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Colita A, Tanase AD, Tomuleasa C, Colita A. Hematopoietic Stem Cell Transplantation in Acute Promyelocytic Leukemia in the Era of All-Trans Retinoic Acid (ATRA) and Arsenic Trioxide (ATO). Cancers (Basel) 2023; 15:4111. [PMID: 37627139 PMCID: PMC10452822 DOI: 10.3390/cancers15164111] [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: 07/13/2023] [Revised: 08/03/2023] [Accepted: 08/13/2023] [Indexed: 08/27/2023] Open
Abstract
Acute promyelocytic leukemia (APL) currently represents one of the malignant hemopathies with the best therapeutic responses, following the introduction of all-trans retinoic acid (ATRA) and subsequently of arsenic trioxide (ATO) treatment. As a result, a large proportion of patients with APL achieve long-term responses after first-line therapy, so performing a hematopoietic stem cell transplant as consolidation of first complete remission (CR) is no longer necessary. Even in the case of relapses, most patients obtain a new remission as a result of therapy with ATO and ATRA, but an effective consolidation treatment is necessary to maintain it. The experience accumulated from studies published in the last two decades shows the effectiveness of hematopoietic stem cell transplantation (HSCT) in improving the outcome of patients who achieve a new CR. Thus, the expert groups recommend transplantation as consolidation therapy in patients with a second CR, with the indication for autologous HSCT in cases with molecular CR and for allogeneic HSCT in patients with the persistence of minimal residual disease (MRD) or with early relapse. However, there is a variety of controversial aspects related to the role of HSCT in APL, ranging from the fact that outcome data are obtained almost exclusively from retrospective studies and historical analyses to questions related to the type of transplantation, the impact of minimal residual disease, conditioning regimens, or the role of other therapeutic options. All these questions justify the need for controlled prospective studies in the following years.
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Affiliation(s)
- Andrei Colita
- Department of Hematology, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Department of Hematology, Coltea Clinical Hospital, 030171 Bucharest, Romania
| | - Alina Daniela Tanase
- Department of Bone Marrow Transplantation, Fundeni Clinical Institute, 022338 Bucharest, Romania
- Department of Transplant Immunology, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Ciprian Tomuleasa
- Department of Hematology, Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj Napoca, Romania
- Department of Hematology, Ion Chiricuta Clinical Cancer Center, 400015 Cluj Napoca, Romania
| | - Anca Colita
- Department of Bone Marrow Transplantation, Fundeni Clinical Institute, 022338 Bucharest, Romania
- Department of Pediatrics, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
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2
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Kong Y, Jiang C, Wei G, Sun K, Wang R, Qiu T. Small Molecule Inhibitors as Therapeutic Agents Targeting Oncogenic Fusion Proteins: Current Status and Clinical. Molecules 2023; 28:4672. [PMID: 37375228 DOI: 10.3390/molecules28124672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 05/30/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
Oncogenic fusion proteins, arising from chromosomal rearrangements, have emerged as prominent drivers of tumorigenesis and crucial therapeutic targets in cancer research. In recent years, the potential of small molecular inhibitors in selectively targeting fusion proteins has exhibited significant prospects, offering a novel approach to combat malignancies harboring these aberrant molecular entities. This review provides a comprehensive overview of the current state of small molecular inhibitors as therapeutic agents for oncogenic fusion proteins. We discuss the rationale for targeting fusion proteins, elucidate the mechanism of action of inhibitors, assess the challenges associated with their utilization, and provide a summary of the clinical progress achieved thus far. The objective is to provide the medicinal community with current and pertinent information and to expedite the drug discovery programs in this area.
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Affiliation(s)
- Yichao Kong
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, China
| | - Caihong Jiang
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, China
| | - Guifeng Wei
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, China
| | - Kai Sun
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, China
| | - Ruijie Wang
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, China
| | - Ting Qiu
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, China
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3
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Wang QQ, Hussain L, Yu PH, Yang C, Zhu CY, Ma YF, Wang SC, Yang T, Kang YY, Yu WJ, Maimaitiyiming Y, Naranmandura H. Hyperthermia promotes degradation of the acute promyelocytic leukemia driver oncoprotein ZBTB16/RARα. Acta Pharmacol Sin 2023; 44:822-831. [PMID: 36216898 PMCID: PMC10042863 DOI: 10.1038/s41401-022-01001-6] [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: 06/06/2022] [Accepted: 09/13/2022] [Indexed: 11/09/2022] Open
Abstract
The acute promyelocytic leukemia (APL) driver ZBTB16/RARα is generated by the t(11;17) (q23;q21) chromosomal translocation, which is resistant to combined treatment of all-trans retinoic acid (ATRA) and arsenic trioxide (ATO) or conventional chemotherapy, resulting in extremely low survival rates. In the current study, we investigated the effects of hyperthermia on the oncogenic fusion ZBTB16/RARα protein to explore a potential therapeutic approach for this variant APL. We showed that Z/R fusion protein expressed in HeLa cells was resistant to ATO, ATRA, and conventional chemotherapeutic agents. However, mild hyperthermia (42 °C) rapidly destabilized the ZBTB16/RARα fusion protein expressed in HeLa, 293T, and OCI-AML3 cells, followed by robust ubiquitination and proteasomal degradation. In contrast, hyperthermia did not affect the normal (i.e., unfused) ZBTB16 and RARα proteins, suggesting a specific thermal sensitivity of the ZBTB16/RARα fusion protein. Importantly, we found that the destabilization of ZBTB16/RARα was the initial step for oncogenic fusion protein degradation by hyperthermia, which could be blocked by deletion of nuclear receptor corepressor (NCoR) binding sites or knockdown of NCoRs. Furthermore, SIAH2 was identified as the E3 ligase participating in hyperthermia-induced ubiquitination of ZBTB16/RARα. In short, these results demonstrate that hyperthermia could effectively destabilize and subsequently degrade the ZBTB16/RARα fusion protein in an NCoR-dependent manner, suggesting a thermal-based therapeutic strategy that may improve the outcome in refractory ZBTB16/RARα-driven APL patients in the clinic.
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Affiliation(s)
- Qian-Qian Wang
- Department of Hematology of First Affiliated Hospital, and Department of Public Health, Zhejiang University School of Medicine, Hangzhou, 310003, China
- Zhejiang Province Key Laboratory of Haematology Oncology Diagnosis and Treatment, Hangzhou, 310003, China
- Cancer Center, Zhejiang University, Hangzhou, 310058, China
| | - Liaqat Hussain
- Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, 38000, Pakistan
| | - Pei-Han Yu
- Department of Hematology of First Affiliated Hospital, and Department of Public Health, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Chang Yang
- Department of Hematology of First Affiliated Hospital, and Department of Public Health, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Chen-Ying Zhu
- Department of Hematology of First Affiliated Hospital, and Department of Public Health, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Ya-Fang Ma
- Department of Hematology, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Si-Chun Wang
- Department of Hematology of First Affiliated Hospital, and Department of Public Health, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Tao Yang
- Department of Hematology of First Affiliated Hospital, and Department of Public Health, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Yuan-Yuan Kang
- Department of Hematology of First Affiliated Hospital, and Department of Public Health, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Wen-Juan Yu
- Department of Hematology, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Yasen Maimaitiyiming
- Department of Hematology of First Affiliated Hospital, and Department of Public Health, Zhejiang University School of Medicine, Hangzhou, 310003, China.
- Department of Neurobiology, NHC and CAMS Key Laboratory of Medical Neurobiology, School of Brain Science and Brain Medicine, and MOE Frontier Science Center for Brain Science and Brain-machine Integration, Zhejiang University School of Medicine, Hangzhou, 310031, China.
| | - Hua Naranmandura
- Department of Hematology of First Affiliated Hospital, and Department of Public Health, Zhejiang University School of Medicine, Hangzhou, 310003, China.
- Zhejiang Province Key Laboratory of Haematology Oncology Diagnosis and Treatment, Hangzhou, 310003, China.
- Cancer Center, Zhejiang University, Hangzhou, 310058, China.
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4
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Guarnera L, Ottone T, Fabiani E, Divona M, Savi A, Travaglini S, Falconi G, Panetta P, Rapanotti MC, Voso MT. Atypical Rearrangements in APL-Like Acute Myeloid Leukemias: Molecular Characterization and Prognosis. Front Oncol 2022; 12:871590. [PMID: 35494081 PMCID: PMC9039303 DOI: 10.3389/fonc.2022.871590] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 02/25/2022] [Indexed: 02/02/2023] Open
Abstract
Acute promyelocytic leukemia (APL) accounts for 10–15% of newly diagnosed acute myeloid leukemias (AML) and is typically caused by the fusion of promyelocytic leukemia with retinoic acid receptor α (RARA) gene. The prognosis is excellent, thanks to the all-trans retinoic acid (ATRA) and arsenic trioxide (ATO) combination therapy. A small percentage of APLs (around 2%) is caused by atypical transcripts, most of which involve RARA or other members of retinoic acid receptors (RARB or RARG). The diagnosis of these forms is difficult, and clinical management is still a challenge for the physician due to variable response rates to ATRA and ATO. Herein we review variant APL cases reported in literature, including genetic landscape, incidence of coagulopathy and differentiation syndrome, frequent causes of morbidity and mortality in these patients, sensitivity to ATRA, ATO, and chemotherapy, and outcome. We also focus on non-RAR rearrangements, complex rearrangements (involving more than two chromosomes), and NPM1-mutated AML, an entity that can, in some cases, morphologically mimic APL.
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Affiliation(s)
- Luca Guarnera
- Department of Biomedicine and Prevention, University of Tor Vergata, Rome, Italy
| | - Tiziana Ottone
- Department of Biomedicine and Prevention, University of Tor Vergata, Rome, Italy.,Santa Lucia Foundation, Istituto di Ricovero e Cura a Carattere Scientifico (I.R.C.C.S.) Neuro-Oncohematology, Rome, Italy
| | - Emiliano Fabiani
- Department of Biomedicine and Prevention, University of Tor Vergata, Rome, Italy.,Department of Biomedicine and Prevention, UniCamillus-Saint Camillus International University of Health Sciences, Rome, Italy
| | - Mariadomenica Divona
- Department of Biomedicine and Prevention, University of Tor Vergata, Rome, Italy
| | - Arianna Savi
- Department of Biomedicine and Prevention, University of Tor Vergata, Rome, Italy
| | - Serena Travaglini
- Department of Biomedicine and Prevention, University of Tor Vergata, Rome, Italy
| | - Giulia Falconi
- Department of Biomedicine and Prevention, University of Tor Vergata, Rome, Italy
| | - Paola Panetta
- Department of Biomedicine and Prevention, University of Tor Vergata, Rome, Italy
| | - Maria Cristina Rapanotti
- Department of Biomedicine and Prevention, University of Tor Vergata, Rome, Italy.,Department of Experimental Medicine, Tor Vergata University of Rome, Rome, Italy
| | - Maria Teresa Voso
- Department of Biomedicine and Prevention, University of Tor Vergata, Rome, Italy.,Santa Lucia Foundation, Istituto di Ricovero e Cura a Carattere Scientifico (I.R.C.C.S.) Neuro-Oncohematology, Rome, Italy
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5
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Cicconi L, Testi AM, Montesinos P, Rego E, Zhu HH, Takahashi H, Dworzak M, Estey E, Schwarer A, Esteve J, Annibali O, Castelli R, Mirabile M, Angelini M, Lazarevic V, Kumar J, Avvisati G, Gurnari C, Locatelli F, Voso MT, Sanz MA, Lo-Coco F, Abla O. Characteristics and outcome of acute myeloid leukemia with uncommon retinoic acid receptor-alpha (RARA) fusion variants. Blood Cancer J 2021; 11:167. [PMID: 34657125 PMCID: PMC8520532 DOI: 10.1038/s41408-021-00561-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 06/03/2021] [Accepted: 06/16/2021] [Indexed: 01/09/2023] Open
Affiliation(s)
- Laura Cicconi
- Department of Biomedicine and Prevention, University Tor Vergata, Rome, Italy. .,UOSD Ematologia, ASL Roma 1, Rome, Italy.
| | - Anna Maria Testi
- Department of Translational and Precision Medicine and Hematology, 'Sapienza' University, Rome, Italy
| | - Pau Montesinos
- Department of Hematology, Hospital Universitari i Politècnico la Fe, València, Spain
| | - Eduardo Rego
- Department of Internal Medicine, Medical School of Ribeirao Preto, Ribeirao Preto, Brazil
| | - Hong Hu Zhu
- Department of Hematology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | | | - Michael Dworzak
- Children's Cancer Research Institute and St Anna Children's Hospital, Department of Pediatrics, Medical University of Vienna, Vienna, Austria
| | - Elihu Estey
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Anthony Schwarer
- Department of Hematology and Oncology, Eastern School, Monash University, Melbourne, VIC, Australia
| | - Jordi Esteve
- Servicio de Hematología, Instituto Clínic de Enfermedades Hematológicas y Oncológicas, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Ombretta Annibali
- Hematology and Stem Cells Transplantation Unit, University Campus Bio-Medico, Rome, Italy
| | - Roberto Castelli
- Department of Biomedical and Clinical Sciences Luigi Sacco, University of Milan, Luigi Sacco Hospital, Milano, Italy
| | - Milena Mirabile
- HematologyUnit, Ospedale di Civitanova Marche, Macerata, Italy
| | | | - Vladimir Lazarevic
- Department of Hematology, Oncology and Radiation Physics, Skåne University Hospital, Lund, Sweden
| | - Jeevan Kumar
- Department of Clinical Haematology and BMT Tata Medical Center, Kolkata, India
| | - Giuseppe Avvisati
- Hematology and Stem Cells Transplantation Unit, University Campus Bio-Medico, Rome, Italy
| | - Carmelo Gurnari
- Department of Biomedicine and Prevention, University Tor Vergata, Rome, Italy
| | - Franco Locatelli
- Department of Pediatric Hematology/Oncology, IRCCS Ospedale Pediatrico Bambino Gesu, Rome, Italy.,Department of Pediatrics, Sapienza, University of Rome, Rome, Italy
| | - Maria Teresa Voso
- Department of Biomedicine and Prevention, University Tor Vergata, Rome, Italy
| | - Miguel Angel Sanz
- Department of Hematology, Hospital Universitari i Politècnico la Fe, València, Spain
| | - Francesco Lo-Coco
- Department of Biomedicine and Prevention, University Tor Vergata, Rome, Italy
| | - Oussama Abla
- Division of Hematology/Oncology, Department of Pediatrics, the Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
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Genomic Abnormalities as Biomarkers and Therapeutic Targets in Acute Myeloid Leukemia. Cancers (Basel) 2021; 13:cancers13205055. [PMID: 34680203 PMCID: PMC8533805 DOI: 10.3390/cancers13205055] [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: 09/11/2021] [Revised: 10/01/2021] [Accepted: 10/08/2021] [Indexed: 11/17/2022] Open
Abstract
Simple Summary AML is a heterogenous malignancy with a variety of underlying genomic abnormalities. Some of the genetic aberrations in AML have led to the development of specific inhibitors which were approved by the Food and Drug Administration (FDA) and are currently used to treat eligible patients. In this review, we describe five gene mutations for which approved inhibitors have been developed, the response of AML patients to these inhibitors, and the known mechanism(s) of resistance. This review also highlights the significance of developing function-based screens for target discovery in the era of personalized medicine. Abstract Acute myeloid leukemia (AML) is a highly heterogeneous malignancy characterized by the clonal expansion of myeloid stem and progenitor cells in the bone marrow, peripheral blood, and other tissues. AML results from the acquisition of gene mutations or chromosomal abnormalities that induce proliferation or block differentiation of hematopoietic progenitors. A combination of cytogenetic profiling and gene mutation analyses are essential for the proper diagnosis, classification, prognosis, and treatment of AML. In the present review, we provide a summary of genomic abnormalities in AML that have emerged as both markers of disease and therapeutic targets. We discuss the abnormalities of RARA, FLT3, BCL2, IDH1, and IDH2, their significance as therapeutic targets in AML, and how various mechanisms cause resistance to the currently FDA-approved inhibitors. We also discuss the limitations of current genomic approaches for producing a comprehensive picture of the activated signaling pathways at diagnosis or at relapse in AML patients, and how innovative technologies combining genomic and functional methods will improve the discovery of novel therapeutic targets in AML. The ultimate goal is to optimize a personalized medicine approach for AML patients and possibly those with other types of cancers.
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Yan Q, Lin YN, Huang XQ, Qian LZ, Ma JT, Zhang H, Chen L, Chen XJ, Mi YC, Ru K. [Analysis of fusion gene expression in acute myeloid leukemia]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2021; 42:480-486. [PMID: 34384154 PMCID: PMC8295623 DOI: 10.3760/cma.j.issn.0253-2727.2021.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objective: To analyze the genetic landscape of multiple fusion genes in patients with de novo acute myeloid leukemia (AML) and investigate the characteristics of immunophenotypes and mutations. Methods: The results of multiple fusion genes from 4192 patients with de novo AML were retrospectively analyzed from 2016 to 2020. In addition, the immunophenotypical data and the mutational results from high-through put method were statistically investigated and correlated as well. Results: ①Among the 52 targets, 29 different types of fusion genes were detected in 1948 patients (46.47%) with AML, which demonstrated an "exponential distribution" . ② As the age increased, the number of patients with fusion gene increased first and then decreased gradually. The total incidence rate of fusion genes and MLL rearrangment in children were significantly higher than those in adults (69.18% vs 44.76%, 15.35% vs 8.36%) . ③The mutations involving FLT3 and RAS signaling pathway contributed most in patients with MLL rearrangment. ④No specific immunophenotypic characteristics were found in AML patients with MLL or NUP98 rearrangements. Conclusion: Nearly half of AML patients were accompanied by specific fusion gene expression, the proportions of different fusion genes in pediatric and adults patients were different by multiple PCR. The gene mutations and immunophenotype of these AML patients have certain rules.
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Affiliation(s)
- Q Yan
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Y N Lin
- SINO-US Diagnostics Lab, Tianjin 300385, China
| | - X Q Huang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - L Z Qian
- SINO-US Diagnostics Lab, Tianjin 300385, China
| | - J T Ma
- SINO-US Diagnostics Lab, Tianjin 300385, China
| | - H Zhang
- SINO-US Diagnostics Lab, Tianjin 300385, China
| | - L Chen
- SINO-US Diagnostics Lab, Tianjin 300385, China
| | - X J Chen
- SINO-US Diagnostics Lab, Tianjin 300385, China
| | - Y C Mi
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - K Ru
- SINO-US Diagnostics Lab, Tianjin 300385, China
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Zhang X, Sun J, Yu W, Jin J. Current views on the genetic landscape and management of variant acute promyelocytic leukemia. Biomark Res 2021; 9:33. [PMID: 33957999 PMCID: PMC8101136 DOI: 10.1186/s40364-021-00284-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 04/15/2021] [Indexed: 11/30/2022] Open
Abstract
Acute promyelocytic leukemia (APL) is characterized by the accumulation of promyelocytes in bone marrow. More than 95% of patients with this disease belong to typical APL, which express PML-RARA and are sensitive to differentiation induction therapy containing all-trans retinoic acid (ATRA) and arsenic trioxide (ATO), and they exhibit an excellent clinical outcome. Compared to typical APL, variant APL showed quite different aspects, and how to recognize, diagnose, and treat variant APL remained still challenged at present. Herein, we drew the genetic landscape of variant APL according to recent progresses, then discussed how they contributed to generate APL, and further shared our clinical experiences about variant APL treatment. In practice, when APL phenotype was exhibited but PML-RARA and t(15;17) were negative, variant APL needed to be considered, and fusion gene screen as well as RNA-sequencing should be displayed for making the diagnosis as soon as possible. Strikingly, we found that besides of RARA rearrangements, RARB or RARG rearrangements also generated the phenotype of APL. In addition, some MLL rearrangements, NPM1 rearrangements or others could also drove variant APL in absence of RARA/RARB/RARG rearrangements. These results indicated that one great heterogeneity existed in the genetics of variant APL. Among them, only NPM1-RARA, NUMA-RARA, FIP1L1-RARA, IRF2BP2-RARA, and TFG-RARA have been demonstrated to be sensitive to ATRA, so combined chemotherapy rather than differentiation induction therapy was the standard care for variant APL and these patients would benefit from the quick switch between them. If ATRA-sensitive RARA rearrangement was identified, ATRA could be added back for re-induction of differentiation. Through this review, we hoped to provide one integrated view on the genetic landscape of variant APL and helped to remove the barriers for managing this type of disease.
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Affiliation(s)
- Xiang Zhang
- Department of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, #79 Qingchun Rd, Zhejiang, 310003, Hangzhou, China.,Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, Zhejiang, Hangzhou, China.,Zhejiang University Cancer Center, Zhejiang, Hangzhou, China
| | - Jiewen Sun
- Center Laboratory, Affiliated Secondary Hospital, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, China
| | - Wenjuan Yu
- Department of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, #79 Qingchun Rd, Zhejiang, 310003, Hangzhou, China. .,Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, Zhejiang, Hangzhou, China. .,Zhejiang University Cancer Center, Zhejiang, Hangzhou, China.
| | - Jie Jin
- Department of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, #79 Qingchun Rd, Zhejiang, 310003, Hangzhou, China. .,Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, Zhejiang, Hangzhou, China. .,Zhejiang University Cancer Center, Zhejiang, Hangzhou, China.
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9
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Wang L, Yan X, He J. Does acute promyelocytic leukemia patient with the STAT5B/RARa fusion gene respond well to decitabine?: A case report and literature review. Medicine (Baltimore) 2020; 99:e22923. [PMID: 33120845 PMCID: PMC7581092 DOI: 10.1097/md.0000000000022923] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
RATIONALE Most acute promyelocytic leukemia (APL) patients respond to all-trans-retinoic acid (ATRA)and have a good prognosis. However, variants APL who carry PLZF/RARа, STAT5B/RARа, and STAT3/RARа are insensitive to ATRA and have poor prognoses. The standard treatment for variants APL is still unclear due to the small sample size. PATIENT CONCERNS Here we reported a Chinese male who was admitted to our hospital with the complaint of rib pain, dyspnea, and fever (37.5°C). Blood tests showed leukopenia (1.83 × 10/L), anemia (hemoglobin 73 g/L), and thrombocytopenia (54 × 10/L). Prothrombin time and activated partial thromboplastin time were normal. DIAGNOSES The patient was diagnosed as STAT5b-RARa-positive APL based on the clinical and laboratory findings. INTERVENTIONS ATRA was used immediately for induction treatment, then he was treated with ATRA + arsenic trioxide and got the severe cardiac insufficiency. Subsequently, consolidation chemotherapy was added with ATRA + Huangdai tablets + idarubicin and decitabine, cytarabine, aclamycin (DCAG). OUTCOMES The patient relapsed soon after his first molecular complete remission (CRm), fortunately, he got a second CRm with DCAG. He has survived for more than 9 months and remains CRm, now he is looking for a suitable donor to prepare for hematopoietic stem cell transplantation (HSCT). LESSONS APL patients with STAT5B-RARa is not only resistant to ATRA, but also to conventional combination chemotherapy such as daunorubicin and cytarabine/idarubicin and cytarabine or other regimens. Relapse and extramedullary infiltration is common, HSCT is a effective treatment, and the best time for HSCT is after the first CR. It should be noted that this patient got CRm with DCAG after relapse, so the role of decitabine in APL with STAT5B-RARa needs to be considered.
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10
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Mannan A, Muhsen IN, Barragán E, Sanz MA, Mohty M, Hashmi SK, Aljurf M. Genotypic and Phenotypic Characteristics of Acute Promyelocytic Leukemia Translocation Variants. Hematol Oncol Stem Cell Ther 2020; 13:189-201. [PMID: 32473106 DOI: 10.1016/j.hemonc.2020.05.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 05/04/2020] [Indexed: 02/06/2023] Open
Abstract
Acute promyelocytic leukemia (APL) is a special disease entity of acute myeloid leukemia (AML). The clinical use of all-trans retinoic acid (ATRA) has transformed APL into the most curable form of AML. The majority of APL cases are characterized by the fusion gene PML-RARA. Although the PML-RARA fusion gene can be detected in almost all APL cases, translocation variants of APL have been reported. To date, this is the most comprehensive review of these translocations, discussing 15 different variants. Reviewed genes involved in APL variants include: ZBTB16, NPM, NuMA, STAT5b, PRKAR1A, FIP1L1, BCOR, NABP1, TBLR1, GTF2I, IRF2BP2, FNDC3B, ADAMDTS17, STAT3, and TFG. The genotypic and phenotypic features of APL translocations are summarized. All reported studies were either case reports or case series indicating the rarity of these entities and limiting the ability to drive conclusions regarding their characteristics. However, reported variants have shown variable clinical and morphological features, with diverse responsiveness to ATRA.
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Affiliation(s)
- Abdul Mannan
- Betsi Cadwaladr University Health Board, Bangor, UK
| | - Ibrahim N Muhsen
- Department of Medicine, Houston Methodist Hospital, Houston, TX, USA.
| | - Eva Barragán
- Department of Hematology, Hospital Universitari i Politecnic La Fe, Valencia, Spain; Department of Medicine, University of Valencia, Valencia, Spain; Centro de Investigación Biomédica en Red de Cáncer, Instituto Carlos III, Madrid, Spain
| | - Miguel A Sanz
- Department of Hematology, Hospital Universitari i Politecnic La Fe, Valencia, Spain; Department of Medicine, University of Valencia, Valencia, Spain; Centro de Investigación Biomédica en Red de Cáncer, Instituto Carlos III, Madrid, Spain
| | | | - Shahrukh K Hashmi
- Oncology Center, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia; Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Mahmoud Aljurf
- Oncology Center, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
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11
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Sobas M, Talarn-Forcadell MC, Martínez-Cuadrón D, Escoda L, García-Pérez MJ, Mariz J, Mela-Osorio MJ, Fernández I, Alonso-Domínguez JM, Cornago-Navascués J, Rodríguez-Macias G, Amutio ME, Rodríguez-Medina C, Esteve J, Sokół A, Murciano-Carrillo T, Calasanz MJ, Barrios M, Barragán E, Sanz MA, Montesinos P. PLZF-RAR α, NPM1-RAR α, and Other Acute Promyelocytic Leukemia Variants: The PETHEMA Registry Experience and Systematic Literature Review. Cancers (Basel) 2020; 12:cancers12051313. [PMID: 32455804 PMCID: PMC7281281 DOI: 10.3390/cancers12051313] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/16/2020] [Accepted: 05/18/2020] [Indexed: 12/23/2022] Open
Abstract
It has been suggested that 1–2% of acute promyelocytic leukemia (APL) patients present variant rearrangements of retinoic acid receptor alpha (RARα) fusion gene, with the promyelocytic leukaemia zinc finger (PLZF)/RARα being the most frequent. Resistance to all-trans-retinoic acid (ATRA) and arsenic trioxide (ATO) has been suggested in PLZF/RARα and other variant APLs. Herein, we analyze the incidence, characteristics, and outcomes of variant APLs reported to the multinational PETHEMA (Programa para el Tratamiento de Hemopatias Malignas) registry, and we perform a systematic review in order to shed light on strategies to improve management of these extremely rare diseases. Of 2895 patients with genetically confirmed APL in the PETHEMA registry, 11 had variant APL (0.4%) (9 PLZF-RARα and 2 NPM1-RARα), 9 were men, with median age of 44.6 years (3 months to 76 years), median leucocytes (WBC) 16.8 × 109/L, and frequent coagulopathy. Eight patients were treated with ATRA plus chemotherapy-based regimens, and 3 with chemotherapy-based. As compared to previous reports, complete remission and survival was slightly better in our cohort, with 73% complete remission (CR) and 73% survival despite a high relapse rate (43%). After analyzing our series and performing a comprehensive and critical review of the literature, strong recommendations on appropriate management of variant APL are not possible due to the low number and heterogeneity of patients reported so far.
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Affiliation(s)
- Marta Sobas
- Blood Neoplasms and Bone Marrow Transplantation, Department of Hematology, Wroclaw Medical University, 50-367 Wrocław, Poland;
| | | | - David Martínez-Cuadrón
- Department of Hematology, Hospital Universitari I Politècnic La Fe, 46-009 Valencia, Spain; (D.M.-C.); (M.A.S.)
- CIBERONC Instituto de Salud Carlos III, 28-020 Madrid, Spain;
| | - Lourdes Escoda
- Hospital of Tarragona “Joan XXIII”, Hematology-ICO, 43-005 Tarragona, Spain; (M.C.T.-F.); (L.E.)
| | | | - Jose Mariz
- Department of Hematology, Istituto Portugues de Oncologi IPO, 4200-072 Porto, Portugal;
| | - María J. Mela-Osorio
- Fundaleu, Department of Hematology, Buenos Aires 1114, Argentina; (M.J.M.-O.); (I.F.)
| | - Isolda Fernández
- Fundaleu, Department of Hematology, Buenos Aires 1114, Argentina; (M.J.M.-O.); (I.F.)
| | - Juan M. Alonso-Domínguez
- Department of Hematology, University Hospital Universitario Fundacion Jimenez Diaz IIS-FJD, 28-040 Madrid, Spain; (J.M.A.-D.); (J.C.-N.)
| | - Javier Cornago-Navascués
- Department of Hematology, University Hospital Universitario Fundacion Jimenez Diaz IIS-FJD, 28-040 Madrid, Spain; (J.M.A.-D.); (J.C.-N.)
| | | | - María E. Amutio
- Department of Hematology, Hospital de Cruces, 48-903 Barakaldo, Spain;
| | - Carlos Rodríguez-Medina
- Department of Hematology, Hospital Universitario Dr. Negrin, 35-010 Las Palmas de Gran Canaria, Spain;
| | - Jordi Esteve
- Department of Hematology, Hospital Clinic, 08-036 Barcelona, Spain;
| | - Agnieszka Sokół
- Department of Paediatric Bone Marrow Transplantation, Oncology and Hematology, Wroclaw Medical University, 50-367 Wrocław, Poland;
| | | | - María J. Calasanz
- Department of Hematology, Clinica Universitaria de Navarra, 31-008 Pamplona, Spain;
| | - Manuel Barrios
- Department of Hematology, Hospital Carlos Haya, 29-014 Málaga, Spain;
| | - Eva Barragán
- CIBERONC Instituto de Salud Carlos III, 28-020 Madrid, Spain;
- Department of Molecular Biology Laboratory, Hospital Universitari I Politècnic La Fe, 46-009 Valencia, Spain
| | - Miguel A. Sanz
- Department of Hematology, Hospital Universitari I Politècnic La Fe, 46-009 Valencia, Spain; (D.M.-C.); (M.A.S.)
- CIBERONC Instituto de Salud Carlos III, 28-020 Madrid, Spain;
| | - Pau Montesinos
- Department of Hematology, Hospital Universitari I Politècnic La Fe, 46-009 Valencia, Spain; (D.M.-C.); (M.A.S.)
- CIBERONC Instituto de Salud Carlos III, 28-020 Madrid, Spain;
- Correspondence:
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12
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Geoffroy MC, de Thé H. Classic and Variants APLs, as Viewed from a Therapy Response. Cancers (Basel) 2020; 12:E967. [PMID: 32295268 PMCID: PMC7226009 DOI: 10.3390/cancers12040967] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/09/2020] [Accepted: 04/09/2020] [Indexed: 12/12/2022] Open
Abstract
Most acute promyelocytic leukemia (APL) are caused by PML-RARA, a translocation-driven fusion oncoprotein discovered three decades ago. Over the years, several other types of rare X-RARA fusions have been described, while recently, oncogenic fusion proteins involving other retinoic acid receptors (RARB or RARG) have been associated to very rare cases of acute promyelocytic leukemia. PML-RARA driven pathogenesis and the molecular basis for therapy response have been the focus of many studies, which have now converged into an integrated physio-pathological model. The latter is well supported by clinical and molecular studies on patients, making APL one of the rare hematological disorder cured by targeted therapies. Here we review recent data on APL-like diseases not driven by the PML-RARA fusion and discuss these in view of current understanding of "classic" APL pathogenesis and therapy response.
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Affiliation(s)
- Marie-Claude Geoffroy
- Institut National de la Santé et de la Recherche Médicale (INSERM) U944, Equipe Labellisée par la Ligue Nationale contre le Cancer, 75010 Paris, France;
- Centre National de la Recherche Scientifique Unité Mixte de Recherche 7212, Institut Universitaire d'Hématologie (IUH), 75010 Paris, France
- Institut de Recherche Saint-Louis, Université de Paris, 75010 Paris, France
| | - Hugues de Thé
- Institut National de la Santé et de la Recherche Médicale (INSERM) U944, Equipe Labellisée par la Ligue Nationale contre le Cancer, 75010 Paris, France;
- Centre National de la Recherche Scientifique Unité Mixte de Recherche 7212, Institut Universitaire d'Hématologie (IUH), 75010 Paris, France
- Institut de Recherche Saint-Louis, Université de Paris, 75010 Paris, France
- Assistance Publique-Hôpitaux de Paris, Service de Biochimie, Hôpital St-Louis, 75010 Paris, France
- Collège de France, PSL Research University, INSERM U1050, CNRS UMR 7241, 75005 Paris, France
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13
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Peterson JF, He RR, Nayer H, Cuevo RS, Smadbeck JB, Vasmatzis G, Greipp PT, Ketterling RP, Hoppman NL, Baughn LB. Characterization of a rarely reported STAT5B/RARA gene fusion in a young adult with newly diagnosed acute promyelocytic leukemia with resistance to ATRA therapy. Cancer Genet 2019; 237:51-54. [PMID: 31447065 DOI: 10.1016/j.cancergen.2019.06.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 06/08/2019] [Accepted: 06/11/2019] [Indexed: 01/17/2023]
Abstract
The detection of PML/RARA or variant RARA rearrangements is critical for the diagnosis and treatment of patients with newly diagnosed acute promyelocytic leukemia (APL). While most cases of APL harboring the PML/RARA fusion respond to all-trans retinoic acid (ATRA), some variant RARA rearrangements are ATRA insensitive. Herein, we report a 27-year-old male with newly diagnosed, rapidly progressive APL and a rarely described STAT5B/RARA fusion with known resistance to ATRA therapy. While the PML/RARA dual-color dual-fusion fluorescence in situ hybridization (FISH) probe study was negative, the RARA break-apart probe study revealed an atypical RARA rearrangement in 95% of nuclei. A next generation sequencing assay, mate-pair sequencing, was subsequently performed to further characterize the RARA rearrangement and identified the RARA gene fusion partner STAT5B.
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Affiliation(s)
- Jess F Peterson
- Division of Laboratory Medicine and Pathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN, United States.
| | - Rui R He
- Department of Pathology, Inova Fairfax Hospital, Falls Church, VA, United States
| | - Hassan Nayer
- Department of Pathology, Inova Fairfax Hospital, Falls Church, VA, United States
| | - Raymund S Cuevo
- Inova Schar Cancer Institute, Inova Fairfax Hospital, Falls Church, VA, United States
| | - James B Smadbeck
- Center for Individualized Medicine-Biomarker Discovery, Mayo Clinic, Rochester, MN, United States
| | - George Vasmatzis
- Center for Individualized Medicine-Biomarker Discovery, Mayo Clinic, Rochester, MN, United States
| | - Patricia T Greipp
- Division of Laboratory Medicine and Pathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN, United States
| | - Rhett P Ketterling
- Division of Laboratory Medicine and Pathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN, United States
| | - Nicole L Hoppman
- Division of Laboratory Medicine and Pathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN, United States
| | - Linda B Baughn
- Division of Laboratory Medicine and Pathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN, United States
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14
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Wang X, Wang J, Zhang L. Characterization of atypical acute promyelocytic leukaemia: Three cases report and literature review. Medicine (Baltimore) 2019; 98:e15537. [PMID: 31083206 PMCID: PMC6531224 DOI: 10.1097/md.0000000000015537] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 03/30/2019] [Accepted: 04/09/2019] [Indexed: 02/05/2023] Open
Abstract
RATIONALE The vast majority of acute promyelocytic leukemia (APL) is characterized with a specific chromosomal translocation t (15, 17) (q22, q21), which fuses PML-RARα leading to a good response to all-trans retinoic acid (ATRA) and arsenic trioxide (ATO). However, there are few cases of atypical APL, including PLZF-RARα, F1P1L1-RARα, STAT5b-RARα, et al. Neither PLZF-RARα nor STAT5b-RARα are sensitive to ATRA and ATO, and the prognosis is poor. PATIENT CONCERNS Here we have 3 cases (PLZF-RARα, n = 2; STAT5b-RARα, n = 1). Case A, A 53-year-old Chinese female had suffered ecchymosis in both legs for 3 days. Case B, A 44 years old male suffered pain from lower limbs and hip. Case C, 52-year-old male patient presented with fever for 3 weeks invalid to antibiotics and gingival bleeding for 1 week. DIAGNOSES With RT-PCR and karyotype, Case A is diagnosed with STAT5b-RARα-positive APL.Case B, C are diagnosed with PLZF-RARα-positive APL. INTERVENTIONS In case A, ATO, and ATRA were used for induction treatment. In Case B, ATO, and chemotherapy with DA were given in the first induction treatment. In Case C, ATRA, and ATO were used immediately, subsequently, chemotherapy was added with DA, ATRA, and CAG combination treatment, and medium-dose cytarabine with daunorubicin were given regularly. OUTCOMES In Case A, the patient refused the following treatment and discharged on day 25. In Case B, the patient got the disseminated intravascular coagulation (DIC).In Case C, the patient has survived for 7 months and remains CR. LESSONS Both STAT5b-RARα-positive APL and PLZF-RARα-positive APL appear to be resistant to both ATRA and ATO, so combined chemotherapy and allo-HSCT should be considered. Since the prognosis and long-term outcome are poor, more clinical trials, and researches should be taken.
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15
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Hussain L, Maimaitiyiming Y, Islam K, Naranmandura H. Acute promyelocytic leukemia and variant fusion proteins: PLZF-RARα fusion protein at a glance. Semin Oncol 2019; 46:133-144. [DOI: 10.1053/j.seminoncol.2019.04.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 04/16/2019] [Accepted: 04/24/2019] [Indexed: 12/26/2022]
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16
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STAT5b-RARa-positive acute myeloid leukemia: Diagnostic and therapeutic challenges of a rare AML subtype. Leuk Res 2019; 78:21-23. [PMID: 30665050 DOI: 10.1016/j.leukres.2019.01.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 01/11/2019] [Indexed: 11/23/2022]
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17
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Buldini B, Maurer-Granofszky M, Varotto E, Dworzak MN. Flow-Cytometric Monitoring of Minimal Residual Disease in Pediatric Patients With Acute Myeloid Leukemia: Recent Advances and Future Strategies. Front Pediatr 2019; 7:412. [PMID: 31681710 PMCID: PMC6798174 DOI: 10.3389/fped.2019.00412] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 09/25/2019] [Indexed: 01/10/2023] Open
Abstract
Minimal residual disease (MRD) by multiparametric flow cytometry (MFC) has been recently shown as a strong and independent prognostic marker of relapse in pediatric AML (pedAML) when measured at specific time points during Induction and/or Consolidation therapy. Hence, MFC-MRD has the potential to refine the current strategies of pedAML risk stratification, traditionally based on the cytogenetic and molecular genetic aberrations at diagnosis. Consequently, it may guide the modulation of therapy intensity and clinical decision making. However, the use of non-standardized protocols, including different staining panels, analysis, and gating strategies, may hamper a broad implementation of MFC-MRD monitoring in clinical routine. Besides, the thresholds of MRD positivity still need to be validated in large, prospective and multi-center clinical studies, as well as optimal time points of MRD assessment during therapy, to better discriminate patients with different prognosis. In the present review, we summarize the most relevant findings on MFC-MRD testing in pedAML. We examine the clinical significance of MFC-MRD and the recent advances in its standardization, including innovative approaches with an automated analysis of MFC-MRD data. We also touch upon other technologies for MRD assessment in AML, such as quantitative genomic breakpoint PCR, current challenges and future strategies to enable full incorporation of MFC-MRD into clinical practice.
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Affiliation(s)
- Barbara Buldini
- Laboratory of Hematology-Oncology, Department of Woman's and Child's Health, University of Padova, Padova, Italy
| | | | - Elena Varotto
- Laboratory of Hematology-Oncology, Department of Woman's and Child's Health, University of Padova, Padova, Italy
| | - Michael N Dworzak
- Children's Cancer Research Institute (CCRI), St. Anna Kinderkrebsforschung, Vienna, Austria
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18
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Dobrotkova V, Chlapek P, Mazanek P, Sterba J, Veselska R. Traffic lights for retinoids in oncology: molecular markers of retinoid resistance and sensitivity and their use in the management of cancer differentiation therapy. BMC Cancer 2018; 18:1059. [PMID: 30384831 PMCID: PMC6211450 DOI: 10.1186/s12885-018-4966-5] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 10/17/2018] [Indexed: 12/13/2022] Open
Abstract
For decades, retinoids and their synthetic derivatives have been well established anticancer treatments due to their ability to regulate cell growth and induce cell differentiation and apoptosis. Many studies have reported the promising role of retinoids in attaining better outcomes for adult or pediatric patients suffering from several types of cancer, especially acute myeloid leukemia and neuroblastoma. However, even this promising differentiation therapy has some limitations: retinoid toxicity and intrinsic or acquired resistance have been observed in many patients. Therefore, the identification of molecular markers that predict the therapeutic response to retinoid treatment is undoubtedly important for retinoid use in clinical practice. The purpose of this review is to summarize the current knowledge on candidate markers, including both genetic alterations and protein markers, for retinoid resistance and sensitivity in human malignancies.
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Affiliation(s)
- Viera Dobrotkova
- Laboratory of Tumor Biology, Department of Experimental Biology, Faculty of Science, Masaryk University, Kotlarska 2, 61137 Brno, Czech Republic
- International Clinical Research Center, St. Anne’s University Hospital, Pekarska 53, 65691 Brno, Czech Republic
| | - Petr Chlapek
- Laboratory of Tumor Biology, Department of Experimental Biology, Faculty of Science, Masaryk University, Kotlarska 2, 61137 Brno, Czech Republic
- International Clinical Research Center, St. Anne’s University Hospital, Pekarska 53, 65691 Brno, Czech Republic
| | - Pavel Mazanek
- Department of Pediatric Oncology, University Hospital Brno and Faculty of Medicine, Masaryk University, Cernopolni 9, 61300 Brno, Czech Republic
| | - Jaroslav Sterba
- International Clinical Research Center, St. Anne’s University Hospital, Pekarska 53, 65691 Brno, Czech Republic
- Department of Pediatric Oncology, University Hospital Brno and Faculty of Medicine, Masaryk University, Cernopolni 9, 61300 Brno, Czech Republic
| | - Renata Veselska
- Laboratory of Tumor Biology, Department of Experimental Biology, Faculty of Science, Masaryk University, Kotlarska 2, 61137 Brno, Czech Republic
- International Clinical Research Center, St. Anne’s University Hospital, Pekarska 53, 65691 Brno, Czech Republic
- Department of Pediatric Oncology, University Hospital Brno and Faculty of Medicine, Masaryk University, Cernopolni 9, 61300 Brno, Czech Republic
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19
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Baba S, Pandith A, Shah Z, Baba R. Pathogenetic implication of fusion genes in acute promyelocytic leukemia and their diagnostic utility. Clin Genet 2018; 95:41-52. [DOI: 10.1111/cge.13372] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 04/19/2018] [Accepted: 04/23/2018] [Indexed: 01/16/2023]
Affiliation(s)
- S.M. Baba
- Department of Immunology and Molecular MedicineSher‐I‐Kashmir Institute of Medical Sciences Srinagar India
| | - A.A. Pandith
- Advanced Centre for Human GeneticsSher‐I‐Kashmir Institute of Medical Sciences Srinagar India
| | - Z.A. Shah
- Department of Immunology and Molecular MedicineSher‐I‐Kashmir Institute of Medical Sciences Srinagar India
| | - R.A. Baba
- Department of Immunology and Molecular MedicineSher‐I‐Kashmir Institute of Medical Sciences Srinagar India
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20
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Zhang C, Wang Y, Liu B, Gong B, Gong X, Liu Y, Mi Y, Wang J. Clinical characteristics of acute promyelocytic leukemia with the STAT5B-RARA fusion gene. Blood Cells Mol Dis 2017; 69:71-73. [PMID: 29030091 DOI: 10.1016/j.bcmd.2017.09.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Accepted: 09/23/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Congxiao Zhang
- Leukemia Center, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, No. 288, Nanjing Road, Tianjin, China
| | - Ying Wang
- Leukemia Center, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, No. 288, Nanjing Road, Tianjin, China.
| | - Bingcheng Liu
- Leukemia Center, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, No. 288, Nanjing Road, Tianjin, China
| | - Benfa Gong
- Leukemia Center, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, No. 288, Nanjing Road, Tianjin, China
| | - Xiaoyuan Gong
- Leukemia Center, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, No. 288, Nanjing Road, Tianjin, China
| | - Yuntao Liu
- Leukemia Center, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, No. 288, Nanjing Road, Tianjin, China
| | - Yingchang Mi
- Leukemia Center, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, No. 288, Nanjing Road, Tianjin, China
| | - Jianxiang Wang
- Leukemia Center, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, No. 288, Nanjing Road, Tianjin, China
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21
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Wang A, Cai X, Qiang P, Duan Q. Successful treatment of a patient with acute promyelocytic leukemia with aSTAT5B/RARAfusion gene using decitabine. Leuk Lymphoma 2017; 59:763-765. [PMID: 28760054 DOI: 10.1080/10428194.2017.1357176] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Anyou Wang
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei, China
| | - Xiaoyan Cai
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei, China
| | - Ping Qiang
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei, China
| | - Qiaohong Duan
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei, China
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22
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Kluk MJ, Abo RP, Brown RD, Kuo FC, Dal Cin P, Pozdnyakova O, Morgan EA, Lindeman NI, DeAngelo DJ, Aster JC. Myeloid neoplasm demonstrating a STAT5B-RARA rearrangement and genetic alterations associated with all-trans retinoic acid resistance identified by a custom next-generation sequencing assay. Cold Spring Harb Mol Case Stud 2016; 1:a000307. [PMID: 27148563 PMCID: PMC4850893 DOI: 10.1101/mcs.a000307] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
We describe the case of a patient presenting with several weeks of symptoms related to pancytopenia associated with a maturation arrest at the late promyelocyte/early myelocyte stage of granulocyte differentiation. A diagnosis of acute promyelocytic leukemia was considered, but the morphologic features were atypical for this entity and conventional tests for the presence of a PML-RARA fusion gene were negative. Additional analysis using a custom next-generation sequencing assay revealed a rearrangement producing a STAT5B-RARA fusion gene, which was confirmed by reverse transcription polymerase chain reaction (RT-PCR) and supplementary cytogenetic studies, allowing the diagnosis of a morphologically atypical form of acute promyelocytic leukemia to be made. Analysis of the sequencing data permitted characterization of both chromosomal breakpoints and revealed two additional alterations, a small deletion in RARA exon 9 and a RARA R276W substitution, that have been linked to resistance to all-trans retinoic acid. This case highlights how next-generation sequencing can augment currently standard testing to establish diagnoses in difficult cases, and in doing so help guide selection of therapy.
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Affiliation(s)
- Michael J Kluk
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA
| | - Ryan P Abo
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, USA
| | - Ronald D Brown
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA
| | - Frank C Kuo
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA
| | - Paola Dal Cin
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA
| | - Olga Pozdnyakova
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA
| | - Elizabeth A Morgan
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA
| | - Neal I Lindeman
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA
| | - Daniel J DeAngelo
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, USA
| | - Jon C Aster
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA
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23
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Yan W, Zhang G. Molecular Characteristics and Clinical Significance of 12 Fusion Genes in Acute Promyelocytic Leukemia: A Systematic Review. Acta Haematol 2016; 136:1-15. [PMID: 27089249 DOI: 10.1159/000444514] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 02/07/2016] [Indexed: 01/23/2023]
Abstract
Acute promyelocytic leukemia (APL) is characterized by the generation of the promyelocytic leukemia-retinoic acid (RA) receptor α (PML-RARα) fusion gene. PML-RARα is the central leukemia-initiating event in APL and is directly targeted by all-trans-RA (ATRA) as well as arsenic. In classic APL harboring PML-RARα transcripts, more than 90% of patients can achieve complete remission when treated with ATRA combined with arsenic trioxide chemotherapy. In the last 20 years, more than 10 variant fusion genes have been found and identified in APL patients. These variant APL cases present different clinical phenotypes and treatment outcomes. All variant APL cases show a similar breakpoint within the RARα gene, whereas its partner genes are variable. These fusion proteins have the ability to repress rather than activate retinoic targets. These chimeric proteins also possess different molecular characteristics, thereby resulting in variable sensitivities to ATRA and clinical outcomes. In this review, we comprehensively analyze various rearrangements in variant APL cases that have been reported in the literature as well as the molecular characteristics and functions of the fusion proteins derived from different RARα partner genes and their clinical implications.
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Affiliation(s)
- Wenzhe Yan
- Department of Hematology/Institute of Molecular Hematology, The Second Xiang-Ya Hospital, Central South University, Changsha, PR China
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24
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[Acute promyelocytic leukemia with stat5b- RARα fusiongene: a case report and literatures review]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2016; 37:68-9. [PMID: 26876258 PMCID: PMC7342306 DOI: 10.3760/cma.j.issn.0253-2727.2016.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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25
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Foucar K, Anastasi J. Acute Myeloid Leukemia With Recurrent Cytogenetic Abnormalities. Am J Clin Pathol 2015; 144:6-18. [PMID: 26071458 DOI: 10.1309/ajcpi9c8uilyqtns] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
OBJECTIVES Session 1 of the 2013 Society for Hematopathology/European Association for Hematopathology Workshop was devoted to the cases of acute myeloid leukemia (AML) with recurrent cytogenetic abnormalities. METHODS Based on World Health Organization 2008 criteria, seven specific translocations are defined as "recurrent" in AML. Of these seven, three are considered to be AML defining regardless of blast percentage. Workshop cases provided the opportunity to consider potential new AML-defining cytogenetic mutations, as well as other unique aspects of AML with cytogenetic abnormalities. RESULTS Most of the 38 cases submitted were acute promyelocytic leukemia (APL) with t(15;17)(q24.1;q21.1) and so-called variants (12 cases), AML with t(8;21)(q22;q22) (seven cases), AML with inv(3)(q11q26.2) (six cases), and AML with 11q23 translocations (five cases). CONCLUSIONS This review focuses on providing updated recommendations for the rapid diagnosis of APL, discussing the types and significance of variant RARA mutations in APL-like leukemias, and refining low-blast-count (oligoblastic) AML. In addition, the significance of unique morphologic, immunophenotypic, and genetic variations in AML defined by a recurrent cytogenetic abnormality is included.
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26
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Zhang L, Samad A, Pombo-de-Oliveira MS, Scelo G, Smith MT, Feusner J, Wiemels JL, Metayer C. Global characteristics of childhood acute promyelocytic leukemia. Blood Rev 2015; 29:101-25. [PMID: 25445717 PMCID: PMC4379131 DOI: 10.1016/j.blre.2014.09.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 09/21/2014] [Accepted: 09/23/2014] [Indexed: 12/29/2022]
Abstract
Acute promyelocytic leukemia (APL) comprises approximately 5-10% of childhood acute myeloid leukemia (AML) cases in the US. While variation in this percentage among other populations was noted previously, global patterns of childhood APL have not been thoroughly characterized. In this comprehensive review of childhood APL, we examined its geographic pattern and the potential contribution of environmental factors to observed variation. In 142 studies (spanning >60 countries) identified, variation was apparent-de novo APL represented from 2% (Switzerland) to >50% (Nicaragua) of childhood AML in different geographic regions. Because a limited number of previous studies addressed specific environmental exposures that potentially underlie childhood APL development, we gathered 28 childhood cases of therapy-related APL, which exemplified associations between prior exposures to chemotherapeutic drugs/radiation and APL diagnosis. Future population-based studies examining childhood APL patterns and the potential association with specific environmental exposures and other risk factors are needed.
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Affiliation(s)
- L Zhang
- School of Public Health, University of California, Berkeley, USA.
| | - A Samad
- School of Public Health, University of California, Berkeley, USA.
| | - M S Pombo-de-Oliveira
- Pediatric Hematology-Oncology Program, Research Center-National Institute of Cancer, Rio de Janeiro, Brazil.
| | - G Scelo
- International Agency for Research on Cancer (IARC), Lyon, France.
| | - M T Smith
- School of Public Health, University of California, Berkeley, USA.
| | - J Feusner
- Department of Hematology, Children's Hospital and Research Center Oakland, Oakland, USA.
| | - J L Wiemels
- Department of Epidemiology and Biostatistics, University of California, San Francisco, USA.
| | - C Metayer
- School of Public Health, University of California, Berkeley, USA.
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27
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Wang YY, Hao J, Liu ZY, Weng XQ, Sheng Y, Jiang CL, Zhu YM, Chen B, Xiong SM, Li JM, Chen QS, Chen HY, Qiao C, Chen Y. Novel STAT5B-RARA fusion transcript in acute promyelocytic leukemia: identification and treatment response. Leuk Lymphoma 2015; 56:2731-4. [PMID: 25629986 DOI: 10.3109/10428194.2015.1007454] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Yan-Yu Wang
- a Department of Hematology , Bei Zhan Hospital , Shanghai , China
| | - Jie Hao
- a Department of Hematology , Bei Zhan Hospital , Shanghai , China
| | - Zhan-Yun Liu
- a Department of Hematology , Bei Zhan Hospital , Shanghai , China
| | - Xiang-Qin Weng
- b State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated with Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Yan Sheng
- b State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated with Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Chun-Lei Jiang
- b State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated with Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Yong-Mei Zhu
- b State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated with Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Bing Chen
- b State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated with Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Shu-Min Xiong
- b State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated with Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Jun-Min Li
- b State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated with Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Qiu-Sheng Chen
- b State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated with Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Hao-yue Chen
- c Jingjiang People's Hospital, The Seventh Affiliated Hospital of Yangzhou University , Jingjiang , Jiangsu Province , China
| | - Chun Qiao
- d Department of Hematology , The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital , Nanjing , China
| | - Yu Chen
- b State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital Affiliated with Shanghai Jiao Tong University School of Medicine , Shanghai , China
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28
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Li J, Zhong HY, Zhang Y, Xiao L, Bai LH, Liu SF, Zhou GB, Zhang GS. GTF2I-RARA is a novel fusion transcript in a t(7;17) variant of acute promyelocytic leukaemia with clinical resistance to retinoic acid. Br J Haematol 2014; 168:904-8. [PMID: 25284716 DOI: 10.1111/bjh.13157] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ji Li
- Department of Haematology/Institute of Molecular Haematology, the Second Xiang-Ya Hospital, Central South University, Changsha, Hunan, China
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29
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De Braekeleer E, Douet-Guilbert N, De Braekeleer M. RARA fusion genes in acute promyelocytic leukemia: a review. Expert Rev Hematol 2014; 7:347-57. [PMID: 24720386 DOI: 10.1586/17474086.2014.903794] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The t(15;17)(q24;q21), generating a PML-RARA fusion gene, is the hallmark of acute promyelocytic leukemia (APL). At present, eight other genes fusing with RARA have been identified. The resulting fusion proteins retain domains of the RARA protein allowing binding to retinoic acid response elements (RARE) and dimerization with the retinoid X receptor protein (RXRA). They participate in protein-protein interactions, associating with RXRA to form hetero-oligomeric complexes that can bind to RARE. They have a dominant-negative effect on wild-type RARA/RXRA transcriptional activity. Moreover, RARA fusion proteins can homodimerize, conferring the ability to regulate an expanded repertoire of genes normally not affected by RARA. RARA fusion proteins behave as potent transcriptional repressors of retinoic acid signalling, inducing a differentiation blockage at the promyelocyte stage which can be overcome with therapeutic doses of ATRA or arsenic trioxide. However, resistance to these two drugs is a major problem, which necessitates development of new therapies.
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Affiliation(s)
- Etienne De Braekeleer
- Laboratoire d'Histologie, Embryologie et Cytogénétique, Faculté de Médecine et des Sciences de la Santé, Université de Brest, Brest, France
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30
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Boztug H, Mühlegger N, Glogova E, Mann G, Urban C, Meister B, Schmitt K, Jones N, Attarbaschi A, Haas O, Strehl S, Lion T, Pötschger U, Fink FM, Gadner H, Dworzak M. Development of treatment and clinical results in childhood AML in Austria (1993-2013). MEMO-MAGAZINE OF EUROPEAN MEDICAL ONCOLOGY 2014; 7:63-74. [PMID: 32288851 PMCID: PMC7102234 DOI: 10.1007/s12254-014-0135-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Accepted: 02/11/2014] [Indexed: 11/12/2022]
Abstract
Background Since the early 1990s, three consecutive pediatric acute myeloid leukemia (AML) trials have been performed in Austria (AML-Berlin-Frankfurt-Münster (BFM) 93, AML-BFM 98, and AML-BFM 2004) in close cooperation with the international BFM study center. Herein, we review the pertinent patient characteristics, therapy, and outcome data. Patients and methods From January 1993 to April 2013, 249 children and adolescents (193 protocol patients) diagnosed with AML were enrolled in the three BFM studies. Patients were mainly treated in one of five pediatric hematology/oncology centers distributed over Austria. Results Many characteristics and outcome parameters were not statistically different between the three trials. Almost similar proportions of patients were stratified into two risk groups: standard risk (SR) (approximately 37 % overall) and high-risk (HR) (61 %). MLL rearrangements were found in 23 % of patients overall as the most frequent genetic aberration subtype. Complete remission (CR) was achieved by 84-95 % of patients. The most important type of event was leukemic relapse (5-year cumulative incidence 40 ± 8 %, 21 ± 5 %, and 39 ± 6 %; p = 0.058), with a trend to a higher rate specifically in SR patients of study AML-BFM 2004 compared with AML-BFM 98. Importantly, the frequency of death from causes other than relapse sequelae declined over the years (AML-BFM 93: 5/42 12 %, AML-BFM 98: 5/57 9 %, and AML-BFM 2004: 5/94 5 %). Altogether, event-free survival at 5 years varied insignificantly (48 ± 8 %, 61 ± 7 %, and 50 ± 6 %; p = 0.406). Nevertheless, survival (pSU) apparently improved from BFM 93 to subsequent studies, both overall (57 ± 8 %, 75 ± 6 %, and 62 ± 6 %; p = 0.046) and regarding the HR group (5-year-probability of survival (pSU) 40 ± 10 %, 66 ± 8 %, and 52 ± 8 %; p = 0.039). Conclusion Treatment of pediatric AML in Austria renders survival rates in the range of international best practice. However, unambiguous statistical comparison of treatment periods is eventually hampered by small numbers and inequalities of recruitment. Hence, only internationally collaborative trials will allow developing treatment further to achieve higher cure rates with fewer events.
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Affiliation(s)
- Heidrun Boztug
- 1St. Anna Kinderspital and Children's Cancer Research Institute, Department of Pediatrics, Medical University of Vienna, Kinderspitalgasse 6, 1090 Vienna, Austria
| | - Nora Mühlegger
- 1St. Anna Kinderspital and Children's Cancer Research Institute, Department of Pediatrics, Medical University of Vienna, Kinderspitalgasse 6, 1090 Vienna, Austria
| | - Evgenia Glogova
- 1St. Anna Kinderspital and Children's Cancer Research Institute, Department of Pediatrics, Medical University of Vienna, Kinderspitalgasse 6, 1090 Vienna, Austria
| | - Georg Mann
- 1St. Anna Kinderspital and Children's Cancer Research Institute, Department of Pediatrics, Medical University of Vienna, Kinderspitalgasse 6, 1090 Vienna, Austria
| | - Christian Urban
- 2Pediatric Oncology-Hematology, Department of Pediatrics, Medical University of Graz, Graz, Austria
| | - Bernhard Meister
- 3Pediatric Oncology-Hematology, Department of Pediatrics I, Medical University of Innsbruck, Innsbruck, Austria
| | - Klaus Schmitt
- Department of Pediatric Oncology-Hematology, Landes-Kinderklinik Linz, Linz, Austria
| | - Neil Jones
- 6Pediatric Oncology-Hematology, Department of Pediatrics, Paracelsus Medical University of Salzburg, Salzburg, Austria
| | - Andishe Attarbaschi
- 1St. Anna Kinderspital and Children's Cancer Research Institute, Department of Pediatrics, Medical University of Vienna, Kinderspitalgasse 6, 1090 Vienna, Austria
| | - Oskar Haas
- 1St. Anna Kinderspital and Children's Cancer Research Institute, Department of Pediatrics, Medical University of Vienna, Kinderspitalgasse 6, 1090 Vienna, Austria
| | - Sabine Strehl
- 1St. Anna Kinderspital and Children's Cancer Research Institute, Department of Pediatrics, Medical University of Vienna, Kinderspitalgasse 6, 1090 Vienna, Austria
| | - Thomas Lion
- 1St. Anna Kinderspital and Children's Cancer Research Institute, Department of Pediatrics, Medical University of Vienna, Kinderspitalgasse 6, 1090 Vienna, Austria
| | - Ulrike Pötschger
- 1St. Anna Kinderspital and Children's Cancer Research Institute, Department of Pediatrics, Medical University of Vienna, Kinderspitalgasse 6, 1090 Vienna, Austria
| | - Franz-Martin Fink
- 3Pediatric Oncology-Hematology, Department of Pediatrics I, Medical University of Innsbruck, Innsbruck, Austria.,Department of Pediatrics, Bezirkskrankenhaus St. Johann in Tirol, Tirol, Austria
| | - Helmut Gadner
- 1St. Anna Kinderspital and Children's Cancer Research Institute, Department of Pediatrics, Medical University of Vienna, Kinderspitalgasse 6, 1090 Vienna, Austria
| | - Michael Dworzak
- 1St. Anna Kinderspital and Children's Cancer Research Institute, Department of Pediatrics, Medical University of Vienna, Kinderspitalgasse 6, 1090 Vienna, Austria
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Abstract
Acute promyelocytic leukaemia (APL) is a rare subtype of acute myeloid leukaemia. The outcome of paediatric APL has improved substantially over the past 20 years; cure rates above 80% are expected when all-trans retinoic acid (ATRA) is given with anthracycline-based regimens. The presenting features of paediatric APL may include severe bleeding and thrombotic complications, which contribute to the high early death rate. The incidence of leucocytosis and the microgranular subtype is greater in paediatric than adult APL, and children experience greater ATRA-related toxicity. It is crucial to begin ATRA therapy and intensive platelet and fibrinogen replacement on first suspicion of APL. Recent risk-adapted therapeutic trials have shown that patients at greater risk of relapse benefit from the introduction of high-dose cytarabine during consolidation. Combination therapy with ATRA and arsenic trioxide provides very effective frontline treatment and may reduce the need for subsequent anthracycline therapy.
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Affiliation(s)
- Oussama Abla
- Division of Haematology/Oncology, Department of Paediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Canada
| | - Raul C. Ribeiro
- Department of Oncology and International Outreach Program, Saint Jude Children’s Research Hospital, Memphis, USA
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32
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Mechanisms of action and resistance to all-trans retinoic acid (ATRA) and arsenic trioxide (As2O3) in acute promyelocytic leukemia. Int J Hematol 2013; 97:717-25. [DOI: 10.1007/s12185-013-1354-4] [Citation(s) in RCA: 130] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Revised: 04/26/2013] [Accepted: 05/01/2013] [Indexed: 01/10/2023]
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