (FDA) approval of several targeted therapies: midostaurin and gilteritinib targeting activated FLT3, and ivosidenib and enasidenib targeting mutated IDH1/2. Several additional drug candidates targeting other recurrently mutated gene pathways in AML are also being actively developed. Furthermore, outside of the realm of predicting responses to targeted therapies, many other mutated genes, which comprise the so-called long tail of oncogenic drivers in AML, have been shown to provide clinically useful diagnostic and prognostic information for AML patients. Many of these recurrently mutated genes have also been shown to be excellent biomarkers for post-treatment minimal residual disease (MRD) monitoring for assessing treatment response and predicting future relapse. In addition, the identification of germline mutations in a set of genes predisposing to myeloid malignancies may directly inform treatment decisions (particularly stem cell transplantation) and impact other family members. Recent advances in sequencing technology have made it practically and economically feasible to evaluate many genes simultaneously using next-generation sequencing (NGS). Mutation screening with NGS panels has been recommended by national and international professional guidelines as the standard of care for AML patients. NGS-based detection of the heterogeneous genes commonly mutated in AML has practical clinical utility for disease diagnosis, prognosis, prediction of targeted therapy response, and MRD monitoring.
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Affiliation(s)
- Fei Yang
- Department of Pathology, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, L113, Portland, OR, 97239, USA.,Knight Cancer Institute, Oregon Health and Science University, Portland, OR, USA
| | - Tauangtham Anekpuritanang
- Department of Pathology, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, L113, Portland, OR, 97239, USA.,Department of Pathology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Richard D Press
- Department of Pathology, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, L113, Portland, OR, 97239, USA. .,Knight Cancer Institute, Oregon Health and Science University, Portland, OR, USA.
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10
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Carlsen ED, Aggarwal N, Bailey NG. Molecular methods for measurable residual disease in acute myeloid leukemia: where are we and where are we going? J Hematop 2021. [DOI: 10.1007/s12308-020-00440-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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11
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Clonal hematopoiesis and measurable residual disease assessment in acute myeloid leukemia. Blood 2020; 135:1729-1738. [PMID: 32232484 DOI: 10.1182/blood.2019004770] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 02/27/2020] [Indexed: 12/13/2022] Open
Abstract
Current objectives regarding treatment of acute myeloid leukemia (AML) include achieving complete remission (CR) by clinicopathological criteria followed by interrogation for the presence of minimal/measurable residual disease (MRD) by molecular genetic and/or flow cytometric techniques. Although advances in molecular genetic technologies have enabled highly sensitive detection of AML-associated mutations and translocations, determination of MRD is complicated by the fact that many treated patients have persistent clonal hematopoiesis (CH) that may not reflect residual AML. CH detected in AML patients in CR includes true residual or early recurrent AML, myelodysplastic syndrome or CH that is ancestral to the AML, and independent or newly emerging clones of uncertain leukemogenic potential. Although the presence of AML-related mutations has been shown to be a harbinger of relapse in multiple studies, the significance of other types of CH is less well understood. In patients who undergo allogeneic hematopoietic cell transplantation (HCT), post-HCT clones can be donor-derived and in some cases engender a new myeloid neoplasm that is clonally unrelated to the recipient's original AML. In this article, we discuss the spectrum of CH that can be detected in treated AML patients, propose terminology to standardize nomenclature in this setting, and review clinical data and areas of uncertainty among the various types of posttreatment hematopoietic clones.
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12
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Leija-Salazar M, Pittman A, Mokretar K, Morris H, Schapira AH, Proukakis C. Investigation of Somatic Mutations in Human Brains Targeting Genes Associated With Parkinson's Disease. Front Neurol 2020; 11:570424. [PMID: 33193015 PMCID: PMC7642339 DOI: 10.3389/fneur.2020.570424] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 09/22/2020] [Indexed: 12/25/2022] Open
Abstract
Background: Somatic single nucleotide variant (SNV) mutations occur in neurons but their role in synucleinopathies is unknown. Aim: We aimed to identify disease-relevant low-level somatic SNVs in brains from sporadic patients with synucleinopathies and a monozygotic twin carrying LRRK2 G2019S, whose penetrance could be explained by somatic variation. Methods and Results: We included different brain regions from 26 Parkinson's disease (PD), one Incidental Lewy body, three multiple system atrophy cases, and 12 controls. The whole SNCA locus and exons of other genes associated with PD and neurodegeneration were deeply sequenced using molecular barcodes to improve accuracy. We selected 21 variants at 0.33–5% allele frequencies for validation using accurate methods for somatic variant detection. Conclusions: We could not detect disease-relevant somatic SNVs, however we cannot exclude their presence at earlier stages of degeneration. Our results support that coding somatic SNVs in neurodegeneration are rare, but other types of somatic variants may hold pathological consequences in synucleinopathies.
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Affiliation(s)
- Melissa Leija-Salazar
- Department of Clinical and Movement Neurosciences, University College London Queen Square Institute of Neurology, London, United Kingdom
| | - Alan Pittman
- Genetics Research Centre, Molecular and Clinical Sciences, St George's University of London, London, United Kingdom
| | - Katya Mokretar
- Department of Clinical and Movement Neurosciences, University College London Queen Square Institute of Neurology, London, United Kingdom
| | - Huw Morris
- Department of Clinical and Movement Neurosciences, University College London Queen Square Institute of Neurology, London, United Kingdom
| | - Anthony H Schapira
- Department of Clinical and Movement Neurosciences, University College London Queen Square Institute of Neurology, London, United Kingdom
| | - Christos Proukakis
- Department of Clinical and Movement Neurosciences, University College London Queen Square Institute of Neurology, London, United Kingdom
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13
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Evolving insights on histone methylome regulation in human acute myeloid leukemia pathogenesis and targeted therapy. Exp Hematol 2020; 92:19-31. [PMID: 32950598 DOI: 10.1016/j.exphem.2020.09.189] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/09/2020] [Accepted: 09/14/2020] [Indexed: 12/25/2022]
Abstract
Acute myeloid leukemia (AML) is an aggressive, disseminated hematological malignancy associated with clonal selection of aberrant self-renewing hematopoietic stem cells and progenitors and poorly differentiated myeloid blasts. The most prevalent form of leukemia in adults, AML is predominantly an age-related disorder and accounts for more than 10,000 deaths per year in the United States alone. In comparison to solid tumors, AML has an overall low mutational burden, albeit more than 70% of AML patients harbor somatic mutations in genes encoding epigenetic modifiers and chromatin regulators. In the past decade, discoveries highlighting the role of DNA and histone modifications in determining cellular plasticity and lineage commitment have attested to the importance of epigenetic contributions to tumor cell de-differentiation and heterogeneity, tumor initiation, maintenance, and relapse. Orchestration in histone methylation levels regulates pluripotency and multicellular development. The increasing number of reversible methylation regulators being identified, including histone methylation writer, reader, and eraser enzymes, and their implications in AML pathogenesis have widened the scope of epigenetic reprogramming, with multiple drugs currently in various stages of preclinical and clinical trials. AML methylome also determines response to conventional chemotherapy, as well as AML cell interaction within a tumor-immune microenvironment ecosystem. Here we summarize the latest developments focusing on molecular derangements in histone methyltransferases (HMTs) and histone demethylases (HDMs) in AML pathogenesis. AML-associated HMTs and HDMs, through intricate crosstalk mechanisms, maintain an altered histone methylation code conducive to disease progression. We further discuss their importance in governing response to therapy, which can be used as a biomarker for treatment efficacy. Finally we deliberate on the therapeutic potential of targeting aberrant histone methylome in AML, examine available small molecule inhibitors in combination with immunomodulating therapeutic approaches and caveats, and discuss how future studies can enable posited epigenome-based targeted therapy to become a mainstay for AML treatment.
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14
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Lyu XD, Guo Z, Li YW, Hu JY, Fan RH, Song YP. [Application and clinical study of clonal heterogeneity analysis in acute myeloid leukemia]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2020; 41:483-489. [PMID: 32654462 PMCID: PMC7378279 DOI: 10.3760/cma.j.issn.0253-2727.2020.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
目的 探讨急性髓系白血病(AML)的克隆异质性特征及其临床价值。 方法 采用高通量测序技术靶向检测2016年1月至2019年6月河南省肿瘤医院收治的465例AML患者的68种相关基因,将检出的基因突变位点根据变异等位基因频率(VAF)及同期流式细胞学结果进行克隆异质性分析,并分析其与预后的关系。 结果 338例(81.4%)初诊患者检出基因突变,其中携带DNMT3A、NRAS和RUNX1突变患者出现2个及以上克隆比例显著增加(DNMT3A:χ2=15.231, P<0.001;NRAS:χ2=19.866, P<0.001;RUNX1:χ2=23.647, P<0.001)。不同年龄组间克隆数差异有统计学意义(χ2=17.505, P=0.022),其中>60岁患者携带2个和≥3个克隆的比例增加。初诊患者与复发或继发AML患者间克隆分布差异具有统计学意义(χ2=11.302, P=0.010),且患者多克隆的比例随预后危险度增加而逐渐增加(χ2=17.505, P=0.022)。而主克隆分析中,RUNX1突变标志的主克隆比例较高(χ2=4.527, P=0.033)。克隆异质性与疗效相关分析显示,携带3个及以上克隆患者的总生存(OS)期和无进展生存(PFS)期均远低于其他患者(OS:χ2=13.533,P=0.004;PFS:χ2=9.817,P=0.020),而在中危组患者中,克隆数目多的患者其PFS期显著缩短(χ2=10.883,P=0.012)。Cox回归多因素分析显示,携带3个及以上克隆为影响预后的独立危险因素,其OS期和PFS期显著短于无克隆患者(OS:HR=3.296,95%CI 1.568~6.932,P=0.002;PFS:HR=3.241,95%CI 1.411~7.440,P=0.006)。 结论 克隆异质性可反映肿瘤的生物学特性,提示其耐药性、难治性及侵袭性,可进一步用来评估疗效和AML中危组患者的预后。
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Affiliation(s)
- X D Lyu
- Central Lab, the Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou 450008, China
| | - Z Guo
- Central Lab, the Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou 450008, China
| | - Y W Li
- Central Lab, the Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou 450008, China
| | - J Y Hu
- Central Lab, the Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou 450008, China
| | - R H Fan
- Central Lab, the Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou 450008, China
| | - Y P Song
- Department of Hematology, the Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou 450008, China
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15
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Detection and management of acute myeloid leukemia measurable residual disease: is it standard of care? Curr Opin Hematol 2020; 27:81-87. [PMID: 31895104 DOI: 10.1097/moh.0000000000000566] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
PURPOSE OF REVIEW In the present manuscript, we will review the current approaches to investigate measurable residual disease (MRD) and its clinical applications in AML management. RECENT FINDINGS Over the last decades, several methods have been developed to trace MRD, with flow cytometry and polymerase chain reaction (PCR) being the most reliable. However, new technologies, such as digital PCR and Next-Generation Sequencing are emerging as particularly useful in AML. The 2017 European LeukemiaNet (ELN) recommendations have incorporated MRD assessment to define the response criteria to therapy, and more recently, the ELN MRD Working Party has published guidelines for the use of MRD in clinical practice. SUMMARY Morphologic complete remission (mCR) after induction therapy, has been consistently shown not only to have a critical prognostic role but also to fail in predicting relapse on an individual basis. Major attempts to improve our prediction capability have been made by measuring the residual levels of leukemic cells that persist in the bone marrow after chemotherapy. This number of cells, also called MRD, harbors in the bone marrow below the threshold of morphology and is responsible for leukemia recurrence. Therefore, the detection of MRD promises to help predict the risk of relapse, allowing a more proper patients' risk-stratification and the use of risk-tailored therapeutic strategy.
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16
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Flach J, Shumilov E, Wiedemann G, Porret N, Shakhanova I, Bürki S, Legros M, Joncourt R, Pabst T, Bacher U. Clinical potential of introducing next-generation sequencing in patients at relapse of acute myeloid leukemia. Hematol Oncol 2020; 38:425-431. [PMID: 32306411 DOI: 10.1002/hon.2739] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/02/2020] [Accepted: 04/14/2020] [Indexed: 12/19/2022]
Abstract
Relapse of acute myeloid leukemia (AML) remains a major determinant of outcome. A number of molecularly directed treatment options have recently emerged making comprehensive diagnostics an important pillar of clinical decision making at relapse. Acknowledging the high degree of individual genetic variability at AML relapse, next-generation sequencing (NGS) has opened the opportunity for assessing the unique clonal hierarchy of individual AML patients. Knowledge on the genetic makeup of AML is reflected in patient customized treatment strategies thereby providing improved outcomes. For example, the emergence of druggable mutations at relapse enable the use of novel targeted therapies, including FLT3 inhibitors or the recently approved IDH1/2 inhibitors ivosidenib and enasidenib, respectively. Consequently, some patients may undergo novel bridging approaches for reinduction before allogeneic stem cell transplantation, or the identification of an adverse prognostic marker may initiate early donor search. In this review, we summarize the current knowledge of NGS in identifying clonal stability, clonal evolution, and clonal devolution in the context of AML relapse. In light of recent improvements in AML treatment options, NGS-based molecular diagnostics emerges as the basis for molecularly directed treatment decisions in patients at relapse.
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Affiliation(s)
- Johanna Flach
- Department of Hematology and Oncology, Medical Faculty Mannheim of the Heidelberg University, Mannheim, Germany
| | - Evgenii Shumilov
- Department of Hematology and Medical Oncology, University Medicine Göttingen (UMG), Göttingen, Germany
| | - Gertrud Wiedemann
- University Department of Hematology and Central Hematology Laboratory, Inselspital, Bern University Hospital, Bern, Switzerland.,Center of Laboratory Medicine (ZLM)/University Institute of Clinical Chemistry, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Naomi Porret
- University Department of Hematology and Central Hematology Laboratory, Inselspital, Bern University Hospital, Bern, Switzerland.,Center of Laboratory Medicine (ZLM)/University Institute of Clinical Chemistry, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Inna Shakhanova
- Department of Nephrology and Rheumatology, University Medicine Göttingen (UMG), Göttingen, Germany
| | - Susanne Bürki
- Department of Medical Oncology, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Myriam Legros
- Center of Laboratory Medicine (ZLM)/University Institute of Clinical Chemistry, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Raphael Joncourt
- University Department of Hematology and Central Hematology Laboratory, Inselspital, Bern University Hospital, Bern, Switzerland.,Center of Laboratory Medicine (ZLM)/University Institute of Clinical Chemistry, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Thomas Pabst
- Department of Medical Oncology, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Ulrike Bacher
- University Department of Hematology and Central Hematology Laboratory, Inselspital, Bern University Hospital, Bern, Switzerland.,Center of Laboratory Medicine (ZLM)/University Institute of Clinical Chemistry, Inselspital, Bern University Hospital, Bern, Switzerland
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17
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Vosberg S, Greif PA. Clonal evolution of acute myeloid leukemia from diagnosis to relapse. Genes Chromosomes Cancer 2019; 58:839-849. [PMID: 31478278 PMCID: PMC6852285 DOI: 10.1002/gcc.22806] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 08/19/2019] [Accepted: 08/21/2019] [Indexed: 12/13/2022] Open
Abstract
Based on the individual genetic profile, acute myeloid leukemia (AML) patients are classified into clinically meaningful molecular subtypes. However, the mutational profile within these groups is highly heterogeneous and multiple AML subclones may exist in a single patient in parallel. Distinct alterations of single cells may be key factors in providing the fitness to survive in this highly competitive environment. Although the majority of AML patients initially respond to induction chemotherapy and achieve a complete remission, most patients will eventually relapse. These points toward an evolutionary process transforming treatment-sensitive cells into treatment-resistant cells. As described by Charles Darwin, evolution by natural selection is the selection of individuals that are optimally adapted to their environment, based on the random acquisition of heritable changes. By changing their mutational profile, AML cell populations are able to adapt to the new environment defined by chemotherapy treatment, ultimately leading to cell survival and regrowth. In this review, we will summarize the current knowledge about clonal evolution in AML, describe different models of clonal evolution, and provide the methodological background that allows the detection of clonal evolution in individual AML patients. During the last years, numerous studies have focused on delineating the molecular patterns that are associated with AML relapse, each focusing on a particular genetic subgroup of AML. Finally, we will review the results of these studies in the light of Darwinian evolution and discuss open questions regarding the molecular background of relapse development.
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Affiliation(s)
- Sebastian Vosberg
- Department of Medicine IIIUniversity Hospital, LMU MunichMunichGermany
- Experimental Leukemia and Lymphoma Research (ELLF)University Hospital, LMU MunichMunichGermany
- German Cancer Consortium (DKTK)HeidelbergGermany
- German Cancer Research Center (DKFZ)HeidelbergGermany
| | - Philipp A. Greif
- Department of Medicine IIIUniversity Hospital, LMU MunichMunichGermany
- Experimental Leukemia and Lymphoma Research (ELLF)University Hospital, LMU MunichMunichGermany
- German Cancer Consortium (DKTK)HeidelbergGermany
- German Cancer Research Center (DKFZ)HeidelbergGermany
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18
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Molica M, Breccia M, Foa R, Jabbour E, Kadia TM. Maintenance therapy in AML: The past, the present and the future. Am J Hematol 2019; 94:1254-1265. [PMID: 31429099 DOI: 10.1002/ajh.25620] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 08/13/2019] [Accepted: 08/15/2019] [Indexed: 12/29/2022]
Abstract
Curative treatment in acute myeloid leukemia (AML) depends on successful induction therapy to achieve a complete remission (CR), and subsequent post-remission therapy to prevent relapse. High relapse rates after consolidation therapy and after allogeneic stem cell transplant contribute to suboptimal outcomes in AML patients, and continue to represent a difficult challenge. Effective maintenance therapy could play an important role in prolonging the remission interval in the post-consolidation setting, especially in high risk AML patients. Maintenance treatment approaches based on conventional chemotherapy, immunotherapy, hypomethylating agents, and targeted small molecules have been explored in this setting, but no data so far have been convincing enough to establish this approach as the standard of care. However, ongoing and future studies including novel targeted therapies may demonstrate promising efficacy that could facilitate incorporation of maintenance therapy into clinical practice. In this review we summarize previous and ongoing approaches of maintenance therapy in AML and discuss the most promising strategies.
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Affiliation(s)
- Matteo Molica
- Hematology, Department of Translational and Precision MedicineUniversity Sapienza Rome Roma Italy
| | - Massimo Breccia
- Hematology, Department of Translational and Precision MedicineUniversity Sapienza Rome Roma Italy
| | - Roberto Foa
- Hematology, Department of Translational and Precision MedicineUniversity Sapienza Rome Roma Italy
| | - Elias Jabbour
- Department of LeukemiaThe University of Texas MD Anderson Cancer Center Houston Texas
| | - Tapan M. Kadia
- Department of LeukemiaThe University of Texas MD Anderson Cancer Center Houston Texas
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19
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Next-generation sequencing-based minimal residual disease monitoring in patients receiving allogeneic hematopoietic stem cell transplantation for acute myeloid leukemia or myelodysplastic syndrome. Curr Opin Hematol 2019; 25:425-432. [PMID: 30281033 DOI: 10.1097/moh.0000000000000464] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
PURPOSE OF REVIEW The monitoring of minimal residual disease (MRD) has important clinical implications in both the pre and postallogeneic stem cell transplant (SCT) setting in acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS). Next-generation sequencing (NGS) is a rapidly improving technology whose application to the monitoring of MRD is an active area of research. We aim to describe existing methods of MRD in AML and MDS, with a focus on the utility of NGS in patients undergoing SCT. RECENT FINDINGS Flow cytometry and quantitative PCR have been recommended by the European Leukemia Net as the preferred methods of MRD in AML and MDS, but these methods have limitations in cases without a disease-defining phenotype and genotype. Clinical trials are currently ongoing to assess the use of NGS in the setting of SCT for MDS and AML. Few studies have so far assessed the optimal method of MRD monitoring in the posttransplant setting. SUMMARY The optimal method for the monitoring of MRD in AML and MDS both pre and post transplant may require more than one technology. NGS holds great promise for the monitoring of MRD, with prospective trials currently ongoing to evaluate its efficacy in this regard.
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20
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Press RD, Eickelberg G, Froman A, Yang F, Stentz A, Flatley EM, Fan G, Lim JY, Meyers G, Maziarz RT, Cook RJ. Next-generation sequencing-defined minimal residual disease before stem cell transplantation predicts acute myeloid leukemia relapse. Am J Hematol 2019; 94:902-912. [PMID: 31124175 DOI: 10.1002/ajh.25514] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 05/16/2019] [Accepted: 05/21/2019] [Indexed: 12/19/2022]
Abstract
In acute myeloid leukemia (AML), the assessment of post-treatment minimal residual disease (MRD) may inform a more effective management approach. We investigated the prognostic utility of next-generation sequencing (NGS)-based MRD detection undertaken before hematopoietic stem cell transplantation (HSCT). Forty-two AML subjects underwent serial disease monitoring both by standard methods, and a targeted 42-gene NGS assay, able to detect leukemia-specific mutant alleles (with >0.5% VAF) (mean 5.1 samples per subject). The prognostic relevance of any persisting diagnostic mutation before transplant (≤27 days) was assessed during 22.1 months (median) of post-transplant follow-up. The sensitivity of the NGS assay (27 MRD-positive subjects) exceeded that of the non-molecular methods (morphology, FISH, and flow cytometry) (11 positive subjects). Only one of the 13 subjects who relapsed after HSCT was NGS MRD-negative (92% assay sensitivity). The cumulative incidence of post-transplant leukemic relapse was significantly higher in the pre-transplant NGS MRD-positive (vs MRD-negative) subjects (P = .014). After adjusting for TP53 mutation and transplant conditioning regimen, NGS MRD-positivity retained independent prognostic significance for leukemic relapse (subdistribution hazard ratio = 7.3; P = .05). The pre-transplant NGS MRD-positive subjects also had significantly shortened progression-free survival (P = .038), and marginally shortened overall survival (P = .068). In patients with AML undergoing HSCT, the pre-transplant persistence of NGS-defined MRD imparts a significant, sensitive, strong, and independent increased risk for subsequent leukemic relapse and death. Given that NGS can simultaneously detect multiple leukemia-associated mutations, it can be used in the majority of AML patients to monitor disease burdens and inform treatment decisions.
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Affiliation(s)
- Richard D. Press
- Department of PathologyOregon Health & Science University Portand Oregon
- Knight Cancer InstituteOregon Health & Science University Portand Oregon
| | - Garrett Eickelberg
- Knight Cancer InstituteOregon Health & Science University Portand Oregon
| | - Allison Froman
- Knight Cancer InstituteOregon Health & Science University Portand Oregon
| | - Fei Yang
- Department of PathologyOregon Health & Science University Portand Oregon
- Knight Cancer InstituteOregon Health & Science University Portand Oregon
| | - Alex Stentz
- Knight Cancer InstituteOregon Health & Science University Portand Oregon
- Division of Hematology‐OncologyOregon Health & Science University Portand Oregon
| | - Ellen M. Flatley
- Department of PathologyOregon Health & Science University Portand Oregon
| | - Guang Fan
- Department of PathologyOregon Health & Science University Portand Oregon
| | - Jeong Y. Lim
- Knight Cancer InstituteOregon Health & Science University Portand Oregon
| | - Gabrielle Meyers
- Knight Cancer InstituteOregon Health & Science University Portand Oregon
- Division of Hematology‐OncologyOregon Health & Science University Portand Oregon
| | - Richard T. Maziarz
- Knight Cancer InstituteOregon Health & Science University Portand Oregon
- Division of Hematology‐OncologyOregon Health & Science University Portand Oregon
| | - Rachel J. Cook
- Knight Cancer InstituteOregon Health & Science University Portand Oregon
- Division of Hematology‐OncologyOregon Health & Science University Portand Oregon
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21
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Hu Y, Chen A, Zheng X, Lu J, He H, Yang J, Zhang Y, Sui P, Yang J, He F, Wang Y, Xiao P, Liu X, Zhou Y, Pei D, Cheng C, Ribeiro RC, Hu S, Wang QF. Ecological principle meets cancer treatment: treating children with acute myeloid leukemia with low-dose chemotherapy. Natl Sci Rev 2019; 6:469-479. [PMID: 34691895 PMCID: PMC8291445 DOI: 10.1093/nsr/nwz006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 12/08/2018] [Accepted: 01/21/2019] [Indexed: 12/26/2022] Open
Abstract
Standard chemotherapy regimens for remission induction of pediatric acute myeloid leukemia (AML) are associated with significant morbidity and mortality. We performed a cohort study to determine the impact of reducing the intensity of remission induction chemotherapy on the outcomes of selected children with AML treated with a low-dose induction regimen plus granulocyte colony stimulating factor (G-CSF) (low-dose chemotherapy (LDC)/G-CSF). Complete response (CR) after two induction courses was attained in 87.0% (40/46) of patients receiving LDC/G-CSF. Post-remission therapy was offered to all patients, and included standard consolidation and/or stem cell transplantation. During the study period, an additional 94 consecutive children with AML treated with standard chemotherapy (SDC) for induction (80/94 (85.1%) of the patients attained CR after induction II, P = 0.953) and post-remission. In this non-randomized study, there were no significant differences in 4-year event-free (67.4 vs. 70.7%; P = 0.99) and overall (70.3 vs. 74.6%, P = 0.69) survival in the LDC/G-CSF and SDC cohorts, respectively. After the first course of induction, recovery of white blood cell (WBC) and platelet counts were significantly faster in patients receiving LDC/G-CSF than in those receiving SDC (11.5 vs. 18.5 d for WBCs (P < 0.001); 15.5 vs. 22.0 d for platelets (P < 0.001)). To examine the quality of molecular response, targeted deep sequencing was performed. Of 137 mutations detected at diagnosis in 20 children who attained hematological CR after two courses of LDC/G-CSF (n = 9) or SDC (n = 11), all of the mutations were below the reference value (variant allelic frequency <2.5%) after two courses, irrespective of the treatment group. In conclusion, children with AML receiving LDC/G-CSF appear to have similar outcomes and mutation clearance levels, but significantly lower toxicity than those receiving SDC. Thus, LDC/G-CSF should be further evaluated as an effective alternative to remission induction in pediatric AML.
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Affiliation(s)
- Yixin Hu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215025, China
| | - Aili Chen
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China
| | - Xinchang Zheng
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jun Lu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215025, China
| | - Hailong He
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215025, China
| | - Jin Yang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215025, China.,Department of Pediatrics, Nothern Jiangsu People's Hospital, Yangzhou 225001, China
| | - Ya Zhang
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Pinpin Sui
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jingyi Yang
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fuhong He
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China
| | - Yi Wang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215025, China
| | - Peifang Xiao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215025, China
| | - Xin Liu
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yinmei Zhou
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis TN 38105, USA
| | - Deqing Pei
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis TN 38105, USA
| | - Cheng Cheng
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis TN 38105, USA
| | - Raul C Ribeiro
- Department of Oncology and Global Medicine, International Outreach Program, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Shaoyan Hu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215025, China
| | - Qian-Fei Wang
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
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22
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Hartmann L, Metzeler KH. Clonal hematopoiesis and preleukemia-Genetics, biology, and clinical implications. Genes Chromosomes Cancer 2019; 58:828-838. [PMID: 30939217 DOI: 10.1002/gcc.22756] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 03/21/2019] [Accepted: 03/26/2019] [Indexed: 12/17/2022] Open
Abstract
Myeloid neoplasms including myelodysplastic syndromes and acute myeloid leukemia (AML) originate from hematopoietic stem cells through sequential acquisition of genetic and epigenetic alterations that ultimately cause the disease-specific phenotype of impaired differentiation and increased proliferation. It has become clear that preleukemic clonal hematopoiesis (CH), characterized by an expansion of stem and progenitor cells that carry somatic mutations but are still capable of normal differentiation, can precede the development of clinically overt myeloid neoplasia by many years. CH commonly develops in the aging hematopoietic system, yet progression to myelodysplasia or AML is rare. The discovery that myeloid neoplasms frequently develop from premalignant precursor conditions that are detectable in many healthy individuals has important consequences for the diagnosis, and potentially for the treatment of these disorders. In this review, we summarize the current knowledge on CH as a precursor of myeloid cancers and the implications of CH-related gene mutations in the diagnostic workup of patients with suspected myelodysplastic syndrome. We will discuss the risk of progression associated with CH in healthy persons and in patients undergoing chemotherapy for a non-hematologic cancer, and the significance of CH in autologous and allogeneic stem cell transplantation. Finally, we will review the significance of preleukemic clones in AML and their persistence in patients who achieve a remission after chemotherapeutic treatment.
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Affiliation(s)
| | - Klaus H Metzeler
- Laboratory for Leukemia Diagnostics, Department of Internal Medicine III, LMU Munich, Munich, Germany
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23
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Rautenberg C, Germing U, Haas R, Kobbe G, Schroeder T. Relapse of Acute Myeloid Leukemia after Allogeneic Stem Cell Transplantation: Prevention, Detection, and Treatment. Int J Mol Sci 2019; 20:ijms20010228. [PMID: 30626126 PMCID: PMC6337734 DOI: 10.3390/ijms20010228] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 01/02/2019] [Accepted: 01/03/2019] [Indexed: 12/12/2022] Open
Abstract
Acute myeloid leukemia (AML) is a phenotypically and prognostically heterogeneous hematopoietic stem cell disease that may be cured in eligible patients with intensive chemotherapy and/or allogeneic stem cell transplantation (allo-SCT). Tremendous advances in sequencing technologies have revealed a large amount of molecular information which has markedly improved our understanding of the underlying pathophysiology and enables a better classification and risk estimation. Furthermore, with the approval of the FMS-like tyrosine kinase 3 (FLT3) inhibitor Midostaurin a first targeted therapy has been introduced into the first-line therapy of younger patients with FLT3-mutated AML and several other small molecules targeting molecular alterations such as isocitrate dehydrogenase (IDH) mutations or the anti-apoptotic b-cell lymphoma 2 (BCL-2) protein are currently under investigation. Despite these advances, many patients will have to undergo allo-SCT during the course of disease and depending on disease and risk status up to half of them will finally relapse after transplant. Here we review the current knowledge about the molecular landscape of AML and how this can be employed to prevent, detect and treat relapse of AML after allo-SCT.
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MESH Headings
- Antineoplastic Agents/therapeutic use
- Hematopoietic Stem Cell Transplantation
- Humans
- Leukemia, Myeloid, Acute/diagnosis
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/prevention & control
- Leukemia, Myeloid, Acute/therapy
- Mutation/genetics
- Neoplasm, Residual/diagnosis
- Neoplasm, Residual/drug therapy
- Recurrence
- Transplantation, Homologous
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Affiliation(s)
- Christina Rautenberg
- Department of Hematology, Oncology and Clinical Immunology, University of Duesseldorf, Medical Faculty, 40225 Duesseldorf, Germany.
| | - Ulrich Germing
- Department of Hematology, Oncology and Clinical Immunology, University of Duesseldorf, Medical Faculty, 40225 Duesseldorf, Germany.
| | - Rainer Haas
- Department of Hematology, Oncology and Clinical Immunology, University of Duesseldorf, Medical Faculty, 40225 Duesseldorf, Germany.
| | - Guido Kobbe
- Department of Hematology, Oncology and Clinical Immunology, University of Duesseldorf, Medical Faculty, 40225 Duesseldorf, Germany.
| | - Thomas Schroeder
- Department of Hematology, Oncology and Clinical Immunology, University of Duesseldorf, Medical Faculty, 40225 Duesseldorf, Germany.
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24
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Moors I, Vandepoele K, Philippé J, Deeren D, Selleslag D, Breems D, Straetmans N, Kerre T, Denys B. Clinical implications of measurable residual disease in AML: Review of current evidence. Crit Rev Oncol Hematol 2019; 133:142-148. [DOI: 10.1016/j.critrevonc.2018.11.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 08/30/2018] [Accepted: 11/23/2018] [Indexed: 02/08/2023] Open
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25
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Delsing Malmberg E, Rehammar A, Pereira MB, Abrahamsson J, Samuelsson T, Ståhlman S, Asp J, Tierens A, Palmqvist L, Kristiansson E, Fogelstrand L. Accurate and Sensitive Analysis of Minimal Residual Disease in Acute Myeloid Leukemia Using Deep Sequencing of Single Nucleotide Variations. J Mol Diagn 2019; 21:149-162. [DOI: 10.1016/j.jmoldx.2018.08.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 07/18/2018] [Accepted: 08/30/2018] [Indexed: 12/26/2022] Open
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26
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Martignoles JA, Delhommeau F, Hirsch P. Genetic Hierarchy of Acute Myeloid Leukemia: From Clonal Hematopoiesis to Molecular Residual Disease. Int J Mol Sci 2018; 19:E3850. [PMID: 30513905 PMCID: PMC6321602 DOI: 10.3390/ijms19123850] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 11/25/2018] [Accepted: 11/26/2018] [Indexed: 02/06/2023] Open
Abstract
Recent advances in the field of cancer genome analysis revolutionized the picture we have of acute myeloid leukemia (AML). Pan-genomic studies, using either single nucleotide polymorphism arrays or whole genome/exome next generation sequencing, uncovered alterations in dozens of new genes or pathways, intimately connected with the development of leukemia. From a simple two-hit model in the late nineties, we are now building clonal stories that involve multiple unexpected cellular functions, leading to full-blown AML. In this review, we will address several seminal concepts that result from these new findings. We will describe the genetic landscape of AML, the association and order of events that define multiple sub-entities, both in terms of pathogenesis and in terms of clinical practice. Finally, we will discuss the use of this knowledge in the settings of new strategies for the evaluation of measurable residual diseases (MRD), using clone-specific multiple molecular targets.
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Affiliation(s)
- Jean-Alain Martignoles
- Sorbonne Université, Inserm, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint-Antoine, Hématologie Biologique, F-75012 Paris, France.
| | - François Delhommeau
- Sorbonne Université, Inserm, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint-Antoine, Hématologie Biologique, F-75012 Paris, France.
| | - Pierre Hirsch
- Sorbonne Université, Inserm, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint-Antoine, Hématologie Biologique, F-75012 Paris, France.
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27
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Grimm J, Bill M, Jentzsch M, Beinicke S, Häntschel J, Goldmann K, Schulz J, Cross M, Franke G, Behre G, Vucinic V, Pönisch W, Lange T, Niederwieser D, Schwind S. Clinical impact of clonal hematopoiesis in acute myeloid leukemia patients receiving allogeneic transplantation. Bone Marrow Transplant 2018; 54:1189-1197. [DOI: 10.1038/s41409-018-0413-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 11/13/2018] [Accepted: 11/19/2018] [Indexed: 12/21/2022]
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28
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Minimal/Measurable Residual Disease Monitoring in NPM1-Mutated Acute Myeloid Leukemia: A Clinical Viewpoint and Perspectives. Int J Mol Sci 2018; 19:ijms19113492. [PMID: 30404199 PMCID: PMC6274702 DOI: 10.3390/ijms19113492] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/02/2018] [Accepted: 11/03/2018] [Indexed: 02/06/2023] Open
Abstract
Acute myeloid leukemia (AML) with NPM1 gene mutations is currently recognized as a distinct entity, due to its unique biological and clinical features. We summarize here the results of published studies investigating the clinical application of minimal/measurable residual disease (MRD) in patients with NPM1-mutated AML, receiving either intensive chemotherapy or hematopoietic stem cell transplantation. Several clinical trials have so far demonstrated a significant independent prognostic impact of molecular MRD monitoring in NPM1-mutated AML and, accordingly, the Consensus Document from the European Leukemia Net MRD Working Party has recently recommended that NPM1-mutated AML patients have MRD assessment at informative clinical timepoints during treatment and follow-up. However, several controversies remain, mainly with regard to the most clinically significant timepoints and the MRD thresholds to be considered, but also with respect to the optimal source to be analyzed, namely bone marrow or peripheral blood samples, and the correlation of MRD with other known prognostic indicators. Moreover, we discuss potential advantages, as well as drawbacks, of newer molecular technologies such as digital droplet PCR and next-generation sequencing in comparison to conventional RQ-PCR to quantify NPM1-mutated MRD. In conclusion, further prospective clinical trials are warranted to standardize MRD monitoring strategies and to optimize MRD-guided therapeutic interventions in NPM1-mutated AML patients.
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29
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Abstract
The presence of measurable ("minimal") residual disease (MRD) after induction and/or consolidation chemotherapy is a significant risk factor for relapse in patients with acute myeloid leukemia (AML). In recognition of the clinical significance of AML MRD, the European LeukemiaNet (ELN) recently recommended the establishment of CR-MRDNegative as a separate category of treatment response. This recommendation represents a major milestone in the integration of AML MRD testing in standard clinical practice. This review article summarizes the methodologies employed in AML MRD detection and their application in clinical studies that provide evidence supporting the clinical utility of AML MRD testing. Future MRD evaluations in AML likely will require an integrated approach combining multi-parameter flow cytometry and high-sensitivity molecular techniques applied to time points during and after completion of therapy in order to provide the most accurate and comprehensive assessment of treatment response.
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30
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Buccisano F, Hourigan CS, Walter RB. The Prognostic Significance of Measurable ("Minimal") Residual Disease in Acute Myeloid Leukemia. Curr Hematol Malig Rep 2018; 12:547-556. [PMID: 29027628 DOI: 10.1007/s11899-017-0420-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
PURPOSE OF REVIEW The purpose of this review was to evaluate recent literature on detection methodologies for, and prognostic significance of, measurable ("minimal") residual disease (MRD) in acute myeloid leukemia (AML). RECENT FINDINGS There is no "one-fits-all" approach to MRD testing in AML. Most exploited to date are methods relying on immunophenotypic aberrancies (identified via multiparameter flow cytometry) or genetic abnormalities (identified via PCR-based assays). Current methods have important shortcomings, including the lack of assay platform standardization/harmonization across laboratories. In parallel to refinements of existing technologies and data analysis/interpretation, new methodologies (e.g., next-generation sequencing-based assays) are emerging that eventually may complement or replace existing ones. This dynamic evolution of MRD testing has complicated comparisons between individual studies. Nonetheless, an ever-growing body of data demonstrates that a positive MRD test at various time points throughout chemotherapy and hematopoietic cell transplantation identifies patients at particularly high risks of disease recurrence and short survival even after adjustment for other risk factors.
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Affiliation(s)
- Francesco Buccisano
- Department of Biomedicine and Prevention, Hematology, University Tor Vergata, Via Montpellier 1, 00133, Rome, Italy.
| | - Christopher S Hourigan
- Myeloid Malignancies Section, Hematology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Roland B Walter
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Department of Medicine, Division of Hematology, University of Washington, Seattle, WA, USA.,Department of Epidemiology, University of Washington, Seattle, WA, USA
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31
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Rothenberg-Thurley M, Amler S, Goerlich D, Köhnke T, Konstandin NP, Schneider S, Sauerland MC, Herold T, Hubmann M, Ksienzyk B, Zellmeier E, Bohlander SK, Subklewe M, Faldum A, Hiddemann W, Braess J, Spiekermann K, Metzeler KH. Persistence of pre-leukemic clones during first remission and risk of relapse in acute myeloid leukemia. Leukemia 2018; 32:1598-1608. [PMID: 29472724 PMCID: PMC6035153 DOI: 10.1038/s41375-018-0034-z] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 11/18/2017] [Accepted: 11/23/2017] [Indexed: 01/11/2023]
Abstract
Some patients with acute myeloid leukemia (AML) who are in complete remission after induction chemotherapy harbor persisting pre-leukemic clones, carrying a subset of leukemia-associated somatic mutations. There is conflicting evidence on the prognostic relevance of these clones for AML relapse. Here, we characterized paired pre-treatment and remission samples from 126 AML patients for mutations in 68 leukemia-associated genes. Fifty patients (40%) retained ≥1 mutation during remission at a VAF of ≥2%. Mutation persistence was most frequent in DNMT3A (65% of patients with mutations at diagnosis), SRSF2 (64%), TET2 (55%), and ASXL1 (46%), and significantly associated with older age (p < 0.0001) and, in multivariate analyses adjusting for age, genetic risk, and allogeneic transplantation, with inferior relapse-free survival (hazard ratio (HR), 2.34; p = 0.0039) and overall survival (HR, 2.14; p = 0.036). Patients with persisting mutations had a higher cumulative incidence of relapse before, but not after allogeneic stem cell transplantation. Our work underlines the relevance of mutation persistence during first remission as a novel risk factor in AML. Persistence of pre-leukemic clones may contribute to the inferior outcome of elderly AML patients. Allogeneic transplantation abrogated the increased relapse risk associated with persisting pre-leukemic clones, suggesting that mutation persistence may guide post-remission treatment.
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Affiliation(s)
- Maja Rothenberg-Thurley
- Laboratory for Leukemia Diagnostics, Department of Internal Medicine III, LMU Munich, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Susanne Amler
- Institute of Biostatistics and Clinical Research, WWU Münster, Münster, Germany
| | - Dennis Goerlich
- Institute of Biostatistics and Clinical Research, WWU Münster, Münster, Germany
| | - Thomas Köhnke
- Laboratory for Leukemia Diagnostics, Department of Internal Medicine III, LMU Munich, Munich, Germany
| | - Nikola P Konstandin
- Laboratory for Leukemia Diagnostics, Department of Internal Medicine III, LMU Munich, Munich, Germany
| | - Stephanie Schneider
- Laboratory for Leukemia Diagnostics, Department of Internal Medicine III, LMU Munich, Munich, Germany
| | - Maria C Sauerland
- Institute of Biostatistics and Clinical Research, WWU Münster, Münster, Germany
| | - Tobias Herold
- Laboratory for Leukemia Diagnostics, Department of Internal Medicine III, LMU Munich, Munich, Germany
| | - Max Hubmann
- Laboratory for Leukemia Diagnostics, Department of Internal Medicine III, LMU Munich, Munich, Germany
| | - Bianka Ksienzyk
- Laboratory for Leukemia Diagnostics, Department of Internal Medicine III, LMU Munich, Munich, Germany
| | - Evelyn Zellmeier
- Laboratory for Leukemia Diagnostics, Department of Internal Medicine III, LMU Munich, Munich, Germany
| | - Stefan K Bohlander
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand
| | - Marion Subklewe
- Laboratory for Leukemia Diagnostics, Department of Internal Medicine III, LMU Munich, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Andreas Faldum
- Institute of Biostatistics and Clinical Research, WWU Münster, Münster, Germany
| | - Wolfgang Hiddemann
- Laboratory for Leukemia Diagnostics, Department of Internal Medicine III, LMU Munich, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jan Braess
- Department of Oncology and Hematology, Hospital Barmherzige Brüder, Regensburg, Germany
| | - Karsten Spiekermann
- Laboratory for Leukemia Diagnostics, Department of Internal Medicine III, LMU Munich, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Klaus H Metzeler
- Laboratory for Leukemia Diagnostics, Department of Internal Medicine III, LMU Munich, Munich, Germany.
- German Cancer Consortium (DKTK), Partner Site Munich, and German Cancer Research Center (DKFZ), Heidelberg, Germany.
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32
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Buccisano F, Dillon R, Freeman SD, Venditti A. Role of Minimal (Measurable) Residual Disease Assessment in Older Patients with Acute Myeloid Leukemia. Cancers (Basel) 2018; 10:cancers10070215. [PMID: 29949858 PMCID: PMC6070940 DOI: 10.3390/cancers10070215] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/18/2018] [Accepted: 06/18/2018] [Indexed: 12/22/2022] Open
Abstract
Minimal (or measurable) residual (MRD) disease provides a biomarker of response quality for which there is robust validation in the context of modern intensive treatment for younger patients with Acute Myeloid Leukemia (AML). Nevertheless, it remains a relatively unexplored area in older patients with AML. The lack of progress in this field can be attributed to two main reasons. First, physicians have a general reluctance to submitting older adults to intensive chemotherapy due to their frailty and to the unfavourable biological disease profile predicting a poor outcome following conventional chemotherapy. Second, with the increasing use of low-intensity therapies (i.e., hypomethylating agents) differing from conventional drugs in mechanism of action and dynamics of response, there has been concomitant skepticism that these schedules can produce deep hematological responses. Furthermore, age dependent differences in disease biology also contribute to uncertainty on the prognostic/predictive impact in older adults of certain genetic abnormalities including those validated for MRD monitoring in younger patients. This review examines the evidence for the role of MRD as a prognosticator in older AML, together with the possible pitfalls of MRD evaluation in older age.
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Affiliation(s)
- Francesco Buccisano
- Hematology, Department of Biomedicine and Prevention, Tor Vergata University of Rome, 00133 Rome, Italy.
| | - Richard Dillon
- Department of Medical and Molecular Genetics, King's College, London SE1 9RT, UK.
| | - Sylvie D Freeman
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham B15 2TT, UK.
| | - Adriano Venditti
- Hematology, Department of Biomedicine and Prevention, Tor Vergata University of Rome, 00133 Rome, Italy.
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33
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Deep NPM1 Sequencing Following Allogeneic Hematopoietic Cell Transplantation Improves Risk Assessment in Adults with NPM1-Mutated AML. Biol Blood Marrow Transplant 2018; 24:1615-1620. [PMID: 29684564 DOI: 10.1016/j.bbmt.2018.04.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 04/12/2018] [Indexed: 12/12/2022]
Abstract
Relapse is the major cause of death in patients with acute myeloid leukemia (AML) after allogeneic hematopoietic cell transplantation (HCT). Measurable residual disease (MRD) detected by multiparameter flow cytometry (MFC) before and after HCT is a strong, independent risk factor for relapse. As next-generation sequencing (NGS) is increasingly applied in AML MRD detection, it remains to be determined if NGS can improve prediction of post-HCT relapse. Herein, we investigated pre-HCT MRD detected by MFC and NGS in 59 adult patients with NPM1-mutated AML in morphologic remission; 45 of the 59 had post-HCT MRD determined by MFC and NGS around day 28. Before HCT, MRD detected by MFC was the most significant risk factor for relapse (hazard ratio [HR], 4.63; P < .001), whereas MRD detected only by NGS was not. After HCT, MRD detected by either MFC or NGS was significant risk factor for relapse (HR, 4.96, P = .004 and HR, 4.36, P = .002, respectively). Combining pre- and post-HCT MRD provided the best prediction for relapse (HR, 5.25; P < .001), with a sensitivity at 83%. We conclude that NGS testing of mutated NPM1 post-HCT improves the risk assessment for relapse, whereas pre-HCT MFC testing identifies a subset of high-risk patients in whom additional therapy should be tested.
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34
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Van Acker HH, Anguille S, De Reu H, Berneman ZN, Smits EL, Van Tendeloo VF. Interleukin-15-Cultured Dendritic Cells Enhance Anti-Tumor Gamma Delta T Cell Functions through IL-15 Secretion. Front Immunol 2018; 9:658. [PMID: 29692776 PMCID: PMC5902500 DOI: 10.3389/fimmu.2018.00658] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 03/16/2018] [Indexed: 12/13/2022] Open
Abstract
Dendritic cell (DC) vaccination can be an effective post-remission therapy for acute myeloid leukemia (AML). Yet, current DC vaccines do not encompass the ideal stimulatory triggers for innate gamma delta (γδ) T cell anti-tumor activity. Promoting type 1 cytotoxic γδ T cells in patients with AML is, however, most interesting, considering these unconventional T cells are primed for rapid function and exert meaningful control over AML. In this work, we demonstrate that interleukin (IL)-15 DCs have the capacity to enhance the anti-tumoral functions of γδ T cells. IL-15 DCs of healthy donors and of AML patients in remission induce the upregulation of cytotoxicity-associated and co-stimulatory molecules on the γδ T cell surface, but not of co-inhibitory molecules, incite γδ T cell proliferation and stimulate their interferon-γ production in the presence of blood cancer cells and phosphoantigens. Moreover, the innate cytotoxic capacity of γδ T cells is significantly enhanced upon interaction with IL-15 DCs, both towards leukemic cell lines and allogeneic primary AML blasts. Finally, we address soluble IL-15 secreted by IL-15 DCs as the main mechanism behind the IL-15 DC-mediated γδ T cell activation. These results indicate that the application of IL-15-secreting DC subsets could render DC-based anti-cancer vaccines more effective through, among others, the involvement of γδ T cells in the anti-leukemic immune response.
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Affiliation(s)
- Heleen H Van Acker
- Laboratory of Experimental Hematology, Tumor Immunology Group (TIGR), Faculty of Medicine and Health Sciences, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Antwerp, Belgium
| | - Sébastien Anguille
- Division of Hematology, Antwerp University Hospital, Edegem, Belgium.,Center for Cell Therapy and Regenerative Medicine, Antwerp University Hospital, Edegem, Belgium
| | - Hans De Reu
- Laboratory of Experimental Hematology, Tumor Immunology Group (TIGR), Faculty of Medicine and Health Sciences, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Antwerp, Belgium
| | - Zwi N Berneman
- Laboratory of Experimental Hematology, Tumor Immunology Group (TIGR), Faculty of Medicine and Health Sciences, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Antwerp, Belgium.,Division of Hematology, Antwerp University Hospital, Edegem, Belgium.,Center for Cell Therapy and Regenerative Medicine, Antwerp University Hospital, Edegem, Belgium
| | - Evelien L Smits
- Laboratory of Experimental Hematology, Tumor Immunology Group (TIGR), Faculty of Medicine and Health Sciences, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Antwerp, Belgium.,Center for Cell Therapy and Regenerative Medicine, Antwerp University Hospital, Edegem, Belgium.,Center for Oncological Research (CORE), Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Viggo F Van Tendeloo
- Laboratory of Experimental Hematology, Tumor Immunology Group (TIGR), Faculty of Medicine and Health Sciences, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Antwerp, Belgium
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35
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Liu R, Zhang J, Zhang D, Wang K, Luan Y. Self-assembling nanoparticles based on cytarabine prodrug for enhanced leukemia treatment. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2017.12.086] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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36
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Ma J, Dunlap J, Paliga A, Traer E, Press R, Shen L, Fan G. DNMT3A co-mutation is required for FLT3-ITD as an adverse prognostic indicator in intermediate-risk cytogenetic group AML. Leuk Lymphoma 2017; 59:1938-1948. [PMID: 29165010 DOI: 10.1080/10428194.2017.1397659] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
This single institution cohort study of 132 AML patients investigated the clinical implications of co-mutations detected with a 42-gene NGS panel. In the intermediate-risk cytogenetic group, FLT3-ITD is an adverse prognostic indicator only in the presence of a DNMT3A co-mutation, regardless of NPM1 mutation status. In the absence of a concomitant DNMT3A mutation, there was no significant difference in overall survival between FLT3-ITD positive and FLT3-ITD negative patients. Furthermore, mutation analysis on post-induction specimens showed that residual FLT3-ITD and/or DNMT3A mutations were associated with a high frequency of therapy resistance or relapse in AML. While FLT3-ITD positive patients are currently considered high risk, incorporation of DNMT3A mutation status may be needed to refine prognostication and guide clinical management in AML. Multi-gene mutation testing is essential to provide novel insights related to diagnostic and prognostic information.
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Affiliation(s)
- Juan Ma
- a Department of Clinical Laboratory , Xinhua Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai , PR China
| | - Jennifer Dunlap
- b Department of Pathology and Laboratory Medicine , Oregon Health & Science University , Portland , OR , USA
| | | | - Elie Traer
- d Division of Hematology & Medical Oncology, Knight Cancer Institute , Oregon Health & Science University , Portland , OR , USA
| | - Richard Press
- b Department of Pathology and Laboratory Medicine , Oregon Health & Science University , Portland , OR , USA
| | - Lisong Shen
- a Department of Clinical Laboratory , Xinhua Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai , PR China
| | - Guang Fan
- b Department of Pathology and Laboratory Medicine , Oregon Health & Science University , Portland , OR , USA
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