1
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Han LL, Yang X, Dai H, Zhu J. A Case of Philadelphia Chromosome-Positive Acute Lymphoblastic Leukemia with Coexistence of the JAK2V617F Clone. Turk J Haematol 2024; 41:123-125. [PMID: 38528751 DOI: 10.4274/tjh.galenos.2024.2023.0467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024] Open
Affiliation(s)
- Li-Li Han
- The First Affiliated Hospital of Bengbu Medical University, Department of Hematology, Bengbu, China
| | - Xia Yang
- Bengbu Medical University, School of Clinical Medicine, Bengbu, China
| | - Haiping Dai
- The First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Suzhou, China
| | - Junfeng Zhu
- The First Affiliated Hospital of Bengbu Medical University, Department of Hematology, Bengbu, China
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2
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Nian Q, Li Y, Li J, Zhao L, Rodrigues Lima F, Zeng J, Liu R, Ye Z. U2AF1 in various neoplastic diseases and relevant targeted therapies for malignant cancers with complex mutations (Review). Oncol Rep 2024; 51:5. [PMID: 37975232 PMCID: PMC10688450 DOI: 10.3892/or.2023.8664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 11/03/2023] [Indexed: 11/19/2023] Open
Abstract
U2 small nuclear RNA auxiliary factor 1 (U2AF1) is a multifunctional protein that plays a crucial role in the regulation of RNA splicing during eukaryotic gene expression. U2AF1 belongs to the SR family of splicing factors and is involved in the removal of introns from mRNAs and exon-exon binding. Mutations in U2AF1 are frequently observed in myelodysplastic syndrome, primary myelofibrosis, chronic myelomonocytic leukaemia, hairy cell leukaemia and other solid tumours, particularly in lung, pancreatic, and ovarian carcinomas. Therefore, targeting U2AF1 for therapeutic interventions may be a viable strategy for treating malignant diseases. In the present review, the pathogenic mechanisms associated with U2AF1 in different malignant diseases were summarized, and the potential of related targeting agents was discussed. Additionally, the feasibility of natural product-based therapies directed against U2AF1 was explored.
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Affiliation(s)
- Qing Nian
- Department of Transfusion, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan 610072, P.R. China
| | - Yihui Li
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology and Visual Sciences Key Laboratory, Beijing 100730, P.R. China
| | - Jingwei Li
- Department of Transfusion, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan 610072, P.R. China
| | - Liyun Zhao
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 610072, P.R. China
| | - Fernando Rodrigues Lima
- Université Paris Cité, CNRS, Unité de Biologie Fonctionnelle et Adaptative, 75013 Paris, France
| | - Jinhao Zeng
- Department of Gastroenterology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610000, P.R. China
| | - Rongxing Liu
- Department of Pharmacy, The Second Affiliated Hospital, Army Medical University, Chongqing 400000, P.R. China
| | - Zhijun Ye
- Department of Clinical Nutrition, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan 610072, P.R. China
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3
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El Hussein S, O'Dywer KM, Bennett JM. Acute myelofibrosis superseding B-lymphoblastic leukemia/lymphoma. EJHAEM 2023; 4:1179-1181. [PMID: 38024631 PMCID: PMC10660378 DOI: 10.1002/jha2.769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 07/29/2023] [Accepted: 08/02/2023] [Indexed: 12/01/2023]
Affiliation(s)
- Siba El Hussein
- Department of PathologyThe University of Rochester Medical CenterRochesterNew York
| | - Kristen M. O'Dywer
- Department of MedicineThe University of Rochester Medical CenterRochesterNew York
- The Wilmot Cancer InstituteThe University of Rochester Medical CenterRochesterNew York
| | - John M. Bennett
- Department of PathologyThe University of Rochester Medical CenterRochesterNew York
- Department of MedicineThe University of Rochester Medical CenterRochesterNew York
- The Wilmot Cancer InstituteThe University of Rochester Medical CenterRochesterNew York
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4
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Ajufo HO, Waksal JA, Mascarenhas JO, Rampal RK. Treating accelerated and blast phase myeloproliferative neoplasms: progress and challenges. Ther Adv Hematol 2023; 14:20406207231177282. [PMID: 37564898 PMCID: PMC10410182 DOI: 10.1177/20406207231177282] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 05/03/2023] [Indexed: 08/12/2023] Open
Abstract
Myeloproliferative neoplasms (MPNs) are a group of clonal hematologic malignancies that include polycythemia vera (PV), essential thrombocythemia (ET), and myelofibrosis (MF). MPNs are characterized by activating mutations in the JAK/STAT pathway and an increased risk of transformation to an aggressive form of acute leukemia, termed MPN-blast phase (MPN-BP). MPN-BP is characterized by the presence of ⩾20% blasts in the blood or bone marrow and is almost always preceded by an accelerated phase (MPN-AP) defined as ⩾10-19% blasts in the blood or bone marrow. These advanced forms of disease are associated with poor prognosis with a median overall survival (mOS) of 3-5 months in MPN-BP and 13 months in MPN-AP. MPN-AP/BP has a unique molecular landscape characterized by increased intratumoral complexity. Standard therapies used in de novo acute myeloid leukemia (AML) have not demonstrated improvement in OS. Allogeneic hematopoietic stem cell transplant (HSCT) remains the only curative therapy but is associated with significant morbidity and mortality and infrequently utilized in clinical practice. Therefore, an urgent unmet need persists for effective therapies in this advanced phase patient population. Here, we review the current management and future directions of therapy in MPN-AP/BP.
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Affiliation(s)
- Helen O. Ajufo
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Julian A. Waksal
- The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - John O. Mascarenhas
- The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1079, New York, NY 10029, USA
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5
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Chan A, Kumar P, Gao Q, Baik J, Sigler A, Londono D, Liu Y, Arcila ME, Dogan A, Zhang Y, Roshal M, Xiao W. Abnormal B-lymphoblasts in myelodysplastic syndromes and myeloproliferative neoplasms other than chronic myeloid leukemia. CYTOMETRY. PART B, CLINICAL CYTOMETRY 2023; 104:243-252. [PMID: 34897961 PMCID: PMC10520891 DOI: 10.1002/cyto.b.22047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 11/16/2021] [Accepted: 12/01/2021] [Indexed: 05/09/2023]
Abstract
BACKGROUND Lineage infidelity is characteristic of mixed phenotype acute leukemia and is also seen in blast phase of chronic myeloid leukemia (CML), myeloid/lymphoid neoplasia with eosinophilia and gene rearrangements, and subtypes of acute myeloid leukemia. Driver genetic events often occur in multipotent progenitor cells in myeloid neoplasms, suggesting that multilineage output may be more common than appreciated. This phenomenon is not well studied in myelodysplastic syndrome (MDS) and non-CML myeloproliferative neoplasms (MPN). METHODS We systematically evaluated phenotypic lineage infidelity by reviewing bone marrow pathology and flow cytometry (FC) studies of 1262 consecutive patients with a diagnosis of MDS and/or non-CML MPN. We assessed B- and T-cells in these patients by FC. When abnormal B-lymphoblast (ABLB) populations were detected, we additionally evaluated immature B-cells using a high sensitivity FC assay for B-lymphoblastic leukemia/lymphoma (B-ALL). RESULTS We identified 9 patients (7 MDS, 7/713, 1%; 2 non-CML MPN, 2/312, 0.6%; 0 in MDS/MPN) with low-level ABLB populations (0.012%-3.6% of WBCs in marrow) with abnormal immunophenotypes. Genetic studies on flow sorted cell populations confirmed that some ABLB populations were clonally related to myeloid blasts (4/6, 67%). On follow-up, ABLB populations in 8/9 patients remained stable or disappeared. Only 1 case progressed to B-ALL. CONCLUSIONS These findings demonstrate that phenotypically detectable abnormal immature B lineage output occurs in MDS and non-CML MPN, albeit rarely. While presence of ABLB does not necessarily reflect blast crisis, the underlying disease biology of our findings may ultimately be relevant to patient management and warrants further investigation.
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Affiliation(s)
- Alexander Chan
- Department of Pathology, Hematopathology Service, Memorial
Sloan Kettering Cancer Center
| | - Priyadarshini Kumar
- Department of Pathology, Hematopathology Service, Memorial
Sloan Kettering Cancer Center
| | - Qi Gao
- Department of Pathology, Hematopathology Service, Memorial
Sloan Kettering Cancer Center
| | - Jeeyeon Baik
- Department of Pathology, Hematopathology Service, Memorial
Sloan Kettering Cancer Center
| | - Allison Sigler
- Department of Pathology, Hematopathology Service, Memorial
Sloan Kettering Cancer Center
| | - Dory Londono
- Department of Pathology, Cytogenetics Laboratory, Memorial
Sloan Kettering Cancer Center
| | - Ying Liu
- Department of Pathology, Hematopathology Service, Memorial
Sloan Kettering Cancer Center
- Department of Pathology, Molecular Diagnostic Laboratory,
Memorial Sloan Kettering Cancer Center
| | - Maria E. Arcila
- Department of Pathology, Hematopathology Service, Memorial
Sloan Kettering Cancer Center
- Department of Pathology, Molecular Diagnostic Laboratory,
Memorial Sloan Kettering Cancer Center
| | - Ahmet Dogan
- Department of Pathology, Hematopathology Service, Memorial
Sloan Kettering Cancer Center
| | - Yanming Zhang
- Department of Pathology, Hematopathology Service, Memorial
Sloan Kettering Cancer Center
- Department of Pathology, Cytogenetics Laboratory, Memorial
Sloan Kettering Cancer Center
| | - Mikhail Roshal
- Department of Pathology, Hematopathology Service, Memorial
Sloan Kettering Cancer Center
| | - Wenbin Xiao
- Department of Pathology, Hematopathology Service, Memorial
Sloan Kettering Cancer Center
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6
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Visani G, Etebari M, Fuligni F, Di Guardo A, Isidori A, Loscocco F, Paolini S, Navari M, Piccaluga PP. Use of Next Generation Sequencing to Define the Origin of Primary Myelofibrosis. Cancers (Basel) 2023; 15:cancers15061785. [PMID: 36980671 PMCID: PMC10046249 DOI: 10.3390/cancers15061785] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/06/2023] [Accepted: 03/08/2023] [Indexed: 03/18/2023] Open
Abstract
Primary myelofibrosis (PMF) is a chronic myeloproliferative neoplasm (MPN) characterized by progressive bone marrow sclerosis, extra-medullary hematopoiesis, and possible transformation to acute leukemia. In the last decade, the molecular pathogenesis of the disease has been largely uncovered. Particularly, genetic and genomic studies have provided evidence of deregulated oncogenes in PMF as well as in other MPNs. However, the mechanisms through which transformation to either the myeloid or lymphoid blastic phase remain obscure. Particularly, it is still debated whether the disease has origins in a multi-potent hematopoietic stem cells or instead in a commissioned myeloid progenitor. In this study, we aimed to shed light upon this issue by using next generation sequencing (NGS) to study both myeloid and lymphoid cells as well as matched non-neoplastic DNA of PMF patients. Whole exome sequencing revealed that most somatic mutations were the same between myeloid and lymphoid cells, such findings being confirmed by Sanger sequencing. Particularly, we found 126/146 SNVs to be the e same (including JAK2V617F), indicating that most genetic events likely to contribute to disease pathogenesis occurred in a non-commissioned precursor. In contrast, only 9/27 InDels were similar, suggesting that this type of lesion contributed instead to disease progression, occurring at more differentiated stages, or maybe just represented “passenger” lesions, not contributing at all to disease pathogenesis. In conclusion, we showed for the first time that genetic lesions characteristic of PMF occur at an early stage of hematopoietic stem cell differentiation, this being in line with the possible transformation of the disease in either myeloid or lymphoid acute leukemia.
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Affiliation(s)
- Giuseppe Visani
- Hematology and Stem Cell Transplantation, AORMIN, 61121 Pesaro, Italy
| | - Maryam Etebari
- Department of Medical Biotechnology, School of Paramedical Sciences, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh 33787-95196, Iran
- Research Center of Advanced Technologies in Medicine, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh 33787-95196, Iran
- Department of Medical Science and Surgery (DIMEC), University of Bologna, 40126 Bologna, Italy
| | - Fabio Fuligni
- The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Antonio Di Guardo
- Department of Medical Science and Surgery (DIMEC), University of Bologna, 40126 Bologna, Italy
| | | | - Federica Loscocco
- Hematology and Stem Cell Transplantation, AORMIN, 61121 Pesaro, Italy
| | - Stefania Paolini
- Biobank of Research, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Mohsen Navari
- Department of Medical Biotechnology, School of Paramedical Sciences, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh 33787-95196, Iran
- Research Center of Advanced Technologies in Medicine, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh 33787-95196, Iran
- Bioinformatics Research Center, Mashhad University of Medical Sciences, Mashhad 91778-99191, Iran
| | - Pier Paolo Piccaluga
- Department of Medical Science and Surgery (DIMEC), University of Bologna, 40126 Bologna, Italy
- Biobank of Research, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
- Correspondence: ; Tel.:+39-0512144043; Fax:+39-0512144037
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7
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Kallen ME, Koka R, Singh ZN, Ning Y, Kocoglu MH, Badros AZ, Niyongere S, Duong VH, Emadi A, Baer MR. Therapy-related B-lymphoblastic leukemia after multiple myeloma. Leuk Res Rep 2022; 18:100358. [PMID: 36353199 PMCID: PMC9637917 DOI: 10.1016/j.lrr.2022.100358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/29/2022] [Accepted: 10/30/2022] [Indexed: 11/07/2022] Open
Abstract
New therapies for multiple myeloma have improved outcomes, but are associated with therapy-related hematologic malignancies. We report eight patients with therapy-related B-lymphoblastic leukemias (t-B-ALL) in the setting of therapy for multiple myeloma, which included lenalidomide maintenance. A subset of patients had pancytopenia and low-level marrow involvement by acute leukemia, an unusual finding in de novo B-ALL. One patient died of chemotherapy complications; the other seven responded. No patient died of B-ALL (median follow up of 1.0 years). Our series suggests that t-B-ALL is clonally unrelated to myeloma, presents with diverse cytogenetic abnormalities, and responds well to B-ALL therapy.
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Affiliation(s)
- Michael E. Kallen
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, United States
- Corresponding author at: Department of Pathology, University of Maryland School of Medicine, 22 S. Greene St., NBW-54, 21201, Baltimore, MD.
| | - Rima Koka
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Zeba N. Singh
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Yi Ning
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Mehmet H. Kocoglu
- Department of Medicine, Division of Hematology/Oncology, University of Maryland School of Medicine, Baltimore, MD, United States
- University of Maryland Greenebaum Comprehensive Cancer Center, Baltimore, MD, , United States
| | - Ashraf Z. Badros
- Department of Medicine, Division of Hematology/Oncology, University of Maryland School of Medicine, Baltimore, MD, United States
- University of Maryland Greenebaum Comprehensive Cancer Center, Baltimore, MD, , United States
| | - Sandrine Niyongere
- Department of Medicine, Division of Hematology/Oncology, University of Maryland School of Medicine, Baltimore, MD, United States
- University of Maryland Greenebaum Comprehensive Cancer Center, Baltimore, MD, , United States
| | - Vu H. Duong
- Department of Medicine, Division of Hematology/Oncology, University of Maryland School of Medicine, Baltimore, MD, United States
- University of Maryland Greenebaum Comprehensive Cancer Center, Baltimore, MD, , United States
| | - Ashkan Emadi
- Department of Medicine, Division of Hematology/Oncology, University of Maryland School of Medicine, Baltimore, MD, United States
- University of Maryland Greenebaum Comprehensive Cancer Center, Baltimore, MD, , United States
| | - Maria R. Baer
- Department of Medicine, Division of Hematology/Oncology, University of Maryland School of Medicine, Baltimore, MD, United States
- University of Maryland Greenebaum Comprehensive Cancer Center, Baltimore, MD, , United States
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8
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Medawar G, Ackula H, Weinberg O, Roberts T, Meleveedu K. T-cell Acute Lymphoblastic Leukemia in a Patient with Pre-existing Essential Thrombocythemia: A Case Report and Literature Review. Leuk Res Rep 2021; 16:100264. [PMID: 34430196 PMCID: PMC8367827 DOI: 10.1016/j.lrr.2021.100264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/25/2021] [Accepted: 08/06/2021] [Indexed: 11/05/2022] Open
Abstract
The occurrence of T–cell acute lymphoblastic leukemia (T–ALL), on a background of preexisting Philadelphia–negative Myeloproliferative neoplasm is rare. Among the few reported cases where no deep molecular sequencing was performed, it was difficult to ascertain whether these leukemia's occurred de-novo or were due to the clonal progression of underlying MPN. We present a case of a 49–year-old man with a history of essential thrombocythemia who subsequently developed T–ALL. By utilizing next generation sequencing we were able to determine that these two entities originated from two distinct clones and were likely random events. We report the outcome and review the literature.
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Affiliation(s)
- Georgio Medawar
- Department of Internal Medicine, Roger Williams Medical Center, 825 Chalkstone Ave, Providence, RI 02908, United States
| | - Haritha Ackula
- Department of Hematology and Oncology, Roger Williams Medical Center, 825 Chalkstone Ave, Providence, RI 02908, United States
| | - Olga Weinberg
- Department of Pathology, Roger Williams Medical Center, 825 Chalkstone Ave, Providence, RI 02908, United States
| | - Todd Roberts
- Department of Hematology and Oncology, Bone Marrow Transplant, Roger Williams Medical Center, 825 Chalkstone Ave, Providence, RI 02908, United States
| | - Kapil Meleveedu
- Department of Hematology and Oncology, Bone Marrow Transplant, Roger Williams Medical Center, 825 Chalkstone Ave, Providence, RI 02908, United States
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9
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Chen Y, Talukder R, Merritt BY, King KY, Kimmel M, Rivero G, Sosa R. Genomic trajectory in leukemogenesis of myeloproliferative neoplasms: a case report. BMC Med Genomics 2021; 14:137. [PMID: 34022887 PMCID: PMC8141236 DOI: 10.1186/s12920-021-00986-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 05/18/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND We report a patient with Essential Thrombocythemia (ET), subsequently diagnosed with concurrent myeloid and lymphoid leukemia. Generally, the molecular mechanisms underlying leukemic transformation of Philadelphia-negative myeloproliferative neoplasms (Ph-MPN) are poorly understood. Risk of transformation to acute myelogenous leukemia (AML) is low; transformation to both AML and acute lymphoblastic leukemia (ALL) is extremely low. Genetic defects, including allele burden, order of mutation acquisition, clonal heterogeneity and epigenetic mechanisms are important contributors to disease acceleration. CASE PRESENTATION A 78-year-old Caucasian female originally treated for stable ET, underwent disease acceleration and transition to myeloid sarcoma and B-cell ALL. Genomic reconstruction based on targeted sequencing revealed the presence of a large del(5q) in all three malignancies and somatic driver mutations: TET2, TP53, SF3B1, and ASXL1 at high allele frequency. We propose that the combination of genetic and molecular abnormalities led to hematopoietic stem cell (HSC) injury and disease progression through sub-clone branching. We hypothesize that ancestral reconstruction of genomic data is a useful tool to uncover subclonal events leading to transformation. CONCLUSIONS The use of ancestral reconstruction of genomic data sheds light on the unique clinical scenario described in this case report. By determining the mutational profile of tumors at several timepoints and deducing the most parsimonious relationship between them, we propose a reconstruction of their origin. We propose that blast progression originated from subclonal events with malignant potential, which coexisted with but did not originate from JAK2 p.V617F-positive ET. We conclude that the application of genomic reconstruction enhances our understanding of leukemogenesis by identifying the timing of molecular events, potentially leading to better chemotherapy choices as well as the development of new targeted therapies.
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Affiliation(s)
- Yujie Chen
- Department of Statistics and Bioengineering, Rice University, 6100 Main Street, Houston, TX, USA
| | - Rafee Talukder
- Department of Medicine, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
| | - Brian Y Merritt
- The Dan L. Duncan Comprehensive Cancer Center at Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Department of Pathology and Immunology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Department of Molecular and Human Genetics, Baylor Genetics and Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
| | - Katherine Y King
- The Dan L. Duncan Comprehensive Cancer Center at Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Department of Pediatrics, Section of Infectious Disease, Baylor College of Medicine, 1102 Bates St. Suite 1150, Houston, TX, USA
| | - Marek Kimmel
- Department of Statistics and Bioengineering, Rice University, 6100 Main Street, Houston, TX, USA
| | - Gustavo Rivero
- Department of Medicine, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Fox Chase Cancer Center, 333 Cottman Ave, Philadelphia, PA, 19111, USA
- Section of Hematology and Oncology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
| | - Romina Sosa
- The Dan L. Duncan Comprehensive Cancer Center at Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA.
- Fox Chase Cancer Center, 333 Cottman Ave, Philadelphia, PA, 19111, USA.
- Section of Hematology and Oncology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA.
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10
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Abstract
Accelerated and blast phase myeloproliferative neoplasms are advanced stages of the disease with historically a poor prognosis and little improvement in outcomes thus far. The lack of responses to standard treatments likely results from the more aggressive biology reflected by the higher incidence of complex karyotype and high-risk somatic mutations, which are enriched at the time of transformation. Treatment options include induction chemotherapy (7 + 3) as that used on de novo acute myeloid leukemia or hypomethylating agent-based therapy, which has shown similar outcomes. Allogeneic stem cell transplantation remains the only potential for cure.
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Affiliation(s)
- Tania Jain
- Division of Hematological Malignancies and Stem Cell Transplantation, Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins University, 1650 Orleans Street, Baltimore, MD 21287, USA.
| | - Raajit K Rampal
- Leukemia Service, Department of Medicine, Memorial Sloan Kettering, 530 East 74th Street, New York, NY 10021, USA. https://twitter.com/RaajitRampal
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11
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Janus Kinases in Leukemia. Cancers (Basel) 2021; 13:cancers13040800. [PMID: 33672930 PMCID: PMC7918039 DOI: 10.3390/cancers13040800] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 01/12/2023] Open
Abstract
Janus kinases (JAKs) transduce signals from dozens of extracellular cytokines and function as critical regulators of cell growth, differentiation, gene expression, and immune responses. Deregulation of JAK/STAT signaling is a central component in several human diseases including various types of leukemia and other malignancies and autoimmune diseases. Different types of leukemia harbor genomic aberrations in all four JAKs (JAK1, JAK2, JAK3, and TYK2), most of which are activating somatic mutations and less frequently translocations resulting in constitutively active JAK fusion proteins. JAKs have become important therapeutic targets and currently, six JAK inhibitors have been approved by the FDA for the treatment of both autoimmune diseases and hematological malignancies. However, the efficacy of the current drugs is not optimal and the full potential of JAK modulators in leukemia is yet to be harnessed. This review discusses the deregulation of JAK-STAT signaling that underlie the pathogenesis of leukemia, i.e., mutations and other mechanisms causing hyperactive cytokine signaling, as well as JAK inhibitors used in clinic and under clinical development.
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12
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Dunbar AJ, Rampal RK, Levine R. Leukemia secondary to myeloproliferative neoplasms. Blood 2020; 136:61-70. [PMID: 32430500 PMCID: PMC7332899 DOI: 10.1182/blood.2019000943] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 01/23/2020] [Indexed: 12/11/2022] Open
Abstract
Secondary acute myeloid leukemias (AMLs) evolving from an antecedent myeloproliferative neoplasm (MPN) are characterized by a unique set of cytogenetic and molecular features distinct from de novo AML. Given the high frequency of poor-risk cytogenetic and molecular features, malignant clones are frequently insensitive to traditional AML chemotherapeutic agents. Allogeneic stem cell transplant, the only treatment modality shown to have any beneficial long-term outcome, is often not possible given the advanced age of patients at time of diagnosis and frequent presence of competing comorbidities. Even in this setting, relapse rates remain high. As a result, outcomes are generally poor and there remains a significant unmet need for novel therapeutic strategies. Although advances in cancer genomics have dramatically enhanced our understanding of the molecular events governing clonal evolution in MPNs, the cell-intrinsic and -extrinsic mechanisms driving leukemic transformation at this level remain poorly understood. Here, we review known risk factors for the development of leukemic transformation in MPNs, recent progress made in our understanding of the molecular features associated with leukemic transformation, current treatment strategies, and emerging therapeutic options for this high-risk myeloid malignancy.
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MESH Headings
- Abnormal Karyotype
- Allografts
- Antineoplastic Agents/therapeutic use
- Cell Transformation, Neoplastic
- Chromosome Aberrations
- Clonal Evolution
- Combined Modality Therapy
- Comorbidity
- Disease Progression
- Drug Resistance, Neoplasm
- Drugs, Investigational/therapeutic use
- Genes, Neoplasm
- Hematopoietic Stem Cell Transplantation
- Humans
- Leukemia, Myeloid, Acute/etiology
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/pathology
- Leukemia, Myeloid, Acute/therapy
- Models, Biological
- Mutation
- Myeloproliferative Disorders/genetics
- Myeloproliferative Disorders/pathology
- Neoplasm Proteins/genetics
- Recurrence
- Risk Factors
- Single-Cell Analysis
- Therapies, Investigational
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Affiliation(s)
- Andrew J Dunbar
- Leukemia Service, Department of Medicine
- Center for Hematologic Malignancies
| | - Raajit K Rampal
- Leukemia Service, Department of Medicine
- Center for Hematologic Malignancies
| | - Ross Levine
- Leukemia Service, Department of Medicine
- Center for Hematologic Malignancies
- Human Oncology and Pathogenesis Program, and
- Center for Epigenetics Research, Memorial Sloan Kettering Cancer Center, New York, NY
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13
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How I treat the blast phase of Philadelphia chromosome–negative myeloproliferative neoplasms. Blood 2018; 132:2339-2350. [DOI: 10.1182/blood-2018-03-785907] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 10/06/2018] [Indexed: 12/30/2022] Open
Abstract
The classic Philadelphia chromosome (Ph)–negative myeloproliferative neoplasms (MPNs) are a heterogeneous group of hematopoietic stem-cell diseases, characterized by activated JAK/STAT signaling and significant phenotypic mimicry, including a propensity for evolution to myeloid blast phase disease. Effective therapeutic options are limited for patients with Ph− MPNs in the blast phase (MPN-BP), and allogeneic stem-cell transplantation is the only known cure. Our increasing understanding of the molecular pathogenesis of this group of diseases, coupled with the increasing availability of targeted agents, has the potential to inform new subset-specific therapeutic approaches. Ultimately, progress in MPN-BP will hinge on prospective clinical and translational investigations with the goal of generating more effective treatment interventions. This case-based review highlights the molecular and clinical heterogeneities of MPN-BP and incorporates a treatment algorithm that underscores the importance of a personalized approach to this challenging group of diseases.
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14
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Alhuraiji A, Naqvi K, Huh YO, Ho C, Verstovsek S, Bose P. Acute lymphoblastic leukemia secondary to myeloproliferative neoplasms or after lenalidomide exposure. Clin Case Rep 2017; 6:155-161. [PMID: 29375856 PMCID: PMC5771935 DOI: 10.1002/ccr3.1264] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 09/02/2017] [Accepted: 09/29/2017] [Indexed: 11/06/2022] Open
Abstract
Philadelphia‐negative (Ph−) myeloproliferative neoplasms (MPN) do rarely transform to acute lymphoblastic leukemia (ALL). While causality is difficult to establish, a few cases of ALL arising after exposure to lenalidomide for registered indications (multiple myeloma, myelodysplastic syndrome with 5q deletion) have been described in the literature.
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Affiliation(s)
- Ahmad Alhuraiji
- Department of Leukemia University of Texas MD Anderson Cancer Center Houston 77030 Texas
| | - Kiran Naqvi
- Department of Leukemia University of Texas MD Anderson Cancer Center Houston 77030 Texas
| | - Yang O Huh
- Department of Hematopathology University of Texas MD Anderson Cancer Center Houston 77030 Texas
| | - Coty Ho
- Oklahoma Cancer Specialists and Research Institute Tulsa 74133 Oklahoma
| | - Srdan Verstovsek
- Department of Leukemia University of Texas MD Anderson Cancer Center Houston 77030 Texas
| | - Prithviraj Bose
- Department of Leukemia University of Texas MD Anderson Cancer Center Houston 77030 Texas
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